Invention content
An embodiment of the present invention provides a kind of battery temperature regulating system, method and computer readable storage mediums.ForReliability is relatively low when solving the problems, such as in the related technology to adjust battery into trip temperature.The technical solution is as follows：
In a first aspect, providing a kind of battery temperature regulating system, the system is applied in electric vehicle, the systemIncluding：Battery cooling circuit and battery heating circuit, the battery heating circuit include battery pack, the first water pump and heatingDevice, the battery cooling circuit include the battery pack, air compressor machine, condenser and the first solenoid valve, the electricity of the electric vehiclePond is located in the battery pack；
The water inlet of first water pump is connect with the first end of the battery pack, the water outlet of first water pump and instituteThe first end connection of heater is stated, the second end of the heater is connect with the second end of the battery pack；
The first end of the air compressor machine is connect with the first end of the condenser, the second end of the air compressor machine and the electricityThe third end of Chi Bao connects, and the second end of the condenser is connect with the first end of first solenoid valve, first electromagnetismThe second end of valve is connect with the 4th end of the battery pack.
Optionally, the battery heating circuit further includes the first expansion tank；
The first end of first expansion tank is connect with the second end of the battery pack, the second end of first expansion tankIt is connect with the second end of the heater.
Optionally, further include evaporator and second solenoid valve in the battery cooling circuit；
The first end of the evaporator is connect with the third end of the second end of the air compressor machine and the battery pack respectively, instituteThe first end of the second end and second solenoid valve of stating evaporator connects, and the second end of the second solenoid valve is respectively with described firstThe first end of solenoid valve is connected with the second end of the condenser.
Second aspect provides a kind of battery temperature adjusting method, and the method is applied in electric vehicle, described electronicAutomobile includes any battery temperature regulating system in above-mentioned first aspect, the method includes：
Detect the temperature of the battery of the electric vehicle；
When the temperature of the battery of the electric vehicle is less than or equal to the first preset temperature, pass through the battery temperature tuneBattery heating circuit in section system heats the battery, to realize the heating to the battery of the electric vehicle；
When the temperature of the battery of the electric vehicle is greater than or equal to the second preset temperature, pass through the battery temperature tuneBattery cooling circuit in section system cools down the battery, to realize the cooling to the battery of the electric vehicle.
Optionally, the battery heating circuit includes the first water pump and heater；
The battery heating circuit by the battery temperature regulating system heats the battery, including：
The switch for controlling first water pump is opened, so that the coolant liquid in first water pump heats back in the batteryWhen being recycled in road, the heater heats the coolant liquid in the battery heating circuit, the coolant liquid cycle after heatingWhen to the battery pack, the battery in the battery pack is heated.
Optionally, the battery heating circuit further includes the first expansion tank；
After the battery heating circuit by the battery temperature regulating system heats the battery, alsoIncluding：
Detect the gas pressure intensity in the battery heating circuit；
When the gas pressure intensity is greater than or equal to the first preset pressure threshold value, the first expansion box opening is opened, withFirst expansion tank is set to discharge the gas in the battery heating circuit.
Optionally, the battery cooling circuit includes air compressor machine, condenser and the first solenoid valve；
The battery cooling circuit by the battery temperature regulating system cools down the battery, including：
It controls first solenoid valve to open, so that the refrigerant that the condenser provides is in the battery cooling circuitWhen cycle, the air compressor machine converts the refrigerant to liquid by gaseous state, the refrigerant circulation of liquid state to the battery packWhen take away the heat that the battery generates in the battery pack, realize the cooling to the battery.
Optionally, further include evaporator and second solenoid valve in the battery cooling circuit；
The method further includes：
When the electric vehicle opens air conditioner refrigerating function, controls the second solenoid valve and open, so that the liquidWhen the refrigerant of shape enters the evaporator, the evaporator converts the refrigerant of the liquid state to gaseous state, and by gaseous stateThe refrigerant of shape diffuses to the crew module of the electric vehicle, to realize the cooling to the crew module.
The third aspect provides a kind of computer readable storage medium, computer program is stored in the storage medium,The computer program realizes any method in above-mentioned second aspect when being executed by processor.
