CN109599612A - The temperature control method and humidity control system of on-vehicle battery - Google Patents

The temperature control method and humidity control system of on-vehicle battery Download PDF

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Publication number
CN109599612A
CN109599612A CN201710922874.6A CN201710922874A CN109599612A CN 109599612 A CN109599612 A CN 109599612A CN 201710922874 A CN201710922874 A CN 201710922874A CN 109599612 A CN109599612 A CN 109599612A
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China
Prior art keywords
battery
temperature
heat exchanger
thermal management
balanced
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CN201710922874.6A
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CN109599612B (en
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伍星驰
谈际刚
王洪军
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BYD Co Ltd
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BYD Co Ltd
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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
    • 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
    • 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
    • H01M10/617—Types of temperature control for achieving uniformity or desired distribution of temperature
    • 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
    • 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
    • H01M10/63—Control systems
    • 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
    • H01M10/63—Control systems
    • H01M10/633—Control systems characterised by algorithms, flow charts, software details or the like
    • 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
    • H01M10/6561—Gases
    • H01M10/6563—Gases with forced flow, e.g. by blowers
    • 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
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2220/00—Batteries for particular applications
    • H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
    • 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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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Automation & Control Theory (AREA)
  • Secondary Cells (AREA)

Abstract

The invention discloses a kind of temperature control method of on-vehicle battery and humidity control system, on-vehicle battery humidity control system includes the multiple battery thermal management modules being respectively connected with multiple batteries；The multiple heat exchangers being connected respectively with multiple battery thermal management modules；Balanced heat exchanger, wherein a part in multiple battery thermal management modules and the first pipeline in balanced heat exchanger are connected, another part in multiple battery thermal management modules and the second pipeline in balanced heat exchanger；Controller for obtaining the temperature of multiple batteries, and judges whether the temperature difference between multiple batteries is greater than preset temperature threshold, when the temperature difference between multiple batteries is greater than preset temperature threshold, is carried out by temperature of the balanced heat exchanger to multiple batteries balanced.The system can be carried out by temperature of the heat exchanger to multiple batteries, so as to improve the cycle life of battery when the temperature difference between multiple batteries is larger as a result,.

Description

The temperature control method and humidity control system of on-vehicle battery
Technical field
The present invention relates to automobile technical field, in particular to a kind of temperature control method of on-vehicle battery, one kind are non-provisional Property computer readable storage medium and a kind of humidity control system of on-vehicle battery.
Background technique
Currently, on-vehicle battery system may include multiple batteries in electric car, due to position between each battery Difference, or each battery is supplied to due to the humidity control system of battery plus hot/cold power it is uneven, lead to each electricity There are larger differences for temperature between pond, and the temperature consistency of battery is poor, and then will lead to battery cycle life reduction.
Summary of the invention
The present invention is directed to solve at least some of the technical problems in related technologies.
For this purpose, the first purpose of this invention is to propose a kind of humidity control system of on-vehicle battery, which can be with When temperature difference between multiple batteries is larger, carried out by temperature of the heat exchanger to multiple batteries, so as to improve electricity The cycle life in pond.
Second object of the present invention is to propose a kind of humidity control system of on-vehicle battery.
Third object of the present invention is to propose a kind of non-transitorycomputer readable storage medium.
In order to achieve the above objectives, first aspect present invention embodiment proposes a kind of humidity control system of on-vehicle battery, It include: the multiple battery thermal management modules being respectively connected with multiple batteries；It is connected respectively with the multiple battery thermal management module Multiple heat exchangers；The balanced heat exchange connected and in parallel with the multiple heat exchanger with the multiple battery thermal management module Device, wherein a part in the multiple battery thermal management module is connected with the first pipeline in the balanced heat exchanger, described Another part in multiple battery thermal management modules and the second pipeline in the balanced heat exchanger；Controller, the controller For obtaining the temperature of the multiple battery, and judge whether the temperature difference between the multiple battery is greater than preset temperature threshold Value, when the temperature difference between the multiple battery is greater than preset temperature threshold, by the balanced heat exchanger to the multiple The temperature of battery carries out balanced.
The humidity control system of on-vehicle battery according to an embodiment of the present invention obtains the temperature of multiple batteries by controller Degree, and judge whether the temperature difference between multiple batteries is greater than preset temperature threshold, if temperature difference is greater than the preset temperature Threshold value is then carried out by temperature of the heat exchanger to multiple batteries balanced.The system can be in the temperature between multiple batteries as a result, When difference is larger, carried out by temperature of the heat exchanger to multiple batteries, so as to improve the cycle life of battery.
In order to achieve the above objectives, second aspect of the present invention embodiment proposes a kind of temperature control method of on-vehicle battery, The following steps are included: obtaining the temperature of the multiple battery；It is default to judge whether the temperature difference between the multiple battery is greater than Temperature threshold；If it is greater than the preset temperature threshold, then by the balanced heat exchanger to the temperature of the multiple battery into Row is balanced.
The temperature control method of on-vehicle battery according to an embodiment of the present invention obtains the temperature of multiple batteries first, Then judge whether the temperature difference between multiple batteries is greater than preset temperature threshold, if it is greater than preset temperature threshold, then pass through Balanced heat exchanger carries out the temperature of multiple batteries balanced.This method can be larger in the temperature difference between multiple batteries as a result, When, it is carried out by temperature of the heat exchanger to multiple batteries, so as to improve the cycle life of battery.
In order to achieve the above objectives, third aspect present invention embodiment proposes a kind of non-transitory computer-readable storage medium Matter is stored thereon with computer program, which realizes above-mentioned temperature control method when being executed by processor.
The non-transitorycomputer readable storage medium of the embodiment of the present invention obtains the temperature of multiple batteries, then first Judge whether the temperature difference between multiple batteries is greater than preset temperature threshold, if it is greater than preset temperature threshold, then passes through equilibrium Heat exchanger carries out equilibrium to the temperature of multiple batteries, when larger so as to the temperature difference between multiple batteries, passes through equilibrium Heat exchanger carries out, so as to improve the cycle life of battery the temperature of multiple batteries.
Detailed description of the invention
Above-mentioned and/or additional aspect and advantage of the invention will become from the following description of the accompanying drawings of embodiments Obviously and it is readily appreciated that, wherein
Fig. 1 a-1b is the block diagram of the humidity control system of on-vehicle battery according to an embodiment of the invention；
Fig. 2 is the control topological diagram of the humidity control system of on-vehicle battery according to an embodiment of the invention；
Fig. 3 is the block diagram of the humidity control system of on-vehicle battery in accordance with another embodiment of the present invention；
Fig. 4 is the block diagram of the humidity control system of the on-vehicle battery of another embodiment according to the present invention；
Fig. 5 is the flow chart of the temperature control method of on-vehicle battery according to an embodiment of the invention；
Fig. 6 is the flow chart of the temperature control method of on-vehicle battery in accordance with another embodiment of the present invention.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached The embodiment of figure description is exemplary, it is intended to is used to explain the present invention, and is not considered as limiting the invention.
Below with reference to the accompanying drawings come describe the embodiment of the present invention proposition on-vehicle battery temperature control method, non-transitory meter The humidity control system of calculation machine readable storage medium storing program for executing and on-vehicle battery.
Fig. 1 a-1b is the structural schematic diagram of the humidity control system of on-vehicle battery according to an embodiment of the invention.Side Frame schematic diagram.As shown in Fig. 1 a-1b, which includes: the multiple battery thermal managements being respectively connected with multiple batteries heat exchange flow path Module, the multiple heat exchangers being connected with multiple battery thermal management modules, be connected with multiple battery thermal management modules and with it is more Balanced heat exchanger 3, the controller (not specifically illustrated in figure) of a heat exchanger parallel connection.
Wherein, a part in multiple battery thermal management modules is connected with the first pipeline in balanced heat exchanger, Duo Ge electricity Another part in the thermal management module of pond and the second pipeline in balanced heat exchanger.Controller is connect with battery thermal management module, For obtaining the temperature of multiple batteries, and judge whether the temperature difference between multiple batteries is greater than preset temperature threshold, multiple When temperature difference between battery is greater than preset temperature threshold, carried out by temperature of the balanced heat exchanger to multiple batteries balanced.In advance If temperature threshold can be preset according to the actual situation, such as can be 8 DEG C.
