JP2012192867A - System for cooling storage capacitor for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a system for cooling a storage capacitor for a vehicle, which efficiently cools a storage capacitor irrespective of the amount of solar radiation and eliminates or reduces the uncomfortablenesses of all occupants caused by a fan and air blow for cooling the storage capacitor without deteriorating air conditioning comfortability for the occupants.SOLUTION: A battery cooling system 10 includes an ECU as a control unit and takes-in the air of a vehicle interior from right and left air inlets 30, 32 provided in the rear side of the vehicle 12 to cool a battery. The right and left air inlets 30, 32 are provided in two position of both right and left ends that are lateral sides on a vehicle body sides of a rear seat 64. The ECU controls open/close levels of the right and left air inlets 30, 32 and a blowing air volume of a controlling side blowing outlet 44 (46) selected from right and left blowing outlets 44, 46 based on occupant seating information that is seating state information of front seats 20, 22 and the rear seat 64, and solar radiation information so that a flow of cool air in the vehicle interior is controllable.

Description

  The present invention relates to a vehicle power storage unit cooling system that cools a power storage unit mounted on a vehicle by taking in air in a vehicle compartment from an intake port provided at the rear of the vehicle.

  2. Description of the Related Art Conventionally, an electric vehicle such as an electric vehicle, a hybrid vehicle, or a fuel cell vehicle, which is a drive source for driving the vehicle and includes a traveling electric motor supplied with electric power from a battery, is known. For example, it is known that high fuel efficiency can be obtained with a hybrid vehicle driven by one or both of an engine and an electric motor for traveling.

  In such an electric vehicle, heat is generated during charging / discharging of a battery as an electric storage body for supplying electric power to the electric motor for traveling. Therefore, heat is used from the viewpoint of preventing an increase in battery life and a decrease in battery performance. It is preferable to remove the temperature, that is, to lower the temperature of the battery appropriately. For this reason, it has been conventionally considered to provide a battery cooling device for cooling the battery.

  For example, Patent Document 1 describes a vehicular condenser cooling device that introduces cool air in a vehicle compartment into a battery from an intake port of a rear parcel. In this cooling device, the air conditioner CPU detects that the detected values of the outside air temperature sensor and the solar radiation amount sensor exceed the outdoor air temperature threshold and the solar radiation amount threshold, respectively, and the detected value of the battery temperature sensor exceeds the battery temperature threshold. It is said that the rotational speed of the blower fan of the air conditioner unit is increased.

  Patent Document 2 describes a battery cooling device that takes in air from an intake port provided in an intake port variable mechanism provided on the rear side of a rear seat and ventilates the travel battery by a cooling fan to cool the travel battery. Has been. In this cooling device, the seating state of the seat is acquired by the seating acquisition means, and the intake box having the intake port is moved in the vehicle width direction based on the acquired seating state, so that the position of the intake port is changed. Yes.

JP 2007-123079 A JP 2007-220659 A

  In the case of the cooling device described in Patent Document 1, when the amount of solar radiation into the vehicle and the outside air temperature are high and the battery temperature is high, the amount of cool air blown into the vehicle interior is increased, Therefore, it can be said that there is no possibility of lowering the battery temperature by sending out cool air at a large flow rate. However, only one intake port is provided in the rear parcel near the passenger's ear sitting in the rear seat, and the battery temperature and solar radiation amount when the rear seat passenger is in the vicinity of the intake port. When the air intake becomes higher and the amount of cold air sucked into the air intake becomes higher, there is a possibility that wind unnecessary for the occupant, particularly the occupant in the rear seats, and noise such as an annoying blown air noise may occur, impairing the comfort of the occupant.

  Further, in the configuration described in Patent Document 2, the position of the intake port is changed depending on the seating position of the rear seat in order to reduce occupant discomfort due to the noise of the battery cooling fan. However, in the case of the battery cooling device described in Patent Document 2, since the intake port is provided on the rear side of the rear seat, cold air that has passed near the rear seat passenger's ear can be sucked from the intake port. In this case as well, it cannot be said that there is no possibility of noise such as wind and an unpleasant blast sound that are unnecessary for passengers, particularly passengers in the rear seats. In addition, when the amount of solar radiation radiated into the passenger compartment through a window glass such as a back glass is large, the air near the intake port may be warmed, and the intake air temperature tends to rise, which may be disadvantageous for battery cooling. is there. In addition, if the airflow of an air conditioner is constant regardless of the amount of solar radiation, high air conditioning comfort may not be obtained unless the occupant manually operates the air conditioner to make a strong wind when the amount of solar radiation is large. There is sex.

