Vehicle battery temperature regulation and control method and device, computer equipment and storage medium

Abstract

The invention relates to a vehicle battery temperature regulation and control method and device, computer equipment and a storage medium. The method comprises the steps that the battery temperature is regulated and controlled based on the current temperature, a preset temperature threshold value and a preset regulation and control strategy, and a temperature regulation and control result is obtained; under the condition that the temperature regulation and control result is that the battery temperature is in the temperature control area, performing comparative analysis based on the current vehicle parameters and the vehicle demand parameters to obtain a comparative analysis result; when the comparison analysis result is that the current vehicle parameter is greater than or equal to the vehicle demand parameter, determining a target demand current based on the vehicle demand parameter and a battery characteristic mapping relation; and screening the temperature control modes based on the target demand current, the battery characteristic mapping relation and a preset temperature difference threshold to obtain a target temperature control mode. By adopting the method, the battery temperature can be controlled according to different working conditions, the target current is accurately determined in combination with the battery characteristic mapping relation, the most suitable temperature control mode is screened, and it is ensured that the battery can work efficiently and safely.

Description

Technical Field

[0001] The present application relates to the field of battery management technology, and in particular to a vehicle battery temperature control method, device, computer equipment and storage medium. Background Art

[0002] With the rapid development of the electric vehicle market, the Battery Thermal Management System (BTMS) plays a vital role in improving battery performance and extending battery life. Batteries release heat during the charging and discharging process, and temperature changes directly affect the efficiency and safety of the battery. Therefore, a reasonable thermal management strategy is essential to ensure the safety and performance of electric vehicles under various operating conditions. Especially in the field of commercial vehicles, the operating environment of vehicles is complex and changeable, and batteries need to maintain good working conditions under different loads, road conditions and vehicle speeds. To achieve this goal, the battery control system (BMS) will directly start the thermal management system according to the temperature requirements of the battery to reach the preset target temperature.

[0003] In the related art, most battery thermal management systems will directly start the heating or cooling system according to the requirements of the BMS after the vehicle is powered on for detection, so as to quickly adjust the battery temperature to the target value.

[0004] However, in the related art, although the current battery thermal management system can quickly adjust the battery temperature to the target value, this simple temperature control strategy has significant disadvantages. On the one hand, when the battery continues to work, the battery will continue to release heat. If the set target temperature is reached too early through the thermal management system, this part of the heat cannot be effectively utilized, and additional energy may be required for cooling later, resulting in energy efficiency loss. On the other hand, cooling the battery to the target temperature too early will cause the water pump, air compressor and other equipment of the thermal management system to be in a high-power non-economic zone, resulting in increased energy consumption and reduced overall efficiency. In addition, the actual needs of the battery in different driving scenarios have not been fully considered, and this fixed thermal management strategy also limits the flexibility and adaptability of electric vehicles under different working conditions. Summary of the invention

[0005] Based on this, it is necessary to provide a vehicle battery temperature control method, device, computer equipment, computer-readable storage medium and computer program product that can control the battery temperature according to different operating conditions to improve the control efficiency of the battery temperature in response to the above technical problems.

[0006] In a first aspect, the present application provides a vehicle battery temperature control method. The method comprises:

[0007] Regulating the battery temperature based on the current temperature, a preset temperature threshold, and a preset regulation strategy to obtain a temperature regulation result;

[0008] When the temperature control result shows that the battery temperature is within the temperature control area, a comparative analysis is performed based on the current vehicle parameters and the vehicle demand parameters to obtain a comparative analysis result;

[0009] When the comparison and analysis result shows that the current vehicle parameter is greater than or equal to the vehicle demand parameter, the target demand current is determined based on the vehicle demand parameter and the battery characteristic mapping relationship;

[0010] The temperature control mode is screened based on the target demand current, the battery characteristic mapping relationship and the preset temperature difference threshold to obtain the target temperature control mode.

[0011] In one embodiment, the battery temperature is regulated based on the current temperature, the preset temperature threshold and the preset regulation strategy to obtain the temperature regulation result, including:

[0012] Performing a regional analysis on the current temperature according to a first temperature threshold and a second temperature threshold to obtain a first regional analysis result;

[0013] When the regional analysis result indicates that the current temperature is in the waiting operation area, performing regional analysis on the current temperature according to the third temperature threshold and the fourth temperature threshold to obtain a second regional analysis result;

[0014] If the second region analysis result is that the current temperature is in the adjustment region, generating a fast adjustment instruction and performing a fast adjustment operation on the battery based on the fast adjustment instruction;

[0015] Acquire the adjusted temperature, and perform regional analysis on the adjusted temperature according to the third temperature threshold and the fourth temperature threshold to obtain a third regional analysis result;

[0016] When the third region analysis result shows that the adjusted temperature is within the temperature control region, the adjustment operation is terminated and the third region analysis result is set as the temperature control result.

[0017] In one embodiment, after obtaining the adjusted temperature and performing regional analysis on the adjusted temperature according to the third temperature threshold and the fourth temperature threshold to obtain a third regional analysis result, the method further includes:

[0018] When the third region analysis result is that the adjusted temperature is in the adjustment region, the rapid adjustment operation is continued on the battery until the battery temperature is in the temperature control region.

