CN108376808B - Automobile battery temperature adjusting method - Google Patents
Automobile battery temperature adjusting method Download PDFInfo
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- CN108376808B CN108376808B CN201810066837.4A CN201810066837A CN108376808B CN 108376808 B CN108376808 B CN 108376808B CN 201810066837 A CN201810066837 A CN 201810066837A CN 108376808 B CN108376808 B CN 108376808B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/613—Cooling or keeping cold
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/615—Heating or keeping warm
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
- H01M10/625—Vehicles
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6567—Liquids
- H01M10/6568—Liquids characterised by flow circuits, e.g. loops, located externally to the cells or cell casings
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6569—Fluids undergoing a liquid-gas phase change or transition, e.g. evaporation or condensation
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/66—Heat-exchange relationships between the cells and other systems, e.g. central heating systems or fuel cells
- H01M10/663—Heat-exchange relationships between the cells and other systems, e.g. central heating systems or fuel cells the system being an air-conditioner or an engine
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Air-Conditioning For Vehicles (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention discloses an automobile battery temperature adjusting device which comprises a first circulating pipeline, a second circulating pipeline, a heat exchanger, an air conditioning expansion valve, a condenser, an air conditioning compressor, an evaporator, a water pump, a battery pack, a heater, a radiator water tank, a three-way electromagnetic valve, a battery temperature sensor, a vehicle controller, an air conditioning controller and a battery controller.
Description
Technical Field
The invention relates to the technical field of new energy automobiles, in particular to an automobile battery temperature adjusting method.
Background
With the reform and development of the automobile industry, the new electric energy automobile is gradually accepted by people due to the economy and environmental protection.
The power source of the electric new energy automobile is from a battery pack, in particular to a lithium battery power pack. The lithium battery with large capacity and high energy ratio can generate chemical reaction heat and resistance heat in the charging and discharging process, and the battery temperature is possibly overhigh to influence the service life and the safety of the battery. Meanwhile, the lithium battery has a problem of safety that the discharge power and efficiency are reduced at a low temperature, and the low-temperature charging of the lithium battery, particularly the charging at a temperature of 0 ℃ or lower, is not negligible. Therefore, the performance and the service life of the lithium battery are closely related to the temperature of the lithium battery, and the temperature of the lithium battery is required to be reduced and controlled within a reasonable range.
In the prior art, the power battery pack begins to adopt the liquid cooling system to realize the cooling and heating of battery to make the battery pack work under the optimum temperature environment, however, the general function of the heat management system of the liquid cooling of the existing battery pack is less, the strategy of the heat management air conditioner is simpler and easier, usually, the heating or cooling switch is opened and closed simply, and the self heat energy of the heat management system can not be fully utilized, which can cause the waste of heat energy.
Disclosure of Invention
Therefore, a method for adjusting the temperature of the automobile battery is needed to be provided, so that the problems that in the prior art, a battery pack liquid cooling heat management system has fewer general functions, a heat management air-conditioning strategy is simpler, the heat energy of the heat management system cannot be fully utilized, and the heat energy is wasted are solved.
In order to achieve the above object, the inventor provides a method for regulating the temperature of an automobile battery, comprising a heat exchanger, an air conditioning expansion valve, a condenser, an air conditioning compressor, an evaporator, a water pump, a battery pack, a heater, a radiator tank, a three-way solenoid valve, a battery temperature sensor, a vehicle controller, an air conditioning controller, a battery controller, and an active cooling mode, a passive cooling mode, an active heating mode, and a passive heating mode;
the condenser and the air conditioner compressor are sequentially connected to form a first circulating pipeline;
one end of the evaporator is connected to a first circulating pipeline between the air-conditioning compressor and the heat exchanger through a pipeline, and the other end of the evaporator is connected to the first circulating pipeline between the condenser and the heat exchanger through an air-conditioning expansion valve;
the water pump, the battery pack and the heater are sequentially connected to form a second circulating pipeline;
the first circulation pipeline and the second circulation pipeline are connected to the heat exchanger;
the battery temperature sensor is arranged on the battery pack;
one end of the radiator water tank is connected to a second circulating pipeline between the heat exchanger and the water pump through a three-way electromagnetic valve, and the other end of the radiator water tank is connected to the second circulating pipeline between the heat exchanger and the heater through a pipeline;
the air conditioner controller is electrically connected with the evaporator and used for controlling the work of the evaporator, the battery controller is respectively electrically connected with the three-way electromagnetic valve, the water pump and the battery temperature sensor and used for controlling the work of the three-way electromagnetic valve and the water pump and receiving the data of the battery temperature sensor, and the vehicle controller is respectively in communication connection with the battery controller and the air conditioner controller and used for exchanging and processing control signals and is electrically connected with the air conditioner expansion valve.
