Battery charging method, system, device, vehicle, electronic device and storage medium

Abstract

The present application relates to a battery charging method, system, device, vehicle, electronic device, and storage medium, and relates to the field of vehicle technology. The method comprises: receiving operating information of a low-voltage device of a vehicle and the current state of the vehicle, the low-voltage device including a low-voltage battery and a DC conversion device; determining whether the low-voltage battery needs to be charged based on the operating information of the low-voltage device and the current state of the vehicle; and, if it is determined that the low-voltage battery needs to be charged, sending a high-voltage power-on instruction to the vehicle so that the vehicle charges the low-voltage battery through the DC conversion device, thereby reasonably charging the low-voltage battery and avoiding high-voltage energy waste.

Description

Technical Field

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

[0002] With the advancement of intelligent vehicles, the number of electrical devices such as sensors, actuators, and controllers has increased dramatically. Currently, new energy vehicles primarily rely on low-voltage batteries to provide low-voltage power to various onboard controllers, sensors, and actuators. However, this approach can easily lead to low-voltage battery overload, impacting normal vehicle operation.

[0003] Currently, to address the issue of low-voltage battery recharging, a recharge time is calculated based on the low-voltage battery voltage and temperature information, and the low-voltage battery is recharged at that time. While this solution reduces vehicle costs to a certain extent, it still has significant limitations. Specifically, it requires extensive testing and calibration to optimize the recharge time calculation strategy, which increases R&D costs and time. Furthermore, due to the limited accuracy of the recharge time calculation, the timing of recharge may be inaccurate, which in turn increases the vehicle's high-voltage energy consumption and results in energy waste. Summary of the Invention

[0004] One of the purposes of the present application is to provide a battery charging method, system, device, vehicle, electronic device and storage medium that can reasonably charge low-voltage batteries and avoid high-voltage energy waste.

[0005] In order to achieve the above objectives, the technical solutions adopted in this application are as follows:

[0006] According to a first aspect of the present application, a battery charging method is provided, applied to a service end, the method comprising: receiving operating information from a vehicle's low-voltage equipment and the vehicle's current state; the low-voltage equipment comprises a low-voltage battery and a DC converter. Based on the operating information of the low-voltage equipment and the vehicle's current state, determining whether the low-voltage battery needs to be charged. If it is determined that the low-voltage battery needs to be charged, sending a high-voltage power-on command to the vehicle, so that the vehicle charges the low-voltage battery via the DC converter.

[0007] Based on the above technical means, this application can combine the operating information of the low-voltage equipment and the current status of the vehicle to determine whether the low-voltage battery needs to be charged, rather than charging blindly, making the charging control more rational and precise, thus avoiding unnecessary charging operations, optimizing charging timing and energy utilization efficiency, and extending the service life of the low-voltage battery. In addition, when it is determined that the low-voltage battery needs to be charged, a high-voltage power-on instruction is sent to the vehicle, so that the vehicle charges the low-voltage battery through the DC conversion equipment, which rationally utilizes the vehicle's high-voltage system resources, while reducing manual intervention and improving user experience.

[0008] In one possible approach, determining whether the low-voltage battery needs to be charged is based on the operating information of the low-voltage equipment and the current state of the vehicle, including: determining whether the low-voltage battery needs to be charged based on the current state of the vehicle and the energy information of the low-voltage battery; the energy information of the low-voltage battery includes the remaining discharge time of the low-voltage battery and / or the voltage of the low-voltage battery.

[0009] Based on the above technical means, this application can accurately determine the charging requirements of the low-voltage battery by comprehensively considering the current status of the vehicle and the energy information of the low-voltage battery. In this way, the high-voltage power-on command can be triggered only when the energy information of the low-voltage battery and the vehicle status meet the conditions, thereby avoiding vehicle energy waste.

[0010] In one possible approach, based on the current state of the vehicle and the energy information of the low-voltage battery, determining whether the low-voltage battery needs to be charged includes: when the current state of the vehicle is an awake state, if the voltage of the low-voltage battery is less than or equal to a voltage threshold, and / or the remaining discharge time of the low-voltage battery is less than or equal to a discharge time threshold, determining that the low-voltage battery needs to be charged. If the voltage of the low-voltage battery is greater than the voltage threshold, and / or the remaining discharge time of the low-voltage battery is greater than the discharge time threshold, determining that the low-voltage battery does not need to be charged.

[0011] According to the above technical means, the present application can charge the low-voltage battery in time when the voltage is too low or the remaining discharge time is insufficient, thereby ensuring the normal operation of the low-voltage battery and preventing power failure.

[0012] In one possible approach, based on the current state of the vehicle and the energy information of the low-voltage battery, determining whether the low-voltage battery needs to be charged includes: when the current state of the vehicle is a dormant state, if the remaining discharge time of the low-voltage battery is less than or equal to a discharge time threshold, determining that the low-voltage battery needs to be charged. If the remaining discharge time of the low-voltage battery is greater than the discharge time threshold, determining that the low-voltage battery does not need to be charged.

[0013] In one possible embodiment, the method further includes obtaining a target energy consumption compensation parameter corresponding to the voltage of the low-voltage battery and the current ambient temperature of the vehicle, and determining a remaining discharge time of the low-voltage battery based on operating information of the low-voltage equipment, the current operating state of the vehicle, and the target energy consumption compensation parameter.

[0014] Based on the above technical means, this application fully considers the impact of environmental factors and the battery's own state on energy consumption by obtaining target energy consumption compensation parameters corresponding to the low-voltage battery voltage and the vehicle's current ambient temperature. On this basis, combined with the operating information of the low-voltage equipment and the current operating status of the vehicle, the accuracy of the remaining discharge time estimation can be improved.

[0015] In one possible approach, the low-voltage equipment also includes low-voltage electrical equipment. Based on this, the remaining discharge time of the low-voltage battery is determined based on the operating information of the low-voltage equipment, the current operating status of the vehicle, and the target energy consumption compensation parameter. This includes determining the current remaining energy of the low-voltage battery based on the voltage of the low-voltage battery, the output power and operating status of the DC converter equipment, the energy consumption power of the low-voltage electrical equipment, and the target energy consumption compensation parameter. The remaining discharge time of the low-voltage battery is determined based on the current operating status of the vehicle and the current remaining energy of the low-voltage battery.

[0016] Based on the above technical means, this application can more accurately determine the current remaining energy of the low-voltage battery by comprehensively considering key factors such as the voltage of the low-voltage battery, the output power and operating status of the DC conversion equipment, the energy consumption power of the low-voltage electrical equipment, and the target energy consumption compensation parameters, providing a reliable data foundation for subsequent system management and decision-making. In addition, combining the current state of the vehicle with the accurately calculated current remaining energy of the low-voltage battery can derive a remaining discharge time that is more in line with actual conditions.

[0017] In one possible approach, the remaining discharge time of the low-voltage battery is determined based on the current operating state of the vehicle and the current remaining energy of the low-voltage battery, including: when the current state of the vehicle is awake, determining the target energy consumption power of the low-voltage electrical equipment based on the energy consumption power of the low-voltage electrical equipment and the target energy consumption compensation parameter. The remaining discharge time of the low-voltage battery is determined based on the current remaining energy of the low-voltage battery and the target energy consumption power of the low-voltage electrical equipment.

[0018] In one possible approach, the remaining discharge time of the low-voltage battery is determined based on the vehicle's current operating state and the current remaining energy of the low-voltage battery, including: when the vehicle's current state is a dormant state, determining the remaining energy of the low-voltage battery when the vehicle enters the dormant state and the remaining energy after exiting the dormant state. Based on the remaining energy of the low-voltage battery when the vehicle enters the dormant state and the remaining energy after exiting the dormant state, the dark current energy consumption power of the low-voltage battery is determined; dark current energy consumption power refers to the current consumption of the low-voltage battery after the vehicle enters the dormant state. Based on the dark current energy consumption power and the current remaining energy of the low-voltage battery, the remaining discharge time of the low-voltage battery is determined.

[0019] Based on the above technical means, this application can more accurately evaluate the energy loss of the low-voltage battery during sleep by determining the remaining energy of the low-voltage battery when the vehicle enters and exits sleep mode, and further calculating the dark current energy consumption power. This is of great significance for optimizing the vehicle's electrical system design and reducing energy consumption during sleep mode.

[0020] In one possible embodiment, the method further includes determining multiple dark current energy consumptions of the low-voltage battery within a first preset time period; the dark current energy consumption refers to the energy consumed by the low-voltage battery after the vehicle enters a dormant state. If a target number of dark current energy consumptions among the multiple dark current energy consumptions is greater than a first threshold, outputting a dark current abnormality message; and the target dark current energy consumption is greater than the energy consumption threshold.

[0021] Based on the above technical means, the present application can promptly detect whether a low-voltage battery has abnormal power consumption by determining multiple dark current energy consumption powers of the low-voltage battery within a first preset time period and comparing it with the energy consumption threshold. When the number of dark current energy consumption powers greater than the energy consumption threshold is greater than the first threshold, a dark current abnormality message is output, allowing the vehicle user or maintenance personnel to quickly know the abnormal battery condition so that appropriate measures can be taken to avoid problems such as the vehicle being unable to start normally or battery damage due to excessive battery power consumption.

[0022] In one possible embodiment, the method further includes: obtaining multiple charge and discharge parameters corresponding to the voltage of the low-voltage battery and the ambient temperature of the vehicle within a second preset time period; the charge and discharge parameters are used to assess the life span of the low-voltage battery. If the number of target charge and discharge parameters among the multiple charge and discharge parameters exceeds a second threshold, a low-voltage battery health warning message is output; and if the value of the target charge and discharge parameter is less than a discharge parameter threshold.

[0023] According to the above technical means, the present application can comprehensively and accurately evaluate the actual life status of the battery based on the charge and discharge parameters, and can extend the battery life by discovering battery health problems in advance and taking corresponding measures.

[0024] According to the second aspect provided by the present application, a battery charging method is provided, which is applied to a vehicle. The method includes: sending operating information of a low-voltage device and the current state of the vehicle to a service end, so that the service end determines whether it is necessary to charge the low-voltage battery based on the operating information of the low-voltage device and the current state of the vehicle; the low-voltage device includes a low-voltage battery and a DC conversion device. Receiving a high-voltage power-on instruction sent by the service end; the high-voltage power-on instruction is sent by the service end when it determines that the low-voltage battery needs to be charged. In response to the high-voltage power-on instruction, the low-voltage battery is charged through the DC conversion device.

[0025] Based on the above technical means, this application can send the operating information of the low-voltage equipment and the current status of the vehicle to the server, allowing the server to comprehensively determine whether the low-voltage battery needs to be charged based on multiple factors. When the server determines that the low-voltage battery needs to be charged and sends a high-voltage power-on command, the vehicle can respond to the high-voltage power-on command and charge the low-voltage battery through the DC conversion device. This can effectively ensure that the energy level of the low-voltage battery is at an appropriate level and ensure the stable operation of the vehicle's electrical system.

[0026] In one possible embodiment, the method further includes: if communication with the server is detected to be unavailable, determining whether the low-voltage battery needs to be charged based on the operating information of the low-voltage device and the current state of the vehicle. If it is determined that the low-voltage battery needs to be charged, charging the low-voltage battery using the DC conversion device.

