Vehicle control method and device, vehicle and storage medium

Abstract

The invention discloses a vehicle control method and device, a vehicle and a storage medium, the vehicle comprises a power battery and a storage battery, and the voltage of the power battery is larger than that of the storage battery. The method comprises the steps that under the condition that the vehicle meets the charging condition, the historical charging rate of a storage battery is determined; the electricity supplementing condition refers to the condition that the vehicle needs to meet when the storage battery needs to supplement electric energy through the power battery; based on the historical charging rate, determining a charging voltage provided for the storage battery; wherein the charging voltage and the historical charging rate are in a negative correlation relationship; and charging the storage battery through the power battery based on the charging voltage. Therefore, the vehicle can trigger the high-voltage battery (i.e., the power battery) to charge the storage battery under the charging condition, so that the situation that the storage battery is lack of electricity is avoided, and then normal use of the storage battery in the follow-up process is ensured.

Description

Technical Field

[0001] The present application relates to the field of vehicle control technology, and more specifically, to a vehicle control method, device, vehicle and storage medium. Background Art

[0002] With the rapid development of new energy vehicles, their electrification and intelligence levels are constantly improving, resulting in increased battery power consumption.

[0003] However, since the battery capacity is relatively small, when the vehicle is not used for a long time, it is easy to run out of power, which in turn affects the normal use of the battery. Summary of the invention

[0004] Embodiments of the present application provide a vehicle control method, a vehicle control device, a vehicle, and a storage medium.

[0005] In the first aspect, some embodiments of the present application provide a control method for a vehicle, wherein the vehicle includes a power battery and a storage battery, wherein the voltage of the power battery is greater than the voltage of the storage battery. The method includes: step S310, when the vehicle meets the replenishment condition, determining the historical charging rate of the storage battery; wherein the replenishment condition refers to the condition that the vehicle needs to meet when the storage battery needs to be replenished with electric energy through the power battery; step S320, based on the historical charging rate, determining the replenishment voltage provided to the storage battery; wherein the replenishment voltage and the historical charging rate are negatively correlated; step S330, based on the replenishment voltage, replenishing the storage battery through the power battery.

[0006] In a second aspect, some embodiments of the present application also provide a control device for a vehicle, wherein the vehicle includes a power battery and a storage battery, wherein the voltage of the power battery is greater than the voltage of the storage battery. The device includes a first determination module, a second determination module, and a power replenishment module. The first determination module is used to determine the historical charging rate of the storage battery when the vehicle meets the power replenishment condition; wherein the power replenishment condition refers to the condition that the vehicle needs to meet when the storage battery needs to replenish electrical energy through the power battery. The second determination module is used to determine the power replenishment voltage provided to the storage battery based on the historical charging rate; wherein the power replenishment voltage and the historical charging rate are negatively correlated. The power replenishment module is used to replenish the storage battery through the power battery based on the power replenishment voltage.

[0007] In a third aspect, some embodiments of the present application further provide a vehicle, the vehicle comprising a storage battery, a power battery, one or more processors, a memory, and one or more applications. The voltage of the power battery is greater than the voltage of the storage battery. The one or more applications are stored in the memory and configured to be executed by the one or more processors, and are configured to execute the above method.

[0008] In a fourth aspect, an embodiment of the present application further provides a computer-readable storage medium, wherein the computer-readable storage medium stores computer program instructions, wherein the computer program instructions can be called by a processor to execute the above method.

[0009] In a fifth aspect, an embodiment of the present application further provides a computer program product, which implements the above method when executed.

[0010] The present application provides a vehicle control method, device, vehicle and storage medium, wherein the vehicle includes a power battery and a storage battery, and the voltage of the power battery is greater than the voltage of the storage battery. For example, the power battery may be a high-voltage battery in the vehicle, which may provide electrical energy for the vehicle to travel; the storage battery may be a low-voltage battery in the vehicle, which may supply power to electronic devices (e.g., laser radar, camera, etc.) in the vehicle.

[0011] The control method provided in the present application determines the charging voltage provided to the battery based on the historical charging rate corresponding to the battery when the vehicle meets the charging conditions; and based on the charging voltage, the battery is charged by the power battery. Among them, the charging condition refers to the condition that the vehicle needs to meet when the battery needs to be supplemented with electric energy through the power battery. For example, when the battery power value is low, the high-voltage battery (that is, the power battery) will be triggered to charge the battery to avoid the battery from running out of power, thereby ensuring the normal use of the subsequent battery.

[0012] Specifically, the charging voltage provided to the battery is negatively correlated with the historical charging rate. In other words, the smaller the historical charging rate, the greater the charging voltage. For example, if there is an aging problem inside the battery, the charging rate of the battery will be reduced and the charging time will be longer. Therefore, the vehicle in this application will flexibly adjust the charging voltage based on the historical charging rate. For example, when the historical charging rate is low, the vehicle will increase the corresponding value of the charging voltage to shorten the charging time and improve the charging efficiency of the battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0014] Figure 1 It is a schematic diagram of the structure of a vehicle provided in an embodiment of the present application.

[0015] Figure 2 yes Figure 1 Block diagram of the center console in the vehicle shown.

[0016] Figure 3 It is a flow chart of a vehicle control method provided in the first embodiment of the present application.

[0017] Figure 4 It is a flow chart of a vehicle control method provided in the second embodiment of the present application.

[0018] Figure 5 It is a flow chart of a vehicle control method provided in the third embodiment of the present application.

[0019] Figure 6 It is a flow chart of a vehicle control method provided in the fourth embodiment of the present application.

[0020] Figure 7 It is a flowchart of a vehicle control method provided in the fifth embodiment of the present application.

[0021] Figure 8 It is a flow chart of a vehicle control method provided in the sixth embodiment of the present application.

[0022] Fig. 9 It is a module block diagram of a vehicle control device provided in an embodiment of the present application.

[0023] Fig.10 It is a module block diagram of the vehicle provided in an embodiment of the present application. DETAILED DESCRIPTION

[0024] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0025] In order to enable those skilled in the art to better understand the solutions of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the present application.

[0026] The present application provides a vehicle control method, device, vehicle and storage medium, wherein the vehicle includes a power battery and a storage battery, and the voltage of the power battery is greater than the voltage of the storage battery. For example, the power battery may be a high-voltage battery in the vehicle, which may provide electrical energy for the vehicle to travel; the storage battery may be a low-voltage battery in the vehicle, which may supply power to electronic devices (e.g., laser radar, camera, etc.) in the vehicle.

[0027] The control method provided in the present application determines the charging voltage provided to the battery based on the historical charging rate corresponding to the battery when the vehicle meets the charging conditions; and based on the charging voltage, the battery is charged by the power battery. Among them, the charging condition refers to the condition that the vehicle needs to meet when the battery needs to be supplemented with electric energy through the power battery. For example, when the battery power value is low, the high-voltage battery (that is, the power battery) will be triggered to charge the battery to avoid the battery from running out of power, thereby ensuring the normal use of the subsequent battery.

[0028] Specifically, the charging voltage provided to the battery is negatively correlated with the historical charging rate. In other words, the smaller the historical charging rate, the greater the charging voltage. For example, if there is an aging problem inside the battery, the charging rate of the battery will be reduced and the charging time will be longer. Therefore, the vehicle in this application will flexibly adjust the charging voltage based on the historical charging rate. For example, when the historical charging rate is low, the vehicle will increase the corresponding value of the charging voltage to shorten the charging time and improve the charging efficiency of the battery.

[0029] In order to facilitate the detailed description of the present application, the application environment of the present application embodiment is first introduced in conjunction with the accompanying drawings. Figure 1 , which shows a schematic diagram of the application environment of the control method provided in the embodiment of the present application, the method is applied to a vehicle 100, which refers to a vehicle driven or towed by a power device for passengers or for transporting goods, including but not limited to a sedan, a suburban utility vehicle (SUV), a multi-purpose vehicle (MPV), an unmanned online car-hailing vehicle, a minibus, a bus, etc. Specifically, the vehicle 100 in the present application is a new energy electric vehicle, which mainly uses electricity as a power source.

[0030] In the embodiment of the present application, the vehicle 100 may include a vehicle body 110, a center console 120, a power battery 130, and a storage battery 140. The center console 120, the power battery 130, and the storage battery 140 are arranged in the vehicle body 110, and the vehicle body 110 plays a role in fixing and protecting the center console 120, the power battery 130, and the storage battery 140.

