WO2022007684A1 - 一种热管理方法、装置和电动车辆 - Google Patents
一种热管理方法、装置和电动车辆 Download PDFInfo
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- WO2022007684A1 WO2022007684A1 PCT/CN2021/103668 CN2021103668W WO2022007684A1 WO 2022007684 A1 WO2022007684 A1 WO 2022007684A1 CN 2021103668 W CN2021103668 W CN 2021103668W WO 2022007684 A1 WO2022007684 A1 WO 2022007684A1
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- electric vehicle
- electric
- seat
- battery
- temperature
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/24—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
- B60L58/27—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries by heating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00357—Air-conditioning arrangements specially adapted for particular vehicles
- B60H1/00385—Air-conditioning arrangements specially adapted for particular vehicles for vehicles having an electrical drive, e.g. hybrid or fuel cell
- B60H1/00392—Air-conditioning arrangements specially adapted for particular vehicles for vehicles having an electrical drive, e.g. hybrid or fuel cell for electric vehicles having only electric drive means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
- B60H1/00735—Control systems or circuits characterised by their input, i.e. by the detection, measurement or calculation of particular conditions, e.g. signal treatment, dynamic models
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
- B60H1/00735—Control systems or circuits characterised by their input, i.e. by the detection, measurement or calculation of particular conditions, e.g. signal treatment, dynamic models
- B60H1/00742—Control systems or circuits characterised by their input, i.e. by the detection, measurement or calculation of particular conditions, e.g. signal treatment, dynamic models by detection of the vehicle occupants' presence; by detection of conditions relating to the body of occupants, e.g. using radiant heat detectors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
- B60H1/00814—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation
- B60H1/00878—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation the components being temperature regulating devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/56—Heating or ventilating devices
- B60N2/5678—Heating or ventilating devices characterised by electrical systems
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D1/00—Steering controls, i.e. means for initiating a change of direction of the vehicle
- B62D1/02—Steering controls, i.e. means for initiating a change of direction of the vehicle vehicle-mounted
- B62D1/04—Hand wheels
- B62D1/06—Rims, e.g. with heating means; Rim covers
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/615—Heating or keeping warm
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
- H01M10/625—Vehicles
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6567—Liquids
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/66—Heat-exchange relationships between the cells and other systems, e.g. central heating systems or fuel cells
- H01M10/663—Heat-exchange relationships between the cells and other systems, e.g. central heating systems or fuel cells the system being an air-conditioner or an engine
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
Definitions
- the present disclosure relates to the technical field of vehicles, and in particular, to a thermal management device, a device, and an electric vehicle.
- Electric vehicles are powered by on-board batteries and drive wheels with motors. They have been fully developed due to their energy-saving and environmental protection features.
- the electric vehicles may include pure electric vehicles, hybrid electric vehicles, fuel cell vehicles, and the like.
- the activity of the battery decreases, and the available power decreases, which reduces the battery life.
- the battery may need to be heated by an electric heater while providing power, so that the electric vehicle can be used in a low temperature environment such as winter.
- the power consumption is large, resulting in poor battery life and reduced vehicle mileage.
- a device that designs an independent electric heater for the power battery is usually used to heat the battery in a low temperature environment, thereby maintaining the battery activity.
- the electric heater is a high-energy-consuming component. While increasing the battery temperature, it also consumes the battery power. Even if the battery activity is maintained, it still accelerates the consumption of the battery power, which increases the battery life and reduces the vehicle mileage. Improvement is limited.
- the present disclosure aims to provide a thermal management device, a device and an electric vehicle to solve the problems of large power consumption, poor battery life, and reduced vehicle mileage when an electric vehicle runs in a low temperature environment.
- a method of thermal management may include:
- the electric heater of at least one zone in the electric vehicle is controlled according to the seat load information.
- the partitions include a driver partition and an occupant partition, and controlling the electric heater of at least one partition in the electric vehicle according to the seat load information includes:
- the electric seat heater of the occupant section in the electric vehicle is controlled.
- the method further includes:
- the air conditioner of the electric vehicle is controlled.
- Also includes:
- a blower cavity of at least one zone in the electric vehicle is controlled based on the seat load information.
- the preset temperature condition is at least one of the following:
- the temperature of the battery is lower than the first preset temperature
- the outdoor temperature of the electric vehicle is less than a second preset temperature
- the temperature of the cooling liquid of the motor cooling system is lower than the third preset temperature.
- the thermal management method described in the present disclosure has the following advantages:
- the cooling liquid in the motor cooling system of the electric vehicle can be directed to the battery.
- the system is used to absorb the waste heat generated by the operation of the motor. Therefore, directing the coolant to the battery can maintain the temperature of the battery without using an independent electric heater to heat the battery, thereby maintaining the activity of the battery and avoiding the extra consumption of electricity;
- the situation of the people in the electric vehicle can be determined, so as to control the electric heater of at least one partition in the electric vehicle. Under the condition that people ride comfortably, the power consumption caused by heating the idle partition is avoided, the battery life is improved, and the mileage attenuation is improved.
- Another object of the present disclosure is to provide a thermal management device to solve the problems of large power consumption, poor battery life and reduced vehicle mileage when an electric vehicle is driven in a low temperature environment.
- a thermal management device may include:
- a temperature condition determination module configured to direct the coolant in the electric motor cooling system of the electric vehicle to the battery and/or obtain seat loads of different zones in the electric vehicle under the condition that the electric vehicle meets the preset temperature condition information;
- a zone heating control module configured to control the electric heater of at least one zone in the electric vehicle according to the seat load information under the condition of acquiring seat load information of different zones in the electric vehicle.
- the partition includes a driver partition and an occupant partition
- the partition heating control module includes:
- a driver zone heating control sub-module configured to control the steering wheel electric heater and the seat electric heater of the driver zone in the electric vehicle according to the seat load information of the driver zone;
- the occupant partition control sub-module is configured to control the seat electric heater of the occupant partition in the electric vehicle according to the seat load information of the occupant partition.
- the device also includes:
- an indoor temperature acquisition module for acquiring the indoor temperature of the electric vehicle
- An air conditioning cycle control module configured to control the air conditioning of the electric vehicle according to the indoor temperature.
- the air conditioning cycle control module is further configured to control the blower cavity of at least one partition in the electric vehicle according to the seat load information.
- the preset temperature condition is at least one of the following:
- the temperature of the battery is lower than the first preset temperature
- the outdoor temperature of the electric vehicle is less than a second preset temperature
- the temperature of the cooling liquid of the motor cooling system is lower than the third preset temperature.
- Embodiments of the present disclosure also provide an electric vehicle, which is used to implement the above thermal management method, or the electric vehicle includes the above thermal management device.
- thermal management device and the above thermal management method have the same advantages over the prior art, which will not be repeated here.
- FIG. 1 is a flowchart of steps of a thermal management method provided by an embodiment of the present disclosure
- FIG. 2 is a flowchart of steps of another thermal management method provided by an embodiment of the present disclosure
- FIG. 3 is a structural block diagram of a thermal management apparatus provided by an embodiment of the present disclosure.
- FIG. 4 is a schematic diagram of a hardware structure of an electric vehicle provided by an embodiment of the present disclosure.
- Figure 5 schematically shows a block diagram of a computing processing device for performing methods according to the present disclosure.
- Figure 6 schematically shows a memory unit for holding or carrying program code implementing the method according to the present disclosure.
- FIG. 1 is a flowchart of steps of a thermal management method provided by an embodiment of the present disclosure. As shown in FIG. 1 , the method may include:
- Step 101 when the electric vehicle meets the preset temperature condition, direct the cooling liquid in the motor cooling system of the electric vehicle to the battery, and/or obtain seat load information of different zones in the electric vehicle.
- an electric vehicle refers to a vehicle that uses a battery to provide power to a motor and drives the wheels through the motor.
- an electric vehicle can also provide air conditioning, heating and cooling functions, entertainment functions, etc. based on the battery.
- the power of the battery is consumed.
- the preset temperature conditions can be set according to parameters such as the driving environment of the electric vehicle, the battery performance of the electric vehicle, etc., so that when the ambient temperature affects the battery activity, thermal management can be performed in time to improve the battery life.
- the motor can convert the electrical energy provided by the battery into mechanical energy to drive the wheels. During the energy conversion, part of the loss will be dissipated in the form of heat. Cool down. Electric vehicles can be liquid-cooled, and the heat emitted by the motor can be absorbed by the coolant in the motor cooling system, thereby preventing the motor from overheating. Therefore, when the electric vehicle meets the preset temperature condition, the cooling liquid in the motor cooling system of the electric vehicle can be directed to the battery. Since the cooling liquid absorbs the heat emitted by the motor, the battery can be heated, thereby maintaining the battery temperature to further maintain battery activity and improve battery life.
- the electric vehicle may be divided into zones.
- each zone may include at least one seat and at least one electric heater, and different zones may include different seats and electric heaters.
- Personnel can be divided according to the number, size, and position of the seats of the electric vehicle, for example, each seat is a partition, each row of seats is a partition, etc., which is not specifically limited in the embodiment of the present disclosure.
- the seat load information is information collected by a load sensor provided on the seat and reflects whether there is a person sitting on the seat.
- the seat load information may include pressure information, such as seat The amount of pressure on the seat surface of the seat, the area under pressure on the seat surface of the seat, the amount of pressure on the backrest of the seat, etc.; further, in order to avoid the interference of judgment caused by placing other objects on the seat, the seat The load information may also include temperature information, such as the temperature of objects in contact with the seat surface of the seat, the temperature of objects in contact with the backrest of the seat, and the like.
- Step 102 in the case of acquiring seat load information of different zones in the electric vehicle, control the electric heater of at least one zone in the electric vehicle according to the seat load information.
- the electric heater can be controlled to start heating when there are personnel in the partition; when there are no personnel in the partition, the electric heater can be controlled to be turned off, so as to ensure a suitable driving environment for personnel and avoid It eliminates the power waste caused by heating the idle partition without personnel, thus optimizing the power distribution and improving the battery life.