In the active cooling mode, the battery controller starts a water pump and communicates the battery pack and the heat exchanger through a three-way electromagnetic valve, the air conditioner controller starts the evaporator, and the vehicle controller starts the condenser to cool the battery;
in the passive cooling mode, the battery controller starts the water pump and is communicated with the radiator water tank through the three-way electromagnetic valve, and the battery is cooled through the radiator water tank
In the active heating mode, the battery controller starts the water pump, communicates the battery pack with the heat exchanger through the three-way electromagnetic valve, and starts the heater to heat the battery.
In the passive heating mode, the battery controller starts the water pump and communicates the battery pack with the radiator water tank through the three-way electromagnetic valve, the heater is not started, and the battery is heated through the waste heat of the cooling liquid in the radiator water tank.
Further, still include the parallelly connected cooling pipeline of battery, the parallelly connected cooling pipeline's of battery quantity is more than two, and the parallelly connected cooling pipeline's of battery one end is connected with second circulation pipeline, and the other end is connected with the group battery.
Further, the water circulation device also comprises a water temperature sensor, and the water temperature sensor is arranged on the second circulation pipeline between the battery pack and the heater.
Furthermore, the battery pack circulating system further comprises a water cooling plate, the water cooling plate is arranged on the battery pack, and the second circulating pipeline is in contact with the battery pack through the water cooling plate.
And the pressure signal sensor is arranged on a first circulating pipeline between the air conditioner compressor and the condenser and is electrically connected with the whole vehicle control module.
And the first circulating pipeline expansion valve is arranged on the first circulating pipeline between the heat exchanger and the condenser and is electrically connected with the whole vehicle control module.
Further, still include the fan, the fan sets up in one side of evaporimeter to be connected with air conditioner controller electricity.
Further, the heater is a PTC heater.
Different from the prior art, the technical scheme has the following advantages: through UNICOM vehicle controller, air conditioner controller and battery controller to detect respectively or control and set up in two circulation road vehicle parts, through the collaborative work between the different vehicle parts and integrate into different temperature regulation modes, realized carrying out temperature control to battery package and temperature regulation pipeline, the temperature difference of the coolant liquid in the make full use of pipeline and battery package carries out temperature adjustment to the battery package, has improved energy utilization.
Drawings
Fig. 1 is a schematic connection structure diagram of a method for adjusting the temperature of an automobile battery according to an embodiment of the invention.
Description of reference numerals:
101. a first circulation line; 102. a condenser; 103. an air conditioning compressor;
104. an evaporator; 105. an air conditioning expansion valve; 106. a pressure signal sensor;
107. a first circulation line expansion valve; 108. a fan;
201. a second circulation line; 202. a water pump; 203. a water temperature sensor;
204. a heater; 205. a radiator tank; 206. a three-way electromagnetic valve;
207. the batteries are connected with a cooling pipeline in parallel;
301. a heat exchanger;
401. a vehicle controller;
501. an air conditioner controller;
601. a battery controller;
701. a battery pack; 702. a battery temperature sensor; 703. and (5) a water-cooling plate.
Detailed Description
To explain technical contents, structural features, and objects and effects of the technical solutions in detail, the following detailed description is given with reference to the accompanying drawings in conjunction with the embodiments.