  For this reason, it is possible to efficiently cool the power storage unit by suppressing the temperature of the cooling air that cools the power storage unit regardless of the amount of solar radiation, and to blow the fans and fans for cooling the power storage unit without impairing the air conditioning comfort of the passengers. Therefore, it is desired to realize a power storage unit cooling system that can eliminate or reduce the discomfort caused by the noise of all passengers.

  An object of the present invention is to provide a fan for cooling a power storage unit for all passengers in a vehicle power storage unit cooling system for efficiently cooling the storage unit regardless of the amount of solar radiation and without impairing the air conditioning comfort of the passengers. The object is to eliminate or reduce the discomfort caused by air blowing.

  A power storage unit cooling system for a vehicle according to the present invention is a vehicle power storage unit cooling system that cools a power storage unit mounted on a vehicle by taking in air in a vehicle compartment from an air intake port provided at the rear of the vehicle. The mouths are the left and right air intakes provided at the left and right ends of the vehicle body side of the rear seat. The left and right air intakes are opened and closed, and on both the left and right sides of the front seat of the vehicle interior air conditioner. A control unit that controls the amount of air blown from one or both of the left and right air outlets provided at two locations apart from each other, the passenger seating information that is the seating information of the front seat and the rear seat, and the level of solar radiation Control that can change the flow of cool air in the passenger compartment by controlling the open / closed states of the left and right inlets and the amount of air blown from the control side outlet selected from the left and right outlets based on the solar radiation information Power storage for vehicles characterized by comprising a unit It is a cooling system.

  Further, in the vehicle power storage unit cooling system according to the present invention, preferably, the control unit is selected from open / closed states of the left and right intake ports and left and right outlets based on occupant seating information and solar radiation information. The open / close state of the left and right intake ports and the blown air volume of the control side air outlet are controlled using matrix data that defines the relationship between the side air outlet and the blown air volume of the control side air outlet.

  Further, in the electric storage battery cooling system for a vehicle according to the present invention, preferably, a left and right blowing louver, which is provided respectively in the periphery of the left and right blowing ports and capable of adjusting a wind direction blown from the left and right blowing ports, And a left and right balloon actuator that changes the direction, and the control unit includes a balloon actuator control unit that controls driving of the left and right balloon actuator.

  Further, in the vehicle power storage unit cooling system according to the present invention, preferably, the left and right intake louvers are provided in the peripheral portions of the left and right intake ports, respectively, and the open / close of the left and right intake louvers is switched. The left and right intake actuators are provided, and the control unit has intake actuator control means for controlling the drive of the left and right intake actuators.

  Further, in the vehicle power storage unit cooling system according to the present invention, preferably, the left and right intake louvers are provided in the peripheral portions of the left and right intake ports, respectively, and the open / close of the left and right intake louvers is switched. The left and right intake actuators, and the controller integrally controls the intake actuator control means for controlling the drive of the left and right intake actuators, the blowout actuator control means and the intake actuator control means, and controls the directions of the left and right blowout louvers and the left and right intake louvers. Louver integrated control means for controlling in conjunction.

  The vehicle power storage unit cooling system according to the present invention preferably includes left and right intake temperature sensors provided in left and right ducts connected to the left and right intake ports, respectively, and the control unit is one of the left and right intake temperature sensors or When the intake air temperature detected by both intake air temperature sensors exceeds a preset threshold temperature, the amount of air blown out from one or both of the left and right air outlets increases regardless of the passenger seating information and solar radiation information And a blowing air volume forced increase means for controlling the air flow.

  According to the vehicle power storage unit cooling system of the present invention, an appropriate opening / closing state of the left and right intake ports, a control-side air outlet, and an air volume of the control-side air outlet are set from occupant seating information and solar radiation information. Therefore, for example, by increasing the air volume at the control-side outlet, the temperature of the cooling air for cooling the power storage unit can be kept low regardless of the amount of solar radiation, and the power storage unit can be efficiently cooled. Further, the discomfort caused by the air blowing for cooling the power storage unit and the noise of the fans can be eliminated or reduced by all passengers without impairing the air conditioning comfort of the passengers. In addition, since the left and right air intakes are provided at two left and right end portions on the side of the vehicle body of the rear seat, all passengers are more uncomfortable due to the cooling of the battery and the noise of the fans. Can be reduced.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic diagram illustrating a vehicle including a vehicle power storage body cooling system according to an example of an embodiment of the present invention. FIG. 2 is a schematic diagram showing the left and right outlets and the left and right inlets as viewed from above in FIG. 1 in the vehicle of FIG. 1. FIG. 2 is a configuration diagram showing an air conditioner unit, an air conditioner battery cooling ECU as a control unit, and a battery cooling unit in the vehicle power storage unit cooling system of FIG. 1. It is a figure which shows the 1st matrix data in the case of boarding only a driver's seat in the front seat among the matrix data used with an air-conditioner battery cooling ECU. It is a figure which shows the 2nd matrix data at the time of boarding only a passenger seat in the front seat among the matrix data used with an air-conditioner battery cooling ECU. It is a figure which shows the 3rd matrix data at the time of boarding in both a driver's seat and a passenger seat in the front seat among the matrix data used with an air-conditioner battery cooling ECU. FIG. 3 is a view corresponding to FIG. 2 for explaining the flow of cold air when a passenger is seated only in the driver's seat and there is solar radiation. FIG. 3 is a view corresponding to FIG. 2 for explaining the flow of cold air when a passenger is seated only at the left end of the driver's seat and the rear seat and there is no solar radiation.