[0031] The center console 120 is used to process signals and data, and control the vehicle body 110 to work (e.g., moving forward, braking, steering, etc.) according to the processed parameters. Specifically, the center console 120 can integrate one or more controllers, such as a vehicle domain controller (VDC), which is responsible for integrating and managing multiple electronic control units (ECUs) to improve the intelligence and automation level of the vehicle 100.

[0032] The power battery 130 is used to provide electric energy for the vehicle 100 to travel. The power battery 130 can be regarded as a "high-voltage battery" in the vehicle 100, and its operating voltage can be greater than or equal to 200V, for example, 200V, 300V, 500V, 750V, etc. Specifically, the power battery 130 can be a valve-sealed lead-acid battery, an open-type tubular lead-acid battery, a lithium iron phosphate battery, etc. In this embodiment, the power battery 130 is electrically connected to the center console 120, and the center console 120 can monitor the battery status information of the power battery 130, for example, the power value, health status, temperature, etc. of the power battery 130.

[0033] The voltage of the battery 140 is lower than that of the power battery 130, and the battery 140 can be regarded as a "low-voltage battery" in the vehicle 100, and its operating voltage can be less than or equal to 25V, for example, 12V, 15V, 25V, etc. Specifically, the battery 140 can be used as an auxiliary power supply in the vehicle 100 to supply power to electronic devices in the vehicle (for example, low-voltage loads such as laser radar and cameras). Exemplarily, the battery 140 can be a single lead-acid battery or a lithium-ion battery, etc.

[0034] In this embodiment, the storage battery 140 and the power battery 130 are electrically connected so that the power battery 130 can supplement the storage battery 140. Specifically, a direct current-to-direct current converter (i.e., a DC-DC converter) may be connected between the storage battery 140 and the power battery 130, and the DC-DC converter is used to step down the high voltage output by the storage battery 140 to form a supplementary voltage provided to the storage battery 140. Exemplarily, the DC-DC converter may be a charge pump or an inductive energy storage converter.

[0035] Specifically, the center console 120 is electrically connected to the battery 140 and the DC-DC converter, respectively. On the one hand, the center console 120 can monitor the battery status information of the battery 140, such as the power value, temperature, current, voltage, state of charge (SOC), etc., and determine whether the battery 140 is in a low-power state based on the battery status information. Among them, "low-power state" refers to a state where the actual voltage of the battery 140 is less than the normal working voltage. Specifically, when the battery 140 is in a low-power state, the user will be unable to start the vehicle 100, and the entire vehicle will not be able to be powered on at high voltage. On the other hand, the center console 120 can control the DC-DC converter to adjust the replenishment voltage provided to the battery 140 when the power battery 130 replenishes power to the battery 140, thereby improving the replenishment efficiency of the battery 140.

[0036] In some possible embodiments, the vehicle 100 may further include an onboard display screen (not shown in the figure), which is electrically connected to the center console 120, so that the center console 120 can display the prompt information through the onboard display screen. In other possible embodiments, the center console 120 may be communicatively connected to a user's mobile device (e.g., a smart phone, a tablet computer, etc.), so that the center console 120 can send the prompt information to the mobile device, so that the user can receive the prompt information in time.

[0037] See also Figure 2 The central control console 120 may include a monitoring and data acquisition module 1210, a logic processing module 1230, a data storage and calculation module 1250, an execution module 1270, and a push module 1290. The logic processing module 1230 is electrically connected to the monitoring and data acquisition module 1210, the data storage and calculation module 1250, the execution module 1270, and the push module 1290, respectively, and the monitoring and data acquisition module 1210 is also electrically connected to the data storage and calculation module 1250.

[0038] The monitoring and data acquisition module 1210 is responsible for waking up the vehicle sensors and ECU controllers at regular intervals and collecting data in real time or periodically, providing a data source for subsequent data processing and analysis. Exemplarily, the monitoring and data acquisition module 1210 can collect one or more of the following data:

[0039] (1) Vehicle code: Also known as the Vehicle Identification Number (VIN), it is the unique identifier of each vehicle.

[0040] (2) Data collection time: record the specific time point of data collection, in seconds.

[0041] (3) Vehicle status: including vehicle driving, stopping, charging, speed, etc.

[0042] (4) OTA status: Whether it is in OTA mode. OTA mode refers to the mode of remotely updating vehicle software through wireless network using Over-The-Air technology.

[0043] (5) Battery status information of the power battery 130: including power value, health status, temperature, etc., which can directly reflect the status of the high-voltage battery system in the vehicle 100.

[0044] (6) Output voltage and output current of the DC-DC converter.

[0045] (7) Model or code of the battery 140: used to identify information such as the characteristics and rated capacity of the battery.

[0046] (8) Battery status information of the battery 140 : including temperature, current, voltage, power status, etc., which can directly reflect the performance and health status of the battery 140 .

[0047] (9) Battery current accuracy range: used to evaluate the accuracy of the current sensor or correct the current measurement value.

[0048] (10) Status of the four doors and two covers (car doors, engine cover, and trunk cover): reflects the safety status of the vehicle and the entry and exit conditions of passengers.

[0049] (11) Information on the load status of other electrical appliances such as air conditioners, seats, and lights.

[0050] Specifically, the data acquisition frequency of the monitoring and data acquisition module 1210 may be 1 Hz, and more parameter detail changes can be obtained through high-frequency data acquisition, which is conducive to discovering potential problems and abnormal behaviors of the vehicle 100 and improving the accuracy and timeliness of the prediction. The monitoring and data acquisition module 1210 may be implemented by a node such as a TBOX, a gateway, a central domain controller, etc. that can collect vehicle signals.

[0051] The logic processing module 1230 is used to perform logic judgment, make decisions or generate control instructions based on the read real-time data, data calculation results and historical data, etc., combined with preset rules and algorithms. In this embodiment, the logic processing module 1230 can be specifically responsible for judging whether the battery 140 starts to replenish power, judging the setting of the replenishment voltage, judging whether the replenishment is completed, and whether the SMS reminder is pushed. Specifically, the logic processing module 1230 can be integrated and implemented by the vehicle ECU controller.

[0052] The data storage and calculation module 1250 is used for data preprocessing, data calculation and data storage. Among them, data preprocessing can include data cleaning, outlier filtering, missing value interpolation, etc. The method of outlier filtering can include deleting outliers, treating outliers as missing values, etc. The method of missing value interpolation includes deleting records with missing values, filling missing values ​​with mean, median, mode or predicted value, etc. Data calculation can include the algorithm implementation of battery capacity value, SOH and charging rate, etc. Data storage can include the storage of data information such as vehicle VIN, battery code, battery rated capacity, capacity value calculated each time, charging rate calculated each time, etc. Specifically, the data storage and calculation module 1250 can be implemented by the vehicle ECU controller or cloud integration.

[0053] The execution module 1270 is used to execute corresponding operations or tasks according to the decision of the logic processing module. It mainly controls the vehicle wake-up, high voltage, low voltage, vehicle sleep, message sending, database update, etc. Specifically, the execution module 1270 can be composed of the vehicle's high voltage system, vehicle network, data storage unit, etc.

[0054] The push module 1290 is used to push the processing results, alarm information or notification messages (e.g., prompt information) to users, other systems or devices to ensure that the information can be timely and accurately conveyed to relevant personnel or systems so that corresponding actions can be taken. Specifically, the push module 1290 can be implemented by components such as TBOX, IOT platform, message queue (e.g., RabbitMQ, Kafka, etc.), push notification service (e.g., FCM, SMS, etc.), email service, etc.

[0055] See also Figure 3 , which shows a vehicle control method provided by the first embodiment of the present application, and the method is applied to the vehicle 100 in the above embodiment. Specifically, the method may include the following steps.

[0056] Step S310: When the vehicle meets the charging condition, determine the historical charging rate of the battery.

[0057] In this embodiment, the charging condition refers to the condition that the vehicle needs to meet when the battery needs to be supplemented with power from the power battery. For example, the charging condition may include that the battery power value is low, the vehicle's working mode is off mode, etc. Specifically, the R&D personnel can flexibly set the charging condition according to the actual charging situation of the vehicle. When determining that the vehicle meets the charging condition, the center console determines the historical charging rate of the battery.

[0058] As an implementation method, "determining whether the vehicle meets the charging conditions" can be implemented by a functional module or hardware system other than the center console. The center console can receive the judgment result sent by the above functional module or hardware system, and determine whether the vehicle meets the charging conditions based on the judgment result.

