Battery charging preheating method and device, vehicle, electronic equipment and storage medium

Abstract

The invention discloses a battery charging preheating method and device, a vehicle, electronic equipment and a storage medium, and the method comprises the steps: obtaining the current battery state information and the current environment temperature of a vehicle battery after the charging intention information of the vehicle is determined through responding to a charging instruction; inputting the current battery state information and the current environment temperature into a simulation model of the target preheating temperature to obtain the target preheating temperature of the battery; inputting the real-time driving parameters and the historical driving information of the vehicle into the simulation model of the target preheating temperature so as to obtain the target required duration for heating to the target preheating temperature; according to the duration required for heating to the target preheating temperature, the starting moment of battery preheating is determined; and when the starting time of battery preheating is reached, controlling the battery to be preheated to the target preheating temperature. According to the method, battery preheating can be dynamically adjusted, the energy consumption reaches the minimum, meanwhile, the battery temperature is in the optimal charging interval when the electric vehicle arrives at the pile, it is ensured that the vehicle does not lose too much endurance mileage, and the charging performance of the battery is improved.

Description

Technical Field

[0001] The present disclosure relates to the field of vehicle technology, and in particular to a battery charging preheating method and device, a vehicle, an electronic device, and a storage medium. Background Art

[0002] The charging speed of power batteries is crucial to the application of electric vehicles. The charging conditions of lithium batteries are complex and changeable. Under different temperatures and different remaining power conditions, their charging capacity varies greatly. In winter in northern my country, the battery temperature is as low as -10℃~-20℃. Compared with the normal temperature of 25℃, its allowable charging capacity will be reduced by 80%-90%, which greatly reduces the charging capacity and affects the user's charging experience.

[0003] In order to solve the problem of greatly reduced battery charging capacity under low temperature, in the related technology, the user issues a command to heat the battery, and the battery is heated in advance during driving through the command issued by the user, so that the battery is at the optimal charging temperature when it arrives at the charging pile. However, this preheating method requires the user to judge the time to start battery preheating, and cannot dynamically adjust the time and power of battery preheating. It also cannot determine the best time to start battery preheating, which may cause greater vehicle energy consumption, and thus cause the vehicle to lose too much range. Summary of the invention

[0004] The present disclosure provides a battery charging preheating method and device, a vehicle, an electronic device and a storage medium. Its main purpose is to solve the problem of heating the battery in advance during driving, which can significantly reduce the charging capacity and may cause greater energy consumption of the vehicle, thereby causing the vehicle to lose too much cruising range.

[0005] According to a first aspect of the present disclosure, a battery charging preheating method is provided, comprising:

[0006] After determining the charging intention information of the vehicle by responding to the charging instruction, obtaining the current battery status information of the vehicle battery and the current ambient temperature;

[0007] Inputting the current battery state information and the current ambient temperature into a simulation model of a target preheating temperature to obtain a target preheating temperature of the battery;

[0008] Inputting the real-time driving parameters and historical driving information of the vehicle into the simulation model of the target preheating temperature to obtain the target time required for heating to the target preheating temperature; wherein the simulation model of the target preheating temperature determines the target time required for heating to the target preheating temperature through a first mapping table, wherein the first mapping table contains the correspondence between the preset required time for heating to the preheating temperature and the driving parameters and the historical driving information;

[0009] Determining a start time for battery preheating according to the time required for heating to the target preheating temperature;

[0010] When the start time of the battery preheating is reached, the battery is controlled to be preheated to the target preheating temperature.

[0011] Optionally, the charging instruction includes: a search instruction for a charging pile in map navigation and a pre-configured timed charging instruction;

[0012] The determining the charging intention information of the vehicle by responding to the charging instruction includes:

[0013] Determining the charging intention information according to a search instruction for a charging pile in map navigation;

[0014] Or, the charging intention information is determined according to a pre-configured timed charging instruction.

[0015] Optionally, the current battery status information includes: current battery remaining power and current battery temperature;

[0016] The step of inputting the current battery status information and the current ambient temperature into a simulation model of a target preheating temperature to obtain a target preheating temperature of the battery includes:

[0017] Determining the current remaining battery power and the current battery temperature;

[0018] The current battery remaining power, the current battery temperature and the current ambient temperature are input into the simulation model of the target preheating temperature to obtain the target preheating temperature of the battery; wherein the simulation model of the target preheating temperature determines the target preheating temperature of the battery through a second mapping table, wherein the second mapping table contains the correspondence between the battery remaining power, the battery temperature and the ambient temperature and the preheating temperature, respectively, and the correspondence is obtained in advance by calculation.

[0019] Optionally, searching a preset mapping table for a target time required for heating to the target preheating temperature according to the real-time driving parameters and historical driving information of the vehicle includes:

[0020] The actual distance information from the target charging pile and the vehicle driving speed are calculated to obtain an estimated driving time to reach the target charging pile, wherein the real-time driving parameters of the vehicle include: the actual distance information from the target charging pile and the vehicle driving speed;

[0021] According to the current road condition information in the real-time driving parameters, searching the first mapping table for the target vehicle energy consumption and the target allowable heating power of the corresponding vehicle; wherein the first mapping table includes the corresponding relationship between the road condition information and the vehicle energy consumption and the allowable heating power of the vehicle;

[0022] According to the estimated driving time, the target vehicle energy consumption and the target allowable heating power, the time required for heating to the target preheating temperature is searched from the first mapping table.

[0023] Optionally, determining the start time of battery preheating according to the time required for heating to the target preheating temperature includes:

[0024] Determine a temperature rise path for battery preheating based on the time required for heating to the target preheating temperature, wherein the temperature rise path is a curve generated by a temperature rise rate and a temperature rise time;

[0025] The start time of battery preheating is determined based on the temperature rise path of battery preheating, and the current time and the time required for heating to the target preheating temperature.