  Hereinafter, embodiments according to the present invention will be described in detail with reference to the drawings. 1 to 8 show an embodiment of the present invention. In the following description, front, rear, left and right are front, rear, left and right in the vehicle. The arrows in FIGS. 2, 7, and 8 indicate the front-rear and left-right directions.

  As shown in FIGS. 1 to 3, a vehicle 12 including a battery cooling system 10 that is a power storage body cooling system for a vehicle according to the present embodiment includes an engine and an electric motor for traveling that are not shown. This is a hybrid vehicle that is an electric vehicle that drives one or both of the motors as a drive source. However, the vehicle including the battery cooling system 10 may be another electric vehicle such as an electric vehicle or a fuel cell vehicle including a traveling electric motor. Moreover, the vehicle provided with the battery cooling system 10 is a battery that is a power storage unit, and may be another type of vehicle that cools the battery with air taken from inside the vehicle.

  In the vehicle 12, the electric motor for traveling is supplied with electric power from a battery 14, which is a power storage unit mounted on the rear portion of the vehicle 12, via a drive unit (not shown) including an inverter and the like, and is driven to rotate. A wheel, for example, the front wheel 16 or the rear wheel 18 or the front wheel 16 and the rear wheel 18 is driven through the power transmission mechanism. In the vehicle 12, the electric motor for traveling functions as a generator during regenerative braking, and the generated electric power is supplied to the battery 14 via the drive unit and charged.

  The battery cooling system 10 includes an air conditioner unit 24 that is a vehicle interior air conditioner provided in front of the front seats 20 and 22 of the vehicle 12, an air conditioner battery cooling ECU 26 that is a control unit, and a battery cooling that is provided at the rear of the vehicle 12. And a unit 28. The battery cooling system 10 cools the battery 14 mounted on the vehicle 12 by taking in air from the left and right intake ports 30, 32 provided at the rear of the vehicle 12.

  The air conditioner unit 24 includes a refrigerant circulation section 36 having a condenser (condenser) and a compressor (not shown), an evaporator 34, an air conditioner duct 38, and an air conditioner blower fan 40 disposed in the air conditioner duct 38. Including. The air conditioner duct 38 includes an outside air inlet 42, an inside air inlet (not shown), and left and right outlets 44 and 46 that open into the vehicle interior. The outside air introduction port 42 takes in air from outside the vehicle compartment, and the inside air introduction port takes in air from the vehicle interior. As shown in FIG. 2, the left and right outlets 44, 46 are left and right side registers provided at two left and right ends at the left and right ends of the front side of the front seats 20, 22. In addition, by driving the air conditioner blower fan 40 (FIG. 1), air is taken in from the outside air inlet 42 (FIG. 1) or the inside air inlet, passes through the evaporator 34 (FIG. 1), and then left and right outlets 44, One or both of 46 can be blown out.

  As shown in FIG. 3, the air conditioner duct 38 divides the air sent from the outside air inlet 42 (FIG. 1) or the inside air inlet into the branch duct portions 48, 50. It flows to the left and right outlets 44 and 46 connected to the ends. An evaporator 34 and an air conditioner blower fan 40 are provided inside the intermediate portion of the air conditioner duct 38. The temperature of the evaporator 34 decreases as the refrigerant flowing inside evaporates. Then, the temperature of the air is decreased by passing the air through the evaporator 34, and the air conditioner blower fan 40 causes the air to flow downstream in the air conditioner duct 38, and the air whose temperature is decreased from the left and right outlets 44 and 46. I try to blow it out. The air conditioner unit 24 is provided with another air passage in which a heater (not shown) is arranged, and an appropriate amount of air that has been heated by the heater according to the set temperature of the air conditioner unit 24 and air that has been lowered in temperature by the evaporator 34. Although mixing is performed, the illustration of this configuration and further description thereof are omitted. In addition to the left and right outlets 44 and 46, the vehicle interior is connected to the left and right center registers and the left and right center registers at the middle in the left and right direction on the front side of the front seats 20 and 22 (FIG. 1). Although another branch duct portion to be configured is also provided, these are not shown.

