Intelligent automobile emergency power supply starting method and charging management system

Abstract

The invention discloses an intelligent automobile emergency power supply starting method and a charging management system, and relates to the field of automobile power supplies, and the method comprises the steps: obtaining the parameter information of a target automobile storage battery, and the parameter information comprises the storage battery electric quantity, the storage battery voltage and the storage battery current; inputting a first current to the target automobile storage battery; if the target automobile cannot be started within the preset first duration, inputting a second current to the storage battery of the target automobile; if the target automobile cannot be started within a preset second duration, inputting a third current into the storage battery of the target automobile; when the third current exceeds the preset current maximum value, if the target automobile still cannot be started, it is determined that the target automobile breaks down; if the target automobile is successfully started within a preset second duration, recording a second current and a discharge duration; and taking the second current and the discharge time as the optimal starting configuration of the target automobile. By implementing the method, the storage battery state can be intelligently monitored, the current can be dynamically adjusted, and the success rate of emergency start is improved while the service life of the storage battery is protected.

Description

Technical Field

[0001] The present application relates to the field of automobile power supplies, and in particular to an intelligent automobile emergency power supply starting method and a charging management system. Background Art

[0002] With the rapid development of society, cars have become an indispensable means of transportation in people's lives. However, it is inevitable that the battery of a car will run out during use, especially in low temperature environments or when the car has not been used for a long time. Such problems usually require emergency starting measures to solve them, to ensure that the driver can start the car in time and avoid the many inconveniences and potential risks caused by the car's inability to start.

[0003] At present, common methods of emergency starting a car include using jumper wires to connect the battery of another car or using a portable emergency power supply. In these methods, a certain amount of current is usually directly supplied to the battery to try to start the car engine. The core of this method is to give the battery a one-time current output through an external power supply to supplement the problem of insufficient battery power.

[0004] However, existing emergency starting methods have some limitations in actual operation. The one-time current output may not take into account the protection and life of the battery itself, and too large or too small current may damage the battery or fail to start the car safely and effectively. Summary of the invention

[0005] The present application provides an intelligent automobile emergency power supply starting method and charging management system, which are used to intelligently monitor the battery status and dynamically adjust the current, thereby improving the success rate of emergency starting while protecting the battery life.

[0006] In a first aspect, the present application provides an intelligent automobile emergency power supply starting method, which is applied to a charging management system, the method comprising: obtaining parameter information of a target automobile battery, the parameter information including battery power, battery voltage and battery current; when the battery power is lower than a preset power threshold, inputting a first current into the target automobile battery; monitoring whether the target automobile can be started under the first current; if the target automobile cannot be started within a preset first time period, inputting a second current into the target automobile battery, the second current being greater than the first current; monitoring whether the target automobile can be started under the second current; if the target automobile cannot be started within a preset second time period, inputting a third current into the target automobile battery, the third current being greater than the second current; when the third current exceeds a preset current maximum value, if the target automobile still cannot be started, it is determined that a fault has occurred in the target automobile; if the target automobile is successfully started within the preset second time period, recording the second current and discharge time, the discharge time being the time elapsed from the input of the first current to the entire process of successful starting of the target automobile; and using the second current and discharge time as the optimal starting configuration for the target automobile.

[0007] In the above embodiment, when the charging management system detects that the battery power is lower than the preset power threshold, it inputs the first current into the battery of the target vehicle to try to start the target vehicle. If the target vehicle cannot be started within the preset first time, the charging management system will gradually increase the input current so that the target vehicle can be successfully started, and record the input current value when the successful start is successful and the duration of the entire process from the input of the first current to the successful start of the target vehicle by the charging management system. If the target vehicle still cannot be started when the input current exceeds the preset current maximum value, the charging management system determines that the target vehicle has a fault. This solution improves the success rate of emergency start-up by intelligently monitoring the battery status and dynamically adjusting the current. By gradually increasing the current instead of inputting a high current at the beginning, energy waste is reduced and energy utilization efficiency is improved. After successful start-up, the charging management system records the best start-up configuration and provides optimized data support for future start-up attempts. This intelligent automobile emergency power supply start-up method improves start-up efficiency, saves energy, and enhances user experience through intelligent current management and fault diagnosis.

[0008] In combination with some embodiments of the first aspect, in some embodiments, monitoring whether the target vehicle can be started under the first current specifically includes: obtaining the engine speed of the target vehicle under the first current; if the engine speed exceeds a preset speed threshold, determining that the target vehicle has been successfully started; if the engine speed is lower than the preset speed threshold, determining that the target vehicle cannot be started.

[0009] In the above embodiment, the charging management system determines the start status of the target vehicle by comparing the engine speed with the preset speed threshold. The intelligent vehicle emergency start method based on engine speed monitoring provides more accurate start judgment, reduces invalid attempts, improves start efficiency, and helps to have a deeper understanding and maintenance of the vehicle status.

[0010] In combination with some embodiments of the first aspect, in some embodiments, before the step of obtaining parameter information of the target vehicle battery, the parameter information including battery power, battery voltage and battery current, the method also includes: obtaining the historical startup record of the target vehicle battery; determining whether the number of failed startups of the target vehicle battery within a preset time period exceeds a preset number threshold based on the historical startup record; if so, generating a battery replacement recommendation; if not, generating a target vehicle battery health status assessment report.