[0027] Based on the above technical means, this application can, when detecting that it is unable to communicate with the server, still independently determine whether the low-voltage battery needs to be charged based on the operating information of its own low-voltage equipment and the current status of the vehicle. This allows the vehicle to ensure the normal operation of the charging function in the event of a communication failure, avoiding the situation where the low-voltage battery cannot be charged due to a lack of communication with the server, and ensuring the autonomy and stability of the vehicle's energy supply.

[0028] In one possible approach, determining whether the low-voltage battery needs to be charged is based on the operating information of the low-voltage equipment and the current state of the vehicle, including: determining whether the low-voltage battery needs to be charged based on the current state of the vehicle and the energy information of the low-voltage battery; the energy information of the low-voltage battery includes the remaining discharge time of the low-voltage battery and / or the voltage of the low-voltage battery.

[0029] In one possible approach, based on the current state of the vehicle and the energy information of the low-voltage battery, determining whether the low-voltage battery needs to be charged includes: when the current state of the vehicle is an awake state, if the voltage of the low-voltage battery is less than or equal to a voltage threshold, and / or the remaining discharge time of the low-voltage battery is less than or equal to a discharge time threshold, determining that the low-voltage battery needs to be charged. If the voltage of the low-voltage battery is greater than the voltage threshold, and / or the remaining discharge time of the low-voltage battery is greater than the discharge time threshold, determining that the low-voltage battery does not need to be charged.

[0030] In one possible approach, based on the current state of the vehicle and the energy information of the low-voltage battery, determining whether the low-voltage battery needs to be charged includes: when the current state of the vehicle is a dormant state, if the remaining discharge time of the low-voltage battery is less than or equal to a discharge time threshold, determining that the low-voltage battery needs to be charged. If the remaining discharge time of the low-voltage battery is greater than the discharge time threshold, determining that the low-voltage battery does not need to be charged.

[0031] In one possible embodiment, the low-voltage equipment further comprises a low-voltage electrical equipment. On this basis, the method further comprises: determining the energy consumption power of the low-voltage electrical equipment based on the current and voltage of the low-voltage electrical equipment.

[0032] According to a third aspect provided by the present application, a battery charging system is provided, which includes a vehicle and a service end.

[0033] Among them, the server is used to execute the method of the above-mentioned first aspect and any possible implementation method thereof, and the vehicle is used to execute the method of the above-mentioned second aspect and any possible implementation method thereof.

[0034] According to the fourth aspect provided by the present application, a battery charging device is provided, which is applied to a service end, and the device includes: a communication unit and a determination unit. The communication unit is used to receive operating information of the low-voltage equipment of the vehicle and the current state of the vehicle; the low-voltage equipment includes a low-voltage battery and a DC conversion device. The determination unit is used to determine whether the low-voltage battery needs to be charged based on the operating information of the low-voltage equipment and the current state of the vehicle. The communication unit is also used to send a high-voltage power-on instruction to the vehicle when it is determined that the low-voltage battery needs to be charged, so that the vehicle charges the low-voltage battery through the DC conversion device.

[0035] In one possible manner, the determination unit is further configured to determine whether the low-voltage battery needs to be charged based on the current state of the vehicle and energy information of the low-voltage battery.

[0036] In one possible embodiment, the determination unit is further configured to, when the current state of the vehicle is an awake state, determine that the low-voltage battery needs to be charged if the voltage of the low-voltage battery is less than or equal to a voltage threshold and / or the remaining discharge time of the low-voltage battery is less than or equal to a discharge time threshold. Determine that the low-voltage battery does not need to be charged if the voltage of the low-voltage battery is greater than the voltage threshold and / or the remaining discharge time of the low-voltage battery is greater than the discharge time threshold.

[0037] In one possible embodiment, the determining unit is further configured to, when the vehicle is currently in a dormant state, determine that the low-voltage battery needs to be charged if the remaining discharge time of the low-voltage battery is less than or equal to a discharge time threshold, and determine that the low-voltage battery does not need to be charged if the remaining discharge time of the low-voltage battery is greater than the discharge time threshold.

[0038] In one possible manner, the determination unit is further configured to determine a remaining discharge time of the low-voltage battery based on operating information of the low-voltage device, a current operating state of the vehicle, and a target energy consumption compensation parameter.

[0039] In one possible embodiment, the determination unit is further used to determine the current remaining energy of the low-voltage battery based on the voltage of the low-voltage battery, the output power and working status of the DC conversion device, the energy consumption power of the low-voltage electrical equipment, and the target energy consumption compensation parameter.

[0040] In one possible manner, the determination unit is further configured to determine a remaining discharge time of the low-voltage battery based on a current operating state of the vehicle and a current remaining energy of the low-voltage battery.

[0041] In one possible manner, the determination unit is further configured to, when the current state of the vehicle is the awake state, determine the target energy consumption power of the low-voltage electrical equipment based on the energy consumption power of the low-voltage electrical equipment and the target energy consumption compensation parameter.

[0042] In one possible manner, the determination unit is further configured to determine a remaining discharge time of the low-voltage battery based on a current remaining energy of the low-voltage battery and a target energy consumption power of the low-voltage electrical equipment.

[0043] In one possible manner, the determination unit is further configured to, when the current state of the vehicle is a dormant state, determine the remaining energy of the low-voltage battery when the vehicle enters the dormant state and the remaining energy when the vehicle exits the dormant state.

[0044] In one possible manner, the determining unit is further configured to determine the dark current energy consumption power of the low-voltage battery based on the remaining energy of the low-voltage battery when the vehicle enters a dormant state and the remaining energy of the low-voltage battery when the vehicle exits the dormant state.

[0045] In one possible manner, the determining unit is further configured to determine a remaining discharge time of the low-voltage battery based on the dark current energy consumption power and the current remaining energy of the low-voltage battery.

[0046] According to a fifth aspect provided by the present application, a battery charging device is provided, which is applied to a vehicle. The device includes: a transceiver unit and a response unit.

[0047] The transceiver unit is used to send the operating information of the low-voltage equipment and the current status of the vehicle to the server, so that the server can determine whether the low-voltage battery needs to be charged based on the operating information of the low-voltage equipment and the current status of the vehicle; the low-voltage equipment includes a low-voltage battery and a DC conversion device.

[0048] The transceiver unit is also used to receive a high-voltage power-on instruction sent by the service end; the high-voltage power-on instruction is sent by the service end when it determines that the low-voltage battery needs to be charged.

[0049] The response unit is used to charge the low-voltage battery through the DC conversion device in response to the high-voltage power-on instruction.

[0050] According to the sixth aspect provided by the present application, a vehicle is provided, which is used to execute the method of the above-mentioned second aspect and any possible implementation method thereof.

[0051] According to a seventh aspect of the present application, an electronic device is provided, comprising: a processor; and a memory for storing processor-executable instructions. The processor is configured to execute the instructions to implement the method of the first aspect and any possible implementation thereof, or the method of the second aspect and any possible implementation thereof.

[0052] According to the eighth aspect provided by the present application, a computer-readable storage medium is provided. When the instructions in the computer-readable storage medium are executed by the processor of an electronic device, the electronic device is enabled to execute the method in the above-mentioned first aspect and any possible implementation method thereof, or execute the method in the above-mentioned second aspect and any possible implementation method thereof.

[0053] According to the ninth aspect provided by the present application, a computer program product is provided, which includes computer instructions. When the computer instructions are run on an electronic device, the electronic device executes the method of the above-mentioned first aspect and any possible implementation method thereof, or executes the method of the above-mentioned second aspect and any possible implementation method thereof.

[0054] Therefore, the above technical features of this application have the following beneficial effects:

[0055] (1) The operating information of the low-voltage equipment and the current status of the vehicle can be combined to determine whether the low-voltage battery needs to be charged, rather than charging blindly, making the charging control more rational and precise. This can avoid unnecessary charging operations, optimize the charging timing and energy utilization efficiency, and extend the service life of the low-voltage battery. In addition, when it is determined that the low-voltage battery needs to be charged, a high-voltage power-on instruction is sent to the vehicle, so that the vehicle can charge the low-voltage battery through the DC conversion device, which rationally utilizes the vehicle's high-voltage system resources, reduces manual intervention, and improves user experience.

[0056] (2) By comprehensively considering the current state of the vehicle and the energy information of the low-voltage battery, the charging demand of the low-voltage battery can be accurately determined. In this way, the high-voltage power-on command can be triggered only when the energy information of the low-voltage battery and the vehicle state meet the conditions, thereby avoiding vehicle energy waste.

[0057] (3) When the voltage of the low-voltage battery is too low or the remaining discharge time is insufficient, it can be charged in time, so as to ensure the normal operation of the low-voltage battery and prevent power failure.

[0058] (4) By obtaining the target energy consumption compensation parameters corresponding to the low-voltage battery voltage and the vehicle's current ambient temperature, the impact of environmental factors and the battery's own state on energy consumption can be fully considered. On this basis, combined with the operating information of the low-voltage equipment and the current operating status of the vehicle, the accuracy of the remaining discharge time estimation can be improved.

[0059] (5) By comprehensively considering key factors such as the voltage of the low-voltage battery, the output power and operating status of the DC converter, the energy consumption power of the low-voltage electrical equipment, and the target energy consumption compensation parameters, the current remaining energy of the low-voltage battery can be determined more accurately, providing a reliable data basis for subsequent system management and decision-making. In addition, combining the current state of the vehicle with the accurately calculated current remaining energy of the low-voltage battery, a remaining discharge time that is more in line with the actual situation can be obtained.

[0060] (6) By determining the remaining energy of the low-voltage battery when the vehicle enters and exits the sleep state, and further calculating the dark current energy consumption power, the energy loss of the low-voltage battery during the sleep period can be evaluated more accurately, which is of great significance for optimizing the vehicle's electrical system design and reducing energy consumption during sleep.

[0061] (7) By determining multiple dark current energy consumption powers of the low-voltage battery within a first preset time period and comparing them with the energy consumption threshold, it is possible to promptly detect whether the low-voltage battery has abnormal power consumption. When the number of dark current energy consumption powers greater than the energy consumption threshold is greater than the first number threshold, a dark current abnormality message is output, so that the vehicle user or maintenance personnel can quickly know the abnormal condition of the battery and take corresponding measures to avoid problems such as the vehicle being unable to start normally or the battery being damaged due to excessive battery consumption.

[0062] (8) Based on the charge and discharge parameters, the actual life status of the battery can be comprehensively and accurately evaluated. By discovering battery health problems in advance and taking corresponding measures, the battery life can be extended.

[0063] (9) The operating information of the low-voltage equipment and the current status of the vehicle can be sent to the server, so that the server can comprehensively judge whether the low-voltage battery needs to be charged. When the server determines that the low-voltage battery needs to be charged and sends a high-voltage power-on command, the vehicle can respond to the high-voltage power-on command and charge the low-voltage battery through the DC conversion device. This can effectively ensure that the energy of the low-voltage battery is at an appropriate level and ensure the stable operation of the vehicle's electrical system.