The advantageous effect that technical solution provided in an embodiment of the present invention is brought is：
In embodiments of the present invention, when the first end of the water inlet of the first water pump and battery pack connects, the first water pump goes outThe first end of the mouth of a river and heater connects, and the second end of heater and the second end of battery pack connect, and constitute battery heating circuit,And when the first end of air compressor machine and the first end of condenser connect, the second end of air compressor machine and the third end of battery pack connect, coldThe second end of condenser is connect with the first end of the first solenoid valve, and the second end of the first solenoid valve and the 4th end of battery pack connect,When constituting battery cooling circuit, due in entire battery temperature regulating system there is no the circuit heated up to crew module,The influence that battery temperature is adjusted without considering crew module's warm-up circuit when regulating cell temperature.Simultaneously as battery cools backRoad and battery warm-up circuit are only relevant at battery pack, to the mutual not shadow of the control of battery cooling circuit and battery warm-up circuitIt rings.It that is to say, when battery cooling circuit damages, can still control battery warm-up circuit and battery is heated, work as batteryWhen heating circuit damages, it can still control battery cooling circuit and cool down to battery, temperature is carried out to battery to improveSpend the reliability adjusted.In addition, due in battery temperature regulating system without using arriving CHILLER heat exchangers and a large amount ofSolenoid valve, to reduce the cost of battery temperature regulating system.
Specific implementation mode
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached drawing to embodiment party of the present inventionFormula is described in further detail.
Before carrying out detailed explanation to the embodiment of the present invention, the first application to being arrived involved in the embodiment of the present inventionScene is explained.
Currently, the battery temperature due to electric vehicle is too high, when being more than the permission operating temperature range of battery, it will causeBattery discharge ability declines, and causes electric vehicle can not normally travel；And the temperature for working as battery is too low, then may chargeCause battery short circuit in the process, lead to explosion, causes casualties.Therefore, it in order to ensure the service life of battery, reducesThe danger of electric vehicle, it will usually battery temperature is adjusted by battery temperature regulating system as shown in Figure 1.ButIt is that in battery temperature regulating system shown in FIG. 1, battery cooling circuit, battery warm-up circuit and crew module's warm-up circuit needIt cooperates, that is to say, the switch of solenoid valve in control crew module's warm-up circuit is also needed in regulating cell temperature, is being controlledWhen crew module's warm-up circuit heats up to crew module, need to control opening for solenoid valve in battery cooling circuit and battery warm-up circuitIt closes, and controls crew module's warm-up circuit when heating up to crew module, cooling operation can not be carried out to battery.Meanwhile if whereinSolenoid valve damage in one circuit, works then other circuits will be influenced, and to which whole system will be caused out of control, dropsThe low reliability that battery is adjusted into trip temperature.
Based on such scene, an embodiment of the present invention provides a kind of batteries that can be improved battery temperature and adjust reliabilityHumidity control system.
It, next will be in conjunction with attached drawing to the embodiment of the present invention after the application scenarios to the embodiment of the present invention are introducedThe battery temperature regulating system of offer describes in detail.
Fig. 2A is a kind of structural schematic diagram for battery temperature regulating system that the embodiment of the present disclosure provides.It, should referring to Fig. 2ABattery temperature regulating system is applied in electric vehicle, which includes：Battery cooling circuit and battery heating circuit, battery addHot loop includes battery pack 1, the first water pump 2 and heater 3, which includes battery pack 1, air compressor machine 4, condensationThe battery of device 5 and the first solenoid valve 6, the electric vehicle is located in battery pack 1；The water inlet 2a of first water pump 2 and battery pack 1First end 1a connections, the water outlet 2b of the first water pump 2 are connect with the first end 3a of heater 3, second end 3b and the electricity of heater 3The second end 1b connections of pond packet 1；The first end 4a of air compressor machine 4 is connect with the first end 5a of condenser 5, the second end of air compressor machine 44b is connect with the third end 1c of battery pack 1, and the second end 5b of condenser 5 is connect with the first end 6a of the first solenoid valve 6, the first electricityThe second end 6b of magnet valve 6 is connect with the 4th end 1d of battery pack 1.