[0059] As another implementation, the central console can obtain judgment parameters corresponding to the charging condition (for example, the battery power value, the vehicle's working mode), etc., and determine whether the vehicle meets the charging condition based on the above judgment parameters. Figure 2 In the embodiment shown, the monitoring and data acquisition module can obtain the judgment parameters corresponding to the power replenishment condition, and the logic processing module can determine whether the vehicle meets the power replenishment condition. Specifically, the specific implementation method of how to judge whether the vehicle meets the power replenishment condition is described in detail below in the specification.

[0060] In this embodiment, the historical charging rate refers to the charging rate corresponding to the battery in the historical charging operation. The historical charging rate can be calculated and stored by the central console each time the battery completes the charging operation. When the battery needs to be recharged later, the central console can read the pre-stored relevant data to determine the historical charging rate. Specifically, step S310 and the subsequent steps S320 and S330 can be executed in sequence to complete a charging operation, wherein each charging operation will determine the corresponding charging rate.

[0061] In some possible embodiments, in the Nth power replenishment operation, step S310 may include step S3120.

[0062] Step S3120, when the vehicle meets the charging conditions, if N is greater than 1, the charging rate corresponding to the N-1th charging operation is determined as the historical charging rate of the battery; if N is equal to 1, the null value is determined as the historical charging rate of the battery.

[0063] In this embodiment, if the battery is being recharged for the first time, there is no historical recharge operation. In this case, the central console will determine the null value (Null) as the historical charging rate; if the battery is not being recharged for the first time, the central console will determine the charging rate corresponding to the last (i.e., the N-1th) recharge operation as the historical charging rate of the battery to ensure that the subsequent central console can successfully determine the corresponding recharge voltage based on the historical charging rate.

[0064] In some other possible embodiments, if N is greater than 1, the central console may also determine the average of i charging rates corresponding to the previous i historical charging operations as the historical charging rate. Where i is greater than 1, for example, i may be equal to 2, 3, 5, etc. Therefore, the historical charging rate in this embodiment is determined by combining multiple charging rate values, so that the determined historical charging rate is more accurate and reasonable.

[0065] Step S320: Determine the charging voltage provided to the battery based on the historical charging rate.

[0066] In this embodiment, the charging voltage is negatively correlated with the historical charging rate. That is, the smaller the historical charging rate, the greater the charging voltage. For example, if there is an aging problem inside the battery, the charging rate of the battery will be reduced and the charging time will be longer. Furthermore, during the charging process, since the whole vehicle is powered by high voltage, the network ECU of the whole vehicle is consuming power. In this case, if the charging time is too long, too much power of the high-voltage battery will be consumed, resulting in a problem of reduced vehicle range.

[0067] Therefore, the vehicle in this embodiment will flexibly adjust the charging voltage based on the historical charging rate. For example, when the historical charging rate is low, the vehicle will increase the corresponding value of the charging voltage to shorten the charging time, improve the charging efficiency of the battery, and avoid excessive consumption of the high-voltage battery.

[0068] Specifically, the central console may pre-store a mapping relationship between historical charging rates and charging voltages, which may be a mapping function or a mapping table, which is not specifically limited in this embodiment. The specific method for determining the charging voltage is described in detail below in the specification.

[0069] Step S330: Based on the charging voltage, the storage battery is charged by the power battery.

[0070] In this embodiment, the central console can adjust the voltage converted by the DC-DC converter based on the charging voltage to realize the charging operation of the power battery to the storage battery. Specifically, the logic processing module can send the determined charging voltage to the execution module, and the execution module triggers the high voltage power on the vehicle based on the charging voltage, and the DC-DC converter converts the high voltage power into low voltage power (that is, the charging voltage) and outputs it to charge the storage battery.

[0071] In some possible embodiments, the central console can also determine the charging rate corresponding to the battery in the current charging operation when the battery has finished charging, and store the charge rate to provide data support for subsequent charging operations.

[0072] An embodiment of the present application provides a vehicle control method, which determines the charging voltage provided to the battery based on the historical charging rate corresponding to the battery when the vehicle meets the charging condition; and based on the charging voltage, the battery is charged by the power battery. The charging condition refers to the condition that the vehicle needs to meet when the battery needs to be supplemented with electric energy by the power battery. For example, when the battery power value is low, the high-voltage battery (that is, the power battery) will be triggered to charge the battery to avoid the battery from running out of power, thereby ensuring the normal use of the battery in the future.

[0073] Specifically, the charging voltage provided to the battery is negatively correlated with the historical charging rate. In other words, the smaller the historical charging rate, the larger the charging voltage. For example, if there is an aging problem inside the battery, the charging rate of the battery will be reduced and the charging time will be longer. Therefore, the vehicle in this embodiment will flexibly adjust the charging voltage based on the historical charging rate. For example, when the historical charging rate is low, the vehicle will increase the value corresponding to the charging voltage to shorten the charging time and improve the charging efficiency of the battery.

[0074] See also Figure 4 , which shows a vehicle control method provided by the second embodiment of the present application, which is applied to the vehicle 100 in the above embodiment. In this method, a specific implementation method of how the central console determines whether the vehicle meets the charging condition and a specific method for determining the charging voltage are specifically introduced. Specifically, the method may include the following steps.

[0075] Step S410: When the vehicle meets the charging condition, determine the historical charging rate of the battery.

[0076] Specifically, for the specific implementation of step S410, reference may be made to the relevant introduction in step S310, which will not be described in detail here.

[0077] In this embodiment, step S401 and step S403 may be included before step S410.

[0078] Step S401, obtaining the working mode of the vehicle, the power value of the storage battery and the power value of the power battery.

[0079] In this embodiment, the judgment parameters corresponding to the charging condition include the vehicle's operating mode, the battery's charge value, and the power battery's charge value. As an implementation method, the monitoring and data acquisition module can wake up the vehicle according to a preset time interval, and periodically obtain the vehicle's operating mode, the battery's charge value, and the power battery's charge value, and send the obtained judgment parameters to the logic processing module. Specifically, the preset time interval can be the default value in the monitoring and data acquisition module, and can also be flexibly adjusted by the R&D personnel based on the actual charging situation of the vehicle. For example, the preset time interval can be 0.5s, 1s, 2s, etc.

[0080] Step S403, when the working mode of the vehicle is the off mode and the power value of the storage battery is less than the first power value and the power value of the power battery is greater than the second power value, it is determined that the vehicle meets the power replenishment condition.

[0081] In this embodiment, the charging conditions include: the working mode of the vehicle is the off mode; the power value of the storage battery is less than the first power value; the power value of the power battery is greater than the second power value.

[0082] Among them, the first power value and the second power value can be the default values ​​in the logic processing module, respectively, or can be flexibly adjusted by the R&D personnel based on the actual power replenishment situation of the vehicle. Specifically, when the power value of the battery is less than the first power value, it means that the power value of the battery is low. For example, the first power value can be less than or equal to 80%. Exemplarily, the first power value can be 60%, 70%, 80%, and so on. When the power value of the power battery is greater than the second power value, it means that the power battery has sufficient power. For example, the second power value can be greater than or equal to 85%. Exemplarily, the second power value can be 85%, 90%, 95%, and so on.

[0083] Specifically, the logic processing module determines that the vehicle meets the charging condition when the above charging condition is met. It should be noted that the charging condition of the vehicle may also include: the vehicle speed is 0; all four doors and two lids are closed; the OTA state is non-OTA upgrade mode; the power battery is in a fault-free state, etc. This embodiment does not specifically limit the charging condition of the vehicle.

[0084] In some possible embodiments, the central console controls the vehicle to enter a dormant state when the vehicle does not meet the power replenishment conditions. It is not difficult to understand that when there are multiple power replenishment conditions, the central console controls the vehicle to enter a dormant state when any one of the multiple power replenishment conditions is not met.

[0085] Step S420: Determine the charging voltage provided to the battery based on the historical charging rate.

[0086] In this embodiment, step S420 may include step S4210 and step S4230.

[0087] Step S4210: When the historical charging rate is greater than or equal to the charging rate threshold or the historical charging rate is a null value, determine that the supplementary voltage provided to the battery is a first preset voltage value.

[0088] Step S4230: When the historical charging rate is less than the charging rate threshold, determine that the charging voltage provided to the battery is a second preset voltage value.

[0089] As an implementation method, the charging rate threshold may be a default value in the center console, for example, the charging rate threshold may be less than or equal to 50. Exemplarily, the charging rate threshold may be 50, 40, 35, etc. In addition, the charging rate threshold may also be flexibly set by the R&D personnel according to the amount of electricity that the vehicle ECU will be awakened and consumed synchronously during the actual charging process. This embodiment does not specifically limit the values ​​of the preset temperature and the charging rate threshold.