Further, as shown in Fig. 1 a-1b, battery includes the first battery 41 and the second battery 42, battery thermal management module Including the first battery thermal management module 11 and the second battery thermal management module 12, heat exchanger includes that First Heat Exchanger 21 and second are changed Hot device 22, the first end of the first battery thermal management module 11 pass through the first triple valve 71 first end with First Heat Exchanger 21 respectively It is connected with the first end of the first pipeline in balanced heat exchanger 3, the second end of the first battery thermal management module 11 passes through the second threeway Valve 72 is connected with the second end of the first pipeline in the second end of the First Heat Exchanger 21 and balanced heat exchanger 3 respectively, the second electricity The first end of pond thermal management module 12 by third triple valve 73 respectively with the first end of the second heat exchanger 22 and balanced heat exchanger 3 In the first end of the second pipeline be connected, the second end of the second battery thermal management module 12 is by the 4th triple valve 74 respectively with second The second end of heat exchanger 22 is connected with the second end of the second pipeline in balanced heat exchanger 3, wherein controller by control first to 4th triple valve 71-74 is balanced to be carried out by temperature of the balanced heat exchanger 3 to multiple batteries.
Specifically, battery, which refers to, is installed on vehicle, and provides power output for vehicle and is that other electricity consumptions on vehicle are set It is standby that the energy storage device of electricity is provided, it can be repeatedly charged.Battery can be battery pack or battery modules.
In an embodiment of the present invention, as shown in Fig. 1 a-1b, battery thermal management module may include setting on heat exchange flow path Pump 102, the first temperature sensor 104, second temperature sensor 105 and flow sensor 106, pump the 102, first temperature sensing Device 104, second temperature sensor 105 and flow sensor 106 are connect with controller；Wherein: pump 102 is for making in heat exchange flow path Media flow；First temperature sensor 104 is used to detect the inlet temperature for the medium for flowing into on-vehicle battery；Second temperature sensing Device 105 is used to detect the outlet temperature of the medium of outflow on-vehicle battery；Flow sensor 106 is used to detect Jie in heat exchange flow path The flow velocity of matter.
Further, as shown in Fig. 1 a-1b, battery thermal management module can also include the medium being arranged on heat exchange flow path Container 103, media Containers 103 are for storing and providing medium to heat exchange flow path.Battery thermal management module can also include setting Heater 101 on heat exchange flow path, heater 101 are connect with controller, for heating the medium in heat exchange flow path.
As shown in Fig. 1 a-1b, balanced heat exchanger 3 can be plate heat exchanger, and two pipelines in balanced heat exchanger 3 are mutual Independently close on setting.As shown in Fig. 2, controller may include battery manager and battery thermal management device, battery manager is used for Battery is managed, can detecte the information such as the voltage, electric current, temperature of each battery, when the temperature difference between battery is super When crossing preset temperature threshold, battery manager sends battery temperature equalization function and starts information, when the temperature difference between battery It meets the requirements, such as when the temperature difference between battery is less than 3 DEG C, issues battery temperature equilibrium and complete information.Battery manager CAN (Controller Area Network, controller local area network) communication can be carried out with battery thermal management device, when two There are when the larger temperature difference between battery, such as the temperature difference is more than 8 DEG C, and battery manager sends battery temperature equalization function and starts information To battery thermal management device, battery thermal management device controls battery thermal management module and starts work, and controls first to fourth threeway 71- 74 channel 1 is connected, and channel 2 is closed, so that the coolant flow in the first pipeline and the second pipeline.
As shown in Figure 1a, wherein in the first pipeline coolant flow direction are as follows: balanced the 3-the first battery thermal of heat exchanger The balanced heat exchanger 3 of module 31-battery thermal management of the 11-the first battery module 11-is managed, specifically: balanced heat exchanger 3-the second 72-heater of triple valve 101-pumps 102-the first temperature sensor 41-second temperature sensor of the 104-the first battery 105-the 103-the first triple valve of 106-media Containers of flow sensor 71-equilibrium heat exchangers 3；Coolant liquid in second pipeline Flow direction are as follows: balanced the 3-the second battery thermal management of heat exchanger module 32-battery thermal management of the 12-the first battery module 12- Balanced heat exchanger 3, it is specific: the 102-the first temperature sensing of balanced 3-the four 74-heater of triple valve of heat exchanger, 101-pump Device the 104-the first battery 42-second temperature sensor, 105-flow sensor, 106-media Containers, 103-third triple valve 73-balanced heat exchangers 3.The higher battery of temperature carries out heat exchange by balanced heat exchanger 3 with the lower battery of temperature, realizes The temperature equalization of battery.
As shown in Figure 1 b, the coolant flow in the first pipeline and the second pipeline, wherein coolant flow in the first pipeline Direction are as follows: balanced the 3-the first battery thermal management of heat exchanger module 31-battery thermal management of the 11-the first battery module 11-is Weigh heat exchanger 3, specifically: 103-flow sensor of balanced heat exchanger 71-media Containers of the 3-the first triple valve 106-the second The 41-the first temperature sensor of the 105-the first battery of temperature sensor 104-pumps 102-the 101-the second triple valves of heater 72-balanced heat exchangers 3；The flow direction of coolant liquid in second pipeline are as follows: balanced the 3-the second battery thermal management of heat exchanger module 12-the first 32-battery thermal management of battery module, 12-equilibrium heat exchanger 3, specifically: balanced the 3-the four triple valve of heat exchanger 74-heater 101-pump, 102-the first temperature sensor the 104-the first battery 42-second temperature sensor, 105-flow velocitys Sensor 106-media Containers, 103-third triple valve 73-equilibrium heat exchanger 3.The flow direction in the first circulating battery of Fig. 1 b circuit With Fig. 1 a on the contrary, first pipe and the coolant flow direction of second pipe are on the contrary, compared with Fig. 1 a in heat exchanger 2, Ke Yiti The heat exchange efficiency of high heat exchanger.
The system can be when the temperature difference between multiple batteries be larger, by heat exchanger to the temperature of multiple batteries as a result, Degree carries out, so as to improve the cycle life of battery.
Further, as shown in Fig. 1 a-1b, above-mentioned system further include: multiple blowers corresponding with multiple heat exchangers are more A blower is connected by multiple regulating valves with air-conditioner wind air outlet, and blower includes the first blower 51 and the second blower 52, regulating valve Including the first regulating valve 61 and the second regulating valve 62.
Specifically, as shown in Fig. 2, controller can also include on-board air conditioner controller, on-board air conditioner controller can be with electricity Pond thermal manager carries out CAN communication.On-board air conditioner controller also can control the first regulating valve 61, the second regulating valve 62 it is open-minded Or shutdown, and the aperture of the first regulating valve 61, the second regulating valve 62 can be adjusted.First blower 51 and the second blower 52 by on-board air conditioner controller control, wind speed is adjustable.
When the temperature of some battery is higher, such as higher than 40 DEG C, then the humidity control system of on-vehicle battery enter it is cold But mode, on-board air conditioner, battery thermal management module are started to work.On-board air conditioner controller controls corresponding regulating valve and opens, example If the temperature of the first battery 41 is higher than 40 DEG C, opened then on-board air conditioner controller controls the first regulating valve 61, the first blower 51 The cooling wind of the air-conditioner air outlet of on-board air conditioner is blowed into First Heat Exchanger 21, in cooling pipe in First Heat Exchanger 21 Coolant liquid is cooled down, and coolant liquid again cools down the first battery 41 through the first battery thermal management module 11.On-board air conditioner is also The cooling power of battery can be used to cool down by adjusting the aperture regulation of the first regulating valve 61.Similarly, on-board air conditioner can also be to Two batteries 42 are cooled down.
When the starting of battery refrigerating function, the cooling duplexure 1 of battery are as follows: the first regulating valve 61-the of air-conditioner air outlet- One 51-First Heat Exchanger of blower 21.Battery cools down duplexure 2 are as follows: the 62-the second wind of regulating valve of air-conditioner wind air outlet-second The 52-the second heat exchanger of machine 22.
Coolant liquid in battery thermal management module flows into the inside of battery from the entrance of flow path, flows out from the outlet of flow path, To realize the heat exchange between battery and coolant liquid.Pump 102 is mainly used for providing power, and media Containers 103 are mainly used for depositing Storage coolant liquid and the coolant liquid for receiving to add to humidity control system, when the coolant liquid in humidity control system is reduced, medium Coolant liquid in container 103 can be automatically replenished.Temperature of first temperature sensor 104 to detect path inlet coolant liquid, the Temperature of two temperature sensors 105 to detect flowing path outlet coolant liquid.Flow sensor 106 is to detect humidity control system The flow rate information of coolant liquid in middle pipeline.