In embodiments of the present invention, when the water inlet 2a of the first water pump 2 is connect with the first end 1a of battery pack 1, the first waterThe water outlet 2b of pump 2 is connect with the first end 3a of heater 3, and the second end 3b of heater 3 connects with the second end 1b of battery pack 1It connects, constitutes battery heating circuit, and when the first end 4a of air compressor machine 4 is connect with the first end 5a of condenser 5, the of air compressor machine 4Two end 4b are connect with the third end 1c of battery pack 1, and the second end 5b of condenser 5 is connect with the first end 6a of the first solenoid valve 6, theThe second end 6b of one solenoid valve 6 is connect with the 4th end 1d of battery pack 1, when constituting battery cooling circuit, due to entire battery temperatureThere is no the circuits heated up to crew module in degree regulating system, in regulating cell temperature without considering that crew module is heated up backThe influence that road adjusts battery temperature.Simultaneously as battery cooling circuit and battery warm-up circuit are only related at battery packConnection, therefore, is independent of each other to the control of battery cooling circuit and battery warm-up circuit.It that is to say, when battery cooling circuit damagesWhen, it can still control battery warm-up circuit and battery is heated, when battery heating circuit damages, can still control electricityPond cooling circuit cools down to battery, to improve the reliability adjusted into trip temperature to battery.In addition, due to battery temperatureIt spends in regulating system without using arriving CHILLER heat exchangers and a large amount of solenoid valve, is adjusted to reduce battery temperatureThe cost of system.
By above-mentioned Fig. 2A it is found that the water inlet 2a of the first water pump 2 is connect with the first end 1a of battery pack 1, the first water pump 2Water outlet 2b is connect with the first end 3a of heater 3, and the second end 3b of heater 3 is connect with the second end 1b of battery pack 1.Due toThe battery of electric vehicle is largely lithium battery, and lithium battery carries out charging operations in low temperature and easilys lead to batteryShort circuit, to cause the danger such as explosion, therefore, in order to ensure cell safety, when the temperature of the battery of electric vehicle is less than or waitsWhen the first preset temperature, the switch of the first water pump 2 is opened, and the coolant liquid in the first water pump 2 can be in the first water pump 2, heatingIt is recycled in device 3 and battery pack 1, and when coolant liquid is recycled to heater 3, which can heat the coolant liquid,When coolant liquid after heating is recycled to battery pack 1, the coolant liquid after the heating can add the battery in battery pack 1Heat, to realize the heating to the battery of electric vehicle.
It should be noted that first preset temperature is the temperature for ensureing the battery of electric vehicle and charging normal, this firstPreset temperature can be arranged in advance, for example, first preset temperature can be 5 degrees Celsius, 10 degrees Celsius etc..
By above-mentioned Fig. 2A it is found that the first end 4a of air compressor machine 4 is connect with the first end 5a of condenser 5, the second of air compressor machine 4End 4b is connect with the third end 1c of battery pack 1, and the second end 5b of condenser 5 is connect with the first end 6a of the first solenoid valve 6, and firstThe second end 6b of solenoid valve 6 is connect with the 4th end 1d of battery pack 1.Since the temperature of the battery when the electric vehicle is more than or waitsWhen the second preset temperature, illustrate that the temperature of the battery of the current electric vehicle has been more than to be suitble to the temperature of battery regular picture,The battery of electric vehicle possibly can not continue to discharge at high temperature at this time, alternatively, the battery of electric vehicle continues in high temperatureLower electric discharge will cause electric vehicle can not normally travel.Therefore, in order to make the battery regular picture of electric vehicle, make electricityElectrical automobile normal driving, when the temperature of electric vehicle is greater than or equal to the second preset temperature, the first solenoid valve 6 is opened, toThe refrigerant that condenser 5 provides can recycle in condenser 5, air compressor machine 4 and battery pack 1, and when the refrigerant circulation to skyWhen press 4, air compressor machine 4 can convert refrigerant to liquid by gaseous state, can be with when refrigerant circulation to the battery pack 1 of liquid stateThe heat that battery generates in battery pack 1 is taken away, realizes the cooling to battery.
It should be noted that second preset temperature, which is the battery of limitation electric vehicle, carries out the temperature of electric discharge work, it shouldSecond preset temperature can be arranged in advance, for example, second preset temperature can be 60 degrees Celsius, 70 degrees Celsius etc..
In embodiments of the present invention, referring to Fig. 2 B, which further includes the first expansion tank 7；First expansion tank 7First end 7a connect with the second end 1b of 1 battery pack, the second end 7b of the first expansion tank 7 and the second end 3b of heater 3 connectIt connects.
Due to when coolant temperature increases, might have part coolant liquid gaseous state due to high temperature, so as to cause batteryAir pressure increases in heating circuit, is recycled in battery heating circuit to influence coolant liquid, and then lead to the effect heated to batteryRate is low, therefore poor reliability in order to improve the efficiency and reliability heated to battery, is also wrapped in the battery heating circuitInclude the first expansion tank 7.