[0090] In this embodiment, the "first preset voltage value" can be understood as the default charging voltage value in the center console. For example, when the working voltage of the battery is 12V, the first preset voltage value can be greater than or equal to 13V, and less than or equal to 16V. Exemplarily, the first preset voltage value can be 13V, 13.5V, 14V, and so on. Specifically, the second preset voltage value is greater than the first preset voltage value. In other words, when the center console determines that the historical charging rate is less than the charging rate threshold, it will increase the battery's charging voltage and use the second preset voltage value to charge the battery to improve the battery's charging efficiency and shorten the battery's charging time. For example, when the working voltage of the battery is 12V, the second preset voltage value can be greater than or equal to 13V, and less than or equal to 16V. Exemplarily, the second preset voltage value can be 14.5V, 15V, 16V, and so on.

[0091] As an implementation method, the charging rate threshold, the first preset voltage value and the second preset voltage value can be pre-stored in a logic processing module of the central console, and the logic processing module is used to determine whether the historical charging rate is less than the charging rate threshold.

[0092] It is not difficult to understand here that when the historical charging rate is less than the charging rate threshold, it means that the battery used a lower charging rate during the last recharge, and the battery's recharge efficiency is low. In this case, the center console can set a higher recharge voltage to shorten the recharge time and improve the recharge efficiency. On the contrary, when the historical charging rate is greater than or equal to the charging rate threshold or the historical charging rate is a null value, it means that the battery had a good recharge efficiency before, or this is the first time the battery has been recharged (the battery will hardly age). In this case, the center console can use a lower recharge voltage to avoid excessive power loss in the power battery and ensure the vehicle's subsequent cruising range.

[0093] In some possible embodiments, step S4210 may include steps S4212 to S4216.

[0094] Step S4212, when the historical charging rate is greater than or equal to the charging rate threshold or the historical charging rate is a null value, obtaining the temperature of the battery.

[0095] In this embodiment, the temperature of the battery can be obtained by the detection and data acquisition module and sent to the logic processing module. It should be noted here that the temperature of the battery can be regarded as the ambient temperature of the space where the battery is located. When the temperature of the battery is low, if the original charging voltage is used for charging, the battery charging efficiency will be low and the charging time will be long.

[0096] Therefore, the charging voltage in this embodiment will comprehensively consider the temperature and historical charging rate of the battery, so that the determined charging voltage is more accurate and reliable.

[0097] Step S4214: when the temperature of the battery is greater than or equal to the preset temperature, determine that the compensation voltage provided to the battery is a first preset voltage value.

[0098] Step S4216: When the temperature of the battery is lower than a preset temperature, determine that the compensation voltage provided to the battery is a second preset voltage value.

[0099] In this embodiment, the preset temperature may be a default value in the logic processing module. For example, the preset temperature may be less than or equal to 5 degrees. Exemplarily, the preset temperature may be 5 degrees, 2 degrees, 0 degrees, and so on. It is not difficult to understand here that when the temperature of the battery is less than the preset temperature, it means that the ambient temperature of the space where the battery is located is low, resulting in low charging efficiency of the battery. In this case, the center console may set a higher charging voltage to improve the charging efficiency.

[0100] Therefore, the central console in this embodiment comprehensively considers the temperature and historical charging rate of the battery when determining the charging voltage, so that the determined charging voltage can be more accurate and reasonable. While improving the charging efficiency, the charging time can be shortened, thereby avoiding excessive consumption of the high-voltage battery.

[0101] Step S430: Based on the charging voltage, the storage battery is charged by the power battery.

[0102] Specifically, for the specific implementation of step S430, reference may be made to the relevant introduction in step S330, which will not be described in detail here.

[0103] In some possible embodiments, step S440 may be further included after step S430.

[0104] Step S440: When it is determined that the vehicle meets the charging end condition, stop charging the battery.

[0105] In this embodiment, the conditions for ending the charging may include one or more of the following conditions: the vehicle anti-theft system is in a triggered state; any one of the four doors and two covers is in an open state; the vehicle's operating mode is a power-on mode; the power battery's charge value is less than or equal to a second charge value; the power battery is in a fault state; the OTA state is an OTA upgrade mode; the charging duration is greater than or equal to a preset duration; the battery's charge value is greater than or equal to the first charge value.

[0106] Specifically, the monitoring and data acquisition module can obtain the judgment parameters corresponding to the above-mentioned power replenishment termination conditions according to a preset time interval and send them to the logic processing module. The logic processing module stops replenishing the battery when it is determined that any one of the above-mentioned power replenishment termination conditions is satisfied. Exemplarily, the power replenishment termination conditions may include that the power value of the power battery is less than or equal to the second power value and the power value of the storage battery is greater than or equal to the first power value, and the corresponding judgment parameters are the power value of the power battery and the power value of the storage battery.

[0107] In some other possible embodiments, when the logic processing module determines that none of the above-mentioned charging end conditions are met, the logic processing module charges the battery.

[0108] In some possible embodiments, when the logic processing module determines that the vehicle meets the conditions for ending the power replenishment, the execution module may execute operations such as lowering the high voltage to put the entire vehicle into a dormant state.

[0109] An embodiment of the present application provides a vehicle control method, in which when the vehicle is recharging, the recharging voltage is adjusted based on the temperature and historical charging rate of the battery to shorten the recharging time and improve the recharging efficiency. At the same time, it can also avoid excessive power consumption of the high-voltage battery and ensure the vehicle's cruising range.

[0110] See also Figure 5 , which shows a vehicle control method provided by the third embodiment of the present application, which is applied to the vehicle 100 in the above embodiment. In this method, when the battery is finished being recharged, the central console will also generate a prompt message based on the battery parameters of the battery to determine that the battery is in an abnormal working state, so as to promptly remind the user to check or replace the battery, thereby improving the vehicle's endurance and user experience. Specifically, the method may include the following steps.

[0111] Step S510: When the vehicle meets the charging condition, determine the historical charging rate of the battery.

[0112] Step S520: Determine the charging voltage provided to the battery based on the historical charging rate.

[0113] Step S530: Based on the charging voltage, the storage battery is charged by the power battery.

[0114] Step S540, when the battery is finished being charged, the battery parameters of the battery are obtained.

[0115] In this embodiment, the battery parameters of the battery are used to describe the battery state corresponding to the most recent charging operation of the battery. For example, the battery parameters of the battery may include one or more of the actual charging rate, actual battery capacity, and actual capacity ratio of the battery. The actual capacity ratio refers to the ratio between the actual battery capacity and the rated capacity of the battery.

[0116] In some possible embodiments, the center console can obtain the actual charging rate of the battery when the battery has finished charging. The actual charging rate can directly or indirectly reflect the life of the battery and affect the vehicle's cruising range. The actual charging rate is equal to the increased power after the battery has completed charging divided by the total power output of the DC-DC converter. Specifically, the actual charging rate of the battery can be calculated by the following formula.

[0117]

[0118] Where V is the actual charging rate of the battery; I i is the current value of the battery at time i; N is the number of acquisitions of the charging segment, and the acquisition frequency is 1Hz; I DCDCiis the current value output by the DC-DC converter at time i; W is the battery charging efficiency coefficient. When the battery state of charge SOC is less than or equal to 60%, W is 85%; when the battery state of charge SOC is greater than 60% and less than or equal to 80%, W is 90%; when the battery state of charge SOC is greater than 90%, W is 95%.

[0119] In some other possible embodiments, the central console can obtain the actual battery capacity and the actual capacity ratio of the battery when the battery is finished being recharged. Specifically, the actual battery capacity can be calculated using the following formula.

[0120]

[0121] Where, Q is the actual battery capacity of the battery, and its unit is AH; I i is the current value of the battery at time i; N is the number of acquisitions of the charging segment, and the acquisition frequency is 1Hz; SOC 0 is the SOC value corresponding to the start time of charging; SOC N It is the SOC value corresponding to the end time of charging.

[0122] The actual capacity ratio can be calculated by the following formula.

[0123]

[0124] Among them, SOH is the actual capacity ratio of the battery; Q is the actual battery capacity of the battery; Q 额 is the rated capacity of the battery.