According to one embodiment of present invention, controller is also used to: the temperature for obtaining battery adjusts actual power P2 and temperature Regulatory demand power P 1 is spent, and actual power P2 and temperature regulatory demand power P 1 are adjusted to on-board air conditioner according to the temperature of battery Refrigeration work consumption is adjusted.
Specifically, when the temperature of battery is adjusted to target temperature by temperature regulatory demand power P 1, the temperature of battery needs Spend regulation power.It is the battery practical temperature obtained when currently carrying out temperature adjusting to battery that battery temperature, which adjusts actual power P2, Spend regulation power.Target temperature is setting value, can be preset according to the actual conditions of on-vehicle battery, for example, when being summer When, battery need to be cooled down, target temperature can be set at 35 DEG C or so.
In an embodiment of the present invention, on-vehicle battery humidity control system can also include: the battery being electrically connected with the controller State detection module, battery status detection module are used to detect the electric current of on-vehicle battery.
Temperature adjusting actual power P2 and temperature tune that how controller obtains battery are described combined with specific embodiments below Save demand power P1.
According to one embodiment of present invention, controller can be used for obtaining the first ginseng when battery opening temperature is adjusted Number, and the first temperature regulatory demand power of battery is generated according to the first parameter, and obtain the of battery when temperature is adjusted Two parameters, and adjusted according to the second temperature regulatory demand power of the second parameter generation battery, and according to the first temperature of battery The temperature regulatory demand power P 1 of the second temperature regulatory demand power of demand power and battery generation battery.
Further, according to one embodiment of present invention, the first parameter is initial temperature when battery opening temperature is adjusted Degree and target temperature and the object time t for reaching target temperature from initial temperature, controller obtain initial temperature and target temperature The first temperature difference Δ T between degree1, and according to the first temperature difference Δ T1The first temperature regulatory demand function is generated with object time t Rate.
Further, controller generates the first temperature regulatory demand power by following formula (1):
ΔT1* (1) C*M/t,
Wherein, Δ T1The first temperature difference between initial temperature and target temperature, t are the object time, and C is the ratio of battery Thermal capacitance, M are the quality of battery.
Second parameter is the average current I of battery within a preset time, and controller generates the second temperature by following formula (2) Spend regulatory demand power:
I2* R, (2),
Wherein, I is average current, and R is the internal resistance of battery.
When being cooled down to battery, P1=Δ T1*C*M/t+I2*R。
According to one embodiment of present invention, the inlet temperature that controller is detected according to the first temperature sensor 104 respectively Second temperature difference Δ T is generated with the outlet temperature that second temperature sensor 105 detects2, and according to the second temperature of each battery Poor Δ T2Actual power P2 is adjusted with the flow velocity v that flow sensor 106 the detects temperature for generating battery.
Further, according to one embodiment of present invention, the practical function of temperature adjusting is generated according to by following formula (3) Rate P2:
ΔT2* c*m, (3)
Wherein, Δ T2Poor for second temperature, c is the specific heat capacity of coolant liquid in flow path, and m is to flow through flow path in the unit time The coolant liquid quality of cross section, wherein m=v*s*p, s are the cross-sectional area of flow path, and v is the flow velocity of coolant liquid, and ρ is coolant liquid Density.
In addition, flow sensor can also be substituted by flow sensor, m=Q* ρ, when Q is the unit that flow sensor measures The interior coolant rate for flowing through flow passage cross-sectional area.
Specifically, as shown in Fig. 2, as shown in Fig. 2, controller may include battery management controller, battery thermal management device, On-board air conditioner controller.Wherein, battery thermal management device can be with the first temperature sensor 104, second temperature sensor 105 and stream Fast sensor 106 is electrically connected, and carries out CAN communication with pump 102, and according to the specific heat capacity of medium, the density of medium, flow path it is transversal Area obtains temperature and adjusts actual power P2 and control the revolving speed of pump 102.Battery thermal management device is according to the first temperature sensor 104, the coolant liquid of second temperature sensor 105 detects inlet temperature and outlet temperature and flow sensor detection 106 Flow velocity, can calculate each battery temperature adjust actual power P2.
Battery management controller can acquire the temperature of the electric current for flowing through battery, battery itself, and according to the target of battery The specific heat capacity C of temperature, object time t and battery, the mass M of battery, battery internal resistance R, obtain temperature regulatory demand power P1, and control on-board air conditioner controller start or stop work.
After vehicle powers on, battery management controller judges whether vehicle needs to carry out temperature adjusting, if any one is electric The temperature in pond is higher than 40 DEG C, then judges that battery needs temperature to adjust, and is sent by CAN communication to on-board air conditioner controller and opens temperature The information of regulatory function is spent, heat exchange information is sent after on-board air conditioner controller opening temperature regulatory function to battery thermal management Device, meanwhile, on-board air conditioner controller controls on-board air conditioner and opens refrigerating function, and control needs to carry out temperature regulating cell and corresponds to Regulating valve and blower work, battery thermal management device control pump 102 with default revolving speed (such as slow-speed of revolution) start-up operation,.
Meanwhile in cooling procedure, battery management controller obtains initial temperature (i.e. Current Temperatures), the target temperature of battery Degree and the object time t for reaching target temperature from initial temperature, wherein target temperature and object time t can be according to the actual situation It is preset, and calculates the first temperature regulatory demand power of battery according to formula (1).Battery management controller also obtains electricity The average current I of pond within a preset time, and according to the second temperature regulatory demand power of formula (2) calculating battery.Then, electric Pond Management Controller is adjusted according to the first temperature regulatory demand power and second temperature regulatory demand power calculation temperature of battery The temperature of battery (is adjusted to the demand power of target temperature) by demand power P1 within the object time.Also, battery thermal It manages device and obtains the first temperature sensor 104 and the detection temperature information of second temperature sensor 105, and obtain flow sensor 106 The flow rate information of detection adjusts actual power P2 according to the temperature that formula (3) calculates battery.Finally, on-board air conditioner controller According to the temperature regulatory demand power P 1 of battery, temperature adjusting actual power P2 control on-board air conditioner refrigeration work consumption and regulating valve Aperture, selectively, battery thermal management device adjust the revolving speed of pump 102.
Illustrate controller how according to the temperature of battery adjusting actual power P2 and temperature below with reference to specifically embodiment On-board air conditioner refrigeration work consumption is adjusted in regulatory demand power P 1.
According to one embodiment of present invention, controller also adjusts actual power P2 less than battery temperature item tune to temperature When saving demand power P1, increase the refrigeration work consumption of on-board air conditioner.Controller, which is also used to adjust actual power P2 in temperature, is less than electricity When the temperature regulatory demand power P 1 of pond, increase the revolving speed of the first blower 51 and the second blower 52.
That is, when being cooled down to battery, if the temperature of battery adjusts actual power P2 and is less than battery temperature Regulatory demand power P 1, then on-board air conditioner controller increases the refrigeration work consumption of on-board air conditioner, while increase the first blower 51 and/ Or second blower 52 revolving speed, the cooling capacity of heat exchanger is blowed to increase, so that increasing temperature adjusts actual power P2, so that battery Temperature adjusting can be completed within the object time.
According to one embodiment of present invention, controller is also used to cool down to battery, and the temperature of the first battery Greater than the second battery temperature when, increase the aperture of the first regulating valve 61 and reduce the aperture of the second regulating valve 62, and right Battery is cooled down, and the temperature of the second battery be greater than the first battery temperature when, increase the second regulating valve 62 aperture simultaneously subtract The aperture of small first regulating valve 61.
Specifically, if there is the temperature of a battery is higher than 40 DEG C, then battery thermal management system refrigerating function starts, battery Manager sends battery refrigerating function starting information and gives on-board air conditioner controller.Battery manager acquires current battery temperature and electricity Parameter is flowed, and according to the heat generation parameter of the average current estimation battery within a period of time, according to the current mean temperature of battery pack The temperature regulatory demand power P 1 of the average current estimation battery of difference and battery between battery target temperature, and handle Battery cooling requirement power is sent to on-board air conditioner controller.Battery manager sends the volume for needing to carry out cooling battery simultaneously Number.
If battery manager detects the temperature of the first battery 41 lower than 35 DEG C, battery manager sends the first battery 41 cooling completion information.If battery manager detects the temperature of the second battery 42 lower than 35 DEG C, battery manager is sent The cooling of second battery 42 completes information.If detect 3 DEG C higher than the temperature of the second battery 42 of the temperature of the first battery 41 with On, then battery manager sends the cooling power message information for increasing by the first battery 41.If the temperature of the second battery 42 is than High 3 DEG C of temperature or more of one battery 41, then battery manager sends the battery cooling power message information for increasing by the second battery 42.