Wherein, which can be greater than or equal to the first default gas in the gas pressure intensity in battery heating circuitWhen pressing threshold value, the gas in the battery heating circuit is discharged.The first preset pressure threshold value can be arranged in advance, thanSuch as, which can be 100 Pascals, 200 Pascals etc..
It is worth noting that when battery heating circuit includes the first expansion tank 7, which can will be electricGas in the heating circuit of pond is eliminated so that coolant liquid is full of in battery heating circuit, promote battery heating circuit to battery intoThe efficiency of row heating.
Further include evaporator 8 and second solenoid valve 9 in the battery cooling circuit referring to Fig. 2 C；The first end 8a of evaporator 8It is connect respectively with the third end 1c of the second end 4b of air compressor machine 4 and battery pack 1, second end 8b and the second solenoid valve 9 of evaporator 8First end 9a connections, the second end 9b of second solenoid valve 9 respectively with the first end 6a of the first solenoid valve 6 and condenser 5Two end 5b connections.
It due to sometimes may be because of weather, needs to cool down to crew module, and due in battery cooling circuitCondenser 5 is capable of providing refrigerant, therefore, in order to save resource, can directly pass through the refrigerant in the battery cooling circuitCool down to crew module.And in order to be cooled down to crew module by the refrigerant in the battery cooling circuit, the battery is coldBut can also include evaporator 8 and second solenoid valve 9 in circuit.
Wherein, when electric vehicle opens air conditioner refrigerating function, which can open, in condenser 5Refrigerant can enter in evaporator 8, which can convert the refrigerant of the liquid state to gaseous state, and by gaseous stateThe refrigerant of shape diffuses to the crew module of electric vehicle, to realize the cooling to crew module.
In embodiments of the present invention, when the first end of the water inlet of the first water pump and battery pack connects, the first water pump goes outThe first end of the mouth of a river and heater connects, and the second end of heater and the second end of battery pack connect, and constitute battery heating circuit,And when the first end of air compressor machine and the first end of condenser connect, the second end of air compressor machine and the third end of battery pack connect, coldThe second end of condenser is connect with the first end of the first solenoid valve, and the second end of the first solenoid valve and the 4th end of battery pack connect,When constituting battery cooling circuit, due in entire battery temperature regulating system there is no the circuit heated up to crew module,The influence that battery temperature is adjusted without considering crew module's warm-up circuit when regulating cell temperature.Simultaneously as battery cools backRoad and battery warm-up circuit are only relevant at battery pack, to the mutual not shadow of the control of battery cooling circuit and battery warm-up circuitIt rings.It that is to say, when battery cooling circuit damages, can still control battery warm-up circuit and battery is heated, work as batteryWhen heating circuit damages, it can still control battery cooling circuit and cool down to battery, temperature is carried out to battery to improveSpend the reliability adjusted.In addition, due in battery temperature regulating system without using arriving CHILLER heat exchangers and a large amount ofSolenoid valve, to reduce the cost of battery temperature regulating system.
In an alternative embodiment of the invention, which may include not only battery temperature tune shown in above-described embodimentSection system can also include other systems, for example, electric drive cooling system.Referring to Fig. 2 D, the electric drive cooling system and the electricityPond humidity control system is mutual indepedent, which includes electric drive cooling circuit, the electric drive cooling circuit packetInclude electric drive 10, MCU (Micro controller Unit, micro-control unit) 11, second water pump 12, radiator 13 and secondExpansion tank 14.
It should be noted that the first end 11a connections of the first end 10a and MCU11 of the electric drive 10, the of electric drive 10Two end 10b are connect with the first end 13a of radiator 13, and the second end 11b of MCU11 is connect with the water outlet 12a of the second water pump 12,The second end 13b of radiator 13 is connect with the first end 14a of the water inlet 12b of the second water pump 12 and the second expansion tank 14 respectively,The second end 14b of second expansion tank 14 is connect with the water inlet 12b of the second water pump 12, the third end 14c of the second expansion tank 14 withThe third end 11c connections of MCU11.