[0064] (10) When the vehicle detects that it cannot communicate with the server, it can still independently determine whether it needs to charge the low-voltage battery based on the operating information of its own low-voltage equipment and the current status of the vehicle. This allows the vehicle to ensure the normal operation of the charging function in the event of a communication failure, avoiding the situation where the low-voltage battery cannot be charged due to the inability to communicate with the server, and ensuring the autonomy and stability of the vehicle's energy supply.

[0065] It should be noted that the technical effects brought about by any implementation method in the third to ninth aspects can be referred to the technical effects brought about by the corresponding implementation method in the first aspect, or the technical effects brought about by the corresponding implementation method in the second aspect, and will not be repeated here.

[0066] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0067] Figure 1 An architectural diagram of a battery charging system provided in an embodiment of the present application;

[0068] Figure 2 An architectural diagram of another battery charging system provided in an embodiment of the present application;

[0069] Figure 3 A flowchart of a battery charging method provided in an embodiment of the present application;

[0070] Figure 4 A schematic flow chart of another battery charging method provided in an embodiment of the present application;

[0071] Figure 5 A schematic diagram of a curve of operating parameters of a low-voltage device provided in an embodiment of the present application;

[0072] Figure 6 A schematic diagram of a process for constructing a low-voltage battery charge and discharge parameter map provided in an embodiment of the present application;

[0073] Figure 7 A schematic diagram of a curve showing operating parameters of another low-voltage device provided in an embodiment of the present application;

[0074] Figure 8 A schematic diagram of a process for constructing a low-voltage energy consumption compensation parameter Map provided in an embodiment of the present application;

[0075] Figure 9 A schematic diagram of the classification of low-voltage electrical equipment provided in an embodiment of the present application;

[0076] Figure 10 A flowchart of another battery charging method provided in an embodiment of the present application;

[0077] Figure 11 A block diagram of a battery charging device provided in an embodiment of the present application;

[0078] Figure 12 A block diagram of another battery charging device provided in an embodiment of the present application;

[0079] Figure 13 A block diagram of an electronic device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0080] In order to enable ordinary people in the art to better understand the technical solutions of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings.

[0081] It should be noted that the terms "first," "second," and the like in the specification and claims of this application and the accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate so that the embodiments of the application described herein can be implemented in an order other than those illustrated or described herein. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present application. Instead, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.

[0082] In the embodiments of this application, words such as "exemplary," "for example," or "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described as "exemplary," "for example," or "for example" in the embodiments of this application should not be interpreted as being more preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary," "for example," or "for example" is intended to present the relevant concepts in a concrete manner.

[0083] First, the relevant technologies involved in this application are explained to facilitate understanding by those skilled in the art.

[0084] With the rapid development of intelligent automotive technology, the number and variety of functional modules installed in vehicles are increasing, leading to a sharp increase in the number of electrical devices such as sensors and actuators. Even after the vehicle is powered off, although the main power system is shut down, some functions such as over-the-air (OTA) upgrades and mobile phone remote control must continue to operate. These functions require the coordinated operation of various controllers, actuators, sensors, and other electrical devices, resulting in significant low-voltage energy consumption. For new energy vehicles, the current solution commonly adopted by the automotive industry is to use the vehicle's low-voltage battery to provide low-voltage power to various onboard controllers, sensors, and actuators after the vehicle is powered off. However, this solution is prone to low-voltage battery power-up, which can affect the vehicle's normal startup and functional operation.

[0085] Currently, solutions for low-voltage battery feeding are mainly divided into two categories: one is a charging solution based on intelligent battery sensors (IBS), and the other is a charging solution based on information such as low-voltage battery voltage and temperature.

[0086] Solution 1 primarily calculates the remaining energy and remaining discharge time of the low-voltage battery based on real-time monitoring of the low-voltage battery voltage and current via the IBS. When the low-voltage battery energy level is detected, the vehicle's high-voltage system automatically activates and recharges the low-voltage battery via a direct current to direct current converter (DCDC), effectively preventing power outages. However, the relatively high cost of IBS hardware means that most new energy vehicles lack it.

[0087] Solution 2, primarily for new energy vehicles without IBS hardware, calculates a recharging time and duration based on the low-voltage battery voltage and other information such as temperature. This solution then wakes the vehicle at the recharging time and controls the vehicle to activate the high-voltage system, recharging the low-voltage battery via DC-DC. While this solution offers some cost savings, it still has significant limitations. Specifically, the lack of accurate low-voltage battery status monitoring makes it impossible to accurately estimate the actual energy level and remaining discharge time of the low-voltage battery, potentially leading to premature or delayed recharging. Furthermore, optimizing the calculation strategy for the recharging time and duration requires extensive testing and calibration, increasing R&D costs and time. Furthermore, the limited accuracy of the recharging time and duration calculations can lead to inaccurate recharging timing, which in turn increases high-voltage energy consumption, wastes energy, and impacts the user experience.

[0088] Therefore, there is an urgent need to develop a more efficient and accurate solution to reduce costs while improving the accuracy of low-voltage battery status monitoring and the rationality of the charging strategy, thereby reducing vehicle energy consumption and improving user experience.

[0089] To address the above technical issues, the present application provides a battery charging method that combines the operating information of the low-voltage device and the current state of the vehicle to determine whether the low-voltage battery needs to be charged, rather than charging blindly. This makes charging control more rational and precise, thus avoiding unnecessary charging operations, optimizing charging timing and energy efficiency, and extending the service life of the low-voltage battery. In addition, a high-voltage power-on command is sent to the vehicle only when it is determined that the low-voltage battery needs to be charged, so that the vehicle charges the low-voltage battery through the DC conversion device. This rationally utilizes the vehicle's high-voltage system resources, while reducing manual intervention and improving the user experience.

[0090] The technical solutions in the embodiments of the present application will be 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 the embodiments.

[0091] Figure 1 This is an architecture diagram of a battery charging system provided in an embodiment of the present application, such as Figure 1 As shown, the system architecture includes: a server 101, a vehicle 102 and a terminal device 103. The server 101, the vehicle 102 and the terminal device 103 are in communication connection with each other.

[0092] The server 101 may be a high-performance server that provides various services online, an independent physical server, a server cluster composed of multiple physical servers, or at least one of cloud servers that provide basic cloud computing services such as cloud services, cloud databases, cloud computing, cloud functions, cloud storage, network services, cloud communications, middleware services, domain name services, security services, content distribution networks, and big data or artificial intelligence platforms. This embodiment of the present application does not limit this. Of course, the server can also include other functions to provide more comprehensive and diverse services.

[0093] The server 101 in the embodiment of the present application can be a single server, a server cluster, or a cloud server, which is not limited in the embodiment of the present application.

[0094] The vehicle 102 may be a sedan, a sport utility vehicle (SUV), a truck, an electric vehicle, a motorcycle, a tricycle, a special vehicle (such as an ambulance, a fire truck, a police car, etc.), an unmanned taxi, an intelligent network bus, an autonomous logistics vehicle, an electric truck, etc. In addition, the method is also applicable to various types of special vehicles, such as agricultural vehicles, mining vehicles, forestry vehicles, airport vehicles, port vehicles, etc. This application does not impose specific restrictions on this. In the embodiments of the present application, the vehicle 102 may be referred to as a vehicle, a mobile carrier, an electric vehicle (EV), a hybrid electric vehicle (HEV), a plug-in hybrid electric vehicle (PHEV), a fuel cell vehicle (FCV), an autonomous vehicle, an intelligent and connected vehicle (ICV), a driverless vehicle, etc., without limitation.

[0095] The terminal device 103 can be a device that provides voice and / or data connectivity to a user, a device with wireless connectivity, or other device connected to a wireless modem. The terminal device 103 can be at least one of a mobile phone, a desktop computer, a handheld computer, a wireless terminal, and a laptop computer. In one embodiment, the terminal device 103 has communication capabilities and can access a wired network or a wireless network.

[0096] The embodiment of the present application does not limit the number of terminal devices 103 in the battery charging system, and may include Figure 1 More or fewer terminal devices 103.

[0097] In this embodiment of the present application, vehicle 102 can send low-voltage device operating information and the vehicle's current status to server 101. Accordingly, server 101 can determine whether the low-voltage battery needs to be charged based on the low-voltage device operating information and the vehicle's current status sent by vehicle 102. If it is determined that the low-voltage battery needs to be charged, server 101 can send a high-voltage power-on command to vehicle 102. Accordingly, vehicle 102 can charge the low-voltage battery via the DC converter in response to the high-voltage power-on command.

[0098] Optionally, the server 101 may determine multiple dark current energy consumption power levels of the low-voltage battery within a first preset time period, and if the number of dark current energy consumption power levels exceeding the energy consumption threshold among the multiple dark current energy consumption power levels exceeds a first threshold, send a dark current abnormality message to the vehicle 102 and the terminal device 103. Accordingly, the user may view the dark current abnormality message on the dashboard of the vehicle 102. The user holding the terminal device 103 may view the dark current abnormality message on an application installed on the terminal device 103.

[0099] Optionally, the server 101 may obtain multiple charge and discharge parameters corresponding to the voltage of the low-voltage battery and the ambient temperature of the vehicle within a second preset time period, and send a low-voltage battery health warning message to the vehicle 102 and the terminal device 103 if the number of charge and discharge parameters that are greater than the discharge parameter threshold among the multiple charge and discharge parameters is greater than a second number threshold. Accordingly, the user can view the low-voltage battery health warning message on the dashboard of the vehicle 102. The user holding the terminal device 103 can view the low-voltage battery health warning message on the application installed in the terminal device 103.

[0100] In one example, Figure 2 As shown, the server 101 is configured with artificial intelligence (AI) and big data algorithms. The AI ​​and big data algorithms may include a low-voltage battery charge and discharge parameter algorithm, a low-voltage battery current remaining energy algorithm, a low-voltage energy consumption compensation parameter algorithm, a dark current power consumption algorithm, a low-voltage battery remaining discharge time algorithm, a low-voltage battery internal charge energy algorithm, and a low-voltage battery internal discharge energy algorithm.

[0101] Among them, the low-voltage battery charge and discharge parameter algorithm is used to determine the charge and discharge parameters of the low-voltage battery, and construct a charge and discharge parameter map with the low-voltage battery voltage and the vehicle's ambient temperature as input, that is, the correspondence between the low-voltage battery voltage, the vehicle's ambient temperature and the charge and discharge parameters.

[0102] The low-voltage energy consumption compensation parameter algorithm is used to determine the low-voltage energy consumption compensation parameters (also called energy consumption compensation parameters) of the low-voltage electrical equipment of the entire vehicle, and to construct a Map with the low-voltage battery voltage and the vehicle's ambient temperature as input and the low-voltage energy consumption compensation parameters as output, that is, the correspondence between the low-voltage battery voltage, the vehicle's ambient temperature and the low-voltage energy consumption compensation parameters.

[0103] The current remaining energy algorithm of the low-voltage battery is used to determine the current remaining energy of the low-voltage battery.

[0104] The low-voltage battery remaining discharge time algorithm is used to determine the current remaining discharge time of the low-voltage battery.

[0105] Dark current consumption power algorithm is used to determine the current consumption power of the low-voltage battery when the vehicle is in sleep mode.

