Method and device for determining thermal management of power battery and electronic equipment

Abstract

The invention discloses a power battery thermal management determination method and device and electronic equipment, and the method comprises the steps: determining a target destination of a target vehicle based on the historical vehicle use time and historical destination of the target vehicle and a preset route driving time threshold value; based on the vehicle speed of the target vehicle, the historical driving time of the target vehicle reaching the target destination and the current driving time of the target vehicle, determining the remaining distance from the target vehicle to the target destination; based on the residual distance and the temperature change value of the target power battery under the unit driving distance, determining a target temperature change value of the target vehicle under the residual distance; and whether the target power battery needs to be cooled or not is determined based on the target temperature change value, the temperature value of the target power battery in the current state and a preset limiting temperature threshold value. By shortening the cooling time of the compressor on the target power battery, the whole vehicle energy consumption of the target vehicle is improved.

Description

Technical Field

[0001] The present application relates to the technical field of power batteries, and in particular to a method, device and electronic equipment for determining thermal management of a power battery. Background Art

[0002] At present, with the development of society and the advancement of science and technology, more and more users are beginning to use new energy vehicles for travel. As the main power of new energy vehicles, power batteries play an important role in the driving process of the vehicle. Therefore, the thermal management of power batteries is the key to ensuring safe and stable driving of the vehicle.

[0003] However, traditional battery thermal management methods are usually determined based on the real-time monitored battery current. Specifically, when the current temperature brought by the current in the battery exceeds the battery temperature and the current temperature is less than the threshold temperature, the battery cooling system is activated to cool the battery. However, this battery thermal management method based on current prediction of battery temperature cannot reduce the overall vehicle energy consumption of the battery, resulting in a waste of resources. Therefore, the overall vehicle energy consumption of the battery is a problem that needs to be urgently solved in this field. Summary of the invention

[0004] The embodiments of the present application provide a method, device and electronic device for determining thermal management of a power battery. The embodiments provided by the present application solve the technical problem of high energy consumption in thermal management of batteries in the prior art. The embodiments provided by the present application improve the overall energy consumption of the target vehicle by shortening the cooling time of the compressor for the target power battery.

[0005] In a first aspect of an embodiment of the present application, an embodiment of the present application provides a method for determining thermal management of a power battery, the method for determining thermal management of a power battery comprising: When the target vehicle does not start vehicle navigation, determining the target destination of the target vehicle based on the historical vehicle usage time, historical destinations and a threshold of the number of times the preset route is traveled; Determining a remaining distance between the target vehicle and the target destination based on the speed of the target vehicle, the historical driving time of the target vehicle to reach the target destination, and the current driving time of the target vehicle; Determine a target temperature change value of the target vehicle at the remaining distance based on the remaining distance and the temperature change value of the target power battery at the unit driving distance, wherein the temperature change value is used to represent an average value of the temperature change at the unit driving distance; Based on the target temperature change value, the temperature value of the target power battery in the current state and a preset limit temperature threshold, it is determined whether the target power battery needs to be cooled to achieve thermal management of the target power battery.

[0006] In a feasible implementation manner, when the target vehicle does not turn on vehicle navigation, determining the target destination of the target vehicle based on the historical vehicle usage time, historical destinations, and a preset route travel number threshold of the target vehicle includes: When the target vehicle does not turn on vehicle navigation, determine whether the historical vehicle usage time of the target vehicle is within the preset vehicle usage time period; if the historical vehicle usage time of the target vehicle is within the preset vehicle usage time period, determine the target destination of the target vehicle based on the number of times the target vehicle has traveled to the historical destination and the preset route travel number threshold.

[0007] In a feasible implementation manner, if the historical vehicle usage time of the target vehicle is within a preset vehicle usage time period, determining the target destination of the target vehicle based on the number of times the target vehicle travels to the historical destination and a preset route travel number threshold comprises: If the target vehicle's historical vehicle usage time is within the preset vehicle usage time period, then determine whether the target vehicle's actual number of trips to the historical destination is greater than or equal to the preset route trip number threshold; If the actual number of times of driving is greater than or equal to a preset route driving number threshold, the historical destination is determined as the target destination of the target vehicle.

[0008] In a feasible implementation manner, determining the remaining distance of the target vehicle from the target destination based on the speed of the target vehicle, the historical driving time of the target vehicle to reach the target destination, and the current driving time of the target vehicle includes: Determining a total distance for the target vehicle to reach the target destination based on the speed of the target vehicle and the historical driving time for the target vehicle to reach the target destination; Determine the travel distance of the target vehicle in the current state based on the speed of the target vehicle and the current travel time of the target vehicle; The remaining distance of the target vehicle from the target destination is determined based on the total distance and the travel distance.