[0019] In one embodiment, when the temperature control result is that the battery temperature is in the temperature control area, a comparative analysis is performed based on the current vehicle parameters and the vehicle demand parameters to obtain a comparative analysis result, including:

[0020] determining a first demand parameter based on the current operating parameter;

[0021] Determining a current parameter threshold based on the current battery parameter;

[0022] The first demand parameter is compared with the current parameter threshold to obtain a comparative analysis result.

[0023] In one embodiment, when the temperature control result is that the battery temperature is in the temperature control area, a comparative analysis is performed based on the current vehicle parameters and the vehicle demand parameters to obtain the comparative analysis result, further comprising:

[0024] Acquire next journey data and determine a second demand parameter based on the next journey data;

[0025] determining a current parameter threshold based on the current vehicle parameter;

[0026] The second demand parameter is compared with the current parameter threshold to obtain a comparative analysis result.

[0027] In one embodiment, the temperature control mode is screened based on the target demand current, the battery characteristic mapping relationship and the preset temperature difference threshold to obtain the target temperature control mode, including:

[0028] The target battery temperature is obtained by performing difference calculation based on the mapping relationship between the target demand current and the battery characteristics;

[0029] determining a current temperature difference coefficient based on a target battery temperature and a battery temperature of the vehicle;

[0030] Compare the current temperature difference coefficient with the preset temperature difference threshold to obtain a temperature difference comparison result;

[0031] The temperature control mode is screened according to the temperature difference comparison result to obtain the target temperature control mode.

[0032] In one embodiment, the temperature control mode is screened according to the temperature difference comparison result to obtain the target temperature control mode, including:

[0033] When the temperature difference comparison result shows that the current temperature difference coefficient is less than the first temperature difference threshold, the energy saving mode is set as the target temperature control mode;

[0034] When the temperature difference comparison result is that the current temperature difference coefficient is greater than or equal to the first temperature difference threshold and the current temperature difference coefficient is less than the second temperature difference threshold, the economic mode is set as the target temperature control mode;

[0035] When the temperature difference comparison result is that the current temperature difference coefficient is greater than or equal to the second temperature difference threshold, the power mode is set to the target temperature control mode.

[0036] In a second aspect, the present application also provides a vehicle battery temperature control device. The device comprises:

[0037] A temperature control module is used to control the battery temperature based on the current temperature, a preset temperature threshold and a preset control strategy to obtain a temperature control result;

[0038] A comparison analysis module, used for performing a comparison analysis based on current vehicle parameters and vehicle demand parameters to obtain a comparison analysis result when the temperature control result indicates that the battery temperature is within the temperature control area;

[0039] A parameter calculation module, used to determine a target demand current based on a mapping relationship between the vehicle demand parameter and a battery characteristic when a comparison and analysis result shows that the current vehicle parameter is greater than or equal to the vehicle demand parameter;

[0040] The mode adjustment module is used to screen the temperature control mode based on the target demand current, the battery characteristic mapping relationship and the preset temperature difference threshold to obtain the target temperature control mode.

[0041] In a third aspect, the present application further provides a computer device. The computer device includes a memory and a processor, the memory stores a computer program, and the processor implements the following steps when executing the computer program:

[0042] Regulating the battery temperature based on the current temperature, a preset temperature threshold, and a preset regulation strategy to obtain a temperature regulation result;

[0043] When the temperature control result shows that the battery temperature is within the temperature control area, a comparative analysis is performed based on the current vehicle parameters and the vehicle demand parameters to obtain a comparative analysis result;

[0044] When the comparison and analysis result shows that the current vehicle parameter is greater than or equal to the vehicle demand parameter, the target demand current is determined based on the vehicle demand parameter and the battery characteristic mapping relationship;

[0045] The temperature control mode is screened based on the target demand current, the battery characteristic mapping relationship and the preset temperature difference threshold to obtain the target temperature control mode.

[0046] In a fourth aspect, the present application further provides a computer-readable storage medium. The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the following steps are implemented:

[0047] Regulating the battery temperature based on the current temperature, a preset temperature threshold, and a preset regulation strategy to obtain a temperature regulation result;

[0048] When the temperature control result shows that the battery temperature is within the temperature control area, a comparative analysis is performed based on the current vehicle parameters and the vehicle demand parameters to obtain a comparative analysis result;

[0049] When the comparison and analysis result shows that the current vehicle parameter is greater than or equal to the vehicle demand parameter, the target demand current is determined based on the vehicle demand parameter and the battery characteristic mapping relationship;

[0050] The temperature control mode is screened based on the target demand current, the battery characteristic mapping relationship and the preset temperature difference threshold to obtain the target temperature control mode.

[0051] In a fifth aspect, the present application further provides a computer program product. The computer program product includes a computer program, and when the computer program is executed by a processor, the following steps are implemented:

[0052] Regulating the battery temperature based on the current temperature, a preset temperature threshold, and a preset regulation strategy to obtain a temperature regulation result;

[0053] When the temperature control result shows that the battery temperature is within the temperature control area, a comparative analysis is performed based on the current vehicle parameters and the vehicle demand parameters to obtain a comparative analysis result;

[0054] When the comparison and analysis result shows that the current vehicle parameter is greater than or equal to the vehicle demand parameter, the target demand current is determined based on the vehicle demand parameter and the battery characteristic mapping relationship;

[0055] The temperature control mode is screened based on the target demand current, the battery characteristic mapping relationship and the preset temperature difference threshold to obtain the target temperature control mode.

