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WO2020100524A1 - Dispositif de climatisation pour véhicule - Google Patents

Dispositif de climatisation pour véhicule Download PDF

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Publication number
WO2020100524A1
WO2020100524A1 PCT/JP2019/041091 JP2019041091W WO2020100524A1 WO 2020100524 A1 WO2020100524 A1 WO 2020100524A1 JP 2019041091 W JP2019041091 W JP 2019041091W WO 2020100524 A1 WO2020100524 A1 WO 2020100524A1
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WO
WIPO (PCT)
Prior art keywords
temperature
refrigerant
heat
heat exchanger
mode
Prior art date
Application number
PCT/JP2019/041091
Other languages
English (en)
Japanese (ja)
Inventor
竜 宮腰
孝史 青木
雄満 山崎
洪銘 張
耕平 山下
Original Assignee
サンデン・オートモーティブクライメイトシステム株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by サンデン・オートモーティブクライメイトシステム株式会社 filed Critical サンデン・オートモーティブクライメイトシステム株式会社
Priority to CN201980074262.3A priority Critical patent/CN113165479A/zh
Publication of WO2020100524A1 publication Critical patent/WO2020100524A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/22—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/32—Cooling devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B1/00—Compression machines, plants or systems with non-reversible cycle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B5/00—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity
    • F25B5/02—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity arranged in parallel

Definitions

  • the present invention relates to a heat pump type air conditioner that air-conditions the interior of a vehicle, and in particular, to a device that is mounted on a vehicle and can also control the temperature of a temperature-controlled object.
  • an air conditioner that can be applied to such a vehicle, a compressor, a radiator, a heat absorber, and an outdoor heat exchanger are provided with a refrigerant circuit, and the refrigerant discharged from the compressor is provided.
  • the radiator dissipates heat, and the refrigerant dissipated in this radiator absorbs heat in the outdoor heat exchanger to heat it.
  • the refrigerant discharged from the compressor dissipates heat in the outdoor heat exchanger and evaporates in the heat absorber (evaporator).
  • An air conditioner has been developed to cool the interior of the vehicle by absorbing heat and cooling the air (for example, see Patent Document 1).
  • the present invention has been made in order to solve the above-mentioned conventional technical problems, and when an abnormality occurs in the information necessary for the temperature control of the temperature-controlled object mounted on the vehicle, the vehicle can be safely operated. It is an object of the present invention to provide an air conditioning system for a vehicle that can continue air conditioning in a room.
  • the vehicle air conditioner of the present invention is a compressor that compresses the refrigerant, an indoor heat exchanger for exchanging heat between the air supplied to the passenger compartment and the refrigerant, and an outdoor heat exchanger provided outside the passenger compartment,
  • a device for air conditioning the interior of the vehicle equipped with a control device which is equipped with a device temperature adjustment device mounted on the vehicle for adjusting the temperature of an object to be temperature controlled, and the control device is controlled by the device temperature adjustment device.
  • the information necessary for the temperature control of the temperature control target is the temperature of the heat medium for controlling the temperature control target, the temperature of the temperature control target,
  • the refrigerant is flowing through the operating condition of the circulation device for circulating the heat medium to the temperature controlled object and the heat exchanger for the temperature controlled object for cooling the temperature controlled object, to the indoor heat exchanger
  • the operating state of the indoor heat exchanger valve device for controlling the flow of the refrigerant, the operating state of the temperature control target valve device for controlling the flow of the refrigerant to the temperature control target heat exchanger It is characterized in that it is any one of the temperature control requests of the temperature controlled object, a combination thereof, or all of them.
  • the vehicle air conditioner according to the invention of claim 3 is characterized in that, in each of the above inventions, the abnormality related to the information necessary for the temperature control of the object to be temperature controlled includes the communication interruption of the information.
  • the vehicle air conditioner according to the invention of claim 4 is a compressor for compressing a refrigerant, an indoor heat exchanger for exchanging heat between the air supplied to the passenger compartment and the refrigerant, and an outdoor heat exchanger provided outside the passenger compartment.
  • a control device for air conditioning the interior of the vehicle which is equipped with a device temperature adjusting device for adjusting the temperature of the temperature-controlled object mounted on the vehicle, and the control device is configured by the device temperature adjusting device. It has a first operation mode in which the temperature of the temperature-controlled object is adjusted and a second operation mode in which the temperature of the temperature-controlled object is not adjusted. When an abnormality relating to information that is not necessary for temperature control occurs, execution of the second operation mode is prohibited and execution of the first operation mode is permitted.
  • the indoor heat exchanger is a heat absorber for absorbing the refrigerant to cool the air supplied to the vehicle interior
  • the device temperature adjusting device is:
  • the first operation mode executed by the control device has a heat exchanger for temperature controlled, which cools the target to be temperature controlled by absorbing the heat of the refrigerant, and the first operation mode executed by the control device is that the refrigerant discharged from the compressor is the outdoor heat exchanger.
  • Heat-dissipating the refrigerant decompressing the heat-dissipated refrigerant, and then absorbing the heat in the heat absorber and the heat exchanger for temperature-controlled air-conditioning + cooling mode for the temperature-controlled air-conditioning and the refrigerant discharged from the compressor for outdoor heat exchange. It is characterized by including either or both of the temperature controlled cooling (single) modes in which the heat is dissipated by the heat exchanger and the heat-dissipated refrigerant is decompressed and then absorbed by the heat exchanger for temperature controlled And
  • the vehicle air conditioner is the valve for an indoor heat exchanger for controlling the flow of the refrigerant to the heat absorber when the refrigerant is flowing through the heat exchanger for temperature adjustment in the above invention.
  • the rotation speed of the compressor is controlled based on the temperature of the heat absorber or the object cooled by the heat absorber
  • the valve device for the temperature controlled object is controlled based on the temperature of the heat exchanger for the temperature controlled object or the object cooled by the heat exchanger.
  • a vehicle air conditioner includes a radiator as another indoor heat exchanger for radiating the refrigerant to heat the air supplied to the passenger compartment in each of the above inventions.
  • the second operation mode to be executed is a heating mode in which the refrigerant discharged from the compressor is radiated by the radiator, the radiated refrigerant is decompressed, and the heat is absorbed by the outdoor heat exchanger, and the second operation mode is discharged from the compressor.
  • the refrigerant is radiated by the radiator, the decompressed refrigerant is decompressed, and the dehumidifying mode in which the heat is absorbed by the heat absorber, and the refrigerant discharged from the compressor is radiated by the outdoor heat exchanger, and the refrigerant is radiated.
  • the cooling mode to absorb heat in the heat absorber one of the defrosting mode to defrost the outdoor heat exchanger by radiating the refrigerant discharged from the compressor in the outdoor heat exchanger, Alternatively, it is characterized by a combination thereof or all of them.
  • the device temperature adjusting device is a heat exchanger for temperature-controlled object for exchanging heat between a refrigerant and a heat medium, and for this temperature-controlled object. It is characterized by having a circulation device for circulating the heat medium between the heat exchanger and the temperature-controlled object.
  • a vehicle air conditioner is the vehicle temperature control apparatus according to any of the first to third aspects, wherein the device temperature adjustment device includes a heating device for heating an object to be temperature-controlled, and the control device includes the first device.
  • the operation mode includes a temperature-controlled object heating mode for heating the temperature-controlled object by the heating device, and the information required for temperature control of the temperature-controlled object includes the operating state of the heating device.
  • a compressor for compressing the refrigerant an indoor heat exchanger for exchanging heat between the air supplied to the passenger compartment and the refrigerant, an outdoor heat exchanger provided outside the passenger compartment, and a control
  • An air conditioner for a vehicle which is equipped with a device to air-condition the interior of a vehicle, is provided with a device temperature adjusting device for adjusting the temperature of an object to be temperature-controlled mounted on a vehicle, and the control device controls the temperature by the device temperature adjusting device.
  • the temperature control Since the execution of the first operation mode is prohibited and the execution of the second operation mode is permitted, even when an abnormality related to the information necessary for temperature control of the temperature control target occurs, the temperature control is performed.
  • the temperature control of the target can be stopped and the air conditioning in the passenger compartment can be continued, so that the comfort and safety of the occupant can be secured.
  • the information necessary for temperature control of the temperature controlled object includes the temperature of the heat medium for controlling the temperature controlled object, the temperature of the temperature controlled object, and the heat
  • the refrigerant is flowing in the operating state of the circulation device for circulating the medium to the temperature-controlled object and the heat exchanger for the temperature-controlled object for cooling the temperature-controlled object, the indoor heat exchanger
  • the operating state of the valve device for the indoor heat exchanger for controlling the flow of the refrigerant, the operating state of the valve device for the temperature controlled object for controlling the flow of the refrigerant to the heat exchanger for the temperature controlled object, and Any of the temperature control requests of the temperature control target, a combination thereof, or all of them can be considered.
  • a compressor for compressing the refrigerant an indoor heat exchanger for exchanging heat between the air supplied to the passenger compartment and the refrigerant, an outdoor heat exchanger provided outside the passenger compartment, and a control
  • An air conditioner for a vehicle which is equipped with a device to air-condition the interior of a vehicle, is provided with a device temperature adjusting device for adjusting the temperature of an object to be temperature-controlled mounted on a vehicle, and the control device controls the temperature by the device temperature adjusting device. It has a first operation mode in which the temperature control of the temperature control target is performed and a second operation mode in which the temperature control of the temperature control target is not performed.
  • the indoor heat exchanger is used as a heat absorber for absorbing the refrigerant to cool the air to be supplied to the vehicle interior, and the device temperature adjusting device absorbs the refrigerant to control the temperature to be controlled.
  • the first operation mode executed by the control device is such that the heat exchanger for the temperature-controlled object for cooling the refrigerant is discharged, and the refrigerant discharged from the compressor is radiated by the outdoor heat exchanger, and the heat is radiated.
  • the heat sink and the heat exchanger for temperature control target heat absorption, and the cooling mode for the temperature control target, and the refrigerant discharged from the compressor is radiated by the outdoor heat exchanger and radiated.
  • the temperature controlled cooling (single) mode of absorbing heat in the temperature controlled heat exchanger or by including both, air conditioning of the vehicle interior and It becomes possible to cool the temperature-controlled object without any trouble.
  • an indoor heat exchanger valve device for controlling the flow of the refrigerant to the heat absorber, and an object for temperature adjustment.
  • a temperature controlled valve device for controlling the flow of the refrigerant to the heat exchanger is installed, and the air conditioning + controlled temperature cooling mode opens the indoor heat exchanger valve device and is cooled by the heat absorber or it.