- the cooling liquid in the motor cooling system of the electric vehicle can be directed to the battery.
- the system is used to absorb the waste heat generated by the operation of the motor. Therefore, directing the coolant to the battery can maintain the temperature of the battery without using an independent electric heater to heat the battery, thereby maintaining the activity of the battery and avoiding the extra consumption of electricity;
- the situation of the people in the electric vehicle can be determined, so as to control the electric heater of at least one partition in the electric vehicle. Under the condition that people ride comfortably, the power consumption caused by heating the idle partition is avoided, the battery life is improved, and the mileage attenuation is improved.
- FIG. 2 is a flowchart of steps of another thermal management method provided by an embodiment of the present disclosure. As shown in FIG. 2 , the method may include:
- Step 201 when the electric vehicle meets the preset temperature condition, direct the cooling liquid in the motor cooling system of the electric vehicle to the battery, and/or obtain seat load information of different zones in the electric vehicle.
- step 201 may correspond to the relevant description of the foregoing step 101, which is not repeated here in order to avoid repetition.
- the preset temperature conditions include at least one of the following:
- the temperature of the battery is lower than the first preset temperature
- the outdoor temperature of the electric vehicle is less than a second preset temperature
- the temperature of the cooling liquid of the motor cooling system is lower than the third preset temperature.
- the preset temperature condition may be to determine whether the temperature of the battery is lower than the first preset temperature. Since the temperature of the battery can directly reflect the current state of the battery, the judgment based on the temperature of the battery can Improve the efficiency and accuracy of the judgment, wherein the first preset temperature may be measured or preset according to the battery performance, and can cause the battery activity to decrease. Lower, therefore, 10°C is taken as the first preset temperature of the battery.
- the preset temperature condition may be determining whether the outdoor temperature of the electric vehicle is lower than the second preset temperature, wherein the outdoor temperature may be the ambient temperature in the driving environment of the electric vehicle. Since the outdoor temperature will cause the temperature of the battery to change, when the outdoor temperature is too low, the temperature of the battery will also decrease, resulting in a decrease in the activity of the battery.
- the second preset temperature may be measured to cause the temperature of the battery to decrease to the outdoor temperature of the first preset temperature, or may be a second preset temperature preset according to the heat dissipation efficiency of the vehicle and the performance of the battery , if it is detected that the outdoor temperature is below 10°C, the temperature of the battery will decrease and the activity of the battery will decrease. Therefore, 10°C can be used as the second preset temperature of the outdoor temperature, and the second preset temperature can also be 5°C , 0°C, etc.
- the heat dissipation of the motor is a priority. Therefore, when the temperature of the motor is within the normal working range, it can be considered to use the heat dissipated by the motor to use the coolant to heat the battery. In order to ensure the activity of the battery, but when the temperature of the motor exceeds the normal working range, the motor needs to be cooled first. Among them, the cooling liquid exchanges heat with the motor during the cooling process. Therefore, the temperature of the cooling liquid can reflect the temperature of the motor.
- the temperature range of the normal operation of the motor is 40 °C
- the third preset temperature When the temperature of the cooling liquid is below 40°C, the battery may be heated by the cooling liquid to ensure the activity of the battery, and the third preset temperature may also be 30°C, 35°C, and the like.
- the cooling liquid in the motor cooling system of the electric vehicle can be directed to the battery, and the seat load information of different zones in the electric vehicle can be obtained.
- different thermal management solutions can also be selected according to different preset temperature conditions that the electric vehicle complies with.
- the coolant in the motor cooling system is directed to the battery; when the temperature of the battery is less than the first preset temperature, and/or the outdoor temperature of the electric vehicle is less than the second preset temperature, but the temperature of the coolant in the motor cooling system is greater than or equal to the first preset temperature In the case of three preset temperatures, obtain the seat load information of different zones in the electric vehicle.
- Those skilled in the art can select a thermal management solution according to the actual situation of the electric vehicle, which is not specifically limited in the embodiments of the present disclosure.
- the electric vehicle when the electric vehicle meets the preset temperature condition, it is also possible to inquire whether the personnel in the electric vehicle need to adopt a thermal management solution to reduce power consumption, and determine whether to perform thermal management according to the selection operation of the personnel.
- personnel choose to adopt a thermal management scheme to reduce power consumption it can be determined that the electric vehicle needs to be driven in an energy-saving mode. For example, for a hybrid electric vehicle, the driving mode can be further switched to or maintained in ECO (Economy, Economical). ) mode, thereby further improving the battery life of the vehicle and increasing the mileage.
- ECO Economic, Economical
- Step 202 in the case of acquiring seat load information of different zones in the electric vehicle, control the electric heater of at least one zone in the electric vehicle according to the seat load information.
- step 202 may correspond to the relevant description of the foregoing step 102, which is not repeated here in order to avoid repetition.
- controlling the electric heater of at least one zone in the electric vehicle according to the seat load information includes:
- Sub-step S11 Control the electric steering wheel heater and the electric seat heater in the driver's sub-area in the electric vehicle according to the seat load information of the driver's sub-area.
- the sub-step S11 includes:
- Sub-step S111 when it is determined according to the seat load information that there is a driver in the driver zone, control the steering wheel electric heater and the seat electric heater in the driver zone in the electric vehicle to start;
- Sub-step S112 in the case where it is determined according to the seat load information that there is no driver in the driver zone, control the steering wheel electric heater and the seat electric heater of the driver zone in the electric vehicle to be turned off .
- the electric vehicle can be divided according to the functions of different seats in the electric vehicle.
- the electric vehicle seat includes a seat for the driver and a seat for other passengers
- the electric vehicle can be divided into Separate the driver and passengers.
- the seat, steering wheel, accelerator pedal, brake and gear lever, etc. may be included in the driver zone.
- the electric seat heater in the driver zone can be controlled to activate the heated seat. Holding the steering wheel for a long time, therefore, the steering wheel heater can also be controlled to activate the heated steering wheel, thus further ensuring that the driver is at a suitable temperature.
- Sub-step S12 Control the electric seat heater of the passenger compartment in the electric vehicle according to the seat load information of the passenger compartment.
- the sub-step S12 includes:
- Sub-step S121 when it is determined according to the seat load information that there is an occupant in the occupant compartment, control the electric seat heater of the occupant compartment in the electric vehicle to start;
- Sub-step S122 when it is determined according to the seat load information that there is no occupant in the occupant compartment, control the electric seat heater of the occupant compartment in the electric vehicle to be turned off.
- the passenger compartment may include seats, and when the seat load information of the passenger compartment indicates that there are passengers in the passenger compartment, the electric seat heater of the passenger compartment may be controlled to heat the seat, Thereby, the purpose of partition heating is achieved, and the problem of power waste caused by heating unmanned and idle partitions is avoided.
- the electric heater may be disposed at any position of the seat, for example, may be disposed in at least one of the headrest, seat surface, backrest, armrest, etc. of the seat, which is not specifically limited in this embodiment of the present disclosure. Wherein, the electric heater provided on the seat surface may be in the seat cushion of the seat.
- Step 203 Acquire the indoor temperature of the electric vehicle.
- the indoor temperature of the electric vehicle can reflect the actual temperature of the environment where the driver, passengers, etc. are located. Therefore, when the electric heater of the partition is controlled to be turned on or off according to the seat load information, the electric vehicle can also be obtained. to determine the actual temperature of the driving environment inside the electric vehicle.
- Step 204 Control the air conditioner of the electric vehicle according to the indoor temperature.
- the indoor temperature may reflect the actual temperature of the driving environment in the electric vehicle, and controlling the air conditioner may be to control the air conditioner to turn off, heat, cool, open the outer circulation, and open the inner circulation according to the indoor temperature.
- the air conditioner can be turned on for heating or cooling to keep the temperature of the driving environment within a suitable range. It can be determined according to the driving needs of electric vehicles, indoor environment, outdoor environment and personnel habits, etc. Air conditioning for temperature-controlled electric vehicles.
- the step 204 includes:
- Sub-step S21 when the indoor temperature is lower than a preset low temperature, control the air conditioner to heat;
- Sub-step S22 when the indoor temperature is greater than a preset high temperature, control the air conditioner to turn off.
- the electric vehicle when the electric vehicle meets the preset temperature condition, at this time, the electric vehicle is in a low temperature environment that affects the activity of the battery, and when the corresponding zone electric heater is turned on and/or the battery is heated by the residual heat of the coolant,
- you can turn on the air conditioner for heating when the indoor temperature is low for example, when the indoor temperature is lower than the preset low temperature of 0°C, 1°C, 2°C, etc.
- the air conditioner can be turned off to reduce energy consumption.
- the air conditioner when the indoor temperature is higher than the preset high temperature of 5°C, 8°C, 10°C, etc., the air conditioner can be turned off, and the personnel can be heated by the electric heater corresponding to each zone.
- the preset low temperature and a preset high temperature can be set according to specific requirements, which are not specifically limited in this embodiment of the present disclosure.
- the step 204 includes:
- Sub-step S31 when the indoor temperature is lower than the preset low temperature, control the air conditioner to open the inner circulation;
- Sub-step S32 when the indoor temperature is greater than a preset high temperature, control the air conditioner to open an external circulation.
- the air conditioner of the electric vehicle can also perform internal circulation or external circulation.
- the external circulation can use the fan to exchange the air inside and outside the cockpit of the electric vehicle to supplement fresh air.
- the internal circulation is through the fan in the cockpit of the electric vehicle. Air circulation is carried out inside, due to the exchange of internal and external air in the external circulation, resulting in the exchange of heat inside and outside, while the internal circulation only conducts air circulation in the cockpit of the electric vehicle, which avoids the exchange of heat inside and outside.
- the inner circulation and outer circulation of the electric vehicle can also be controlled according to the indoor temperature.
- the outer circulation can be used to keep the indoor air of the electric vehicle fresh.