[0009] In a feasible implementation manner, determining the target temperature change value of the target vehicle at the remaining distance based on the remaining distance and the temperature change value of the target power battery at the unit driving distance includes: The target temperature change value of the target vehicle at the remaining distance is determined according to the remaining distance, the temperature change value of the target power battery at the unit driving distance, the external ambient temperature, the driving mode of the target vehicle and the driving habits of the driver.

[0010] In a feasible implementation manner, the determining whether the target power battery needs to be cooled based on the target temperature change value, the temperature value of the target power battery in the current state, and the preset limit temperature threshold includes: determining the target temperature of the target power battery when it arrives at the target destination according to the target temperature change value and the temperature value of the target power battery in the current state; If the target temperature is greater than a preset limit temperature threshold, determining that the target power battery needs to be cooled; If the target temperature is less than or equal to a preset limit temperature threshold, it is determined that the target power battery does not need to be cooled.

[0011] In a feasible implementation manner, when the target vehicle does not start vehicle navigation, after determining the target destination of the target vehicle based on the historical vehicle usage time, historical destinations, and a threshold of the number of travel times of a preset route of the target vehicle, the method for determining thermal management of a power battery further includes: When the target vehicle starts vehicle navigation, the remaining distance between the target vehicle and the target destination is determined according to the navigation in the current state.

[0012] According to a second aspect of the embodiments of the present application, an apparatus for determining thermal management of a power battery is provided. The apparatus for determining thermal management of a power battery comprises: A first determination module is used to determine a target destination of the target vehicle based on a historical vehicle usage time, a historical destination, and a preset route travel number threshold when the target vehicle does not turn on vehicle navigation; A second determination module is used to determine the remaining distance of the target vehicle from the target destination based on the speed of the target vehicle, the historical driving time of the target vehicle to reach the target destination, and the current driving time of the target vehicle; A third determination module is used to determine a target temperature change value of the target vehicle at the remaining distance based on the remaining distance and the temperature change value of the target power battery at the unit driving distance, wherein the temperature change value is used to represent an average value of the temperature change at the unit driving distance; The fourth determination module is used to determine whether the target power battery needs to be cooled based on the target temperature change value, the temperature value of the target power battery in the current state and a preset limit temperature threshold to achieve thermal management of the target power battery.

[0013] According to a third aspect of the embodiments of the present application, an electronic device is provided, comprising: a processor, a memory and a bus, wherein the memory stores machine-readable instructions executable by the processor, and when the electronic device is running, the processor communicates with the memory through the bus, and the machine-readable instructions are executed by the processor to perform the steps of the method for determining thermal management of a power battery as described above.

[0014] According to a fourth aspect of the embodiments of the present application, a computer-readable storage medium is provided, on which a computer program is stored. When the computer program is executed by a processor, the steps of the method for determining thermal management of a power battery as described above are executed.

[0015] The method, device and electronic device for determining thermal management of a power battery provided in the embodiments of the present application, compared with the prior art, determine the target destination of the target vehicle based on the historical vehicle usage time, historical destinations and a preset route travel number threshold of the target vehicle when the vehicle navigation is not turned on for the target vehicle, and then determine the remaining distance of the target vehicle from the target destination based on the speed of the target vehicle, the historical driving time of the target vehicle to reach the target destination and the current driving time of the target vehicle, and then determine the target temperature change value of the target vehicle at the remaining distance based on the remaining distance and the temperature change value of the target power battery per unit driving distance, and finally determine whether the target power battery needs to be cooled based on the target temperature change value, the temperature value of the target power battery in the current state and the preset limit temperature threshold to achieve thermal management of the target power battery. The embodiments provided in the present application improve the overall energy consumption of the target vehicle by shortening the cooling time of the compressor for the target power battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 One of the flow charts of a method for determining thermal management of a power battery provided in an embodiment of the present application is shown; Figure 2 A second flowchart of a method for determining thermal management of a power battery provided in an embodiment of the present application is shown; Figure 3 A structural block diagram of a device for determining thermal management of a power battery provided in an embodiment of the present application is shown; Figure 4 A schematic structural diagram of an electronic device provided in an embodiment of the present application is shown.

[0017] Figure 3 and Figure 4 The corresponding relationship between the reference numerals and the names of the drawings is as follows: 300 Determination device for thermal management of power battery; 310 First determination module; 320 Second determination module; 330 Third determination module; 340 Fourth determination module; 350 Fifth determination module; 400 Electronic device; 410 Processor; 420 Memory; 430 Bus. DETAILED DESCRIPTION

[0018] In order to better understand the technical solutions provided by the embodiments of this specification, the technical solutions of the embodiments of this specification are described in detail below through the accompanying drawings and specific embodiments. It should be understood that the embodiments of this specification and the specific features in the embodiments are detailed descriptions of the technical solutions of the embodiments of this specification, rather than limitations on the technical solutions of this specification. In the absence of conflict, the embodiments of this specification and the technical features in the embodiments can be combined with each other.