Wherein, when electric drive 10 when the temperature is excessively high, electric drive 10 may be damaged at high temperature, lead to not driving electricityElectrical automobile travels, and therefore, when the temperature of electric drive 10 is greater than or equal to third predetermined threshold value, the switch of the second water pump 12 is openedIt opens, the coolant liquid in the second water pump 12 can be in the second water pump 12, MCU11, electric drive 10, radiator 13 and the second expansion tank 14Middle cycle, to take away the heat in electric drive cooling circuit, when coolant liquid is recycled to radiator 13, radiator 13 can will be coldBut the heat in liquid is diffused by air, to cool down to electric drive.Due to radiator 13 second end 13b respectively withThe first end 14a connections of the water inlet 12b of second water pump 12 and the second expansion tank 14, the second end 14b of the second expansion tank 14 withThe water inlet 12b connections of second water pump 12.Therefore, for coolant liquid after the cooling of radiator 13, a branch divides coolant liquid straightIt connects and is recycled back to the second water pump 12, a part of coolant liquid is first recycled to the second expansion tank 14, after the second expansion tank 14, is recycled back toSecond water pump 12.
Since the heat in coolant liquid can be diffused by radiator 13 by air, then the electric drive cooling circuitWhen middle progress electric drive cooling time is longer, the gas pressure intensity in electric drive cooling circuit may increase, to influence to cool downLiquid recycles in electric drive cooling circuit, and then leads to that the efficiency to cool down to electric drive is low, poor reliability.Therefore, can make to dissipateThe second end 13b of hot device 13 is also connect with the second expansion tank 14 while being connect with the water outlet 12b of the second water pump 12, works as electricityIt, can be by the second expansion tank 14 to electricity when the gas pressure intensity in cooling circuit being driven to be greater than or equal to the second preset pressure threshold valueGas in driving cooling circuit is exhausted.It is swollen by second but after being connect with the second expansion tank 14 due to radiator 13Swell 14 includes not only because dissipating thermogenetic gas, further includes the coolant liquid after part heat dissipation, if it is swollen to be recycled to secondThe coolant liquid of swell 14 is excessive, then coolant liquid may block the second expansion tank 14, causes under 14 exhaust effect of the second expansion tankDrop, or even can not be vented.Therefore, in order to ensure the exhaust effect of the second expansion tank 14, the second end 14b of the second expansion tank 14 withThe water inlet 12b connections of second water pump 12, so as to so that the coolant liquid for being recycled to the second expansion tank 14 recycles the second water pump 12.
In addition, the MCU11 and electric drive 10 that include due to electric drive cooling circuit belong to the important part of electric vehicle,It is usually required to be kept in normal operating temperature, it therefore, not only can be in order to improve the efficiency to cool down to electric drive 10Radiator 13 is connect with the second expansion tank 14, MCU11 can also be connect 14 with the second expansion tank, it is cold to electric drive to accelerateBut the speed that the gas in circuit is exhausted.
It should be noted that the third preset temperature is the temperature for the electric drive work for limiting electric vehicle, the third is pre-If temperature can be arranged in advance, for example, the third preset temperature can be 60 degrees Celsius, 70 degrees Celsius etc..This is second defaultAir pressure threshold value can be arranged in advance, for example, the second preset pressure threshold value can be 100 Pascals, 200 Pascals etc..
In embodiments of the present invention, radiator can be connect with the second expansion tank respectively with MCU in electric drive cooling circuit,To accelerate the speed that the gas in electric drive cooling circuit is exhausted in the second expansion tank, gas is avoided to electric driveThe influence to cool down improves the efficiency to cool down to electric drive.
Fig. 3 is a kind of flow chart of battery temperature adjusting method provided in an embodiment of the present invention, and referring to Fig. 3, this method is answeredFor in electric vehicle, which to include battery temperature regulating system, this method shown in above-mentioned Fig. 2A-Fig. 2 D are anyInclude the following steps.
Step 301：Electric vehicle detects the temperature of the battery of electric vehicle.
Since in general, battery usually has the temperature range for being suitble to work, when the temperature of the battery of electric vehicleWhen spending high, the temperature range for being suitble to battery work may be exceeded, at this point, the discharge capability of battery will decline, to meetingFor the driving for influencing to electric vehicle, traffic safety seriously may result in.Simultaneously as the battery of electric vehicle is largelyLithium battery, and lithium battery carries out charging operations in low temperature and easilys lead to battery short circuit, to cause the danger such as explosionDanger, therefore, when the temperature of battery is relatively low, does not allow to charge the battery operation.Therefore, in order to ensure that battery is normally putElectricity, electric vehicle can normal driving, and in order to ensure cell safety, it usually needs to the temperature of the battery of electric vehicle intoRow detection.