Referring to fig. 1, the present embodiment discloses a method for adjusting the temperature of an automotive battery, which includes a first circulation pipeline 101, a second circulation pipeline 201, a heat exchanger 301, a vehicle controller 401, the air conditioner comprises an air conditioner controller 501, a battery controller 601 and a battery pack 701, two groups of water inlets and water outlets are formed in a heat exchanger 301, a first circulation pipeline 101 and a second circulation pipeline 201 are respectively connected with one group of water inlets and water outlets on the heat exchanger 301, a condenser 102 and an air conditioner compressor 103 are sequentially arranged on the first circulation pipeline 101, one end of an evaporator 104 is connected to the first circulation pipeline 101 between the condenser 102 and the heat exchanger 301 through an air conditioner expansion valve 105, the other end of the evaporator is connected to the first circulation pipeline 101 between the air conditioner compressor 103 and the heat exchanger 301, the condenser 102 and the air conditioner expansion valve 105 are electrically connected with a vehicle controller 401, and the air conditioner controller 501 is electrically connected with the evaporator 104. The water pump 202 and the heater 204 are sequentially arranged on the second circulation pipeline 201, the battery pack 701 is arranged on the second circulation pipeline 201 between the water pump 202 and the heater 204, the battery temperature sensor 702 is arranged on the battery pack 701, one end of the radiator tank 205 is connected to the second circulation pipeline 201 between the heat exchanger 301 and the water pump 202 through the three-way electromagnetic valve 206, the other end of the radiator tank 205 is connected to the second circulation pipeline 201 between the battery pack 701 and the heater 204, the battery controller 601 is respectively electrically connected with the water pump 202, the water temperature sensor 203, the three-way electromagnetic valve 206 and the battery temperature sensor 702, and the air conditioner controller 501 and the battery controller 601 are respectively in communication connection with the vehicle controller 401.
According to the above structure, in the operation process of the automobile battery temperature adjusting device, the battery temperature sensor and the water temperature sensor respectively detect the temperatures of the cooling liquid in the battery pack and the second circulation line, when the vehicle controller detects that the air conditioner is not started in the charging state or the driving state of the vehicle, and the highest temperature of the battery is greater than or equal to the starting set value of the active cooling function, the active cooling function is started (the set value may be any value within the range of 25 ℃ to 50 ℃, in this embodiment, the set value is 35 ℃), the battery controller sends signals to the water pump and the three-way electromagnetic valve to control the water pump to operate (in this embodiment, the operating speed of the water pump in the active cooling function may be 70% of the rated speed, or any value above 50%) and the cooling liquid in the second circulation line is communicated with the heat exchanger under the control of the three-way electromagnetic valve, and the battery controller sends a signal to the vehicle control unit, the vehicle control unit sends a signal to the air-conditioning compressor to start working, the refrigerant in the first circulating pipeline passes through the air-conditioning compressor and the condenser, passes through the first circulating pipeline expansion valve and then flows through the heat exchanger to cool the cooling liquid of the second circulating pipeline passing through the heat exchanger, and the cooled cooling liquid in the second circulating pipeline flows to the battery pack to be cooled. The active cooling function is turned off when the battery temperature sensor detects a temperature drop and reaches a set value for stopping operation (the set value for stopping operation of the water pump may be in the range of 20 c to 35 c and lower than the set value for starting operation, in this embodiment 30 c). When the vehicle is in a running state and the air conditioner control unit detects that the air conditioner is in an operating state through a signal sent by the vehicle control module or the operating state of the evaporator, the starting set value of the active cooling function can be reduced (the set value can be any value between 22 ℃ and 47 ℃, in the embodiment, 32 ℃), and the stopping set value is kept unchanged.
When a vehicle controller detects that a vehicle is in a charging state or a driving state, and the highest temperature of a battery is greater than or equal to a starting set value of a passive cooling function, the passive cooling function is started (the set value can be any value within a range from 25 ℃ to 50 ℃ and is lower than the starting set value of the active cooling function, in the embodiment, the set value is 28 ℃), the battery controller sends signals to the water pump and the three-way electromagnetic valve to control the water pump to work (the working rotating speed of the water pump in the embodiment can be 50% of the rated rotating speed and can also be any value above 30% of the rated rotating speed but needs to be lower than the working rotating speed of the water pump with the active cooling function), the three-way electromagnetic valve communicates the second circulating pipeline with the radiator water tank, and the radiator water tank provides cooling liquid for the second circulating pipeline and flows to the battery pack under. When the battery temperature sensor detects that the temperature drops and reaches a set value for stopping working (the set value for stopping working of the water pump can be in the range of 20 ℃ to 45 ℃ and is lower than the set value for starting, in this embodiment, 20 ℃), the battery control device sends a signal to the water pump, the water pump stops working, and the passive cooling function is turned off.