  Whether the air is taken in from the outside air inlet 42 (FIG. 1) or the inside air inlet can be set by an operation unit on the instrument panel provided in the passenger compartment of the air conditioner unit 24. The outside air intake mode and the inside air circulation mode can be switched by switching a switching door (not shown) provided in the air conditioner duct 38 according to the setting.

  In addition, left and right blowing louvers 52 and 54 are provided in the vicinity of the left and right blowing ports 44 and 46 at the ends of the branch duct portions 48 and 50 of the air-conditioner duct 38, respectively. The left and right blowing louvers 52 and 54 can adjust the wind direction and the amount of wind blown from the left and right blowing ports 44 and 46 by changing the direction of the louvers. For example, each of the blowing louvers 52 and 54 can be set to 0 by completely closing one of the blowing louvers 52 and 54. The left and right blowing louvers 52 and 54 can change the wind direction and the amount of air by left and right blowing actuators 56 and 58 including a motor and a drive mechanism (not shown in detail), respectively.

  Returning to FIG. 1, the battery cooling unit 28 includes a battery accommodating chamber 60 provided below the trunk room at the rear of the vehicle, a battery 14 accommodated in the battery accommodating chamber 60, and a battery connected to the battery accommodating chamber 60. A duct 62. As shown in FIGS. 2 and 3, the battery duct 62 is provided with left and right intake ports 30 and 32 that are separately provided on the left and right sides, and air taken from the left and right intake ports 30 and 32 is on the downstream side. The battery 14 is sent to the battery housing chamber 60 (FIG. 3), and after cooling the battery 14, it is discharged to the outside or returned to the vehicle interior.

  As shown in FIG. 2, the left and right intake ports 30, 32 are provided at the seat side portion 68 outside the both ends of the seat surface 66, which are two left and right end portions on the vehicle body side portion side of the rear seat 64. Yes. The seat side portion 68 can be constituted by a part of the seat that is removed from the seating surface 66 or a panel portion such as resin. The intake ports 30 and 32 are opened so as to face upward, for example. Note that the left and right intake ports 30 and 32 are opened at the seat back side portions outside the both ends of the seat back 70, which are two left and right end portions on the vehicle body side portion side of the rear seat 64, for example, facing forward. It can also be made. The seat back side part can be constituted by a part of the sheet removed from the seat back 70 or a panel part such as a resin.

  As shown in FIG. 3, the air that has flowed through the two branch ducts 72 and 74 connected to the intake ports 30 and 32 merges at the junction, and then is stored in the downstream battery by the battery blower fan 76. Air is blown into the chamber 60. For this reason, the battery 14 can be cooled by driving the battery blower fan 76.

  In addition, left and right intake louvers 78 and 80 are provided in the periphery of the left and right intake ports 30 and 32, respectively. The left and right intake louvers 78, 80 are for adjusting the wind direction of the left and right intake ports 30, 32 and for switching the open / close state, the intake direction can be adjusted by changing the direction of the louvers, and Switching between opening and closing is possible. For example, the intake air volume on the fully closed side can be reduced to zero by either of the intake louvers 78 and 80 being fully closed. The left and right intake louvers 78, 80 can be changed in wind direction, air volume, and open / close by left and right intake actuators 82, 84 including motors and drive mechanisms not shown in detail.

  In addition, the battery cooling system 10 includes an air conditioner battery cooling ECU (electronic control unit) (hereinafter sometimes simply referred to as “ECU”) 26 as a control unit. The ECU 26 includes a microcomputer having a storage unit such as a CPU and a memory. The ECU 26 includes an open / closed state of the left and right intake ports 30 and 32, and an air flow rate of one or both of the left and right air outlets 44 and 46 of the air conditioner unit 24. To control. Specifically, the battery cooling system 10 includes a blowout actuator control unit 86, an intake actuator control unit 88, and a louver integrated control unit 90. The blowout actuator control means 86 controls the driving of the left and right blowout actuators 56 and 58 according to a control signal from the louver integrated control means 90. The intake actuator control means 88 controls the driving of the left and right intake actuators 56 and 58 according to the control signal from the louver integrated control means 90. The louver integration control means 90 performs integrated control of the blowout actuator control means 86 and the intake actuator control means 88 using matrix data to be described later, and the directions of the left and right blowout louvers 52 and 54 and the left and right intake louvers 78 and 80 are controlled. Control in conjunction with each other.