[0019] In this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or equipment. In the absence of more restrictions, the elements limited by the statement "comprise one..." do not exclude the existence of other identical elements in the process, method, article or equipment including the elements. The term "more than two" includes two or more than two situations.

[0020] First, the applicable application scenarios of the present application are introduced. The embodiments provided in the present application are applicable to the field of power battery technology.

[0021] At present, with the development of society and the advancement of science and technology, more and more users are beginning to use new energy vehicles for travel. As the main power of new energy vehicles, power batteries play an important role in the driving process of the vehicle. Therefore, the thermal management of power batteries is the key to ensuring safe and stable driving of the vehicle.

[0022] However, traditional battery thermal management methods are usually determined based on the real-time monitored battery current. Specifically, when the current temperature brought by the current in the battery exceeds the battery temperature and the current temperature is less than the threshold temperature, the battery cooling system is activated to cool the battery. However, this battery thermal management method based on current prediction of battery temperature cannot reduce the overall vehicle energy consumption of the battery, resulting in a waste of resources. Therefore, the overall vehicle energy consumption of the battery is a problem that needs to be urgently solved in this field.

[0023] Based on this, the embodiments of the present application provide a method, device and electronic device for determining the thermal management of a power battery. The embodiments provided by the present application solve the technical problem of high energy consumption in thermal management of batteries in the prior art. The embodiments provided by the present application improve the overall energy consumption of the target vehicle by shortening the cooling time of the compressor for the target power battery.

[0024] See also Figure 1 , Figure 1 One of the flow charts of a method for determining thermal management of a power battery provided in an embodiment of the present application is as follows: Figure 1 As shown, the method for determining the thermal management of the power battery includes the following steps: S101. When the target vehicle does not start vehicle navigation, determine the target destination of the target vehicle based on the target vehicle's historical vehicle usage time, historical destinations, and a preset route travel times threshold.

[0025] In this step, while the target vehicle is driving, the driver can automatically choose to turn on the vehicle navigation or not. Generally, the driver will choose to turn on the vehicle navigation directly, but in special circumstances or in some extreme environments (such as areas with poor signals), the target vehicle will be forced to turn off the vehicle navigation. At this time, if you want to determine the remaining distance of the target vehicle from the previous position to the target destination, it is obviously only possible to rely on the previous historical driving information of the target vehicle and the currently known information of the target vehicle. Specifically, the embodiment provided in the present application determines the target destination of the target vehicle according to the historical vehicle usage time of the target vehicle (such as [6:00-9:00], [18:00-21:00], etc.), the historical destinations that the target vehicle has previously driven to, the number of times the target vehicle has driven to each historical destination, and the preset route driving number threshold.

[0026] It can be understood that the target destination in the embodiment provided by the present application is to compare the number of trips to each historical destination with the preset route trip number threshold. When it is determined that the number of trips to a historical destination is greater than the preset route trip number threshold and the number of trips to the historical destination is the largest, the historical destination is determined as the target destination of the target vehicle.

[0027] Among them, the historical vehicle usage time (such as [6:00-9:00], [18:00-21:00], etc.) in the embodiments provided in this application is determined according to the driver's driving habits and can be customized and replaced according to different usage scenarios.

[0028] In the above, the purpose of determining the magnitude relationship between the number of times the historical destination is traveled and the threshold number of times the preset route is traveled is to determine the working condition of the target vehicle, such as the commuting condition.

[0029] Among them, the target vehicle in the embodiments provided in the present application is used to characterize the vehicle being used by the driver in the current situation; the historical vehicle usage time is used to characterize the driving time nodes of the target vehicle in many historical trips; the historical destination is used to characterize the terminal location reached by the target vehicle in each historical trip; the preset route travel time threshold is used to characterize the preset target vehicle travel time threshold on the same route.

[0030] S102: Determine a remaining distance between the target vehicle and the target destination based on the speed of the target vehicle, the historical driving time of the target vehicle to reach the target destination, and the current driving time of the target vehicle.

[0031] In this step, after determining the target destination of the target vehicle, the embodiment provided in the present application needs to integrate the historical driving time from the target vehicle to the target destination according to the speed of the target vehicle to determine the total distance the target vehicle has to reach the target destination, and then integrate the current driving time of the target vehicle according to the speed of the target vehicle to determine the driving distance of the target vehicle in the current state, and then determine the remaining distance of the target vehicle from the target destination based on the total distance and the driving distance.

[0032] The historical driving time is used to represent the time taken by the target vehicle to reach the target destination in the historical trip; the current driving time is used to represent the time taken by the target vehicle in the current trip.