  • the speed of the compressor is controlled based on the temperature of the target to be controlled, and the air conditioner that controls the opening and closing of the temperature controlled target heat exchanger or the temperature of the target controlled valve device is controlled (priority ) + Temperature control target cooling mode, the temperature control target valve device is opened, and the number of revolutions of the compressor is controlled based on the temperature of the temperature control target heat exchanger or the temperature of the target cooled by the heat control target heat absorption. If the temperature control target cooling (priority) that controls the opening / closing of the valve device for the indoor heat exchanger based on the temperature of the device or the object to be cooled thereby + priority mode is included, the vehicle interior can be cooled according to the situation. It becomes possible to appropriately cool the temperature-controlled object.
  • a radiator as another indoor heat exchanger for radiating the refrigerant to heat the air supplied to the vehicle interior is provided, and the second operation mode executed by the control device is set.
  • a heating mode in which the refrigerant discharged from the compressor is radiated by the radiator, the radiated refrigerant is decompressed, and the heat is absorbed by the outdoor heat exchanger, and the refrigerant discharged from the compressor is radiated by the radiator.
  • the dehumidifying mode in which the heat is absorbed by the heat absorber, and the refrigerant discharged from the compressor is dissipated by the outdoor heat exchanger, and the heat-dissipated refrigerant is depressurized and then transferred to the heat absorber.
  • the equipment temperature control apparatus is a heat exchanger for temperature control for exchanging heat between a refrigerant and a heat medium, and the heat exchanger for temperature control and the temperature control target.
  • the equipment temperature adjusting device as in the invention of claim 9 includes a heating device for heating the temperature-controlled object, and the control device sets the first operation mode as If the heating device has a temperature-controlled target heating mode for heating the temperature-controlled target and the information required for temperature control of the temperature-controlled target includes the operating state of the heating device, This makes it possible to heat the temperature control target and, even when an abnormality occurs in the operating state of the heating device, it is possible to continue air conditioning in the vehicle interior without any trouble.
  • FIG. 4 It is a block diagram of the air conditioning apparatus for vehicles explaining the air conditioning (priority) + battery cooling mode and battery cooling (priority) + air conditioning mode by the heat pump controller of the control apparatus of FIG. It is a block diagram of the vehicle air conditioning apparatus explaining the battery cooling (single) mode by the heat pump controller of the control apparatus of FIG. It is a block diagram of the air conditioning apparatus for vehicles explaining the defrost mode by the heat pump controller of the control apparatus of FIG. It is a control block diagram regarding compressor control of the heat pump controller of the control device of FIG. FIG. 4 is another control block diagram related to compressor control of the heat pump controller of the control device in FIG. 2.
  • FIG. 7 is yet another control block diagram related to compressor control of the heat pump controller of the control device in FIG. 2. It is a block diagram explaining control of the solenoid valve 35 in battery cooling (priority) + air conditioning mode of the heat pump controller of the control apparatus of FIG. It is a figure explaining the control information input into the heat pump controller of the control apparatus of FIG. 2, and execution propriety of each operation mode.
  • FIG. 1 shows a configuration diagram of a vehicle air conditioner 1 of an embodiment of the present invention.
  • a vehicle of an embodiment to which the present invention is applied is an electric vehicle (EV) in which an engine (internal combustion engine) is not mounted, and electric power charged in a battery 55 mounted in the vehicle is used as a traveling motor (electric motor). (Not shown) to drive and run, and the compressor 2 of the vehicle air conditioner 1 of the present invention, which will be described later, is also driven by the electric power supplied from the battery 55. ..
  • EV electric vehicle
  • an engine internal combustion engine
  • electric motor traveling motor
  • the vehicle air conditioner 1 of the embodiment is a heating mode, a dehumidification heating mode, a dehumidification cooling mode, a cooling mode, and a defrosting mode in a heat pump operation using the refrigerant circuit R in an electric vehicle that cannot be heated by engine waste heat.
  • the air conditioning (priority) + battery cooling mode, the battery cooling (priority) + air conditioning mode, and the battery cooling (single) mode are switched and executed to perform air conditioning in the vehicle compartment and temperature control of the battery 55. It is a thing.
  • the present invention is effective not only for electric vehicles but also for so-called hybrid vehicles that use an engine and a running motor.
  • the vehicle to which the vehicle air conditioner 1 of the embodiment is applied is one in which the battery 55 can be charged from an external charger (a quick charger or a normal charger).
  • the battery 55, the traveling motor, the inverter controlling the same, and the like described above are the objects of temperature adjustment mounted on the vehicle in the present invention, but in the following embodiments, the battery 55 will be taken as an example for description.
  • the vehicle air conditioner 1 of the embodiment is for performing air conditioning (heating, cooling, dehumidification, and ventilation) of a vehicle interior of an electric vehicle, and an electric compressor 2 for compressing a refrigerant and an interior of the vehicle interior.
  • an outdoor expansion valve 6 consisting of a motor-operated valve (electronic expansion valve) for decompressing and expanding the refrigerant during heating, and as a radiator for radiating the refrigerant during cooling
  • An outdoor heat exchanger 7 that functions and performs heat exchange between the refrigerant and the outside air so as to function as an evaporator that absorbs the refrigerant (absorbs heat into the refrigerant) during heating, and a mechanical expansion valve that decompresses and expands the refrigerant.
  • an indoor expansion valve 8 made up of a heat exchanger as an indoor heat exchanger that is provided in the air flow passage 3 to evaporate the refrigerant during cooling and dehumidification to absorb the heat from the inside and outside of the vehicle (the refrigerant absorbs heat).
  • the accumulator 12 and the like are sequentially connected by a refrigerant pipe 13 to form a refrigerant circuit R.
  • the outdoor expansion valve 6 decompresses and expands the refrigerant flowing out of the radiator 4 and flowing into the outdoor heat exchanger 7, and can be fully closed. Further, in the embodiment, the indoor expansion valve 8 using the mechanical expansion valve decompresses and expands the refrigerant flowing into the heat absorber 9, and adjusts the degree of superheat of the refrigerant in the heat absorber 9.
  • the outdoor heat exchanger 7 is provided with an outdoor blower 15.
  • the outdoor blower 15 exchanges heat between the outdoor air and the refrigerant by forcibly ventilating the outdoor air through the outdoor heat exchanger 7, whereby the outdoor air is discharged while the vehicle is stopped (that is, the vehicle speed is 0 km / h).
  • the heat exchanger 7 is configured to ventilate outside air.
  • the outdoor heat exchanger 7 has a receiver dryer section 14 and a supercooling section 16 sequentially on the downstream side of the refrigerant, and the refrigerant pipe 13A on the refrigerant outlet side of the outdoor heat exchanger 7 is used when flowing the refrigerant to the heat absorber 9.
  • the refrigerant pipe 13B on the outlet side of the subcooling unit 16 is connected to the receiver dryer unit 14 via an electromagnetic valve 17 (for cooling) as an open / close valve, and the check valve 18, the indoor expansion valve 8, and the indoor It is connected to the refrigerant inlet side of the heat absorber 9 through a solenoid valve 35 (for cabin) as a heat exchanger valve device (open / close valve) in order.
  • the receiver dryer unit 14 and the supercooling unit 16 structurally form a part of the outdoor heat exchanger 7.
  • the check valve 18 has the forward direction of the indoor expansion valve 8.
  • the refrigerant pipe 13A that has exited from the outdoor heat exchanger 7 is branched into a refrigerant pipe 13D, and this branched refrigerant pipe 13D is passed through a solenoid valve 21 (for heating) that is opened and closed during heating. It is connected to the refrigerant pipe 13C on the refrigerant outlet side of the heat absorber 9 for communication.
  • the refrigerant pipe 13C is connected to the inlet side of the accumulator 12, and the outlet side of the accumulator 12 is connected to the refrigerant suction side refrigerant pipe 13K of the compressor 2.
  • a strainer 19 is connected to the refrigerant pipe 13E on the refrigerant outlet side of the radiator 4, and the refrigerant pipe 13E is connected to the refrigerant pipes 13J and 13F before the outdoor expansion valve 6 (refrigerant upstream side).
  • One of the branched and branched refrigerant pipes 13J is connected to the refrigerant inlet side of the outdoor heat exchanger 7 via the outdoor expansion valve 6.
  • the other branched refrigerant pipe 13F is connected to the refrigerant downstream side of the check valve 18 and the refrigerant upstream side of the indoor expansion valve 8 via an electromagnetic valve 22 (for dehumidification) as an opening / closing valve that is opened during dehumidification. It is communicatively connected to the located refrigerant pipe 13B.
  • the refrigerant pipe 13F is connected in parallel to the series circuit of the outdoor expansion valve 6, the outdoor heat exchanger 7 and the check valve 18, and the outdoor expansion valve 6, the outdoor heat exchanger 7 and the check valve are connected. It becomes a bypass circuit that bypasses 18. Further, a solenoid valve 20 as an opening / closing valve for bypass is connected in parallel to the outdoor expansion valve 6.
  • an intake switching damper 26 is provided at 25 for switching the air introduced into the air flow passage 3 between the inside air (inside air circulation) which is the air inside the vehicle interior and the outside air (outside air introduction) which is the air outside the vehicle interior.
  • an indoor blower (blower fan) 27 for feeding the introduced inside air or outside air to the air flow passage 3 is provided.
  • the intake switching damper 26 of the embodiment opens and closes the outside air intake port and the inside air intake port of the intake port 25 at an arbitrary ratio to remove the air (outside air and inside air) flowing into the heat absorber 9 of the air flow passage 3. It is configured so that the ratio of inside air can be adjusted between 0% and 100% (the ratio of outside air can also be adjusted between 100% and 0%).
  • an auxiliary heater 23 as an auxiliary heating device including a PTC heater (electric heater) is provided in the embodiment, and passes through the radiator 4. It is possible to heat the air supplied to the passenger compartment. Further, in the air flow passage 3 on the air upstream side of the radiator 4, the air (inside air or outside air) flowing into the air flow passage 3 and passing through the heat absorber 9 is radiated. An air mix damper 28 that adjusts the ratio of ventilation to the device 4 and the auxiliary heater 23 is provided.
  • the vehicle air conditioner 1 includes an equipment temperature adjusting device 61 for adjusting the temperature of the battery 55 by circulating a heat medium in the battery 55 (object to be temperature adjusted).