  In addition, as shown in FIG. 2, the battery cooling system 10 detects occupant seating information that is seating information between the right and left front seats 20 and 22 that are the driver's seat and the front passenger seat, and the rear seat 64, that is, presence / absence of seating. A plurality of seating sensors 92 are provided. The seating sensor 92 can be composed of a plurality of pressure sensors respectively provided below the right and left front seats 20 and 22 and the left and right positions and the center position of the rear seat 64. The seating sensor 92 is a buckle switch provided at the attachment / detachment portion of a plurality of seat belts (not shown) provided corresponding to the left and right positions and the center position of the right and left front seats 20 and 22 and the rear seat 64, respectively. It can also be comprised. In this case, it is determined that the occupant is seated in the corresponding seat when the seat belt is attached to the buckle, and the occupant is not seated in the corresponding seat when the seat belt is detached from the buckle. Is determined. The passenger seating information detected by the seating sensor 92 is output to the ECU 26 (FIG. 3).

  Further, as shown in FIG. 1, the battery cooling system 10 includes a solar radiation amount sensor 96 provided on an upper panel 94 called a rear parcel provided in the upper part on the rear side of the rear seat 64. The solar radiation amount sensor 96 can detect the solar radiation amount irradiated through the back glass, detects whether the solar radiation amount is high or low, that is, whether or not the solar radiation amount is higher than a threshold value, and sends the solar radiation information indicating the high or low state to the ECU 26. Output.

  In addition, the ECU 26 is configured to indicate an operation such as an in-vehicle temperature from an in-vehicle temperature sensor that detects an in-vehicle temperature, a battery temperature from a battery temperature sensor that detects the temperature of the battery 14, an on / off operation of an operation unit of the air conditioner unit 24. A signal and a set temperature set by the operation unit of the air conditioner unit 24 are also input. In some cases, a temperature outside the vehicle compartment, that is, an outside temperature sensor that detects the outside air temperature can be provided, and the outside temperature can be input to the ECU 26 from the outside temperature sensor. The ECU 26 drives the battery blower fan 76 when the vehicle is started, and cools the battery 14 by taking the air in the vehicle compartment into the battery duct 62. The ECU 26 can also drive the battery blower fan 76 based on the battery temperature. For example, the battery blower fan 76 can be driven only when the battery temperature exceeds a threshold temperature.

  The ECU 26 drives the air conditioner unit 24 based on the information detected by the various sensors described above and the like, and drives the air conditioner unit 24 to blow out the air adjusted to an appropriate temperature to the left and right. It blows out from the mouths 44, 46, etc. In the present embodiment, an auto / manual switching unit (not shown) is provided in the operation unit of the air conditioner unit 24. When the auto mode is selected by this switching unit and the temperature is set by the temperature setting unit, The vehicle interior temperature is adjusted by the set temperature. Accordingly, the opening degree of the blowout louver 52 (or 54) (FIG. 3) provided in one of the left and right blowout openings 44 and 46, that is, the wind direction is adjusted automatically, that is, automatically. . When the manual mode is selected by the auto / manual switching unit, the blowout louver 52 (or 54) provided in one of the left and right blowout ports 44 and 46 in accordance with the air volume instructed by the adjustment of the airflow instruction unit. The wind direction may be adjusted automatically. In addition, an auto / manual switching unit is not provided in the operation unit of the air conditioner unit 24, and a blowout louver 52 (or 54) provided in one of the left and right blowout ports 44 and 46 according to the air volume instructed by adjustment of the air volume instruction unit. ) May be adjusted automatically.

  Further, when the air conditioner unit 24 is instructed to turn on, the ECU 26 selects the other of the left and right outlets 44 and 46 as the control side outlet, and the amount of air blown from the selected control side outlet 46 (or 44). Is kept higher than the intermediate air volume, for example, high which is the maximum. In the present embodiment, of the left and right outlets 44, 46, selection is made between the control side outlet 46 (or 44) for maintaining the amount of the outlet air flow at a large level and the outlet 44 (or 46) for automatically changing the wind direction. Is performed using the following matrix data based on the above-mentioned seating information and solar radiation information. The ECU 26 uses the matrix data to open and close the left and right intake ports 30 and 32 of the battery cooling unit 28 and the blowout of the control side outlet 46 (or 44) based on the seating information and the solar radiation information. The flow of cool air in the passenger compartment can be changed by controlling the air volume.