[0106] The internal charging energy algorithm of the low-voltage battery is used to determine the energy charged by the DC-DC converter when the low-voltage battery is in the charging state. The internal discharging energy algorithm of the low-voltage battery is used to determine the energy discharged when the low-voltage battery is in the discharging state.

[0107] In another example, Figure 2 As shown, the vehicles 102 may include a vehicle 102 - 1 configured with an IBS and a vehicle 102 - 2 configured without an IBS.

[0108] The vehicle 102 - 1 with IBS configuration can send the energy consumption power of the vehicle's low-voltage electrical equipment, the vehicle's ambient temperature, the output power and working status of the DC / DC converter, the operating information of the low-voltage battery, and the actual discharge power and voltage of the low-voltage battery to the server 101 .

[0109] The vehicle 102 - 2 without an IBS configuration may include a main controller, low-voltage electrical equipment (also called a downstream controller), and other controllers (such as a temperature sensor, DC-DC converter, and a low-voltage battery). The main controller may include a memory and a high-voltage power-on and power-off controller.

[0110] Among them, low-voltage electrical equipment can send energy consumption power to the main controller, and the main controller can aggregate the energy consumption power of each low-voltage electrical equipment to obtain the energy consumption power of the low-voltage electrical equipment of the entire vehicle. Other controllers can send ambient temperature, low-voltage battery voltage, DC-DC output power and operating status to the main controller. The main controller can send the received low-voltage battery voltage, vehicle ambient temperature, low-voltage electrical equipment energy consumption power, DC-DC output power and operating status to the server 101 and store them in the memory.

[0111] Optional, such as Figure 2As shown, the main controller may also be configured with local built-in algorithms, specifically including a low-voltage battery current remaining energy algorithm, a low-voltage battery remaining discharge time algorithm, a low-voltage battery internal charging energy algorithm, and a low-voltage battery internal discharge energy algorithm. The functions of each algorithm can be referred to the introduction of each algorithm in the server 101 above, and will not be repeated here.

[0112] In the embodiments of this application, Figure 2 As shown, the server 101 can send the low-voltage battery charge and discharge parameter map, the low-voltage energy consumption compensation parameter map, the current remaining energy of the low-voltage battery, and the dark current power consumption to the main controller in the vehicle 102-2 without an IBS configuration. Accordingly, the main controller can store the received low-voltage battery charge and discharge parameter map, the low-voltage energy consumption compensation parameter map, the current remaining energy of the low-voltage battery, and the dark current power consumption in a memory.

[0113] Optional, such as Figure 2 As shown, if the server 101 determines that the low-voltage battery needs to be charged, it can wake up the vehicle through the cloud and send a high-voltage power-on command to the main controller. Accordingly, after receiving the high-voltage power-on command, the main controller can control the vehicle to activate the high-voltage system through the high-voltage power-on and power-off controller, charging the low-voltage battery through DC-DC.

[0114] Optional, such as Figure 2 As shown, server 101 can also send dark current anomaly messages and low-voltage battery health warning messages to vehicle 102-2 (not equipped with an IBS) and terminal device 103. Accordingly, users can view these messages on the dashboard of vehicle 102-2 (not equipped with an IBS). Users of terminal device 103 can view these messages using an application installed on terminal device 103.

[0115] For ease of understanding, the resource configuration method provided in this application is described in detail below with reference to the accompanying drawings.

[0116] Figure 3 A flowchart of a battery charging method provided in an embodiment of the present application is shown in FIG. Figure 3 As shown, the method includes: S301-S304.

[0117] S301: The vehicle sends the operating information of the low-voltage device and the current status of the vehicle to the server. Correspondingly, the server receives the operating information of the low-voltage device and the current status of the vehicle from the vehicle.

[0118] The low-voltage equipment may include a low-voltage battery, a direct current conversion device (hereinafter referred to as DCDC) and low-voltage electrical equipment.

[0119] In the embodiment of the present application, the operating information of the low-voltage equipment may include the voltage of the low-voltage battery, the energy consumption power of the low-voltage electrical equipment, the output power and working status of the DCDC, etc., without limitation.

[0120] In one possible implementation, the vehicle can send the low-voltage battery voltage, the power consumption of low-voltage electrical devices, the output power and operating status of the DC-DC converter, and the current vehicle status to the service end in real time. Correspondingly, the service end can receive the low-voltage battery voltage, the power consumption of low-voltage electrical devices, the output power and operating status of the DC-DC converter, and the current vehicle status from the vehicle.

[0121] S302: The server determines whether the low-voltage battery needs to be charged based on the operating information of the low-voltage device and the current state of the vehicle.

[0122] In an embodiment of the present application, the server can determine the energy information of the low-voltage battery based on the operating information of the low-voltage device. Then, the server can determine whether the low-voltage battery needs to be charged based on the current state of the vehicle and the energy information of the low-voltage battery.

[0123] The energy information of the low-voltage battery may include the remaining discharge time of the low-voltage battery and / or the voltage of the low-voltage battery.

[0124] In one possible implementation, when the vehicle is currently in the awake state, if the voltage of the low-voltage battery is less than or equal to the voltage threshold, and / or the remaining discharge time of the low-voltage battery is less than or equal to the discharge time threshold, the server may determine that the low-voltage battery needs to be charged. If the voltage of the low-voltage battery is greater than the voltage threshold, and / or the remaining discharge time of the low-voltage battery is greater than the discharge time threshold, the server may determine that the low-voltage battery does not need to be charged.

[0125] Optionally, the voltage threshold in the embodiment of the present application can be set according to actual needs. For example, the voltage threshold can be 12.05 volts (Volt, V) or 12V, etc., which is not limited to this.

[0126] In another possible implementation, when the vehicle is currently in a dormant state, if the remaining discharge time of the low-voltage battery is less than or equal to a discharge time threshold, the server may determine that the low-voltage battery needs to be charged. If the remaining discharge time of the low-voltage battery is greater than the discharge time threshold, the server may determine that the low-voltage battery does not need to be charged.

[0127] S303: When the server determines that the low-voltage battery needs to be charged, it sends a high-voltage power-on instruction to the vehicle, so that the vehicle charges the low-voltage battery through the DC converter. Accordingly, the vehicle receives the high-voltage power-on instruction sent by the server.

[0128] In one possible implementation, when the current state of the vehicle is the awake state, the server may send a high-voltage power-on instruction to the vehicle to instruct the vehicle to charge the low-voltage battery through DCDC.

[0129] In another possible implementation, when the vehicle is currently in a dormant state, the server can remotely wake up the vehicle and send a high-voltage power-on command to the vehicle.

[0130] S304: The vehicle charges the low-voltage battery via the DC conversion device in response to the high-voltage power-on instruction.

[0131] In one possible implementation method, after the vehicle receives a high-voltage power-on command from the service end, it can activate DCDC, and then use DCDC to convert the high-voltage direct current of the high-voltage power battery into a low-voltage direct current to charge the low-voltage battery.

[0132] Based on the above technical solution, the present application can combine the operating information of the low-voltage equipment and the current status of the vehicle to accurately determine whether the low-voltage battery needs to be charged, rather than charging it blindly. This method makes charging control more rational and precise, and effectively avoids unnecessary charging operations. In this way, not only the charging timing and energy utilization efficiency are optimized, but also the service life of the low-voltage battery can be extended. In addition, when it is determined that the low-voltage battery needs to be charged, a high-voltage power-on instruction is sent to the vehicle, so that the vehicle charges the low-voltage battery through the DC conversion equipment, realizing the rational use of the vehicle's high-voltage system resources, while reducing manual intervention and improving the user experience.

[0133] In some embodiments, in S302 above, the remaining discharge time of the low-voltage battery may be determined by:

[0134] The server can obtain the target energy consumption compensation parameter corresponding to the low-voltage battery voltage and the vehicle's current ambient temperature. The server can then determine the remaining discharge time of the low-voltage battery based on the operating information of the low-voltage equipment, the vehicle's current operating status, and the target energy consumption compensation parameter.

[0135] In one possible implementation, the server stores the correspondence between the low-voltage battery voltage, ambient temperature, and energy consumption compensation parameters (hereinafter referred to as the low-voltage energy consumption compensation parameter Map). Based on this, the server can obtain the target energy consumption compensation parameters corresponding to the current low-voltage battery voltage and current ambient temperature from the low-voltage energy consumption compensation parameter Map. The server can then determine the remaining discharge time of the low-voltage battery based on the operating information of the low-voltage equipment, the current operating status of the vehicle, and the target energy consumption compensation parameters. The construction method of the low-voltage energy consumption compensation parameter Map can be referred to the following embodiment and will not be elaborated here.

[0136] Based on the above technical solution, this application fully considers the impact of environmental factors and the battery's own state on energy consumption by obtaining target energy consumption compensation parameters corresponding to the low-voltage battery voltage and the vehicle's current ambient temperature. Furthermore, by combining the operating information of the low-voltage equipment and the vehicle's current operating status, the accuracy of the remaining discharge time estimation can be improved.

[0137] In some embodiments, the server determines the remaining discharge time of the low-voltage battery based on the operating information of the low-voltage equipment, the current operating state of the vehicle, and the target energy consumption compensation parameter. This may include: the server may determine the current remaining energy of the low-voltage battery based on the voltage of the low-voltage battery, the output power and operating state of the DC converter equipment, the energy consumption power of the low-voltage electrical equipment, and the target energy consumption compensation parameter. Subsequently, the server may determine the remaining discharge time of the low-voltage battery based on the current operating state of the vehicle and the current remaining energy of the low-voltage battery.

[0138] In one possible implementation, when the vehicle is currently awake, the server can determine the target energy consumption of the low-voltage electrical equipment based on the energy consumption of the low-voltage electrical equipment and the target energy consumption compensation parameter. The server can then determine the remaining discharge time of the low-voltage battery based on the current remaining energy in the low-voltage battery and the target energy consumption of the low-voltage electrical equipment. The method for determining the current remaining energy in the low-voltage battery can be referred to in the following embodiment and is not further described here.

[0139] For example, the server may use the product of the energy consumption of the low-voltage electrical equipment and the target energy consumption compensation parameter as the target energy consumption of the low-voltage electrical equipment. Subsequently, the server may use the ratio of the current remaining energy of the low-voltage battery to the target energy consumption of the low-voltage electrical equipment as the remaining discharge time of the low-voltage battery. For example, if the vehicle is currently in the awake state, the formula for calculating the remaining discharge time of the low-voltage battery can refer to the following formula 1.

[0140] (Formula 1).

[0141] in, The current remaining energy of the low-voltage battery is in watt-hours (Wh). The energy consumption of low-voltage electrical equipment is in watts (W). is the target energy consumption compensation parameter, It is the remaining discharge time of the low-voltage battery.

[0142] In another possible implementation method, when the current state of the vehicle is a dormant state, the server can determine the remaining energy of the low-voltage battery when the vehicle enters the dormant state and the remaining energy when it exits the dormant state. Then, the server can determine the dark current energy consumption power of the low-voltage battery based on the remaining energy of the low-voltage battery when the vehicle enters the dormant state and the remaining energy when it exits the dormant state. Finally, the server can determine the remaining discharge time of the low-voltage battery based on the dark current energy consumption power of the low-voltage battery and the current remaining energy. The method for determining the dark current energy consumption power of the low-voltage battery can refer to the following embodiment and will not be repeated here.