[0011] In the above embodiment, before the parameter information of the target vehicle battery, the charging management system first obtains the historical startup record of the target vehicle battery, analyzes the number of startup failures of the target vehicle battery within a preset period in the historical startup record, and if the number of startup failures exceeds the preset number threshold, the charging management system generates a suggestion to replace the battery to avoid the difficulty of starting the car due to battery problems. If the number of startup failures does not exceed the preset number threshold, the charging management system will generate a health status assessment report for the target vehicle battery, providing detailed information on the current status of the battery. By analyzing the historical startup records, potential battery problems can be identified in advance, so that preventive maintenance measures can be taken to reduce the possibility of sudden failures; providing a health status assessment report for the target vehicle battery helps users and maintenance personnel make more scientific and reasonable decisions, thereby improving user experience. Compared with the prior art, this intelligent battery management method combining historical data and real-time monitoring provides a more comprehensive and in-depth battery health analysis, which can not only monitor the battery status in real time, but also provide predictive maintenance suggestions based on historical performance, thereby improving the service life of the vehicle battery and the overall vehicle maintenance efficiency.

[0012] In combination with some embodiments of the first aspect, in some embodiments, after the step of obtaining parameter information of the target vehicle battery, the parameter information including battery power, battery voltage and battery current, the method also includes: obtaining the battery temperature of the target vehicle battery; determining the current input range of the target vehicle battery at the battery temperature according to a preset target vehicle battery temperature performance curve, the battery temperature performance curve being used to indicate the current input range that the target vehicle battery can safely accept at different temperatures.

[0013] In the above embodiment, the charging management system fully considers the current input range that the target vehicle battery can safely accept at different battery temperatures, reducing unnecessary attempts. The chemical reaction rate and capacity of the battery will change with temperature. Too low temperature will reduce battery performance, and too high temperature may cause battery aging to increase and even safety hazards. By introducing the target vehicle battery temperature performance curve and incorporating the battery temperature into the decision-making process of the starting strategy, the impact of excessive current on low-temperature batteries can be avoided, and the damage to the battery life caused by continuous high current under high temperature conditions can be prevented. While improving the success rate of starting the target vehicle, the service life of the target vehicle battery is extended to the greatest extent, and the safety of the target vehicle battery is also improved.

[0014] In combination with some embodiments of the first aspect, in some embodiments, after the step of monitoring whether the target vehicle can be started under the first current, the method also includes: obtaining the ambient temperature; when the ambient temperature is lower than the preset temperature threshold, determining whether the target vehicle can be started within a preset third time period, the preset third time period being greater than the preset first time period; if the target vehicle cannot be started within the preset third time period, inputting a second current into the target vehicle battery, the second current being greater than the first current.

[0015] In the above embodiment, the adverse effect of low temperature environment on car starting is taken into consideration. Because under low temperature conditions, it will become difficult to start the engine and the battery output performance will also decrease. If the time standard at normal temperature is still used to judge whether the car start is successful, the car under low temperature conditions may be judged as starting failure prematurely. By introducing the parameter of ambient temperature and correspondingly extending the car start judgment time under low temperature conditions, the charging management system can more objectively and comprehensively evaluate the vehicle start situation under low temperature environment, avoid misjudgment of vehicle status, reduce unnecessary high current attempts, and improve the battery protection level. At the same time, it also provides a more reasonable emergency start service for vehicles in low temperature environments. Through the intelligent judgment mechanism of ambient temperature adaptation, the applicability and success rate of emergency start of the car in special environments are effectively improved.

[0016] In combination with some embodiments of the first aspect, in some embodiments, when the third current exceeds the preset current maximum value, if the target vehicle still cannot start, then after the step of determining that the target vehicle has a fault, the method also includes: sending the battery power, battery voltage and battery current to the vehicle diagnostic system for identification to obtain the fault type; determining the corresponding response strategy in a preset fault response strategy table according to the fault type; and sending the fault type and response strategy to the target vehicle.

[0017] In the above embodiment, the charging management system uses the professional analysis capabilities of the automobile diagnostic system. When the car cannot be successfully started, it no longer simply stops trying, but actively and in-depth investigates the cause of the fault with the automobile diagnostic system, and provides targeted corresponding strategies for the car owner. The preset fault response strategy table enables the charging management system to quickly give response strategies for various common fault types, greatly facilitating the subsequent fault handling process. This innovative model that combines intelligent emergency start-up with intelligent fault diagnosis comprehensively improves the detection rate and processing efficiency of vehicle faults, thereby enabling more intelligent and efficient management and maintenance of vehicles, greatly reducing vehicle use costs and improving vehicle use experience.

[0018] In combination with some embodiments of the first aspect, in some embodiments, after the step of using the input current and discharge time as the optimal starting configuration of the target vehicle, the method also includes: recording the ambient temperature and the optimal starting configuration when different vehicles are successfully started in a preset vehicle environment adaptability starting parameter database; and regularly updating the vehicle environment adaptability starting parameter database.

[0019] In the above embodiment, the charging management system records the ambient temperature of the vehicle when it is successfully started and the optimal startup configuration used this time into the vehicle environmental adaptability startup parameter database, and regularly updates the vehicle environmental adaptability startup parameter database, which greatly improves the scientificity and effectiveness of the emergency startup strategy, and the charging management system can continuously and actively learn to achieve self-optimization. By continuously accumulating real case data of successful startups of different models at various ambient temperatures, the charging management system can grasp the latest vehicle environmental adaptability characteristics in real time and understand the correlation between the optimal startup parameters of different models and environmental conditions. It effectively expands the optimization space and data accumulation capabilities of the intelligent charging management system, making its startup strategy more intelligent and personalized.

[0020] In a second aspect, an embodiment of the present application provides a charging management system, which includes: one or more processors and a memory; the memory is coupled to the one or more processors, the memory is used to store computer program code, the computer program code includes computer instructions, and the one or more processors call the computer instructions to enable the charging management system to execute the method described in the first aspect and any possible implementation method of the first aspect.

[0021] In a third aspect, an embodiment of the present application provides a computer program product comprising instructions. When the computer program product is run on a charging management system, the charging management system executes the method described in the first aspect and any possible implementation method of the first aspect.