Wherein, electric vehicle can be with the temperature of the battery of active detecting electric vehicle, can also passive detection electric vehicleBattery temperature.When electric vehicle actively detects the temperature of the battery of electric vehicle, which can detect in real timeThe temperature of the battery of the electric vehicle, can also be every the temperature of the battery of the primary electric vehicle of the first specified time interval detectionDegree.The first specified time interval can be arranged in advance, for example, first specified time interval can be 5 minutes, 10 minutes,30 minutes etc..
In addition, when the temperature of the battery of the electric vehicle passive detection electric vehicle, which can receive temperatureDegree detection instruction, and when receiving temperature detection instruction, detect the temperature of the battery of electric vehicle.
It should be noted that temperature of the temperature detection instruction for the battery to electric vehicle is detected, the temperatureDetection instruction can carry out specified operation to the vehicle-carrying display screen of electric vehicle by user and trigger, and can also be user to movementThe display screen of terminal carries out specified operation after triggering, and electric vehicle is sent to by mobile terminal, which is can be withThe terminal that electric vehicle is communicated, the specified operation can be clicking operation, slide, voice operating etc..
Furthermore the temperature of the battery of detection electric vehicle for convenience, can usually be arranged temperature sensor on battery,Electric vehicle can detect the temperature of the battery of electric vehicle by the temperature sensor of setting.
Step 302：When the temperature of the battery of electric vehicle is less than or equal to the first preset temperature, electric vehicle passes through thisBattery heating circuit in battery temperature regulating system heats the battery, to realize the liter to the battery of the electric vehicleTemperature.
It should be noted that first preset temperature is the temperature for ensureing the battery of electric vehicle and charging normal, this firstPreset temperature can be arranged in advance, for example, first preset temperature can be 5 degrees Celsius, 10 degrees Celsius etc..
Since the battery of electric vehicle is largely lithium battery, and lithium battery carries out charging operations very in low temperatureBe easy to cause battery short circuit, to cause the danger such as explosion, therefore, in order to ensure cell safety, be less than when the temperature of battery orWhen equal to the first preset temperature, electric vehicle carries out the battery by the battery heating circuit in the battery temperature regulating systemHeating.
It can be seen from the above, the battery heating circuit includes the first water pump and heater, therefore, electric vehicle passes through batteryThe operation that battery heating circuit in humidity control system heats battery can be：The switch for controlling the first water pump is openedIt opens, when so that the coolant liquid in the first water pump recycling in battery heating circuit, heater is to the cooling in battery heating circuitLiquid is heated, and when the coolant liquid after heating is recycled to battery pack, is heated to the battery in battery pack.
Further, due to when coolant temperature increases, might have part coolant liquid gaseous state due to high temperature, toCause air pressure in battery heating circuit to increase, influence coolant liquid and recycled in battery heating circuit, and then causes to heat batteryEfficiency is low, poor reliability, therefore, in order to improve the efficiency and reliability heated to battery, the battery heating circuit is alsoIncluding the first expansion tank.When electric vehicle by the battery heating circuit in battery temperature regulating system carries out battery heating itAfterwards, the gases affect in battery heating circuit can also detect the battery to the heating to battery, the electric vehicle in order to preventGas pressure intensity in heating circuit；When the gas pressure intensity is greater than or equal to the first preset pressure threshold value, first expansion is openedBox opening, so that the first expansion tank discharges the gas in the battery heating circuit.
It should be noted that the first preset pressure threshold value can be arranged in advance, for example, the first preset pressure threshold value canThink 100 Pascals, 200 Pascals etc..
Wherein, since the gas in battery heating circuit can be generated in COOLANT TEMPERATURE, electric vehicle canIt, can also be primary every the interval detection of the second specified time with real-time detection gas pressure during being heated to batteryGas pressure intensity in the battery warm-up circuit.The second specified time interval can be arranged in advance, for example, the specified time intervalIt can be 5 minutes, 10 minutes, 30 minutes etc..
In addition, when the electric vehicle can also receive pressure detection instruction during being heated to battery, it is rightGas pressure intensity in the battery warm-up circuit is detected.Pressure detection instruction is for the gas pressure in battery warm-up circuitIt is detected by force, pressure detection instruction can equally be triggered by user by specified operation.
It is worth noting that when battery heating circuit includes the first expansion tank, which can be by batteryGas in heating circuit is eliminated so that is full of coolant liquid in battery heating circuit, battery heating circuit is promoted to carry out batteryThe efficiency of heating.
Step 303：When the temperature of the battery of the electric vehicle is greater than or equal to the second preset temperature, electric vehicle passes throughBattery cooling circuit in the battery temperature regulating system cools down the battery, to realize to the battery of the electric vehicleCooling.