[0033] S103. Determine a target temperature change value of the target vehicle at the remaining distance based on the remaining distance and the temperature change value of the target power battery at the unit driving distance, wherein the temperature change value is an average value of the temperature change at the unit driving distance.

[0034] In this step, the target temperature change value of the target vehicle at the remaining distance is calculated based on the remaining distance and the temperature change value of the target power battery at the unit driving distance without thermal management.

[0035] It can be understood that the temperature change value of the target power battery per unit driving distance in the embodiment provided in the present application can be specifically but not limited to: the average battery temperature rise change value per kilometer without thermal management.

[0036] S104 . Determine whether the target power battery needs to be cooled based on the target temperature change value, the temperature value of the target power battery in the current state, and the preset limit temperature threshold, so as to achieve thermal management of the target power battery.

[0037] In this step, after determining the target temperature change value in this embodiment, the sum of the target temperature change value and the temperature value of the target power battery in the current state is determined as the target temperature when the target power battery reaches the target destination, and then the target temperature is compared with the preset limit temperature threshold, and based on the comparison result, it is determined whether the target power battery needs to be cooled.

[0038] It can be understood that the embodiments provided in the present application are specific but not limited to cooling the target power battery by compressor refrigeration to achieve thermal management of the target power battery.

[0039] Among them, the preset extreme temperature threshold in the embodiment provided in the present application is used to characterize the critical temperature value at which the target vehicle is about to enter thermal runaway under extreme operating conditions.

[0040] The method for determining thermal management of a power battery provided in an embodiment of the present application, compared with the prior art, determines the target destination of the target vehicle based on the historical vehicle usage time, historical destinations and a preset route travel number threshold of the target vehicle when the vehicle navigation is not turned on for the target vehicle, and then determines the remaining distance of the target vehicle from the target destination based on the speed of the target vehicle, the historical driving time of the target vehicle to reach the target destination and the current driving time of the target vehicle, and then determines the target temperature change value of the target vehicle at the remaining distance based on the remaining distance and the temperature change value of the target power battery per unit driving distance, and finally determines whether the target power battery needs to be cooled based on the target temperature change value, the temperature value of the target power battery in the current state and the preset limit temperature threshold to achieve thermal management of the target power battery. The embodiment provided in the present application improves the overall energy consumption of the target vehicle by shortening the cooling time of the compressor for the target power battery.

[0041] In one embodiment, step S101 includes the following sub-steps: Sub-step 1011: when the target vehicle does not have vehicle navigation turned on, determine whether the historical vehicle usage time of the target vehicle is within a preset vehicle usage time period.

[0042] In this step, it is assumed that the embodiment provided in the present application specifically needs to determine whether the historical vehicle usage time of the target vehicle is within the preset vehicle usage time period of [6:00-9:00], [18:00-21:00].

[0043] Sub-step 1012: If the historical vehicle usage time of the target vehicle is within the preset vehicle usage time period, the target destination of the target vehicle is determined based on the number of times the target vehicle has traveled to the historical destination and the preset route travel number threshold.

[0044] In this step, if the historical vehicle usage time is within the preset vehicle usage time period, it is determined whether the actual number of times the target vehicle travels to the historical destination is greater than or equal to the preset route travel number threshold; if the actual number of times is greater than or equal to the preset route travel number threshold, the historical destination is determined to be the target destination of the target vehicle.

[0045] It is assumed that the preset route travel times threshold in the embodiment provided in the present application can be specifically but not limited to 18.

[0046] In one embodiment, step S102 includes the following sub-steps: Sub-step 1021: Determine the total distance the target vehicle travels to the target destination based on the speed of the target vehicle and the historical driving time of the target vehicle to the target destination.

[0047] In this step, the total distance S of the target vehicle to the target destination can be calculated by integrating the speed of the target vehicle and the historical driving time of the target vehicle to the target destination.

[0048] Sub-step 1022: Determine the travel distance of the target vehicle in the current state based on the speed of the target vehicle and the current travel time of the target vehicle.

[0049] In this step, the travel distance S1 of the target vehicle in the current state can be calculated by integrating the speed of the target vehicle and the current travel time of the target vehicle.

[0050] Sub-step 1023: Determine the remaining distance of the target vehicle from the target destination according to the total distance and the driving distance.

[0051] In this step, the total distance is subtracted from the travel distance to calculate the remaining distance of the target vehicle from the target destination.

[0052] It is assumed that the remaining distance in the embodiment provided in the present application can be specifically represented by S2, and then S2=S-S1.

[0053] In one embodiment, based on the remaining distance and the temperature change value of the target power battery per unit driving distance, determining the target temperature change value of the target vehicle at the remaining distance includes: The target temperature change value of the target vehicle at the remaining distance is determined according to the remaining distance, the temperature change value of the target power battery at the unit driving distance, the external ambient temperature, the driving mode of the target vehicle and the driving habits of the driver.