  • the device temperature adjusting apparatus 61 of the embodiment circulates the heat medium between the refrigerant-heat medium heat exchanger 64 and the battery 55, which is a heat exchanger for the temperature-controlled object.
  • a circulation pump 62 as a circulation device for this purpose and a heat medium heater 63 as a heating device are provided, and these and the battery 55 are annularly connected by a heat medium pipe 66.
  • the inlet of the heat medium passage 64A of the refrigerant-heat medium heat exchanger 64 is connected to the discharge side of the circulation pump 62, and the outlet of this heat medium passage 64A is connected to the inlet of the heat medium heater 63.
  • the outlet of the heat medium heater 63 is connected to the inlet of the battery 55, and the outlet of the battery 55 is connected to the suction side of the circulation pump 62.
  • the heat medium used in the device temperature adjusting device 61 for example, water, a refrigerant such as HFO-1234yf, a liquid such as coolant, or a gas such as air can be adopted.
  • water is used as the heat medium.
  • the heat medium heater 63 is composed of an electric heater such as a PTC heater. Further, it is assumed that, for example, a jacket structure is provided around the battery 55 so that a heat medium can flow in a heat exchange relationship with the battery 55.
  • the heat medium discharged from the circulation pump 62 flows into the heat medium flow passage 64A of the refrigerant-heat medium heat exchanger 64.
  • the heat medium exiting the heat medium flow passage 64A of the refrigerant-heat medium heat exchanger 64 reaches the heat medium heating heater 63, and if the heat medium heating heater 63 is generating heat, the heat medium heating heater 63 heats the heat medium heating heater 63 and then the battery. 55, where the heat medium exchanges heat with the battery 55.
  • the heat medium that has exchanged heat with the battery 55 is sucked into the circulation pump 62 and circulated in the heat medium pipe 66.
  • a branch pipe 67 as a branch circuit is provided in the refrigerant pipe 13B located on the refrigerant downstream side of the connecting portion between the refrigerant pipe 13F and the refrigerant pipe 13B of the refrigerant circuit R and on the refrigerant upstream side of the indoor expansion valve 8.
  • auxiliary expansion valve 68 which is a mechanical expansion valve in the embodiment, and a solenoid valve (for chiller) 69 as a valve device (open / close valve) for temperature control are sequentially provided in the branch pipe 67.
  • the auxiliary expansion valve 68 decompresses and expands the refrigerant flowing into a later-described refrigerant passage 64B of the refrigerant-heat medium heat exchanger 64, and adjusts the degree of superheat of the refrigerant in the refrigerant passage 64B of the refrigerant-heat medium heat exchanger 64. To do.
  • the other end of the branch pipe 67 is connected to the refrigerant flow passage 64B of the refrigerant-heat medium heat exchanger 64, and one end of the refrigerant pipe 71 is connected to the outlet of the refrigerant flow passage 64B.
  • the other end is connected to a refrigerant pipe 13C on the refrigerant upstream side (refrigerant upstream side of the accumulator 12) from the confluence with the refrigerant pipe 13D.
  • the auxiliary expansion valve 68, the electromagnetic valve 69, the refrigerant flow path 64B of the refrigerant-heat medium heat exchanger 64, and the like also form a part of the refrigerant circuit R and, at the same time, a part of the device temperature adjusting device 61. It will be.
  • the solenoid valve 69 When the solenoid valve 69 is open, the refrigerant (a part or all of the refrigerant) discharged from the outdoor heat exchanger 7 flows into the branch pipe 67, the pressure is reduced by the auxiliary expansion valve 68, and then the refrigerant is passed through the solenoid valve 69. -The refrigerant flows into the refrigerant channel 64B of the heat medium heat exchanger 64 and evaporates there. The refrigerant absorbs heat from the heat medium flowing through the heat medium passage 64A while flowing through the refrigerant passage 64B, and then is sucked into the compressor 2 through the refrigerant pipe 13K through the branch pipe 71, the refrigerant pipe 13C, and the accumulator 12.
  • FIG. 2 shows a block diagram of the control device 11 of the vehicle air conditioner 1 of the embodiment.
  • the control device 11 includes an air conditioning controller 45 and a heat pump controller 32, each of which is composed of a microcomputer, which is an example of a computer including a processor, and these are a CAN (Controller Area Network) and a LIN (Local Interconnect Network). Is connected to the vehicle communication bus 65 that constitutes the. Further, the compressor 2 and the auxiliary heater 23, the circulation pump 62 and the heat medium heating heater 63 are also connected to the vehicle communication bus 65, and the air conditioning controller 45, the heat pump controller 32, the compressor 2, the auxiliary heater 23, the circulation pump 62 and the heat generator.
  • the medium heater 64 is configured to send and receive data via the vehicle communication bus 65.
  • the vehicle communication bus 65 includes a vehicle controller 72 (ECU) that controls the entire vehicle including traveling, a battery controller (BMS: Battery Management System) 73 that controls the charging and discharging of the battery 55, and a GPS navigation device 74.
  • the vehicle controller 72, the battery controller 73, and the GPS navigation device 74 are also configured by a microcomputer that is an example of a computer including a processor.
  • the air conditioning controller 45 and the heat pump controller 32 that configure the control device 11 connect the vehicle communication bus 65 to each other. Information (data) is transmitted and received to and from the vehicle controller 72, the battery controller 73, and the GPS navigation device 74 via the above.
  • the air conditioning controller 45 is a higher-level controller that controls the vehicle interior air conditioning.
  • the inputs of the air conditioning controller 45 are an outside air temperature sensor 33 that detects the outside air temperature Tam of the vehicle and an outside air humidity that detects outside air humidity.
  • the sensor 34, the HVAC suction temperature sensor 36 that detects the temperature of the air that is sucked into the air flow passage 3 from the suction port 25 and flows into the heat absorber 9, and the inside air temperature sensor 37 that detects the temperature of the air (inside air) in the vehicle compartment.
  • An inside air humidity sensor 38 for detecting the humidity of the air in the vehicle compartment
  • an indoor CO 2 concentration sensor 39 for detecting the carbon dioxide concentration in the vehicle compartment
  • an outlet temperature sensor 41 for detecting the temperature of the air blown into the vehicle compartment.
  • An air conditioning operation unit 53 for performing air conditioning setting operations in the vehicle interior such as mode switching and information display is connected.
  • 53A is a display as a display output device provided in the air conditioning operation unit 53.
  • the output of the air conditioning controller 45 includes an outdoor blower 15, an indoor blower (blower fan) 27, a suction switching damper 26, an air mix damper 28, an outlet switching damper 31, a solenoid valve 35 (for a cabin) and An electromagnetic valve 69 (for chiller) is connected and controlled by the air conditioning controller 45.
  • the heat pump controller 32 is a controller that mainly controls the refrigerant circuit R, and the heat pump controller 32 has an input that releases heat to detect the refrigerant inlet temperature Tcxin of the radiator 4 (which is also the refrigerant temperature discharged from the compressor 2).
  • Radiator pressure sensor 47 for detecting the refrigerant pressure (pressure of radiator 4; radiator pressure Pci), and temperature of heat absorber 9 (temperature of heat absorber 9 itself, or air immediately after being cooled by heat absorber 9) Temperature of (cooling target): Heat absorber temperature sensor 48 for detecting heat absorber temperature Te, and refrigerant temperature at the outlet of the outdoor heat exchanger 7 (refrigerant evaporation temperature of the outdoor heat exchanger 7: outdoor heat exchanger temperature) Outputs of the outdoor heat exchanger temperature sensor 49 for detecting TXO) and the auxiliary heater temperature sensors 50A (driver side) and 50B (passenger side) for detecting the temperature of the auxiliary heater 23 are connected.
  • the output of the heat pump controller 32 includes the outdoor expansion valve 6, the solenoid valve 22 (for dehumidification), the solenoid valve 17 (for cooling), the solenoid valve 21 (for heating), and the solenoid valve 20 (for bypass). Are connected and they are controlled by the heat pump controller 32.
  • Each of the compressor 2, the auxiliary heater 23, the circulation pump 62 and the heat medium heating heater 63 has a built-in controller.
  • the controllers of the compressor 2 and the auxiliary heater 23 are connected to the heat pump controller 32 via the vehicle communication bus 65. Data is transmitted / received and controlled by the heat pump controller 32.
  • controllers of the circulation pump 62 and the heat medium heating heater 63 transmit and receive data to and from the air conditioning controller 45, and further exchange the data between the air conditioning controller 45 and the heat pump controller 32.
  • the heat medium heater 63 is also controlled by the heat pump controller 32.
  • the circulation pump 62 and the heat medium heater 63 that constitute the device temperature adjusting device 61 may be controlled by the battery controller 73. Further, in the battery controller 73, the temperature of the heat medium on the outlet side of the heat medium flow path 64A of the refrigerant-heat medium heat exchanger 64 of the device temperature adjusting device 61 (heat medium temperature Tw: heat exchanger for temperature controlled).
  • the output of the heat medium temperature sensor 76 that detects the temperature of the object to be cooled by the battery is connected to the output of the battery temperature sensor 77 that detects the temperature of the battery 55 (the temperature of the battery 55 itself: the battery temperature Tcell).
  • the remaining amount of the battery 55 (the amount of stored electricity), the information regarding the charging of the battery 55 (the information that the battery is being charged, the charging completion time, the remaining charging time, etc.), the heat medium temperature Tw, and the battery temperature Tcell are It is transmitted from the battery controller 73 to the air conditioning controller 45 and the vehicle controller 72 via the vehicle communication bus 65.
  • the information regarding the charging completion time and the remaining charging time at the time of charging the battery 55 is information supplied from an external charger such as a quick charger described later.
  • the heat pump controller 32 and the air conditioning controller 45 send and receive data to and from each other via the vehicle communication bus 65, and control each device based on the output of each sensor and the setting input by the air conditioning operation unit 53.
  • Air volume Ga of air flowing into the air flow passage 3 and flowing in the air flow passage 3 (calculated by the air conditioning controller 45), air flow rate SW by the air mix damper 28 (calculated by the air conditioning controller 45), voltage of the indoor blower 27 (BLV), the information from the battery controller 73, the information from the GPS navigation device 74, and the output of the air conditioning operation unit 53 are transmitted from the air conditioning controller 45 to the heat pump controller 32 via the vehicle communication bus 65, and the heat pump controller 32 controls the heat pump controller 32. It is configured to be used for control.
  • the heat pump controller 32 also transmits data (information) regarding the control of the refrigerant circuit R to the air conditioning controller 45 via the vehicle communication bus 65.