  The matrix data includes first matrix data shown in FIG. 4, second matrix data shown in FIG. 5, and third matrix data shown in FIG. Each of these matrix data is stored in the storage unit of the ECU 26. Hereinafter, the same elements as those illustrated in FIGS. 1 to 3 are denoted by the same reference numerals for description. Each of the above matrix data includes the occupant seated states of the front seats 20 and 22 and the rear seat 64, the solar radiation height (with or without solar radiation), the inlets 30 and 32 (battery inlets) to be used, the left and right outlets 44, The relationship with the blowout air volume of 46 is defined. The first matrix data in FIG. 4 defines a case where the front seats 20 and 22 are only in the right front seat 20 (driver's seat). The second matrix data in FIG. 5 defines a case where the front seats 20 and 22 are only in the left front seat 22 (passenger seat). The third matrix data in FIG. 6 defines a case where both the left and right front seats 20 and 22 are boarded.

  4 to 6, the seating states of the front seats 20 and 22 and the rear seat 64 are indicated by “0” or “1”. “0” indicates that the occupant is seated, and “1” indicates that the occupant is not seated. Further, in the column “existence of solar radiation”, “present” indicates that the solar radiation amount is high, and “none” indicates that the solar radiation amount is low. In the column of “Battery Inlet Used”, the left and right inlets 30 and 32 are opened and closed. “Left” indicates that the left inlet 30 is opened and the right inlet 32 is closed. “Right” indicates that the right intake port 32 is opened and the left intake port 30 is closed. “Left and right” indicates that both the left and right intake ports 30 and 32 are open. These open and closed states are switched by switching the intake direction of the intake louvers 78 and 80 described above.

  In the “front seat A / C air volume” column, the air is blown out from the left and right outlets 44 and 46 provided on the left front seat 22 (passenger seat) side and the right front seat 20 (driver seat) side, respectively. “X” indicates that the air volume is automatically switched in accordance with auto, that is, the set temperature, the air volume, or the like set by the operation unit. “Hi” indicates that the blown air volume is larger than the intermediate air volume, for example, the maximum. The ECU 26 then opens and closes the left and right intake ports 30 and 32 from the occupant seating information and the solar radiation information, the control side outlet 46 (or 44) selected from the left and right outlets 44 and 46, and the control side. The flow of cool air in the passenger compartment can be changed using the matrix data that defines the relationship with the amount of air blown from the air outlet 46 (or 44). The left and right center registers, which are not shown, can also be set to auto in both cases. In this case, the left and right center registers are provided with blowing louvers and blowing actuators similar to the left and right outlets 44 and 46. Can do. The ECU 26 can also control the driving of the center register blowing louver.

  In this case, the air flow rate of the left center register is controlled in accordance with the air flow rate of the left air outlet 44 which is a side register, and the air flow rate of the right center register is controlled by the right air outlet 46 which is a side register. It can also be controlled according to the air volume. For example, when the air volume at the left outlet 44 is Hi (or X), the air volume at the left center register is also Hi (or X), and the air volume at the right outlet 46 is X, that is, auto (or Hi). In this case, the blowout air volume of the left center register can also be set to X (or Hi).

  Next, two examples of the flow of cool air in the passenger compartment will be described with reference to FIGS. First, as shown in FIG. 7, in the vehicle 12, when the occupant 98 is seated only in the right front seat 20 as the driver's seat and there is solar radiation, the ECU 26 performs the first matrix data of FIG. Therefore, the data with solar radiation (data at position α in FIG. 4) that is not seated in all of the rear seats 64 is used. In this case, as can be seen from FIG. 4, the left air inlet 30 is used and opened, and the right air inlet 32 is closed. As for the left and right outlets 44 and 46, the amount of the blown air becomes large on the driver's seat side, that is, the right side, and the amount of the blown air becomes auto on the passenger seat side, that is, the left side. In this case, the flow of cool air in the direction of arrow β in FIG. In this case, a large amount of cool air hits the occupant 98 who rides in the right front seat 20, that is, the driver, and a large amount of cool air can be efficiently taken into the left inlet 30.

  Further, as shown in FIG. 8, in the vehicle 12, when the occupant 98 is seated only on the right front seat 20 as the driver's seat and the left of the rear seat 64 and there is no solar radiation, the ECU 26 In the first matrix data in FIG. 4, data without solar radiation (data at the γ position in FIG. 4) sitting only on the left side of the rear seat 64 is used. In this case, as can be seen from FIG. 4, the right intake port 32 is used and opened, and the left intake port 30 is closed. As for the left and right outlets 44 and 46, the blown air volume is large on the passenger seat side, that is, the left side, and the blown air volume is auto on the driver seat side, that is, the right side. In this case, the flow of cool air in the direction of arrow δ in FIG. In this case, the driver 98 who is the driver and the passenger 98 on the left side of the rear seat 64 do not receive a lot of cool air, and can efficiently take in a lot of cool air into the right air inlet 32.