When a vehicle controller detects that the vehicle is in a charging state or a driving state and the lowest temperature of the battery is lower than or equal to a starting set value of the active heating function, the active heating function is started (the set value can be any value between 2 ℃ and 10 ℃, in this embodiment, 5 ℃), the heater is started, the battery controller drives the water pump and the three-way electromagnetic valve to work (in this embodiment, the working rotating speed of the water pump in the active heating function can be 70% of the rated rotating speed, or any value above 50% of the rated rotating speed, the heater can be controlled by any one of a whole vehicle controller, a battery controller or an air conditioner controller), the three-way electromagnetic valve is communicated with the battery and the heat exchanger, the water pump drives the liquid in the second circulation pipeline to flow to the heater for heating, the heated liquid flows to the battery pack, and the temperature of the battery pack is, when the battery temperature sensor detects that the temperature rises and reaches a set value for stopping working (the set value for stopping working can be in the range of 20 ℃ to 30 ℃ and is lower than the set value for starting working, in the embodiment, 25 ℃), the working of the water pump and the heater is stopped, and the active heating function is closed.
When a vehicle controller detects that the vehicle is in a charging state or a driving state and the lowest temperature of the battery is lower than or equal to a starting set value of a passive heating function, starting the passive heating function (the set value can be any value between 2 ℃ and 10 ℃ and is higher than the starting set value of the active heating function and is 9 ℃ in the embodiment), not starting the heater, driving the water pump and the three-way electromagnetic valve to work by the battery controller (in the embodiment, the working rotating speed of the water pump in the passive heating function can be 50% of the rated rotating speed and can also be any value above 50%, and the heater can be controlled by any one of a vehicle controller, a battery controller or an air conditioner controller), communicating the battery pack, the water pump and the radiator water tank, transmitting the residual heat of the cooling liquid to the battery for heating treatment by the radiator water tank, and when the temperature of the battery reaches a stopping set value of the passive heating function (the stopping set value can be 20 ℃ to 10 Within the range of 30 ℃ and lower than the starting set value, in the embodiment, 25 ℃), stopping the work of the water pump and stopping the passive heating function.
When the vehicle controller detects that the vehicle is in a charging state or a running state and the battery temperature is in a normal state, the starting and stopping time of the water pump can be controlled by any one of the vehicle controller, the battery controller or the air conditioner controller, signals are transmitted to the water pump and the three-way electromagnetic valve by the battery controller, the three-way electromagnetic valve is communicated with the battery pack and the heat exchanger, the flowing of liquid in the first circulating pipeline and the second circulating pipeline is kept, and the liquid is continuously subjected to heat exchange with the battery pack.
In the above embodiment, please refer to fig. 1, the battery pack further includes a battery parallel cooling pipeline 207, two ends of the battery parallel cooling pipeline 207 are respectively connected to the second circulation pipeline 201 and the battery panel 701, the number of the battery parallel cooling pipeline is more than two, and the parallel cooling pipeline is arranged on the second circulation pipeline, so that the liquid in the second circulation pipeline is conveniently distributed to each battery in the battery pack through the parallel cooling pipeline, and the liquid is respectively provided for the plurality of groups of batteries in the battery pack, thereby avoiding the large temperature difference generated on the whole battery pack and influencing the service life or normal use of the battery pack.
In the above embodiment, referring to fig. 1, the battery pack further includes two or more water-cooling plates 703, the two or more water-cooling plates 703 are mounted on the battery pack 701 and are respectively connected to the battery parallel cooling pipelines 207, and the water-cooling plates are disposed to facilitate liquid in the circulation pipeline to be distributed to the plate surfaces of the water-cooling plates to be fully contacted with the batteries (in this embodiment, the water-cooling plates are formed by a plurality of cooling pipes disposed in parallel on the same plane).