[0026] Optionally, when the start time of battery preheating is reached, controlling the battery to be preheated to the target preheating temperature includes:

[0027] When the start time of battery preheating is reached, triggering a battery heating instruction;

[0028] Based on the battery heating instruction, the battery is controlled to be preheated to the target preheating temperature.

[0029] According to a second aspect of the present disclosure, a battery charging preheating device is provided, comprising:

[0030] an acquisition unit, configured to acquire current battery status information of a vehicle battery and a current ambient temperature after determining the charging intention information of the vehicle by responding to the charging instruction;

[0031] A first input unit, used to input the current battery state information and the current ambient temperature into a simulation model of a target preheating temperature to obtain a target preheating temperature of the battery;

[0032] a second input unit, for inputting the real-time driving parameters and historical driving information of the vehicle into the simulation model of the target preheating temperature, so as to obtain the target time required for heating to the target preheating temperature; wherein the simulation model of the target preheating temperature determines the target time required for heating to the target preheating temperature through a first mapping table, wherein the first mapping table contains the correspondence between the preset required time for heating to the preheating temperature and the driving parameters and the historical driving information;

[0033] a determination unit, configured to determine a start time of battery preheating according to a time required for heating to the target preheating temperature;

[0034] The control unit is used to control the battery to be preheated to the target preheating temperature when the start time of the battery preheating is reached.

[0035] Optionally, the acquiring unit is further used for:

[0036] Determining the charging intention information according to a search instruction for a charging pile in map navigation;

[0037] Or, the charging intention information is determined according to a pre-configured timed charging instruction.

[0038] Optionally, the current battery status information includes: current battery remaining power and current battery temperature;

[0039] Optionally, the first input unit includes:

[0040] A determination module, determining the current remaining battery power and the current battery temperature;

[0041] An input module is used to input the current battery remaining power, the current battery temperature and the current ambient temperature into the simulation model of the target preheating temperature to obtain the target preheating temperature of the battery; wherein the simulation model of the target preheating temperature determines the target preheating temperature of the battery through a second mapping table, wherein the second mapping table contains the corresponding relationships between the battery remaining power, the battery temperature and the ambient temperature and the preheating temperature, respectively, and the corresponding relationships are obtained in advance by calculation.

[0042] Optionally, the second input unit includes:

[0043] A calculation module, used to calculate the actual distance information from the target charging pile and the vehicle driving speed to obtain an estimated driving time to reach the target charging pile, wherein the real-time driving parameters of the vehicle include: the actual distance information from the target charging pile and the vehicle driving speed;

[0044] A first search module is used to search the target vehicle energy consumption and the target allowable heating power of the corresponding vehicle from the first mapping table according to the current road condition information in the real-time driving parameter; wherein the first mapping table includes the corresponding relationship between the road condition information and the vehicle energy consumption and the allowable heating power of the vehicle;

[0045] The second search module is used to search the time required for heating to the target preheating temperature from the first mapping table according to the estimated driving time, the target vehicle energy consumption and the target allowable heating power.

[0046] Optionally, the determining unit 34 includes:

[0047] A first determination module, configured to determine a temperature rise path for battery preheating based on the time required for heating to the target preheating temperature, wherein the temperature rise path is a curve generated by a temperature rise rate and a temperature rise time;

[0048] The second determination module is used to determine the start time of battery preheating based on the temperature rise path of battery preheating and the current time and the time required for heating to the target preheating temperature.

[0049] Optionally, the control unit comprises:

[0050] A trigger module, used for triggering a battery heating instruction when the start time of battery preheating is reached;

[0051] A control module is used to control the battery to be preheated to the target preheating temperature based on the battery heating instruction.

[0052] According to a third aspect of the present disclosure, there is provided an electronic device, including:

[0053] at least one processor; and

[0054] a memory communicatively connected to the at least one processor; wherein,

[0055] The memory stores instructions that can be executed by the at least one processor, and the instructions are executed by the at least one processor to enable the at least one processor to perform the method described in the first aspect.

[0056] According to a fourth aspect of the present disclosure, a non-transitory computer-readable storage medium storing computer instructions is provided, wherein the computer instructions are used to enable the computer to execute the method described in the first aspect.

[0057] According to a fifth aspect of the present disclosure, a computer program product is provided, comprising a computer program, wherein when the computer program is executed by a processor, the computer program implements the method as described in the first aspect above.

[0058] The battery charging preheating method and device, vehicle, electronic device and storage medium provided by the present disclosure obtain the current battery status information and current ambient temperature of the vehicle battery after determining the charging intention information of the vehicle by responding to the charging instruction; input the current battery status information and the current ambient temperature into the simulation model of the target preheating temperature to obtain the target preheating temperature of the battery; input the real-time driving parameters and historical driving information of the vehicle into the simulation model of the target preheating temperature to obtain the target required time for heating to the target preheating temperature; wherein the simulation model of the target preheating temperature determines the target required time for heating to the target preheating temperature through a first mapping table, wherein the first mapping table contains the correspondence between the preset required time for heating to the preheating temperature and the driving parameters and the historical driving information respectively; determines the start time of battery preheating according to the required time for heating to the target preheating temperature; and when the start time of battery preheating is reached, controls the battery to be preheated to the target preheating temperature. Compared with the related art, after obtaining the charging intention information, the present invention combines the battery status information, ambient temperature, real-time vehicle driving parameters and historical driving information to look up the corresponding target preheating temperature and the time required to heat to the target preheating temperature through a mapping table pre-stored in the simulation model, thereby obtaining the optimal start time of the preheating strategy, dynamically adjusting the battery preheating, minimizing the energy consumption while ensuring that the battery temperature is in the optimal charging range when the tram arrives at the charging station, reducing energy consumption losses, thereby ensuring that the vehicle does not lose too much cruising range and improving the battery charging performance.