It should be noted that second preset temperature, which is the battery of limitation electric vehicle, carries out the temperature of electric discharge work, it shouldSecond preset temperature can be arranged in advance, for example, second preset temperature can be 60 degrees Celsius, 70 degrees Celsius etc..
Due to when the temperature of the battery of the electric vehicle is greater than or equal to the second preset temperature, illustrating the current electronic vapourThe temperature of the battery of vehicle has been more than to be suitble to the temperature of battery regular picture, and the battery of electric vehicle possibly can not continue in height at this timeIt discharges under temperature, will cause electric vehicle can not normally travel alternatively, the battery of electric vehicle continues electric discharge at high temperature.Therefore, in order to make the battery regular picture of electric vehicle, make electric vehicle normal driving, in the battery temperature when electric vehicleWhen degree is greater than or equal to the second preset temperature, electric vehicle is by the battery cooling circuit in the battery temperature regulating system to thisBattery is cooled down, to realize the cooling to the battery of the electric vehicle.
Wherein, by above-mentioned Fig. 2A it is found that the battery cooling circuit includes air compressor machine, condenser and the first solenoid valve, therefore,Electric vehicle carries out cooling operation by the battery cooling circuit in battery temperature regulating system to battery：Control theOne solenoid valve is opened, so that the refrigerant that condenser provides is in the battery cooling circuit when recycling, the air compressor machine is by the refrigerationAgent is converted into liquid by gaseous state, and when refrigerant circulation to battery pack of liquid state takes away the heat that battery generates in the battery packAmount realizes the cooling to the battery.
Further, it due to sometimes may be because of weather, needs to cool down to crew module, and the battery cools backCan also include evaporator and second solenoid valve in road.Therefore, when electric vehicle opens air conditioner refrigerating function, the electric vehicleSecond solenoid valve unlatching can also be controlled, when so that the refrigerant of liquid state entering evaporator, which can be by liquid stateRefrigerant be converted into gaseous state, and the refrigerant of gaseous state shape is diffused to the crew module of the electric vehicle, to realize to the occupantThe cooling in cabin.
In embodiments of the present invention, electric vehicle can detect battery temperature, and be less than or equal to the in the temperature of batteryWhen one preset temperature, battery can be heated by battery heating circuit, the heating to battery is completed, when the temperature of batteryWhen degree is greater than or equal to the second preset temperature, battery can be cooled down by battery cooling circuit, be completed to batteryCooling.Since there is no the circuits heated up to crew module in entire battery temperature regulating system, in regulating cell temperatureThe influence that battery temperature is adjusted without considering crew module's warm-up circuit.Meanwhile in the control for being heated up or being cooled down to batteryWhen, due to battery cooling circuit and battery warm-up circuit only at battery pack it is relevant, to battery cooling circuit and battery literThe control of temperature loops is independent of each other.It that is to say, when battery cooling circuit damages, can still control battery warm-up circuit to electricityPond is heated, and when battery heating circuit damages, can still be controlled battery cooling circuit and be cooled down to battery, to carryThe high reliability that battery is adjusted into trip temperature.
It should be noted that：The battery temperature regulating system that above-described embodiment provides is when carrying out battery temperature adjusting, onlyThe example of the division of the above functional modules, in practical application, can as needed and by above-mentioned function distribution byDifferent function modules is completed, i.e., the internal structure of system is divided into different function modules, described above complete to completePortion or partial function.In addition, battery temperature regulating system and battery temperature adjusting method embodiment that above-described embodiment providesBelong to same design, specific implementation process refers to embodiment of the method, and which is not described herein again.
Fig. 4 shows the structure diagram for the electric vehicle that an illustrative embodiment of the invention provides.In general, electric vehicleInclude：Processor 401 and memory 402.
Processor 401 may include one or more processing cores, such as 4 core processors, 8 core processors etc..PlaceDSP (Digital Signal Processing, Digital Signal Processing), FPGA (Field- may be used in reason device 401Programmable Gate Array, field programmable gate array), PLA (Programmable LogicArray, may be programmedLogic array) at least one of example, in hardware realize.Memory 402 may include one or more computer-readable storagesMedium, the computer readable storage medium can be non-transient.Memory 402 may also include high-speed random access memory,And nonvolatile memory, such as one or more disk storage equipments, flash memory device.In some embodiments, it depositsFor storing at least one instruction, which is used for non-transient computer readable storage medium in reservoir 402It is performed to realize the battery temperature adjusting method of embodiment of the method offer in the application by processor 401.