[0054] In the above, the embodiment provided by the present application can determine the external environment temperature correction coefficient according to the external environment temperature, and can also determine different driver correction coefficients according to the driving habits of the driver, and determine the driving mode correction coefficient according to the driving mode of the target vehicle. At this time, the target temperature change value of the target vehicle at the remaining distance can be specifically: △T = average value of temperature change of target power battery per unit driving distance without thermal management × remaining distance S2 × driver correction factor × driving mode correction factor × external ambient temperature correction factor; Among them, △T is used to characterize the target temperature change value of the target vehicle under the remaining distance; and the average value of the temperature change value of the target power battery under unit driving distance without thermal management is the average value of the battery temperature rise of the target vehicle before without thermal management.

[0055] Here, the driving mode is used to characterize the driving method of the vehicle by switching between multiple modes; the driving habit is used to characterize the state parameters, driving parameters and own ID attribute parameters of different drivers during the driving process.

[0056] In one embodiment, step S104 includes the following sub-steps: Sub-step 1041 : determining a target temperature of the target power battery when it reaches the target destination according to the target temperature change value and the temperature value of the target power battery in the current state.

[0057] In this step, it is assumed that the temperature value of the target power battery in the current state is specifically T. At this time, the target temperature TT of the target power battery when it reaches the target destination is equal to the sum of the target temperature change value ΔT and the temperature value T.

[0058] Sub-step 1042: If the target temperature is greater than the preset limit temperature threshold, it is determined that the target power battery needs to be cooled.

[0059] In this step, it is assumed that the preset limit temperature threshold can be specifically represented by Tmax, and it is assumed that T+ΔT>Tmax. At this time, it is determined that the target power battery needs to be cooled.

[0060] Sub-step 1043: If the target temperature is less than or equal to the preset limit temperature threshold, it is determined that the target power battery does not need to be cooled.

[0061] In this step, if T+△T≤Tmax, it is determined that the target power battery does not need to be cooled. For example, originally when the current temperature of the target power battery is ≥40°C, the compressor refrigeration system is controlled to perform thermal management on the target power battery. After applying the embodiment provided by the present application, the target temperature does not exceed Tmax45°C, and the target power battery does not need to be cooled. That is, when the temperature value in the current state is ≥40°C, the target power battery also needs to be cooled.

[0062] The method for determining thermal management of a power battery provided in an embodiment of the present application, compared with the prior art, is that when the vehicle navigation is not turned on for the target vehicle, the embodiment provided by the present application determines the target destination of the target vehicle based on the historical vehicle usage time, historical destinations and a preset route travel number threshold of the target vehicle, and then determines the remaining distance of the target vehicle from the target destination based on the speed of the target vehicle, the historical driving time of the target vehicle to reach the target destination and the current driving time of the target vehicle, and then determines the target temperature change value of the target vehicle under the remaining distance based on the remaining distance and the temperature change value of the target power battery under the unit driving distance, and finally determines whether the target power battery needs to be cooled based on the target temperature change value, the temperature value of the target power battery in the current state and the preset limit temperature threshold, so as to achieve thermal management of the target power battery. The embodiment provided by the present application improves the energy consumption of the target vehicle by shortening the cooling time of the compressor for the target power battery, that is, when the navigation is not turned on for the target vehicle, the present application determines the target temperature change value according to the remaining distance to the target destination, the driver correction factor, the driving mode correction factor and the external environment temperature correction factor, so as to achieve early closure of the battery thermal management when the target temperature change value of the remaining distance meets the threshold condition.

[0063] See also Figure 2 , Figure 2 The second flowchart of a method for determining thermal management of a power battery provided in an embodiment of the present application is as follows: Figure 2 As shown, the determination method of power battery thermal management includes: S201. When the target vehicle does not turn on vehicle navigation, determine the target destination of the target vehicle based on the target vehicle's historical vehicle usage time, historical destinations, and a preset route travel times threshold.

[0064] S202: When the target vehicle starts vehicle navigation, determine the remaining distance between the target vehicle and the target destination according to the navigation in the current state.

[0065] In this step, when the target vehicle starts vehicle navigation, the remaining distance between the target vehicle and the target destination can be determined directly based on the navigation in the current state.

[0066] S203: Determine the remaining distance between the target vehicle and the target destination based on the speed of the target vehicle, the historical driving time of the target vehicle to reach the target destination, and the current driving time of the target vehicle.

[0067] S204. Determine a target temperature change value of the target vehicle at the remaining distance based on the remaining distance and the temperature change value of the target power battery at the unit driving distance, wherein the temperature change value is used to represent an average value of the temperature change at the unit driving distance.