[0059] It should be understood that the content described in this section is not intended to identify the key or important features of the embodiments of the present application, nor is it intended to limit the scope of the present application. Other features of the present application will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0060] The accompanying drawings are used to better understand the present solution and do not constitute a limitation of the present disclosure.

[0061] Figure 1 A schematic diagram of a flow chart of a battery charging preheating method provided in an embodiment of the present disclosure;

[0062] Figure 2 A schematic flow chart of a method for the time required for heating to the target preheating temperature provided in an embodiment of the present application;

[0063] Figure 3 A schematic diagram of the structure of a battery charging preheating device provided in an embodiment of the present disclosure;

[0064] Figure 4 A schematic diagram of the structure of another battery charging preheating device provided in an embodiment of the present disclosure;

[0065] Figure 5 A schematic block diagram of an exemplary electronic device 400 provided for an embodiment of the present disclosure. DETAILED DESCRIPTION

[0066] The following is a description of exemplary embodiments of the present disclosure in conjunction with the accompanying drawings, including various details of the embodiments of the present disclosure to facilitate understanding, which should be considered as merely exemplary. Therefore, it should be recognized by those of ordinary skill in the art that various changes and modifications may be made to the embodiments described herein without departing from the scope and spirit of the present disclosure. Similarly, for the sake of clarity and conciseness, descriptions of well-known functions and structures are omitted in the following description.

[0067] The following describes a battery charging preheating method and device, a vehicle, an electronic device, and a storage medium according to embodiments of the present disclosure with reference to the accompanying drawings.

[0068] Figure 1 A schematic flow chart of a battery charging preheating method provided in an embodiment of the present disclosure.

[0069] like Figure 1 As shown, the method comprises the following steps:

[0070] Step 101, after determining the charging intention information of the vehicle by responding to the charging instruction, obtain the current battery status information and the current ambient temperature of the vehicle battery.

[0071] In some embodiments, in order to further explain the determination of the vehicle's charging intention information by responding to charging instructions, when the user searches for charging pile related information in the map, based on the interactive mode established between the map navigation and the power battery, the charging intention information is determined according to the charging pile search instruction in the map navigation, or the charging intention information is determined according to the pre-configured timed charging instruction. However, it should be clear that this description method is not intended to limit the method of obtaining the charging intention information, and other methods can also be used to obtain the charging intention information, and the specific method is not limited in the embodiments of this application.

[0072] In some embodiments, after determining the charging intention information, the current battery status information may be obtained by using, but not limited to, the battery management system (BMS) of the battery. A battery pack is generally composed of a battery module, a thermal management system, a battery management system (BMS), an electrical system, and structural parts. The battery management system (BMS) monitors the voltage, current, load, temperature, and other states of the vehicle battery, and can provide safety, communication, cell balancing and management control, and provide a communication interface with the application device. Therefore, the current battery status information can be obtained through the BMS. The current battery status information includes the current remaining battery power and the current battery temperature. The battery remaining power (State Of Charge, SOC) is a parameter that reflects the percentage of the current power in the battery pack to the total available capacity. It is an important monitoring data of the battery management system. The battery management system controls the working state of the battery according to the SOC value. The remaining power of the battery also reflects the state of charge of the battery.

[0073] Step 102: input the current battery status information and the current ambient temperature into a simulation model of a target preheating temperature to obtain a target preheating temperature of the battery.

[0074] After obtaining the current battery status information and the current ambient temperature, the current battery status information and the current ambient temperature are input into a simulation model of a target preheating temperature, the simulation model of the target preheating temperature is used to store and use a first mapping table and a second mapping table, in order to obtain the target preheating temperature, the simulation model of the target preheating temperature determines the target preheating temperature of the battery through the second mapping table, the second mapping table contains the correspondence between the remaining battery power, the battery temperature and the ambient temperature and the preheating temperature respectively.

[0075] However, it should be clear that this description method is not intended to limit the method for calculating the time required for heating the battery to the target preheating temperature, and the specific embodiments of the present application do not limit this.

[0076] Step 103, inputting the real-time driving parameters and historical driving information of the vehicle into the simulation model of the target preheating temperature to obtain the target time required for heating to the target preheating temperature; wherein the simulation model of the target preheating temperature determines the target time required for heating to the target preheating temperature through a first mapping table, and the first mapping table contains the corresponding relationships between the preset time required for heating to the preheating temperature and the driving parameters and the historical driving information.

[0077] After obtaining the target preheating temperature, further, in order to obtain the target time required for heating to the target preheating temperature, it is also necessary to obtain the real-time driving parameters and historical driving information of the vehicle. The real-time driving parameters of the vehicle include the actual distance information from the target charging pile and the driving speed of the vehicle. Based on the actual distance information from the target charging pile and the driving speed of the vehicle, the estimated driving time to reach the target charging pile is calculated according to the speed calculation formula. For example, the actual distance between the current vehicle and the target charging pile displayed on the navigation map is divided by the driving speed of the current vehicle to obtain the estimated driving time to reach the target charging pile calculated based on the current vehicle driving speed. However, the driving speed of the vehicle is not constant. If the driving speed of the vehicle changes during driving, the estimated driving time to reach the target charging pile will also change with the change of the vehicle driving speed. In addition, the real-time driving parameters also include current road condition information, and the current road condition information is matched with the road condition information recorded in the historical driving information in the first mapping table, so as to obtain the target vehicle energy consumption and target allowable heating power corresponding to the current road condition information. Different road condition information corresponds to different vehicle energy consumption and different allowable heating power. Various road conditions such as highways, rainy and snowy road conditions, mountainous road conditions, high temperature road conditions and other different road conditions, and their ambient temperature, driving speed and other external environmental factors have different effects on the vehicle. Therefore, different road conditions have different vehicle energy consumption and different allowable heating power.