- Internal circulation can be used when the indoor temperature is low to avoid heat loss.
- the air circulation of the electric vehicle can be switched to or maintained in the internal circulation, so as to avoid heat loss, which is conducive to rapidly increasing the indoor temperature of the electric vehicle, thereby reducing the energy consumption of the air conditioner and further saving energy. battery level.
- Step 205 Control the blower cavity of at least one partition of the electric vehicle according to the seat load information.
- the electric vehicle may also be provided with corresponding blower cavities in different regions.
- the heated air can be guided to the corresponding regions by opening the corresponding blower cavity, so that the air heating has Targeted, improve the speed of zone heating and reduce the energy consumption of heating.
- the step 205 includes:
- Sub-step S41 when it is determined according to the seat load information that there is a person in the partition, control the blower cavity corresponding to the partition to open;
- Sub-step S42 in the case that there is no person in the partition according to the seat load information, control the blower cavity corresponding to the partition to be closed.
- the blower cavity corresponding to the partition in the electric vehicle can be controlled according to the seat load information, and when the seat load information indicates that there are people in the partition, the blower corresponding to the partition can be turned on
- the cavity makes the direction of the heated air flow more targeted, avoids the problem of the slow rise of the indoor temperature of the electric vehicle caused by the escape of the heated air, reduces the energy consumption of the air conditioner, and further saves the battery power; in the seat load information Indicates that when there are no personnel in the partition, the blower cavity of the partition can be closed to avoid wasting energy consumption.
- the partitions may include driver partitions, passenger partitions, and the like; personnel may include drivers, passengers, and the like.
- the embodiments of the present disclosure can also be applied to other scenarios where the electric vehicle carries pets, goods, and other scenarios that require ambient temperature.
- the above-mentioned thermal management process may be ended.
- the outdoor temperature of the vehicle is greater than or equal to at least one of the second preset temperature and the temperature of the coolant of the motor cooling system is greater than or equal to the third preset temperature;
- the driving mode is switched to Normal (normal) and Sport (sport) mode
- the above thermal management is ended, which is not specifically limited in this embodiment of the present disclosure.
- Sport mode is a sports mode of electric vehicles, emphasizing the power of electric vehicles and weakening the driving mode of vehicle economy
- Normal mode is a balanced driving mode that balances the power and economy of vehicles
- Eco mode is to emphasize the vehicle. economy, and appropriately weaken the sporty driving mode of the vehicle.
- the cooling liquid in the motor cooling system of the electric vehicle can be directed to the battery.
- the system is used to absorb the waste heat generated by the operation of the motor. Therefore, directing the coolant to the battery can maintain the temperature of the battery without using an independent electric heater to heat the battery, thereby maintaining the activity of the battery and avoiding the extra consumption of electricity;
- the situation of the people in the electric vehicle can be determined, so as to control the electric heater of at least one partition in the electric vehicle. Under the condition that people ride comfortably, the power consumption caused by heating the idle partition is avoided, the battery life is improved, and the mileage attenuation is improved.
- FIG. 3 is a structural block diagram of a thermal management apparatus 300 provided by an embodiment of the present disclosure, and the apparatus may include:
- a temperature condition determination module 301 configured to guide the cooling liquid in the motor cooling system of the electric vehicle to the battery, and/or obtain the seats of different zones in the electric vehicle under the condition that the electric vehicle meets the preset temperature condition load information;
- the zone heating control module 302 is configured to control the electric heater of at least one zone in the electric vehicle according to the seat load information in the case of acquiring seat load information of different zones in the electric vehicle.
- the partition includes a driver partition and an occupant partition
- the partition heating control module 302 includes:
- the driver zone heating control sub-module is configured to control the steering wheel electric heater and the seat electric heater of the driver zone in the electric vehicle according to the seat load information of the driver zone.
- driver zone control sub-module includes:
- a driver zone starting unit configured to control a steering wheel electric heater and a seat electric heater of the driver zone in the electric vehicle when it is determined that there is a driver in the driver zone according to the seat load information heater starts;
- a driver zone closing unit configured to control the electric steering wheel heater and the seat of the driver zone in the electric vehicle when it is determined that there is no driver in the driver zone according to the seat load information Electric heater is off.
- the occupant partition control sub-module is configured to control the seat electric heater of the occupant partition in the electric vehicle according to the seat load information of the occupant partition.
- the passenger compartment control sub-module includes:
- an occupant partition starting unit configured to control the electric seat heater to start in the occupant partition in the electric vehicle when it is determined according to the seat load information that there is an occupant in the occupant partition;
- the occupant partition shut-off unit is configured to control the electric seat heater of the occupant partition in the electric vehicle to turn off when it is determined according to the seat load information that there is no occupant in the occupant partition.
- the device further includes:
- an indoor temperature acquisition module for acquiring the indoor temperature of the electric vehicle
- An air conditioning cycle control module configured to control the air conditioning of the electric vehicle according to the indoor temperature.
- the air conditioning cycle control module includes:
- an air conditioner starter module configured to control the air conditioner to heat when the indoor temperature is lower than a preset low temperature
- the air conditioner shutdown sub-module is configured to control the air conditioner to shut down when the indoor temperature is greater than a preset high temperature.
- the air conditioning cycle control module includes:
- an air conditioner inner circulation sub-module configured to control the air conditioner to open the inner circulation when the indoor temperature is lower than the preset low temperature
- the air conditioner external circulation sub-module is configured to control the air conditioner to open the external circulation when the indoor temperature is greater than the preset high temperature.
- the air conditioning cycle control module is further configured to control the blower cavity of at least one partition of the electric vehicle according to the seat load information.
- a blower cavity opening sub-module configured to control the blower cavity corresponding to the partition to open when it is determined according to the seat load information that there are persons in the partition;
- the blower cavity closing sub-module is configured to control the blower cavity corresponding to the partition to close when it is determined according to the seat load information that there is no person in the partition.
- the preset temperature condition is at least one of the following:
- the temperature of the battery is lower than the first preset temperature
- the outdoor temperature of the electric vehicle is less than a second preset temperature
- the temperature of the cooling liquid of the motor cooling system is lower than the third preset temperature.
- the cooling liquid in the motor cooling system of the electric vehicle can be directed to the battery.
- the system is used to absorb the waste heat generated by the operation of the motor. Therefore, directing the coolant to the battery can maintain the temperature of the battery without using an independent electric heater to heat the battery, thereby maintaining the activity of the battery and avoiding the extra consumption of electricity;
- the situation of the people in the electric vehicle can be determined, so as to control the electric heater of at least one partition in the electric vehicle. Under the condition that people ride comfortably, the power consumption caused by heating the idle partition is avoided, the battery life is improved, and the mileage attenuation is improved.
- Embodiments of the present disclosure further provide an electric vehicle, which is used to implement the thermal management method described in any one of FIGS. 1 to 2 , or the electric vehicle includes the thermal management device described in FIG. 3 .
- FIG. 4 is a schematic diagram of the hardware structure of an electric vehicle 400 provided by an embodiment of the present disclosure. As shown in FIG. 4 , when the thermal management method described in FIGS. 1 to 2 is applied in a winter environment, the electric vehicle can be thermally managed The state of the method is set as "winter long cruising range mode".
- the electric vehicle should include: radiator 401, cooling fan 402, motor outlet water temperature sensor 403, three-way valve 404, motor Water pump 405, battery water pump 406, BMS (Battery Management System, battery management system) 407, AC (Air Conditi-oner, air conditioning controller) 408, interior temperature sensor 409, exterior temperature sensor 410, blower cavity partition motor M1411 , blower cavity partition motor M2412, blower cavity partition motor M3413, PTC (Positive Temperature Coefficient, positive temperature coefficient) electric heater 414, PTC electric heater controller 415, BCM (Body Control Module, body controller) 416, Seat load sensor (main driver's seat section) 417, seat load sensor (passenger seat section) 418, seat load sensor (left rear seat section) 419, seat load sensor (right rear seat section) 420, Steering wheel electric heater 421, driver seat electric heater 422, passenger seat electric heater 423, left rear seat electric heater 424, right rear seat electric heater 425, VCU (V
- the above hardware can be connected through the cooling pipeline, the acquisition line, the control line and the CAN bus as shown in Figure 4, wherein the cooling pipeline is used to transmit the cooling liquid, the acquisition line is used to collect the information obtained by the sensor, and the control line is used to To transmit control signals, the CAN (Controller Area Network) bus is a standard bus for automotive computer control systems and embedded industrial control area networks to build a control network for electric vehicles.
- the thermal management method described in any one of FIGS. 1 to 2 can be implemented in the following manner:
- the preset temperature conditions include at least one of the following:
- the temperature of the battery is Tmin_batt ⁇ 10°C;
- the temperature Tmotor of the cooling liquid of the motor cooling system is less than 40°C.
- Step S52 when the HUT 427 receives the request signal for enabling the "long cruising range mode in winter" sent by the VCU 426, it displays a corresponding selection interface, and outputs a corresponding prompt tone to ask the driver whether to turn on the "long cruising range mode in winter";
- Step S53 after the driver selects and confirms to turn on the "long cruising range mode in winter", the HUT427 switches the driving mode of the electric vehicle to or keeps it in the Eco mode, so as to reduce the energy consumption of the whole vehicle, and requests the "long cruising range mode in winter".
- the BCM 416 can pass the seat load sensor (main driver's seat zone) 417, seat load sensor (co-pilot seat zone) 418, seat load sensor (left rear seat zone) 419, seat load sensor (right rear seat zone) 419 in real time.
- VCU_steeringwheel_heatRq 0x1 no reuqest;
- the PTC electric heater 414 can work with a voltage between 250V and 400V, and has high power and high energy consumption.
- AC_PTC_openRq 0x1 no request 0x2 request
- Step S514 when the PTC electric heater 414 is turned on, the VCU 426 sends a turn-on request signal for different cavities of the blower to the AC 408 based on whether there is a load on the seats in each partition.
- step S5166 the VCU 426 controls the three-way valve in the motor cooling system to switch from 1-3 conduction to 2-3 conduction, and can also control the motor water pump 405 and the cooling fan 402.
- the motor water pump 405 drives the cooling liquid
- the waste heat of the motor is absorbed, the cooling liquid is cooled by the radiator 401 , and the cooling fan 402 is used to accelerate the cooling of the radiator.
- step S517 the VCU 426 controls the battery water pump 406 in the battery cooling system to work.
- the temperature of the battery is Tmin_batt>10°C;
- Outdoor temperature of electric vehicle >10°C
- the temperature Tmoto of the cooling liquid of the motor cooling system is >40°C.
- the cooling liquid in the motor cooling system of the electric vehicle can be directed to the battery.
- the system is used to absorb the waste heat generated by the operation of the motor. Therefore, directing the coolant to the battery can maintain the temperature of the battery without using an independent electric heater to heat the battery, thereby maintaining the activity of the battery and avoiding the extra consumption of electricity;
- the situation of the people in the electric vehicle can be determined, so as to control the electric heater of at least one partition in the electric vehicle. Under the condition that people ride comfortably, the power consumption caused by heating the idle partition is avoided, the battery life is improved, and the mileage attenuation is improved.
- the device embodiments described above are only illustrative, wherein the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in One place, or it can be distributed over multiple network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution in this embodiment. Those of ordinary skill in the art can understand and implement it without creative effort.
- Various component embodiments of the present disclosure may be implemented in hardware, or in software modules running on one or more processors, or in a combination thereof.
- a microprocessor or a digital signal processor (DSP) may be used in practice to implement some or all of the functions of some or all of the components in a computing processing device according to embodiments of the present disclosure.
- DSP digital signal processor
- the present disclosure can also be implemented as apparatus or apparatus programs (eg, computer programs and computer program products) for performing some or all of the methods described herein.
- Such a program implementing the present disclosure may be stored on a computer-readable medium, or may be in the form of one or more signals. Such signals may be downloaded from Internet sites, or provided on carrier signals, or in any other form.
- Figure 5 illustrates a computing processing device that may implement methods in accordance with the present disclosure.
- the computing processing device traditionally includes a processor 1010 and a computer program product or computer readable medium in the form of a memory 1020 .
- the memory 1020 may be electronic memory such as flash memory, EEPROM (Electrically Erasable Programmable Read Only Memory), EPROM, hard disk, or ROM.
- the memory 1020 has storage space 1030 for program code 1031 for performing any of the method steps in the above-described methods.
- the storage space 1030 for program codes may include various program codes 1031 for implementing various steps in the above methods, respectively. These program codes can be read from or written to one or more computer program products.
- These computer program products include program code carriers such as hard disks, compact disks (CDs), memory cards or floppy disks. Such computer program products are typically portable or fixed storage units as described with reference to FIG. 6 .
- the storage unit may have storage segments, storage spaces, etc. arranged similarly to the memory 1020 in the computing processing device of FIG. 5 .
- the program code may, for example, be compressed in a suitable form.
- the storage unit includes computer readable code 1031', ie code readable by a processor such as 1010 for example, which when executed by a computing processing device, causes the computing processing device to perform any of the methods described above. of the various steps.
- any reference signs placed between parentheses shall not be construed as limiting the claim.
- the word “comprising” does not exclude the presence of elements or steps not listed in a claim.
- the word “a” or “an” preceding an element does not exclude the presence of a plurality of such elements.
- the present disclosure may be implemented by means of hardware comprising several different elements and by means of a suitably programmed computer. In a unit claim enumerating several means, several of these means may be embodied by one and the same item of hardware.
- the use of the words first, second, and third, etc. do not denote any order. These words can be interpreted as names.
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Abstract
提供了一种热管理方法,应用于车辆技术领域,方法包括在电动车辆(400)符合预设温度条件的情况下,可以将电动车辆(400)的电机冷却系统中的冷却液导向电池,由于电机冷却系统用于吸收电机工作产生的余热,因此,将冷却液导向电池可以在不采用独立电加热器对电池加热的情况下,保持电池的温度,从而保持电池的活性,避免电量的额外消耗;另外,可以根据电动车辆(400)中不同分区的座椅载荷信息,确定电动车辆(400)内的人员情况,从而控制电动车辆(400)中至少一个分区的电加热器(414;421;422;423;424;425),可以在保证乘坐人员乘坐舒适的情况下,避免对空闲分区加热导致的电量消耗,提升电池续航,改善电动车辆里程衰减。
Description
相关申请的交叉引用
本公开要求在2020年7月7日提交中国专利局、申请号为202010648124.6、名称为“一种热管理装置、装置和电动车辆”的中国专利申请的优先权,其全部内容通过引用结合在本公开中。
本公开涉及车辆技术领域,特别涉及一种热管理装置、装置和电动车辆。
电动车辆是根据车载的电池提供动力,用电机驱动车轮行驶的车辆,由于其节能、环保的特点得到充分的发展。其中,电动车辆可以包括纯电动车辆、混合动力汽车、燃料电池汽车等。
由于在低温环境下,电池活性降低,可用的电量下降,使得电池续航降低;而低温环境下,电池在提供动力的同时,还可能需要通过电加热器供暖,使得电动车辆在低温环境下如冬季、雨季等环境中驾驶时,电量消耗大,导致电池续航差,车辆里程衰减。
目前,通常采用为动力电池设计独立电加热器的装置,在低温环境下对电池进行加热,从而保持电池活性。但是,电加热器属于高耗能部件,在提升电池温度的同时,也消耗了电池的电量,即使保持了电池活性,但还是加速了电池电量的消耗,对电池续航的提升、车辆里程衰减的改善有限。
发明内容
有鉴于此,本公开旨在提出一种热管理装置、装置和电动车辆,以解决电动车辆在低温环境下行驶时,电量消耗大,电池续航差,车辆里程衰减的问题。
为达到上述目的,本公开的技术方案是这样实现的:
一种热管理方法,该方法可以包括:
在电动车辆符合预设温度条件的情况下,将所述电动车辆的电机冷却系 统中的冷却液导向电池,和/或获取所述电动车辆中不同分区的座椅载荷信息;
在获取所述电动车辆中不同分区的座椅载荷信息的情况下,根据所述座椅载荷信息控制所述电动车辆中至少一个分区的电加热器。
进一步的,所述分区包括驾驶员分区以及乘坐人员分区,所述根据所述座椅载荷信息控制所述电动车辆中至少一个分区的电加热器,包括:
根据所述驾驶员分区的座椅载荷信息,控制所述电动车辆中所述驾驶员分区的方向盘电加热器以及座椅电加热器;
根据所述乘坐人员分区的座椅载荷信息,控制所述电动车辆中所述乘坐人员分区的座椅电加热器。
进一步的,在所述获取所述电动车辆中不同分区的座椅载荷信息之后,还包括:
获取所述电动车辆的室内温度;
根据所述室内温度,控制所述电动车辆的空调。
进一步的,所述在电动车辆符合预设温度条件的情况下,将所述电动车辆的电机冷却系统中的冷却液导向电池,和/或获取所述电动车辆中不同分区的座椅载荷信息之后,还包括:
根据所述座椅载荷信息,控制所述电动车辆中至少一个分区的鼓风机腔体。
进一步的,所述预设温度条件为以下至少一种:
所述电池的温度小于第一预设温度;
所述电动车辆的室外温度小于第二预设温度;
所述电机冷却系统的冷却液的温度小于第三预设温度。
相对于现有技术,本公开所述的热管理方法具有以下优势:
本公开实施例中,在电动车辆符合预设温度条件的情况下,可以确定当前的环境对电池活性造成影响,此时,可以将电动车辆的电机冷却系统中的冷却液导向电池,由于电机冷却系统用于吸收电机工作产生的余热,因此,将冷却液导向电池可以在不采用独立电加热器对电池加热的情况下,保持电池的温度,从而保持电池的活性,避免了电量的额外消耗;另外,可以根据电动车辆中不同分区的座椅载荷信息,确定电动车辆内的人员情况,从而控制电动车辆中至少一个分区的电加热器,在此基础上,分区运行电加热器可 以在保证乘坐人员乘坐舒适的情况下,避免了对空闲分区加热导致的电量消耗,提升了电池续航,改善了里程衰减。
本公开的另一目的在于提出一种热管理装置,以解决电动车辆在低温环境下行驶时,电量消耗大,电池续航差,车辆里程衰减的问题。
为达到上述目的,本公开的技术方案是这样实现的:
一种热管理装置,该装置可以包括:
温度条件确定模块,用于在电动车辆符合预设温度条件的情况下,将所述电动车辆的电机冷却系统中的冷却液导向电池,和/或获取所述电动车辆中不同分区的座椅载荷信息;
分区加热控制模块,用于在获取所述电动车辆中不同分区的座椅载荷信息的情况下,根据所述座椅载荷信息控制所述电动车辆中至少一个分区的电加热器。
进一步的,所述分区包括驾驶员分区以及乘坐人员分区,所述分区加热控制模块,包括:
驾驶员分区加热控制子模块,用于根据所述驾驶员分区的座椅载荷信息,控制所述电动车辆中所述驾驶员分区的方向盘电加热器以及座椅电加热器;
乘坐人员分区控制子模块,用于根据所述乘坐人员分区的座椅载荷信息,控制所述电动车辆中所述乘坐人员分区的座椅电加热器。
进一步的,所述装置还包括:
室内温度获取模块,用于获取所述电动车辆的室内温度;
空调循环控制模块,用于根据所述室内温度,控制所述电动车辆的空调。
进一步的,所述空调循环控制模块,还用于根据所述座椅载荷信息,控制所述电动车辆中至少一个分区的鼓风机腔体。
进一步的,所述预设温度条件为以下至少一种:
所述电池的温度小于第一预设温度;
所述电动车辆的室外温度小于第二预设温度;
所述电机冷却系统的冷却液的温度小于第三预设温度。
本公开实施例还提供了一种电动车辆,该电动车辆用于实现上述热管理方法,或该电动车辆包括上述热管理装置。
所述热管理装置与上述热管理方法相对于现有技术所具有的优势相同, 在此不再赘述。
上述说明仅是本公开技术方案的概述,为了能够更清楚了解本公开的技术手段,而可依照说明书的内容予以实施,并且为了让本公开的上述和其它目的、特征和优点能够更明显易懂,以下特举本公开的具体实施方式。
为了更清楚地说明本公开实施例或相关技术中的技术方案,下面将对实施例或相关技术描述中所需要使用的附图作一简单地介绍,显而易见地,下面描述中的附图是本公开的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其他的附图。
构成本公开的一部分的附图用来提供对本公开的进一步理解,本公开的示意性实施例及其说明用于解释本公开,并不构成对本公开的不当限定。在附图中:
图1是本公开实施例提供的一种热管理方法的步骤流程图;
图2是本公开实施例提供的另一种热管理方法的步骤流程图;
图3是本公开实施例提供的一种热管理装置的结构框图;
图4是本公开实施例提供的一种电动车辆硬件结构示意图。
图5示意性地示出了用于执行根据本公开的方法的计算处理设备的框图;并且
图6示意性地示出了用于保持或者携带实现根据本公开的方法的程序代码的存储单元。
为使本公开实施例的目的、技术方案和优点更加清楚,下面将结合本公开实施例中的附图,对本公开实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例是本公开一部分实施例,而不是全部的实施例。基于本公开中的实施例,本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例,都属于本公开保护的范围。
需要说明的是,在不冲突的情况下,本公开中的实施例及实施例中的特征可以相互组合。
图1是本公开实施例提供的一种热管理方法的步骤流程图,如图1所示,该方法可以包括:
步骤101、在电动车辆符合预设温度条件的情况下,将所述电动车辆的电机冷却系统中的冷却液导向电池,和/或获取所述电动车辆中不同分区的座椅载荷信息。
本公开实施例中,电动车辆是指以电池向电机提供动力,并通过电机驱动车轮行驶的车辆,电动车辆除行驶外,还可以基于电池提供空调制热制冷功能、娱乐功能等,也会对电池的电量进行消耗。而基于电动车辆的电池发电原理,在环境温度较低时,电池活性降低,导致电量下降,电池续航降低。因此,预设温度条件可以根据电动车辆的行驶环境、电动车辆的电池性能等参数设置,从而在环境温度影响电池活性时,及时进行热管理,提高电池续航。
本公开实施例中,电机可以将电池提供的电能转化为机械能以驱动车轮行驶,在进行能量转化时,会有部分损耗以热量形式散发,为了避免温度升高使电机损坏,因此,需要对电机进行冷却。电动车辆可以采用液冷的方式,通过电机冷却系统中的冷却液吸收电机散发的热量,从而避免电机过热。因此,在电动车辆符合预设温度条件的情况下,可以将电动车辆的电机冷却系统中的冷却液导向电池,由于冷却液吸收了电机散发的热量,因此,能够对电池进行加热,从而保持电池的温度,进一步保持电池活性,提高电池续航。
另外,在实际应用中,由于在电动车辆符合预设温度条件的情况下,电动车辆的行驶环境可能对驾驶员、乘坐人员等不够友好,此时,需要对电动车辆的驾驶舱进行加热以保证舒适的驾驶、乘坐环境。本公开实施例中,可以对电动车辆进行分区,可选地,每一分区中可以包括至少一个座椅以及至少一个电加热器,不同分区中可以包括不同座椅以及电加热器,本领域技术人员可以根据电动车辆的座椅数量、大小、位置进行划分,如每一个座椅为一个分区、每一排座椅为一个分区等,本公开实施例对此不做具体限制。
本公开实施例中,座椅载荷信息是通过座椅上设置的载荷传感器采集到的反应是否有人员乘坐在座椅上的信息,可选地,座椅载荷信息可以包括压力信息,如座椅的座面上承受的压力大小、座椅的座面上承受压力的面积、座椅的靠背上承受的压力大小等;进一步的,为了避免座椅上放置其他物品 对判断造成的干扰,座椅载荷信息还可以包括温度信息,如与座椅座面接触的物体的温度、与座椅的靠背接触的物体的温度等。
步骤102、在获取所述电动车辆中不同分区的座椅载荷信息的情况下,根据所述座椅载荷信息控制所述电动车辆中至少一个分区的电加热器。
本公开实施例中,根据分区的座椅载荷信息可以确定该分区中是否存在驾驶人员、乘坐人员等人员,从而控制对应分区的电加热器。可选地,可以是在分区中存在人员的情况下,控制电加热器启动进行加热;在分区中不存在人员的情况下,控制电加热器关闭,从而在保证人员适宜的驾驶环境同时,避免了对无人员的空闲分区加热造成的电量浪费,从而优化了电量分配,提升了电池续航。
本公开实施例中,在电动车辆符合预设温度条件的情况下,可以确定当前的环境对电池活性造成影响,此时,可以将电动车辆的电机冷却系统中的冷却液导向电池,由于电机冷却系统用于吸收电机工作产生的余热,因此,将冷却液导向电池可以在不采用独立电加热器对电池加热的情况下,保持电池的温度,从而保持电池的活性,避免了电量的额外消耗;另外,可以根据电动车辆中不同分区的座椅载荷信息,确定电动车辆内的人员情况,从而控制电动车辆中至少一个分区的电加热器,在此基础上,分区运行电加热器可以在保证乘坐人员乘坐舒适的情况下,避免了对空闲分区加热导致的电量消耗,提升了电池续航,改善了里程衰减。
图2是本公开实施例提供的另一种热管理方法的步骤流程图,如图2所示,该方法可以包括:
步骤201、在电动车辆符合预设温度条件的情况下,将所述电动车辆的电机冷却系统中的冷却液导向电池,和/或获取所述电动车辆中不同分区的座椅载荷信息。
本公开实施例中,步骤201可对应参照前述步骤101的相关描述,为避免重复,在此不再赘述。
可选地,所述预设温度条件包括以下至少一种:
所述电池的温度小于第一预设温度;
所述电动车辆的室外温度小于第二预设温度;
所述电机冷却系统的冷却液的温度小于第三预设温度。
本公开实施例中,预设温度条件可以是对电池的温度进行是否小于第一预设温度进行确定,由于电池的温度可以直接反应出当前电池的状态,因此,通过电池的温度进行判断,能够提高判断的效率和准确率,其中,第一预设温度可以是经过测量或根据电池性能预设的,可以引起电池活性降低的温度,如检测到电池的温度在10℃以下时,电池的活性降低,因此,将10℃作为电池的第一预设温度。
本公开实施例中,预设温度条件可以是对电动车辆的室外温度是否小于第二预设温度进行确定,其中,室外温度可以是电动车辆行驶环境中的环境温度。由于室外温度会引起电池温度的变化,在室外温度过低时,也会使电池的温度降低,从而导致电池的活性降低。其中,第二预设温度可以是经过测量的,导致电池的温度降低至第一预设温度的室外温度,也可以是根据车辆的热量散发效率、电池性能的预先设定的第二预设温度,如检测到室外温度在10℃以下时,导致电池的温度降低,引起电池的活性降低,因此,可以将10℃作为室外温度的第二预设温度,第二预设温度还可以是5℃、0℃等。
本公开实施例中,由于对于电动车辆来说,对电机的散热是优先考虑,因此,当电机的温度在正常工作的范围内时,可以考虑通过冷却液利用电机散发的热量对电池进行加热,以保证电池的活性,但是当电机的温度超过正常工作的范围时,则需要先对电机进行冷却。其中,冷却液在冷却过程中与电机进行热量交换,因此,冷却液的温度可以反应电机的温度,如电机正常工作的温度范围为40℃,可以将第三预设温度设置为40℃,当冷却液的温度在40℃以下时,可以通过冷却液对电池进行加热,以保证电池的活性,第三预设温度还可以是30℃、35℃等。
本公开实施例中,可以在预设温度条件符合上述任一时,可以将电动车辆的电机冷却系统中的冷却液导向电池,并获取电动车辆中不同分区的座椅载荷信息。可选地,也可以根据电动车辆符合的不同预设温度条件,选择不同的热管理方案,如在电动车辆符合电机冷却系统的冷却液的温度小于第三预设温度的情况下,将电动车辆的电机冷却系统中的冷却液导向电池;在电池的温度小于第一预设温度,和/或电动车辆的室外温度小于第二预设温度,但电机冷却系统的冷却液的温度大于或等于第三预设温度的情况下,获取电动车辆中不同分区的座椅载荷信息。本领域技术人员可以根据电动车辆的实 际情况,选择热管理方案,本公开实施例对此不做具体限制。
本公开实施例中,在电动车辆符合预设温度条件时,还可以询问电动车辆内的人员是否需要采取降低电量消耗的热管理方案,并根据人员的选择操作确定是否进行热管理。可选地,还可以询问人员选择哪一种或哪几种热管理方案,并根据人员的选择采取对应的热管理方案。另外,在人员选择采取降低电量消耗的热管理方案时,可以确定电动车辆需要在节能的模式下行驶,如对混合动力的电动车辆,可以进一步将驾驶模式切换到或保持在ECO(Economy,经济)模式,从而进一步提高车辆的续航,增加里程长度。
步骤202、在获取所述电动车辆中不同分区的座椅载荷信息的情况下,根据所述座椅载荷信息控制所述电动车辆中至少一个分区的电加热器。
本公开实施例中,步骤202可对应参照前述步骤102的相关描述,为避免重复,在此不再赘述。
可选地,所述步骤202中,根据所述座椅载荷信息控制所述电动车辆中至少一个分区的电加热器,包括:
子步骤S11、根据所述驾驶员分区的座椅载荷信息,控制所述电动车辆中所述驾驶员分区的方向盘电加热器以及座椅电加热器。
可选地,所述子步骤S11包括:
子步骤S111、在根据所述座椅载荷信息确定所述驾驶员分区中存在驾驶员的情况下,控制所述电动车辆中所述驾驶员分区的方向盘电加热器以及座椅电加热器启动;
子步骤S112、在根据所述座椅载荷信息确定所述驾驶员分区中不存在驾驶员的情况下,控制所述电动车辆中所述驾驶员分区的方向盘电加热器以及座椅电加热器关闭。
本公开实施例中,可以根据电动汽车中不同座椅的功能进行分区,在电动车辆的座椅包括供驾驶员乘坐的座椅,以及供其他乘坐人员乘坐的座椅时,可以将电动车辆划分为驾驶员分区,以及乘坐人员分区。其中,在驾驶员分区中可以包括座椅、方向盘、油门踏板、刹车和档杆等。当驾驶员分区的座椅载荷信息表示驾驶员分区存在驾驶员时,可以控制驾驶员分区的座椅电加热器启动加热座椅,可选地,由于驾驶员在驾驶电动车辆的过程中,需要长时间把握方向盘,因此,也可以控制方向盘加热器启动加热方向盘,从而进 一步保证驾驶员处于适宜的温度中。
子步骤S12、根据所述乘坐人员分区的座椅载荷信息,控制所述电动车辆中所述乘坐人员分区的座椅电加热器。
可选地,所述子步骤S12包括:
子步骤S121、在根据所述座椅载荷信息确定所述乘坐人员分区中存在乘坐人员的情况下,控制所述电动车辆中所述乘坐人员分区的座椅电加热器启动;
子步骤S122、在根据所述座椅载荷信息确定所述乘坐人员分区中不存在乘坐人员的情况下,控制所述电动车辆中所述乘坐人员分区的座椅电加热器关闭。
本公开实施例中,在乘坐人员分区可以包括座椅,当乘坐人员分区的座椅载荷信息表示乘坐人员分区中存在乘坐人员时,可以控制该乘坐人员分区的座椅电加热器加热座椅,从而达到分区加热的目的,避免对无人、空闲的分区进行加热导致电量浪费的问题。另外,电加热器可以设置在座椅的任意位置,如可以设置在座椅的头枕、座面、靠背和扶手等中的至少一处,本公开实施例对此不做具体限制。其中,设置在座面的电加热器可以是在座椅的坐垫中。
步骤203、获取所述电动车辆的室内温度。
本公开实施例中,电动车辆的室内温度可以反应驾驶人员、乘坐人员等所处环境的实际温度,因此,在根据座椅载荷信息控制分区的电加热器启动或关闭时,还可以获取电动车辆的室内温度,以确定电动车辆内驾驶环境的实际温度。
步骤204、根据所述室内温度,控制所述电动车辆的空调。
本公开实施例中,室内温度可以反应电动车辆内驾驶环境的实际温度,控制空调可以是根据室内温度控制空调的关闭、制热、制冷、开启外循环和开启内循环等。在实际温度较低或较高时,可以开启空调制热或制冷保持驾驶环境的温度在适宜的范围内,可以根据电动车辆的驾驶需求、室内环境、室外环境以及人员习惯等,确定如何根据室内温度控制电动车辆的空调。
可选地,所述步骤204包括:
子步骤S21、在所述室内温度小于预设低温时,控制所述空调制热;
子步骤S22、在所述室内温度大于预设高温时,控制所述空调关闭。
本公开实施例中,在电动车辆符合预设温度条件时,此时,电动车辆处于影响电池活性的低温环境中,在开启对应分区电加热器和/或通过冷却液余热加热电池的情况下,为了进一步提升升温速度,降低能耗,可以在室内温度较低如室内温度小于预设低温的0℃、1℃、2℃等时,开启空调制热;由于空调耗能较高,在室内温度达到预设高温时,可以关闭空调以降低能耗,如在室内温度大于预设高温的5℃、8℃、10℃等时,可以关闭空调,通过各分区对应的电加热器对人员进行供暖,节省能耗,本领域技术人员可以根据具体需求设置预设低温和预设高温,本公开实施例对此不做具体限制。
可选地,所述步骤204包括:
子步骤S31、在所述室内温度小于预设低温时,控制所述空调开启内循环;
子步骤S32、在所述室内温度大于预设高温时,控制所述空调开启外循环。
在实际应用中,电动车辆的空调还可以进行内循环或外循环,外循环可以利用风机将对电动车辆驾驶舱内外的空气进行交换,以补充新鲜空气,内循环是通过风机在电动车辆驾驶舱内进行气流循环,由于外循环发生了内外空气交换,造成了热量的内外交换,而内循环仅在电动车辆驾驶舱内进行气流循环,则避免了热量的内外交换。
本公开实施例中,还可以根据室内温度,控制电动车辆的内循环和外循环,在电动车辆的室内温度较高时可以采用外循环,以保持电动车辆的室内的空气新鲜,在电动车辆的室内温度较低时可以采用内循环,以避免热量流失。可选地,可以在控制空调制热时,将电动车辆的空气循环切换为或保持在内循环,从而避免热量流失,有利于快速提高电动车辆的室内温度,从而降低空调的能耗,进一步节省电池的电量。
步骤205、根据所述座椅载荷信息,控制所述电动车辆中至少一个分区的鼓风机腔体。
本公开实施例中,电动车辆中还可以分区设置对应的鼓风机腔体,在空调制热的过程中可以通过开启对应的鼓风机腔体,将被加热的空气导向对应的分区,从而使得空气加热具有针对性,提升分区加热的速度,降低加热的能耗。
可选地,所述步骤205包括:
子步骤S41、在根据所述座椅载荷信息确定所述分区中存在人员的情况下,控制所述分区对应的鼓风机腔体开启;
子步骤S42、在根据所述座椅载荷信息确定所述分区中不存在人员的情况下,控制所述分区对应的鼓风机腔体关闭。
本公开实施例中,在需要开启空调时,可以根据座椅载荷信息,控制电动车辆中分区对应的鼓风机腔体,在座椅载荷信息表示该分区中存在人员时,可以开启该分区对应的鼓风机腔体,使得被加热的空气流动方向更具针对性,避免被加热的空气逸散导致电动车辆的室内温度提升慢的问题,降低空调的能耗,进一步节省电池的电量;在座椅载荷信息表示该分区中不存在人员时,可以关闭该分区的鼓风机腔体,避免能耗浪费。其中,分区可以包括驾驶员分区、乘坐人员分区等;人员可以包括驾驶员、乘坐人员等。另外,本公开实施例也可以应用于电动车辆运载宠物、货物等其他对环境温度有要求的场景下。
本公开实施例中,可以是当电动车辆不符合预设温度条件时,结束上述热管理过程,可选地,不符合预设温度条件可以是电池的温度大于或等于第一预设温度、电动车辆的室外温度大于或等于第二预设温度和电机冷却系统的冷却液的温度大于或等于第三预设温度中的至少一种;可选地,还可以在根据驾驶员的选择将电动车辆的驾驶模式切换为Normal(常规)、Sport(运动)模式时,结束上述热管理,本公开实施例对此不作具体限制。其中,Sport模式为电动车辆的运动模式,强调电动车辆的动力性,弱化车辆经济性的驾驶模式;Normal模式为平衡车辆的动力性和经济性的一种平衡的驾驶模式;Eco模式为强调车辆的经济性,适当弱化车辆的运动性的驾驶模式。
本公开实施例中,在电动车辆符合预设温度条件的情况下,可以确定当前的环境对电池活性造成影响,此时,可以将电动车辆的电机冷却系统中的冷却液导向电池,由于电机冷却系统用于吸收电机工作产生的余热,因此,将冷却液导向电池可以在不采用独立电加热器对电池加热的情况下,保持电池的温度,从而保持电池的活性,避免了电量的额外消耗;另外,可以根据电动车辆中不同分区的座椅载荷信息,确定电动车辆内的人员情况,从而控制电动车辆中至少一个分区的电加热器,在此基础上,分区运行电加热器可以在保证乘坐人员乘坐舒适的情况下,避免了对空闲分区加热导致的电量消 耗,提升了电池续航,改善了里程衰减。
图3是本公开实施例提供的一种热管理装置300的结构框图,该装置可以包括:
温度条件确定模块301,用于在电动车辆符合预设温度条件的情况下,将所述电动车辆的电机冷却系统中的冷却液导向电池,和/或获取所述电动车辆中不同分区的座椅载荷信息;
分区加热控制模块302,用于在获取所述电动车辆中不同分区的座椅载荷信息的情况下,根据所述座椅载荷信息控制所述电动车辆中至少一个分区的电加热器。
可选地,所述分区包括驾驶员分区以及乘坐人员分区,所述分区加热控制模块302,包括:
驾驶员分区加热控制子模块,用于根据所述驾驶员分区的座椅载荷信息,控制所述电动车辆中所述驾驶员分区的方向盘电加热器以及座椅电加热器。
可选地,所述驾驶员分区控制子模块,包括:
驾驶员分区启动单元,用于在根据所述座椅载荷信息确定所述驾驶员分区中存在驾驶员的情况下,控制所述电动车辆中所述驾驶员分区的方向盘电加热器以及座椅电加热器启动;
驾驶员分区关闭单元,用于在根据所述座椅载荷信息确定所述驾驶员分区中不存在驾驶员的情况下,控制所述电动车辆中所述驾驶员分区的方向盘电加热器以及座椅电加热器关闭。
乘坐人员分区控制子模块,用于根据所述乘坐人员分区的座椅载荷信息,控制所述电动车辆中所述乘坐人员分区的座椅电加热器。
可选地,所述乘坐人员分区控制子模块,包括:
乘坐人员分区启动单元,用于在根据所述座椅载荷信息确定所述乘坐人员分区中存在乘坐人员的情况下,控制所述电动车辆中所述乘坐人员分区的座椅电加热器启动;
乘坐人员分区关闭单元,用于在根据所述座椅载荷信息确定所述乘坐人员分区中不存在乘坐人员的情况下,控制所述电动车辆中所述乘坐人员分区的座椅电加热器关闭。
可选地,所述装置还包括:
室内温度获取模块,用于获取所述电动车辆的室内温度;
空调循环控制模块,用于根据所述室内温度,控制所述电动车辆的空调。
可选地,所述空调循环控制模块,包括:
空调启动子模块,用于在所述室内温度小于预设低温时,控制所述空调制热;
空调关闭子模块,用于在所述室内温度大于预设高温时,控制所述空调关闭。
可选地,所述空调循环控制模块,包括:
空调内循环子模块,用于在所述室内温度小于预设低温时,控制所述空调开启内循环;
空调外循环子模块,用于在所述室内温度大于预设高温时,控制所述空调开启外循环。
可选地,所述空调循环控制模块,还用于根据所述座椅载荷信息,控制所述电动车辆中至少一个分区的鼓风机腔体。
鼓风机腔体开启子模块,用于在根据所述座椅载荷信息确定所述分区中存在人员的情况下,控制所述分区对应的鼓风机腔体开启;
鼓风机腔体关闭子模块,用于在根据所述座椅载荷信息确定所述分区中不存在人员的情况下,控制所述分区对应的鼓风机腔体关闭。
可选地,所述预设温度条件为以下至少一种:
所述电池的温度小于第一预设温度;
所述电动车辆的室外温度小于第二预设温度;
所述电机冷却系统的冷却液的温度小于第三预设温度。
本公开实施例中,在电动车辆符合预设温度条件的情况下,可以确定当前的环境对电池活性造成影响,此时,可以将电动车辆的电机冷却系统中的冷却液导向电池,由于电机冷却系统用于吸收电机工作产生的余热,因此,将冷却液导向电池可以在不采用独立电加热器对电池加热的情况下,保持电池的温度,从而保持电池的活性,避免了电量的额外消耗;另外,可以根据电动车辆中不同分区的座椅载荷信息,确定电动车辆内的人员情况,从而控制电动车辆中至少一个分区的电加热器,在此基础上,分区运行电加热器可以在保证乘坐人员乘坐舒适的情况下,避免了对空闲分区加热导致的电量消 耗,提升了电池续航,改善了里程衰减。
本公开实施例还提供了一种电动车辆,该电动车辆用于实现图1至图2任一项所述的热管理方法,或该电动车辆包括图3所述的热管理装置。
图4是本公开实施例提供的一种电动车辆400硬件结构示意图,如图4所示,当图1至图2所述的热管理方法应用在冬季环境中时,可以将电动车辆实现热管理方法的状态作为“冬季长续航里程模式”,可选地,如图4所示,该电动车辆的应将包括:散热器401、冷却风扇402、电机出口水温传感器403、三通阀404、电机水泵405、电池水泵406、BMS(Battery Management System,电池管理系统)407、AC(Air Conditi-oner,空调控制器)408、车内温度传感器409、车外温度传感器410、鼓风机腔体分区电机M1411、鼓风机腔体分区电机M2412、鼓风机腔体分区电机M3413、PTC(Positive Temperature Coefficient,正温度系数)电加热器414、PTC电加热器控制器415、BCM(Body Control Module,车身控制器)416、座椅载荷传感器(主驾驶座分区)417、座椅载荷传感器(副驾驶座分区)418、座椅载荷传感器(左后座椅分区)419、座椅载荷传感器(右后座椅分区)420、方向盘电加热器421、驾驶员座椅电加热器422、副驾驶座椅电加热器423、左后座椅电加热器424、右后座椅电加热器425、VCU(Vehicle Control Unit,整车控制器)426和HUT(Head Unit,车机系统)427。可选地,所述电动车辆包括的硬件其可实现的功能对应参照如下表1:
表1电动车辆硬件结构的功能
上述各硬件可通过如图4所示的冷却管路、采集线、控制线和CAN总线连接,其中,冷却管路用于传输冷却液,采集线用于采集传感器获取的信息,控制线用于传输控制信号,CAN(Controller Area Network,控制器局域网络)总线是汽车计算机控制系统和嵌入式工业控制局域网的标准总线用于构建电动车辆的控制网络。如图4所示的电动车辆,可通过如下方式实现图1至图2任一项所述的热管理方法:
步骤S51、VCU426接收电机出水口温度传感器403采集的电机冷却液的温度信号,BMS407采集的电池的温度信号,以及AC408中车外温度传感器410采集的室外温度的信号(AC_outdoortemp=0x1-0xFF)。在符合预设温度条件时,VCU426向HUT427发送“冬季长续航里程模式”的开启请求信号(vcu_hut_winterlongrangeRequest=0x1 on);
其中,预设温度条件包括以下至少一种:
电池的温度Tmin_batt<10℃;
电动车辆的室外温度Toutdoor<10℃;
电机冷却系统的冷却液的温度Tmotor<40℃。
步骤S52、当HUT427收到VCU426发送的“冬季长续航里程模式”开启请求信号后,显示对应的选择界面,以及输出对应的提示音,询问驾驶员是否开启“冬季长续航里程模式”;
步骤S53、驾驶员选择确认开启“冬季长续航里程模式”后,HUT427将电动车辆的驾驶模式切换为或保持在Eco模式,以便降低整车的能耗,并将“冬季长续航里程模式”请求的应答信号(HUT_winter_longrangeRq=0x1 request;0x2 no request)发给VCU426。
步骤S54、BCM416可以实时通过座椅载荷传感器(主驾驶座分区)417、座椅载荷传感器(副驾驶座分区)418、座椅载荷传感器(左后座椅分区)419、座椅载荷传感器(右后座椅分区)420采集驾驶员座椅是否载荷的信号(driverside_load=0x1 occupied;0x2 unoccupied)、副驾驶座椅是否载荷的信号(vicedriverside_load=0x1 occupied;0x2 unoccupied)、左后座椅是否载荷的信号(rearleft_load0x1 occupied;0x2 unoccupied)、右后座椅是否载荷的信号(rearright_load0x1 occupied;0x2 unoccupied)等,并将此是否有载荷的信号发给VCU426;
步骤S55、VCU426接收来自HUT427的允许开启“冬季长续航模式”的应答信号(HUT_winter_longrangeRq=0x1 request;0x2 no request)后,接收来自BCM416的驾驶员座椅是否载荷的信号(driverside_load=0x1 occupied;0x2 unoccupied)、副驾驶座椅是否载荷的信号(vicedriverside_load=0x1 occupied;0x2 unoccupied)、左后座椅是否载荷的信号(rearleft_load0x1 occupied;0x2 unoccupied)、右后座椅是否载荷的信号(rearright_load0x1 occupied;0x2 unoccupied);
步骤S56、VCU426基于各分区座椅上是否有载荷,向BCM416发送方向盘电加热器421的加热请求信号(VCU_steeringwheel_heatRq=0x1 no reuqest;0x2 request)、驾驶员座椅电加热器422的加热请求信号(VCU_driversideseat__heatRq=0x1 no reuqest;0x2 request)、副驾驶座椅电加 热器423的加热请求信号(VCU_vicedriversideseat_heatRq=0x1 no reuqest;0x2 request)、左后座椅电加热器424的加热请求信号(VCU_rearleftseat_heatRq=0x1 no reuqest;0x2 request)、右后座椅电加热器425的加热请求信号(VCU_rearrightseat_heatRq=0x1 no reuqest;0x2 request)。
步骤S57、BCM416接收VCU426根据是否有载荷发送的方向盘电加热器421的加热请求信号(VCU_steeringwheel_heatRq=0x1 no reuqest;0x2 request)、驾驶员座椅电加热器422的加热请求信号(VCU_driversideseat__heatRq=0x1 no reuqest;0x2 request)、副驾驶座椅电加热器423的加热请求信号(VCU_vicedriversideseat_heatRq=0x1 no reuqest;0x2 request)、左后座椅电加热器424的加热请求信号(VCU_rearleftseat_heatRq=0x1 no reuqest;0x2 request)、右后座椅电加热器425的加热请求信号(VCU_rearrightseat_heatRq=0x1 no reuqest;0x2 request),并执行进行加热。其中,各电加热器等可以通过12V电压的进行工作,以降低能耗,可以通过DC/DC(Directcurrent/Direct current,直流电源/直流电源)输出电源改变输出电压。
步骤S58、AC408将车内温度传感器409采集的室内温度的信号(AC_indoortemp=0x1-0xFF)发给VCU426。
步骤S59、VCU426接收来自AC408的室内温度传感器的温度(AC_outdoortemp=0x1-0xFF)、室外温度传感器的温度(AC_indoortemp=0x1-0xFF)。
步骤S510、VCU426在室内温度<0℃的情况下,向AC408发送PTC电加热器414的开启请求信号(VCU_PTC_openRq=0x1 request);若室内温度>5℃后,则VCU426向AC408发送PTC电加热器414的停止开启请求信号(VCU_PTC_openRq=0x2 no request);
步骤S511、AC408接收来自VCU426的PTC电加热器414的开启请求信号(VCU_PTC_openRq=0x1 request),并向PTC电加热器控制器415发送PTC电加热器启动请求信号(AC_PTC_openRq=0x1 no request 0x2 request);
步骤S512、AC408在接收来自VCU426的PTC电加热器414的开启请求信号(VCU_PTC_openRq=0x1 request)后,可以将空气循环切换为内循环或保 持当前的内循环,从而快速提高驾驶舱内的温度,降低能耗。其中,PTC电加热器414可以通过250V到400V之间的电压进行工作,功率较大,能耗较高。
步骤S513、PTC电加热器控制器415接收来自AC408的PTC电加热器启动请求信号(AC_PTC_openRq=0x1 no request 0x2 request),并控制PTC电加热器414启动。
步骤S514、当开启PTC电加热器414时,VCU426基于各分区座椅上是否有载荷,向AC408发送鼓风机不同腔体的开启请求信号。
步骤S515、AC408接收VCU426根据是否有载荷发送的驾驶员分区的鼓风机腔体分区电机M1411的开启请求信号(VCU_driversidezone=0x1 no reuqest;0x2 request)、副驾驶分区的鼓风机腔体分区电机M2412的开启请求信号(VCU_vicedriversidezone=0x1 no reuqest;0x2 request)、左右后分区的鼓风机腔体分区电机M3413的开启请求信号(VCU_rearzone=0x1 no reuqest;0x2 request;),并执行。
步骤S516、VCU426控制电机冷却系统中三通阀由1-3导通切换为2-3导通,还可以控制电机水泵405和冷却风扇402,所述电机冷却系统中通过电机水泵405驱动冷却液吸收电机的余热,通过散热器401对冷却液进行冷却,通过冷却风扇402加速冷却散热器。
步骤S517、VCU426控制电池冷却系统中的电池水泵406进行工作。
步骤S518、在“冬季长续航模式”中,若满足以下至少一种条件,VCU426发送“冬季长续航里程模式”关闭请求信号(vcu_hut_winterlongrangeRequest=0x2 off)给HUT427,退出该模式:
电池的温度Tmin_batt>10℃;
电动车辆的室外温度Toutdoor>10℃;
电机冷却系统的冷却液的温度Tmoto>40℃。
驾驶员在HUT427上选择了Normal或者sport模式。
本公开实施例中,电动车辆在符合预设温度条件的情况下,可以确定当前的环境对电池活性造成影响,此时,可以将电动车辆的电机冷却系统中的冷却液导向电池,由于电机冷却系统用于吸收电机工作产生的余热,因此,将冷却液导向电池可以在不采用独立电加热器对电池加热的情况下,保持电池的温度,从而保持电池的活性,避免了电量的额外消耗;另外,可以根据 电动车辆中不同分区的座椅载荷信息,确定电动车辆内的人员情况,从而控制电动车辆中至少一个分区的电加热器,在此基础上,分区运行电加热器可以在保证乘坐人员乘坐舒适的情况下,避免了对空闲分区加热导致的电量消耗,提升了电池续航,改善了里程衰减。
以上所述仅为本公开的较佳实施例而已,并不用以限制本公开,凡在本公开的精神和原则之内,所作的任何修改、等同替换、改进等,均应包含在本公开的保护范围之内。
以上所描述的装置实施例仅仅是示意性的,其中所述作为分离部件说明的单元可以是或者也可以不是物理上分开的,作为单元显示的部件可以是或者也可以不是物理单元,即可以位于一个地方,或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部模块来实现本实施例方案的目的。本领域普通技术人员在不付出创造性的劳动的情况下,即可以理解并实施。
本公开的各个部件实施例可以以硬件实现,或者以在一个或者多个处理器上运行的软件模块实现,或者以它们的组合实现。本领域的技术人员应当理解,可以在实践中使用微处理器或者数字信号处理器(DSP)来实现根据本公开实施例的计算处理设备中的一些或者全部部件的一些或者全部功能。本公开还可以实现为用于执行这里所描述的方法的一部分或者全部的设备或者装置程序(例如,计算机程序和计算机程序产品)。这样的实现本公开的程序可以存储在计算机可读介质上,或者可以具有一个或者多个信号的形式。这样的信号可以从因特网网站上下载得到,或者在载体信号上提供,或者以任何其他形式提供。
例如,图5示出了可以实现根据本公开的方法的计算处理设备。该计算处理设备传统上包括处理器1010和以存储器1020形式的计算机程序产品或者计算机可读介质。存储器1020可以是诸如闪存、EEPROM(电可擦除可编程只读存储器)、EPROM、硬盘或者ROM之类的电子存储器。存储器1020具有用于执行上述方法中的任何方法步骤的程序代码1031的存储空间1030。例如,用于程序代码的存储空间1030可以包括分别用于实现上面的方法中的各种步骤的各个程序代码1031。这些程序代码可以从一个或者多个计算机程序产品中读出或者写入到这一个或者多个计算机程序产品中。这些计算机程 序产品包括诸如硬盘,紧致盘(CD)、存储卡或者软盘之类的程序代码载体。这样的计算机程序产品通常为如参考图6所述的便携式或者固定存储单元。该存储单元可以具有与图5的计算处理设备中的存储器1020类似布置的存储段、存储空间等。程序代码可以例如以适当形式进行压缩。通常,存储单元包括计算机可读代码1031’,即可以由例如诸如1010之类的处理器读取的代码,这些代码当由计算处理设备运行时,导致该计算处理设备执行上面所描述的方法中的各个步骤。
本文中所称的“一个实施例”、“实施例”或者“一个或者多个实施例”意味着,结合实施例描述的特定特征、结构或者特性包括在本公开的至少一个实施例中。此外,请注意,这里“在一个实施例中”的词语例子不一定全指同一个实施例。
在此处所提供的说明书中,说明了大量具体细节。然而,能够理解,本公开的实施例可以在没有这些具体细节的情况下被实践。在一些实例中,并未详细示出公知的方法、结构和技术,以便不模糊对本说明书的理解。
在权利要求中,不应将位于括号之间的任何参考符号构造成对权利要求的限制。单词“包含”不排除存在未列在权利要求中的元件或步骤。位于元件之前的单词“一”或“一个”不排除存在多个这样的元件。本公开可以借助于包括有若干不同元件的硬件以及借助于适当编程的计算机来实现。在列举了若干装置的单元权利要求中,这些装置中的若干个可以是通过同一个硬件项来具体体现。单词第一、第二、以及第三等的使用不表示任何顺序。可将这些单词解释为名称。
最后应说明的是:以上实施例仅用以说明本公开的技术方案,而非对其限制;尽管参照前述实施例对本公开进行了详细的说明,本领域的普通技术人员应当理解:其依然可以对前述各实施例所记载的技术方案进行修改,或者对其中部分技术特征进行等同替换;而这些修改或者替换,并不使相应技术方案的本质脱离本公开各实施例技术方案的精神和范围。
Claims (13)
- 一种热管理方法,其特征在于,所述方法包括:在电动车辆符合预设温度条件的情况下,将所述电动车辆的电机冷却系统中的冷却液导向电池,和/或获取所述电动车辆中不同分区的座椅载荷信息;在获取所述电动车辆中不同分区的座椅载荷信息的情况下,根据所述座椅载荷信息控制所述电动车辆中至少一个分区的电加热器。
- 根据权利要求1所述的方法,其特征在于,所述电动车辆包括驾驶员分区以及乘坐人员分区,所述根据所述座椅载荷信息控制所述电动车辆中至少一个分区的电加热器,包括:根据所述驾驶员分区的座椅载荷信息,控制所述电动车辆中所述驾驶员分区的方向盘电加热器以及座椅电加热器;根据所述乘坐人员分区的座椅载荷信息,控制所述电动车辆中所述乘坐人员分区的座椅电加热器。
- 根据权利要求1所述的方法,其特征在于,所述在电动车辆符合预设温度条件的情况下,将所述电动车辆的电机冷却系统中的冷却液导向电池,和/或获取所述电动车辆中不同分区的座椅载荷信息之后,还包括:获取所述电动车辆的室内温度;根据所述室内温度,控制所述电动车辆的空调。
- 根据权利要求3所述的方法,其特征在于,在所述根据所述室内温度,控制所述电动车辆的空调之后,还包括:根据所述座椅载荷信息,控制所述电动车辆中至少一个分区的鼓风机腔体。
- 根据权利要求1所述的方法,其特征在于,所述预设温度条件为以下至少一种:所述电池的温度小于第一预设温度;所述电动车辆的室外温度小于第二预设温度;所述电机冷却系统的冷却液的温度小于第三预设温度。
- 一种热管理装置,其特征在于,所述装置包括:温度条件确定模块,用于在电动车辆符合预设温度条件的情况下,将所 述电动车辆的电机冷却系统中的冷却液导向电池,和/或获取所述电动车辆中不同分区的座椅载荷信息;分区加热控制模块,用于在获取所述电动车辆中不同分区的座椅载荷信息的情况下,根据所述座椅载荷信息控制所述电动车辆中至少一个分区的电加热器。
- 根据权利要求6所述的装置,其特征在于,所述分区包括驾驶员分区以及乘坐人员分区,所述分区加热控制模块,包括:驾驶员分区加热控制子模块,用于根据所述驾驶员分区的座椅载荷信息,控制所述电动车辆中所述驾驶员分区的方向盘电加热器以及座椅电加热器;乘坐人员分区控制子模块,用于根据所述乘坐人员分区的座椅载荷信息,控制所述电动车辆中所述乘坐人员分区的座椅电加热器。
- 根据权利要求6所述的装置,其特征在于,所述装置还包括:室内温度获取模块,用于获取所述电动车辆的室内温度;室内温度控制模块,用于根据所述室内温度,控制所述电动车辆的空调。
- 根据权利要求8所述的装置,其特征在于,所述空调循环控制模块,还用于根据所述座椅载荷信息,控制所述电动车辆中至少一个分区的鼓风机腔体。
- 一种电动车辆,其特征在于,所述电动车辆用于实现权利要求1至5任一项所述的热管理方法,或所述电动车辆包括权利要求6-9任一项所述的热管理装置。
- 一种计算处理设备,其特征在于,包括:存储器,其中存储有计算机可读代码;以及一个或多个处理器,当所述计算机可读代码被所述一个或多个处理器执行时,所述计算处理设备执行如权利要求1-5中任一项所述的热管理方法。
- 一种计算机程序,包括计算机可读代码,当所述计算机可读代码在计算处理设备上运行时,导致所述计算处理设备执行根据权利要求1-5中任一项所述的热管理方法。
- 一种计算机可读介质,其中存储了如权利要求12所述的计算机程序。
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