  • a battery cooling request / battery heating request (including disconnection / short circuit abnormality) as a temperature control request for a temperature controlled object described later, a solenoid valve (for cabin) 35, and a solenoid valve (for chiller).
  • operation information including disconnection / short circuit abnormality
  • information on the heat medium temperature Tw and battery temperature Tcell from the battery controller 73 (disconnection / short circuit abnormality, heat medium temperature sensor 76 and battery temperature sensor 77 attachment) (Including abnormality) and operation information of circulation pump 62 and heat medium heater 63 (including abnormality of disconnection / short circuit) are transmitted to heat pump controller 32. Then, these are information necessary for temperature control of the battery (object to be temperature controlled) input to the heat pump controller 32, and hereinafter, these are referred to as battery temperature control information.
  • HP control information the operation information of the devices other than the compressor 2, the blowers 15, 27, the dampers 26, 28, 31, the auxiliary heater 23, and the sensor information other than the above, such as temperature, humidity, pressure, and carbon dioxide concentration, , which is information necessary for air conditioning in the vehicle compartment, which is input to the heat pump controller 32, and is hereinafter referred to as HP control information.
  • the control device 11 controls the heating mode, the dehumidifying heating mode, the dehumidifying cooling mode, the cooling mode, and the air conditioning operation of the air conditioning (priority) + battery cooling mode, and the battery cooling.
  • Each battery cooling operation of (priority) + air conditioning mode and battery cooling (single) mode and defrosting mode are switched and executed. These are shown in FIG.
  • the battery 55 is not charged in the embodiment, and the ignition of the vehicle is performed. This is executed when (IGN) is turned on and the air conditioning switch of the air conditioning operation unit 53 is turned on. However, it is executed even when the ignition is OFF during remote operation (pre-air conditioning, etc.). Even when the battery 55 is being charged, there is no battery cooling request, and the process is executed when the air conditioning switch is ON.
  • each battery cooling operation in the battery cooling (priority) + air conditioning mode and the battery cooling (single) mode is executed, for example, when the plug of the quick charger (external power source) is connected and the battery 55 is being charged. It is something.
  • the battery cooling (single) mode is executed when the air conditioning switch is OFF and there is a battery cooling request (during traveling at a high outside air temperature, etc.) other than during charging of the battery 55.
  • the heat pump controller 32 operates the circulation pump 62 of the device temperature adjusting device 61 when the ignition is turned on, or when the battery 55 is being charged even when the ignition is turned off. It is assumed that the heat medium is circulated in the heat medium pipe 66 as indicated by broken lines in FIGS. Further, although not shown in FIG. 3, the heat pump controller 32 of the embodiment also has a battery heating mode (also an operation mode) in which the heat medium heating heater 63 of the device temperature adjusting device 61 is heated to heat the battery 55. Run.
  • the air conditioning (priority) + battery cooling mode, the battery cooling (priority) + air conditioning mode, the battery cooling (single) mode, and the battery heating mode control the temperature of the battery 55 (object to be temperature controlled) in the present invention.
  • the first operation mode is set, and the heating mode, the dehumidification heating mode, the dehumidification cooling mode, the cooling mode, and the defrosting mode are the second operation modes in the present invention in which the temperature of the battery 55 is not adjusted.
  • the air conditioning (priority) + battery cooling mode and the battery cooling (priority) + air conditioning mode are the air conditioning + cooling subject cooling mode in the present invention
  • the battery cooling (single) mode is the heating in the present invention.
  • the target cooling (independent) mode is set.
  • the air conditioning (priority) + battery cooling mode is the air conditioning (priority) + the temperature controlled cooling mode in the present invention
  • the battery cooling (priority) + air conditioning mode is the temperature controlled cooling (priority) + the air conditioning in the present invention.
  • the battery heating mode is the temperature controlled target heating mode in the present invention.
  • the dehumidifying heating mode and the dehumidifying cooling mode are the dehumidifying modes in the present invention.
  • FIG. 4 shows how the refrigerant flows in the refrigerant circuit R in the heating mode (solid arrow).
  • the heat pump controller 32 opens the solenoid valve 21 and the solenoid valve 17 , The solenoid valve 20, the solenoid valve 22, the solenoid valve 35, and the solenoid valve 69 are closed. Then, the compressor 2 and the blowers 15 and 27 are operated, and the air mix damper 28 adjusts the ratio of the air blown from the indoor blower 27 to the radiator 4 and the auxiliary heater 23.
  • the high-temperature and high-pressure gas refrigerant discharged from the compressor 2 flows into the radiator 4. Since the air in the air flow passage 3 is ventilated through the radiator 4, the air in the air flow passage 3 is heated by exchanging heat with the high temperature refrigerant in the radiator 4. On the other hand, the refrigerant in the radiator 4 is cooled by being deprived of heat by the air and condensed and liquefied.
  • the liquefied refrigerant in the radiator 4 exits the radiator 4 and then reaches the outdoor expansion valve 6 via the refrigerant pipes 13E and 13J.
  • the refrigerant flowing into the outdoor expansion valve 6 is decompressed there, and then flows into the outdoor heat exchanger 7.
  • the refrigerant that has flowed into the outdoor heat exchanger 7 evaporates and pumps up heat from the outside air ventilated by traveling or by the outdoor blower 15 (heat absorption). That is, the refrigerant circuit R serves as a heat pump.
  • the low-temperature refrigerant that has exited the outdoor heat exchanger 7 reaches the refrigerant pipe 13C via the refrigerant pipes 13A and 13D, the solenoid valve 21, and further enters the accumulator 12 via this refrigerant pipe 13C, where it is gas-liquid separated.
  • the circulation in which the gas refrigerant is sucked into the compressor 2 from the refrigerant pipe 13K is repeated.
  • the air heated by the radiator 4 is blown out from the air outlet 29, so that the interior of the vehicle is heated.
  • the heat pump controller 32 calculates a target heater temperature TCO (of the radiator 4) calculated from a target outlet temperature TAO, which will be described later, which is a target temperature of the air blown into the vehicle interior (a target value of the temperature of the air blown into the vehicle interior).
  • the target radiator pressure PCO is calculated from the target temperature), and the rotational speed of the compressor 2 is based on the target radiator pressure PCO and the radiator pressure Pci (high pressure of the refrigerant circuit R) detected by the radiator pressure sensor 47.
  • the heat pump controller 32 supplements this shortage with the heat generated by the auxiliary heater 23. As a result, the vehicle interior is heated without any trouble even when the outside temperature is low.
  • FIG. 5 shows how the refrigerant flows in the refrigerant circuit R in the dehumidifying and heating mode (solid arrow).
  • the heat pump controller 32 opens the solenoid valve 21, the solenoid valve 22, and the solenoid valve 35, and closes the solenoid valve 17, the solenoid valve 20, and the solenoid valve 69.
  • the compressor 2 and the blowers 15 and 27 are operated, and the air mix damper 28 adjusts the ratio of the air blown from the indoor blower 27 to the radiator 4 and the auxiliary heater 23.
  • the high-temperature and high-pressure gas refrigerant discharged from the compressor 2 flows into the radiator 4. Since the air in the air flow passage 3 is ventilated through the radiator 4, the air in the air flow passage 3 is heated by exchanging heat with the high temperature refrigerant in the radiator 4. On the other hand, the refrigerant in the radiator 4 is cooled by being deprived of heat by the air and condensed and liquefied.
  • the refrigerant liquefied in the radiator 4 exits the radiator 4, a part of it enters the refrigerant pipe 13J through the refrigerant pipe 13E and reaches the outdoor expansion valve 6.
  • the refrigerant flowing into the outdoor expansion valve 6 is decompressed there, and then flows into the outdoor heat exchanger 7.
  • the refrigerant that has flowed into the outdoor heat exchanger 7 evaporates and pumps up heat from the outside air ventilated by traveling or by the outdoor blower 15 (heat absorption).
  • the low-temperature refrigerant leaving the outdoor heat exchanger 7 reaches the refrigerant pipe 13C via the refrigerant pipes 13A and 13D and the solenoid valve 21, enters the accumulator 12 via the refrigerant pipe 13C, and is separated into gas and liquid there. After that, the circulation in which the gas refrigerant is sucked into the compressor 2 from the refrigerant pipe 13K is repeated.
  • the rest of the condensed refrigerant flowing through the radiator pipe 13E via the radiator 4 is diverted, and the diverted refrigerant flows into the refrigerant pipe 13F via the solenoid valve 22 and reaches the refrigerant pipe 13B.
  • the refrigerant reaches the indoor expansion valve 8, is decompressed by the indoor expansion valve 8, then flows into the heat absorber 9 via the electromagnetic valve 35, and is evaporated.
  • the water in the air blown out from the indoor blower 27 is condensed and adheres to the heat absorber 9 due to the heat absorbing action of the refrigerant generated in the heat absorber 9, so that the air is cooled and dehumidified.
  • the refrigerant evaporated in the heat absorber 9 flows out into the refrigerant pipe 13C, joins the refrigerant from the refrigerant pipe 13D (refrigerant from the outdoor heat exchanger 7), and then is sucked into the compressor 2 from the refrigerant pipe 13K via the accumulator 12. Repeat the cycle.
  • the air dehumidified by the heat absorber 9 is reheated in the process of passing through the radiator 4 and the auxiliary heater 23 (when heat is generated), so that dehumidification and heating of the vehicle interior is performed.
  • the heat pump controller 32 rotates the compressor 2 based on the target radiator pressure PCO calculated from the target heater temperature TCO and the radiator pressure Pci (high pressure of the refrigerant circuit R) detected by the radiator pressure sensor 47. Or the rotation speed of the compressor 2 based on the temperature of the heat absorber 9 (heat absorber temperature Te) detected by the heat absorber temperature sensor 48 and the target heat absorber temperature TEO which is its target value. .
  • the heat pump controller 32 controls the compressor 2 by selecting whichever of the radiator target pressure Pci and the heat absorber temperature Te, whichever is lower than the target compressor speed obtained from the calculation. Further, the valve opening degree of the outdoor expansion valve 6 is controlled based on the heat absorber temperature Te.
  • the heat pump controller 32 supplements the shortage with the heat generated by the auxiliary heater 23. .. As a result, the vehicle interior is dehumidified and heated even when the outside temperature is low.
  • FIG. 6 shows how the refrigerant flows in the refrigerant circuit R in the dehumidifying and cooling mode (solid arrow).