[0078] The real-time driving parameters and the historical driving information of the vehicle are input into the simulation model of the target preheating temperature. The simulation model of the target preheating temperature determines the target time required for heating to the target preheating temperature through a first mapping table. The first mapping table contains the corresponding relationships between the preset time required for heating to the preheating temperature and the driving parameters and the historical driving information. After obtaining the estimated driving time to reach the target charging pile calculated based on the real-time driving parameters, the current road condition is matched with the road condition information in the historical driving information in the first mapping table according to the current road condition information in the real-time driving parameters, and the target vehicle energy consumption and the target allowable heating power of the corresponding vehicle are searched; then, according to the obtained estimated driving time, the target vehicle energy consumption and the target allowable heating power, the required time for heating to the target preheating temperature is searched from the first mapping table.

[0079] Step 104 : determining a start time of battery preheating according to the time required for heating to the target preheating temperature.

[0080] Based on the current time and the time required for heating to the target preheating temperature, the best time to start battery preheating can be calculated by adding the current time and the time required for heating to the target preheating temperature to determine the start time of battery preheating. However, it should be made clear that since the estimated driving time is required in the process of determining the time required for heating to the target preheating temperature, and the estimated driving time is a quantity that changes with the vehicle's driving speed, and information such as the ambient temperature is not constant, the time required for heating to the target preheating temperature will also be affected by changes in information such as the vehicle's driving speed, ambient temperature, and road conditions, and will change in real time, and will not remain constant.

[0081] In order to facilitate a better understanding of determining the start time of battery preheating based on the time required for heating to the target preheating temperature, the following method can be used but should not be limited to, for example, based on the time required for heating to the target preheating temperature, determining the temperature rise path of battery preheating, and based on the temperature rise path of battery preheating, determining the start time of battery preheating, wherein the temperature rise path is a curve generated by the temperature rise rate and the temperature rise time.

[0082] Step 105 : When the start time of the battery preheating is reached, control the battery to be preheated to the target preheating temperature.

[0083] In some embodiments, after determining the start time of battery preheating according to the time required for heating to the target preheating temperature, when the start time of battery preheating is reached, battery preheating is started through a battery management system (BMS), and the battery heating rate is dynamically adjusted based on information such as vehicle energy consumption, allowable heating power, and estimated driving time. While controlling the battery to be preheated to the target preheating temperature, the energy consumption of the preheated battery is minimized.

[0084] The battery charging preheating method provided by the present disclosure obtains the current battery status information and the current ambient temperature of the vehicle battery after determining the charging intention information of the vehicle by responding to the charging instruction; inputs the current battery status information and the current ambient temperature into a simulation model of a target preheating temperature to obtain the target preheating temperature of the battery; inputs the real-time driving parameters and historical driving information of the vehicle into the simulation model of the target preheating temperature to obtain the target required time for heating to the target preheating temperature; wherein the simulation model of the target preheating temperature determines the target required time for heating to the target preheating temperature through a first mapping table, wherein the first mapping table contains the correspondence between the preset required time for heating to the preheating temperature and the driving parameters and the historical driving information respectively; determines the start time of battery preheating according to the required time for heating to the target preheating temperature; and when the start time of battery preheating is reached, controls the battery to be preheated to the target preheating temperature. Compared with the related art, after obtaining the charging intention information, the present invention combines the battery status information, ambient temperature, real-time vehicle driving parameters and historical driving information to look up the corresponding target preheating temperature and the time required to heat to the target preheating temperature through a mapping table pre-stored in the simulation model, thereby obtaining the optimal start time of the preheating strategy, dynamically adjusting the battery preheating, minimizing the energy consumption while ensuring that the battery temperature is in the optimal charging range when the tram arrives at the charging station, reducing energy consumption losses, thereby ensuring that the vehicle does not lose too much cruising range and improving the battery charging performance.

[0085] In some embodiments, the charging intention information refers to the prediction of the vehicle's charging intention based on the vehicle's surrounding environment, the driver's habits, and vehicle navigation information during the vehicle's driving process, so as to assist the vehicle in preparing for charging and achieve a better charging effect. The determination of the vehicle's charging intention information may be carried out by, but not limited to, the following methods: determining the charging intention information based on the user's search instructions for charging piles in the map navigation, the vehicle's remaining power, and the vehicle's surrounding environment, or determining the charging intention information based on a pre-configured timed charging instruction.

[0086] In some embodiments, in order to obtain the current battery status information and the current ambient temperature to determine the target preheating temperature of the battery, the following method may be used but is not limited to, for example, the battery status information includes the current battery remaining capacity (SOC) and the current battery temperature. For the current battery remaining capacity (SOC), it can be obtained by estimating the current battery remaining capacity (SOC) by the battery management system (Battery Management System, BMS); for the current battery temperature, it can also be obtained by collecting the current battery temperature through the battery management system (BMS). The current ambient temperature can be obtained by a temperature sensor or other means. However, it should be clear that the above method is not a limitation on obtaining the current battery status information and the current ambient temperature, and the specific embodiments of the present application are not limited thereto.

[0087] In order to facilitate a better understanding of determining the target preheating temperature of the battery based on the current battery status information and the current ambient temperature, the following method can be used but should not be limited to, for example, based on the corresponding relationships between the remaining battery power, the battery temperature and the ambient temperature and the preheating temperature, the target preheating temperature corresponding to the current remaining battery power, the current battery temperature and the current ambient temperature is searched, thereby determining the target preheating temperature of the battery, wherein the corresponding relationships between the remaining battery power, the battery temperature and the ambient temperature and the preheating temperature can be obtained in advance by calculation.