[0125] In some other possible embodiments, the central console can obtain the actual charging rate, actual battery capacity and actual capacity ratio of the battery when the battery is finished being recharged. In this embodiment, the central console can subsequently determine whether the battery is in an abnormal working state based on the three battery parameters corresponding to the battery, which can improve the accuracy of detection.

[0126] As an implementation method, the calculation formulas corresponding to the battery parameters can be pre-stored in the data storage and calculation module of the central console. The data storage and calculation module can directly calculate the battery parameters of one or more batteries by reading the corresponding formulas when the battery is finished being recharged, and store the acquired battery parameters in the data storage and calculation module.

[0127] As another implementation, when the battery has finished charging, the central console may first obtain the charging parameters corresponding to the battery in the charging state, and then obtain the battery parameters corresponding to the battery when the battery is determined to be in an abnormal charging state based on the charging parameters, thereby saving data computing resources of the central console. Specifically, step S540 may include step S5410 and step S5430.

[0128] Step S5410, when the battery has finished charging, obtain the battery charging parameters.

[0129] In this embodiment, the battery charging parameters are parameters corresponding to when the battery is in a charging state. For example, the battery charging parameters may include the battery temperature and the charging voltage provided to the battery. As an implementation, the monitoring and data acquisition module of the central console may obtain the battery charging parameters when the battery has finished charging, and send the obtained charging parameters to the logic processing module.

[0130] Step S5430: When it is determined based on the battery charging parameters that the battery is in an abnormal battery charging state, the battery parameters of the battery are obtained.

[0131] In some possible embodiments, the battery recharging parameters may include the recharging voltage provided to the battery. The central console may obtain the battery parameters of the battery when the recharging voltage is a second preset voltage value. For the relevant introduction of the "second preset voltage value", please refer to the relevant introduction in step S4230 in the above embodiment. It is not difficult to understand here that when the battery is recharged using the second preset voltage value (that is, a larger recharging voltage value), it means that the battery may be aged (that is, in an abnormal recharging state). In this case, the central console obtains the battery parameters of the battery to further determine whether it is in an abnormal working state. On the contrary, when the recharging voltage is the first preset voltage value, the central console may indicate that the battery is in a healthy recharging state, and no subsequent steps will be executed, which can save the computing resources of the central console.

[0132] In some other possible embodiments, the battery charging parameters may include the battery temperature and the battery charging voltage provided to the battery. Specifically, step S5430 may include step S5432.

[0133] Step S5432, when the temperature of the battery is greater than or equal to the preset temperature and the compensation voltage is a second preset voltage value, obtaining the battery parameters of the battery.

[0134] In this embodiment, the relevant introduction about the "preset temperature" can refer to the relevant introduction in step S4216 in the above embodiment. Specifically, when the temperature of the battery is greater than or equal to the preset temperature, the battery still uses the second preset voltage value for recharging, which can eliminate the influence of the ambient temperature of the space where the battery is located on the recharging voltage, indicating that the battery has aged. In this case, the central console obtains the battery parameters of the battery to further determine whether it is in an abnormal working state.

[0135] On the contrary, when the temperature of the battery is greater than or equal to the preset temperature and the charging voltage is the first preset voltage value, the central console may not execute subsequent steps, thereby saving computing resources of the central console.

[0136] Step S550: When it is determined based on the battery parameters of the battery that the battery is in an abnormal working state, a prompt message is generated.

[0137] In this embodiment, "abnormal working state" means that the battery is in an unhealthy state or an aged state. As an implementation mode, the center console may generate a prompt message when it is determined that the battery is in an abnormal working state based on the actual charging rate of the battery. As another implementation mode, the center console may generate a prompt message when it is determined that the battery is in an abnormal working state based on the actual battery capacity and the actual capacity ratio of the battery. As yet another implementation mode, the center console may generate a prompt message when it is determined that the battery is in an abnormal working state based on the actual charging rate, the actual battery capacity and the actual capacity ratio of the battery. Specifically, the implementation mode of how the center console determines that the battery is in an abnormal working state is described in detail below in the specification.

[0138] In this embodiment, the prompt information is used to prompt the user to check or replace the battery. As an implementation, when the vehicle's onboard display screen is in working state, the center console can display the prompt information on the vehicle's onboard display screen. As another implementation, the center console can call a push module to send the prompt information to the user's mobile device, for example, it can be pushed to an APP installed on the mobile device, so that the user can receive the prompt information in time.

[0139] An embodiment of the present application provides a method for controlling a vehicle. On the one hand, the method will recharge the battery when the vehicle meets the recharging conditions. For example, when the battery power value is low, the high-voltage battery will be triggered to recharge the battery to avoid the battery from running out of power, thereby ensuring the normal use of the battery in the future. On the other hand, the method will obtain the battery parameters of the battery when the battery has finished recharging. For example, the battery parameters of the battery may be the actual charging rate, the actual battery power, the actual capacity ratio, and the like. Furthermore, when it is determined based on the battery parameters that the battery is in an abnormal working state, a prompt message is generated to prompt the user to check or replace the battery.

[0140] Therefore, after the charging is completed, the vehicle in the embodiment of the present application will determine whether the battery is in a normal working state (i.e., a healthy state) by calculating the battery parameters of the battery, and if the battery is in an abnormal working state, it can generate a prompt message to promptly remind the user to check or replace the battery, so as to improve the vehicle's endurance and user experience.

[0141] See also Figure 6 , which shows a vehicle control method provided by the fourth embodiment of the present application, which is applied to the vehicle 100 in the above embodiment. In this method, the center console determines whether the battery is in an abnormal working state based on the actual charging rate of the battery. Specifically, the method may include the following steps.

[0142] Step S610: When the vehicle meets the charging condition, determine the historical charging rate of the battery.

[0143] Step S620: Determine the charging voltage provided to the battery based on the historical charging rate.

[0144] Step S630: Based on the charging voltage, the storage battery is charged by the power battery.

[0145] Step S640, when the battery is finished being charged, the battery parameters of the battery are obtained.

[0146] In this embodiment, the battery parameters of the storage battery may include an actual charging rate.

[0147] Step S650: When it is determined based on the battery parameters of the battery that the battery is in an abnormal working state, a prompt message is generated.

[0148] In this embodiment, the logic processing module of the central console can determine whether the battery is in an abnormal working state based on the actual charging rate of the battery. Specifically, step S650 can include steps S6510 to S6530.

[0149] Step S6510, when the actual charging rate is less than the charging rate threshold, a plurality of historical charging rates corresponding to a plurality of historical charging operations are obtained.

[0150] In this embodiment, the charging rate threshold may be a default value in the logic processing module, for example, the charging rate threshold may be less than or equal to 50. Exemplarily, the charging rate threshold may be 50, 40, 35, etc. The logic processing module may obtain multiple historical charging rates corresponding to multiple historical charging operations by reading relevant data in the data storage and calculation module when the actual charging rate is less than the charging rate threshold.

[0151] In some possible embodiments, when the actual charging rate is greater than or equal to the charging rate threshold, the central console no longer executes subsequent steps.

[0152] Step S6520, determining the first abnormal number based on multiple historical charging rates.

[0153] In this embodiment, the first abnormal number refers to the number of times that the charging rate is less than the charging rate threshold value among multiple historical charging rates. Exemplarily, a counter may be provided in the logic processing module, and the initial value of the counter is 0. The logic processing module may determine whether each historical charging rate is less than the charging rate threshold value in turn according to the storage moments corresponding to the multiple historical charging rates. If the historical charging rate is less than the charging rate threshold value, the value of the counter is increased by 1; if the historical charging rate is greater than or equal to the charging rate threshold value, the value of the counter is reset to 0, and the final value of the counter is determined as the first abnormal number.

[0154] Step S6530: Generate a prompt message when the first abnormal number is greater than a first preset threshold.

[0155] In this embodiment, the first preset threshold value may be a default value in the logic processing module. For example, the first preset threshold value may be greater than or equal to 2. Exemplarily, the first preset threshold value may be 2, 3, 4, etc. When the number of first abnormalities is greater than the first preset threshold value, the logic processing module indicates that the battery is also in an abnormal working state in multiple historical charging operations. This embodiment makes a comprehensive judgment through multiple charging rate data, which can improve the accuracy of data prediction and reduce the probability of misjudgment events.

[0156] In some possible embodiments, when the first abnormal number is less than or equal to the first preset threshold, the central console no longer executes subsequent steps.

[0157] An embodiment of the present application provides a vehicle control method, in which the center console combines the actual charging rate of the battery and multiple historical charging rates to determine whether the battery is in an abnormal working state, which can improve the accuracy of the judgment of the abnormal working state.