  • the heat pump controller 32 opens the solenoid valve 17 and the solenoid valve 35, and closes the solenoid valve 20, the solenoid valve 21, the solenoid valve 22, and the solenoid valve 69.
  • the compressor 2 and the blowers 15 and 27 are operated, and the air mix damper 28 adjusts the ratio of the air blown from the indoor blower 27 to the radiator 4 and the auxiliary heater 23.
  • the high-temperature and high-pressure gas refrigerant discharged from the compressor 2 flows into the radiator 4. Since the air in the air flow passage 3 is ventilated through the radiator 4, the air in the air flow passage 3 is heated by exchanging heat with the high temperature refrigerant in the radiator 4. On the other hand, the refrigerant in the radiator 4 is cooled by being deprived of heat by the air, and is condensed and liquefied.
  • the refrigerant exiting the radiator 4 reaches the outdoor expansion valve 6 via the refrigerant pipes 13E and 13J, and then passes through the outdoor expansion valve 6 controlled to open more (a larger valve opening area) than the heating mode or the dehumidifying and heating mode. It flows into the outdoor heat exchanger 7.
  • the refrigerant that has flowed into the outdoor heat exchanger 7 is condensed by being cooled there by traveling or by the outside air ventilated by the outdoor blower 15.
  • the refrigerant discharged from the outdoor heat exchanger 7 enters the refrigerant pipe 13B via the refrigerant pipe 13A, the solenoid valve 17, the receiver dryer unit 14, and the supercooling unit 16, and reaches the indoor expansion valve 8 via the check valve 18.
  • the refrigerant is decompressed by the indoor expansion valve 8, then flows into the heat absorber 9 through the electromagnetic valve 35, and evaporates. Due to the heat absorbing action at this time, moisture in the air blown out from the indoor blower 27 is condensed and attached to the heat absorber 9, and the air is cooled and dehumidified.
  • the refrigerant evaporated in the heat absorber 9 reaches the accumulator 12 via the refrigerant pipe 13C, and is repeatedly sucked into the compressor 2 from the refrigerant pipe 13K via the refrigerant pipe 13K.
  • the air cooled and dehumidified by the heat absorber 9 is reheated (has a lower heating capacity than that during dehumidification heating) in the process of passing through the radiator 4 and the auxiliary heater 23 (when heat is generated). As a result, dehumidification and cooling of the vehicle interior are performed.
  • the heat pump controller 32 absorbs heat based on the temperature of the heat absorber 9 (heat absorber temperature Te) detected by the heat absorber temperature sensor 48 and the target heat absorber temperature TEO which is the target temperature of the heat absorber 9 (target value of the heat absorber temperature Te).
  • the rotation speed of the compressor 2 is controlled so that the device temperature Te becomes the target heat absorber temperature TEO, and the radiator pressure Pci (high pressure of the refrigerant circuit R) detected by the radiator pressure sensor 47 and the target radiator pressure PCO.
  • the valve opening of the outdoor expansion valve 6 is controlled so that the radiator pressure Pci becomes the target radiator pressure PCO. Amount).
  • the heat pump controller 32 supplements the shortage with the heat generated by the auxiliary heater 23. To do. As a result, dehumidifying and cooling are performed without lowering the temperature inside the vehicle compartment too much.
  • FIG. 7 shows how the refrigerant flows in the refrigerant circuit R in the cooling mode (solid arrow).
  • the heat pump controller 32 opens the solenoid valve 17, the solenoid valve 20, and the solenoid valve 35, and closes the solenoid valve 21, the solenoid valve 22, and the solenoid valve 69.
  • the compressor 2 and the blowers 15 and 27 are operated, and the air mix damper 28 adjusts the ratio of the air blown from the indoor blower 27 to the radiator 4 and the auxiliary heater 23.
  • the auxiliary heater 23 is not energized.
  • the high-temperature and high-pressure gas refrigerant discharged from the compressor 2 flows into the radiator 4.
  • the air in the air flow passage 3 is ventilated through the radiator 4, since the proportion thereof is small (because of only reheating (reheating) during cooling), it almost passes through the radiator 4,
  • the discharged refrigerant reaches the refrigerant pipe 13J via the refrigerant pipe 13E.
  • the electromagnetic valve 20 is opened, the refrigerant passes through the electromagnetic valve 20 and flows into the outdoor heat exchanger 7 as it is, and is cooled there by traveling or by the outside air ventilated by the outdoor blower 15 to be condensed and liquefied. To do.
  • the refrigerant discharged from the outdoor heat exchanger 7 enters the refrigerant pipe 13B via the refrigerant pipe 13A, the solenoid valve 17, the receiver dryer unit 14, and the supercooling unit 16, and reaches the indoor expansion valve 8 via the check valve 18.
  • the refrigerant is decompressed by the indoor expansion valve 8, then flows into the heat absorber 9 through the electromagnetic valve 35, and evaporates. Due to the heat absorbing action at this time, the air blown out from the indoor blower 27 and exchanging heat with the heat absorber 9 is cooled.
  • the refrigerant evaporated in the heat absorber 9 reaches the accumulator 12 via the refrigerant pipe 13C, and then is sucked into the compressor 2 via the refrigerant pipe 13K.
  • the air cooled by the heat absorber 9 is blown into the vehicle interior from the air outlet 29, so that the vehicle interior is cooled.
  • the heat pump controller 32 controls the rotation speed of the compressor 2 based on the temperature of the heat absorber 9 (heat absorber temperature Te) detected by the heat absorber temperature sensor 48.
  • Air conditioning (priority) + battery cooling mode first operation mode, air conditioning + temperature controlled cooling mode, air conditioning (priority) + temperature controlled cooling mode
  • the air conditioning (priority) + battery cooling mode will be described with reference to FIG.
  • FIG. 8 shows how the refrigerant flows in the refrigerant circuit R (solid arrow) in the air conditioning (priority) + battery cooling mode.
  • the heat pump controller 32 opens the electromagnetic valve 17, the electromagnetic valve 20, the electromagnetic valve 35, and the electromagnetic valve 69, and closes the electromagnetic valves 21 and 22.
  • the compressor 2 and the blowers 15 and 27 are operated, and the air mix damper 28 adjusts the ratio of the air blown from the indoor blower 27 to the radiator 4 and the auxiliary heater 23.
  • the auxiliary heater 23 is not energized.
  • the heat medium heater 63 is not energized.
  • the high-temperature and high-pressure gas refrigerant discharged from the compressor 2 flows into the radiator 4.
  • the air in the air flow passage 3 is ventilated through the radiator 4, since the proportion thereof is small (because of only reheating (reheating) during cooling), it almost passes through the radiator 4,
  • the discharged refrigerant reaches the refrigerant pipe 13J via the refrigerant pipe 13E.
  • the electromagnetic valve 20 is opened, the refrigerant passes through the electromagnetic valve 20 and flows into the outdoor heat exchanger 7 as it is, and is cooled there by traveling or by the outside air ventilated by the outdoor blower 15 to be condensed and liquefied. To do.
  • the refrigerant exiting the outdoor heat exchanger 7 enters the refrigerant pipe 13B through the refrigerant pipe 13A, the solenoid valve 17, the receiver dryer unit 14, and the supercooling unit 16.
  • the refrigerant flowing into the refrigerant pipe 13B is branched after passing through the check valve 18, and one of the refrigerant flows through the refrigerant pipe 13B as it is to reach the indoor expansion valve 8.
  • the refrigerant flowing into the indoor expansion valve 8 is decompressed there, then flows into the heat absorber 9 through the electromagnetic valve 35, and is evaporated. Due to the heat absorbing action at this time, the air blown out from the indoor blower 27 and exchanging heat with the heat absorber 9 is cooled.
  • the refrigerant evaporated in the heat absorber 9 reaches the accumulator 12 via the refrigerant pipe 13C, and then is sucked into the compressor 2 via the refrigerant pipe 13K.
  • the air cooled by the heat absorber 9 is blown into the vehicle interior from the air outlet 29, so that the vehicle interior is cooled.
  • the rest of the refrigerant that has passed through the check valve 18 is split, flows into the branch pipe 67, and reaches the auxiliary expansion valve 68.
  • the refrigerant is decompressed, then flows into the refrigerant channel 64B of the refrigerant-heat medium heat exchanger 64 via the electromagnetic valve 69, and evaporates there. At this time, it exerts an endothermic effect.
  • the refrigerant evaporated in the refrigerant passage 64B repeats the circulation in which the refrigerant is sucked into the compressor 2 from the refrigerant pipe 13K through the refrigerant pipe 71, the refrigerant pipe 13C and the accumulator 12 in sequence (shown by a solid arrow in FIG. 8).
  • the heat medium discharged from the circulation pump 62 reaches the heat medium flow passage 64A of the refrigerant-heat medium heat exchanger 64 in the heat medium pipe 66, and the refrigerant flow passage there.
  • the heat medium is cooled by exchanging heat with the refrigerant that evaporates in 64B and absorbing heat.
  • the heat medium exiting the heat medium flow path 64A of the refrigerant-heat medium heat exchanger 64 reaches the heat medium heater 63.
  • the heat medium heating heater 63 does not generate heat in this operation mode, the heat medium passes through as it is to the battery 55 and exchanges heat with the battery 55. As a result, the battery 55 is cooled, and the heat medium after cooling the battery 55 is repeatedly sucked into the circulation pump 62 and repeatedly circulated (indicated by a dashed arrow in FIG. 8).
  • the heat pump controller 32 maintains the electromagnetic valve 35 in the open state, and will be described later based on the temperature of the heat absorber 9 (heat absorber temperature Te) detected by the heat absorber temperature sensor 48.
  • the rotation speed of the compressor 2 is controlled as shown in FIG.
  • the solenoid valve 69 is controlled to open and close as follows based on the temperature of the heat medium detected by the heat medium temperature sensor 76 (heat medium temperature Tw: transmitted from the battery controller 73).
  • the heat absorber temperature Te is the temperature of the heat absorber 9 in the embodiment or the temperature of the object (air) cooled by it.
  • the heat medium temperature Tw is adopted as the temperature of the object (heat medium) cooled by the refrigerant-heat medium heat exchanger 64 (heat exchanger for temperature adjustment) in the embodiment, but the temperature adjustment is performed. It is also an index showing the temperature of the target battery 55 (hereinafter the same).
  • FIG. 13 shows a block diagram of opening / closing control of the solenoid valve 69 in this air conditioning (priority) + battery cooling mode.