[0022] In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium, comprising instructions. When the instructions are executed on a charging management system, the charging management system executes the method described in the first aspect and any possible implementation of the first aspect.

[0023] It can be understood that the charging management system provided in the second aspect, the computer program product provided in the third aspect, and the computer storage medium provided in the fourth aspect are all used to execute the method provided in the embodiment of the present application. Therefore, the beneficial effects that can be achieved can refer to the beneficial effects in the corresponding method, which will not be repeated here.

[0024] One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages: 1. Due to the adoption of an intelligent graded starting scheme, the charging management system can dynamically adjust the input current according to the starting state and ambient temperature of the car, effectively solving the problem of battery damage or starting failure that may be caused by one-time current output in the prior art, thereby realizing efficient and safe emergency starting of the car. The present invention monitors the battery temperature and engine speed, and adaptively adjusts the current input strategy, which not only avoids the impact of excessive current on the battery, but also prolongs the starting judgment time in an unfavorable low-temperature environment, giving the car enough opportunities to try. At the same time, after the car is successfully started, the charging management system records the best starting configuration and accumulates practical cases of different models under different environmental conditions, so that the charging management system can continuously learn and improve, greatly improving the subsequent starting efficiency and success rate. This intelligent graded starting scheme overcomes the drawbacks of existing emergency starting, and while protecting the health of the battery and extending its service life, it significantly improves the flexibility, adaptability and reliability of emergency starting of the car.

[0025] 2. Due to the adoption of an intelligent diagnosis mechanism for startup failures, the charging management can accurately identify the type of failure that cannot be started with the help of the vehicle diagnostic system, effectively solving the problem in the prior art that effective help cannot be provided after startup failure, thereby realizing full-process intelligent emergency services. After multiple failed attempts to start, the present invention does not simply terminate the startup, but actively reports the parameter information of the car battery to the car diagnostic system, uses its professional capabilities to identify the type of fault, and quickly gives the corresponding response strategy according to the preset fault response strategy table, providing targeted help to users in a timely manner. This intelligent diagnosis mechanism extends the depth and breadth of emergency startup services. When the car fails to start successfully, the owner can also get a clear explanation of the cause and subsequent guidance, eliminating the trouble of blindly waiting or self-repair. The charging management system seamlessly connects emergency startup with fault diagnosis, forming a highly intelligent closed-loop vehicle emergency service solution, which greatly improves the timeliness and professionalism of emergency handling. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a flow chart of a method for starting an intelligent automobile emergency power supply in an embodiment of the present application; Figure 2 This is another flow chart of the method for starting the intelligent automobile emergency power supply in the embodiment of the present application; Figure 3 It is a schematic diagram of the structure of a physical device of the charging management system in an embodiment of the present application. DETAILED DESCRIPTION

[0027] The terms used in the following embodiments of the present application are only for the purpose of describing specific embodiments, and are not intended to be used as limitations to the present application. As used in the specification of the present application, the singular expressions "one", "a kind of", "above", "the" and "this" are intended to also include plural expressions, unless there is a clear indication to the contrary in the context. It should also be understood that the term "and / or" used in the present application refers to any or all possible combinations comprising one or more of the listed items.

[0028] In the following, the terms "first" and "second" are used for descriptive purposes only and are not to be understood as suggesting or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features, and in the description of the embodiments of the present application, unless otherwise specified, "plurality" means two or more.

[0029] The following is a description of the process of the method provided by this implementation. Figure 1 , which is a flow chart of the intelligent automobile emergency power supply starting method in the embodiment of the present application.

[0030] S101, obtaining parameter information of a target vehicle battery, the parameter information including battery power, battery voltage and battery current; The battery power can be directly extracted from the display screen. The charging management system collects the battery voltage and battery current of the target vehicle battery through various sensors to facilitate subsequent operations on the target vehicle battery.

[0031] S102, when the battery power is lower than a preset power threshold, inputting a first current into the target vehicle battery; The charging management system compares the battery power with the preset power threshold. If the battery power is lower than the preset power threshold, it indicates that the target vehicle battery is already in a low-power state. The output capacity of the target vehicle battery will be significantly reduced, and the vehicle startup and normal power consumption will be affected. At this time, it is necessary to charge in time to avoid excessive discharge and damage to the battery. The charging management system can input a smaller charging current, namely the first current, to the target vehicle battery to slowly replenish the power. The preset power threshold can be dynamically adjusted according to factors such as battery capacity, vehicle model, and usage environment.

[0032] S103, monitoring whether the target vehicle can be started under the first current; While charging the target battery with the first current, the charging management system will also closely monitor whether the target vehicle can be successfully started. The key to this step is that the charging management system determines whether the charged power can meet the starting requirements of the target vehicle. In order to accurately determine whether the target vehicle can be started under the first current, the charging management system will comprehensively analyze multiple methods, such as the current change of the starter motor, the engine speed, the ignition signal, etc. Under normal circumstances, when the target vehicle starts, the starter motor will absorb a large current (such as 100-200A), and after a few seconds, the engine will start working and gradually rise to the idle speed (such as 800-1000rpm), and the ignition signal will also change regularly. Based on this, the charging management system monitors the entire starting process of the target vehicle in real time. Considering that the starting parameters of different models vary greatly, the charging management system will dynamically adjust the judgment conditions according to the historical starting data and real-time status of the vehicle.

[0033] Optionally, under normal circumstances, monitoring whether the target vehicle can be started under the first current can be achieved in the following way: obtaining the engine speed of the target vehicle under the first current; if the engine speed exceeds a preset speed threshold, determining that the target vehicle has been successfully started; if the engine speed is lower than the preset speed threshold, determining that the target vehicle cannot be started.