If battery manager detects that the temperature of 2 batteries is below 35 DEG C, battery is cooling to be completed, battery manager The cooling information of completing of battery is sent to on-board air conditioner.If the temperature of battery is still higher than after refrigerating function opens 1 hour 35 DEG C, then battery manager increases battery cooling power demand.
If there is the temperature of a battery is lower than 0 DEG C, then battery thermal management system heating function starts.Battery manager is adopted Collect current battery temperature and current parameters, and estimates the heat generation parameter of battery according to the average current within a period of time, according to The temperature of the average current estimation power battery of difference and battery between battery actual temperature and battery target temperature is adjusted Demand power P1, and temperature regulatory demand power P 1 is sent to battery thermal management device, so that battery thermal management device is according to temperature Regulatory demand power P 1 controls heater 101 and carries out heating work.
If battery manager detects that the temperature of the first battery 41 is higher than 10 DEG C, battery manager sends the first battery Information is completed in 41 heating.If battery manager detects that the temperature of the second battery 42 is higher than 10 DEG C, battery manager is sent Information is completed in the heating of second battery 42.If detecting low 3 DEG C of temperature or more of the temperature of the first battery 41 than the second battery 4, Then battery manager sends the battery heating power message information for increasing by the first battery 41.If detecting the temperature of the second battery 42 Low 3 DEG C of electro-temperature or more than the first battery 41 are spent, then battery manager sends the heating power message for increasing by the second battery 42 Information.
If battery manager detects that the temperature of 2 batteries is above 10 DEG C, battery heating is completed, battery manager It sends battery heating and completes information to battery management controller.If still having the temperature of battery after heating function opens 2 hours Degree still is below 10 DEG C, then battery manager increases the heating power of heater.
If the temperature of battery is between 0 DEG C to 40 DEG C, and the temperature difference of the first battery and the second battery 42 is more than 8 DEG C, then battery manager sends battery temperature equalization function starting information.Battery manager acquires the temperature between present battery Difference and target time for balance estimate battery pack required temperature equal power, send battery temperature equal power demand information extremely On-board air conditioner controller.In battery temperature equalization function start-up course, if battery manager, which detects, meets battery heating Function entry condition, then battery manager exits temperature equalization function, into battery heating function.If battery manager detects To battery refrigerating function entry condition is met, then battery manager exits temperature equalization function, into battery refrigerating function.If First battery 41 and 42 battery mean temperature of the second battery difference are less than 3 DEG C, then battery manager sends battery temperature equilibrium function It can complete information.
According to one embodiment of present invention, controller also adjusts actual power P2 and battery to obtain the temperature of battery Temperature equalization demand power P3, and according to the temperature of battery adjust actual power P2 and battery temperature equalization demand power P3 Pump is controlled.
The temperature adjusting actual power P2 and battery how controller obtains battery are described below with reference to specifically embodiment Temperature equalization demand power P3.
Temperature difference between multiple batteries is adjusted in preset range by equalization requirement power P 3 in the object time, such as When within 3 DEG C, heating power/cooling power for needing.When temperature adjusts actual power P2, that is, battery progress temperature equalization Obtained practical heating power/cooling power.Object time is preset value, such as can be 1h.
Equalization requirement power P 3 includes demand for heat power P 3a and cooling requirement power P 3b, the matter between two batteries When amount, internal resistance are identical with electric current, when cooling down to battery, controller can be according to formula: Generate equal cooling requirement power P 3b；When heating to battery, controller can be according to formula: Generate demand for heat power P 3a.Wherein, Δ T1For the temperature gap between two batteries, t is the object time, and C is the ratio of battery Thermal capacitance, M are the quality of battery, and I is the electric current of battery, and R is the internal resistance of battery.
When the quality of two batteries, electric current and unequal internal resistance, lower with 1 temperature of battery, 2 temperature of battery is higher, electricity Pond 1 needs to heat, battery 2 need it is cooling for, controller can according to the following formula (1) calculate demand for heat power P 3a and And cooling requirement power P 3b is calculated according to formula (2):
Wherein, Δ T1For the temperature gap between two batteries, t is the object time, and C is the specific heat capacity of battery, M1It is first The quality of battery, M2For the quality of the second battery, I1For the electric current of the first battery, I2For the quality of the second battery, R1For the first electricity Internal resistance, R2Temperature change for the internal resistance of the second battery, the first battery 41 isThe temperature of second battery 42 Variation are as follows:
The electric current heat production of battery is completely counterbalanced by the control method of above-mentioned formula, so equalized in entire battery temperature Cheng Zhong, the higher battery temperature of temperature will not rise, but balanced demand power is higher.
Following introduction another kind regulative mode, i.e., only consider to reduce the temperature difference between battery as early as possible, not guarantee that Whether the temperature of battery can rise.It is not very high that such case, which is suitable for battery temperature, and the temperature difference between battery is larger When, it is not necessary that the temperature for limiting battery does not increase.Specific calculation formula is as follows:
Assuming that first battery 41 needs to cool down, the second battery 42 when the temperature of the first battery 41 is higher than electric second battery 42 Need to heat, then heating power caused by the electric current between two batteries is different, which differs, is | I1 2R1-I2 2R2|, controller can root Demand for heat power P 3a, which is calculated, according to following formula (3) calculates cooling requirement power P 3b with and according to formula (4):
That is P3a=P3b
Wherein, Δ T1For the temperature gap between two batteries, t is the object time, and C is the specific heat capacity of battery, M1It is first The quality of battery, M2For the quality of the second battery, I1For the electric current of the first battery, I2For the quality of the second battery, R1For the first electricity Internal resistance, R2For the internal resistance of the second battery.
According to one embodiment of present invention, battery thermal management module is also used to obtain the flow path for obtaining battery temperature Inlet temperature and outlet temperature, and obtain coolant liquid flow into flow path flow velocity v, and according to the first temperature sensor 13 detection The outlet temperature of inlet temperature and second temperature sensor 14 detection of the flow path of battery temperature generates second temperature difference Δ T2, with And the second temperature difference Δ T according to each battery2It is adjusted with the flow velocity v that flow sensor 15 the detects temperature for generating battery practical Power P 2.
Further, according to one embodiment of present invention, battery thermal management module generates temperature tune by following formula Save actual power P2:P2=Δ T2* c*m, wherein Δ T2Poor for second temperature, c is the specific heat capacity of coolant liquid in flow path, and m is single The coolant liquid quality of the cross-sectional area of flow path is flowed through in the time of position, wherein m=v* ρ * s, v are the flow velocity of coolant liquid, and ρ is cooling The density of liquid, s are the cross-sectional area of flow path.
On-board air conditioner controller obtain it is electric after, if receive battery manager transmission battery refrigerating function starting information, The starting of battery refrigerating function, on-board air conditioner controller send battery refrigerating function starting information and give battery thermal management device.Vehicle-mounted sky It adjusts controller hair to receive the temperature regulatory demand power P 1 for the battery that battery manager is sent, and the information is transmitted to battery heat Manager.In battery cooling procedure, on-board air conditioner controller controls the first regulating valve 61 and the second regulating valve 62 is opened, simultaneously It controls the first blower 51 and the second blower 52 is started to work.On-board air conditioner controller receives the water temperature letter that battery thermal management device is sent The temperature of breath and battery adjusts actual power P2, and the information is transmitted to battery manager.It is vehicle-mounted in battery cooling procedure The temperature regulatory demand power P 1 and temperature of air-conditioner controller control cell adjust actual power P2, if the temperature of battery is adjusted Actual power P2 is less than temperature regulatory demand power P 1, then the control of on-board air conditioner controller increases refrigeration work consumption, while accelerating the The revolving speed of one blower 51 and the second blower 52.If battery manager detects the temperature of the first battery 41 than the second battery 42 High 3 DEG C of temperature or more, then cooling power message information to the on-board air conditioner that battery manager sends the first battery 41 of increase controls Device, then on-board air conditioner controller increases the aperture of the first regulating valve 61 according to the cooling power message information for increasing by the first battery 41 And reduce the aperture of the second regulating valve 62, so that the cooling power of the first battery 41 increases, the cooling power of the second battery 42 subtracts It is few, to reduce the battery temperature difference between battery.If the temperature of the second battery 42 is 3 DEG C higher than the temperature of the first battery 41 More than, then battery manager send increase the second battery 42 battery cooling power message information, on-board air conditioner controller according to The battery cooling power message information for increasing by the second battery 42 increases the aperture of the second regulating valve 62 and reduces the first regulating valve 61 Aperture so that the cooling power of the first battery 41 reduces, the cooling power of the second battery 42 increases, to reduce between battery Battery temperature difference.