  • the heat medium temperature Tw detected by the heat medium temperature sensor 76 and a predetermined target heat medium temperature TWO as a target value of the heat medium temperature Tw are input to the temperature controlled target electromagnetic valve control unit 90 of the heat pump controller 32. It Then, the temperature controlled target electromagnetic valve control unit 90 sets the upper limit value TwUL and the lower limit value TwLL with a predetermined temperature difference above and below the target heat medium temperature TWO, and from the state where the electromagnetic valve 69 is closed.
  • the solenoid valve 69 is opened (instruction to open the solenoid valve 69).
  • the refrigerant flows into the refrigerant channel 64B of the refrigerant-heat medium heat exchanger 64, evaporates, and cools the heat medium flowing through the heat medium channel 64A. Therefore, the battery 55 is cooled by the cooled heat medium. To be done.
  • the solenoid valve 69 is closed (instruction to close the solenoid valve 69). After that, the solenoid valve 69 is repeatedly opened and closed as described above to control the heat medium temperature Tw to the target heat medium temperature TWO while giving priority to the cooling in the vehicle compartment, to cool the battery 55.
  • the heat pump controller 32 calculates the above-mentioned target outlet temperature TAO from the following formula (I).
  • the target outlet temperature TAO is a target value of the temperature of the air blown into the vehicle compartment from the outlet 29.
  • TAO (Tset-Tin) ⁇ K + Tbal (f (Tset, SUN, Tam)) .. (I)
  • Tset is the set temperature of the vehicle interior set by the air conditioning operation unit 53
  • Tin is the temperature of the vehicle interior air detected by the inside air temperature sensor 37
  • K is a coefficient
  • Tbal is the set temperature Tset
  • the solar radiation sensor 51 detects the temperature. It is a balance value calculated from the amount of solar radiation SUN and the outside air temperature Tam detected by the outside air temperature sensor 33.
  • the target outlet temperature TAO is higher as the outside air temperature Tam is lower, and is decreased as the outside air temperature Tam is increased.
  • the heat pump controller 32 selects any one of the above air conditioning operations based on the outside air temperature Tam detected by the outside air temperature sensor 33 and the target outlet temperature TAO at the time of startup. Further, after the start-up, each of the air conditioning operations is selected and switched according to changes in operating conditions such as the outside air temperature Tam, the target outlet temperature TAO, and the heat medium temperature Tw, environmental conditions, and setting conditions. For example, the transition from the cooling mode to the air conditioning (priority) + battery cooling mode is executed based on the input of the battery cooling request (temperature control target of the temperature controlled target) from the battery controller 73. In this case, the battery controller 73 outputs a battery cooling request and transmits it to the heat pump controller 32 and the air conditioning controller 45, for example, when the heat medium temperature Tw or the battery temperature Tcell rises above a predetermined value.
  • Battery cooling (priority) + air conditioning mode first operation mode, air conditioning + temperature controlled cooling mode, temperature controlled cooling (priority) + air conditioning mode
  • the operation during charging of the battery 55 will be described. For example, when a plug for charging a quick charger (external power source) is connected and the battery 55 is being charged (these information is transmitted from the battery controller 73), the ignition (IGN) of the vehicle is turned on / off. Regardless, the heat pump controller 32 executes the battery cooling (priority) + air conditioning mode when there is a battery cooling request (a temperature adjustment request for the temperature controlled object) and the air conditioning switch of the air conditioning operation unit 53 is turned on.
  • the flow of the refrigerant in the refrigerant circuit R in the battery cooling (priority) + air conditioning mode is the same as in the air conditioning (priority) + battery cooling mode shown in FIG.
  • the heat pump controller 32 maintains the electromagnetic valve 69 in an open state, and the heat detected by the heat medium temperature sensor 76 (transmitted from the battery controller 73) is detected.
  • the medium temperature Tw Based on the medium temperature Tw, the rotation speed of the compressor 2 is controlled as shown in FIG. 14 described later.
  • the solenoid valve 35 is controlled to open and close as follows based on the temperature of the heat absorber 9 (heat absorber temperature Te) detected by the heat absorber temperature sensor 48.
  • FIG. 15 shows a block diagram of opening / closing control of the solenoid valve 35 in this battery cooling (priority) + air conditioning mode.
  • the heat absorber electromagnetic valve control unit 95 of the heat pump controller 32 is input with the heat absorber temperature Te detected by the heat absorber temperature sensor 48 and a predetermined target heat absorber temperature TEO as a target value of the heat absorber temperature Te. Then, the heat absorber electromagnetic valve control unit 95 sets the upper limit value TeUL and the lower limit value TeLL with a predetermined temperature difference above and below the target heat absorber temperature TEO, and sets the heat absorber temperature from the state in which the solenoid valve 35 is closed.
  • the solenoid valve 35 is closed (instruction to close the solenoid valve 35). Thereafter, such opening / closing of the solenoid valve 35 is repeated to control the heat absorber temperature Te to the target heat absorber temperature TEO while prioritizing the cooling of the battery 55 to cool the vehicle interior.
  • Battery cooling (single) mode first operating mode, temperature controlled cooling (single) mode
  • the heat pump controller 32 executes the battery cooling (single) mode.
  • the air conditioning switch is OFF and there is a battery cooling request (during traveling at a high outside air temperature) other than during charging of the battery 55.
  • FIG. 9 shows how the refrigerant flows in the refrigerant circuit R (solid arrow) in the battery cooling (single) mode.
  • the heat pump controller 32 opens the solenoid valve 17, the solenoid valve 20, and the solenoid valve 69, and closes the solenoid valve 21, the solenoid valve 22, and the solenoid valve 35.
  • the compressor 2 and the outdoor blower 15 are operated.
  • the indoor blower 27 is not operated and the auxiliary heater 23 is not energized. Further, the heat medium heater 63 is not energized in this operation mode.
  • the high-temperature and high-pressure gas refrigerant discharged from the compressor 2 flows into the radiator 4. Since the air in the air flow passage 3 is not ventilated to the radiator 4, it passes only here, and the refrigerant exiting the radiator 4 reaches the refrigerant pipe 13J via the refrigerant pipe 13E. At this time, since the electromagnetic valve 20 is open, the refrigerant passes through the electromagnetic valve 20 and flows into the outdoor heat exchanger 7 as it is, where it is air-cooled by the outside air ventilated by the outdoor blower 15 to be condensed and liquefied.
  • the refrigerant exiting the outdoor heat exchanger 7 enters the refrigerant pipe 13B through the refrigerant pipe 13A, the solenoid valve 17, the receiver dryer unit 14, and the supercooling unit 16. After passing through the check valve 18, all of the refrigerant flowing into the refrigerant pipe 13B flows into the branch pipe 67 and reaches the auxiliary expansion valve 68. Here, the refrigerant is decompressed, then flows into the refrigerant channel 64B of the refrigerant-heat medium heat exchanger 64 via the electromagnetic valve 69, and evaporates there. At this time, it exerts an endothermic effect.
  • the refrigerant evaporated in the refrigerant flow path 64B repeatedly passes through the refrigerant pipe 71, the refrigerant pipe 13C, and the accumulator 12 and is repeatedly sucked into the compressor 2 from the refrigerant pipe 13K (represented by a solid arrow in FIG. 9).
  • the heat medium discharged from the circulation pump 62 reaches the heat medium flow passage 64A of the refrigerant-heat medium heat exchanger 64 in the heat medium pipe 66, and the refrigerant flow passage there.
  • the heat medium is cooled by being absorbed by the refrigerant evaporated in 64B.
  • the heat medium exiting the heat medium flow path 64A of the refrigerant-heat medium heat exchanger 64 reaches the heat medium heater 63.
  • the heat medium heating heater 63 does not generate heat in this operation mode, the heat medium passes through as it is to the battery 55 and exchanges heat with the battery 55. As a result, the battery 55 is cooled, and the heat medium after cooling the battery 55 is repeatedly sucked into the circulation pump 62 and repeatedly circulated (indicated by a dashed arrow in FIG. 9).
  • the heat pump controller 32 cools the battery 55 by controlling the number of revolutions of the compressor 2 based on the heat medium temperature Tw detected by the heat medium temperature sensor 76 as described later.
  • FIG. 10 shows how the refrigerant flows in the refrigerant circuit R in the defrosting mode (solid arrow).
  • the refrigerant evaporates in the outdoor heat exchanger 7 and absorbs heat from the outside air to reach a low temperature, so that the moisture in the outside air adheres to the outdoor heat exchanger 7 as frost.
  • the defrosting mode of the outdoor heat exchanger 7 is executed as follows.
  • the heat pump controller 32 sets the refrigerant circuit R to the heating mode described above, and then fully opens the valve opening degree of the outdoor expansion valve 6. Then, the compressor 2 is operated, the high-temperature refrigerant discharged from the compressor 2 is caused to flow into the outdoor heat exchanger 7 via the radiator 4 and the outdoor expansion valve 6, and is radiated by the outdoor heat exchanger 7. The frost on the outdoor heat exchanger 7 is melted (FIG. 10).
  • the heat pump controller 32 defrosts the outdoor heat exchanger 7 when the outdoor heat exchanger temperature TXO detected by the outdoor heat exchanger temperature sensor 49 becomes higher than a predetermined defrosting end temperature (for example, + 3 ° C.). Is completed and the defrosting mode is terminated.
  • Battery heating mode (10) Battery heating mode (first operation mode, temperature control target heating mode) Further, the heat pump controller 32 executes the battery heating mode when the air conditioning operation is executed or when the battery 55 is charged. In this battery heating mode, the heat pump controller 32 operates the circulation pump 62 to energize the heat medium heating heater 63. The solenoid valve 69 is closed.
  • the heat medium discharged from the circulation pump 62 reaches the heat medium flow passage 64A of the refrigerant-heat medium heat exchanger 64 through the heat medium pipe 66, and passes therethrough to reach the heat medium heater 63.
  • the heat medium heating heater 63 is generating heat, the heat medium is heated by the heat medium heating heater 63 to increase its temperature, and then reaches the battery 55 to exchange heat with the battery 55.
  • the battery 55 is heated, and the heat medium after heating the battery 55 is repeatedly circulated by being sucked into the circulation pump 62.
  • the heat pump controller 32 controls the energization of the heat medium heating heater 63 based on the heat medium temperature Tw detected by the heat medium temperature sensor 76 to set the heat medium temperature Tw to the predetermined target heat medium temperature. Adjust to near TWO and heat battery 55.
  • the heat medium heating heater 63 is energized to generate heat, and is de-energized at the target heat medium temperature TWO. That is, the fact that the heat medium temperature Tw becomes lower than the lower limit value TwLL becomes the battery heating request (temperature control request of the temperature control target) in this case.