[0034] The charging management system is connected to a speed sensor pre-installed on the target vehicle. The speed sensor converts the rotation of the crankshaft or camshaft into an electrical pulse signal. The charging management system calculates the engine speed based on the electrical pulse signal and compares the generator speed with the preset speed threshold. If the engine speed exceeds the preset speed threshold within a certain period of time, the first current input is stopped, and the target vehicle is successfully started; conversely, if the engine speed is lower than the preset speed threshold within a certain period of time, it means that the target vehicle cannot be started.

[0035] S104, if the target vehicle cannot be started within the preset first time period, inputting a second current into the battery of the target vehicle, the second current being greater than the first current; When the charging management system detects that the target car cannot start within the preset first time period, it will automatically increase the input current to the second current. The second current is greater than the first current, and the purpose is to give the target car battery a stronger charging stimulus in order to break through the starting bottleneck caused by insufficient current. It should be noted that the specific values ​​of the first current and the second current can be preset according to factors such as the battery model, capacity, and ambient temperature, or can be calculated in real time by an intelligent algorithm, and this step is not limited to this. For example, if the first current is set to 50A, then the second current can be 80A, of course it can also be 100A, the key is to be significantly higher than the first current. The advantage of doing this is that it not only increases the probability of successful starting, but also avoids the risk of blindly applying excessive current at the beginning by increasing it step by step.

[0036] S105, monitoring whether the target vehicle can be started under the second current; The charging management system then monitors the start-up of the target vehicle under the second current. The charging management system will set aside a preset second duration to observe whether the target vehicle can successfully ignite under the new second current. This monitoring process is similar to step S103 and can be achieved by judging indicators such as engine speed and ignition coil power-on time. The preset second duration of this step should be slightly longer than the preset first duration, for example, it can be 50% to 100% longer than the preset first duration, because a larger current may take longer to achieve a stable effect.

[0037] S106, if the target vehicle cannot be started within the preset second time period, inputting a third current into the battery of the target vehicle, the third current being greater than the second current; If the target car still cannot start within the preset second time, it means that the problem may be more serious. At this time, the charging management system has tried the first current and the second current, and has given a relatively ample starting time, but the target car still cannot start, so the third current is input. The setting of the third current needs to be very cautious. On the one hand, it must be significantly higher than the second current, and on the other hand, it must not exceed the safety tolerance limit of the target car battery and starting circuit. Therefore, the charging management system will set a preset current maximum value, and the third current must not exceed this threshold. For example, if a 60Ah maintenance-free lead-acid battery has an upper limit of 5 seconds of safe starting current that is generally around 600A, then the third current can be set to 400A, which is equivalent to a 6.7C multiple of the battery's nominal capacity. If the target car still cannot start under such a large current impact, it can be preliminarily determined that the target car itself has a fault, not just a problem with the battery power supply.

[0038] S107: When the third current exceeds the preset maximum current value, if the target vehicle still cannot be started, it is determined that a fault occurs in the target vehicle; Under normal circumstances, the target car only needs to provide a certain amount of starting current to overcome the engine resistance, drive the crankshaft to rotate, and start. If the car is not faulty, as the starting current provided increases, the output torque of the starter will also increase. When the torque exceeds the engine resistance, it can start.

[0039] If the current input by the charging management system to the target vehicle exceeds the preset maximum current, it exceeds the normal current required for the target vehicle to start. If the target vehicle still cannot start under such a large current drive, it means that the target vehicle has a fault.

[0040] S108, if the target vehicle is successfully started within the preset second time period, the second current and the discharge time period are recorded, where the discharge time period is the time period from the input of the first current to the successful start of the target vehicle; The charging management system inputs the first current to provide a constant small current to the battery of the target vehicle, with the purpose of slowly replenishing the power and avoiding impact on the battery of the target vehicle. If the target vehicle cannot be started within the preset first time period under the first current, the charging current is increased and the second current is input to the battery of the target vehicle. The second current is larger and can quickly replenish the power in preparation for starting. When the starter obtains enough current, it starts to rotate and meshes with the engine flywheel through gears, driving the engine crankshaft to rotate until the engine starts. The second current provides electrical energy to drive the starter, overcomes the resistance of the engine, and enables the target vehicle to start successfully. The charging management system records the size of the second current and the duration of the entire process from the input of the first current to the battery of the target vehicle to the successful start of the target vehicle.

[0041] S109: Using the second current and discharge time as the optimal starting configuration for the target vehicle.

[0042] The second current and discharge duration are recorded when the target vehicle is successfully started, indicating that the combination of these two parameters can meet the minimum requirements for starting the target vehicle. Therefore, the charging management system can use the second current and discharge duration as the optimal starting configuration for the target vehicle and apply them to the subsequent starting process control.

[0043] When starting and charging the target vehicle, the charging management system can directly set the charging current to the second current recorded, without gradually increasing it from the first current, to save some charging time. The discharge time is used as the basis for judging the start timeout. If the actual discharge time obviously exceeds the recorded discharge time, it can be judged that the start has failed, and the charging can be terminated in time to avoid over-discharge of the battery.

[0044] In the above embodiment, when the charging management system detects that the battery power is lower than the preset power threshold, it inputs the first current into the battery of the target vehicle to try to start the target vehicle. If the target vehicle cannot be started within the preset first time, the charging management system will gradually increase the input current so that the target vehicle can be successfully started, and record the input current value when the successful start is successful and the duration of the entire process from the input of the first current to the successful start of the target vehicle by the charging management system. If the target vehicle still cannot be started when the input current exceeds the preset current maximum value, the charging management system determines that there is a fault in the target vehicle. This solution improves the success rate of emergency start by intelligently monitoring the battery status and dynamically adjusting the current. By gradually increasing the current instead of inputting a high current at the beginning, energy waste is reduced and energy utilization efficiency is improved. After successful start, the charging management system records the best start configuration and provides optimized data support for future start attempts. This intelligent automobile emergency power start method improves start efficiency, saves energy, and enhances user experience through intelligent current management and fault diagnosis.