[0088] In some embodiments, in order to facilitate a better understanding of the target time required for heating to the target preheating temperature from the preset mapping table according to the real-time driving parameters and historical driving information of the vehicle, the following methods may be used but are not limited to:

[0089] Figure 2 A schematic flow chart of a method for determining the time required for heating to the target preheating temperature provided in an embodiment of the present application.

[0090] like Figure 2 As shown, the method comprises the following steps:

[0091] Step 201, calculate the actual distance information from the target charging pile and the vehicle driving speed to obtain the estimated driving time to the target charging pile, wherein the real-time driving parameters of the vehicle include: the actual distance information from the target charging pile and the vehicle driving speed.

[0092] In some embodiments, the real-time driving speed of the vehicle can be obtained through the head-up display (HUD) system of the car, and the actual distance information between the vehicle and the target charging pile can be obtained through the vehicle navigation system. Based on the information obtained, the estimated driving time can be calculated by a preset algorithm. However, it should be clear that this description method is not intended to limit the method of obtaining the real-time driving parameters of the vehicle, nor is it intended to limit the method of calculating the estimated driving time.

[0093] Step 202, based on the current road condition information in the real-time driving parameters, search the target vehicle energy consumption and target allowable heating power of the corresponding vehicle from the first mapping table; wherein the first mapping table includes the correspondence between the road condition information and the vehicle energy consumption and allowable heating power of the vehicle.

[0094] In one embodiment of the present invention, in order to obtain the time required for heating to the target preheating temperature, the target vehicle energy consumption and target allowable heating power corresponding to the current road condition are required to estimate the preheating start time. The first mapping table includes the corresponding relationship between the road condition information and the vehicle energy consumption and allowable heating power of the vehicle, and based on the current road condition information in the real-time driving parameters obtained, the corresponding target vehicle energy consumption and target allowable heating power in the first mapping table are searched.

[0095] Step 203 , searching the first mapping table for the time required for heating to the target preheating temperature according to the estimated driving time, the target vehicle energy consumption and the target allowable heating power.

[0096] In some embodiments, the first mapping table is a mapping relationship table of the estimated driving time, the vehicle energy consumption, the allowable heating power, and the time required to heat to the target preheating temperature, and the mapping relationship is calculated in advance by the simulation model, and the first mapping table and the second mapping table are both stored in the simulation model.

[0097] In order to estimate the time required to heat to the target preheating temperature, it is necessary to determine the target allowable heating power of the battery. The following methods may be used but should not be limited to, for example, based on the historical driving information and the current ambient temperature, the corresponding target allowable heating power of the battery is searched from the user's historical habit library. The heating power takes into account the heat generated during the battery discharge process, including reversible heat and irreversible heat; it also takes into account the heat source provided to the battery by the vehicle thermal management, including but not limited to waste heat recovery, motor stalling, and positive temperature coefficient thermistor (PTC) heating.

[0098] In some embodiments, based on different preheating start-up times, the time taken for the battery to charge to a target remaining capacity (SOC) is different, as shown in Table 1, which represents a charging time for charging the remaining capacity from 10% to 70% under different vehicle operating conditions, in units of min.

[0099] Table 1

[0100]

[0101] It can be seen from Table 1 that when the battery is not preheated, the lower the current battery temperature, the longer the charging time, and the worse the battery charging performance. Compared with the case of no preheating, the battery charging time and charging performance are related to the preheating time and the distance from the charging pile. Different temperatures, preheating times and distances from the charging pile correspond to different charging times. Table 1 shows that at low temperatures, the battery charging performance can be improved by preheating the battery.

[0102] In order to facilitate a better understanding of determining the start time of battery preheating based on the time required for heating to the target preheating temperature, the following method can be used but should not be limited to: based on the time required for heating to the target preheating temperature, determine the temperature rise path of battery preheating, wherein the temperature rise path is a curve generated by the temperature rise rate and the temperature rise time, and based on the temperature rise path of battery preheating, determine the start time of battery preheating.

[0103] When the start time of the battery preheating is reached, controlling the battery to be preheated to the target preheating temperature may adopt but should not be limited to the following method. For example, when the start time of the battery preheating is reached, a battery heating instruction is triggered, and based on the battery heating instruction, the battery is controlled to be preheated to the target preheating temperature.

[0104] The above formula is not intended to limit the updating of the target calibration parameters to be achieved only through the above formula, and other methods are not limited in the embodiments of the present application.

[0105] In summary, the embodiments of the present disclosure can achieve the following effects:

[0106] 1. Determine the charging intention information of the vehicle, and determine the target preheating temperature of the battery according to the current battery status information and the current ambient temperature; obtain the time required for heating to the target preheating temperature based on the real-time driving parameters and historical driving information of the vehicle; determine the start time of battery preheating according to the time required for heating to the target preheating temperature; when the start time of battery preheating is reached, control the battery to be preheated to the target preheating temperature.

[0107] 2. Calculate the optimal start time of the preheating strategy based on road condition information and historical driving information, dynamically adjust and control the battery preheating to the target preheating temperature, so that the battery is at the optimal charging temperature when it arrives at the charging pile. While solving the problem of significantly reduced charging capacity, it reduces the energy consumption of the vehicle and prevents the vehicle from losing too much range.

[0108] Corresponding to the above-mentioned battery charging preheating method, the present invention also provides a battery charging preheating device. Since the device embodiment of the present invention corresponds to the above-mentioned method embodiment, the details not disclosed in the device embodiment can be referred to the above-mentioned method embodiment, and will not be repeated in the present invention.