In battery cooling procedure, if the first battery 41 that on-board air conditioner controller receives battery manager transmission is cold But information is completed, then controls the closing of the first regulating valve 61, the first blower 51 stops working.If on-board air conditioner controller receives The second battery that battery manager is sent is cooling to complete information, then controls the closing of the second regulating valve 62, and the second blower 52 stops work Make.If on-board air conditioner controller receives the cooling completion information of battery of battery manager transmission, battery is forwarded to cool down Battery thermal management device is given at information, battery is cooling to be completed.
It is appreciated that the channel 2 that controller controls triple valve is opened, and channel 1 is closed, in temperature in refrigerating function starting When spending equalization function unlatching, the channel 2 that controller controls triple valve is closed, and channel 1 is opened.
According to one embodiment of present invention, as shown in figure 3, the humidity control system of on-vehicle battery can also include air-conditioning The connected third regulating valve 63 of wind air outlet and compartment blower 53, compartment blower 53 is for freezing to compartment.
Specifically, when needing to freeze in compartment, on-board air conditioner controller controls third regulating valve 63 and opens, compartment blower The cooling capacity of air-conditioner air outlet is blowed to compartment to freeze to compartment by 53.
Further, controller is also used to when the temperature of battery reaches third preset temperature, reduces third regulating valve 63 Aperture, while increasing the aperture of the first regulating valve 61 and the second regulating valve 62, and to be not up to third pre- in the temperature of battery If when temperature, further judging whether temperature reaches air-conditioning set temperature in compartment, wherein if reaching air-conditioning set temperature, Then on-board air conditioner reduces the aperture of third regulating valve 63, while increasing the aperture of the first regulating valve 61 and the second regulating valve 62；Such as Fruit is not up to air-conditioning set temperature, then on-board air conditioner keeps the first regulating valve 61, the second regulating valve 62 and third regulating valve 63 Aperture is constant.Wherein, third preset temperature temperature can be preset according to the actual situation, such as can be 45 DEG C.
Specifically, on-board air conditioner obtain it is electric after, if receive battery manager transmission battery refrigerating function starting information, The starting of battery refrigerating function, on-board air conditioner controller send battery refrigerating function starting information and give battery thermal management device.Vehicle-mounted sky Controller is adjusted to receive the battery cooling power demand information (temperature regulatory demand power P 1) that battery manager is sent, and the letter Breath is transmitted to battery thermal management device.In battery cooling procedure, the first regulating valve of on-board air conditioner controller control 61 and second is adjusted It saves valve 62 to open, while controlling the first blower 51 and the start-up operation of the second blower 52.On-board air conditioner controller receives battery thermal The practical cooling power information (temperature adjusts actual power P2) of water temperature information and power battery that device is sent is managed, and the information It is transmitted to battery manager.In battery cooling procedure, if the temperature of battery adjusts the temperature that actual power P2 is less than battery Regulatory demand power P 1, then on-board air conditioner controller judges whether battery mean temperature reaches 45 DEG C (higher temperatures), if electric Pond mean temperature reaches 45 DEG C, then on-board air conditioner controller reduces the aperture of third regulating valve 63, increases 61 He of the first regulating valve The aperture of second regulating valve 62 reduces interior cooling wind flow, increases the cooling wind flow of battery cooling circuit, to adjust battery Cooling and interior cooling refrigerating capacity distribution.On-board air conditioner controller compares the cooling duplexure of battery of the first battery 41 in real time The cooling power of duplexure is cooled down with the battery of the second battery 42, if the temperature of two cooling duplexures adjusts practical function The sum of rate P2 then reduces the aperture of third regulating valve 63 less than the sum of the temperature regulatory demand power P 1 of two batteries, increases first The aperture of regulating valve 61 and the second regulating valve 62, if the temperature of two cooling duplexures adjusts the sum of actual power P2 and is greater than Equal to the sum of the temperature regulatory demand power P 1 of two batteries, then the aperture of the first regulating valve 61 and the second regulating valve 62 is reduced, Or keep the aperture of the first regulating valve 61 and the second regulating valve 62 constant.
If the temperature of battery is not higher than 45 DEG C, on-board air conditioner controller further judges whether the temperature in compartment reaches To air-conditioning set temperature, if reached, on-board air conditioner controller reduces the aperture of third regulating valve 63, increases the first regulating valve 61 and second regulating valve 62 aperture aperture, adjust the cooling airflow of interior cooling duplexure and the cooling duplexure of battery Amount.It is preferential to meet interior refrigeration capacity requirement if the temperature in compartment does not reach air-conditioning set temperature.It is cooling in battery In the process, if on-board air conditioner receives the cooling completion information of battery of battery manager transmission, forward battery is cooling to complete Information gives battery thermal management device, and battery is cooling to be completed.
In addition, as shown in figure 4, the embodiment of the present invention also proposes a kind of humidity control system of on-vehicle battery,.Such as Fig. 4 Shown, the main distinction of Fig. 1 and Fig. 4 are, increase heat exchange blower fan in Fig. 4, the scheme in Fig. 1, need between two batteries Simultaneously access in the circulation loop of wherein one end of balanced heat exchanger, temperature equalization just may be implemented, i.e., must a battery add Heat, another battery is cooling while carrying out, and Fig. 1 can fast implement the temperature equalization between battery.
And scheme shown in Fig. 4, then it only can be linked into temperature equalization circuit by controlling one of battery, the other end is logical It crosses blower and external environment carries out heat exchange and can individually say that battery 1 accesses balanced heat exchange that is, if 1 temperature of battery is higher The first pipe colling end of device, without battery 2 is linked into second pipe heating circuit, Fig. 4 can make battery 2 faster complete At cooling.) for example, the first battery thermal management module is started to work when 1 temperature of battery is higher than 2 temperature of battery, control pump 102 Starting, while the start-up operation of third blower is controlled, so that the heat of coolant liquid passes through in balanced heat exchanger heat exchanger first pipe Heat exchange blower fan blows in external environment, so that coolant temperature declines, so that cooling power is provided for battery, so that 1 temperature of battery Degree decline, and then reduce the temperature difference between battery 1 and battery 2.When 2 temperature of battery is higher than 1 temperature of battery, the second battery Thermal management module is started to work, 102 starting of control pump, while being controlled four fan device and being started to work, so that balanced heat exchanger heat exchange The heat of coolant liquid is blowed in external environment by heat exchange blower fan in device second pipe, so that coolant temperature declines, to be Battery provides cooling power, so that 1 temperature of battery declines, and then reduces the temperature difference between battery 1 and battery 2.
The humidity control system of on-vehicle battery according to an embodiment of the present invention obtains the temperature of multiple batteries by controller Degree, and judges whether the temperature difference between multiple batteries is greater than preset temperature threshold so that balanced heat exchanger multiple batteries it Between temperature difference when being greater than preset temperature threshold, the temperature of multiple batteries is carried out balanced.The system can be in multiple electricity as a result, When temperature difference between pond is larger, carried out by temperature of the balanced heat exchanger to multiple batteries, so as to improve battery Cycle life.Also, can also according to the temperature regulatory demand power and temperature of each battery adjust actual power to battery into Trip temperature adjust, so as to on-vehicle battery when the temperature is excessively high, according to the actual state of on-vehicle battery to battery temperature carry out It adjusts, the temperature of on-vehicle battery is made to maintain preset range, avoid occurring to influence the feelings of on-vehicle battery performance since temperature is excessively high Condition.
Fig. 5 is the flow chart of the temperature control method of the on-vehicle battery of an embodiment according to the present invention.Wherein, as schemed Shown in 1a-1b, on-vehicle battery humidity control system includes the multiple battery thermal managements being respectively connected with multiple batteries heat exchange flow path Module, the multiple heat exchangers being connected respectively with multiple battery thermal management modules, it is being connected with multiple battery thermal management modules and With the balanced heat exchanger of multiple heat exchanger parallel connections, wherein a part in multiple battery thermal management modules in balanced heat exchanger The first pipeline be connected, another part in multiple battery thermal management modules and the second pipeline phase in balanced heat exchanger are repeatedly. As shown in figure 5, temperature control method the following steps are included:
S1 obtains the temperature of multiple batteries.
S2, judges whether the temperature difference between multiple batteries is greater than preset temperature threshold.Wherein, preset temperature threshold can be with It is preset according to the actual situation, for example, can be 8 DEG C.
S3 is carried out equal if temperature difference is greater than preset temperature threshold by temperature of the balanced heat exchanger to multiple batteries Weighing apparatus.