[0056] The above-mentioned vehicle battery temperature control method, device, computer equipment, storage medium and computer program product, based on real-time battery temperature monitoring and a temperature control strategy with a preset temperature threshold, can effectively ensure that the battery operates within a safe temperature range and avoid performance degradation and safety hazards caused by abnormal temperatures. When the battery temperature is in the non-adjusted area, the system further analyzes and adjusts the battery current output by comparing the vehicle parameters and the required parameters to optimize the battery output process. At the same time, combined with the battery characteristic mapping relationship, the system can accurately determine the target current and select the most suitable temperature control mode according to the preset temperature difference threshold to ensure that the battery can work efficiently and safely under different working conditions. Through this dynamic adjustment mechanism, not only the safety and reliability of the battery system are improved, but also the energy efficiency performance of the vehicle is optimized, the battery life is extended, and the overall performance is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0057] Figure 1 A schematic diagram of a process of controlling vehicle battery temperature in one embodiment;

[0058] Figure 2 A schematic diagram of temperature zone division in one embodiment;

[0059] Figure 3 A schematic diagram of a control step in an embodiment;

[0060] Figure 4 is a structural block diagram of a vehicle battery temperature control device in one embodiment;

[0061] Figure 5 FIG. 4 is a diagram showing the internal structure of a computer device in one embodiment. DETAILED DESCRIPTION

[0062] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0063] In one embodiment, Figure 1 As shown, a vehicle battery temperature control method is provided. This embodiment uses the method applied to a terminal as an example for illustration. It can be understood that the method can also be applied to a server, and can also be applied to a system including a terminal and a server, and is implemented through the interaction between the terminal and the server. In this embodiment, the method includes the following steps:

[0064] Step 102 , the battery temperature is regulated based on the current temperature, a preset temperature threshold and a preset regulation strategy to obtain a temperature regulation result.

[0065] The preset temperature thresholds include a first temperature threshold, a second temperature threshold, a third temperature threshold and a fourth temperature threshold.

[0066] Exemplarily, the battery temperature of the vehicle is pre-divided into regions by a first temperature threshold and a second temperature threshold, the battery temperature is set into a waiting area and a non-operating area, and the waiting area is set into an adjustment area and a temperature control area.

[0067] After obtaining the current temperature of the vehicle battery, determine whether the current temperature is in the waiting operation area, and select the corresponding control strategy from the preset control strategies based on different areas, such as:

[0068] When the current temperature is in the non-operation zone, there is no need to perform temperature adjustment operation on the vehicle battery;

[0069] When the current temperature is within the temperature control area, a temperature control strategy is selected from the preset control strategies, and a temperature control operation is performed on the vehicle battery based on the temperature control strategy;

[0070] When the current temperature is in the regulation area, a regulation strategy is selected from preset regulation strategies, and a rapid regulation operation is performed on the vehicle battery based on the regulation strategy.

[0071] Step 104 , when the temperature control result is that the battery temperature is in the temperature control area, a comparative analysis is performed based on the current vehicle parameters and the vehicle demand parameters to obtain a comparative analysis result.

[0072] Among them, the current vehicle parameters include current operating parameters and current battery parameters.

[0073] For example, the current maximum parameters of the vehicle battery are determined based on the current battery parameters of the vehicle, and the current maximum parameters include the maximum torque and maximum vehicle speed that the battery can provide under the current state. At the same time, based on the current operating parameter analysis, the vehicle demand parameters are determined, and the vehicle demand parameters include the torque and vehicle speed currently required by the vehicle. Then, the torque and vehicle speed currently required by the vehicle are compared and analyzed with the maximum torque and maximum vehicle speed that the battery can provide under the current state, respectively, to determine whether it is necessary to perform temperature adjustment operations on the battery. Or

[0074] Based on the current battery parameters of the vehicle, the current maximum parameters of the vehicle battery are determined, and the current maximum parameters include the maximum torque and maximum vehicle speed that the battery can provide in the current state. At the same time, the relevant data of the next trip of the vehicle is obtained, and the vehicle demand parameters are determined by analyzing the relevant data of the next trip and the current operating parameters, and the vehicle demand parameters include the torque and vehicle speed required for the vehicle to travel in the next trip. Then, the torque and vehicle speed required for the next trip are compared and analyzed with the maximum torque and maximum vehicle speed that the battery can provide in the current state, respectively, to determine whether it is necessary to perform temperature adjustment operations on the battery.

[0075] Step 106 : when the comparison and analysis result shows that the current vehicle parameter is greater than or equal to the vehicle demand parameter, determine the target demand current based on the vehicle demand parameter and the battery characteristic mapping relationship.

[0076] Exemplarily, when it is determined that the maximum torque and maximum vehicle speed that the current battery can provide can meet the needs of the vehicle, the current of the vehicle running under the vehicle demand parameters, ie, the target demand current, is determined by calculating the vehicle demand parameters.

[0077] Step 108 , screening the temperature control mode based on the target demand current, the battery characteristic mapping relationship and the preset temperature difference threshold to obtain the target temperature control mode.

[0078] Exemplarily, the temperature corresponding to the target demand current is found based on the battery characteristic mapping relationship, and the difference method is used for calculation. Then, the temperature difference value is determined in combination with the current temperature. The temperature difference value is compared with the preset temperature difference threshold, and the comparison result is used to select the appropriate temperature control mode, i.e., the target temperature control mode, from the temperature control mode.