  • TGNCh is calculated, and in the dehumidifying cooling mode, the cooling mode, and the air conditioning (priority) + battery cooling mode, based on the heat absorber temperature Te, the target rotation speed of the compressor 2 (compressor target rotation speed) according to the control block diagram of FIG. Calculate TGNCc.
  • the dehumidifying and heating mode the lower direction of the compressor target rotation speed TGNCh and the compressor target rotation speed TGNc is selected.
  • the target rotation speed of the compressor 2 (compressor target rotation speed) TGNCw is calculated based on the heat medium temperature Tw by the control block diagram of FIG. To do.
  • FIG. 11 is a control block diagram of the heat pump controller 32 that calculates the target rotation speed (compressor target rotation speed) TGNCh of the compressor 2 based on the radiator pressure Pci.
  • the air flow rate SW obtained by the air mix damper 28, the target supercooling degree TGSC that is the target value of the supercooling degree SC of the refrigerant at the outlet of the radiator 4, and the target heater described above that is the target value of the heater temperature Thp.
  • the F / F operation amount TGNChff of the compressor target rotation speed is calculated.
  • the heater temperature Thp is an air temperature (estimated value) on the leeward side of the radiator 4, and the radiator pressure Pci detected by the radiator pressure sensor 47 and the refrigerant outlet of the radiator 4 detected by the radiator outlet temperature sensor 44. It is calculated (estimated) from the temperature Tci.
  • the degree of supercooling SC is calculated from the refrigerant inlet temperature Tcxin and the refrigerant outlet temperature Tci of the radiator 4 detected by the radiator inlet temperature sensor 43 and the radiator outlet temperature sensor 44.
  • the target radiator pressure PCO is calculated by the target value calculator 79 based on the target supercooling degree TGSC and the target heater temperature TCO. Further, the F / B (feedback) manipulated variable calculation unit 81 calculates the F / B manipulated variable TGNChfb of the compressor target rotational speed by PID calculation or PI calculation based on the target radiator pressure PCO and the radiator pressure Pci. Then, the F / F operation amount TGNChff calculated by the F / F operation amount calculation unit 78 and the F / B operation amount TGNChfb calculated by the F / B operation amount calculation unit 81 are added by the adder 82 to obtain a limit setting unit as TGNCh00. 83 is input.
  • the lower limit speed ECNpdLimLo and the upper limit speed ECNpdLimHi for control are set to TGNCh0, and then the compressor OFF control unit 84 is used to determine the target compressor speed TGNCh.
  • the heat pump controller 32 controls the operation of the compressor 2 so that the radiator pressure Pci becomes the target radiator pressure PCO by the compressor target rotation speed TGNCh calculated based on the radiator pressure Pci.
  • the compressor OFF control unit 84 sets the compressor target rotation speed TGNCh to the above-described lower limit rotation speed ECNpdLimLo and sets the radiator pressure Pci to a predetermined upper limit value PUL and lower limit value PLL set above and below the target radiator pressure PCO.
  • the compressor 2 is stopped and the ON-OFF mode for ON-OFF controlling the compressor 2 is entered.
  • the compressor 2 In the ON-OFF mode of the compressor 2, when the radiator pressure Pci decreases to the lower limit value PLL, the compressor 2 is started to operate the compressor target rotation speed TGNCh as the lower limit rotation speed ECNpdLimLo, and heat is released in that state.
  • the container pressure Pci rises to the upper limit value PUL, the compressor 2 is stopped again. That is, the operation (ON) and the stop (OFF) of the compressor 2 at the lower limit rotation speed ECNpdLimLo are repeated.
  • the radiator pressure Pci decreases to the lower limit value PUL and the compressor 2 is started, and the radiator pressure Pci does not become higher than the lower limit value PUL for a predetermined time th2, the compressor 2 is turned on and off. Is completed and the normal mode is restored.
  • FIG. 12 is a control block diagram of the heat pump controller 32 that calculates the target rotation speed (compressor target rotation speed) TGNCc of the compressor 2 based on the heat absorber temperature Te.
  • the F / F operation amount calculation unit 86 of the heat pump controller 32 has an outside air temperature Tam, an air flow amount Ga of air flowing through the air flow passage 3 (may be a blower voltage BLV of the indoor blower 27), a target radiator pressure PCO, The F / F operation amount TGNCcff of the compressor target rotation speed is calculated based on the target heat absorber temperature TEO which is the target value of the heat absorber temperature Te.
  • the F / B manipulated variable calculation unit 87 also calculates the F / B manipulated variable TGNCcfb of the compressor target rotation speed by PID calculation or PI calculation based on the target heat absorber temperature TEO and the heat absorber temperature Te. Then, the F / F operation amount TGNCcff calculated by the F / F operation amount calculation unit 86 and the F / B operation amount TGNCcfb calculated by the F / B operation amount calculation unit 87 are added by the adder 88 to obtain a limit setting unit as TGNCc00. It is input to 89.
  • the lower limit rotational speed TGNCcLimLo and the upper limit rotational speed TGNCcLimHi for control are set to TGNCc0, and then the compressor OFF control unit 91 is used to determine the target compressor rotational speed TGNCc. Therefore, if the value TGNCc00 added by the adder 88 is within the upper limit rotational speed TGNCcLimHi and the lower limit rotational speed TGNCcLimLo and the ON-OFF mode described later does not occur, this value TGNCc00 is the target compressor rotational speed TGNCc (compressor 2 Will be the number of rotations).
  • the heat pump controller 32 controls the operation of the compressor 2 so that the heat absorber temperature Te becomes the target heat absorber temperature TEO by the compressor target rotation speed TGNCc calculated based on the heat absorber temperature Te.
  • the compressor OFF control unit 91 determines that the compressor target rotation speed TGNCc becomes the above-described lower limit rotation speed TGNCcLimLo, and the heat absorber temperature Te is set between the upper limit value TeUL and the lower limit value TeLL set above and below the target heat sink temperature TEO.
  • the compressor 2 is stopped and the ON-OFF mode in which the compressor 2 is ON-OFF controlled is entered.
  • FIG. 14 is a control block diagram of the heat pump controller 32 that calculates the target rotation speed (compressor target rotation speed) TGNCw of the compressor 2 based on the heat medium temperature Tw.
  • the F / F operation amount calculation unit 92 of the heat pump controller 32 uses the outside air temperature Tam, the flow rate Gw of the heat medium in the device temperature adjustment device 61 (calculated from the output of the circulation pump 62), and the heat generation amount of the battery 55 (battery).
  • the F / B operation amount calculation unit 93 performs the PID calculation or the PI calculation based on the target heat medium temperature TWO and the heat medium temperature Tw (transmitted from the battery controller 73) to perform the F / B operation amount TGNCwfb of the compressor target rotation speed. To calculate. Then, the F / F operation amount TGNCwff calculated by the F / F operation amount calculation unit 92 and the F / B operation amount TGNCwfb calculated by the F / B operation amount calculation unit 93 are added by the adder 94 to obtain a limit setting unit as TGNCw00. 96 is input.
  • the lower limit speed TGNCwLimLo for control and the upper limit speed TGNCwLimHi are set to TGNCw0, and then the compressor OFF control unit 97 is used to determine the target compressor speed TGNCw. Therefore, if the value TGNCw00 added by the adder 94 is within the upper limit rotation speed TGNCwLimHi and the lower limit rotation speed TGNCwLimLo and the ON-OFF mode described later does not occur, this value TGNCw00 is the target compressor rotation speed TGNCw (compressor 2 Will be the number of rotations). In the normal mode, the heat pump controller 32 controls the operation of the compressor 2 so that the heat medium temperature Tw becomes the target heat medium temperature TWO by the compressor target rotation speed TGNCw calculated based on the heat medium temperature Tw.
  • the compressor OFF control unit 97 determines that the compressor target rotation speed TGNCw becomes the above-described lower limit rotation speed TGNCwLimLo, and the heat medium temperature Tw is the upper limit value TwUL and the lower limit value TwLL set above and below the target heat medium temperature TWO.
  • the compressor 2 is stopped and the ON-OFF mode for ON-OFF controlling the compressor 2 is entered.
  • the compressor 2 In the ON-OFF mode of the compressor 2 in this case, when the heat medium temperature Tw rises to the upper limit value TwUL, the compressor 2 is started and the compressor target rotation speed TGNCw is operated as the lower limit rotation speed TGNCwLimLo, and the state is maintained. If the heat medium temperature Tw has dropped to the lower limit value TwLL, the compressor 2 is stopped again. That is, the operation (ON) and the stop (OFF) of the compressor 2 at the lower limit rotation speed TGNCwLimLo are repeated.
  • the battery cooling (single) mode the battery cooling (priority) + air conditioning mode, the air conditioning (priority) + battery cooling mode, and the battery Execution of heating mode (these are the first operation mode) is prohibited (not permitted), and execution of heating mode, dehumidification heating mode, dehumidification cooling mode, cooling mode, defrost mode (these are the second operation modes) Allow (second row from the top in Fig. 16).
  • the abnormality relating to the battery temperature control information (information necessary for temperature control of the battery (object to be temperature controlled)) transmitted from the air conditioning controller 45 is one of the following in the embodiment, or , Their combination, or all of them.
  • Iii) Abnormality of information of heat medium temperature Tw and battery temperature Tcell (disconnection / short circuit / absorption of heat medium temperature sensor 76 and battery temperature sensor 77)
  • the heat pump controller 32 can electrically detect the disconnection / short circuit abnormality.
  • the attachment abnormality of the heat medium temperature sensor 76 and the battery temperature sensor 77 is a case where the respective sensors are not attached to the attachment location and are detached, for example, during operation, or after a predetermined time has elapsed after the start of operation. However, it can be detected because the detected value does not change more than the predetermined value.
  • the operation information of the solenoid valve (for cabin) 35 is abnormal, the inflow of the refrigerant into the heat absorber 9 cannot be controlled. Therefore, in the second stage of FIG. 16, only the heating mode described above is used. Will be allowed.
  • the heat pump controller 32 performs each air conditioning operation of the heating mode, the dehumidification heating mode, the dehumidification cooling mode, the cooling mode, and the air conditioning (priority) + battery cooling mode, and the battery cooling (priority). ) + Prohibit (not allow) the execution of the air conditioning mode and the defrosting mode (third stage from the top in FIG. 16).