[0143] Among them, dark current energy consumption power refers to the current consumption of the low-voltage battery after the vehicle enters the dormant state.

[0144] For example, the server can use the ratio of the current remaining energy of the low-voltage battery to the dark current energy consumption as the remaining discharge time of the low-voltage battery. For example, when the vehicle is currently in a dormant state, the calculation formula for the remaining discharge time of the low-voltage battery can refer to the following formula 2.

[0145] (Formula 2).

[0146] in, is the current remaining energy of the low-voltage battery, is the dark current energy consumption power of the low-voltage battery, in W, It is the remaining discharge time of the low-voltage battery.

[0147] Based on the above technical means, this application comprehensively considers the remaining discharge time calculation when the vehicle is in both awake and dormant states, which can fully understand the status of the low-voltage battery and provide a basis for subsequently determining whether the low-voltage battery needs to be charged. In addition, in scenarios such as long-term vehicle parking, accurate remaining discharge time assessment can help users or maintenance personnel understand the battery status in a timely manner, preventing damage caused by excessive discharge of the battery due to long-term parking. It can also be of great significance for optimizing the vehicle's electrical system design and reducing energy consumption during dormancy.

[0148] In some embodiments, as Figure 4As shown, the above-mentioned determination of the current remaining energy of the low-voltage battery based on the voltage of the low-voltage battery, the output power and working status of the DC conversion device, the energy consumption power of the low-voltage electrical equipment and the target energy consumption compensation parameter may specifically include: S401-S403.

[0149] S401 : Determine the working condition of the low-voltage battery based on the energy consumption power of the low-voltage electrical equipment, the target energy consumption compensation parameter, and the working state and output power of the DC / DC converter.

[0150] In the embodiment of the present application, the operating conditions of the low-voltage battery may include a charging condition, a discharging condition, and a fully charged condition.

[0151] Specifically, when the DCDC is not operating, the server can determine that the low-voltage battery is in a discharging condition. When the DCDC is operating, if the DCDC output power is less than the product of the energy consumption power of the low-voltage electrical equipment and the target energy consumption compensation parameter, the server can determine that the low-voltage battery is in a discharging condition.

[0152] When the DCDC is in operation, if the output power of the DCDC is greater than the product of the energy consumption power of the low-voltage electrical equipment and the target energy consumption compensation parameter, the service end can determine that the operating condition of the low-voltage battery is a charging condition.

[0153] When the output power of the DCDC is equal to the product of the energy consumption power of the low-voltage electrical equipment and the target energy consumption compensation parameter, the server can determine that the operating condition of the low-voltage battery is a fully charged condition.

[0154] For example, Figure 5 As shown, combined with the above content, in the time period t1-t2 and t5-t6, DCDC is in working state, and the output power of DCDC is Greater than the energy consumption of low-voltage electrical equipment Compensation parameters for target energy consumption The product of , then in the time periods t1-t2 and t5-t6, the operating condition of the low-voltage battery is the charging condition.

[0155] During the time periods t0-t1, t2-t3, t4-t5, and t7-t8, the DCDC is in a non-working state. Therefore, during the time periods t0-t1, t2-t3, t4-t5, and t7-t8, the operating condition of the low-voltage battery is a discharging condition.

[0156] S402 : Determine the charging energy and discharging energy of the low-voltage battery based on the working condition of the low-voltage battery, the output power of the DC / DC converter, the energy consumption power of the low-voltage electrical equipment, and the target energy consumption compensation parameter.

[0157] In one possible implementation, the server stores the correspondence between the voltage of the low-voltage battery, the ambient temperature, and the charge and discharge parameters (hereinafter referred to as the low-voltage battery charge and discharge parameter Map). On this basis, when the operating condition of the low-voltage battery is the charging condition, the server can determine the target charge and discharge parameters corresponding to the voltage of the low-voltage battery and the ambient temperature of the vehicle from the low-voltage battery charge and discharge parameter Map. Afterwards, the server can determine the charged energy of the low-voltage battery based on the target charge and discharge parameters, the output power of the DCDC, the energy consumption power of the low-voltage electrical equipment, and the target energy consumption compensation parameters. Among them, the construction method of the low-voltage battery charge and discharge parameter Map can refer to the following embodiment and will not be repeated here.

[0158] For example, combined Figure 5 Taking the time period t1-t2, where the low-voltage battery is in a charging condition, as an example, the charging energy of the low-voltage battery can satisfy the following formula 3.

[0159] (Formula 3).

[0160] in, is the output power of the DCDC corresponding to time t, in W, is any moment in the time period t1-t2, is the energy consumption power of the low-voltage electrical equipment corresponding to time t, is the target energy consumption compensation parameter corresponding to time t, is the target charge and discharge parameter corresponding to time t, It is the energy charged into the low-voltage battery during the time period t1-t2.

[0161] In another possible implementation, when the low-voltage battery is in a discharging operating condition, the server may determine the discharged energy of the low-voltage battery based on the energy consumption power of the low-voltage electrical equipment and the target energy consumption compensation parameter.

[0162] For example, combined Figure 5 Taking the time period t2-t3, where the low-voltage battery operates under a discharge condition, as an example, the energy released by the low-voltage battery can satisfy the following formula 4.

[0163] (Formula 4).

[0164] in, is any moment in the time period t2-t3, is the energy consumption power of the low-voltage electrical equipment corresponding to time t, is the target energy consumption compensation parameter corresponding to time t, It is the energy released by the low-voltage battery during the time period t2-t3.

[0165] S403: Determine the current remaining energy of the low-voltage battery based on the charged energy and discharged energy of the low-voltage battery.

[0166] For example, combined Figure 5 Taking the calculation of the current remaining energy of the low-voltage battery at time t3 as an example, the server can determine the low-voltage battery's charged energy based on Formula 3 and the low-voltage battery's discharged energy based on Formula 4. The server can then determine the low-voltage battery's remaining energy at time t3 using Formula 5.

[0167] (Formula 5).

[0168] in, is the remaining energy of the low-voltage battery at time t3, is the remaining energy of the low-voltage battery at time t1, is the energy released by the low-voltage battery during the time period t2-t3, It is the energy charged into the low-voltage battery during the time period t1-t2.

[0169] In one possible implementation, after detecting the voltage of the low-voltage battery =12.00±0.05V, the server can Clear, that is =0Wh.

[0170] Based on the above technical solution, this application can more accurately determine the current remaining energy of the low-voltage battery by comprehensively considering multi-dimensional information such as the voltage of the low-voltage battery, the output power and working status of the DC conversion equipment, the energy consumption power of the low-voltage electrical equipment, the energy consumption compensation parameters, and the charging and discharging parameters, thereby providing a reliable data basis for the subsequent determination of the remaining discharge time of the low-voltage battery.

[0171] In some embodiments, as Figure 6 As shown, the above-mentioned low-voltage battery charge and discharge parameter Map can be obtained through the following S601-S604.

[0172] S601 : Determine the working condition of the low-voltage battery based on the voltage of the low-voltage battery, the energy consumption power of the low-voltage electrical equipment, and the working state of the DC / DC converter.

[0173] In one possible implementation, when the DCDC is not working, if the change in the voltage of the low-voltage battery corresponds to the change in the energy consumption power of the low-voltage electrical equipment, the service end can determine that the operating condition of the low-voltage battery is a discharge condition.

[0174] For example, Figure 7As shown, during the time period t2-t3, the DCDC is not working and the energy consumption of the low-voltage electrical equipment is The change curve of the low-voltage battery voltage The change curves of the voltage drop have small fluctuations and decrease steadily. In this case, the service end can determine that the working condition of the low-voltage battery is a discharge condition.

[0175] During the t0-t1 period, the DCDC is not working and the energy consumption of the low-voltage electrical equipment is When a large fluctuation occurs, and at the peak, the voltage of the low-voltage battery In this case, the service end can determine that the low-voltage battery is in a discharging condition.

[0176] In another possible implementation method, when the DCDC is in a working state, if the difference between the energy consumption power of the low-voltage electrical equipment when the DCDC enters the working state and the energy consumption power of the low-voltage electrical equipment when the DCDC exits the working state is less than or equal to a preset difference, and the voltage of the low-voltage battery when the DCDC exits the working state is greater than the voltage of the low-voltage battery when the DCDC enters the working state, the service end can determine that the operating condition of the low-voltage battery is a charging condition.

[0177] Alternatively, when the DCDC is in an operating state, if the output power of the DCDC is greater than the energy consumption power of the low-voltage electrical equipment, the service end may determine that the operating condition of the low-voltage battery is a charging condition.

[0178] For example, Figure 7 As shown, during the time period t1-t2, the DCDC is in working state, and the energy consumption power of the low-voltage electrical equipment at time t2 is Energy consumption power of low-voltage electrical equipment at time t1 Equal, and the voltage of the low-voltage battery at time t2 (V2) is greater than the voltage of the low-voltage battery at time t1 (V1), so the server can determine that the working condition of the low-voltage battery is the charging condition.

[0179] For example, Figure 7 As shown, during the time period t1-t2, the DCDC is in a non-working state, and the output power of the DCDC during this time period is Greater than the energy consumption of low-voltage electrical equipment , so the server can determine that the working condition of the low-voltage battery is the charging condition.

[0180] S602 : Determine charging and discharging parameters based on the operating condition of the low-voltage battery, the output power of the DC / DC converter, the energy consumption power of the low-voltage electrical equipment, and the target energy consumption compensation parameter.

[0181] In one possible implementation, when the low-voltage battery is charging, the server can determine the total charging energy of the low-voltage battery based on the DC-DC output power, the energy consumption of the low-voltage electrical equipment, and the target energy consumption compensation parameter. When the low-voltage battery is discharging, the server can determine the total discharge energy of the low-voltage battery based on the energy consumption of the low-voltage electrical equipment and the target energy consumption compensation parameter. The server can then use the ratio of the low-voltage battery's total discharge energy to its total charging energy as a charge and discharge parameter.

[0182] For example, combined Figure 7 Taking the time period t1-t3 as an example, the total charging energy of the low-voltage battery satisfies the following formula 6, the total discharging energy of the low-voltage battery satisfies the following formula 7, and the charging and discharging parameters satisfy the following formula 8.

[0183] (Formula 6).

[0184] in, Indicates the total charging energy of the low-voltage battery, that is, Figure 7 As shown, from time t1, the low-voltage battery starts to charge, and the energy charged into the low-voltage battery until time t2 is The unit is Wh. The meaning of can refer to the introduction of the above formula 3 and will not be repeated here.

[0185] (Formula 7).

[0186] in, Indicates the total discharge energy of the low-voltage battery, such as Figure 7 As shown, starting from time t2, the low-voltage battery stops charging and starts discharging, until the voltage V3 of the low-voltage battery at time t3 is the same as the voltage V1 at time t1, the energy released by the low-voltage battery. The meaning of can refer to the introduction of the above formula 3 and will not be repeated here.