[0109] Figure 3 A schematic diagram of the structure of a battery charging preheating device provided in an embodiment of the present disclosure is shown in FIG. Figure 3 As shown, including:

[0110] An acquisition unit 31, configured to acquire current battery status information and current ambient temperature of a vehicle battery after determining the charging intention information of the vehicle by responding to a charging instruction;

[0111] A first input unit 32, used to input the current battery state information and the current ambient temperature into a simulation model of a target preheating temperature to obtain a target preheating temperature of the battery;

[0112] The second input unit 33 is used to input the real-time driving parameters and historical driving information of the vehicle into the simulation model of the target preheating temperature to obtain the target time required for heating to the target preheating temperature; wherein the simulation model of the target preheating temperature determines the target time required for heating to the target preheating temperature through a first mapping table, and the first mapping table contains the correspondence between the preset required time for heating to the preheating temperature and the driving parameters and the historical driving information;

[0113] A determination unit 34, configured to determine a start time of battery preheating according to a time required for heating to the target preheating temperature;

[0114] The control unit 35 is used to control the battery to be preheated to the target preheating temperature when the start time of the battery preheating is reached.

[0115] The battery charging preheating device provided by the present disclosure obtains the current battery status information and the current ambient temperature of the vehicle battery after determining the charging intention information of the vehicle by responding to the charging instruction; inputs the current battery status information and the current ambient temperature into a simulation model of a target preheating temperature to obtain the target preheating temperature of the battery; inputs the real-time driving parameters and historical driving information of the vehicle into the simulation model of the target preheating temperature to obtain the target required time for heating to the target preheating temperature; wherein the simulation model of the target preheating temperature determines the target required time for heating to the target preheating temperature through a first mapping table, wherein the first mapping table contains the correspondence between the preset required time for heating to the preheating temperature and the driving parameters and the historical driving information respectively; determines the start time of battery preheating according to the required time for heating to the target preheating temperature; and when the start time of battery preheating is reached, controls the battery to be preheated to the target preheating temperature. Compared with the related art, after obtaining the charging intention information, the present invention combines the battery status information, ambient temperature, real-time vehicle driving parameters and historical driving information to look up the corresponding target preheating temperature and the time required to heat to the target preheating temperature through a mapping table pre-stored in the simulation model, thereby obtaining the optimal start time of the preheating strategy, dynamically adjusting the battery preheating, minimizing the energy consumption while ensuring that the battery temperature is in the optimal charging range when the tram arrives at the charging station, reducing energy consumption losses, thereby ensuring that the vehicle does not lose too much cruising range and improving the battery charging performance.

[0116] Figure 4 A schematic diagram of the structure of another battery charging preheating device provided in an embodiment of the present disclosure, such as Figure 4 As shown, including:

[0117] Furthermore, the acquisition unit is further used for:

[0118] Determining the charging intention information according to a search instruction for a charging pile in map navigation;

[0119] Or, the charging intention information is determined according to a pre-configured timed charging instruction.

[0120] Furthermore, the current battery status information includes: the current remaining battery power and the current battery temperature;

[0121] Furthermore, the first input unit 32 includes:

[0122] The determination module 321 determines the current remaining battery power and the current battery temperature;

[0123] The input module 322 is used to input the current battery remaining power, the current battery temperature and the current ambient temperature into the simulation model of the target preheating temperature to obtain the target preheating temperature of the battery; wherein the simulation model of the target preheating temperature determines the target preheating temperature of the battery through a second mapping table, and the second mapping table contains the corresponding relationships between the battery remaining power, the battery temperature and the ambient temperature and the preheating temperature, respectively, and the corresponding relationships are obtained in advance by calculation.

[0124] Furthermore, the second input unit 33 includes:

[0125] The calculation module 331 is used to calculate the actual distance information from the target charging pile and the vehicle driving speed to obtain the estimated driving time to the target charging pile, wherein the real-time driving parameters of the vehicle include: the actual distance information from the target charging pile and the vehicle driving speed;

[0126] A first search module 332 is used to search the target vehicle energy consumption and target allowable heating power of the corresponding vehicle from the first mapping table according to the current road condition information in the real-time driving parameter; wherein the first mapping table includes the corresponding relationship between the road condition information and the vehicle energy consumption and the allowable heating power of the vehicle;

[0127] The second search module 333 is used to search the first mapping table for the time required for heating to the target preheating temperature according to the estimated driving time, the target vehicle energy consumption and the target allowable heating power.

[0128] Further, the determining unit 34 includes:

[0129] A first determination module 341 is used to determine a temperature rise path of battery preheating based on the time required for heating to the target preheating temperature, wherein the temperature rise path is a curve generated by a temperature rise rate and a temperature rise time;

[0130] The second determination module 342 is used to determine the start time of battery preheating based on the temperature rise path of battery preheating and the current time and the time required for heating to the target preheating temperature.

[0131] Furthermore, the control unit 35 includes:

[0132] A trigger module 351, configured to trigger a battery heating instruction when the battery preheating start time is reached;

[0133] The control module 352 is configured to control the battery to be preheated to the target preheating temperature based on the battery heating instruction.

[0134] It should be noted that the above explanation of the method embodiment is also applicable to the device of this embodiment, and the principle is the same, which is not limited in this embodiment.

[0135] According to an embodiment of the present disclosure, the present disclosure also provides a vehicle, an electronic device, a readable storage medium, and a computer program product.

[0136] Figure 5 A schematic block diagram of an example electronic device 400 that can be used to implement an embodiment of the present disclosure is shown. The electronic device is intended to represent various forms of digital computers, such as laptop computers, desktop computers, workstations, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. The electronic device can also represent various forms of mobile devices, such as personal digital processing, cellular phones, smart phones, wearable devices, and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely examples and are not intended to limit the implementation of the present disclosure described and / or required herein.