In the above embodiment, please refer to fig. 1, the system further includes a water temperature sensor 203, the water temperature sensor 203 is disposed on the second circulation pipeline 201 between the battery pack 701 and the heater 204, and electrically connected to the battery controller 601, when the vehicle controller detects that the vehicle is in a charging state or a driving state, the battery controller respectively collects the temperatures of the battery temperature sensor and the water temperature sensor, and when the battery temperature is lower than or equal to a start setting value of the active heating function and a difference between the battery temperature sensor and the water temperature sensor reaches the start setting value, the active heating function is started (in this embodiment, when the temperature difference between the temperature sensor and the water temperature sensor is less than or equal to 9 ℃, the temperature difference may be any value between 5 ℃ and 15 ℃). When the temperature of the battery is lower than or equal to the starting set value of the passive heating function and the difference between the battery temperature sensor and the water temperature sensor reaches the starting set value, the passive heating function is started (in this embodiment, when the temperature difference between the temperature sensor and the water temperature sensor is greater than or equal to 10 ℃, the temperature difference may be any value between 5 ℃ and 20 ℃). When the temperature of the battery is higher than or equal to the start set value of the passive cooling function and the difference between the battery temperature sensor and the water temperature sensor reaches the start set value, the passive cooling function is started (in this embodiment, when the temperature difference between the temperature sensor and the water temperature sensor is greater than or equal to 5 ℃, it may be any value between 3 ℃ and 8 ℃). Through set up the water temperature sensor on the second circulating line, can detect the difference between the temperature of the temperature in the circulating line and the battery package temperature before heating or cooling function uses, when detecting that the temperature difference between the two is less, turn on heater or air conditioner again and heat or cool off, further improve the heat utilization ratio of the interior liquid of circulating line, improve energy-concerving and environment-protective effect, and when the water temperature sensor detects that the temperature is higher than 50 ℃, close the heater, prevent that the interior high temperature of circulating line from causing the battery to damage (set for the maximum value to be 50 ℃ in this embodiment, also can be 35 ℃ to the arbitrary value between 55 ℃).
In the above embodiment, please refer to fig. 1, the controller further includes a pressure signal sensor 106, the pressure signal sensor 106 is disposed on the first circulation pipeline 101 between the condenser 102 and the air conditioner compressor 103, and the pressure signal sensor transmits the pressure value of the refrigerant in the air conditioner pipeline to the vehicle controller, so that the vehicle controller controls the rotation speed of the air conditioner compressor.
In the above embodiment, please refer to fig. 1, further comprising a first circulation pipeline expansion valve 107, wherein the first circulation pipeline expansion valve 107 is disposed on the first circulation pipeline 101 between the heat exchanger 301 and the condenser 102.
In the above embodiment, please refer to fig. 1, further comprising a fan 108 disposed at one side of the evaporator 104.
In the above embodiment, the heater 204 is a PTC heater.
In the embodiment, the water pump is a speed-adjustable water pump, the PWM signal is used for speed adjustment, and when the vehicle controller receives that the vehicle speed is less than 20km/h, the battery controller sends a signal to the water pump to reduce the rotating speed of the water pump to be less than 25% of the rated power, so that the noise of the water pump is reduced.
In the above embodiment, the vehicle controller may be a VCU or an ECU, the battery controller may be a BMS, and the air conditioner controller is an automotive air conditioner controller.
In some embodiments, before the battery controller controls the three-way electromagnetic valve to switch the flow path, a control signal is sent to the water pump in advance to reduce the output power of the water pump to be below 25% of the rated power, so that the three-way electromagnetic valve is prevented from being damaged in the switching process due to excessive water in the second circulation pipeline.
It should be noted that, although the above embodiments have been described herein, the invention is not limited thereto. Therefore, based on the innovative concepts of the present invention, the technical solutions of the present invention can be directly or indirectly applied to other related technical fields by making changes and modifications to the embodiments described herein, or by using equivalent structures or equivalent processes performed in the content of the present specification and the attached drawings, which are included in the scope of the present invention.