[0068] S205 . Determine whether the target power battery needs to be cooled based on the target temperature change value, the temperature value of the target power battery in the current state, and the preset limit temperature threshold, so as to achieve thermal management of the target power battery.

[0069] The method for determining thermal management of a power battery provided in an embodiment of the present application, compared with the prior art, is that when the vehicle navigation is not turned on for the target vehicle, the embodiment provided by the present application determines the target destination of the target vehicle based on the historical vehicle usage time, historical destinations and a preset route travel number threshold of the target vehicle, and then determines the remaining distance of the target vehicle from the target destination based on the speed of the target vehicle, the historical driving time of the target vehicle to reach the target destination and the current driving time of the target vehicle, and then determines the target temperature change value of the target vehicle under the remaining distance based on the remaining distance and the temperature change value of the target power battery under the unit driving distance, and finally determines whether the target power battery needs to be cooled based on the target temperature change value, the temperature value of the target power battery in the current state and the preset limit temperature threshold, so as to achieve thermal management of the target power battery. The embodiment provided by the present application improves the energy consumption of the target vehicle by shortening the cooling time of the compressor for the target power battery, that is, when the navigation is not turned on for the target vehicle, the present application determines the target temperature change value according to the remaining distance to the target destination, the driver correction factor, the driving mode correction factor and the external environment temperature correction factor, so as to achieve early closure of the battery thermal management when the target temperature change value of the remaining distance meets the threshold condition.

[0070] See also Figure 3 , Figure 3 A flowchart of a method for determining a vehicle fault provided in an embodiment of the present application is shown in FIG. Figure 3 As shown, the power battery thermal management determination device 300 includes: The first determination module 310 is used to determine the target destination of the target vehicle based on the historical vehicle usage time, historical destinations and a preset route travel number threshold of the target vehicle when the vehicle navigation is not turned on for the target vehicle.

[0071] The second determination module 320 is used to determine the remaining distance between the target vehicle and the target destination according to the navigation in the current state when the target vehicle starts the vehicle navigation.

[0072] The third determination module 330 is used to determine the remaining distance between the target vehicle and the target destination based on the speed of the target vehicle, the historical driving time of the target vehicle to reach the target destination, and the current driving time of the target vehicle.

[0073] The fourth determination module 340 is used to determine the target temperature change value of the target vehicle at the remaining distance based on the remaining distance and the temperature change value of the target power battery at the unit driving distance, wherein the temperature change value is used to represent the average value of the temperature change at the unit driving distance.

[0074] The fifth determination module 350 is used to determine whether the target power battery needs to be cooled based on the target temperature change value, the temperature value of the target power battery in the current state and the preset limit temperature threshold to achieve thermal management of the target power battery.

[0075] In one embodiment, the first determining module 310 is specifically configured to: When the vehicle navigation is not turned on for the target vehicle, it is determined whether the historical vehicle usage time of the target vehicle is within a preset vehicle usage time period.

[0076] If the historical vehicle usage time of the target vehicle is within the preset vehicle usage time period, the target destination of the target vehicle is determined based on the number of times the target vehicle has traveled to the historical destination and a preset route travel number threshold.

[0077] In one embodiment, if the historical vehicle usage time of the target vehicle is within a preset vehicle usage time period, the target destination of the target vehicle is determined based on the number of times the target vehicle has traveled to the historical destination and a preset route travel number threshold, including: if the historical vehicle usage time of the target vehicle is within the preset vehicle usage time period, then determining whether the actual number of times the target vehicle has traveled to the historical destination is greater than or equal to the preset route travel number threshold.

[0078] If the actual number of trips is greater than or equal to a preset route trip number threshold, the historical destination is determined as the target destination of the target vehicle.

[0079] In one embodiment, the third determination module 330 is specifically configured to: Based on the speed of the target vehicle and the historical driving time of the target vehicle to reach the target destination, the total distance of the target vehicle to reach the target destination is determined.

[0080] Based on the speed of the target vehicle and the current driving time of the target vehicle, the driving distance of the target vehicle in the current state is determined.

[0081] Based on the total distance and the travel distance, the remaining distance of the target vehicle to the target destination is determined.

[0082] In one embodiment, the fourth determining module 340 is specifically configured to: The target temperature change value of the target vehicle at the remaining distance is determined according to the remaining distance, the temperature change value of the target power battery at the unit driving distance, the external ambient temperature, the driving mode of the target vehicle and the driving habits of the driver.

[0083] In one embodiment, the fifth determining module 350 is specifically configured to: The target temperature of the target power battery when it reaches the target destination is determined according to the target temperature change value and the temperature value of the target power battery in the current state.

[0084] If the target temperature is greater than the preset limit temperature threshold, it is determined that the target power battery needs to be cooled.