  According to such a battery cooling system 10, from the occupant seating information and solar radiation information, an appropriate open / closed state of the left and right intake ports 30, 32, the control side outlet 46 (or 44), and the control side outlet 46 (or 44) can be set, for example, by increasing the air volume of the control side outlet 46 (or 44), the intake air temperature in the battery duct 62 is kept low regardless of the amount of solar radiation, and the battery 14 The temperature of the cooling air for cooling the battery 14 can be kept low, and the battery 14 can be efficiently cooled.

  Further, when the solar radiation is high, it is possible to positively apply a lot of cool air to the occupant 98, while it is possible to prevent the occupant 98 from receiving a lot of cold air when the solar radiation is low. For this reason, the air conditioning comfort of the passenger 98 is not impaired. In addition, when the occupant 98 is seated in the rear seat 64, it is possible to reduce the case where the intake port 30 (or 32) near the seating position of the occupant 98 in the rear seat 64 is opened. For this reason, it is possible to eliminate or reduce the discomfort caused by the noise of the air blowing for cooling the battery 14 and the battery air blowing fan 76 from all the passengers 98. In addition, since the left and right intake ports 30 and 32 are provided at two left and right end portions on the side of the vehicle body of the rear seat 64, the air for cooling the battery 14 and the battery air blowing fan for all the passengers 98 are provided. The discomfort due to the noise of 76 can be further reduced.

  Further, when three passengers are seated in the rear seat 64, as can be seen from the matrix data in FIGS. 4 to 6, both the left and right intake ports 30, 32 are used and are in the open state. For this reason, the cold air is not excessively concentrated on one passenger such as the passenger in the center of the rear seat 64. For this reason, it is possible to reduce discomfort caused by taking in cold air from the intake ports 30 and 32 for all the occupants. In particular, discomfort for the passenger in the center of the rear seat 64 can be effectively reduced. On the other hand, in the case of the battery cooling device described in Patent Document 2 described above, when three people are seated in the rear seat, the vehicle is placed only in the one intake port on the rear side of one passenger at the center or right. Since indoor air is taken in, there is room for improvement in terms of not only the presence of an air intake near the ears of one occupant but also the increase in blowing sound due to air intake, which reduces discomfort. According to the present embodiment, such points to be improved can be improved.

  In the battery cooling system 10 according to the present embodiment, as shown in FIGS. 1 and 3, the left and right intake ducts 72 and 74 are connected to the left and right intake ports 30 and 32, respectively. While providing each temperature sensor 100, ECU26 can also be made to have blowing air volume forced increase means 102 (FIG. 3). The forced air volume increasing means 102 is used when the air-conditioner unit 24 is driven and the intake air temperature detected by one or both of the left and right intake air temperature sensors 100 exceeds a preset threshold temperature. Regardless of the seating information and solar radiation information, that is, without using the above matrix data, the left and right blowing louvers 52, 54 are arranged so that the amount of blowing air blown from one or both of the left and right blowing ports 44, 46 increases. Control.

  The forced air volume forcing increase means 102 is used when the intake air temperature detected by one or both of the left and right intake air temperature sensors 100 exceeds a preset threshold temperature even when the air conditioner unit 24 is stopped. The left and right blowing louvers 52, 54 are controlled so that the air conditioner unit 24 is forcibly driven in a cooling state, and the amount of blowing air blown from one or both of the left and right blowing ports 44, 46 is increased. It can also be controlled.

  In the above embodiment, the air conditioner battery cooling ECU 26 can be configured by a single ECU, but can also be configured by a combination of a plurality of ECUs. For example, the control unit provided in the vehicle power storage body cooling system of the present invention can be configured by an air conditioner ECU that controls the air conditioner unit 24 and a battery cooling ECU that controls the battery cooling unit 28.