[0158] See also Figure 7 , which shows a vehicle control method provided by the fifth embodiment of the present application, which is applied to the vehicle 100 in the above embodiment. In this method, the center console determines whether the battery is in an abnormal working state based on the actual battery capacity and the actual capacity ratio of the battery. Specifically, the method may include the following steps.

[0159] Step S710: When the vehicle meets the charging condition, determine the historical charging rate of the battery.

[0160] Step S720: Determine the charging voltage provided to the battery based on the historical charging rate.

[0161] Step S730: Based on the charging voltage, the storage battery is charged by the power battery.

[0162] Step S740, when the battery is finished being charged, the battery parameters of the battery are obtained.

[0163] In this embodiment, the battery parameters of the storage battery may include actual battery capacity and actual capacity ratio.

[0164] Step S750: When it is determined based on the battery parameters of the battery that the battery is in an abnormal working state, a prompt message is generated.

[0165] In this embodiment, the logic processing module of the central console may determine whether the battery is in an abnormal working state based on the actual battery capacity and the actual capacity ratio of the battery. Specifically, step S750 may include steps S7510 to S7540.

[0166] Step S7510, when the actual battery capacity is less than the battery capacity threshold and the actual capacity ratio is less than the capacity ratio threshold, a plurality of historical battery capacities and a plurality of historical capacity ratios corresponding to a plurality of historical charging operations are obtained.

[0167] In this embodiment, the battery capacity threshold and the capacity ratio threshold may be default values ​​in the logic processing module, wherein the battery capacity threshold refers to the minimum remaining power that can start the battery. For example, the battery capacity threshold may be less than or equal to 50Ah. Exemplarily, the battery capacity threshold may be 50Ah, 30Ah, 20Ah, and so on. The capacity ratio threshold may be less than or equal to 75%, and exemplary, the capacity ratio threshold may be 75%, 70%, 60%, and so on. The logic processing module may obtain multiple historical battery capacities and multiple historical capacity ratios corresponding to multiple historical power replenishment operations by reading relevant data in the data storage and calculation module when the actual battery capacity is less than the battery capacity threshold and the actual capacity ratio is less than the capacity ratio threshold.

[0168] In some possible embodiments, when the actual battery capacity is greater than or equal to the battery capacity threshold, or the actual capacity ratio is greater than or equal to the capacity ratio threshold, the central console no longer executes subsequent steps.

[0169] Step S7520, determining a second abnormal number based on multiple historical battery capacities.

[0170] In this embodiment, the second abnormal number refers to the number of times that the battery capacity is less than the battery capacity threshold value in a plurality of historical battery capacities. Exemplarily, a counter may be provided in the logic processing module, and the initial value of the counter is 0. The logic processing module may determine whether each historical battery capacity is less than the battery capacity threshold value in turn according to the storage time corresponding to the plurality of historical battery capacities. If the historical battery capacity is less than the battery capacity threshold value, the value of the counter is increased by 1; if the historical battery capacity is greater than or equal to the battery capacity threshold value, the value of the counter is reset to 0, and the final value of the counter is determined as the second abnormal number.

[0171] Step S7530, determining a third abnormal number based on multiple historical capacity ratios.

[0172] In this embodiment, the third abnormal number refers to the number of times that the capacity ratio is less than the capacity ratio threshold value in multiple historical capacity ratios. Exemplarily, a counter may be provided in the logic processing module, and the initial value of the counter is 0. The logic processing module may determine whether each historical capacity ratio is less than the capacity ratio threshold value in turn according to the storage time corresponding to the multiple historical capacity ratios. If the historical capacity ratio is less than the capacity ratio threshold value, the value of the counter is increased by 1; if the historical capacity ratio is greater than or equal to the capacity ratio threshold value, the value of the counter is reset to 0, and the final value of the counter is determined as the third abnormal number.

[0173] It should be noted that this embodiment does not limit the execution order of step S7520 and step S7530. Specifically, step S7520 and step S7530 may be executed simultaneously; step S7520 may be executed before step S7530; step S7520 may be executed later than step S7530.

[0174] Step S7540: When the second abnormal number is greater than the second preset threshold and the third abnormal number is greater than the third preset threshold, generate a prompt message.

[0175] In this embodiment, the second preset threshold and the third preset threshold may be the default values ​​in the logic processing module, for example, the second preset threshold may be greater than or equal to 2. Exemplarily, the second preset threshold may be 2, 3, 4, etc. The third preset threshold may be greater than or equal to 2. Exemplarily, the third preset threshold may be 2, 3, 4, etc. When the number of second abnormalities is greater than the second preset threshold and the number of third abnormalities is greater than the third preset threshold, the logic processing module indicates that the battery is also in an abnormal working state in multiple historical power replenishment operations. This embodiment makes a comprehensive judgment through multiple capacity ratio data and multiple battery capacity data, which can improve the accuracy of data prediction and reduce the probability of misjudgment events.

[0176] In some possible embodiments, when the second abnormal number is less than or equal to the second preset threshold, or the third abnormal number is less than or equal to the third preset threshold, the central console no longer executes subsequent steps.

[0177] In some other possible embodiments, the battery parameters of the storage battery may also include an actual charging rate. Specifically, step S750 may also include steps C1 to C4.

[0178] Step C1, when the actual charging rate is less than the charging rate threshold, a plurality of historical charging rates corresponding to a plurality of historical charging operations are obtained.

[0179] Step C2, determining the first abnormal number based on multiple historical charging rates.

[0180] Step C3: generating a prompt message when the first abnormal number is greater than a first preset threshold.

[0181] Step C4, when the actual charging rate is greater than or equal to the charging rate threshold, or the first abnormal number is less than or equal to the first preset threshold, execute steps S7510 to S7540.

[0182] Specifically, for the specific implementation methods of steps C1 to C3, reference may be made to the relevant introductions in steps S6510 to S6530, which will not be described in detail here.

[0183] An embodiment of the present application provides a control method for a vehicle. In this method, the center console combines the actual capacity ratio of the battery, multiple historical capacity ratios, the actual battery capacity, and multiple historical battery capacities to determine whether the battery is in an abnormal working state, which can improve the accuracy of judging the abnormal working state.

[0184] Please refer to Figure 8 , which shows a control method for a vehicle provided by the sixth embodiment of the present application. This method is applied to the vehicle 100 in the above embodiment. Specifically, this method may include the following steps.

[0185] Step A1, read the vehicle data.

[0186] In this embodiment, the monitoring and data acquisition module can wake up the vehicle according to a preset time interval and periodically read relevant vehicle data. Specifically, the vehicle data may include the temperature of the battery, the charging rate, and so on.

[0187] Step A2, determine whether the charging condition is met. If yes, execute step A3; if not, execute step A8.

[0188] In this embodiment, the logic processing module is used to determine whether the charging condition of the battery is met. Specifically, for the relevant introduction of step A2, reference can be made to step S401 and step S403 in the above embodiment.

[0189] Step A3, determine the DCDC output voltage.

[0190] In this embodiment, the logic processing module is used to determine the DCDC output voltage. Specifically, step A3 may include steps A31 to A35.

[0191] Step A31, determine whether the temperature of the battery is less than T1. If yes, execute A32; if not, execute A33.

[0192] Step A32, set the DCDC output voltage to U2.

[0193] Step A33, determine whether the charging rate of the battery is less than V1. If yes, execute A32; if not, execute A34.

[0194] Step A34, set the DCDC output voltage to U1.

[0195] Among them, 13.5V < U1 < U2 < 16V. Specifically, for the relevant introduction of step A3, reference can be made to step S420 in the above embodiment. Among them, U2 corresponds to the second preset voltage value, U1 corresponds to the first preset voltage value, T1 corresponds to the preset temperature, V1 corresponds to the charging rate threshold, and the DCDC output voltage corresponds to the charging voltage provided to the battery.

[0196] Step A35, DCDC outputs voltage and battery charging begins.

[0197] In this embodiment, the execution module is used to set the voltage according to the DCDC, trigger the high voltage electricity on the whole vehicle, the DCDC outputs the low voltage electricity, and the battery charging starts.

[0198] Step A4, whether the charging end condition is met. If yes, execute step A5; if not, continue charging and read the charging segment related data in real time.

[0199] In this embodiment, the logic processing module is used to determine in real time whether the charging end condition is met. Specifically, the relevant introduction of step A4 can refer to step S440 in the above embodiment.