[0137] like Figure 5 As shown, the device 400 includes a computing unit 401, which can perform various appropriate actions and processes according to a computer program stored in a ROM (Read-Only Memory) 402 or a computer program loaded from a storage unit 408 to a RAM (Random Access Memory) 403. In the RAM 403, various programs and data required for the operation of the device 400 can also be stored. The computing unit 401, the ROM 402, and the RAM 403 are connected to each other via a bus 404. An I / O (Input / Output) interface 405 is also connected to the bus 404.

[0138] A number of components in the device 400 are connected to the I / O interface 405, including: an input unit 406, such as a keyboard, a mouse, etc.; an output unit 407, such as various types of displays, speakers, etc.; a storage unit 408, such as a disk, an optical disk, etc.; and a communication unit 409, such as a network card, a modem, a wireless communication transceiver, etc. The communication unit 409 allows the device 400 to exchange information / data with other devices through a computer network such as the Internet and / or various telecommunication networks.

[0139] The computing unit 401 may be a variety of general and / or special processing components with processing and computing capabilities. Some examples of the computing unit 401 include, but are not limited to, a CPU (Central Processing Unit), a GPU (Graphic Processing Units), various dedicated AI (Artificial Intelligence) computing chips, various computing units running machine learning model algorithms, a DSP (Digital Signal Processor), and any appropriate processor, controller, microcontroller, etc. The computing unit 401 performs the various methods and processes described above, such as a battery charging preheating method. For example, in some embodiments, the battery charging preheating method may be implemented as a computer software program, which is tangibly contained in a machine-readable medium, such as a storage unit 408. In some embodiments, part or all of the computer program may be loaded and / or installed on the device 400 via the ROM 402 and / or the communication unit 409. When the computer program is loaded into the RAM 403 and executed by the computing unit 401, one or more steps of the method described above may be performed. Alternatively, in other embodiments, the computing unit 401 may be configured to execute the aforementioned battery charging preheating method in any other appropriate manner (for example, by means of firmware).

[0140] Various embodiments of the systems and techniques described above herein may be implemented in digital electronic circuit systems, integrated circuit systems, FPGAs (Field Programmable Gate Arrays), ASICs (Application-Specific Integrated Circuits), ASSPs (Application Specific Standard Products), SOCs (System On Chips), CPLDs (Complex Programmable Logic Devices), computer hardware, firmware, software, and / or combinations thereof. These various embodiments may include: being implemented in one or more computer programs that may be executed and / or interpreted on a programmable system including at least one programmable processor that may be a dedicated or general-purpose programmable processor that may receive data and instructions from a storage system, at least one input device, and at least one output device, and transmit data and instructions to the storage system, the at least one input device, and the at least one output device.

[0141] The program code for implementing the method of the present disclosure may be written in any combination of one or more programming languages. These program codes may be provided to a processor or controller of a general-purpose computer, a special-purpose computer, or other programmable data processing device, so that the program code, when executed by the processor or controller, enables the functions / operations specified in the flow chart and / or block diagram to be implemented. The program code may be executed entirely on the machine, partially on the machine, partially on the machine and partially on a remote machine as a stand-alone software package, or entirely on a remote machine or server.

[0142] In the context of the present disclosure, a machine-readable medium may be a tangible medium that may contain or store a program for use by or in conjunction with an instruction execution system, device, or equipment. A machine-readable medium may be a machine-readable signal medium or a machine-readable storage medium. A machine-readable medium may include, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, device, or device, or any suitable combination of the foregoing. More specific examples of machine-readable storage media may include an electrical connection based on one or more lines, a portable computer disk, a hard disk, a RAM, a ROM, an EPROM (Electrically Programmable Read-Only-Memory) or a flash memory, an optical fiber, a CD-ROM (Compact Dis sc Read-Only Memory), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

[0143] To provide interaction with a user, the systems and techniques described herein can be implemented on a computer having: a display device (e.g., a CRT (Cathode-Ray Tube) or LCD (Liquid Crystal Display) monitor) for displaying information to the user; and a keyboard and pointing device (e.g., a mouse or trackball) through which the user can provide input to the computer. Other types of devices can also be used to provide interaction with the user; for example, the feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user can be received in any form (including acoustic input, voice input, or tactile input).

[0144] The systems and techniques described herein may be implemented in a computing system that includes backend components (e.g., as a data server), or a computing system that includes middleware components (e.g., an application server), or a computing system that includes frontend components (e.g., a user computer with a graphical user interface or a web browser through which a user can interact with implementations of the systems and techniques described herein), or a computing system that includes any combination of such backend components, middleware components, or frontend components. The components of the system may be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: LAN (Local Area Network), WAN (Wide Area Network), the Internet, and blockchain networks.

[0145] A computer system may include a client and a server. The client and the server are generally remote from each other and usually interact through a communication network. The relationship between the client and the server is generated by computer programs running on the corresponding computers and having a client-server relationship with each other. The server may be a cloud server, also known as a cloud computing server or cloud host, which is a host product in the cloud computing service system to solve the defects of difficult management and weak business scalability in traditional physical hosts and VPS services ("Virtual Private Server", or "VPS" for short). The server may also be a server of a distributed system, or a server combined with a blockchain.

[0146] It should be noted that artificial intelligence is a discipline that studies how computers can simulate certain human thought processes and intelligent behaviors (such as learning, reasoning, thinking, planning, etc.), and includes both hardware-level and software-level technologies. Artificial intelligence hardware technologies generally include technologies such as sensors, dedicated artificial intelligence chips, cloud computing, distributed storage, and big data processing; artificial intelligence software technologies mainly include computer vision technology, speech recognition technology, natural language processing technology, as well as machine learning / deep learning, big data processing technology, knowledge graph technology, and other major directions.