[0079] In the above-mentioned vehicle battery temperature control method, the temperature control strategy based on real-time battery temperature monitoring and preset temperature thresholds can effectively ensure that the battery operates within a safe temperature range, avoiding performance degradation and safety hazards caused by abnormal temperatures. When the battery temperature is in the non-adjustment area, the system further analyzes and adjusts the battery current output by comparing the vehicle parameters and demand parameters to optimize the battery output process. At the same time, combined with the battery characteristic mapping relationship, the system can accurately determine the target current, and select the most suitable temperature control mode according to the preset temperature difference threshold to ensure that the battery can work efficiently and safely under different working conditions. Through this dynamic adjustment mechanism, not only the safety and reliability of the battery system are improved, but also the energy efficiency performance of the vehicle is optimized, the battery life is extended, and the overall performance is improved.

[0080] In an exemplary embodiment, Figure 3 As shown, the battery temperature is regulated based on the current temperature, the preset temperature threshold and the preset regulation strategy to obtain the temperature regulation result, including:

[0081] Step 302: Perform regional analysis on the current temperature according to the first temperature threshold and the second temperature threshold to obtain a first regional analysis result.

[0082] The preset temperature thresholds include a first temperature threshold, a second temperature threshold, a third temperature threshold and a fourth temperature threshold.

[0083] For example, the first temperature threshold and the second temperature threshold are used to divide the heating operation area and the cooling operation area respectively. The heating operation area and the cooling operation area are collectively referred to as the operation area. Figure 2 shown.

[0084] The current temperature of the vehicle battery is compared with the first temperature threshold and the second temperature threshold respectively to determine whether the current temperature of the vehicle battery is within the to-be-operated region.

[0085] When the current temperature of the vehicle battery is less than the first temperature threshold, the current temperature of the vehicle battery is in the heating operation area of ​​the operation area, and a heating operation needs to be performed on the vehicle battery.

[0086] When the current temperature of the vehicle battery is greater than the second temperature threshold, the current temperature of the vehicle battery is in the cooling operation area of ​​the operation area, and a cooling operation needs to be performed on the vehicle battery.

[0087] Step 304: When the regional analysis result shows that the current temperature is in the waiting operation area, regional analysis is performed on the current temperature according to the third temperature threshold and the fourth temperature threshold to obtain a second regional analysis result.

[0088] Exemplarily, the heating operation area is divided into a rapid heating area and a heating temperature control area by the third temperature threshold, and the cooling operation area is divided into a rapid cooling area and a cooling temperature control area by the fourth temperature threshold. The rapid cooling area and the rapid heating area are collectively referred to as the adjustment area, and the heating temperature control area and the cooling temperature control area are collectively referred to as the temperature control area.

[0089] The current temperature of the vehicle battery is compared with the third temperature threshold and the fourth temperature threshold respectively to determine whether the current temperature of the vehicle battery is in the temperature control area or the adjustment area.

[0090] Step 306: When the second region analysis result indicates that the current temperature is in the adjustment region, a fast adjustment instruction is generated and a fast adjustment operation is performed on the battery based on the fast adjustment instruction.

[0091] For example, if the current temperature of the vehicle battery is within the adjustment area, a quick adjustment instruction is generated and executed according to the specific area, specifically:

[0092] If the current temperature is within the rapid cooling area, a rapid cooling instruction is generated and the rapid cooling instruction is executed on the vehicle battery;

[0093] If the current temperature is within the rapid heating region, a rapid heating instruction is generated and the rapid heating instruction is executed on the vehicle battery.

[0094] Step 308: Acquire the adjusted temperature, and perform regional analysis on the adjusted temperature according to the third temperature threshold and the fourth temperature threshold to obtain a third regional analysis result.

[0095] Exemplarily, after the battery temperature of the vehicle battery is adjusted, the temperature of the vehicle battery at this time, ie, the adjusted temperature, is acquired.

[0096] The adjusted temperature of the vehicle battery is then compared with the third temperature threshold and the fourth temperature threshold respectively to determine whether the current temperature of the vehicle battery is in the temperature control area or the adjustment area.

[0097] Step 310, when the third area analysis result is that the adjusted temperature is in the temperature control area, the adjustment operation is ended and the third area analysis result is set as the temperature control result.

[0098] Exemplarily, if the adjusted temperature is greater than or equal to the third temperature threshold, that is, the adjusted temperature is in the heating temperature control area, the rapid heating operation is terminated.

[0099] If the adjusted temperature is less than or equal to the fourth temperature threshold, that is, the adjusted temperature is in the cooling temperature control area, the rapid cooling operation is terminated.

[0100] In addition, if the adjusted temperature is less than the third temperature threshold, that is, the adjusted temperature is still in the rapid heating region, the rapid heating operation continues until the adjusted temperature is greater than or equal to the third temperature threshold.

[0101] If the adjusted temperature is greater than the fourth temperature threshold, that is, the adjusted temperature is still in the rapid cooling region, the rapid cooling operation continues to be performed until the adjusted temperature is less than or equal to the fourth temperature threshold.

[0102] In an exemplary embodiment, when the temperature control result is that the battery temperature is in the temperature control area, a comparative analysis is performed based on the current vehicle parameters and the vehicle demand parameters to obtain a comparative analysis result, including:

[0103] Determine a first demand parameter based on current operating parameters; determine a current parameter threshold based on current battery parameters; compare the first demand parameter with the current parameter threshold to obtain a comparison analysis result.