[0045] The following is a more detailed description of the process of the method provided by this implementation. Figure 2 , is another flow chart of the intelligent automobile emergency power supply starting method in the embodiment of the present application.

[0046] S201, obtaining the historical startup record of the target vehicle battery; The charging management system can obtain the historical startup records of the target vehicle battery through a variety of channels, which can be divided into two categories: on-board collection and cloud storage.

[0047] On-board data collection refers to the use of various sensors and electronic control units installed on the target vehicle to monitor and record the start-up status of the target vehicle battery in real time. The start-up status of the target vehicle battery in the past preset period is the historical start-up record of the target vehicle battery.

[0048] Cloud storage refers to uploading the startup status of the target car battery collected on board to a remote server for centralized storage and management, which is usually achieved by relying on the Internet of Vehicles platform. Modern Internet cars have wireless communication capabilities and can exchange data with cloud servers through cellular networks, Wi-Fi, etc. The massive amount of data generated when the vehicle is started will be uploaded to the cloud in real time or regularly, and classified and stored by user or vehicle. The charging management system can obtain the historical startup records of the target car battery from the cloud through API interfaces or database queries.

[0049] On-board data collection and cloud storage can also complement and collaborate. On the one hand, on-board data collection can make up for the shortcomings of cloud storage in terms of data real-time and continuity; on the other hand, cloud storage can make up for the limitations of single-vehicle data in terms of sample size and computing power. Therefore, the charging management system can adopt a vehicle-side + cloud architecture, which can not only use local data for rapid response, but also use cloud data for global optimization.

[0050] S202, determining whether the number of failed start-up of the target vehicle battery within a preset period exceeds a preset number threshold according to the historical start-up records; The charging management system counts the total number of times the target vehicle battery is started within a preset period in the historical start-up record, as well as the number of successful starts and the number of failed starts of the target vehicle battery. For example, the charging management system obtains the historical start-up record of the target vehicle battery, and the historical start-up record records that the target vehicle battery was started 50 times in the past month, of which 43 were successful and 7 failed. Assuming that the preset number threshold is 30 times, the number of failed starts of the target vehicle battery is compared with the preset number threshold.

[0051] It should be noted that the preset number of thresholds can be formulated according to actual conditions and is not limited here.

[0052] S203: If yes, generate a battery replacement suggestion; If the number of failed start-up attempts of the target vehicle battery exceeds a preset threshold, it indicates that there may be some problems with the target vehicle battery, such as battery aging and failure or serious battery power loss. At this time, the charging management system generates a battery replacement recommendation to remind the owner to pay attention to battery health.

[0053] S204, if not, generating a target vehicle battery health status assessment report; If the number of failed start-up attempts of the target vehicle battery does not exceed the preset threshold, it means that the battery is still in good condition and can continue to be used. However, in order to comprehensively evaluate the health status of the target vehicle battery and prevent problems before they occur, the charging management system will generate a detailed target vehicle battery health status assessment report. The target vehicle battery health status assessment report usually includes the following main parts: Basic information: record the battery's brand, model, production date, usage time and other basic parameters; Usage: Statistics on battery charge and discharge times, average discharge depth, cumulative working hours and other usage data; Performance indicators: List the key performance indicators of the battery, such as rated capacity, actual capacity, internal resistance, self-discharge rate, etc.; Startup record: details the battery startup status within a preset period (e.g. one month), including the number of successes, number of failures, average startup voltage, average startup time, etc. Environmental factors: record the ambient temperature, humidity and other conditions of the battery; Abnormal conditions: mark the warnings or faults that occurred during the use of the battery (such as low voltage, overcharge, etc.); Health score: Based on the above indicators and data, a comprehensive health score is given; Maintenance suggestions: Based on the actual situation of the battery, some personalized maintenance suggestions are given (such as adjusting the charging mode, updating the maintenance cycle, adding protective measures, etc.).

[0054] The target vehicle battery health status assessment report not only allows car owners to gain an in-depth understanding of the health status of the target vehicle battery, but also allows maintenance personnel to more accurately judge the remaining life and potential risks of the target vehicle battery and make the most economical and effective maintenance decisions.

[0055] S205, obtaining parameter information of the target vehicle battery, the parameter information including battery power, battery voltage and battery current; For details, please refer to step S101, which will not be described in detail here.

[0056] S206, obtaining the battery temperature of the target vehicle battery; The charging management system obtains the battery temperature of the target vehicle battery according to a temperature sensor arranged on the target vehicle battery.

[0057] S207, determining a current input range of the target automobile battery at the battery temperature according to a preset target automobile battery temperature performance curve, wherein the battery temperature performance curve is used to indicate a current input range that the target automobile battery can safely accept at different temperatures; The target vehicle battery temperature performance curve shows the charging current range that the target vehicle battery can safely accept at different battery temperatures. This target vehicle battery temperature performance curve is usually provided by the battery manufacturer and reflects the comprehensive results of the battery material characteristics and design process. The charging management system will store the target vehicle battery temperature performance curve in the internal database as the basic basis for adjusting the charging strategy of the target vehicle battery.