[0085] If the target temperature is less than or equal to the preset limit temperature threshold, it is determined that there is no need to cool the target power battery.

[0086] The power battery thermal management determination device 300 provided in the embodiment of the present application, compared with the prior art, the embodiment provided by the present application determines the target destination of the target vehicle based on the historical vehicle usage time, historical destination and preset route travel times threshold of the target vehicle when the vehicle navigation is not turned on for the target vehicle, and then determines the remaining distance of the target vehicle from the target destination based on the speed of the target vehicle, the historical driving time of the target vehicle to the target destination and the current driving time of the target vehicle, and then determines the target temperature change value of the target vehicle under the remaining distance based on the remaining distance and the temperature change value of the target power battery under the unit driving distance, and finally determines whether the target power battery needs to be cooled based on the target temperature change value, the temperature value of the target power battery in the current state and the preset limit temperature threshold, so as to achieve thermal management of the target power battery. The embodiment provided by the present application improves the whole vehicle energy consumption of the target vehicle by shortening the cooling time of the compressor for the target power battery, that is, the present application determines the target temperature change value according to the remaining distance to the target destination, the driver correction factor, the driving mode correction factor and the external environment temperature correction factor when the navigation is not turned on for the target vehicle, so as to achieve early shutdown of the battery thermal management when the target temperature change value of the remaining distance meets the threshold condition.

[0087] See also Figure 4 , Figure 4 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application is shown in FIG. Figure 4 As shown, the electronic device 400 includes a processor 410 , a memory 420 , and a bus 430 .

[0088] The memory 420 stores machine-readable instructions executable by the processor 410. When the electronic device 400 is running, the processor 410 communicates with the memory 420 via the bus 430. When the machine-readable instructions are executed by the processor 410, the above-mentioned Figure 1 to Figure 2 The steps of the method for determining the thermal management of the power battery in the method embodiment shown and the specific implementation thereof can be referred to the method embodiment, which will not be described in detail here.

[0089] The present application also provides a computer-readable storage medium on which a computer program is stored. When the computer program is executed by a processor, the computer program can execute the above-mentioned Figure 1 to Figure 2 The steps of the method for determining the thermal management of the power battery in the method embodiment shown and the specific implementation thereof can be referred to the method embodiment, which will not be described in detail here.

[0090] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0091] It should be noted that in the above embodiments, the description of each embodiment has its own emphasis, and for parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0092] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment in combination with software and hardware. Moreover, the present application may adopt the form of a computer program product implemented in one or more computer-readable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) that contain computer-readable program code.

[0093] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded computer, or other programmable data processing device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0094] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture including an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0095] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0096] An embodiment of the present application further provides a computer program product, which includes computer software instructions. When the computer software instructions are executed on a processing device, the processing device executes the process of a method for determining a fault identification model.

[0097] The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on the computer, the process or function according to the embodiment of the present application is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. The computer instructions can be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions can be transmitted from a website site, a computer, a server or a data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (digital subscriber line, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) mode to another website site, computer, server or data center. The computer-readable storage medium can be any available medium that a computer can store or a data storage device such as a server or a data center that includes one or more available media integration. The available medium can be a magnetic medium, (e.g., a floppy disk, a hard disk, a tape), an optical medium (e.g., a DVD), or a semiconductor medium (e.g., a solid state drive (SSD)), etc.

[0098] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0099] In the several embodiments provided in the present application, it should be understood that the disclosed devices, apparatuses and methods can be implemented in other ways. For example, the device embodiments described above are only schematic, for example, the division of units is only a logical function division, and there may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interfaces, devices or units, which can be electrical, mechanical or other forms.

[0100] 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 distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0101] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0102] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application is essentially or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions to enable a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the various embodiments of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), disk or optical disk and other media that can store program codes.

[0103] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

[0104] Although the preferred embodiments of this specification have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of this specification.

[0105] Obviously, those skilled in the art can make various changes and modifications to this specification without departing from the spirit and scope of this specification. Thus, if these modifications and variations of this specification fall within the scope of the claims of this specification and their equivalents, this specification is also intended to include these modifications and variations.

Claims

1. A method for determining thermal management of a power battery, characterized in that: The method for determining thermal management of a power battery includes: when the target vehicle does not turn on vehicle navigation, determining a target destination of the target vehicle based on a historical vehicle usage time, a historical destination, and a threshold of the number of travel times of a preset route of the target vehicle; Determining a remaining distance between the target vehicle and the target destination based on the speed of the target vehicle, the historical driving time of the target vehicle to reach the target destination, and the current driving time of the target vehicle; Determine a target temperature change value of the target vehicle at the remaining distance based on the remaining distance and the temperature change value of the target power battery at the unit driving distance, wherein the temperature change value is used to represent an average value of the temperature change at the unit driving distance; Based on the target temperature change value, the temperature value of the target power battery in the current state and a preset limit temperature threshold, it is determined whether the target power battery needs to be cooled to achieve thermal management of the target power battery.