Further, in an embodiment of the present invention, as shown in Fig. 1 a-1b, battery includes the first battery and the second battery, Battery thermal management module includes the first battery thermal management module and the second battery thermal management module, heat exchanger include First Heat Exchanger With the second heat exchanger, the first end of the first battery thermal management module by the first triple valve respectively with the first end of First Heat Exchanger It is connected with the first end of the first pipeline in balanced heat exchanger, the second end of the first battery thermal management module passes through the second triple valve point It is not connected with the second end of the first pipeline in the second end of First Heat Exchanger and balanced heat exchanger, the second battery thermal management module First end by third triple valve respectively with the first end phase of the second pipeline in the first end of the second heat exchanger and balanced heat exchanger Even, the second end of the second battery thermal management module by the 4th triple valve respectively with the second end of the second heat exchanger and balanced exchange heat The second end of the second pipeline is connected in device, wherein carrying out equilibrium by temperature of the balanced heat exchanger to multiple batteries includes: to pass through It is balanced to be carried out by temperature of the balanced heat exchanger to multiple batteries to control triple valve.
Specifically, battery, which refers to, is installed on vehicle, and provides power output for vehicle and is that other electricity consumptions on vehicle are set It is standby that the energy storage device of electricity is provided, it can be repeatedly charged.Battery can be battery pack or battery modules.
As shown in Figure 1a, balanced heat exchanger can be plate heat exchanger, and two pipelines in balanced heat exchanger are mutually indepedent Close on setting.When there are when the larger temperature difference, such as the temperature difference is more than 8 DEG C, electric battery temperature equalization function starting between two batteries It controls battery thermal management module and starts work, and the channel 1 for controlling first to fourth threeway is connected, channel 2 is closed, so that first Coolant flow in pipeline and the second pipeline, wherein in the first pipeline coolant flow direction are as follows: balanced heat exchanger- One battery thermal management module-the first battery-battery thermal management module-equilibrium heat exchanger；The flowing of coolant liquid in second pipeline Direction are as follows: balanced the second battery thermal management of heat exchanger-module-the first battery-battery thermal management module-equilibrium heat exchanger. The higher battery of temperature carries out heat exchange by balanced heat exchanger with the lower battery of temperature, realizes the temperature equalization of battery.By This, can be equal by temperature progress of the heat exchanger to multiple batteries when the temperature difference between multiple batteries is larger, so as to Improve the cycle life of battery.Fig. 1 b in the first battery circulation loop flow direction and Fig. 1 a on the contrary, in heat exchanger 2 first pipe The heat exchange efficiency of heat exchanger can be improved on the contrary, compared with Fig. 1 a in the coolant flow direction of road and second pipe.It specifically describes It can refer to system embodiment of the invention, details are not described herein again.
According to one embodiment of present invention, as shown in fig. 6, the temperature control method of on-vehicle battery can also include:
S10 obtains the temperature of two batteries.
S20, the temperature for judging whether there is some battery are greater than the first temperature threshold.
S30 enters refrigerating mode if the temperature of any one battery is greater than the first temperature threshold.
S40, if the temperature of all batteries further determines whether that there are certain both less than or equal to the first preset threshold The temperature of a battery is less than second temperature threshold value.
S50 enters heating mode if the temperature of any one battery is less than second temperature threshold value.Wherein the first temperature Threshold value is greater than second temperature threshold value, for example, the first temperature threshold can be 40 DEG C, second temperature threshold value can be 0 DEG C.
S60, if the temperature of all batteries is both greater than or equal to second temperature threshold value and less than or equal to the first temperature threshold Value, then judge whether the temperature difference between two batteries is greater than preset temperature threshold.
S70 enters temperature equalization mode if the temperature difference between two batteries is greater than preset temperature threshold.
Specifically, when the temperature of some battery is higher, such as higher than 40 DEG C, then the humidity control system of on-vehicle battery Into refrigerating mode, on-board air conditioner, battery thermal management module are started to work.It controls corresponding regulating valve to open, such as the first electricity The temperature in pond is higher than 40 DEG C, then controlling the unlatching of the first regulating valve, the cooling wind of on-board air conditioner is blowed to first and changed by the first blower Hot device, to cool down to the medium in cooling pipe in First Heat Exchanger, medium is again through the first battery thermal management module to One battery is cooled down.It can also be used to cool down the cooling power of battery by adjusting the aperture regulation of the first regulating valve.Similarly, Second battery can be cooled down.When the temperature of some battery is more lower, then the humidity control system of on-vehicle battery enters Heating mode, battery thermal management module are started to work, and heater is opened, and are heated with the medium exchanged in hot flowpath.
Further, according to one embodiment of present invention, as shown in Figure 1, the temperature strip regulating system of on-vehicle battery also It include: multiple blowers corresponding with multiple heat exchangers, multiple blowers are connected by multiple regulating valves with air-conditioner wind air outlet, blower Including the first blower and the second blower, regulating valve includes the first regulating valve and the second regulating valve, and above-mentioned temperature control method is also It may include: the temperature adjusting actual power for obtaining battery；Obtain the temperature regulatory demand power of battery；It is adjusted according to temperature real Border power and temperature regulatory demand power control the refrigeration work consumption of on-board air conditioner.
When the temperature of battery is adjusted to target temperature by temperature regulatory demand power P 1, the temperature that battery needs adjusts function Rate.It is when currently carrying out temperature adjusting to battery that battery temperature, which adjusts actual power P2, and the practical temperature obtained of battery adjusts function Rate.Target temperature is setting value, can be preset according to the actual conditions of on-vehicle battery, for example, when for summer, it need to be to electricity Pond is cooled down, and target temperature can be set at 35 DEG C or so.
The temperature of actual power P2 and battery are adjusted below with reference to the temperature how description of specifically embodiment obtains battery Demand power P1.
In the present invention, the temperature regulatory demand power P 1 for obtaining battery can specifically include: obtain battery opening temperature The first parameter when adjusting, and the first temperature regulatory demand power is generated according to the first parameter.Battery is obtained when temperature is adjusted The second parameter, and according to the second parameter generate second temperature regulatory demand power.According to the first temperature regulatory demand power and Second temperature regulatory demand power generates temperature regulatory demand power P 1.
Further, according to one embodiment of present invention, the first parameter is initial when battery opening temperature is adjusted Temperature and target temperature and the object time t for reaching the target temperature from initial temperature generate first according to the first parameter Temperature regulatory demand power specifically includes: obtaining the first temperature difference Δ T between initial temperature and target temperature1.According to first Temperature difference Δ T1The first temperature regulatory demand power P 1 is generated with object time t.
Further, according to one embodiment of present invention, the first temperature regulatory demand is generated by following formula (1) Power:
ΔT1* C*M/t, (1)
Wherein, Δ T1The first temperature difference between initial temperature and target temperature, t are the object time, and C is the ratio of battery Thermal capacitance, M are the quality of battery.
According to one embodiment of present invention, the second parameter is the average current I of battery within a preset time, by following Formula (2) generates second temperature regulatory demand power:
I2* R, (2)
Wherein, I is average current, and R is the internal resistance of battery.
When being cooled down to battery, P1=Δ T1*C*M/t+I2*R。
According to one embodiment of present invention, the temperature for obtaining battery, which adjusts actual power P2, can specifically include: obtain The inlet temperature and outlet temperature of flow path for regulating cell temperature, and obtain the flow velocity v that coolant liquid flows into flow path.According to entering Mouth temperature and outlet temperature generate second temperature difference Δ T2.According to second temperature difference Δ T2Temperature, which is generated, with flow velocity v adjusts practical function Rate P2.
Further, according to one embodiment of present invention, into practical according to temperature adjusting is generated by following formula (3) Power P 2:
ΔT2* C*m, (3)
Wherein, Δ T2Poor for second temperature, C is the specific heat capacity of battery, and m is the cross section that flow path is flowed through in the unit time Coolant liquid quality, wherein m=v* ρ * s, v are the flow velocity of coolant liquid, and ρ is the density of coolant liquid, and s is the cross-sectional area of flow path.
In addition, flow sensor can also be substituted by flow sensor, m=Q* ρ, when Q is the unit that flow sensor measures The interior coolant rate for flowing through flow passage cross-sectional area.
Below with reference to the description of specifically embodiment how according to temperature adjusting actual power P2 and temperature regulatory demand power P1 controls the refrigeration work consumption of on-board air conditioner.
According to one embodiment of present invention, if temperature adjusts actual power P2 and is less than battery temperature regulatory demand power P1 then increases the refrigeration work consumption of on-board air conditioner.If temperature, which adjusts actual power P2, is less than battery temperature regulatory demand power P 1, The revolving speed of the first blower and/or the second blower can also be increased.