[0058] Specifically, the target automotive battery temperature performance curve is usually a two-dimensional coordinate graph, with the horizontal axis representing the battery temperature and the vertical axis representing the charging current. The curve represents the maximum charging current that the target automotive battery can safely accept at different temperatures. For example, the target automotive battery temperature performance curve may show that when the battery temperature is 25°C, the target automotive battery can accept a maximum charging current of 50A, but at a battery temperature of -10°C, the maximum charging current needs to be reduced to 20A, and at a battery temperature of 40°C, the maximum charging current can be increased to 60A. This reflects the dependence of the battery chemical reaction rate and electrolyte conductivity on the battery temperature.

[0059] In actual applications, the charging management system will measure the battery temperature of the target vehicle in real time, and then find the corresponding point on the battery temperature performance curve of the target vehicle to determine the optimal charging current range under the current battery temperature. Usually, this range will have an upper and lower limit, such as an upper limit of 90% of the maximum charging current and a lower limit of 50% of the maximum charging current, to leave a certain safety margin.

[0060] S208, when the battery power is lower than a preset power threshold, inputting a first current into the target vehicle battery; For details, please refer to step S102, which will not be described in detail here.

[0061] S209, monitoring whether the target vehicle can be started under the first current; For details, please refer to step S103, which will not be described in detail here.

[0062] S210, obtaining the ambient temperature; The charging management system can obtain the ambient temperature through the vehicle temperature sensor. Modern cars are usually equipped with multiple temperature sensors in different locations, such as the battery compartment, engine compartment, and interior of the car. These temperature sensors can measure the temperature of the environment in real time and transmit the ambient temperature to the charging management system through the vehicle network (such as the CAN bus). The charging management system can select the most appropriate temperature value as a representative of the ambient temperature based on the location and purpose of different temperature sensors. Other methods of obtaining the ambient temperature are not listed here.

[0063] S211, when the ambient temperature is lower than a preset temperature threshold, determining whether the target vehicle can be started within a preset third time period, the preset third time period being greater than the preset first time period; When the ambient temperature is lower than the preset temperature threshold, it means that the external temperature conditions at this time may have an adverse effect on the starting performance of the target vehicle battery. In this case, in order to further improve the accuracy of the judgment, the charging management system needs to appropriately extend the time for judging whether the target vehicle can be started, so as to observe and evaluate the actual starting process of the target vehicle. The preset third time is usually longer than the normal starting time, that is, the preset first time, to leave enough margin.

[0064] For example, assuming that under normal circumstances, the average starting time of the target vehicle is 2 seconds (the first preset time length), the charging management system may set the third preset time length to 5 seconds. Within these 5 seconds, if the target vehicle can be successfully started, it means that the output capacity of the target vehicle battery and the starting capacity of the target vehicle meet the requirements. However, if the vehicle has not been successfully started within 5 seconds, it means that the target vehicle has failed to start.

[0065] In actual application, the setting of the preset third time duration needs to take into account multiple factors, such as vehicle type, battery type, environmental conditions, etc. For example, for some large-displacement, high-compression ratio engines, it is more difficult to start at low temperatures, and a longer preset third time duration may be required; while for some models equipped with battery insulation devices, their low-temperature starting capabilities are stronger, and the preset third time duration can be relatively shorter.

[0066] S212: if the target vehicle cannot be started within the preset third time period, inputting a second current into the battery of the target vehicle, the second current being greater than the first current; If the target vehicle still cannot be started within the preset third time period, it means that the output capacity of the target vehicle battery may not meet the starting requirements. In this case, the charging management system will input a larger current, namely the second current, to the target vehicle battery in order to increase the output voltage and output current of the target vehicle battery and enhance its starting ability. The principle of doing so is: Increasing the charging current can quickly increase the state of charge of the target vehicle battery, thereby increasing the open circuit voltage. For example, a battery with a half-charged state (50% SoC) may have an open circuit voltage of only 12.2V, but charging it to 80% SoC can increase the open circuit voltage to 12.6V.

[0067] S213: If the target vehicle cannot be started within the preset first time period, input a second current into the battery of the target vehicle, where the second current is greater than the first current; For details, please refer to step S104, which will not be described in detail here.

[0068] S214, monitoring whether the target vehicle can be started under the second current; For details, please refer to step S105, which will not be described in detail here.

[0069] S215: If the target vehicle cannot be started within the preset second time period, inputting a third current into the battery of the target vehicle, the third current being greater than the second current; For details, please refer to step S106, which will not be described in detail here.

[0070] S216: When the third current exceeds the preset current maximum value, if the target vehicle still cannot be started, it is determined that the target vehicle has a fault; For details, please refer to step S107, which will not be described in detail here.

[0071] S217, sending the battery power, battery voltage and battery current to the vehicle diagnostic system for identification to obtain the fault type; The charging management system performs pre-processing such as filtering, calibrating, and normalizing the collected battery power, battery voltage, and battery current, and then sends them to the vehicle diagnostic system via the CAN bus or other vehicle networks.

[0072] The vehicle diagnostic system refers to an electronic control system that monitors and diagnoses the working status of each subsystem of the vehicle. The vehicle diagnostic system is usually composed of an electronic control unit (ECU), sensors, actuators, and communication buses. After receiving the battery power, battery voltage, and battery current sent by the charging management system, a feasible way for the vehicle diagnostic system to identify and determine the fault type is: First, the vehicle diagnostic system checks the integrity, timing, and rationality of the battery charge, battery voltage, and battery current. If any data is found to be missing, delayed, or abnormal, it will be marked as invalid data and will not be included in subsequent analysis.

[0073] Then, some pre-set fault judgment criteria are stored in the automobile diagnostic system, such as voltage lower than XXV, current higher than XXmA, etc. The automobile diagnostic system compares the received battery power, battery voltage and battery current with the preset thresholds respectively. If it is found that the battery power, battery voltage and battery current are beyond the normal range, the corresponding fault type will be determined according to the corresponding fault judgment criteria.