  • the HP control information includes operation information of the compressor 2 other than the above, each of the blowers 15, 27, each of the dampers 26, 28, 31, the auxiliary heater 23, the temperature, the humidity, and the pressure other than the above.
  • Sensor information relating to carbon dioxide concentration and the like which is information necessary for air conditioning of the vehicle interior, which is input to the heat pump controller 32.
  • the heat pump controller 32 permits execution of only the battery heating mode (third stage in FIG. 16). Part of the battery cooling (single) mode is permitted (third stage in FIG. 16). The partial permission of the battery cooling (single) mode in this case is necessary for air conditioning of the vehicle interior of the vehicle such as the indoor blower 27 and the heat absorber temperature sensor 48, but is not necessary in the battery cooling (single) mode. If the HP control information is abnormal, execution is permitted. Further, when both the HP control information and the battery temperature control information are abnormal (bottom row in FIG. 16), execution (non-permission) of all operation modes is prohibited.
  • the heat pump controller 32 when an abnormality related to the battery temperature control information (information necessary for temperature control of the temperature controlled target) occurs, the battery cooling (single) mode, the battery cooling (priority) + air conditioning mode, the air conditioning (Priority) + Battery cooling mode and battery heating mode (these are the first operation modes) are prohibited from execution, and heating mode, dehumidification heating mode, dehumidification cooling mode, cooling mode, defrost mode (these are the second operation modes) Mode) is allowed.
  • the battery cooling (single) mode, the battery cooling (priority) + air conditioning mode, the air conditioning (Priority) + Battery cooling mode and battery heating mode (these are the first operation modes) are prohibited from execution, and heating mode, dehumidification heating mode, dehumidification cooling mode, cooling mode, defrost mode (these are the second operation modes) Mode) is allowed.
  • the temperature control of the battery 55 can be stopped and the air conditioning in the vehicle interior can be continued.
  • passenger comfort and safety can be ensured.
  • the battery temperature control information is the battery cooling request / battery heating request as the temperature control request of the temperature controlled object, the operation information of the solenoid valve (for cabin) 35 and the solenoid valve (for chiller) 69, the heat medium temperature. Since the information of Tw and the battery temperature Tcell, the abnormality of the operation information of the circulation pump 62, and the abnormality of the operation information of the heat medium heating heater 63 are included in the communication of the information, the communication of the battery temperature control information is performed. It becomes possible to continue air conditioning in the vehicle compartment even when there is a disruption.
  • the heat pump controller 32 recognizes the vehicle air conditioner that does not have the temperature control function of the battery 55 by not inputting the battery temperature control information, the vehicle air conditioner that does not have the temperature control function of the battery 55. There is no need to prepare separate heat pump controllers 32 for the device, that is, the vehicle air conditioner that does not include the device temperature adjusting device 61 and the vehicle air conditioner 1 that includes the device temperature adjusting device 61 as in the embodiment. There is also an advantage that the heat pump controller 32 (at least a part of the control device 11) can be shared between the vehicle air conditioners.
  • the heat pump controller 32 is necessary for air conditioning in the vehicle interior, but when an abnormality regarding information that is not necessary for the temperature control of the battery 55 occurs, the heating mode, the dehumidifying and heating mode, the dehumidifying and cooling mode, the cooling mode, the deactivating Execution of the frost mode (these are the second operation modes) is prohibited, and execution of the battery heating mode and the battery cooling (single) mode (these are the first operation modes) is permitted (in the case of the battery cooling (single) mode, However, even if an abnormality related to information that is not necessary for the temperature control of the battery 55 occurs, the air conditioning in the vehicle compartment is stopped and the battery 55 is not allowed. The temperature control can be continued, and the safety of the battery 55 can be ensured.
  • the air conditioning (priority) + battery cooling mode, the battery cooling (priority) air conditioning mode, and the battery cooling (single) mode can be executed, so that the vehicle can be operated depending on the situation.
  • the air conditioning in the room and the cooling of the battery 55 can be appropriately performed without any trouble.
  • the heating mode, the dehumidifying heating mode, the dehumidifying cooling mode, the cooling mode, and the defrosting mode can be executed, so that even when an abnormality related to the battery temperature control information occurs, It becomes possible to realize comfortable air conditioning in the room.
  • the device-temperature adjusting device 61 causes the refrigerant-heat medium heat exchanger 64 for exchanging heat between the refrigerant and the heat medium, the heat medium heater 63, and heat between them and the battery 55.
  • the circulation pump 62 for circulating the medium, the heat medium can be cooled / heated by using the refrigerant, and the battery 55 can be smoothly heated / cooled via the heat medium.
  • the heat medium temperature Tw is adopted as the temperature of the target (heat medium) cooled by the refrigerant-heat medium heat exchanger 64 (heat exchanger for temperature control), but the battery temperature Tcell is used. It may be adopted as the temperature of the object to be cooled by the refrigerant-heat medium heat exchanger 64 (heat exchanger for temperature control), and the temperature of the refrigerant-heat medium heat exchanger 64 (refrigerant-heat medium heat exchanger) The temperature of 64 itself, the temperature of the refrigerant flowing out of the refrigerant channel 64B, etc.) may be adopted as the temperature of the refrigerant-heat medium heat exchanger 64 (heat exchanger for temperature adjustment).
  • the heat medium is circulated to control the temperature of the battery 55.
  • the invention other than claim 7 is not limited to this, and the refrigerant and the battery 55 (object to be temperature-controlled) are directly heat-exchanged.
  • a heat exchanger for temperature control may be provided. In that case, the battery temperature Tcell becomes the temperature of the target to be cooled by the target heat exchanger for temperature adjustment.
  • the vehicle 55 is capable of cooling the battery 55 while cooling the vehicle interior in the air conditioning (priority) + battery cooling mode and the battery cooling (priority) + air conditioning mode for simultaneously cooling the vehicle interior and cooling the battery 55.
  • the air conditioning apparatus 1 has been described, the cooling of the battery 55 is not limited to during cooling, but other air conditioning operation, for example, the above-described dehumidifying and heating operation and cooling of the battery 55 may be performed simultaneously.
  • the solenoid valve 69 is opened, and a part of the refrigerant flowing toward the heat absorber 9 via the refrigerant pipe 13F is caused to flow into the branch pipe 67 and flow into the refrigerant-heat medium heat exchanger 64.
  • the electromagnetic valve 35 is the heat absorber valve device (valve device) and the electromagnetic valve 69 is the temperature controlled valve device (valve device), but the indoor expansion valve 8 and the auxiliary expansion valve 68 can be fully closed.
  • the solenoid valves 35 and 69 are not required, the indoor expansion valve 8 serves as the heat absorber valve device of the present invention, and the auxiliary expansion valve 68 serves as the temperature controlled valve device.
  • the configuration and numerical values of the refrigerant circuit R described in the embodiments are not limited thereto and can be changed without departing from the spirit of the present invention.
  • the present invention has been described with the vehicle air conditioner 1 having each operation mode such as the heating mode, the dehumidification heating mode, the dehumidification cooling mode, the cooling mode, the air conditioning (priority) + battery cooling mode, but the present invention is not limited thereto.
  • any one of the first operation modes in which the temperature of the battery 55 is adjusted and any one of the second operation modes in which the temperature of the battery 55 is not adjusted for example, cooling mode, air conditioning (priority) + battery cooling mode
  • the present invention is also effective for a vehicle air conditioner capable of executing only battery cooling (priority) + air conditioning mode.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air-Conditioning For Vehicles (AREA)

Abstract

La présente invention aborde le problème de la réalisation d'un dispositif de climatisation pour véhicule capable de continuer à conditionner l'air à l'intérieur d'un compartiment de véhicule sans défaillance, même lorsqu'une anomalie se produit qui se rapporte à des informations requises pour la régulation de température d'une cible de régulation de température installée dans le véhicule. La solution selon la présente invention porte sur un dispositif de climatisation pour véhicule qui est équipé d'un appareil de réglage de température de dispositif (61) destiné à régler la température d'une batterie (55) installée dans un véhicule. Pendant ce temps, un dispositif de commande (contrôleur de pompe à chaleur) possède un premier mode de fonctionnement pour réguler la température de la batterie (55) en utilisant l'appareil de réglage de température de dispositif, et un deuxième mode de fonctionnement qui ne réalise pas de régulation de température de la batterie (55). Lorsqu'une anomalie est présente dans les informations requises pour la régulation de température de la batterie (55), l'exécution du premier mode de fonctionnement est interdite et l'exécution du deuxième mode de fonctionnement est permise.
PCT/JP2019/041091 2018-11-16 2019-10-18 Dispositif de climatisation pour véhicule WO2020100524A1 (fr)

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JP2014037181A (ja) * 2012-08-13 2014-02-27 Calsonic Kansei Corp 電動車両用熱管理システム
JP2014228190A (ja) * 2013-05-22 2014-12-08 株式会社デンソー 冷凍サイクル装置
JP2018124021A (ja) * 2017-02-02 2018-08-09 株式会社デンソー 熱交換モジュール、および温度調整装置
WO2018198581A1 (fr) * 2017-04-26 2018-11-01 サンデン・オートモーティブクライメイトシステム株式会社 Dispositif de conditionnement d'air pour véhicule

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JP5880863B2 (ja) * 2012-02-02 2016-03-09 株式会社デンソー 車両用熱管理システム
JP6126412B2 (ja) * 2012-02-28 2017-05-10 株式会社日本クライメイトシステムズ 車両用空調装置
JP6470026B2 (ja) * 2014-12-04 2019-02-13 サンデンホールディングス株式会社 車両用空気調和装置
JP6590551B2 (ja) * 2015-06-26 2019-10-16 サンデン・オートモーティブクライメイトシステム株式会社 車両用空気調和装置
JP2018103879A (ja) * 2016-12-27 2018-07-05 サンデン・オートモーティブクライメイトシステム株式会社 車両用空気調和装置
JP6871745B2 (ja) * 2017-01-20 2021-05-12 サンデン・オートモーティブクライメイトシステム株式会社 車両用空気調和装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014037181A (ja) * 2012-08-13 2014-02-27 Calsonic Kansei Corp 電動車両用熱管理システム
JP2014228190A (ja) * 2013-05-22 2014-12-08 株式会社デンソー 冷凍サイクル装置
JP2018124021A (ja) * 2017-02-02 2018-08-09 株式会社デンソー 熱交換モジュール、および温度調整装置
WO2018198581A1 (fr) * 2017-04-26 2018-11-01 サンデン・オートモーティブクライメイトシステム株式会社 Dispositif de conditionnement d'air pour véhicule

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