[0187] (Formula 8).

[0188] in, is the charge and discharge parameter.

[0189] S603: Construct a low-voltage battery charge and discharge parameter Map with the voltage of the low-voltage battery and the ambient temperature of the vehicle as inputs and the charge and discharge parameters as outputs.

[0190] S604 : Modify the low-voltage battery charge and discharge parameter Map based on the operating parameters of the low-voltage battery of the vehicle equipped with the IBS.

[0191] In one possible implementation, the server can receive operating parameters of a low-voltage battery from a vehicle equipped with an IBS. Based on this, the server can use the operating parameters of similar low-voltage batteries collected by the IBS as a standard to modify the charge and discharge parameters in the low-voltage battery charge and discharge parameter map to obtain more accurate charge and discharge parameters.

[0192] Based on the above technical solution, by constructing a low-voltage battery charge and discharge parameter map that uses the low-voltage battery voltage and the vehicle's ambient temperature as inputs and the charge and discharge parameters as outputs, we can support the subsequent determination of the low-voltage battery's current remaining energy. Furthermore, by monitoring and analyzing changes in these parameters, we can identify trends in low-voltage battery performance over time, providing a basis for determining the low-voltage battery's lifespan.

[0193] In some embodiments, as Figure 8 As shown, the above-mentioned low-voltage energy consumption compensation parameter Map can be obtained through the following S801-S802.

[0194] S801: Determine energy consumption compensation parameters based on the discharge power of the low-voltage battery of the vehicle equipped with the IBS and the energy consumption power of the low-voltage electrical equipment.

[0195] For example, the calculation formula of the energy consumption compensation parameter may refer to the following formula 9.

[0196] (Formula 9).

[0197] in, is the discharge power of the low-voltage battery (also known as the actual discharge power of the low-voltage battery), The energy consumption power of low-voltage electrical equipment (also known as the real-time energy consumption power of low-voltage components of the vehicle), is the energy consumption compensation parameter.

[0198] S802: Construct a low-voltage energy consumption compensation parameter Map with the voltage of the low-voltage battery and the ambient temperature of the vehicle as inputs and the energy consumption compensation parameter as output.

[0199] Based on the above technical solution, by constructing a low-voltage battery charge and discharge parameter Map with the low-voltage battery voltage and the vehicle's ambient temperature as input and the energy consumption compensation parameters as output, data support can be provided for the subsequent determination of the current remaining energy and remaining discharge time of the low-voltage battery. At the same time, the energy consumption compensation parameters can be used to correct the energy consumption power of low-voltage electrical equipment to obtain energy consumption power that conforms to actual conditions, thereby improving the accuracy of the remaining discharge time estimation.

[0200] In some embodiments, the method provided by the embodiments of the present application may further include: determining the dark current energy consumption power of the low-voltage battery.

[0201] In one possible implementation, the server can determine the remaining energy of the low-voltage battery when the vehicle enters a dormant state and the remaining energy after exiting the dormant state by referring to the method in S401-S403 above. The server can then determine the remaining energy of the low-voltage battery when the vehicle enters a dormant state, the remaining energy after exiting the dormant state, and the duration of the vehicle's dormant state to determine the dark current energy consumption of the low-voltage battery.

[0202] In one example, Figure 5 As shown in the figure, the vehicle is in dormant state during the time period t3-t4. After the vehicle wakes up at time t4, the DCDC does not enter the working state, and the low-voltage battery continues to discharge until time t5, when the voltage of the low-voltage battery V1a = 12.00±0.05V. In this case, the server can refer to the above formula 4 to calculate the energy released by the low-voltage battery during the time period t4-t5. Afterwards, the remaining energy of the low-voltage battery at time t4 can be determined by referring to the following formula 10: In addition, the server can refer to the above formula 5 to calculate the remaining energy of the low-voltage battery at time t3 .

[0203] (Formula 10).

[0204] Based on the above, the server can use the remaining energy of the low-voltage battery , the remaining energy of the low-voltage battery And the duration of the t3-t4 time period, determine the dark current energy consumption power in the t3-t4 time period , the specific calculation formula can refer to the following formula 11.

[0205] (Formula 11).

[0206] In another example, Figure 5 As shown, the vehicle is in dormant state during the time period t3-t4. After the vehicle wakes up at time t4, the DCDC does not enter the working state, and the low-voltage battery continues to discharge until the voltage V1 of the low-voltage battery at time t5. 12.00±0.05V. After that, DCDC enters the working state to charge the low-voltage battery until t6. The output power of DCDC and =Equal (i.e. the low-voltage battery is fully charged). Assuming that the vehicle's ambient temperature has not changed significantly, in this case, the server can refer to the following formula 12 to determine the remaining energy of the low-voltage battery at time t6: , that is, the remaining energy of the low-voltage battery at time t6 is equal to the remaining energy when the previous DCDC entered the working state.

[0207] (Formula 12).

[0208] in, is the remaining energy of the low-voltage battery at time t2, which can be calculated by referring to the above formula 5.

[0209] Based on the above, the server can calculate the remaining energy of the low-voltage battery at time t4 by referring to the following formula 13: Afterwards, the server can refer to the above formula 11 to calculate the dark current energy consumption power during the t3-t4 period. .

[0210] (Formula 13).

[0211] in, is the energy charged into the low-voltage battery during the time period t5-t6, It is the energy released by the low-voltage battery during the time period t4-t5.

[0212] Based on the above technical solution, this application can more accurately evaluate the energy loss of the low-voltage battery during sleep by determining the remaining energy of the low-voltage battery when the vehicle enters and exits sleep mode, and further calculating the dark current energy consumption power. This is of great significance for optimizing the vehicle's electrical system design and reducing energy consumption during sleep mode.

[0213] In some embodiments, the method provided by the embodiments of the present application may further include: monitoring abnormal dark current conditions of the low-voltage battery.

[0214] In one possible implementation, the server can determine multiple dark current energy consumption levels of the low-voltage battery within a first preset time period. If the number of target dark current energy consumption levels among the multiple dark current energy consumption levels exceeds a first threshold, the server can send a dark current anomaly message to the vehicle and terminal device to alert the user of the abnormal dark current during vehicle hibernation.

[0215] The target dark current energy consumption power value is greater than the energy consumption threshold.

[0216] In the embodiment of the present application, the first quantity threshold can be determined according to actual needs. For example, the first quantity threshold can be 5, 10, 20, etc., which is not limited to this.

[0217] For example, assume that the first quantity threshold is 2. Assume that within the time period t1-t5, the dark current energy consumption power at time t1 and time t3 is less than the energy consumption threshold, and the dark current energy consumption power at time t2, time t4, and time t5 is greater than the energy consumption threshold. In this case, the service end can send a dark current abnormality message to the vehicle and the terminal device.

[0218] Based on the above technical solution, by real-time monitoring of dark current energy consumption and outputting dark current abnormality messages when early warning conditions are triggered, vehicle users or maintenance personnel can quickly know the abnormal condition of the battery so that they can take corresponding measures to avoid problems such as vehicle failure to start normally or battery damage due to excessive battery power consumption.

[0219] In some embodiments, the method provided by the embodiments of the present application may further include: monitoring the health status of the low-voltage battery, wherein the health status of the low-voltage battery may be used to indicate the life status of the low-voltage battery.

[0220] In one possible implementation, the server may obtain multiple charge and discharge parameters corresponding to the low-voltage battery voltage and the vehicle's ambient temperature within a second preset time period from a low-voltage battery charge and discharge parameter map. If the number of target charge and discharge parameters among the multiple charge and discharge parameters exceeds a second threshold, the server may send a low-voltage battery health warning message to the vehicle and terminal device to alert the user that the low-voltage battery's lifespan is low.

[0221] The target charge and discharge parameter value is less than the discharge parameter threshold. The charge and discharge parameters are used to evaluate the life status of the low-voltage battery.

[0222] In the embodiment of the present application, the second quantity threshold can be determined according to actual needs. For example, the second quantity threshold can be 5, 10, 20, etc., which is not limited to this.

[0223] For example, assume that the second quantity threshold is 3. Assume that in the time period t1-t5, among the 5 charge and discharge parameters, 4 charge and discharge parameters are greater than the charge and discharge threshold. In this case, the service end can send a low-voltage battery health warning message to the vehicle and the terminal device.

[0224] Based on the above technical solution, the actual life status of the battery can be comprehensively and accurately evaluated through real-time charging and discharging parameters. When early warning conditions are triggered, the battery life can be extended by discovering battery health problems in advance and taking corresponding measures.

[0225] In some embodiments, if a vehicle detects that it cannot communicate with a service provider, the vehicle can determine whether the low-voltage battery needs to be charged based on the operating information of the low-voltage device and the current state of the vehicle. If the low-voltage battery needs to be charged, the low-voltage battery is charged using the DC converter.

[0226] In one possible implementation method, the vehicle can refer to the methods in S302 and S304 above to determine whether the low-voltage battery needs to be charged. If it is determined that the low-voltage battery needs to be charged, the low-voltage battery is charged through a DC conversion device, which will not be repeated here.

[0227] If the vehicle is awake but the remaining discharge time and / or voltage of the low-voltage battery have not been detected to meet the requirements for charging, the vehicle can determine a future wake-up time based on historical dark current energy consumption and the current remaining energy in the low-voltage battery. A low-level scheduled vehicle wake-up task can then be established based on the future wake-up time. The task will then wake the vehicle at the future wake-up time and determine whether the low-voltage battery needs to be charged based on the vehicle's current low-voltage device operating information.

[0228] In one possible implementation method, when the vehicle can communicate with the server, the vehicle can send information such as the operating parameters of the low-voltage equipment during the period when it is not communicating with the server, the remaining energy and remaining discharge time of the low-voltage battery, dark current energy consumption power, etc. to the server.

[0229] Based on the above technical solution, this application can detect that the vehicle cannot communicate with the server, and the vehicle can still independently determine whether to charge the low-voltage battery based on the operating information of its own low-voltage equipment and the current status of the vehicle. This allows the vehicle to ensure the normal operation of the charging function in the event of a communication failure, avoiding the situation where the low-voltage battery cannot be charged due to a lack of communication with the server, and ensuring the autonomy and stability of the vehicle's energy supply.

[0230] In some embodiments, the method provided by the embodiments of the present application may further include: the vehicle may determine the energy consumption power of the low-voltage electrical equipment based on the current and voltage of the low-voltage electrical equipment.

[0231] In the embodiment of the present application, low-voltage electrical equipment may include electrical equipment directly powered by a low-voltage battery terminal (i.e., Class A electrical equipment) and electrical equipment powered by pins of other electrical equipment (i.e., Class B electrical equipment).

[0232] Among them, such as Figure 9As shown in the figure, Class A and Class B electrical equipment can be divided into the following categories based on whether the power input / output terminals of low-voltage electrical equipment have input / output current acquisition capabilities. Class A electrical equipment includes Class A1 F101 and Class A2 F102 electrical equipment. Class B electrical equipment includes Class B1 F201, Class B2 F202, Class B3 F203, and Class B4 F204 electrical equipment.

[0233] 1-1. Class A1 F101 electrical equipment.