Claims (8)
1. The automobile battery temperature adjusting method is characterized by comprising a heat exchanger, an air conditioner expansion valve, a condenser, an air conditioner compressor, an evaporator, a water pump, a battery pack, a heater, a radiator water tank, a three-way electromagnetic valve, a battery temperature sensor, a vehicle controller, an air conditioner controller, a battery controller, an active cooling mode, a passive cooling mode, an active heating mode and a passive heating mode;
the condenser and the air conditioner compressor are sequentially connected to form a first circulating pipeline;
one end of the evaporator is connected to a first circulating pipeline between the air-conditioning compressor and the heat exchanger through a pipeline, and the other end of the evaporator is connected to the first circulating pipeline between the condenser and the heat exchanger through an air-conditioning expansion valve;
the water pump, the battery pack and the heater are sequentially connected to form a second circulating pipeline;
the first circulation pipeline and the second circulation pipeline are connected to the heat exchanger;
the battery temperature sensor is arranged on the battery pack;
one end of the radiator water tank is connected to a second circulating pipeline between the heat exchanger and the water pump through a three-way electromagnetic valve, and the other end of the radiator water tank is connected to the second circulating pipeline between the heat exchanger and the heater through a pipeline;
the vehicle controller is respectively in communication connection with the battery controller and the air conditioner controller, is used for exchanging and processing control signals and is electrically connected with the air conditioner expansion valve;
in the active cooling mode, the battery controller starts a water pump and communicates the battery pack and the heat exchanger through a three-way electromagnetic valve, the air conditioner controller starts the evaporator, and the vehicle controller starts the condenser to cool the battery;
in the passive cooling mode, the battery controller starts a water pump and is communicated with a radiator water tank through a three-way electromagnetic valve, and the battery is cooled through the radiator water tank;
in the active heating mode, the battery controller starts the water pump, communicates the battery pack with the heat exchanger through the three-way electromagnetic valve, and starts the heater to heat the battery;
in the passive heating mode, the battery controller starts the water pump and communicates the battery pack with the radiator water tank through the three-way electromagnetic valve, the heater is not started, and the battery is heated through the waste heat of the cooling liquid in the radiator water tank.
2. The method for adjusting the temperature of the battery of the vehicle according to claim 1, further comprising a plurality of cooling pipes connected in parallel to the battery, wherein the number of the cooling pipes connected in parallel to the battery is two or more, and one end of the cooling pipe connected in parallel to the battery is connected to the second circulation pipe, and the other end of the cooling pipe connected in parallel to the battery is connected to the battery pack.
3. The vehicle battery temperature adjustment method according to claim 1, further comprising a water temperature sensor provided on the second circulation line between the battery pack and the heater.
4. The method for adjusting the temperature of an automotive battery according to claim 1, further comprising a water-cooling plate provided on the battery pack, wherein the second circulation line is in contact with the battery pack through the water-cooling plate.
5. The method for regulating the temperature of an automobile battery according to claim 1, further comprising a pressure signal sensor, wherein the pressure signal sensor is arranged on the first circulation pipeline between the air conditioner compressor and the condenser and is electrically connected with the whole automobile control module.
6. The method of claim 1, further comprising a first circulation line expansion valve disposed on the first circulation line between the heat exchanger and the condenser and electrically connected to the vehicle control module.
7. The method of claim 1, further comprising a fan disposed at one side of the evaporator and electrically connected to the air conditioner controller.
8. The method for adjusting the temperature of an automotive battery as claimed in claim 1, characterized in that the heater is a PTC heater.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810066837.4A CN108376808B (en) | 2018-01-24 | 2018-01-24 | Automobile battery temperature adjusting method |
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| CN201810066837.4A CN108376808B (en) | 2018-01-24 | 2018-01-24 | Automobile battery temperature adjusting method |
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| CN108376808A CN108376808A (en) | 2018-08-07 |
| CN108376808B true CN108376808B (en) | 2020-07-28 |
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| CN109728380B (en) * | 2018-12-10 | 2020-11-06 | 厦门金龙旅行车有限公司 | New energy vehicle and battery cooling control system, method and device thereof |
| JP7232638B2 (en) * | 2018-12-20 | 2023-03-03 | 株式会社Subaru | Temperature control system for electric vehicles |
| CN111376692B (en) * | 2018-12-29 | 2022-06-07 | 宇通客车股份有限公司 | Vehicle, multi-branch temperature regulation liquid cooling power supply system and control method thereof |
| CN109411849B (en) * | 2019-01-23 | 2019-04-16 | 常州江苏大学工程技术研究院 | Power battery pack cooling and heating system and the method for using the system |
| CN110048189B (en) * | 2019-04-24 | 2020-07-17 | 中通客车控股股份有限公司 | Liquid-cooled battery thermal management system and control method thereof |
| CN110212270A (en) * | 2019-05-29 | 2019-09-06 | 福建省汽车工业集团云度新能源汽车股份有限公司 | A kind of battery pack pre-heating mean and system |
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