That is, when being cooled down to battery, if the temperature of battery adjusts actual power P2 and is less than battery temperature Regulatory demand power P 1 then increasing the refrigeration work consumption of on-board air conditioner, while increasing turn of the first blower and/or the second blower Speed, to increase the cooling capacity for blowing to heat exchanger, so that increasing temperature adjusts actual power P2, so that battery can be within the object time Temperature is completed to adjust.
According to one embodiment of present invention, above-mentioned method further include: cooled down when to battery, and the first battery Temperature be greater than the second battery temperature when, increase the first regulating valve aperture and reduce the second regulating valve aperture, Yi Ji Battery is cooled down, and the temperature of the second battery be greater than the first battery temperature when, increase the second regulating valve aperture simultaneously subtract The aperture of small first regulating valve.
Specifically, if there is the temperature of a battery is higher than 40 DEG C, then battery thermal management system refrigerating function starts, acquisition Current battery temperature and current parameters, and according to the heat generation parameter of the average current estimation battery within a period of time, according to electricity The temperature of the average current estimation battery of difference and battery between the current mean temperature of pond group and battery target temperature is adjusted Demand power P1.
If battery manager detects the temperature of the first battery lower than 35 DEG C, the first battery is cooling to complete information.Such as Fruit battery manager detects the temperature of the second battery lower than 35 DEG C, then the cooling of the second battery completes information.If detected 3 DEG C higher than the temperature of the second battery of the temperature of first battery or more, then send the cooling power message information for increasing by the first battery. If 3 DEG C higher than the temperature of the first battery of the temperature of the second battery or more, sending the battery cooling power for increasing by the second battery Message information.
If detecting that the temperature of all batteries is below 35 DEG C, battery is cooling to be completed.If refrigerating function opens 1 After hour, the temperature of battery is still higher than 35 DEG C, then increases battery cooling power demand.
It in battery cooling procedure, controls the first regulating valve and the second regulating valve and opens, while controlling the first blower and the Two blowers are started to work.In battery cooling procedure, the temperature regulatory demand power P 1 and temperature of control cell adjust practical function Rate P2 controls increase refrigeration work consumption, together if the temperature of battery adjusts actual power P2 and is less than temperature regulatory demand power P 1 When accelerate the revolving speed of the first blower and the second blower.If 3 DEG C higher than the temperature of the second battery of the temperature of the first battery or more, Increase the aperture of the first regulating valve and reduces the aperture of the second regulating valve, so that the cooling power of the first battery increases, the second electricity The cooling power in pond is reduced, to reduce the battery temperature difference between battery.If the temperature of the second battery is than the first battery High 3 DEG C of temperature or more, then increase the second battery battery cooling power message information increase the second regulating valve aperture and subtract The aperture of small first regulating valve, so that 4 cooling power of the first battery reduces, the cooling power of the second battery increases, to reduce Battery temperature difference between battery.
According to one embodiment of present invention, as shown in figure 3, the humidity control system of on-vehicle battery can also include air-conditioning The connected third regulating valve of wind air outlet and compartment blower, compartment blower is for freezing to compartment.The above method can be with It include: to judge whether the temperature of battery reaches third preset temperature；If reaching third preset temperature, third regulating valve is reduced Aperture, while increase the first regulating valve and the second regulating valve aperture；If not up to third preset temperature, further sentences Whether temperature reaches air-conditioning set temperature in disconnected compartment；If reaching air-conditioning set temperature, the aperture of third regulating valve is reduced, Increase the aperture of the first regulating valve and the second regulating valve simultaneously；If not up to air-conditioning set temperature, keep the first regulating valve, The aperture of second regulating valve and third regulating valve is constant.Wherein, third preset temperature temperature can carry out pre- according to the actual situation If such as can be 45 DEG C.
Specifically, when needing to freeze in compartment, control third blower is opened, and compartment blower is by the cooling capacity of air-conditioner air outlet Compartment is blowed to freeze to compartment.
When cooling to battery, control the first regulating valve and the second regulating valve is opened, while controlling the first blower and second Blower is started to work.In battery cooling procedure, if the temperature of battery adjusts the temperature adjusting that actual power P2 is less than battery Demand power P1, then judge whether battery mean temperature reaches 45 DEG C (higher temperatures), if battery mean temperature reaches 45 DEG C, The aperture of third regulating valve is then reduced, the aperture of the first regulating valve and the second regulating valve is increased, interior cooling wind flow is reduced, increases It is powered on the cooling wind flow of pond cooling circuit, to adjust the cooling and interior cooling refrigerating capacity distribution of battery.Also, in real time relatively The cooling power of the cooling duplexure of battery of the cooling duplexure of the battery of first battery and the second battery, if two coolings The temperature of duplexure adjusts temperature regulatory demand power P 1 the sum of of the sum of the actual power P2 less than two batteries, then reduces the The aperture of three regulating valves increases the aperture of the first regulating valve and the second regulating valve, if the temperature tune of two cooling duplexures The sum of the temperature regulatory demand power P 1 that the sum of actual power P2 is more than or equal to two batteries is saved, then reduces the first regulating valve and the The aperture of two regulating valves, or keep the aperture of the first regulating valve and the second regulating valve constant.
If the temperature of battery is not higher than 45 DEG C, judge whether the temperature in compartment reaches air-conditioning set temperature, if Reach, then reduce the aperture of third regulating valve, increase the aperture of the aperture of the first regulating valve and the second regulating valve, adjustment is interior cold But the cooling wind flow of duplexure and the cooling duplexure of battery.If the temperature in compartment does not reach air-conditioning setting temperature Degree, then it is preferential to meet interior refrigeration capacity requirement.In battery cooling procedure, if on-board air conditioner receives battery manager hair The battery sent is cooling to complete information, then forwards the cooling information of completing of battery to give battery thermal management device, battery is cooling to be completed.
In conclusion the temperature control method of on-vehicle battery according to an embodiment of the present invention, obtains multiple electricity first The temperature in pond, then judges whether the temperature difference between multiple batteries is greater than preset temperature threshold, if it is greater than preset temperature threshold Value is then carried out by temperature of the balanced heat exchanger to multiple batteries balanced.This method can be in the temperature between multiple batteries as a result, When degree difference is larger, carried out by temperature of the balanced heat exchanger to multiple batteries, so as to improve the cycle life of battery.And And actual power can also be adjusted according to the temperature regulatory demand power and temperature of each battery and temperature adjusting is carried out to battery, So as to on-vehicle battery when the temperature is excessively high, battery temperature is adjusted according to the actual state of on-vehicle battery, is made vehicle-mounted The temperature of battery maintains preset range, avoids that there is a situation where due to the excessively high influence on-vehicle battery performance of temperature.
In addition, the embodiment of the present invention also proposes a kind of non-transitorycomputer readable storage medium, it is stored thereon with meter Calculation machine program, the program realize above-mentioned temperature control method when being executed by processor.
The non-transitorycomputer readable storage medium of the embodiment of the present invention obtains the temperature of multiple batteries, then first Judge whether the temperature difference between multiple batteries is greater than preset temperature threshold, if it is greater than preset temperature threshold, then passes through equilibrium Heat exchanger carries out equilibrium to the temperature of multiple batteries, when larger so as to the temperature difference between multiple batteries, passes through equilibrium Heat exchanger carries out, so as to improve the cycle life of battery the temperature of multiple batteries.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " up time The orientation or positional relationship of the instructions such as needle ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " be orientation based on the figure or Positional relationship is merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning must There must be specific orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or Implicitly include at least one this feature.In the description of the present invention, the meaning of " plurality " is at least two, such as two, three It is a etc., unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc. Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be mechanical connect It connects, is also possible to be electrically connected；It can be directly connected, can also can be in two elements indirectly connected through an intermediary The interaction relationship of the connection in portion or two elements, unless otherwise restricted clearly.For those of ordinary skill in the art For, the specific meanings of the above terms in the present invention can be understood according to specific conditions.
In the present invention unless specifically defined or limited otherwise, fisrt feature in the second feature " on " or " down " can be with It is that the first and second features directly contact or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists Second feature " on ", " top " and " above " but fisrt feature be directly above or diagonally above the second feature, or be merely representative of First feature horizontal height is higher than second feature.Fisrt feature can be under the second feature " below ", " below " and " below " One feature is directly under or diagonally below the second feature, or is merely representative of first feature horizontal height less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office It can be combined in any suitable manner in one or more embodiment or examples.In addition, without conflicting with each other, the skill of this field Art personnel can tie the feature of different embodiments or examples described in this specification and different embodiments or examples It closes and combines.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned Embodiment is changed, modifies, replacement and variant.