In some embodiments, electric vehicle is also optional includes：CAN (ControllerAreaNetwork, controllerLocal area network) bus 403 and at least one peripheral equipment.Processor 401 and memory 402 can by CAN bus 403 with it is eachA peripheral equipment connection.Specifically, peripheral equipment includes：Radio circuit 404, touch display screen 405, camera 406, audio-frequency electricAt least one of road 407, positioning component 408 and power supply 409.
CAN bus 403 can be used at least one peripheral equipment being connected to processor 401 and memory 402.At someIn embodiment, processor 401, memory 402 and CAN bus 403 are integrated on same chip or circuit board；Some otherIn embodiment, any one or two in processor 401, memory 402 and CAN bus 403 can in individual chip orIt is realized on circuit board, the present embodiment is not limited this.
Radio circuit 404 is for receiving and emitting RF (Radio Frequency, radio frequency) signal, also referred to as electromagnetic signal.It penetratesFrequency circuit 404 is communicated by electromagnetic signal with communication network and other communication equipments.Radio circuit 404 turns electric signalIt is changed to electromagnetic signal to be sent, alternatively, the electromagnetic signal received is converted to electric signal.Radio circuit 404 can pass throughAt least one wireless communication protocol is communicated with other terminals.The wireless communication protocol includes but not limited to：WWW, cityDomain net, Intranet, each third generation mobile communication network (2G, 3G, 4G and 5G), WLAN and/or WiFi (WirelessFidelity, Wireless Fidelity) network.In some embodiments, radio circuit 404 can also include NFC (NearFieldCommunication, wireless near field communication) related circuit, the application is not limited this.
Display screen 405 is for showing UI (UserInterface, user interface).The UI may include figure, text, figureMark, video and its their arbitrary combination.When display screen 405 is touch display screen, display screen 405 also there is acquisition to showThe ability of the surface of screen 405 or the touch signal of surface.The touch signal can be used as control signal to be input to processor401 are handled.
CCD camera assembly 406 is for acquiring image or video.Optionally, CCD camera assembly 406 is at least two.
Voicefrequency circuit 407 may include microphone and loud speaker.Microphone is used to acquire the sound wave of user and environment, and willSound wave, which is converted to electric signal and is input to processor 401, to be handled, or is input to radio circuit 404 to realize voice communication.For stereo acquisition or the purpose of noise reduction, microphone can be multiple, be separately positioned on the different parts of electric vehicle.MikeWind can also be array microphone or omnidirectional's acquisition type microphone.Loud speaker is then used to that processor 401 or radio circuit will to be come from404 electric signal is converted to sound wave.Loud speaker can be traditional wafer speaker, can also be piezoelectric ceramic loudspeaker.WhenWhen loud speaker is piezoelectric ceramic loudspeaker, the audible sound wave of the mankind can be not only converted electrical signals to, it can also be by telecommunicationsNumber the sound wave that the mankind do not hear is converted to carry out the purposes such as ranging.
Positioning component 408 is used to position the current geographic position of electric vehicle, to realize navigation or LBS(LocationBased Service, location based service).Positioning component 408 can be the GPS (Global based on the U.S.Positioning System, global positioning system), China dipper system or Russia Galileo system positioning groupPart.
Power supply 409 is used to be powered for the various components in electric vehicle.
In some embodiments, electric vehicle further include there are one or multiple sensors 410.The one or more sensors410 include but not limited to：Temperature sensor 411.
It that is to say, the embodiment of the present invention provides not only a kind of battery temperature adjusting method for executing above-described embodimentElectric vehicle, additionally provide a kind of computer readable storage medium, computer program be stored in the storage medium, the calculatingThe battery temperature adjusting method of above-described embodiment may be implemented in machine program when being executed by processor.
It will be understood by those skilled in the art that structure shown in Fig. 4 does not constitute the restriction to electric vehicle, can wrapIt includes than illustrating more or fewer components, either combine certain components or is arranged using different components.
One of ordinary skill in the art will appreciate that realizing that all or part of step of above-described embodiment can pass through hardwareIt completes, relevant hardware can also be instructed to complete by program, the program can be stored in a kind of computer-readableIn storage medium, storage medium mentioned above can be read-only memory, disk or CD etc..
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all the present invention spirit andWithin principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention.