WO2025246972A1 - 电池温度控制方法、装置、计算机可读存储介质及车辆 - Google Patents

电池温度控制方法、装置、计算机可读存储介质及车辆

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Publication number
WO2025246972A1
WO2025246972A1 PCT/CN2025/095355 CN2025095355W WO2025246972A1 WO 2025246972 A1 WO2025246972 A1 WO 2025246972A1 CN 2025095355 W CN2025095355 W CN 2025095355W WO 2025246972 A1 WO2025246972 A1 WO 2025246972A1
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WO
WIPO (PCT)
Prior art keywords
vehicle
battery
threshold
less
battery temperature
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
PCT/CN2025/095355
Other languages
English (en)
French (fr)
Inventor
凌和平
黄伟
马锐
孙兆
李伟健
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BYD Co Ltd
Original Assignee
BYD Co Ltd
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Filing date
Publication date
Application filed by BYD Co Ltd filed Critical BYD Co Ltd
Publication of WO2025246972A1 publication Critical patent/WO2025246972A1/zh
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • 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
    • B60L58/26—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 cooling
    • 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

Definitions

  • This disclosure relates to the field of vehicle control technology, and in particular to a battery temperature control method, apparatus, computer-readable storage medium, and vehicle.
  • Electric vehicles are now very common, and each vehicle includes its battery.
  • the battery temperature In low ambient temperatures, the battery temperature is typically low.
  • the battery heater When a low battery temperature is detected, the battery heater is activated, heating until a preset temperature is reached and then stopping.
  • high ambient temperatures when the battery's discharge power is high, the battery temperature will be high.
  • cooling is activated. Heating or cooling the battery usually requires a certain amount of energy.
  • the heat source for battery heating is typically a heater or active heat generation by the motor, which takes a relatively long time, and the water temperature rises slowly from below -20°C to the target temperature.
  • This disclosure provides a battery temperature control method, apparatus, computer-readable storage medium, and vehicle, which can reduce unnecessary energy waste and increase driving range.
  • some embodiments of this disclosure provide a battery temperature control method, including: acquiring the battery temperature of a vehicle; and determining whether to heat or cool the battery based on the battery temperature and associated characteristic information of the vehicle.
  • the first approach does not rely solely on battery temperature to determine whether to heat or cool the battery. Instead, it uses a combination of battery temperature and vehicle-related characteristics to determine whether heating is necessary. This reduces unnecessary energy waste and increases driving range.
  • the associated characteristic information of the vehicle includes at least one of the following: vehicle navigation information, vehicle speed, vehicle discharge power, battery charging power, ambient temperature of the vehicle, and battery state of charge (SOC).
  • determining whether to heat or cool the battery based on battery temperature and associated vehicle characteristics includes:
  • the battery temperature is less than the first threshold and the vehicle's associated feature information meets the first condition, it is determined that the battery will be heated.
  • determining whether to heat or cool the battery based on battery temperature and associated vehicle characteristics includes:
  • determining whether to heat or cool the battery based on battery temperature and associated vehicle characteristics further includes:
  • the battery temperature is greater than the second threshold and the vehicle's associated feature information meets the third condition, it is determined that the battery will not be cooled.
  • the method before determining whether to heat the battery based on the vehicle's associated characteristic information, the method further includes:
  • the battery's state of charge (SOC) is determined to be less than the third threshold.
  • the associated feature information includes the vehicle's speed
  • the second condition includes: the vehicle speed is less than the fourth threshold.
  • the associated feature information includes the vehicle's navigation information
  • the second condition includes: each of at least one of the vehicle's driving parameters satisfies the corresponding driving parameter condition, and the driving parameters are determined by navigation information.
  • At least one driving parameter includes at least one of the following: the predicted driving time of the vehicle from the starting point to the destination, the predicted driving speed of the vehicle, the predicted driving distance of the vehicle from the starting point to the destination, and the predicted SOC of the vehicle when it reaches the destination.
  • the driving parameter condition corresponding to the predicted driving time is: the predicted driving time is less than the fifth threshold.
  • the driving parameter condition corresponding to the predicted driving speed is: the predicted driving speed is less than the sixth threshold.
  • the driving parameter condition corresponding to the predicted driving distance is: the predicted driving distance is less than the seventh threshold.
  • the driving parameter condition for predicting SOC is: the predicted SOC is greater than the eighth threshold.
  • the associated feature information includes at least one of the following: vehicle speed or vehicle discharge power;
  • the second condition includes at least one of the following: the vehicle speed is 0, or the vehicle's discharge power is less than the ninth threshold.
  • the associated feature information of the vehicle includes the vehicle's navigation information
  • the first condition includes: navigation information indicating that the vehicle will enter a highway section.
  • the associated characteristic information of the vehicle includes the ambient temperature of the vehicle and the vehicle speed.
  • the third condition includes: the ambient temperature of the vehicle is less than the tenth threshold, and the vehicle speed is less than the eleventh threshold.
  • the associated feature information includes at least one of the battery's charging power or the ambient temperature of the vehicle.
  • the third condition includes at least one of the following: when the battery is charging, the charging power is less than the twelfth threshold, or the ambient temperature of the vehicle is less than the thirteenth threshold.
  • the associated feature information includes the battery's SOC, the ambient temperature of the vehicle, and the vehicle's speed.
  • the third condition includes: when the battery is fully charged, the battery's SOC is greater than the fourteenth threshold, the ambient temperature of the vehicle is less than the fifteenth threshold, and the vehicle's speed is 0.
  • some embodiments of this disclosure provide a battery temperature control device, including:
  • the determination unit is used to determine whether to heat or cool the battery based on the battery temperature and related vehicle characteristics.
  • the associated characteristic information of the vehicle includes at least one of the following: vehicle navigation information, vehicle speed, vehicle discharge power, battery charging power, ambient temperature of the vehicle, and battery SOC.
  • the determining unit is configured to:
  • the battery temperature is below the first threshold and the vehicle's associated feature information meets the first condition, it is determined whether to heat the battery based on the vehicle's associated feature information.
  • the determining unit is configured to:
  • the battery temperature is greater than a second threshold and the associated feature information of the vehicle meets a third condition, it is determined that the battery will not be cooled.
  • the determining unit is further configured to determine that the SOC of the battery is less than a third threshold.
  • the associated characteristic information of the vehicle includes the vehicle speed.
  • the second condition includes: the vehicle speed is less than the fourth threshold.
  • the associated feature information includes the vehicle's navigation information
  • the second condition includes: at least one of the vehicle's driving parameters meets the corresponding driving parameter conditions, and the driving parameters are determined by navigation information.
  • At least one driving parameter includes at least one of the following: the predicted driving time of the vehicle from the starting point to the destination, the predicted driving speed of the vehicle, the predicted driving distance of the vehicle from the starting point to the destination, and the predicted SOC of the vehicle when it reaches the destination.
  • the driving parameter condition corresponding to the predicted driving time is: the predicted driving time is less than the fifth threshold.
  • the driving parameter condition corresponding to the predicted driving speed is: the predicted driving speed is less than the sixth threshold.
  • the driving parameter condition corresponding to the predicted driving distance is: the predicted driving distance is less than the seventh threshold.
  • the driving parameter condition for predicting SOC is: the predicted SOC is greater than the eighth threshold.
  • the associated feature information includes at least one of the vehicle speed or the vehicle's discharge power
  • the second condition includes at least one of the following: the vehicle speed is 0, or the vehicle's discharge power is less than the ninth threshold.
  • the associated feature information of the vehicle includes the vehicle's navigation information
  • the first condition includes: navigation information indicating that the vehicle will enter a highway section.
  • the associated characteristic information of the vehicle includes the ambient temperature of the vehicle and the vehicle speed.
  • the third condition includes: the ambient temperature of the vehicle is less than the tenth threshold, and the vehicle speed is less than the eleventh threshold.
  • the associated feature information includes the battery’s charging power and/or the ambient temperature of the vehicle.
  • the third condition includes at least one of the following: when the battery is charging, the charging power is less than the twelfth threshold, or the ambient temperature of the vehicle is less than the thirteenth threshold.
  • the associated feature information includes the battery's SOC, the ambient temperature of the vehicle, and the vehicle's speed.
  • the third condition includes: when the battery is fully charged, the battery's SOC is greater than the fourteenth threshold, the ambient temperature of the vehicle is less than the fifteenth threshold, and the vehicle's speed is 0.
  • some embodiments of this disclosure provide a computer-readable storage medium for storing a computer program that, when run on a computer, causes the computer to execute the battery temperature control method provided by any possible implementation of the first aspect, thereby achieving the beneficial effects of the battery temperature control method provided in the first aspect.
  • some embodiments of this disclosure provide a battery temperature control device, which may include a processor and a memory interconnected.
  • the memory stores a computer program
  • the processor is configured to execute the computer program to implement the battery temperature control method provided in the first aspect, thereby achieving the beneficial effects of the battery temperature control method provided in the first aspect.
  • some embodiments of this disclosure provide a vehicle that may include the battery temperature control device provided in the second or fourth aspects described above.
  • some embodiments of this disclosure provide a chip system including one or more processors that invoke computer instructions to cause the computing device to perform the methods shown in the first aspect or any possible implementation thereof.
  • this disclosure provides a computer program product containing instructions that, when run on a computing device, cause the computing device to perform the method described in the first aspect and any possible implementation thereof.
  • the system will further determine whether the battery needs to be heated based on at least one of the vehicle's navigation information, vehicle speed, and vehicle discharge power. For example, heating is not required at low vehicle speed or low discharge power, thereby reducing unnecessary energy waste and increasing driving range.
  • Figure 1 is a flowchart of a battery temperature control method according to some embodiments
  • FIG. 2 is a flowchart of another battery temperature control method according to some embodiments.
  • Figure 3 is a block diagram of a battery temperature control device according to some embodiments.
  • FIG. 4 is a block diagram of another battery temperature control device according to some embodiments.
  • Figure 5 is a structural diagram of a vehicle according to some embodiments.
  • Vehicles include batteries.
  • heating is initiated when the battery temperature is below a first threshold
  • cooling is initiated when the battery temperature is above a second threshold. This results in energy waste and reduces the vehicle's driving range. Therefore, how to save energy and increase driving range is an urgent problem to be solved.
  • FIG. 1 is a schematic flowchart of a battery temperature control method according to some embodiments. As shown in Figure 1, the battery temperature control method includes the following steps:
  • the vehicle's battery temperature may rise during charging; or, the vehicle's battery temperature may vary with changes in ambient temperature; for example, the battery temperature may be relatively low when the ambient temperature is low (e.g., less than or equal to -5 degrees Celsius); or, the vehicle's battery temperature may vary with the vehicle's discharge power; for example, the battery temperature may rise when the vehicle's discharge power is high (e.g., high-power discharge, exceeding a predetermined threshold).
  • the vehicle's battery temperature may rise during charging; or, the vehicle's battery temperature may vary with changes in ambient temperature; for example, the battery temperature may be relatively low when the ambient temperature is low (e.g., less than or equal to -5 degrees Celsius); or, the vehicle's battery temperature may vary with the vehicle's discharge power; for example, the battery temperature may rise when the vehicle's discharge power is high (e.g., high-power discharge, exceeding a predetermined threshold).
  • the vehicle's associated characteristic information may include, but is not limited to, at least one of the following: vehicle navigation information, vehicle speed, vehicle discharge power, vehicle battery charging power, ambient temperature, and vehicle battery state of charge (SOC), etc. Whether to heat or cool the battery can be determined jointly based on the battery temperature and the vehicle's associated characteristic information, thereby avoiding heating the battery when the temperature is low or cooling it when the temperature is high.
  • the battery temperature when the battery temperature is below a first threshold, it is further determined whether to heat the battery based on the vehicle's associated feature information.
  • This associated feature information may include at least one of the following: vehicle navigation information, vehicle speed, vehicle discharge power, etc.
  • the method for determining whether to heat the battery is as described in Figure 2.
  • the battery temperature is less than a first threshold and the battery's SOC is less than a third threshold, it is determined whether to heat the battery based on the vehicle's associated feature information.
  • FIG. 2 is a flowchart illustrating another battery temperature control method according to some embodiments. As shown in Figure 2, the battery temperature control method includes the following steps:
  • Step 201 is similar to step 101, and will not be repeated here.
  • the battery temperature is less than the first threshold and the vehicle's associated feature information meets the first condition, it is determined that the battery should be heated.
  • the associated feature information includes at least one of the following: vehicle navigation information, vehicle speed, or vehicle discharge power. If the battery temperature is less than a first threshold and the battery's SOC is less than a third threshold, for example, the third threshold could be 40%, then it can be determined whether to heat the battery based on the aforementioned associated vehicle feature information.
  • the battery temperature is relatively low. If the battery temperature is less than a first threshold and the battery's SOC is less than a third threshold, it can be further determined whether battery heating is required based on the aforementioned associated characteristic information.
  • the vehicle may currently be in a drive-discharge condition (i.e., vehicle speed not equal to 0) or a vehicle-powered but driveless condition (i.e., vehicle-powered but vehicle speed equal to 0).
  • battery heating it can be understood as issuing or responding to a heating command; if battery heating is not required, it can be understood as not responding to a heating command, which may be triggered when the battery temperature is less than the first threshold. Further, the heating command may be triggered when the battery temperature is less than the first threshold and the SOC is less than the third threshold.
  • the following example illustrates how to determine whether to heat the battery based on the conditions satisfied by the associated feature information.
  • the associated feature information includes the vehicle speed, in which case it can be determined whether to heat the battery based on the vehicle speed.
  • the fourth threshold can be, for example, 60 km/h.
  • the battery may experience a sudden change in SOC during high-power discharge if it is not heated. However, this has less impact when driving in urban areas where low speeds are required. Therefore, when the vehicle speed is below the fourth threshold, it is not necessary to heat the battery, thereby reducing unnecessary energy waste.
  • the battery temperature is below the first threshold and the battery's State of Charge (SOC) is below the third threshold
  • SOC State of Charge
  • the associated feature information includes vehicle navigation information, in which case it can be determined whether to heat the battery based on at least one driving parameter determined by the navigation information.
  • the vehicle When the battery temperature is below a first threshold and the battery's SOC is below a third threshold, if the vehicle is in a driving discharge condition (i.e., vehicle speed is not equal to 0) or in a fully powered but non-driving condition (i.e., vehicle speed is equal to 0), and navigation information of the vehicle can be obtained, and at least one driving parameter of the vehicle can be determined based on the navigation information, if each of the at least one driving parameter satisfies its corresponding driving parameter condition, i.e., the second condition includes at least one driving parameter of the vehicle satisfying its corresponding driving parameter condition, then it is determined that the battery will not be heated.
  • Each driving parameter corresponds to a driving parameter condition, which is used to limit the conditions that the corresponding driving parameter must satisfy when the battery is not heated.
  • any one of the at least one driving parameter may include any one of the following: the predicted driving time of the vehicle from the starting point to the destination, the predicted driving speed of the vehicle, the predicted driving distance of the vehicle from the starting point to the destination, and the predicted SOC of the vehicle when it reaches the destination.
  • the predicted SOC when the vehicle reaches the destination can be calculated based on at least one of the predicted time, predicted driving speed, and predicted driving distance. This predicted SOC can be understood as the remaining SOC when the vehicle reaches the destination. Examples of driving parameter conditions corresponding to each driving parameter are given below.
  • the driving parameter condition corresponding to the predicted driving time is: the predicted driving time is less than the fifth threshold.
  • the driving parameter condition corresponding to the predicted driving speed is: the predicted driving speed is less than the sixth threshold; in some embodiments, the predicted driving speed being less than the sixth threshold can be further limited to the duration of the predicted driving speed being less than the sixth threshold being less than a time threshold.
  • the driving parameter condition corresponding to the predicted driving distance is: the predicted driving distance is less than the seventh threshold.
  • the driving parameter condition for predicting SOC is: the predicted SOC is greater than the eighth threshold.
  • the eighth threshold is 10%.
  • the battery is heated if at least one of the driving parameters does not meet the corresponding driving parameter conditions. For example, if the predicted driving speed is greater than a sixth threshold, such as when the vehicle is about to enter a highway section, the battery will be heated to prevent the SOC from jumping due to insufficient heating.
  • a sixth threshold such as when the vehicle is about to enter a highway section
  • the at least one driving parameter can be used to go to the charging station for charging, in this operating condition, when the battery temperature is detected to be less than a first threshold, and further, the battery's SOC is less than a third threshold, the battery will be heated in order to ensure fast charging, even if other driving parameters meet the corresponding driving parameter conditions.
  • the associated feature information includes at least one of the vehicle speed or the vehicle's discharge power, and the determination of whether to heat the battery is based on at least one of the vehicle speed or the discharge power.
  • the battery temperature is below the first threshold and the battery's SOC is below the third threshold, and at least one of the following conditions is met: the vehicle speed is 0, or the vehicle's discharge power is less than the ninth threshold, i.e., the second condition includes at least one of the following: the vehicle speed is 0, or the vehicle's discharge power is less than the ninth threshold, then it is determined that battery heating is not required.
  • the vehicle speed is 0, or the vehicle's discharge power is less than the ninth threshold
  • the second condition includes at least one of the following: the vehicle speed is 0, or the vehicle's discharge power is less than the ninth threshold
  • At least one driving parameter can be determined based on the navigation information. Based on this at least one driving parameter, it can be determined whether to heat the battery, similar to the situation where the user turns on the air conditioning to warm up the passenger compartment before driving.
  • the associated feature information includes navigation information, which determines that the vehicle will enter a highway section and that the battery needs to be heated.
  • the user when the vehicle is powered on but not driven, the user turns on the navigation information and determines that the vehicle will enter a highway section based on the navigation information. That is, if the first condition includes the navigation information indicating that the vehicle will enter a highway section, then it is determined that the battery needs to be heated.
  • the battery management system may also heat up the battery one hour before entering the highway, if the battery management system determines that it will enter a highway section based on navigation information, and determines the mileage and estimated duration of the upcoming highway entry, during the transition between road conditions, when the vehicle is traveling at low speed in urban areas.
  • heating can be stopped when the battery reaches the temperature corresponding to the high-speed driving speed. That is, heating can be stopped when the battery is heated to the point where the SOC does not change during high-speed driving. For example, when the vehicle speed is less than 80 km/h, heating can be stopped at -2°C; when the vehicle speed is greater than 100 km/h, heating can be stopped at 5°C.
  • the electric drive when a vehicle is traveling at high speed, the electric drive generates a large amount of heat and waste heat. If the battery does not require heating, the speed of the oil pump or water pump in the powertrain can be reduced to decrease the heat transferred to the environment. In high-speed conditions, if the vehicle has thermal management requirements (e.g., the battery temperature is below a first threshold, and the battery SOC is below a third threshold), it directly responds to the heating command, i.e., heats the battery to prevent SOC fluctuations or insufficient discharge.
  • thermal management requirements e.g., the battery temperature is below a first threshold, and the battery SOC is below a third threshold
  • the battery temperature is greater than the second threshold and the vehicle's associated feature information meets the third condition, it is determined that the battery will not be cooled.
  • the associated feature information includes at least one of the following: battery charging power, ambient temperature of the vehicle, battery SOC, or vehicle speed.
  • the battery temperature continuously rises during high-power discharge of the vehicle, or during charging of the vehicle.
  • some embodiments of this disclosure may further determine whether to cool the battery based on associated feature information. If battery cooling is required, it can be understood as responding to a battery cooling command; if battery cooling is not required, it can be understood as not responding to a battery cooling command.
  • the battery cooling command may be triggered when the battery temperature exceeds the second threshold.
  • the battery temperature when the battery temperature is greater than a second threshold, it can be further determined whether the battery needs to be cooled based on associated feature information. For example, if the ambient temperature is low and the vehicle speed is low, there is no need for additional forced cooling, and the battery can be cooled naturally by the low ambient temperature, thereby avoiding additional energy waste and thus helping to improve the driving range.
  • the following example illustrates how to determine whether to cool the battery based on associated feature information.
  • the associated feature information includes the ambient temperature of the vehicle and the vehicle speed, and the determination of whether to cool the battery is based on the ambient temperature of the vehicle and the vehicle speed.
  • the third condition determines that cooling of the battery is not required.
  • the battery's natural cooling effect is enhanced. Even without forced battery cooling, natural cooling can balance or exceed the battery's heat generation. Therefore, not cooling in this condition reduces thermal management energy consumption and increases driving range.
  • the battery temperature exceeds the second threshold, and the ambient temperature of the vehicle exceeds the tenth threshold, and the vehicle's discharge power exceeds the ninth threshold, meaning the vehicle is discharging at high power (e.g., the vehicle speed exceeds the fourth threshold), the battery temperature will continue to rise without battery cooling, posing a risk of limiting the vehicle's power. Therefore, battery cooling is required in this condition.
  • the associated feature information includes at least one of the battery's charging power or the ambient temperature of the vehicle, in which case it can be determined whether to cool the battery based on at least one of the battery's charging power or the ambient temperature of the vehicle.
  • the battery When the battery is charging, if the detected battery temperature is greater than a second threshold, and the charging power is less than a twelfth threshold (e.g., the twelfth threshold is 60 kW), and the ambient temperature of the vehicle is less than a thirteenth threshold (i.e., the third condition includes at least one of the following: charging power less than the twelfth threshold, or the ambient temperature of the vehicle is less than the thirteenth threshold), it is determined that the battery will not be cooled. In other words, under this operating condition, the battery can be naturally cooled by the ambient temperature.
  • a twelfth threshold e.g., the twelfth threshold is 60 kW
  • the ambient temperature of the vehicle i.e., the third condition includes at least one of the following: charging power less than the twelfth threshold, or the ambient temperature of the vehicle is less than the thirteenth threshold
  • the associated feature information may include the battery's SOC, the ambient temperature of the vehicle, and the vehicle's speed. In this case, it can be determined whether to cool the battery based on the battery's SOC, the ambient temperature of the vehicle, and the vehicle's speed.
  • the battery temperature is detected to be higher than the second threshold, and the battery's SOC is higher than the fourteenth threshold (e.g., the fourteenth threshold is 80%), the ambient temperature is lower than the fifteenth threshold, and the vehicle speed is 0 (i.e., the vehicle is in a low-ambient-temperature stationary condition), then it is determined that the battery will not be cooled. In this case, the battery can be naturally cooled by the ambient temperature.
  • the user before steps 202 and 203 are executed, the user needs to activate the energy-saving mode.
  • the user can activate the energy-saving mode through the portable application description (PAD) of the central control software, or through a physical button, or through a mobile application (APP).
  • the energy-saving mode can be activated when the vehicle is in Eco mode, Normal mode, or Sport mode.
  • FIG 3 is a schematic diagram of a battery temperature control device according to some embodiments.
  • the battery temperature control device may include an acquisition unit 21 and a determination unit 22.
  • the acquisition unit 21 is configured to acquire the battery temperature of the vehicle.
  • the determining unit 22 is configured to determine whether to heat or cool the battery based on the battery temperature and associated characteristic information of the vehicle.
  • the associated feature information of the vehicle includes at least one of the following: the vehicle's navigation information, the vehicle's speed, the vehicle's discharge power, the battery's charging power, the ambient temperature of the vehicle, and the battery's SOC.
  • the determining unit 22 is further configured to: if the battery temperature is less than a first threshold and the vehicle's associated feature information satisfies a first condition, determine whether to heat the battery based on the vehicle's associated feature information.
  • the determining unit 22 is further configured to: if the battery temperature is less than a first threshold and the associated feature information of the vehicle meets a second condition, determine that the battery should not be heated.
  • the determining unit 22 is further configured to: determine that the battery should not be cooled if the battery temperature is greater than a second threshold and the associated feature information of the vehicle meets a third condition.
  • the determining unit 22 is further configured to determine that the SOC of the battery is less than a third threshold.
  • the associated feature information includes the vehicle's speed.
  • the second condition includes: the vehicle speed is less than the fourth threshold.
  • the associated feature information includes the vehicle's navigation information.
  • the second condition includes: at least one driving parameter of the vehicle satisfies a corresponding driving parameter condition, and the driving parameter is determined by the navigation information.
  • the at least one driving parameter includes at least one of the following: the predicted driving time of the vehicle from the starting point to the destination, the predicted driving speed of the vehicle, the predicted driving distance of the vehicle from the starting point to the destination, and the predicted SOC of the vehicle when it reaches the destination.
  • the driving parameter condition corresponding to the predicted driving time is: the predicted driving time is less than the fifth threshold.
  • the driving parameter condition corresponding to the predicted driving speed is: the predicted driving speed is less than the sixth threshold.
  • the driving parameter condition corresponding to the predicted driving distance is: the predicted driving distance is less than the seventh threshold.
  • the driving parameter condition corresponding to the predicted SOC is: the predicted SOC is greater than the eighth threshold.
  • the associated feature information includes at least one of the vehicle speed or the vehicle's discharge power; the second condition includes at least one of the following: the vehicle speed is 0, or the vehicle's discharge power is less than a ninth threshold.
  • the vehicle's associated characteristic information includes the vehicle's navigation information.
  • a first condition includes: the navigation information indicates that the vehicle will enter a highway section.
  • the associated characteristic information of the vehicle includes the ambient temperature of the vehicle and the vehicle speed.
  • the third condition includes: the ambient temperature of the vehicle is less than the tenth threshold, and the vehicle speed is less than the eleventh threshold.
  • the associated feature information includes at least one of the battery charging power or the ambient temperature of the vehicle.
  • the third condition includes at least one of the following: when the battery is charging, the charging power is less than a twelfth threshold, or the ambient temperature of the vehicle is less than a thirteenth threshold.
  • the associated feature information includes the battery's SOC, the ambient temperature of the vehicle, and the vehicle's speed.
  • the third condition includes: when the battery is fully charged, the battery's SOC is greater than the fourteenth threshold, the ambient temperature of the vehicle is less than the fifteenth threshold, and the vehicle's speed is 0.
  • FIG. 4 shows a schematic diagram of another battery temperature control device according to some embodiments.
  • This battery temperature control device can be the battery management system described above, and can be used to implement the steps of the battery temperature control method performed by the battery management system as described above.
  • the battery temperature control device may include: a processor 31, a memory 32, and a bus system 33.
  • the memory 32 includes, but is not limited to, RAM, ROM, EPROM, or CD-ROM, and is configured to store related instructions and data.
  • the memory 32 stores executable modules or data structures, or subsets thereof, or extended sets thereof.
  • Operation instructions This includes various operation instructions used to perform various operations.
  • Operating system includes various system programs used to implement various basic business functions and handle hardware-based tasks.
  • FIG. 4 shows only one memory, but of course, the battery temperature control device may also include multiple memories.
  • the battery temperature control device may further include an input/output device 34, which may be a communication module or a transceiver circuit.
  • the input/output device 34 is configured to perform the transmission and reception of data or signaling such as motor speed and motor acceleration involved in the above embodiments.
  • Processor 31 may be a controller, CPU, general-purpose processor, DSP, ASIC, FPGA, or other programmable logic device, transistor logic device, hardware component, or any combination thereof. It may implement or execute the various logic blocks, modules, and circuits described in connection with some embodiments of this disclosure. Processor 31 may also be a combination that implements computational functions, such as a combination of one or more microprocessors, a combination of a DSP and a microprocessor, etc.
  • bus system 33 includes not only a data bus but may also include a power bus, a control bus, and a status signal bus. However, for clarity, all buses are labeled as bus system 33 in Figure 4. For ease of illustration, Figure 4 is only shown schematically.
  • the processor in some embodiments of this disclosure can be an integrated circuit chip with signal processing capabilities.
  • the steps of the above method embodiments can be completed by integrated logic circuits in the processor's hardware or by instructions in software form.
  • the processor described above can be a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components. It can implement or execute the methods, steps, and logic block diagrams disclosed in some embodiments of this disclosure.
  • non-volatile memory may be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory.
  • Volatile memory may be random access memory (RAM), which is used as an external cache.
  • RAM random access memory
  • DRAM dynamic random access memory
  • SDRAM synchronous dynamic random access memory
  • DDR SDRAM double data rate synchronous dynamic random access memory
  • ESDRAM enhanced synchronous dynamic random access memory
  • SLDRAM synchronous linked dynamic random access memory
  • DR RAM direct rambus RAM
  • Some embodiments of this disclosure also provide a computer-readable storage medium having a computer program stored thereon, which, when executed by a computer, implements the methods or steps executed by the controller in the above embodiments.
  • Some embodiments of this disclosure also provide a computer program product that, when executed by a computer, implements the methods or steps executed by the controller in the above embodiments.
  • FIG5 is a structural schematic diagram of a vehicle according to some embodiments.
  • the vehicle may include the battery temperature control device described in the foregoing embodiments.
  • the vehicle may also include multiple wheels, seats, on-board power supply, electrical equipment, etc.
  • the program can be stored in a computer-readable storage device, which may include: a flash drive, a read-only memory (ROM), a random access memory (RAM), a disk, or an optical disk, etc.
  • a computer-readable storage device which may include: a flash drive, a read-only memory (ROM), a random access memory (RAM), a disk, or an optical disk, etc.
  • Computer-readable media include computer storage media and communication media, wherein communication media include any medium that facilitates the transfer of a computer program from one place to another.
  • Storage media can be any available medium accessible to a general-purpose or special-purpose computer.

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Abstract

一种电池温度控制方法、装置、计算机可读存储介质及车辆，电池温度控制方法包括：获取车辆的电池温度；根据电池温度和车辆的关联特征信息，确定是否对电池加热或冷却。

Description

电池温度控制方法、装置、计算机可读存储介质及车辆
本申请要求于2024年05月31日提交的、申请号为202410704129.4的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本公开涉及车辆控制技术领域，尤其涉及一种电池温度控制方法、装置、计算机可读存储介质及车辆。
背景技术
现阶段电动汽车已经非常普及，电动汽车包括电池。在低环境温度中，电池的温度通常比较低，在检测到电池温度比较低时，便会启动加热电池，加热到预设温度即停止加热。在高环境温度中，电池的放电功率较大时，电池温度会比较高，在检测到电池温度比较高时，便会启动冷却。电池加热或冷却时通常需要耗费一定能量，例如，电池加热的一般热源来自加热器或电机主动产热，加热时间较长，且水温从-20℃以下升高到目标温度较慢。
发明内容
本公开一些实施例提供一种电池温度控制方法、装置、计算机可读存储介质及车辆，可以减少不必要的能量浪费，提高续航里程。
第一方面，本公开一些实施例提供了一种电池温度控制方法，包括：获取车辆的电池温度；根据所述电池温度和所述车辆的关联特征信息，确定是否对所述电池加热或冷却。
实施第一方面的方法，不是仅仅根据电池温度来确定是否对电池加热或冷却，而是会根据电池温度和车辆的关联特征信息共同确定是否需要对电池加热，从而可以减少不必要的能量浪费，提高续航里程。
在一些实施例中，车辆的关联特征信息包括以下至少一项：车辆的导航信息、车辆的车速、车辆的放电功率、电池的充电功率、车辆所处环境温度、电池的荷电状态(State of Charge，SOC)。
在一些实施例中，根据电池温度和车辆的关联特征信息，确定是否对电池加热或冷却包括：
若电池温度小于第一阈值，且车辆的关联特征信息满足第一条件时，确定对电池进行加热。
在一些实施例中，根据电池温度和车辆的关联特征信息，确定是否对电池加热或冷却包括：
若电池温度小于第一阈值，且车辆的关联特征信息满足第二条件时，确定不对电池进行加热。
在一些实施例中，根据电池温度和车辆的关联特征信息，确定是否对电池加热或冷却还包括：
若电池温度大于第二阈值，且车辆的关联特征信息满足第三条件时，确定不对电池进行冷却。
在一些实施例中，在根据车辆的关联特征信息确定是否对电池进行加热之前，还包括：
确定电池的荷电状态SOC小于第三阈值。
在一些实施例中，关联特征信息包括车辆的车速；
第二条件包括：车辆的车速小于第四阈值。
在一些实施例中，关联特征信息包括车辆的导航信息；
第二条件包括：车辆的至少一个行驶参数中的各个行驶参数分别满足对应的行驶参数条件，行驶参数由导航信息确定。
在一些实施例中，至少一个行驶参数包括以下至少一项：车辆从起点到终点的预测行驶时间、车辆的预测行驶车速、车辆从起点到终点行驶的预测行驶距离、车辆到达终点时的预测SOC；
预测行驶时间对应的行驶参数条件为：预测行驶时间小于第五阈值；
预测行驶车速对应的行驶参数条件为：预测行驶车速小于第六阈值；
预测行驶距离对应的行驶参数条件为：预测行驶距离小于第七阈值；
预测SOC对应的行驶参数条件为：预测SOC大于第八阈值。
在一些实施例中，关联特征信息包括以下至少之一：车辆的车速或车辆的放电功率；
第二条件包括以下至少之一：车速为0，或，车辆的放电功率小于第九阈值。
在一些实施例中，车辆的关联特征信息包括车辆的导航信息；
第一条件包括：导航信息指示车辆将进入高速路段。
在一些实施例中，车辆的关联特征信息包括车辆所处环境温度和车辆的车速；
第三条件包括：车辆所处环境温度小于第十阈值，车辆的车速小于第十一阈值。
在一些实施例中，关联特征信息包括电池的充电功率或车辆所处环境温度中的至少之一；
第三条件包括以下至少之一：电池充电时，充电功率小于第十二阈值，或，车辆所处环境温度小于第十三阈值。
在一些实施例中，关联特征信息包括电池的SOC、车辆所处环境温度、车辆的车速；
第三条件包括：在电池充电完成时，电池的SOC大于第十四阈值，车辆所处环境温度小于第十五阈值，车辆的车速等于0。
第二方面，本公开一些实施例提供了一种电池温度控制装置，包括：
获取单元，用于检测车辆的电池温度；
确定单元，用于根据电池温度和车辆的关联特征信息，确定是否对电池加热或冷却。
在一些实施例中，车辆的关联特征信息包括以下至少一项：车辆的导航信息、车辆的车速、车辆的放电功率、电池的充电功率、车辆所处环境温度、电池的SOC。
在一些实施例中，确定单元用于：
若电池温度小于第一阈值时，且车辆的关联特征信息满足第一条件时，根据车辆的关联特征信息确定是否对电池进行加热。
在一些实施例中，确定单元用于：
若电池温度小于第一阈值，且车辆的关联特征信息满足第二条件时，确定不对电池进行加热。
在一些实施例中，若电池温度大于第二阈值，且车辆的关联特征信息满足第三条件时，确定不对电池进行冷却。
在一些实施例中，确定单元还用于确定电池的SOC小于第三阈值。
在一些实施例中，车辆的关联特征信息包括车辆的车速；
第二条件包括：车辆的车速小于第四阈值。
在一些实施例中，关联特征信息包括车辆的导航信息；
第二条件包括：车辆的至少一个行驶参数满足对应的行驶参数条件，行驶参数由导航信息确定。
在一些实施例中，至少一个行驶参数包括以下至少一项：车辆从起点到终点的预测行驶时间、车辆的预测行驶车速、车辆从起点到终点行驶的预测行驶距离、车辆到达终点时的预测SOC；
预测行驶时间对应的行驶参数条件为：预测行驶时间小于第五阈值；
预测行驶车速对应的行驶参数条件为：预测行驶车速小于第六阈值；
预测行驶距离对应的行驶参数条件为：预测行驶距离小于第七阈值；
预测SOC对应的行驶参数条件为：预测SOC大于第八阈值。
在一些实施例中，关联特征信息包括车辆的车速或车辆的放电功率中的至少之一；
第二条件包括以下至少之一：车速为0，或，车辆的放电功率小于第九阈值。
在一些实施例中，车辆的关联特征信息包括车辆的导航信息；
第一条件包括：导航信息指示车辆将进入高速路段。
在一些实施例中，车辆的关联特征信息包括车辆所处环境温度和车辆的车速；
第三条件包括：车辆所处环境温度小于第十阈值，车辆的车速小于第十一阈值。
在一些实施例中，关联特征信息包括电池的充电功率和/或车辆所处环境温度；
第三条件包括以下至少之一：电池充电时，充电功率小于第十二阈值，或，车辆所处环境温度小于第十三阈值。
在一些实施例中，关联特征信息包括电池的SOC、车辆所处环境温度、车辆的车速；
第三条件包括：在电池充电完成时，电池的SOC大于第十四阈值，车辆所处环境温度小于第十五阈值，车辆的车速等于0。
第三方面，本公开一些实施例提供了一种计算机可读存储介质，该计算机可读存储介质用于存储计算机程序，当该计算机程序在计算机上运行时，使得计算机执行上述第一方面中任意一种可能的实现方式所提供的电池温度控制方法，也能实现第一方面提供的电池温度控制方法所具备的有益效果。
第四方面，本公开一些实施例提供了一种电池温度控制装置，该电池温度控制可包括处理器和存储器，上述处理器和存储器相互连接。上述存储器用于存储计算机程序，上述处理器被配置用于执行上述计算机程序以实现上述第一方面提供的电池温度控制方法，也能实现上述第一方面提供的电池温度控制方法所具备的有益效果。
第五方面，本公开一些实施例提供了一种车辆，该车辆可包括上述第二方面或第四方面提供的电池温度控制装置。
第六方面，本公开一些实施例提供一种芯片系统，该芯片系统包括一个或多个处理器，该处理器用于调用计算机指令以使得该计算设备执行该第一方面或第一方面的任意可能的实现方式所示的方法。
第七方面，本公开提供一种包含指令的计算机程序产品，当该计算机程序产品在计算设备上运行时，使得该计算设备执行如第一方面以及第一方面中任一可能的实现方式描述的方法。
可以理解的是，上述第二方面至第七方面提供的相关产品均用于执行本公开一些实施例中第一方面或第一方面的任一实现方式所示的方法。因此，其所能达到的有益效果可参考对应方法中的有益效果，此处不再赘述。
通过实施本公开一些实施例，在检测到电池温度比较低，且电池的SOC比较低时，不会立马就对电池进行加热，而是会进一步根据车辆的导航信息、车辆的车速、车辆的放电功率中至少一项确定是否需要对电池加热，例如，在低车速或者低放电功率时不需要加热，从而可以减少不必要的能量浪费，提高续航里程。
附图说明
下面将对实施例描述中所需要使用的附图作简单的介绍。
图1为根据一些实施例的一种电池温度控制方法的流程图；
图2是根据一些实施例的另一种电池温度控制方法的流程图；
图3为根据一些实施例的一种电池温度控制装置的框图；
图4为根据一些实施例的另一种电池温度控制装置的框图；
图5为根据一些实施例的一种车辆的结构图。
具体实施方式
下面结合附图对本公开作进一步详细描述。
本公开以下实施例中所使用的术语只是为了描述特定实施例的目的，而并非旨在作为对本公开的限制。如在本公开的说明书和所附权利要求书中所使用的那样，单数表达形式“一个”、“一种”、“所述”、“上述”、“该”和“这一”旨在也包括复数表达形式，除非其上下文中明确地有相反指示。
车辆包括电池，相关技术中的电池的热管理策略中，在电池温度小于第一阈值时，即启动对电池进行加热的操作，当电池温度大于第二阈值时，即启动对电池进行冷却的操作，这样，会造成能量浪费，降低车辆的续航里程，因此，如何节省能量，提高续航里程为一个亟待解决的问题。
为解决上述问题，本公开一些实施例提供一种电池温度控制方法。图1是根据一些实施例的一种电池温度控制方法的流程示意图。如图1所示，该电池温度控制方法包括以下步骤：
101，获取车辆的电池温度。
在一些实施例中，车辆的电池温度可以在对车辆充电时升高；或者，车辆的电池温度可以随着环境温度的变化而变化；例如，在环境温度较低(比如环境温度小于或等于-5度)时，电池温度也比较低；或者，车辆的电池温度会随着车辆的放电功率的大小而变化，例如，车辆的放电功率比较大(比如高功率放电，放电功率超过预定阈值)时，电池温度会升高。以上场景仅为举例。
102，根据电池温度和车辆的关联特征信息，确定是否对电池加热或冷却。
本公开一些实施例中，车辆的关联特征信息可以包括但不限于以下至少一项：车辆的导航信息、车辆的车速、车辆的放电功率、车辆的电池的充电功率、车辆所处环境温度、车辆的电池的荷电状态(state of charge，SOC)等等。可根据电池温度和车辆的关联特征信息联合确定是否对电池加热或冷却，从而可避免在电池温度比较低时就对电池加热，或者在电池温度比较高时就对电池冷却。
需要说明的是，在很多场景中，虽然电池温度较低，也可以不对电池加热，虽然电池温度较高，也可以不对电池冷却，从而节省能量。
例如，在电池温度小于第一阈值时，进一步根据车辆的关联特征信息确定是否对电池进行加热，此时，该关联特征信息可以包括以下至少一项：车辆的导航信息、车辆的车速、车辆的放电功率等。确定是否对电池进行加热的方式可参照图2的描述。
在一些实施例中，在电池温度小于第一阈值，且电池的SOC小于第三阈值时，根据车辆的关联特征信息确定是否对电池进行加热。
再例如，在电池温度大于第二阈值时，进一步根据车辆的关联特征信息确定是否对电池进行加热，该关联特征信息可以包括以下至少一项：车辆的导航信息、车辆的车速、车辆的放电功率等。确定是否对电池进行加热的方式可参照图2中的描述。图2是根据一些实施例的另一种电池温度控制方法的流程示意图。如图2所示，该电池温度控制方法包括以下步骤：
201，获取车辆的电池温度。
步骤201与步骤101类似，在此不再赘述。
202，若电池温度小于第一阈值，且车辆的关联特征信息满足第一条件时，确定对电池进行加热。
203，若电池温度小于第一阈值，且车辆的关联特征信息满足第二条件时，确定不对电池进行加热。
这里，关联特征信息包括以下至少一项：车辆的导航信息、车辆的车速或车辆的放电功率。若电池温度小于第一阈值，且电池的SOC小于第三阈值，例如，该第三阈值可以为40％，此时，可以根据上述车辆的关联特征信息确定是否对电池进行加热。
在低环境温度(例如环境温度小于或等于-5度)中时，电池温度比较低。如果电池温度小于第一阈值，并且电池的SOC小于第三阈值，可根据上述关联特征信息进一步确定是否需要对电池加热。在一些实施例中，该车辆当前可以是处于驱动放电工况(即车速不等于0)或者处于整车上电无驱动工况(即整车上电但是车速等于0)。如果需要对电池加热，可理解为发出或响应加热指令，如果不需要对电池加热，可理解为不响应加热指令，该加热指令可以是在电池温度小于第一阈值时触发的。进一步地，该加热指令可以是在电池温度小于第一阈值且SOC小于第三阈值时触发的。
下面举例说明如何根据关联特征信息所满足的条件确定是否对电池加热。
在一些实施例中，关联特征信息包括车辆的车速，此时，可以根据车辆的车速确定是否对电池加热。
在电池温度小于第一阈值，并且电池的SOC小于第三阈值的情况下，如果车辆的车速小于第四阈值，即，第二条件包括车辆的车速小于第四阈值，可确定不对电池加热。这里，第四阈值例如可以为60km/h。
可以理解的是，通常在低温且电池的SOC小于第三阈值的情况下，如不进行电池加热，在高功率放电时会导致SOC骤变的情况发生，但是在要求车辆低速行驶的市区内行驶时受此影响较小，因此，在车辆的车速小于第四阈值时，可以不需要对电池加热，从而减少不必要的能量浪费。
当电池温度小于第一阈值，并且电池的SOC小于第三阈值时，如果车辆的车速大于或等于第四阈值，即，第一条件包括车辆的车速大于第四阈值，可确定需要对电池加热。可以理解的是，由于车辆的车速较大，车辆的放电功率比较大，如果不进行加热会导致SOC骤变的情况，因此，需要对电池进行加热。
在一些实施例中，关联特征信息包括车辆的导航信息，此时，可以根据导航信息所确定的至少一个行驶参数确定是否对电池加热。
在电池温度小于第一阈值，并且电池的SOC小于第三阈值的情况下，如果在车辆处于驱动放电工况(即车速不等于0)时，或者在车辆处于整车上电无驱动工况(即车速等于0)时，可获取车辆的导航信息，并且根据导航信息可确定车辆的至少一个行驶参数，如果至少一个行驶参数中的各个行驶参数分别满足对应的行驶参数条件，即，第二条件包括车辆的至少一个行驶参数满足对应的行驶参数条件，则确定不对电池加热。每个行驶参数对应一个行驶参数条件，该行驶参数条件用于限定不对电池加热时对应的行驶参数需要满足的条件。
在一些实施例中，该至少一个行驶参数中的任一个行驶参数可以包括以下中的任一个：车辆从起点到终点的预测行驶时间、车辆的预测行驶车速、车辆从起点到终点行驶的预测行驶距离、车辆到达终点时的预测SOC。
这里，车辆到达终点时的预测SOC可以是根据预测时间、预测行驶车速、预测行驶距离中的至少一项计算得到的，该预测SOC可理解为车辆到达终点时的剩余SOC。下面对各个行驶参数对应的行驶参数条件进行举例。
预测行驶时间对应的行驶参数条件为：预测行驶时间小于第五阈值。
预测行驶车速对应的行驶参数条件为：预测行驶车速小于第六阈值；在一些实施例中，预测行驶车速小于第六阈值可以进一步限定为预测行驶车速小于第六阈值的持续时间小于一个时间阈值。
预测行驶距离对应的行驶参数条件为：预测行驶距离小于第七阈值。
预测SOC对应的行驶参数条件为：预测SOC大于第八阈值。例如，第八阈值为10％。
在一些实施例中，如果至少一个行驶参数中存在行驶参数不满足对应的行驶参数条件，则对电池进行加热。例如，在预测行驶车速大于第六阈值的情况下，比如，在车辆将会进入高速路段的情况下，则会对电池进行加热，以免出现加热不及时导致SOC跳变的情况。
在一些实施例中，如果至少一个行驶参数中包括终点位置信息，且终点位置信息为充电站，即该至少一个行驶参数可以用于前往充电站进行充电，在该种工况，在检测到电池温度小于第一阈值时，进一步地，电池的SOC小于第三阈值，为了保证充电的快速性，会对电池进行加热，即使其他行驶参数满足对应的行驶参数条件。
在一些实施例中，关联特征信息包括车辆的车速或车辆的放电功率中的至少之一，根据车辆的车速或放电功率中的至少之一确定是否对电池加热。
在电池温度小于第一阈值，并且电池的SOC小于第三阈值的情况下，如果满足以下至少之一：车辆的车速为0，或，车辆的放电功率小于第九阈值，即，第二条件包括以下至少之一：车辆为0，或，车辆的放电功率小于第九阈值，则确定可以不对电池加热。例如，车辆处于整车上电无驱动工况(即车速等于0)时，环境温度较低，用户行车前，开启空调进行乘员舱暖车，但单乘员舱采暖放电功率较小，一般小于10kw，即，车辆的放电功率小于第九阈值(如10KW)，电池加热需求较低，可不进入电池加热。
可理解的是，如果在整车上电无驱动工况时，如果打开导航信息，例如在暖车时打开导航，则可以根据导航信息确定至少一个行驶参数，根据该至少一个行驶参数来确定是否对电池加热，参照用户行车前，开启空调进行乘员舱暖车的情况。
在一些实施例中，关联特征信息包括导航信息，根据导航信息所确定的将进入高速路段，确定需要对电池加热。
在一些实施例中，可以是在整车上电无驱动的工况时，用户打开导航信息，根据导航信息确定将进入高速路段，即，第一条件包括导航信息指示车辆将进入高速路段，则确定需要对电池加热。
在一些实施例中，也可以是在路况交替的过程中，在车辆行驶在市区低车速路况时，如果电池管理系统根据导航信息确定将进入高速路段，确定即将进入高速路况的行驶里程以及预计时长，在即将进入高速路况之前的一个时长内，进行电池加热。
进一步地，可根据在高速的行驶车速加热到高速的行驶车速对应的温度退出加热，即，将电池加热至满足高速行驶SOC不发生跳变即可停止加热。例如，在车速小于80km/h的情况下，加热至-2℃退出；在车速大于100km/h的情况下，加热至5℃退出。
在一些实施例中，车辆在高速行驶时，电驱动产热量大，余热较多，若电池无加热需求，可降低动力总成中油泵的转速或水泵的转速，以减少传递至环境中的热量。在高速路况中，若车辆有热管理需求(例如电池温度小于第一阈值，电池SOC小于第三阈值)则直接响应加热指令，即对电池加热，以免出现SOC跳变或放电量不足的情况。
当车辆将从高速路况进入市区低速路况，例如车辆的车速小于第四阈值，则如果在高速路况电池处于加热状态，则停止电池加热，从而减少能量浪费，如果在高速路况电池未启动加热，则继续保持不对电池加热的状态。
204，若电池温度大于第二阈值，且车辆的关联特征信息满足第三条件，确定不对电池进行冷却。
关联特征信息包括以下至少一项：电池的充电功率、车辆所处环境温度、电池的SOC或车辆的车速。
在一些实施例中，在车辆进行大功率放电时，电池温度会持续上升，或者车辆在充电时，电池温度会持续上升。在电池温度大于第二阈值时，本公开一些实施例可进一步地根据关联特征信息确定是否对电池进行冷却。如果需要对电池冷却，可理解为响应电池冷却指令，如果不需要对电池冷却，可理解为不响应电池冷却指令。该电池冷却指令可以是在电池温度大于第二阈值时触发的。
本公开一些实施例中，在电池温度大于第二阈值时，可进一步地根据关联特征信息确定是否需要对电池进行冷却，例如，如果环境温度较低，车辆的车速较低，则可以无需额外进行强制冷却，可通过低环境温度自然冷却，从而避免额外的能量浪费，进而有利于提高续航里程。
下面举例说明如何根据关联特征信息确定是否对电池冷却。
在一些实施例中，关联特征信息包括车辆所处环境温度和车辆的车速，根据车辆所处环境温度和车辆的车速确定是否对电池进行冷却。
在检测到电池温度大于第二阈值的情况下，若车辆所处的环境温度小于第十阈值，例如，第十阈值为25℃，车辆的车速小于第十一阈值，例如，第十一阈值为60km/h，即，第三条件包括：车辆的所处环境温度小于第十阈值，车辆的车速小于第十一阈值，确定不对所述电池进行冷却。在该工况中，电池的自然冷却效果增强，即使不进入强制电池冷却，通过自然冷却即可平衡电池产热或高于电池产热量，因此在该工况中不进行冷却可降低热管理能耗，提高续航里程。
在电池温度大于第二阈值的情况下，若车辆所处环境温度大于第十阈值，车辆的放电功率还大于第九阈值，即车辆进行大功率放电，例如，车辆的车速大于第四阈值，在该工况下，若无电池冷却，电池温度会持续上升，有整车动力受限的风险，因此，该工况需要对电池进行冷却。
在一些实施例中，关联特征信息包括电池的充电功率或车辆所处环境温度中的至少之一，此时，可以根据电池的充电功率或车辆所处环境温度中的至少之一确定是否对电池进行冷却。
当电池充电时，在检测到电池温度大于第二阈值的情况下，若充电功率小于第十二阈值，例如，第十二阈值为60KW，并且车辆所处环境温度小于第十三阈值，即，第三条件包括以下至少之一：充电功率小于第十二阈值，或，车辆所处环境温度小于第十三阈值，确定不对电池进行冷却。即在该工况下，可通过环境温度对电池进行自然冷却。
在一些实施例中，关联特征信息可以包括电池的SOC、车辆所处环境温度、车辆的车速，此时，可根据电池的SOC、车辆所处环境温度、车辆的车速，确定是否对电池进行冷却。
在电池充电完成时，在检测到电池温度大于第二阈值的情况下，若电池的SOC大于第十四阈值，例如，第十四阈值为80％，车辆所处环境温度小于第十五阈值，车辆的车速等于0，即车辆处于低环境温度静置工况，即，第三条件包括：电池的SOC大于第十四阈值，车辆所处环境温度小于第十五阈值，车辆的车速等于0，确定不对所述电池进行冷却。此时，可通过环境温度对电池进行自然冷却。
在本公开一些实施例中，以上步骤202和步骤203执行之前，需要用户开启节能模式，例如，用户可通过中控软件便携式应用描述(portable application descriptio，PAD)开启节能模式，或者也可以通过实体按键开启节能模式，或者也可以通过手机软件(application，APP)开启节能模式。在一些实施例中，在车辆处于经济模式、普通模式或运动模式时，均可开启节能模式。
图3是根据一些实施例的一种电池温度控制装置的结构示意图。如图3所示，该电池温度控制装置可包括获取单元21和确定单元22。
获取单元21被配置为获取车辆的电池温度。
确定单元22被配置为根据所述电池温度和所述车辆的关联特征信息，确定是否对所述电池加热或冷却。
在一些实施例中，所述车辆的关联特征信息包括以下至少一项：所述车辆的导航信息、所述车辆的车速、所述车辆的放电功率、所述电池的充电功率、所述车辆所处环境温度、所述电池的SOC。
在一些实施例中，确定单元22还被配置为：若所述电池温度小于第一阈值时，且车辆的关联特征信息满足第一条件，根据所述车辆的关联特征信息确定是否对所述电池进行加热。
在一些实施例中，确定单元22还被配置为：若电池温度小于第一阈值，且车辆的关联特征信息满足第二条件，确定不对电池进行加热。
在一些实施例中，确定单元22还被配置为：若电池温度大于第二阈值时，且车辆的关联特征信息满足第三条件，确定不对电池进行冷却。
在一些实施例中，确定单元22还被配置为确定电池的SOC小于第三阈值。
在一些实施例中，关联特征信息包括所述车辆的车速。
第二条件包括：车辆的车速小于第四阈值。
在一些实施例中，关联特征信息包括所述车辆的导航信息。第二条件包括：车辆的至少一个行驶参数满足对应的行驶参数条件，行驶参数由导航信息确定。
在一些实施例中，所述至少一个行驶参数包括以下至少一项：所述车辆从起点到终点的预测行驶时间、所述车辆的预测行驶车速、所述车辆从起点到终点行驶的预测行驶距离、所述车辆到达终点时的预测SOC。
所述预测行驶时间对应的行驶参数条件为：所述预测行驶时间小于第五阈值。
所述预测行驶车速对应的行驶参数条件为：所述预测行驶车速小于第六阈值。
所述预测行驶距离对应的行驶参数条件为：所述预测行驶距离小于第七阈值。
所述预测SOC对应的行驶参数条件为：所述预测SOC大于第八阈值。
在一种实施方式中，关联特征信息包括车辆的车速或车辆的放电功率中的至少一个；第二条件包括以下至少之一：车速为0，或，车辆的放电功率小于第九阈值。
在一种实施方式中，车辆的关联特征信息包括车辆的导航信息。第一条件包括：导航信息指示车辆将进入高速路段。
在一种实施方式中，车辆的关联特征信息包括车辆所处环境温度和车辆的车速。第三条件包括：车辆所处环境温度小于第十阈值，车辆的车速小于第十一阈值。
在一种实施方式中，关联特征信息包括电池的充电功率或车辆所处环境温度中的至少之一。第三条件包括以下至少之一：电池充电时，充电功率小于第十二阈值，或，车辆所处环境温度小于第十三阈值。
在一种实施方式中，关联特征信息包括电池的SOC、车辆所处环境温度、车辆的车速。
第三条件包括：在电池充电完成时，电池的SOC大于第十四阈值，车辆所处环境温度小于第十五阈值，车辆的车速等于0。
关于图3的实施例的描述可参照前述方法实施例的描述，在此不再赘述。
图4所示为根据一些实施例的另一种电池温度控制装置的结构示意图。该电池温度控制装置可以是上述实施例中的电池管理系统，可用于实现上述实施例中描述的由电池管理系统执行的电池温度控制方法的步骤。该电池温度控制装置可包括：处理器31、存储器32和总线系统33。
存储器32包括但不限于RAM、ROM、EPROM或CD-ROM，该存储器32被配置为存储相关指令及数据。存储器32存储了如下的元素，可执行模块或者数据结构，或者它们的子集，或者它们的扩展集。
操作指令：包括各种操作指令，用于实现各种操作。
操作系统：包括各种系统程序，用于实现各种基础业务以及处理基于硬件的任务。
图4中仅示出了一个存储器，当然，该电池温度控制装置也可以包括多个存储器。
如图4所示，该电池温度控制装置还可以包括输入输出设备34，该输入输出设备34可以是通信模块、收发电路。应用在本公开一些实施例中，输入输出设备34被配置为执行上述实施例中所涉及的电机转速、电机加速度等数据或者信令的收发过程。
处理器31可以是控制器，CPU，通用处理器，DSP，ASIC，FPGA或者其他可编程逻辑器件、晶体管逻辑器件、硬件部件或者其任意组合。其可以实现或者执行结合本公开一些实施例公开内容所描述的各种逻辑方框，模块和电路。处理器31也可以是实现计算功能的组合，例如包含一个或者多个微处理器组合，DSP和微处理器的组合等等。
在实际应用中，电池温度控制装置的各个组件通过总线系统33耦合在一起，其中总线系统33除包括数据总线之外，还可以包括电源总线、控制总线和状态信号总线等。但是为了清楚说明起见，在图4中将各种总线都标为总线系统33。为便于表示，在图4中仅是示意性画出。
应注意，实际应用中，本公开一些实施例中的处理器可以是一种集成电路芯片，具有信号的处理能力。在实现过程中，上述方法实施例的各步骤可以通过处理器中的硬件的集成逻辑电路或者软件形式的指令完成。上述的处理器可以是通用处理器、数字信号处理器(digital signal Processor，DSP)、专用集成电路(application specific integrated circuit，ASIC)、现成可编程门阵列(field programmable gate array，FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件。可以实现或者执行本公开一些实施例中的公开的各方法、步骤及逻辑框图。
可以理解，本公开一些实施例中的存储器可以是易失性存储器或非易失性存储器，或可包括易失性和非易失性存储器两者。这里，非易失性存储器可以是只读存储器(read-only memory，ROM)、可编程只读存储器(programmable ROM，PROM)、可擦除可编程只读存储器(erasable PROM，EPROM)、电可擦除可编程只读存储器(electrically EPROM，EEPROM)或闪存。易失性存储器可以是随机存取存储器(random access memory，RAM)，其用作外部高速缓存。通过示例性但不是限制性说明，许多形式的RAM可用，例如静态随机存取存储器(static RAM，SRAM)、动态随机存取存储器(dynamic RAM，DRAM)、同步动态随机存取存储器(synchronous DRAM，SDRAM)、双倍数据速率同步动态随机存取存储器(double data rate SDRAM，DDR SDRAM)、增强型同步动态随机存取存储器(enhanced SDRAM，ESDRAM)、同步连接动态随机存取存储器(synchlink DRAM，SLDRAM)和直接内存总线随机存取存储器(direct rambus RAM，DR RAM)。应注意，本公开一些实施例描述的存储器旨在包括但不限于这些和任意其它适合类型的存储器。
本公开一些实施例还提供了一种计算机可读存储介质，其上存储有计算机程序，该计算机程序被计算机执行时实现上述实施例中控制器执行的方法或者步骤。
本公开一些实施例还提供了一种计算机程序产品，该计算机程序产品被计算机执行时实现上述实施例中控制器执行的方法或者步骤。
本公开一些实施例还提供了一种车辆，图5是根据一些实施例的一种车辆的结构示意图。如图5所示，该车辆可包含前文实施例中描述的电池温度控制装置。该车辆还可包括多个车轮、车座、车载电源、电气设备等。
需要说明的是，对于上述的任一种电池温度控制方法的实施例，为了简单描述，故将其都表述为一系列动作组合，但本领域技术人员应该知悉，本公开不受所描述的动作顺序的限制，因为依据本公开，其某些步骤可以采用其他顺序或者同时进行。其次，本领域技术人员也应该知悉，说明书中描述的实施例均属于优选实施例，所涉及的动作并不一定是本公开所必须的。
本公开的说明书和权利要求书及上述附图中的术语“第一”、“第二”等是用于区别不同对象，而不是用于描述特定顺序。此外，术语“包括”和“具有”以及它们任何变形，意图在于覆盖不排他的包含。例如包含了一系列步骤的过程、方法、系统、产品或设备没有限定于已列出的步骤，而是可选地还包括没有列出的步骤，或可选地还包括对于这些过程、方法、产品或设备固有的其他步骤。
在本文中提及“实施例”意味着，结合实施例描述的特定特征、结构或特性可以包含在本公开的至少一个实施例中。在说明书中的各个位置出现该短语并不一定均是指相同的实施例，也不是与其它实施例互斥的独立的或备选的实施例。本领域技术人员显式地和隐式地理解的是，本文所描述的实施例可以与其它实施例相结合。
尽管在此结合各实施例对本公开进行了描述，然而，在实施所要保护的本公开过程中，本领域技术人员通过查看附图、公开内容、以及所附权利要求书，可理解并实现所公开实施例的其他变化。在权利要求书中，“包括”(comprising)一词不排除其他组成部分或步骤，“一”或“一个”不排除多个的情况。相互不同的从属权利要求中记载了某些措施，但这并不标识这些措施不能组合起来产生良好的效果。
本领域技术人员可以理解上述任一种电池温度控制方法的方法实施例的各种方法中的全部或部分步骤可以是通过程序来指令相关硬件来完成，该程序可以存储于计算机可读存储器中，存储器可以包括：闪存盘、只读存储器(英文：Read-Only Memory，简称：ROM)、随机存储器(英文：Random Access Memory，简称：RAM)、磁盘或光盘等。
以上对本公开一些实施例进行了详细介绍，本文中应用了个例对本公开一种电池温度控制方法、装置、计算机可读存储介质及车辆的原理及实施方式进行了阐述，以上实施例的说明指示用于帮助理解本公开的方法及核心思想；同时，对于本领域的一般技术人员，依据本公开一种电池温度控制方法、装置、计算机可读存储介质及车辆的思想，在具体实施方式及应用范围上均会有改变之处，综上所述，本说明书内容不应理解为对本公开的限制。
本领域技术人员应该可以意识到，在上述一个或多个示例中，本公开所描述的功能可以用硬件、软件、固件或它们的任意组合来实现。当时用软件实现时，可以将这些功能存储在计算机可读介质中或者作为计算机可读介质上的一个或者多个指令或代码进行传输。计算机可读介质包括计算机存储介质和通信介质，其中通信介质包括便于从一个地方向另一个地方传送计算机程序的任何介质。存储介质可以是通用或专用计算机能够存取的任何可用介质。
以上所述的具体实施方式，对本公开的目的、技术方案和有益效果进行了进一步详细说明，所应理解的是，以上所述仅为本公开的具体实施方式而已，并不用于限定本公开的保护范围，凡在本公开的技术方案的基础之上，所做的任何修改、等同替换、改进等，均应包括在本公开的保护范围之内。

Claims (18)

  1. 一种电池温度控制方法，包括：
    获取车辆的电池温度；
    根据所述电池温度和所述车辆的关联特征信息，确定是否对所述电池加热或冷却。
  2. 根据权利要求1所述的方法，其中，所述车辆的关联特征信息包括以下至少一项：所述车辆的导航信息、所述车辆的车速、所述车辆的放电功率、所述电池的充电功率、所述车辆所处的环境温度、所述电池的荷电状态(SOC)。
  3. 根据权利要求1或2所述的方法，其中，所述根据所述电池温度和所述车辆的关联特征信息，确定是否对所述电池加热或冷却，包括：
    若所述电池温度小于第一阈值，且所述车辆的关联特征信息满足第一条件时，确定对所述电池进行加热。
  4. 根据权利要求3所述的方法，其中，所述关联特征信息包括所述车辆的导航信息；
    所述第一条件包括：所述导航信息指示所述车辆将进入高速路段。
  5. 根据权利要求1或2所述的方法，其中，所述根据所述电池温度和所述车辆的关联特征信息，确定是否对所述电池加热或冷却，包括：
    若所述电池温度小于第一阈值，且所述车辆的关联特征信息满足第二条件时，确定不对所述电池进行加热。
  6. 根据权利要求5所述的方法，其中，所述关联特征信息包括所述车辆的车速；
    所述第二条件包括：所述车辆的车速小于第四阈值。
  7. 根据权利要求5所述的方法，其中，所述关联特征信息包括所述车辆的导航信息；
    所述第二条件包括：车辆的至少一个行驶参数中的各个行驶参数分别满足对应的行驶参数条件；
    其中，所述行驶参数由所述导航信息确定。
  8. 根据权利要求7所述的方法，其中，所述行驶参数包括以下至少一项：所述车辆从起点到终点的预测行驶时间、所述车辆的预测行驶车速、所述车辆从起点到终点行驶的预测行驶距离、所述车辆到达终点时的预测SOC；
    所述预测行驶时间对应的行驶参数条件为：所述预测行驶时间小于第五阈值；
    所述预测行驶车速对应的行驶参数条件为：所述预测行驶车速小于第六阈值；
    所述预测行驶距离对应的行驶参数条件为：所述预测行驶距离小于第七阈值；
    所述预测SOC对应的行驶参数条件为：所述预测SOC大于第八阈值。
  9. 根据权利要求5所述的方法，其中，所述关联特征信息包括所述车辆的车速或所述车辆的放电功率中的至少之一：
    所述第二条件包括以下至少之一：所述车速为0，或，所述车辆的放电功率小于第九阈值。
  10. 根据权利要求1或2所述的方法，其中，所述根据所述电池温度和所述车辆的关联特征信息，确定是否对所述电池加热或冷却，还包括：
    若所述电池温度大于第二阈值，且所述车辆的关联特征信息满足第三条件时，确定不对所述电池进行冷却。
  11. 根据权利要求10所述的方法，其中，所述关联特征信息包括所述车辆所处环境温度和所述车辆的车速；
    所述第三条件包括：所述车辆所处环境温度小于第十阈值，所述车辆的车速小于第十一阈值。
  12. 根据权利要求10所述的方法，其中，所述关联特征信息包括所述电池的充电功率或所述车辆所处环境温度中的至少之一；
    所述第三条件包括以下至少之一：所述电池充电时，所述充电功率小于第十二阈值，或，所述车辆所处环境温度小于第十三阈值。
  13. 根据权利要求10所述的方法，其中，所述关联特征信息包括所述电池的SOC、所述车辆所处环境温度、所述车辆的车速；
    所述第三条件包括：在所述电池充电完成时，所述电池的SOC大于第十四阈值，所述车辆所处环境温度小于第十五阈值，所述车辆的车速等于0。
  14. 根据权利要求1至13中任一项所述的方法，其中，在根据所述车辆的关联特征信息确定是否对所述电池进行加热之前，所述方法还包括：
    确定所述电池的SOC小于第三阈值。
  15. 一种电池温度控制装置，包括：
    获取单元，被配置为获取车辆的电池温度；以及
    确定单元，被配置为根据所述电池温度和所述车辆的关联特征信息，确定是否对所述电池加热或冷却。
  16. 一种电池温度控制装置，包括存储器和处理器，所述存储器存储有计算机程序，所述处理器执行所述计算机程序时实现根据权利要求1至14中任一项所述的方法的步骤。
  17. 一种计算机可读存储介质，用于存储计算机程序，所述计算机程序被处理器执行时实现根据权利要求1至14中任一项所述的方法的步骤。
  18. 一种车辆，包含根据权利要求15或16所述的电池温度控制装置。
PCT/CN2025/095355 2024-05-31 2025-05-16 电池温度控制方法、装置、计算机可读存储介质及车辆 Pending WO2025246972A1 (zh)

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