2. The method for determining thermal management of a power battery according to claim 1, characterized in that: The method of determining the target destination of the target vehicle based on the historical vehicle usage time, historical destinations, and a threshold of the number of travel times of a preset route of the target vehicle when the target vehicle does not start vehicle navigation includes: When the target vehicle does not start vehicle navigation, determine whether the historical vehicle usage time of the target vehicle is within a preset vehicle usage time period; If the historical vehicle usage time of the target vehicle is within a preset vehicle usage time period, the target destination of the target vehicle is determined based on the number of times the target vehicle has traveled to the historical destination and a preset route travel number threshold.

3. The method for determining thermal management of a power battery according to claim 2, characterized in that: If the historical vehicle usage time of the target vehicle is within the preset vehicle usage time period, determining the target destination of the target vehicle based on the number of times the target vehicle travels to the historical destination and a preset route travel number threshold, includes: If the target vehicle's historical vehicle usage time is within the preset vehicle usage time period, then determine whether the target vehicle's actual number of trips to the historical destination is greater than or equal to the preset route trip number threshold; If the actual number of times of driving is greater than or equal to a preset route driving number threshold, the historical destination is determined as the target destination of the target vehicle.

4. The method for determining thermal management of a power battery according to claim 1, characterized in that: The determining the remaining distance of the target vehicle from the target destination based on the speed of the target vehicle, the historical driving time of the target vehicle to reach the target destination, and the current driving time of the target vehicle includes: Determining a total distance for the target vehicle to reach the target destination based on the speed of the target vehicle and the historical driving time for the target vehicle to reach the target destination; Determine the travel distance of the target vehicle in the current state based on the speed of the target vehicle and the current travel time of the target vehicle; The remaining distance of the target vehicle from the target destination is determined based on the total distance and the travel distance.

5. The method for determining thermal management of a power battery according to claim 1, characterized in that: The determining, based on the remaining distance and the temperature change value of the target power battery under the unit driving distance, a target temperature change value of the target vehicle under the remaining distance includes: The target temperature change value of the target vehicle at the remaining distance is determined according to the remaining distance, the temperature change value of the target power battery at the unit driving distance, the external ambient temperature, the driving mode of the target vehicle and the driving habits of the driver.

6. The method for determining thermal management of a power battery according to claim 1, characterized in that: The determining whether the target power battery needs to be cooled based on the target temperature change value, the temperature value of the target power battery in the current state, and a preset limit temperature threshold value includes: Determining a target temperature of the target power battery when it reaches the target destination according to the target temperature change value and the temperature value of the target power battery in the current state; If the target temperature is greater than a preset limit temperature threshold, determining that the target power battery needs to be cooled; If the target temperature is less than or equal to a preset limit temperature threshold, it is determined that the target power battery does not need to be cooled.

7. The method for determining thermal management of a power battery according to claim 1, characterized in that: After determining the target destination of the target vehicle based on the historical vehicle usage time, historical destinations and a preset route travel number threshold of the target vehicle when the target vehicle does not turn on the vehicle navigation, the method for determining the thermal management of a power battery further includes: when the target vehicle turns on the vehicle navigation, determining the remaining distance of the target vehicle from the target destination according to the navigation in a current state.

8. A device for determining thermal management of a power battery, characterized in that: The power battery thermal management determination device comprises: a first determination module, for determining a target destination of the target vehicle based on a historical vehicle usage time, a historical destination, and a preset route travel number threshold of the target vehicle when the target vehicle does not turn on vehicle navigation; A third determination module is used to determine the remaining distance of the target vehicle from the target destination based on the speed of the target vehicle, the historical driving time of the target vehicle to reach the target destination, and the current driving time of the target vehicle; a fourth determination module, configured to determine a target temperature change value of the target vehicle at the remaining distance based on the remaining distance and a temperature change value of the target power battery at the unit driving distance, wherein the temperature change value is used to represent an average value of the temperature change at the unit driving distance; The fifth determination module is used to determine whether the target power battery needs to be cooled based on the target temperature change value, the temperature value of the target power battery in the current state and a preset limit temperature threshold, so as to achieve thermal management of the target power battery.

9. An electronic device, characterized in that: include: A processor, a memory and a bus, wherein the memory stores machine-readable instructions executable by the processor, and when the electronic device is running, the processor and the memory communicate through the bus, and the machine-readable instructions are executed by the processor to perform the steps of the method for determining thermal management of a power battery as described in any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps of the method for determining thermal management of a power battery as described in any one of claims 1 to 7 are executed.

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