  In the above description, the ECU 26 controls the amount of air blown from the left and right outlets 44 and 46 by changing the direction of the left and right outlet louvers 52 and 54. However, as shown in FIGS. 1 and 3, switching doors are provided in the vicinity of the branching portions of the branching duct portions 48 and 50 of the air conditioner unit 24, and the ECU 26 controls the actuator that displaces the switching doors. The opening degree of the branch door by the door can be controlled stepwise or steplessly between fully open and fully closed. Also in this case, the ECU 26 can control the amount of air blown from the air outlet 46 (or 44) which is the control side air outlet. In the present embodiment, the ECU 26 as the control unit uses the matrix data based on the occupant seating information and the solar radiation information, and the open / closed states of the left and right intake ports 30, 32 and the left and right outlets 44, The flow rate of the cool air in the passenger compartment can be changed by controlling the blowout air volume of the control side air outlet 44 (or 46) selected from 46, but the present invention is not limited to this. For example, the ECU 26 does not use the above matrix data, but uses, for example, other stored information or data, based on the occupant seating information and the solar radiation information, and the open / closed states of the left and right intake ports 30 and 32 Further, the flow rate of the cool air in the passenger compartment can be changed by controlling the blow-out air volume at the control-side blow-out port 44 (or 46) selected from the left and right blow-out ports 44 and 46.

  DESCRIPTION OF SYMBOLS 10 Battery cooling system, 12 Vehicle, 14 Battery, 16 Front wheel, 18 Rear wheel, 20, 22 Front seat, 24 Air-conditioner unit, 26 Air-conditioner battery cooling ECU, 28 Battery cooling unit, 30, 32 Inlet, 34 Evaporator (evaporator) ), 36 Refrigerant circulation section, 38 Air conditioner duct, 40 Air conditioner blower fan, 42 Outside air inlet, 44, 46 outlet, 48, 50 Branch duct section, 52, 54 Outlet louver, 56, 58 Outlet actuator, 60 Battery storage chamber , 62 Battery duct, 64 Rear seat, 66 Seat surface, 68 Seat side part, 70 Seat back, 72, 74 Branch duct part, 76 Battery blower fan, 78, 80 Intake louver, 82, 84 Intake actuator, 86 Outlet actuator control Stage, 88 an intake actuator control means, 90 louver integrated control unit, 92 seat sensor 94 upper panel, 96 solar radiation sensor, 98 passenger, 100 an intake air temperature sensor, 102 blowoff airflow force increasing means.

Claims (5)

A power storage unit cooling system for a vehicle that cools a power storage unit mounted on the vehicle by taking air in the vehicle interior from an air inlet provided at the rear of the vehicle,
The air intakes are the left and right air intakes provided at the left and right end portions on the side of the vehicle body side of the rear seat,
A control unit that controls the open / closed state of the left and right intake ports and the amount of air blown from one or both of the left and right outlets provided at two positions apart on the left and right sides of the front seat front side of the vehicle interior air conditioner; Control side outlets selected from left and right inlet opening / closing states and left and right outlets based on occupant seating information, which is seating information for the front and rear seats, and solar radiation information indicating the level of solar radiation A power storage unit cooling system for a vehicle, comprising a control unit that controls the amount of blown air flow and changes a flow of cool air in the passenger compartment. The electric storage battery cooling system for a vehicle according to claim 1,
Left and right blowout louvers that are provided around the left and right blowout openings respectively, and that can adjust the direction of the wind blown out from the left and right blowout openings,
It has a left and right blowing actuator that changes the direction of the left and right blowing louvers,
The power storage unit cooling system for vehicles, wherein the control unit includes a blowing actuator control unit that controls driving of the left and right blowing actuators. In the vehicle electrical storage body cooling system according to claim 1 or 2,
Left and right air intake louvers that are provided in the left and right air intake peripheral areas, respectively, and that can switch the opening and closing of the left and right air intake ports,
With left and right intake actuator that switches opening and closing of the left and right intake louvers,
The power storage body cooling system for vehicles, wherein the control unit includes intake actuator control means for controlling driving of the left and right intake actuators. The power storage unit cooling system for a vehicle according to claim 2,
Left and right air intake louvers that are provided in the left and right air intake peripheral areas, respectively, and that can switch the opening and closing of the left and right air intake ports,
With left and right intake actuator that switches opening and closing of the left and right intake louvers,
The control unit integrates and controls the intake actuator control means for controlling the drive of the left and right intake actuators, the blowout actuator control means and the intake actuator control means, and controls the direction of the left and right blowout louvers and the left and right intake louvers in conjunction with each other. And a power storage unit cooling system for a vehicle. The electric storage body cooling system for a vehicle according to any one of claims 1 to 4,
With left and right intake temperature sensors provided in the left and right ducts connected to the left and right intake ports,
When the intake air temperature detected by one or both of the left and right intake air temperature sensors exceeds a preset threshold temperature, the control unit controls the left and right air outlets regardless of the occupant seating information and the solar radiation information. A power storage body cooling system for a vehicle, comprising: a forced blow air volume forcibly increasing means for controlling the blow air volume blown out from one or both.

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