[0104] Among them, the current vehicle parameters include current operating parameters and current battery parameters.

[0105] Exemplarily, relevant parameter data of the vehicle, namely current operating parameters and current battery parameters, are obtained, wherein the current operating parameters include but are not limited to the current vehicle load, slope, pedal opening and gear information, etc., and the current battery parameters include the available power and torque of the front battery, etc.

[0106] The required torque and required speed of the vehicle under the current condition, i.e., the first required parameters, are calculated based on the acquired current operating parameters. At the same time, the maximum torque and maximum speed allowed by the vehicle in the current gear, i.e., the current parameter threshold, are determined based on the current battery parameters.

[0107] The required torque and required vehicle speed are then compared with the maximum torque and maximum vehicle speed allowed by the vehicle in the current gear, respectively, to determine whether heating or cooling operation of the vehicle battery is required.

[0108] In an exemplary embodiment, when the temperature control result is that the battery temperature is in the temperature control area, performing a comparative analysis based on the current vehicle parameters and the vehicle demand parameters to obtain the comparative analysis result further includes:

[0109] Acquire next journey data and determine a second demand parameter based on the next journey data; determine a current parameter threshold based on current vehicle parameters; compare the second demand parameter with the current parameter threshold to obtain a comparison analysis result.

[0110] Exemplarily, relevant distance data for the next trip is obtained and calculated to obtain the required torque and required vehicle speed for the next trip, i.e., the second required parameter. At the same time, the maximum torque and maximum vehicle speed allowed by the vehicle in the current gear, i.e., the current parameter threshold, are determined based on the current battery parameters.

[0111] The required torque and required vehicle speed for the next trip are then compared with the maximum torque and maximum vehicle speed allowed by the vehicle in the current gear to determine whether heating or cooling operations are required for the vehicle battery.

[0112] In an exemplary embodiment, the temperature control mode is screened based on the target demand current, the battery characteristic mapping relationship and the preset temperature difference threshold to obtain the target temperature control mode, including:

[0113] The target battery temperature is obtained by performing a difference calculation based on the target demand current and the battery characteristic mapping relationship; the current temperature difference coefficient is determined based on the target battery temperature and the battery temperature of the vehicle; the current temperature difference coefficient is compared with the preset temperature difference threshold to obtain a temperature difference comparison result; the temperature control mode is screened according to the temperature difference comparison result to obtain the target temperature control mode.

[0114] Among them, the preset temperature difference threshold includes a first temperature difference threshold and a second temperature difference threshold, and the temperature control mode includes an energy-saving mode, an economic mode and a power mode.

[0115] Exemplarily, by obtaining the battery characteristic chart in the battery management system of the vehicle, a calculation is performed based on the determined target demand current to obtain the target battery temperature corresponding to the target demand current, and then the difference between it and the current temperature of the vehicle battery is calculated and set as the current temperature difference coefficient.

[0116] Then, the current temperature difference coefficient is compared with the preset temperature difference threshold, and based on the comparison result, a suitable temperature control mode, namely the target temperature control mode, is selected from the temperature control modes, specifically:

[0117] If the current temperature difference coefficient is less than or equal to the first temperature difference threshold, the temperature rise rate of the battery is controlled at a lower rate, that is, the energy saving mode is set as the target temperature control mode;

[0118] If the current temperature difference coefficient is greater than the second temperature difference threshold, the temperature rise rate of the battery is controlled at the fastest change rate, that is, the power mode is set to the target temperature control mode;

[0119] If the current temperature difference coefficient is greater than the first temperature difference threshold and less than or equal to the second temperature difference threshold, the temperature rise rate of the battery is controlled at a certain temperature change rate, that is, the economic mode is set as the target temperature control mode.

[0120] In an exemplary embodiment, the present application provides a vehicle battery temperature control method, the method comprising:

[0121] A regional analysis is performed on the current temperature according to the first temperature threshold and the second temperature threshold to obtain a first regional analysis result.

[0122] When the regional analysis result indicates that the current temperature is in the waiting operation region, a regional analysis is performed on the current temperature according to the third temperature threshold and the fourth temperature threshold to obtain a second regional analysis result.

[0123] When the second region analysis result shows that the current temperature is in the adjustment region, a rapid adjustment instruction is generated and a rapid adjustment operation is performed on the battery based on the rapid adjustment instruction.

[0124] The adjusted temperature is acquired, and a regional analysis is performed on the adjusted temperature according to the third temperature threshold and the fourth temperature threshold to obtain a third regional analysis result.

[0125] When the third region analysis result shows that the adjusted temperature is within the temperature control region, the adjustment operation is terminated and the third region analysis result is set as the temperature control result.

[0126] When the third region analysis result shows that the adjusted temperature is in the adjustment region, the rapid adjustment operation is continued on the battery until the battery temperature is in the temperature control region.

[0127] A first demand parameter is determined based on the current operating parameter.

[0128] A current parameter threshold is determined based on the current battery parameter.

[0129] The first demand parameter is compared with the current parameter threshold to obtain a comparative analysis result.

[0130] When the comparison and analysis result shows that the current vehicle parameter is greater than or equal to the vehicle demand parameter, the target demand current is determined based on the vehicle demand parameter and the battery characteristic mapping relationship.