[0234] Among them, Class A1 F101 electrical equipment can be directly powered by a low-voltage battery pile, and the power input end of the electrical equipment does not have the input current collection capability.

[0235] 1-2. Category A2 F102 electrical equipment.

[0236] Among them, Class A2 F102 electrical equipment can be directly powered by a low-voltage battery pile, and the power input end of the electrical equipment has the ability to collect input current.

[0237] 1-3. Category B1 F201 electrical equipment.

[0238] Among them, the B1 type F201 electrical device 2 is powered by the pins of the electrical device 1, and the power input end of the electrical device 1 has the current collection capability.

[0239] 1-4, Class B2 F202 electrical equipment.

[0240] Among them, the B2 type F202 electrical device 2 is powered by the pins of the electrical device 1. The power input end of the electrical device 1 does not have the current collection capability, and the power output end of the electrical device 1 has the current collection capability.

[0241] 1-5. Category B3 F203 electrical equipment.

[0242] Among them, the B3 type F203 electrical device 2 is powered by the pins of the electrical device 1. The power input / output end of the electrical device 1 does not have the current collection capability, and the power input end of the electrical device 2 has the current collection capability.

[0243] 1-6, Class B4 F204 electrical equipment.

[0244] Among them, the B4 type F204 electrical device 2 is powered by the pins of the electrical device 1. The power input / output end of the electrical device 1 does not have the current collection capability, and the power input end of the electrical device 2 does not have the current collection capability.

[0245] It should be noted that if Figure 10As shown in the figure, the power supply process is as follows: The DC-DC converter converts the high-voltage DC current of the power battery into a low-voltage DC current, which charges the low-voltage battery. The low-voltage battery can then directly power Class A devices, while Class B devices can be powered by other devices. The power battery can also power other high-voltage devices.

[0246] One possible implementation method is Figure 11 As shown, each electrical device can send its own energy consumption power to the vehicle, and the vehicle can determine the energy consumption power of the low-voltage electrical devices of the entire vehicle based on the energy consumption power of each electrical device. Figure 9 The energy consumption power calculation standards for different electrical equipment can refer to the following Table 1.

[0247] Table 1 Calculation criteria for energy consumption of different electrical equipment

[0248]

[0249] The above mainly introduces the solution provided by the embodiment of the present invention from the perspective of method. In order to realize the above functions, the resource scheduling device or electronic device includes hardware structures and / or software modules corresponding to the execution of each function. Those skilled in the art should easily realize that, in combination with the units and algorithm steps of each example described in the embodiments disclosed herein, the present invention can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed in the form of hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of the present invention.

[0250] Figure 11 A block diagram of a battery charging device provided in an embodiment of the present application is applied to a server, such as Figure 11 As shown, the device includes: a communication unit 1101 and a determination unit 1102.

[0251] The communication unit 1101 is used to receive operating information of the low-voltage equipment of the vehicle and the current status of the vehicle; the low-voltage equipment includes a low-voltage battery and a DC conversion device.

[0252] The determining unit 1102 is configured to determine whether the low-voltage battery needs to be charged based on the operating information of the low-voltage device and the current state of the vehicle.

[0253] The communication unit 1101 is further configured to send a high-voltage power-on instruction to the vehicle when it is determined that the low-voltage battery needs to be charged, so that the vehicle charges the low-voltage battery through the DC conversion device.

[0254] In one possible manner, the determining unit 1102 is further configured to determine whether the low-voltage battery needs to be charged based on the current state of the vehicle and energy information of the low-voltage battery.

[0255] In one possible embodiment, the determining unit 1102 is further configured to, when the current state of the vehicle is the awake state, determine that the low-voltage battery needs to be charged if the voltage of the low-voltage battery is less than or equal to the voltage threshold and / or the remaining discharge time of the low-voltage battery is less than or equal to the discharge time threshold. Determine that the low-voltage battery does not need to be charged if the voltage of the low-voltage battery is greater than the voltage threshold and / or the remaining discharge time of the low-voltage battery is greater than the discharge time threshold.

[0256] In one possible embodiment, the determining unit 1102 is further configured to, when the current state of the vehicle is a dormant state, determine that the low-voltage battery needs to be charged if the remaining discharge time of the low-voltage battery is less than or equal to a discharge time threshold, and determine that the low-voltage battery does not need to be charged if the remaining discharge time of the low-voltage battery is greater than the discharge time threshold.

[0257] In one possible manner, the determining unit 1102 is further configured to determine the remaining discharge time of the low-voltage battery based on the operating information of the low-voltage device, the current operating state of the vehicle, and the target energy consumption compensation parameter.

[0258] In one possible embodiment, the determination unit 1102 is also used to determine the current remaining energy of the low-voltage battery based on the voltage of the low-voltage battery, the output power and working status of the DC conversion device, the energy consumption power of the low-voltage electrical equipment, and the target energy consumption compensation parameters.

[0259] In one possible manner, the determining unit 1102 is further configured to determine a remaining discharge time of the low-voltage battery based on a current operating state of the vehicle and a current remaining energy of the low-voltage battery.

[0260] In one possible manner, the determination unit 1102 is further configured to determine the target energy consumption power of the low-voltage electrical equipment based on the energy consumption power of the low-voltage electrical equipment and the target energy consumption compensation parameter when the current state of the vehicle is the awake state.

[0261] In one possible manner, the determining unit 1102 is further configured to determine a remaining discharge time of the low-voltage battery based on the current remaining energy of the low-voltage battery and the target energy consumption power of the low-voltage electrical equipment.

[0262] In one possible manner, the determining unit 1102 is further configured to, when the current state of the vehicle is a dormant state, determine the remaining energy of the low-voltage battery when the vehicle enters the dormant state and the remaining energy when the vehicle exits the dormant state.

[0263] In one possible manner, the determining unit 1102 is further configured to determine the dark current energy consumption power of the low-voltage battery based on the remaining energy of the low-voltage battery when the vehicle enters a dormant state and the remaining energy of the low-voltage battery when the vehicle exits a dormant state.

[0264] In one possible manner, the determining unit 1102 is further configured to determine the remaining discharge time of the low-voltage battery based on the dark current energy consumption power and the current remaining energy of the low-voltage battery.

[0265] Figure 12 A block diagram of another battery charging device provided in an embodiment of the present application, which is applied to a vehicle, such as Figure 12 As shown, the device includes: a transceiver unit 1201 and a responding unit 1202.

[0266] The transceiver unit 1201 is used to send the operating information of the low-voltage equipment and the current status of the vehicle to the server, so that the server can determine whether the low-voltage battery needs to be charged based on the operating information of the low-voltage equipment and the current status of the vehicle; the low-voltage equipment includes a low-voltage battery and a DC conversion device.

[0267] The transceiver unit 1201 is further configured to receive a high-voltage power-on instruction sent by the server; the high-voltage power-on instruction is sent by the server when it determines that the low-voltage battery needs to be charged.

[0268] The response unit 1202 is configured to charge the low-voltage battery via the DC conversion device in response to the high-voltage power-on instruction.

[0269] Figure 13 This is a block diagram of an electronic device provided in an embodiment of the present application. Figure 13 As shown, the electronic device includes but is not limited to: a processor 1301 and a memory 1302 .

[0270] The memory 1302 is configured to store executable instructions of the processor 1301. It is understood that the processor 1301 is configured to execute instructions to implement the battery charging method in the above embodiment.

[0271] It should be noted that those skilled in the art can understand that Figure 13 The electronic device structure shown in the figure does not limit the electronic device, and the electronic device may include Figure 13 More or fewer components may be shown, or certain components may be combined, or the components may be arranged differently.

[0272] The processor 1301 is the control center of the electronic device. It uses various interfaces and lines to connect the various parts of the entire electronic device. By running or executing software programs and / or modules stored in the memory 1302 and calling data stored in the memory 1302, it performs various functions of the electronic device and processes data, thereby monitoring the electronic device as a whole. The processor 1301 may include one or more processing units. Optionally, the processor 1301 may integrate an application processor and a modem processor, wherein the application processor mainly processes the operating system, user interface, and application programs, and the modem processor mainly handles wireless communications. It is understandable that the above-mentioned modem processor may not be integrated into the processor 1301.

[0273] Memory 1302 can be used to store software programs and various data. Memory 1302 may primarily include a program storage area and a data storage area. The program storage area may store an operating system and application programs required by at least one functional module (such as a determination unit, a processing unit, etc.). Furthermore, memory 1302 may include high-speed random access memory and non-volatile memory, such as at least one disk storage device, flash memory device, or other non-volatile solid-state storage device.

[0274] In an exemplary embodiment, a computer-readable storage medium including instructions is further provided, such as a memory 1302 including instructions. The instructions can be executed by a processor 1301 of an electronic device to implement the method in the above embodiment.

[0275] In actual implementation, Figure 11 The communication unit 1101 and the determination unit 1102 and Figure 12 The functions of the transceiver unit 1201 and the response unit 1202 can be Figure 13 The processor 1301 in the embodiment calls the computer program stored in the memory 1302. The specific execution process can be referred to the description of the method part in the above embodiment, which will not be repeated here.

[0276] Optionally, the computer-readable storage medium may be a non-transitory computer-readable storage medium, for example, the non-transitory computer-readable storage medium may be a read-only memory (ROM), a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, etc.

[0277] In an exemplary embodiment, the present application also provides a computer program product including one or more instructions, which can be executed by the processor 1301 of the electronic device to implement the method in the above embodiment.

[0278] It should be noted that when the instructions in the above-mentioned computer-readable storage medium or one or more instructions in the computer program product are executed by the processor of the electronic device, the various processes of the above-mentioned method embodiment are implemented and the same technical effect as the above-mentioned method can be achieved. To avoid repetition, they will not be repeated here.

[0279] Through the description of the above implementation methods, technical personnel in the relevant field can clearly understand that for the convenience and simplicity of description, only the division of the above-mentioned functional modules is used as an example. In actual applications, the above-mentioned functions can be assigned to different functional modules as needed, that is, the internal structure of the device can be divided into different functional modules to complete all or part of the functions described above.

[0280] In the several embodiments provided in this application, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are merely schematic. For example, the division of modules or units is only a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another device, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0281] Units described as separate components may or may not be physically separate, and components shown as units may be one physical unit or multiple physical units, that is, they may be located in one place or distributed in multiple places. Some or all of the units may be selected according to actual needs to achieve the purpose of the present embodiment.

[0282] In addition, the functional units in the various embodiments of the present application may be integrated into a single processing unit, or each unit may exist physically separately, or two or more units may be integrated into a single unit. The aforementioned integrated units may be implemented in the form of hardware or software functional units.

[0283] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a readable storage medium. Based on this understanding, the technical solution of the embodiment of the present application, or the part that contributes to the existing technology, or all or part of the technical solution can be embodied in the form of a software product. The software product is stored in a storage medium and includes a number of instructions for causing a device (which can be a single-chip microcomputer, chip, etc.) or a processor to execute all or part of the steps of the various embodiments of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, ROM, RAM, disk or optical disk, etc. Various media that can store program code.