[0200] Step A5: Is the temperature of the battery greater than or equal to T1, and is the DCDC output voltage set to U2? If yes, go to step A6; if no, go to step A8.

[0201] In this embodiment, the logic processing module is used to determine whether the temperature of the battery is greater than or equal to T1, and whether the DCDC output voltage is set to U2. Specifically, the relevant introduction of step A5 can refer to step S5430 in the above embodiment.

[0202] Step A6, calculating the battery capacity, SOH and charging rate.

[0203] In this embodiment, the data storage and calculation module is used to calculate the battery capacity, SOH and charging rate. Specifically, the relevant introduction of step A6 can refer to step S540 in the above embodiment.

[0204] Step A7, determining battery abnormality or SMS reminder.

[0205] Specifically, step A7 may include steps A71 to A73.

[0206] Step A71, whether the charging rate is less than V1, and whether the first abnormal number is greater than M1. If so, execute step A72; if not, execute step A73.

[0207] Step A72, sending a reminder message for checking or replacing the battery.

[0208] Step A73: Is the battery capacity less than Q1, is the SOH less than SOH1, is the second abnormal number greater than M2, and is the third abnormal number greater than M3? If yes, execute step A72; if no, execute step A8.

[0209] In this embodiment, the logic processing module is used to determine battery abnormality or SMS reminder. Specifically, the relevant introduction of step A7 can refer to step S650 and step S750 in the above embodiment. Among them, V1 corresponds to the charging rate threshold, M1 corresponds to the first preset threshold, Q1 corresponds to the battery capacity threshold, SOH1 corresponds to the capacity ratio threshold, M2 corresponds to the second preset threshold, and M3 corresponds to the third preset threshold.

[0210] Step A8: After the charging is completed, the vehicle enters sleep mode.

[0211] In this embodiment, after the intelligent power replenishment of the logic processing module is completed, the execution module performs operations such as high voltage power reduction, and the entire vehicle enters sleep mode.

[0212] See also Fig. 9 , which shows a control device 900 for a vehicle provided in an embodiment of the present application. The vehicle includes a power battery and a storage battery, wherein the voltage of the power battery is greater than the voltage of the storage battery. The device 900 may include a first determination module 910, a second determination module 920, and a power replenishment module 930. The first determination module 910 is used to determine the historical charging rate of the storage battery when the vehicle meets the power replenishment condition; wherein the power replenishment condition refers to the condition that the vehicle needs to meet when the storage battery needs to replenish electrical energy through the power battery. The second determination module 920 is used to determine the power replenishment voltage provided to the storage battery based on the historical charging rate; wherein the power replenishment voltage and the historical charging rate are negatively correlated. The power replenishment module 930 is used to replenish the storage battery through the power battery based on the power replenishment voltage.

[0213] Among them, in some possible embodiments, the second determination module 920 is specifically used to determine that the compensation voltage provided to the battery is a first preset voltage value when the historical charging rate is greater than or equal to the charging rate threshold or the historical charging rate is a null value; when the historical charging rate is less than the charging rate threshold, determine that the compensation voltage provided to the battery is a second preset voltage value; the second preset voltage value is greater than the first preset voltage value.

[0214] Among them, in some possible embodiments, the second determination module 920 is specifically used to obtain the temperature of the battery when the historical charging rate is greater than or equal to the charging rate threshold or the historical charging rate is an empty value; when the temperature of the battery is greater than or equal to the preset temperature, determine that the compensation voltage provided to the battery is a first preset voltage value; when the temperature of the battery is less than the preset temperature, determine that the compensation voltage provided to the battery is a second preset voltage value.

[0215] Among them, in some possible embodiments, in the Nth charging operation, the first determination module 910 is specifically used to, when the vehicle meets the charging conditions, if N is greater than 1, determine the charging rate corresponding to the N-1th charging operation as the historical charging rate of the battery; if N is equal to 1, determine the null value as the historical charging rate of the battery.

[0216] In some possible embodiments, the device 900 may also include a battery parameter acquisition module (not shown in the figure) and a prompt module (not shown in the figure). The battery parameter acquisition module is used to acquire the battery parameters of the battery when the battery has finished charging; the battery parameters of the battery are used to describe the battery state corresponding to the battery in the most recent charging operation. The prompt module is used to generate prompt information when it is determined that the battery is in an abnormal working state based on the battery parameters of the battery; the prompt information is used to prompt the user to check or replace the battery.

[0217] Among them, in some possible embodiments, the battery parameter acquisition module is specifically used to obtain the battery temperature and the charging voltage provided to the battery when the battery finishes charging; and to obtain the battery parameters of the battery when the battery temperature is greater than or equal to the preset temperature and the charging voltage is a second preset voltage value.

[0218] Among them, in some possible embodiments, the battery parameters of the storage battery include an actual charging rate. The prompt module is specifically used to obtain multiple historical charging rates corresponding to multiple historical charging operations when the actual charging rate is less than the charging rate threshold; based on the multiple historical charging rates, determine the first abnormal number of times; wherein the first abnormal number of times refers to the number of times that the charging rate is continuously less than the charging rate threshold among the multiple historical charging rates; and generate a prompt message when the first abnormal number of times is greater than the first preset threshold.

[0219] Among them, in some possible embodiments, the battery parameters of the battery include actual battery capacity and actual capacity ratio, and the actual capacity ratio refers to the ratio between the actual battery capacity and the rated capacity of the battery. The prompt module is specifically used to obtain multiple historical battery capacities and multiple historical capacity ratios corresponding to multiple historical power replenishment operations when the actual battery capacity is less than the battery capacity threshold and the actual capacity ratio is less than the capacity ratio threshold; based on multiple historical battery capacities, determine the second abnormal number of times; wherein the second abnormal number of times refers to the number of times in which the battery capacity is less than the battery capacity threshold in multiple historical battery capacities; based on multiple historical capacity ratios, determine the third abnormal number of times; wherein the third abnormal number of times refers to the number of times in which the capacity ratio is less than the capacity ratio threshold in multiple historical capacity ratios; when the second abnormal number of times is greater than the second preset threshold and the third abnormal number of times is greater than the third preset threshold, generate a prompt message.

[0220] Among them, in some possible embodiments, the control device 900 may also include a parameter acquisition module and a condition determination module (both not shown in the figure). The first determination module 910 is used to obtain the working mode of the vehicle, the power value of the battery, and the power value of the power battery before recharging the battery when the vehicle meets the recharging condition. The condition determination module is used to determine that the vehicle meets the recharging condition when the working mode of the vehicle is the off mode and the power value of the battery is less than the first power value and the power value of the power battery is greater than the second power value.

[0221] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the above-described devices and modules can refer to the corresponding processes in the aforementioned method embodiments, and will not be repeated here.

[0222] In several embodiments provided in the present application, the coupling between modules may be electrical, mechanical or other forms of coupling.

[0223] In addition, each functional module in each embodiment of the present application can be integrated into a control module, or each module can exist physically separately, or two or more modules can be integrated into one module. The above integrated modules can be implemented in the form of hardware or software functional modules.

[0224] An embodiment of the present application provides a vehicle control device, which determines the recharging voltage provided to the battery based on the historical charging rate corresponding to the battery when the vehicle meets the recharging conditions; and based on the recharging voltage, the battery is recharged through the power battery. The recharging conditions refer to the conditions that the vehicle needs to meet when the battery needs to be recharged by the power battery. For example, when the battery power value is low, the high-voltage battery (that is, the power battery) will be triggered to recharge the battery to avoid the battery from running out of power, thereby ensuring the normal use of the battery in the future.

[0225] Specifically, the charging voltage provided to the battery is negatively correlated with the historical charging rate. In other words, the smaller the historical charging rate, the larger the charging voltage. For example, if there is an aging problem inside the battery, the charging rate of the battery will be reduced and the charging time will be longer. Therefore, the vehicle in this embodiment will flexibly adjust the charging voltage based on the historical charging rate. For example, when the historical charging rate is low, the vehicle will increase the value corresponding to the charging voltage to shorten the charging time and improve the charging efficiency of the battery.

[0226] See also Fig.10, which shows that the embodiment of the present application further provides a vehicle 1000, which may include a storage battery 1010, a power battery 1020, one or more processors 1030, a memory 1040, and one or more applications. Among them, the voltage of the power battery 1020 is greater than the voltage of the storage battery 1010. For the specific implementation of the storage battery 1010 and the power battery 1020, please refer to the relevant introduction in the above application environment embodiment, which will not be repeated here.