[0131] The target battery temperature is obtained by performing difference calculation based on the mapping relationship between the target demand current and the battery characteristics;

[0132] The current temperature difference coefficient is determined based on the target battery temperature and the battery temperature of the vehicle.

[0133] Compare the current temperature difference coefficient with the preset temperature difference threshold to obtain a temperature difference comparison result.

[0134] The temperature control mode is screened according to the temperature difference comparison result to obtain the target temperature control mode.

[0135] When the temperature difference comparison result is that the current temperature difference coefficient is less than the first temperature difference threshold, the energy saving mode is set as the target temperature control mode.

[0136] When the temperature difference comparison result is that the current temperature difference coefficient is greater than or equal to the first temperature difference threshold and the current temperature difference coefficient is less than the second temperature difference threshold, the economic mode is set as the target temperature control mode.

[0137] When the temperature difference comparison result is that the current temperature difference coefficient is greater than or equal to the second temperature difference threshold, the power mode is set to the target temperature control mode.

[0138] In an exemplary embodiment, the present application provides a vehicle battery temperature control method, the method comprising:

[0139] A regional analysis is performed on the current temperature according to the first temperature threshold and the second temperature threshold to obtain a first regional analysis result.

[0140] When the regional analysis result indicates that the current temperature is in the waiting operation region, a regional analysis is performed on the current temperature according to the third temperature threshold and the fourth temperature threshold to obtain a second regional analysis result.

[0141] When the second region analysis result shows that the current temperature is in the adjustment region, a rapid adjustment instruction is generated and a rapid adjustment operation is performed on the battery based on the rapid adjustment instruction.

[0142] The adjusted temperature is acquired, and a regional analysis is performed on the adjusted temperature according to the third temperature threshold and the fourth temperature threshold to obtain a third regional analysis result.

[0143] When the third region analysis result shows that the adjusted temperature is within the temperature control region, the adjustment operation is terminated and the third region analysis result is set as the temperature control result.

[0144] When the third region analysis result shows that the adjusted temperature is in the adjustment region, the rapid adjustment operation is continued on the battery until the battery temperature is in the temperature control region.

[0145] Acquiring next journey data and determining a second demand parameter based on the next journey data;

[0146] determining a current parameter threshold based on the current vehicle parameter;

[0147] The second demand parameter is compared with the current parameter threshold to obtain a comparative analysis result.

[0148] When the comparison and analysis result shows that the current vehicle parameter is greater than or equal to the vehicle demand parameter, the target demand current is determined based on the vehicle demand parameter and the battery characteristic mapping relationship.

[0149] The target battery temperature is obtained by performing difference calculation based on the mapping relationship between the target demand current and the battery characteristics;

[0150] The current temperature difference coefficient is determined based on the target battery temperature and the battery temperature of the vehicle.

[0151] Compare the current temperature difference coefficient with the preset temperature difference threshold to obtain a temperature difference comparison result.

[0152] The temperature control mode is screened according to the temperature difference comparison result to obtain the target temperature control mode.

[0153] When the temperature difference comparison result is that the current temperature difference coefficient is less than the first temperature difference threshold, the energy saving mode is set as the target temperature control mode.

[0154] When the temperature difference comparison result is that the current temperature difference coefficient is greater than or equal to the first temperature difference threshold and the current temperature difference coefficient is less than the second temperature difference threshold, the economic mode is set as the target temperature control mode.

[0155] When the temperature difference comparison result is that the current temperature difference coefficient is greater than or equal to the second temperature difference threshold, the power mode is set to the target temperature control mode.

[0156] It should be understood that, although the various steps in the flowcharts involved in the above-mentioned embodiments are displayed in sequence according to the indication of the arrows, these steps are not necessarily executed in sequence according to the order indicated by the arrows. Unless there is a clear explanation in this article, the execution of these steps does not have a strict order restriction, and these steps can be executed in other orders. Moreover, at least a part of the steps in the flowcharts involved in the above-mentioned embodiments can include multiple steps or multiple stages, and these steps or stages are not necessarily executed at the same time, but can be executed at different times, and the execution order of these steps or stages is not necessarily to be carried out in sequence, but can be executed in turn or alternately with other steps or at least a part of the steps or stages in other steps.

[0157] Based on the same inventive concept, the embodiment of the present application also provides a vehicle battery temperature control device for implementing the vehicle battery temperature control method involved above. The implementation scheme for solving the problem provided by the device is similar to the implementation scheme recorded in the above method, so the specific limitations in one or more vehicle battery temperature control device embodiments provided below can refer to the limitations of the vehicle battery temperature control method above, and will not be repeated here.

[0158] In one embodiment, Figure 4As shown, a vehicle battery temperature control device is provided, including: a temperature control module 402, a comparison and analysis module 404, a parameter calculation module 406 and a mode adjustment module 408, wherein:

[0159] The temperature control module 402 is used to control the battery temperature based on the current temperature, the preset temperature threshold and the preset control strategy to obtain the temperature control result;

[0160] A comparison and analysis module 404 is used to perform a comparison and analysis based on the current vehicle parameters and the vehicle demand parameters to obtain a comparison and analysis result when the temperature control result is that the battery temperature is in the temperature control area;

[0161] A parameter calculation module 406, configured to determine a target demand current based on a mapping relationship between the vehicle demand parameter and a battery characteristic when the comparison and analysis result shows that the current vehicle parameter is greater than or equal to the vehicle demand parameter;

[0162] The mode adjustment module 408 is used to screen the temperature control mode based on the target demand current, the battery characteristic mapping relationship and the preset temperature difference threshold to obtain the target temperature control mode.