[0284] The above are only specific embodiments of the present application, but the scope of protection of the present application is not limited thereto. Any changes or replacements within the technical scope disclosed in this application should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. A battery charging method, characterized in that: Applied to the server, the method includes: Receive operating information of low-voltage equipment from the vehicle and the current state of the vehicle; the low-voltage equipment includes a low-voltage battery, a DC conversion device and a low-voltage electrical equipment; the operating information of the low-voltage equipment includes energy information of the low-voltage battery; the energy information of the low-voltage battery includes the remaining discharge time of the low-voltage battery, or the remaining discharge time of the low-voltage battery and the voltage of the low-voltage battery; wherein, the process of determining the remaining discharge time of the low-voltage battery includes: obtaining a target energy consumption compensation parameter corresponding to the voltage of the low-voltage battery and the current ambient temperature of the vehicle; determining the current remaining energy of the low-voltage battery based on the voltage of the low-voltage battery, the output power and working state of the DC conversion device, the energy consumption power of the low-voltage electrical equipment and the target energy consumption compensation parameter; determining the remaining discharge time of the low-voltage battery based on the current working state of the vehicle and the current remaining energy of the low-voltage battery; Determining whether the low-voltage battery needs to be charged based on the energy information of the low-voltage battery and the current state of the vehicle; When it is determined that the low-voltage battery needs to be charged, a high-voltage power-on instruction is sent to the vehicle, so that the vehicle charges the low-voltage battery through the DC conversion device.

2. The method according to claim 1, characterized in that The determining whether the low-voltage battery needs to be charged based on the energy information of the low-voltage battery and the current state of the vehicle includes: When the current state of the vehicle is the awake state, if the voltage of the low-voltage battery is less than or equal to a voltage threshold, and / or the remaining discharge time of the low-voltage battery is less than or equal to a discharge time threshold, determining that the low-voltage battery needs to be charged; If the voltage of the low-voltage battery is greater than the voltage threshold, and / or the remaining discharge time of the low-voltage battery is greater than the discharge time threshold, it is determined that the low-voltage battery does not need to be charged.

3. The method according to claim 1, characterized in that The determining whether the low-voltage battery needs to be charged based on the energy information of the low-voltage battery and the current state of the vehicle includes: When the current state of the vehicle is a dormant state, if the remaining discharge time of the low-voltage battery is less than or equal to a discharge time threshold, determining that the low-voltage battery needs to be charged; If the remaining discharge time of the low-voltage battery is greater than the discharge time threshold, it is determined that the low-voltage battery does not need to be charged.

4. The method according to claim 1, wherein The determining, based on the current operating state of the vehicle and the current remaining energy of the low-voltage battery, of the remaining discharge time of the low-voltage battery includes: When the current state of the vehicle is the awake state, determining the target energy consumption power of the low-voltage electrical equipment based on the energy consumption power of the low-voltage electrical equipment and the target energy consumption compensation parameter; The remaining discharge time of the low-voltage battery is determined based on the current remaining energy of the low-voltage battery and the target energy consumption power of the low-voltage electrical equipment.

5. The method according to claim 1, wherein The determining, based on the current operating state of the vehicle and the current remaining energy of the low-voltage battery, of the remaining discharge time of the low-voltage battery includes: When the current state of the vehicle is a dormant state, determining the remaining energy of the low-voltage battery when the vehicle enters the dormant state and the remaining energy when the vehicle exits the dormant state; Determining the dark current energy consumption power of the low-voltage battery based on the remaining energy of the low-voltage battery when the vehicle enters a dormant state and the remaining energy when the vehicle exits a dormant state; the dark current energy consumption power refers to the current consumption of the low-voltage battery after the vehicle enters a dormant state; Based on the dark current energy consumption power and the current remaining energy of the low-voltage battery, the remaining discharge time of the low-voltage battery is determined.

6. The method according to any one of claims 1 to 5, characterized in that The method further comprises: Determining a plurality of dark current energy consumption powers of the low-voltage battery within a first preset time period; the dark current energy consumption power refers to the energy consumed by the low-voltage battery after the vehicle enters a dormant state; If the number of target dark current energy consumption powers among the multiple dark current energy consumption powers is greater than a first number threshold, a dark current abnormality message is output; the value of the target dark current energy consumption power is greater than the energy consumption threshold.

7. The method according to any one of claims 1 to 5, characterized in that The method further comprises: Acquiring a plurality of charge and discharge parameters corresponding to the voltage of the low-voltage battery and the ambient temperature of the vehicle within a second preset time period; the charge and discharge parameters are used to evaluate the life state of the low-voltage battery; If the number of target charge and discharge parameters among the multiple charge and discharge parameters is greater than a second number threshold, a low-voltage battery health warning message is output; and the value of the target charge and discharge parameter is less than the discharge parameter threshold.

8. A battery charging method, characterized in that: Applied to a vehicle, the method comprises: Sending operating information of low-voltage equipment and the current state of the vehicle to a service end, wherein the low-voltage equipment includes a low-voltage battery, a DC conversion device and a low-voltage electrical equipment, and the operating information of the low-voltage equipment includes energy information of the low-voltage battery, so that the service end determines whether the low-voltage battery needs to be charged based on the energy information of the low-voltage battery and the current state of the vehicle; the energy information of the low-voltage battery includes the remaining discharge time of the low-voltage battery, or the remaining discharge time of the low-voltage battery and the voltage of the low-voltage battery; wherein the process of determining the remaining discharge time of the low-voltage battery includes: obtaining a target energy consumption compensation parameter corresponding to the voltage of the low-voltage battery and the current ambient temperature of the vehicle; determining the current remaining energy of the low-voltage battery based on the voltage of the low-voltage battery, the output power and working state of the DC conversion device, the energy consumption power of the low-voltage electrical equipment and the target energy consumption compensation parameter; determining the remaining discharge time of the low-voltage battery based on the current working state of the vehicle and the current remaining energy of the low-voltage battery; receiving a high-voltage power-on instruction sent by the service end; the high-voltage power-on instruction is sent by the service end when it is determined that the low-voltage battery needs to be charged; In response to the high-voltage power-on instruction, the low-voltage battery is charged through the DC conversion device.

9. The method according to claim 8, characterized in that The method further comprises: In the case of detecting that communication with the server is impossible, determining whether the low-voltage battery needs to be charged based on energy information of the low-voltage battery and the current state of the vehicle; When it is determined that the low-voltage battery needs to be charged, the low-voltage battery is charged by the DC conversion device.

10. The method according to claim 9, characterized in that The determining whether the low-voltage battery needs to be charged based on the energy information of the low-voltage battery and the current state of the vehicle includes: When the current state of the vehicle is the awake state, if the voltage of the low-voltage battery is less than or equal to a voltage threshold, and / or the remaining discharge time of the low-voltage battery is less than or equal to a discharge time threshold, determining that the low-voltage battery needs to be charged; If the voltage of the low-voltage battery is greater than the voltage threshold, and / or the remaining discharge time of the low-voltage battery is greater than the discharge time threshold, it is determined that the low-voltage battery does not need to be charged.

11. The method according to claim 9, characterized in that The determining whether the low-voltage battery needs to be charged based on the energy information of the low-voltage battery and the current state of the vehicle includes: When the current state of the vehicle is a dormant state, if the remaining discharge time of the low-voltage battery is less than or equal to a discharge time threshold, determining that the low-voltage battery needs to be charged; If the remaining discharge time of the low-voltage battery is greater than the discharge time threshold, it is determined that the low-voltage battery does not need to be charged.

12. The method according to any one of claims 8 to 11, characterized in that The method further comprises: The energy consumption power of the low-voltage electrical equipment is determined based on the current and voltage of the low-voltage electrical equipment.

13. A battery charging system, characterized in that: The battery charging system includes a vehicle and a service end; Wherein, the server is used to execute the method described in any one of claims 1 to 7, and the vehicle is used to execute the method described in any one of claims 8 to 12.

14. A battery charging device, characterized in that: Applied to a server in a battery charging system, the device comprises: a communication unit and a determination unit; The communication unit is used to receive operating information of low-voltage equipment of the vehicle and the current state of the vehicle; the low-voltage equipment includes a low-voltage battery, a DC conversion device and a low-voltage electrical equipment; the operating information of the low-voltage equipment includes energy information of the low-voltage battery; the energy information of the low-voltage battery includes the remaining discharge time of the low-voltage battery, or the remaining discharge time of the low-voltage battery and the voltage of the low-voltage battery; wherein, the process of determining the remaining discharge time of the low-voltage battery includes: obtaining a target energy consumption compensation parameter corresponding to the voltage of the low-voltage battery and the current ambient temperature of the vehicle; determining the current remaining energy of the low-voltage battery based on the voltage of the low-voltage battery, the output power and working state of the DC conversion device, the energy consumption power of the low-voltage electrical equipment and the target energy consumption compensation parameter; determining the remaining discharge time of the low-voltage battery based on the current working state of the vehicle and the current remaining energy of the low-voltage battery; The determining unit is configured to determine whether the low-voltage battery needs to be charged based on the energy information of the low-voltage battery and the current state of the vehicle; The communication unit is further configured to send a high-voltage power-on instruction to the vehicle when it is determined that the low-voltage battery needs to be charged, so that the vehicle charges the low-voltage battery through the DC conversion device.

15. A battery charging device, characterized in that: Applicable to a vehicle in a battery charging system, the device comprises: a transceiver unit and a response unit; The transceiver unit is used to send operating information of the low-voltage equipment and the current state of the vehicle to the service end, wherein the low-voltage equipment includes a low-voltage battery, a DC conversion device and a low-voltage electrical equipment, and the operating information of the low-voltage equipment includes energy information of the low-voltage battery, so that the service end determines whether the low-voltage battery needs to be charged based on the operating information of the low-voltage equipment and the current state of the vehicle; the energy information of the low-voltage battery includes the remaining discharge time of the low-voltage battery, or the remaining discharge time of the low-voltage battery and the voltage of the low-voltage battery; wherein the process of determining the remaining discharge time of the low-voltage battery includes: obtaining a target energy consumption compensation parameter corresponding to the voltage of the low-voltage battery and the current ambient temperature of the vehicle; determining the current remaining energy of the low-voltage battery based on the voltage of the low-voltage battery, the output power and working state of the DC conversion device, the energy consumption power of the low-voltage electrical equipment and the target energy consumption compensation parameter; determining the remaining discharge time of the low-voltage battery based on the current working state of the vehicle and the current remaining energy of the low-voltage battery; The transceiver unit is further configured to receive a high-voltage power-on instruction sent by the server; the high-voltage power-on instruction is sent by the server when it is determined that the low-voltage battery needs to be charged; The response unit is configured to charge the low-voltage battery through the DC conversion device in response to the high-voltage power-on instruction.

16. A vehicle, characterized in that: The vehicle is configured to execute the method according to any one of claims 8 to 12.

17. An electronic device, characterized in that: include: a processor and a memory for storing instructions executable by the processor; The processor is configured to execute the instructions to implement the method according to any one of claims 1 to 7, or the method according to any one of claims 8 to 12.

18. A computer-readable storage medium, characterized in that When the computer-executable instructions stored in the computer-readable storage medium are executed by a processor of a processing device, the processing device can perform the method according to any one of claims 1 to 7, or the method according to any one of claims 8 to 12.

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