[0227] One or more application programs are stored in the memory 1040 and configured to be executed by the one or more processors 1030 , and the one or more application programs are configured to execute the methods described in the above embodiments.

[0228] The processor 1030 may include one or more processing cores. The processor 1030 uses various interfaces and lines to connect various parts within the entire battery management system, and executes various functions and processes data of the battery management system by running or executing instructions, programs, code sets or instruction sets stored in the memory 1040, and calling data stored in the memory 1040. Optionally, the processor 1030 can be implemented in at least one hardware form of digital signal processing (DSP), field programmable gate array (FPGA), and programmable logic array (PLA). The processor 1030 can integrate one or more combinations of a central processing unit 1030 (CPU), a graphics processing unit 1030 (GPU), and a modem. Among them, the CPU mainly processes the operating system, user interface, and application programs; the GPU is responsible for rendering and drawing display content; and the modem is used to process wireless communications. It can be understood that the above-mentioned modem may not be integrated into the processor 1030, but may be implemented separately through a communication chip.

[0229] The memory 1040 may include a random access memory 1040 (Random Access Memory, RAM), and may also include a read-only memory 1040 (Read-Only Memory, ROM). The memory 1040 may be used to store instructions, programs, codes, code sets, or instruction sets. The memory 1040 may include a program storage area and a data storage area, wherein the program storage area may store instructions for implementing an operating system, instructions for implementing at least one function (e.g., a touch function, a sound playback function, an image playback function, etc.), instructions for implementing the above-mentioned various method embodiments, etc. The data storage area may also store data created by the electronic device during use (e.g., a phone book, audio and video data, chat record data), etc.

[0230] An embodiment of the present application further provides a computer-readable storage medium, in which computer program instructions are stored. The computer program instructions can be called by a processor to execute the method described in the above embodiment.

[0231] The computer-readable storage medium may be, for example, a flash memory, an electrically erasable programmable read-only memory (EEPROM), an electrically programmable read-only memory (EPROM), a hard disk, or a read-only memory (ROM). Optionally, the computer-readable storage medium includes a non-transitory computer-readable storage medium. The computer-readable storage medium has storage space for computer program instructions for executing any method step in the above method. These computer program instructions can be read from one or more computer program products or can be written into one or more computer program products.

[0232] The above are only preferred embodiments of the present application, and are not intended to limit the present application in any form. Although the present application has been disclosed as above with preferred embodiments, it is not intended to limit the present application. Any technical personnel in the field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present application. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present application without departing from the content of the technical solution of the present application are still within the scope of the technical solution of the present application.

Claims

1. A vehicle control method, characterized in that: The vehicle includes a power battery and a storage battery, the voltage of the power battery is greater than the voltage of the storage battery, and the method includes: Step S310, when the vehicle meets the power replenishment condition, determining the historical charging rate of the battery; wherein the power replenishment condition refers to the condition that the vehicle needs to meet when the battery needs to be supplemented with electric energy through the power battery; Step S320, determining a supplementary voltage provided to the battery based on the historical charging rate; wherein the supplementary voltage and the historical charging rate are negatively correlated; Step S330: Based on the supplementary voltage, the storage battery is supplemented with electricity by the power battery.

2. The method according to claim 1, characterized in that The step of determining the charging voltage provided to the battery based on the historical charging rate includes: When the historical charging rate is greater than or equal to the charging rate threshold or the historical charging rate is a null value, determining that the supplementary power voltage provided to the battery is a first preset voltage value; When the historical charging rate is less than the charging rate threshold, the supplementary voltage provided to the battery is determined to be a second preset voltage value; and the second preset voltage value is greater than the first preset voltage value.

3. The method according to claim 2, characterized in that When the historical charging rate is greater than or equal to the charging rate threshold or the historical charging rate is a null value, determining that the supplementary power voltage provided to the battery is a first preset voltage value comprises: When the historical charging rate is greater than or equal to a charging rate threshold or the historical charging rate is a null value, acquiring the temperature of the battery; When the temperature of the storage battery is greater than or equal to a preset temperature, determining that the compensation voltage provided to the storage battery is the first preset voltage value; When the temperature of the storage battery is lower than the preset temperature, the compensation voltage provided to the storage battery is determined to be the second preset voltage value.

4. The method according to claim 1, characterized in that: The step S310, the step S320 and the step S330 are sequentially performed to complete a charging operation, wherein each charging operation determines a corresponding charging rate; in the Nth charging operation, when the vehicle meets the charging condition, determining the historical charging rate of the battery includes: When the vehicle meets the charging condition, if N is greater than 1, the charging rate corresponding to the N-1th charging operation is determined as the historical charging rate of the battery; if N is equal to 1, the null value is determined as the historical charging rate of the battery.

5. The method according to any one of claims 1 to 4, characterized in that: The method further comprises: When the battery has finished charging, obtaining the battery parameters of the battery; wherein the battery parameters of the battery are used to describe the battery state corresponding to the most recent charging operation of the battery; When it is determined based on the battery parameters of the battery that the battery is in an abnormal working state, a prompt message is generated; wherein the prompt message is used to prompt a user to check or replace the battery.

6. The method according to claim 5, characterized in that When the battery is finished being charged, obtaining the battery parameters of the battery includes: When the battery has finished charging, obtaining the temperature of the battery and the charging voltage provided to the battery; When the temperature of the storage battery is greater than or equal to a preset temperature and the compensation voltage is a second preset voltage value, a battery parameter of the storage battery is obtained.

7. The method according to claim 5, characterized in that The battery parameters of the battery include an actual charging rate, and when it is determined based on the battery parameters of the battery that the battery is in an abnormal working state, generating prompt information includes: When the actual charging rate is less than the charging rate threshold, obtaining multiple historical charging rates corresponding to multiple historical charging operations; Based on the multiple historical charging rates, determining a first abnormal number of times; wherein the first abnormal number of times refers to the number of times that the charging rate is continuously less than the charging rate threshold value among the multiple historical charging rates; When the first abnormal number is greater than a first preset threshold, the prompt information is generated.

8. The method according to claim 5, characterized in that The battery parameters of the battery include actual battery capacity and actual capacity ratio, wherein the actual capacity ratio refers to the ratio between the actual battery capacity and the rated capacity of the battery; The step of generating prompt information when it is determined based on the battery parameters of the battery that the battery is in an abnormal working state comprises: When the actual battery capacity is less than a battery capacity threshold and the actual capacity ratio is less than a capacity ratio threshold, acquiring a plurality of historical battery capacities and a plurality of historical capacity ratios corresponding to a plurality of historical charging operations; Based on the multiple historical battery capacities, determining a second abnormal number of times; wherein the second abnormal number of times refers to the number of times that the battery capacity is continuously less than the battery capacity threshold value among the multiple historical battery capacities; Based on the multiple historical capacity ratios, determining a third abnormal number of times; wherein the third abnormal number of times refers to the number of times that the capacity ratio is continuously less than the capacity ratio threshold value in the multiple historical capacity ratios; When the second abnormal number is greater than a second preset threshold and the third abnormal number is greater than a third preset threshold, the prompt information is generated.

9. The method according to any one of claims 1 to 4, characterized in that: Before determining the historical charging rate of the battery when the vehicle meets the charging condition, the method further includes: Acquiring the working mode of the vehicle, the power value of the storage battery and the power value of the power battery; When the working mode of the vehicle is the off mode and the power value of the storage battery is less than the first power value and the power value of the power battery is greater than the second power value, it is determined that the vehicle meets the power replenishment condition.

10. A vehicle control device, characterized in that: The vehicle comprises a power battery and a storage battery, the voltage of the power battery is greater than the voltage of the storage battery, and the device comprises: A first determination module is used to determine the historical charging rate of the battery when the vehicle meets the power replenishment condition; wherein the power replenishment condition refers to the condition that the vehicle needs to meet when the battery needs to be supplemented with electric energy through the power battery; A second determination module is used to determine a power-replenishing voltage provided to the battery based on the historical charging rate; wherein the power-replenishing voltage and the historical charging rate are negatively correlated; and A charging module is used to charge the storage battery through the power battery based on the charging voltage.

11. A vehicle, characterized in that: include: Batteries; a power battery, wherein the voltage of the power battery is greater than the voltage of the storage battery; one or more processors; Memory; as well as One or more applications, wherein one or more of the applications are stored in the memory and configured to be executed by one or more of the processors, and configured to execute the method according to any one of claims 1 to 9.

12. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer program instructions, and the computer program instructions can be called by a processor to execute the method according to any one of claims 1 to 9.

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