[0074] Other methods of sending the battery power, battery voltage and battery current to the vehicle diagnostic system for identification and obtaining the fault type are not listed here one by one.

[0075] S218, determining a corresponding response strategy in a preset fault response strategy table according to the fault type; The charging management system pre-stores a fault response strategy table, which is a data structure used to store the mapping relationship between fault types and response strategies, usually in the form of a two-dimensional table. Each row of the table corresponds to a fault type, each column corresponds to a response strategy, and the cell at the intersection of the row and column indicates the priority or applicable conditions for the response strategy for the fault type. The following is a simple example of a fault response strategy table: In the above table, the number indicates the priority, and the smaller the number, the higher the priority. "-" means that the response strategy is not applicable to the fault type. For example, for the fault type "low battery", the first response strategy is prompt information, followed by power limitation, and then prohibition of starting, while the emergency braking strategy is not applicable.

[0076] The charging management system may determine a corresponding response strategy from the fault response strategy table according to the fault type obtained in step S217.

[0077] S219, sending the fault type and response strategy to the target vehicle; The charging management system sends the fault type and response strategy to the target vehicle through the vehicle communication network. The current mainstream vehicle communication networks include CAN bus, LIN bus, FlexRay bus, etc., among which CAN bus is the most widely used.

[0078] S220, if the target vehicle is successfully started within the preset second time period, record the second current and the discharge time period, where the discharge time period is the time period from inputting the first current to the target vehicle being successfully started; For details, please refer to step S108, which will not be described in detail here.

[0079] S221, using the second current and discharge time as the optimal starting configuration of the target vehicle; For details, please refer to step S109, which will not be described in detail here.

[0080] S222, recording the ambient temperature and optimal startup configuration of different vehicles when they are successfully started in a preset vehicle environment adaptability startup parameter database; The charging management system defines a vehicle environment adaptability starting parameter database to store the ambient temperature and optimal starting configuration each time the car is successfully started.

[0081] S223. Regularly update the vehicle environment adaptability startup parameter database.

[0082] Regularly updating the vehicle environment adaptability startup parameter database is essential for continuously optimizing the vehicle's startup performance and reliability. Continuously collecting and analyzing the latest startup data helps to discover the shortcomings of the startup strategy and make timely adjustments and improvements. At the same time, as the vehicle parts age and wear, the original optimal startup parameters may no longer be applicable and need to be updated according to actual conditions.

[0083] The charging management system determines a reasonable update cycle of the vehicle environment adaptability starting parameter database according to actual conditions. It can be updated at fixed time intervals, according to the accumulated mileage of the vehicle, or according to the number of starts, which is not limited here.

[0084] In the embodiment of the present application, due to the adoption of an intelligent graded starting scheme, the charging management system can dynamically adjust the input current according to the starting state and ambient temperature of the car, effectively solving the problem of battery damage or starting failure that may be caused by one-time current output in the prior art, thereby realizing efficient and safe emergency starting of the car. The present invention monitors the battery temperature and engine speed, and adaptively adjusts the current input strategy, which not only avoids the impact of excessive current on the battery, but also prolongs the starting judgment time in an unfavorable low-temperature environment, giving the car enough opportunities to try. At the same time, after the car is successfully started, the charging management system records the best starting configuration and accumulates practical cases of different models under different environmental conditions, so that the charging management system can continuously learn and improve, greatly improving the subsequent starting efficiency and success rate. This intelligent graded starting scheme overcomes the drawbacks of existing emergency starting, and while protecting the health of the battery and extending its service life, it significantly improves the flexibility, adaptability and reliability of emergency starting of the car.

[0085] At the same time, the charging management system adopts an intelligent diagnosis mechanism for startup failures, so the charging management can accurately identify the type of failure that cannot be started with the help of the automobile diagnostic system, effectively solving the problem of being unable to provide effective help after the startup failure in the prior art, and thus realizing the full process of intelligent emergency service. After multiple failed attempts to start, the present invention does not simply terminate the startup, but actively reports the parameter information of the car battery to the automobile diagnostic system, uses its professional ability to find out the type of fault, and quickly gives the corresponding response strategy according to the preset fault response strategy table, providing targeted help to users in a timely manner. This intelligent diagnosis mechanism extends the depth and breadth of emergency startup services. When the car cannot be started successfully, the owner can also get a clear explanation of the cause and subsequent guidance, eliminating the trouble of blindly waiting or self-repair. The charging management system seamlessly connects emergency startup with fault diagnosis, forming a highly intelligent closed-loop vehicle emergency service solution, which greatly improves the timeliness and professionalism of emergency handling.

[0086] The following describes the charging management system in the embodiment of the present invention from the perspective of hardware processing. Figure 3 , is a schematic diagram of a physical device structure of a charging management system in an embodiment of the present application.

[0087] It should be noted that Figure 3 The structure of the charging management system shown is only an example and should not bring any limitation to the functions and scope of use of the embodiments of the present invention.

[0088] like Figure 3As shown, the charging management system includes a central processing unit (CPU) 301, which can perform various appropriate actions and processes according to the program stored in the read-only memory (ROM) 302 or the program loaded from the storage part 308 to the random access memory (RAM) 303, such as executing the method described in the above embodiment. In RAM 303, various programs and data required for system operation are also stored. CPU 301, ROM 302 and RAM 303 are connected to each other through bus 304. Input / output (I / O) interface 305 is also connected to bus 304.

[0089] The following components are connected to the I / O interface 305: an input section 306 including an audio input device, a button switch, etc.; an output section 307 including a liquid crystal display (LCD) and an audio output device, an indicator light, etc.; a storage section 308 including a hard disk, etc.; and a communication section 309 including a network interface card such as a LAN (Local Area Network) card, a modem, etc. The communication section 309 performs communication processing via a network such as the Internet. A drive 310 is also connected to the I / O interface 305 as needed. A removable medium 311, such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, etc., is installed on the drive 310 as needed so that a computer program read therefrom is installed into the storage section 308 as needed.