[0163] In an exemplary embodiment, the temperature control module 402 is also used to perform regional analysis on the current temperature according to the first temperature threshold and the second temperature threshold to obtain a first regional analysis result; when the regional analysis result is that the current temperature is in the standby area, perform regional analysis on the current temperature according to the third temperature threshold and the fourth temperature threshold to obtain a second regional analysis result; when the second regional analysis result is that the current temperature is in the adjustment area, generate a quick adjustment instruction and perform a quick adjustment operation on the battery based on the quick adjustment instruction; obtain the adjusted temperature, and perform regional analysis on the adjusted temperature according to the third temperature threshold and the fourth temperature threshold to obtain a third regional analysis result; when the third regional analysis result is that the adjusted temperature is in the temperature control area, end the adjustment operation and set the third regional analysis result as the temperature control result.

[0164] In an exemplary embodiment, the temperature control module 402 is further configured to, when the third region analysis result shows that the adjusted temperature is in the adjustment region, continue to perform a rapid adjustment operation on the battery until the battery temperature is in the temperature control region.

[0165] In an exemplary embodiment, the comparison and analysis module 404 is further used to determine a first demand parameter based on current operating parameters; determine a current parameter threshold based on current battery parameters; and compare the first demand parameter with the current parameter threshold to obtain a comparison and analysis result.

[0166] In an exemplary embodiment, the comparison and analysis module 404 is also used to obtain the next journey data and determine the second demand parameter based on the next journey data; determine the current parameter threshold based on the current vehicle parameters; compare the second demand parameter with the current parameter threshold to obtain a comparison and analysis result.

[0167] In an exemplary embodiment, the mode adjustment module 408 is also used to perform a difference calculation based on the target demand current and the battery characteristic mapping relationship to obtain a target battery temperature; determine a current temperature difference coefficient based on the target battery temperature and the battery temperature of the vehicle; compare the current temperature difference coefficient with a preset temperature difference threshold to obtain a temperature difference comparison result; and filter the temperature control mode according to the temperature difference comparison result to obtain a target temperature control mode.

[0168] In an exemplary embodiment, the mode adjustment module 408 is also used to set the energy-saving mode as the target temperature control mode when the temperature difference comparison result is that the current temperature difference coefficient is less than the first temperature difference threshold; to set the economic mode as the target temperature control mode when the temperature difference comparison result is that the current temperature difference coefficient is greater than or equal to the first temperature difference threshold and the current temperature difference coefficient is less than the second temperature difference threshold; and to set the power mode as the target temperature control mode when the temperature difference comparison result is that the current temperature difference coefficient is greater than or equal to the second temperature difference threshold.

[0169] Each module in the above-mentioned vehicle battery temperature control device can be implemented in whole or in part by software, hardware or a combination thereof. Each of the above-mentioned modules can be embedded in or independent of a processor in a computer device in the form of hardware, or can be stored in a memory in a computer device in the form of software, so that the processor can call and execute the corresponding operations of each of the above modules.

[0170] In one embodiment, a computer device is provided. The computer device may be a server, and its internal structure diagram may be as follows: Figure 5As shown. The computer device includes a processor, a memory, an input / output interface (Input / Output, referred to as I / O) and a communication interface. The processor, the memory and the input / output interface are connected through a system bus, and the communication interface is connected to the system bus through the input / output interface. The processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, a computer program and a database. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The database of the computer device is used to store battery temperature data of the vehicle battery. The input / output interface of the computer device is used to exchange information between the processor and an external device. The communication interface of the computer device is used to communicate with an external terminal through a network connection. When the computer program is executed by the processor, a vehicle battery temperature control method is implemented.

[0171] Those skilled in the art will understand that Figure 5 The structure shown in the figure is only a block diagram of a part of the structure related to the solution of the present application, and does not constitute a limitation on the computer device to which the solution of the present application is applied. The specific computer device may include more or fewer components than those shown in the figure, or combine certain components, or have a different arrangement of components.

[0172] In one embodiment, a computer device is provided, including a memory and a processor, wherein a computer program is stored in the memory, and the processor implements the steps in the above-mentioned method embodiments when executing the computer program.

[0173] In one embodiment, 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 in the above-mentioned method embodiments are implemented.

[0174] In one embodiment, a computer program product is provided, including a computer program, which implements the steps in the above method embodiments when executed by a processor.

[0175] It should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for analysis, stored data, displayed data, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties, and the collection, use and processing of relevant data must comply with relevant laws, regulations and standards of relevant countries and regions.

[0176] Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be completed by instructing the relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to the memory, database or other medium used in the embodiments provided in this application can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetoresistive random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. As an illustration and not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM). The database involved in each embodiment provided in this application may include at least one of a relational database and a non-relational database. Non-relational databases may include distributed databases based on blockchains, etc., but are not limited to this. The processor involved in each embodiment provided in this application may be a general-purpose processor, a central processing unit, a graphics processor, a digital signal processor, a programmable logic device, a data processing logic device based on quantum computing, etc., but are not limited to this.

[0177] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0178] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the attached claims.