[0147] It should be understood that the various forms of processes shown above can be used to reorder, add or delete steps. For example, the steps recorded in this disclosure can be executed in parallel, sequentially or in different orders, as long as the desired results of the technical solutions disclosed in this disclosure can be achieved, and this document does not limit this.

[0148] The above specific implementations do not constitute a limitation on the protection scope of the present disclosure. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modification, equivalent substitution and improvement made within the spirit and principle of the present disclosure shall be included in the protection scope of the present disclosure.

Claims

1. A battery charging preheating method, characterized in that: include: After determining the charging intention information of the vehicle by responding to the charging instruction, obtaining the current battery status information of the vehicle battery and the current ambient temperature; Inputting the current battery state information and the current ambient temperature into a simulation model of a target preheating temperature to obtain a target preheating temperature of the battery; Inputting the real-time driving parameters and historical driving information of the vehicle into the simulation model of the target preheating temperature to obtain the target time required for heating to the target preheating temperature; wherein the simulation model of the target preheating temperature determines the target time required for heating to the target preheating temperature through a first mapping table, wherein the first mapping table contains the correspondence between the preset required time for heating to the preheating temperature and the driving parameters and the historical driving information; Determining a start time for battery preheating according to the time required for heating to the target preheating temperature; When the start time of the battery preheating is reached, the battery is controlled to be preheated to the target preheating temperature.

2. The battery charging preheating method according to claim 1, characterized in that: The charging instructions include: a search instruction for charging piles in map navigation and a pre-configured timed charging instruction; The determining the charging intention information of the vehicle by responding to the charging instruction includes: Determining the charging intention information according to a search instruction for a charging pile in map navigation; Or, the charging intention information is determined according to a pre-configured timed charging instruction.

3. The method according to claim 1, characterized in that: The current battery status information includes: the current remaining battery power and the current battery temperature; The step of inputting the current battery status information and the current ambient temperature into a simulation model of a target preheating temperature to obtain a target preheating temperature of the battery includes: Determining the current remaining battery power and the current battery temperature; The current battery remaining power, the current battery temperature and the current ambient temperature are input into the simulation model of the target preheating temperature to obtain the target preheating temperature of the battery; wherein the simulation model of the target preheating temperature determines the target preheating temperature of the battery through a second mapping table, wherein the second mapping table contains the correspondence between the battery remaining power, the battery temperature and the ambient temperature and the preheating temperature, respectively, and the correspondence is obtained in advance by calculation.

4. The method according to claim 1, characterized in that The step of searching the preset mapping table for the target time required for heating to the target preheating temperature according to the real-time driving parameters and historical driving information of the vehicle includes: The actual distance information from the target charging pile and the vehicle driving speed are calculated to obtain an estimated driving time to reach the target charging pile, wherein the real-time driving parameters of the vehicle include: the actual distance information from the target charging pile and the vehicle driving speed; According to the current road condition information in the real-time driving parameters, searching the first mapping table for the target vehicle energy consumption and the target allowable heating power of the corresponding vehicle; wherein the first mapping table includes the corresponding relationship between the road condition information and the vehicle energy consumption and the allowable heating power of the vehicle; According to the estimated driving time, the target vehicle energy consumption and the target allowable heating power, the time required for heating to the target preheating temperature is searched from the first mapping table.

5. The battery charging preheating method according to claim 1, characterized in that: The step of determining the start time of battery preheating according to the time required for heating to the target preheating temperature includes: Determine a temperature rise path for battery preheating based on the time required for heating to the target preheating temperature, wherein the temperature rise path is a curve generated by a temperature rise rate and a temperature rise time; The start time of battery preheating is determined based on the temperature rise path of battery preheating, and the current time and the time required for heating to the target preheating temperature.

6. The battery charging preheating method according to claim 1, characterized in that: When the start time of the battery preheating is reached, controlling the battery to be preheated to the target preheating temperature includes: When the start time of the battery preheating is reached, triggering a battery heating instruction; Based on the battery heating instruction, the battery is controlled to be preheated to the target preheating temperature.

7. A battery charging preheating device, characterized in that: include: an acquisition unit, configured to acquire current battery status information of the vehicle battery and current ambient temperature after determining the charging intention information of the vehicle by responding to the charging instruction; A first input unit, used to input the current battery state information and the current ambient temperature into a simulation model of a target preheating temperature to obtain a target preheating temperature of the battery; a second input unit, for inputting the real-time driving parameters and historical driving information of the vehicle into the simulation model of the target preheating temperature, so as to obtain the target time required for heating to the target preheating temperature; wherein the simulation model of the target preheating temperature determines the target time required for heating to the target preheating temperature through a first mapping table, wherein the first mapping table contains the correspondence between the preset required time for heating to the preheating temperature and the driving parameters and the historical driving information; a determination unit, configured to determine a start time of battery preheating according to a time required for heating to the target preheating temperature; The control unit is used to control the battery to be preheated to the target preheating temperature when the start time of the battery preheating is reached.

8. An electronic device, characterized in that: include: at least one processor; as well as a memory communicatively connected to the at least one processor; wherein, The memory stores instructions that can be executed by the at least one processor, and the instructions are executed by the at least one processor to enable the at least one processor to perform the method according to any one of claims 1 to 6.

9. A non-transitory computer-readable storage medium storing computer instructions, characterized in that: The computer instructions are used to cause the computer to execute the method according to any one of claims 1-6.

10. A computer program product, characterized in that The invention comprises a computer program which, when executed by a processor, implements the method according to any one of claims 1 to 6.

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