Claims (16)

1. a kind of humidity control system of on-vehicle battery characterized by comprising
The multiple battery thermal management modules being respectively connected with multiple batteries heat exchange flow path；
The multiple heat exchangers being connected respectively with the multiple battery thermal management module；
The balanced heat exchanger connected and in parallel with the multiple heat exchanger with the multiple battery thermal management module, wherein A part in the multiple battery thermal management module is connected with the first pipeline in the balanced heat exchanger, the multiple battery Another part in thermal management module and the second pipeline in the balanced heat exchanger；
Controller, the controller are connect with the battery thermal management module, and the controller is for obtaining the multiple battery Temperature, and judge whether the temperature difference between the multiple battery is greater than preset temperature threshold, between the multiple battery Temperature difference when being greater than preset temperature threshold, carried out by temperature of the balanced heat exchanger to the multiple battery balanced.
2. the humidity control system of on-vehicle battery as described in claim 1, which is characterized in that the battery includes the first battery With the second battery, the battery thermal management module includes the first battery thermal management module and the second battery thermal management module, described Heat exchanger includes First Heat Exchanger and the second heat exchanger, and the first end of the first battery thermal management module passes through the first triple valve It is connected respectively with the first end of the first pipeline in the first end of the First Heat Exchanger and the balanced heat exchanger, first electricity The second end of pond thermal management module by the second triple valve respectively with the second end of the First Heat Exchanger and it is described it is balanced exchange heat The second end of the first pipeline is connected in device, the first end of the second battery thermal management module by third triple valve respectively with institute The first end for stating the second heat exchanger is connected with the first end of the second pipeline in the balanced heat exchanger, second battery thermal management The second end of module is by the 4th triple valve respectively in the second end of second heat exchanger and the balanced heat exchanger second The second end of pipeline is connected, wherein
The controller passes through the balanced heat exchanger by controlling first to fourth triple valve to the multiple battery Temperature carry out it is balanced.
3. the humidity control system of on-vehicle battery as described in claim 1, which is characterized in that further include and first heat exchange Device and corresponding first blower of the second heat exchanger and the second blower, first blower and second blower are adjusted by first Valve and the second regulating valve are connected with air-conditioner wind air outlet.
4. the humidity control system of on-vehicle battery as claimed in claim 3, which is characterized in that the battery thermal management module packet It includes and pump, the first temperature sensor, second temperature sensor and the flow sensor to exchange heat on flow path is set, the pump, First temperature sensor, second temperature sensor and flow sensor are connect with the controller；Wherein:
The pump is for making the media flow in the heat exchange flow path；
First temperature sensor is used to detect the inlet temperature for the medium for flowing into the on-vehicle battery；
The second temperature sensor is used to detect the outlet temperature for the medium for flowing out the on-vehicle battery；
The flow sensor is used to detect the flow velocity of the medium in the heat exchange flow path.
5. the humidity control system of on-vehicle battery as claimed in claim 4, which is characterized in that the battery thermal management module is also Including the media Containers being arranged on the heat exchange flow path, the media Containers are for storing and providing Jie to the heat exchange flow path Matter.
6. the humidity control system of on-vehicle battery as claimed in claim 4, which is characterized in that the battery thermal management module is also Including the heater being arranged on the heat exchange flow path, the heater is connect with the controller, for heating the heat exchange Medium in flow path.
7. the humidity control system of on-vehicle battery as claimed in claim 3, which is characterized in that further include going out with the air-conditioner wind The connected third regulating valve in air port and compartment blower, the compartment blower is for freezing to compartment.
8. on-vehicle battery humidity control system as described in claim 1, which is characterized in that further include being electrically connected with the controller Battery status detection module, the battery status detection module is used to detect the electric current of the on-vehicle battery.
9. a kind of temperature control method of on-vehicle battery, which is characterized in that on-vehicle battery humidity control system includes and multiple electricity Multiple battery thermal management modules that pond heat exchange flow path is respectively connected with, are connected with the multiple battery thermal management module multiple respectively Heat exchanger, the balanced heat exchanger connected and in parallel with the multiple heat exchanger with the multiple battery thermal management module, In, a part in the multiple battery thermal management module is connected with the first pipeline in the balanced heat exchanger, the multiple Another part in battery thermal management module is connected with the second pipeline in the balanced heat exchanger, and the method includes following steps It is rapid:
Obtain the temperature of the multiple battery；
Judge whether the temperature difference between the multiple battery is greater than preset temperature threshold；
If the temperature difference is greater than the preset temperature threshold, by the balanced heat exchanger to the temperature of the multiple battery Degree carries out balanced.
10. the temperature control method of on-vehicle battery as claimed in claim 9, which is characterized in that the battery includes the first electricity Pond and the second battery, the battery thermal management module include the first battery thermal management module and the second battery thermal management module, institute Stating heat exchanger includes First Heat Exchanger and the second heat exchanger, and the first end of the first battery thermal management module passes through the first threeway Valve is connected with the first end of the first pipeline in the first end of the First Heat Exchanger and the balanced heat exchanger respectively, and described first The second end of battery thermal management module by the second triple valve respectively with the second end of the First Heat Exchanger and described balanced change The second end of the first pipeline is connected in hot device, the first end of the second battery thermal management module by third triple valve respectively with The first end of second heat exchanger is connected with the first end of the second pipeline in the balanced heat exchanger, second battery thermal The second end of module is managed by the 4th triple valve respectively in the second end of second heat exchanger and the balanced heat exchanger the The second end of two pipelines is connected, wherein carrying out equilibrium to the temperature of the multiple battery by the balanced heat exchanger includes:
It is balanced to be carried out by the balanced heat exchanger to the temperature of the multiple battery by controlling the triple valve.
11. the temperature control method of on-vehicle battery as claimed in claim 10, which is characterized in that the on-vehicle battery temperature tune Section system further includes the first blower corresponding with the First Heat Exchanger and the second heat exchanger and the second blower, first blower It is connected by the first regulating valve and the second regulating valve with air-conditioner wind air outlet with second blower, the method also includes:
The temperature for obtaining the battery adjusts actual power；
Obtain the temperature regulatory demand power of the battery；
Actual power is adjusted according to the temperature and the temperature regulatory demand power controls the refrigeration work consumption of on-board air conditioner System.
12. the temperature control method of on-vehicle battery as claimed in claim 11, which is characterized in that adjusted according to the temperature real Border power and the temperature regulatory demand power control the refrigeration work consumption of on-board air conditioner, comprising:
When the temperature, which adjusts actual power, is less than the temperature regulatory demand power, increase the refrigeration function of the on-board air conditioner Rate.
13. the temperature control method of on-vehicle battery as claimed in claim 11, which is characterized in that described according to the temperature tune Section actual power and the temperature regulatory demand power control the refrigeration work consumption of on-board air conditioner, further includes:
Increase the revolving speed of first blower and the second blower.
14. the temperature control method of on-vehicle battery as claimed in claim 11, which is characterized in that the method also includes:
Freeze when to the battery, and the temperature of first battery be greater than second battery temperature when, increase institute It states the aperture of the first regulating valve and reduces the aperture of second regulating valve；
Freeze when to the battery, and the temperature of second battery be greater than first battery temperature when, increase institute It states the aperture of the second regulating valve and reduces the aperture of first regulating valve.
15. the temperature control method of on-vehicle battery as claimed in claim 11, which is characterized in that the on-vehicle battery temperature tune Section system further includes the third regulating valve being connected with the air-conditioner wind air outlet and compartment blower, and the compartment blower is used for vehicle Compartment freeze the method also includes:
Judge whether the temperature of the battery reaches third preset temperature；
If reaching the third preset temperature, the aperture of the third regulating valve is reduced, while increasing described first and adjusting The aperture of valve and the second regulating valve；
If the not up to described third preset temperature, further judge whether temperature reaches air-conditioning set temperature in compartment；
If reaching the air-conditioning set temperature, the aperture of the third regulating valve is reduced, while increasing described first and adjusting The aperture of valve and the second regulating valve.
16. a kind of non-transitorycomputer readable storage medium, is stored thereon with computer program, which is characterized in that the program The temperature control method of the on-vehicle battery as described in any one of claim 9-15 is realized when being executed by processor.
CN201710922874.6A 2017-09-30 2017-09-30 Temperature adjusting method and temperature adjusting system for vehicle-mounted battery Active CN109599612B (en)

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