Claims

1. A vehicle battery temperature control method, characterized in that: The method comprises: Regulating the battery temperature based on the current temperature, a preset temperature threshold, and a preset regulation strategy to obtain a temperature regulation result; When the temperature control result is that the battery temperature is within the temperature control area, performing comparative analysis based on current vehicle parameters and vehicle demand parameters to obtain comparative analysis results; When the comparison and analysis result shows that the current vehicle parameter is greater than or equal to the vehicle demand parameter, determining the target demand current based on the vehicle demand parameter and the battery characteristic mapping relationship; The temperature control mode is screened based on the target demand current, the battery characteristic mapping relationship and the preset temperature difference threshold to obtain the target temperature control mode.

2. The method according to claim 1, characterized in that: The preset temperature thresholds include a first temperature threshold, a second temperature threshold, a third temperature threshold and a fourth temperature threshold; the temperature of the battery is regulated based on the current temperature, the preset temperature threshold and the preset regulation strategy to obtain a temperature regulation result, including: Performing a regional analysis on the current temperature according to a first temperature threshold and a second temperature threshold to obtain a first regional analysis result; When the regional analysis result indicates that the current temperature is in the waiting operation area, performing regional analysis on the current temperature according to the third temperature threshold and the fourth temperature threshold to obtain a second regional analysis result; If the second region analysis result is that the current temperature is in the adjustment region, generating a fast adjustment instruction and performing a fast adjustment operation on the battery based on the fast adjustment instruction; Acquire the adjusted temperature, and perform regional analysis on the adjusted temperature according to the third temperature threshold and the fourth temperature threshold to obtain a third regional analysis result; When the third region analysis result shows that the adjusted temperature is within the temperature control region, the adjustment operation is terminated and the third region analysis result is set as the temperature control result.

3. The method according to claim 2, characterized in that After acquiring the adjusted temperature and performing regional analysis on the adjusted temperature according to the third temperature threshold and the fourth temperature threshold to obtain a third regional analysis result, the method further includes: When the third region analysis result is that the adjusted temperature is in the adjustment region, the rapid adjustment operation is continued on the battery until the battery temperature is in the temperature control region.

4. The method according to claim 1, characterized in that: The current vehicle parameters include current operating parameters and current battery parameters; when the temperature control result is that the battery temperature is in the temperature control area, a comparative analysis is performed based on the current vehicle parameters and the vehicle demand parameters to obtain a comparative analysis result, including: determining a first demand parameter based on the current operating parameter; Determining a current parameter threshold based on the current battery parameter; The first demand parameter is compared with the current parameter threshold to obtain a comparison analysis result.

5. The method according to claim 4, characterized in that When the temperature control result is that the battery temperature is in the temperature control area, performing comparative analysis based on the current vehicle parameters and the vehicle demand parameters to obtain the comparative analysis result, further comprising: Acquire next journey data and determine a second demand parameter based on the next journey data; determining a current parameter threshold based on the current vehicle parameter; The second demand parameter is compared with the current parameter threshold to obtain a comparison analysis result.

6. The method according to claim 1, characterized in that The screening of the temperature control mode based on the target demand current, the battery characteristic mapping relationship and the preset temperature difference threshold to obtain the target temperature control mode includes: Performing a difference calculation based on the target demand current and the battery characteristic mapping relationship to obtain a target battery temperature; determining a current temperature difference coefficient based on the target battery temperature and a battery temperature of the vehicle; Compare the current temperature difference coefficient with the preset temperature difference threshold to obtain a temperature difference comparison result; The temperature control mode is screened according to the temperature difference comparison result to obtain the target temperature control mode.

7. The method according to claim 6, characterized in that The preset temperature difference threshold includes a first temperature difference threshold and a second temperature difference threshold; the temperature control mode includes an energy-saving mode, an economic mode and a power mode; the temperature control mode is screened according to the temperature difference comparison result to obtain a target temperature control mode, including: When the temperature difference comparison result is that the current temperature difference coefficient is less than the first temperature difference threshold, setting the energy saving mode as the target temperature control mode; When the temperature difference comparison result is that the current temperature difference coefficient is greater than or equal to the first temperature difference threshold and the current temperature difference coefficient is less than the second temperature difference threshold, setting the economic mode as the target temperature control mode; When the temperature difference comparison result is that the current temperature difference coefficient is greater than or equal to the second temperature difference threshold, the power mode is set to the target temperature control mode.

8. A vehicle battery temperature control device, characterized in that: The device comprises: A temperature control module is used to control the battery temperature based on the current temperature, a preset temperature threshold and a preset control strategy to obtain a temperature control result; A comparison analysis module, for performing a comparison analysis based on current vehicle parameters and vehicle demand parameters to obtain a comparison analysis result when the temperature control result indicates that the battery temperature is within the temperature control area; A parameter calculation module, configured to determine a target demand current based on a mapping relationship between the vehicle demand parameter and a battery characteristic when the comparison and analysis result shows that the current vehicle parameter is greater than or equal to the vehicle demand parameter; The mode adjustment module is used to screen the temperature control mode based on the target demand current, the battery characteristic mapping relationship and the preset temperature difference threshold to obtain the target temperature control mode.

9. A computer device comprising a memory and a processor, wherein the memory stores a computer program, wherein: When the processor executes the computer program, the steps of the method according to any one of claims 1 to 7 are implemented.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 7 are implemented.

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