[0090] In particular, according to an embodiment of the present invention, the process described above with reference to the flowchart can be implemented as a computer software program. For example, an embodiment of the present invention includes a computer program product, which includes a computer program carried on a computer-readable medium, and the computer program includes a computer program for executing the method shown in the flowchart. In such an embodiment, the computer program can be downloaded and installed from a network through the communication part 309, and / or installed from a removable medium 311. When the computer program is executed by the central processing unit (CPU) 301, various functions defined in the present invention are performed.

[0091] It should be noted that specific examples of computer-readable storage media may include, but are not limited to: an electrical connection with one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM), a flash memory, an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination thereof. In the present invention, a computer-readable storage medium may be any tangible medium containing or storing a program that may be used by or in combination with an instruction execution system, apparatus, or device.

[0092] The flowcharts and block diagrams in the accompanying drawings illustrate the possible architecture, functions and operations of the systems, methods and computer program products according to various embodiments of the present invention. Each box in the flowchart or block diagram may represent a module, a program segment, or a part of a code, and the above-mentioned module, program segment, or a part of a code contains one or more executable instructions for implementing the specified logical functions. It should also be noted that in some alternative implementations, the functions marked in the box may also occur in an order different from that marked in the accompanying drawings.

[0093] Specifically, the charging management system of this embodiment includes a processor and a memory. The memory stores a computer program. When the computer program is executed by the processor, the intelligent automobile emergency power supply starting method provided in the above embodiment is implemented.

[0094] As another aspect, the present invention further provides a computer-readable storage medium, which may be included in the charging management system described in the above embodiment; or may exist independently without being assembled into the charging management system. The above storage medium carries one or more computer programs, and when the above one or more computer programs are executed by a processor of the charging management system, the charging management system implements the intelligent automobile emergency power supply starting method provided in the above embodiment.

[0095] As described above, the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

[0096] As used in the above embodiments, the term "when..." may be interpreted to mean "if..." or "after..." or "in response to determining..." or "in response to detecting...", depending on the context. Similarly, the phrases "upon determining..." or "if (the stated condition or event) is detected" may be interpreted to mean "if determining..." or "in response to determining..." or "upon detecting (the stated condition or event)" or "in response to detecting (the stated condition or event)", depending on the context.

[0097] Those skilled in the art can understand that to implement all or part of the processes in the above-mentioned embodiments, the processes can be completed by computer programs to instruct related hardware, and the programs can be stored in computer-readable storage media. When the programs are executed, they can include the processes of the above-mentioned method embodiments. The aforementioned storage media include: ROM or random access memory RAM, magnetic disk or optical disk and other media that can store program codes.

Claims

1. An intelligent automobile emergency power supply starting method, characterized in that: Applied to a charging management system, the method comprises: Obtaining parameter information of the target vehicle battery, the parameter information including battery power, battery voltage, and battery current; When the battery power is lower than a preset power threshold, inputting a first current into the target vehicle battery; monitoring whether the target vehicle can be started under the first current; If the target vehicle cannot be started within a preset first time period, inputting a second current into the battery of the target vehicle, wherein the second current is greater than the first current; monitoring whether the target vehicle can be started under the second current; If the target vehicle cannot be started within the preset second time period, a third current is input into the battery of the target vehicle, wherein the third current is greater than the second current; When the third current exceeds the preset current maximum value, if the target vehicle still cannot be started, it is determined that the target vehicle has a fault; If the target vehicle is successfully started within the preset second time period, the second current and discharge time period are recorded, where the discharge time period is the time period from the input of the first current to the successful start of the target vehicle; The second current and the discharge time are used as an optimal starting configuration for the target vehicle.

2. The method according to claim 1, characterized in that The monitoring whether the target vehicle can be started under the first current specifically includes: Acquiring the engine speed of the target vehicle under the first current; If the engine speed exceeds a preset speed threshold, determining that the target vehicle is successfully started; If the engine speed is lower than a preset speed threshold, it is determined that the target vehicle cannot be started.

3. The method according to claim 1, characterized in that Before the step of obtaining parameter information of the target vehicle battery, wherein the parameter information includes battery power, battery voltage, and battery current, the method further includes: Get the historical startup records of the target car battery; Determining whether the number of failed start-up of the battery of the target vehicle exceeds a preset number threshold within a preset period of time according to the historical start-up record; If yes, generate a battery replacement suggestion; If not, generate a target vehicle battery health status assessment report.

4. The method according to claim 1, characterized in that After the step of obtaining parameter information of the target vehicle battery, wherein the parameter information includes battery power, battery voltage, and battery current, the method further includes: Obtaining the battery temperature of the target vehicle battery; The current input range of the target automobile battery at the battery temperature is determined according to a preset target automobile battery temperature performance curve, and the battery temperature performance curve is used to indicate the current input range that the target automobile battery can safely accept at different temperatures.

5. The method according to claim 1, characterized in that After the step of monitoring whether the target vehicle can be started under the first current, the method further includes: Get the ambient temperature; When the ambient temperature is lower than a preset temperature threshold, determining whether the target vehicle can be started within the preset third time period, the preset third time period being greater than the preset first time period; If the target vehicle cannot be started within a preset third time period, a second current is input into the battery of the target vehicle, and the second current is greater than the first current.

6. The method according to claim 1, characterized in that After the step of determining that a fault occurs in the target vehicle when the third current exceeds the preset current maximum value and the target vehicle still cannot be started, the method further includes: Sending the battery power, the battery voltage, and the battery current to an automobile diagnostic system for identification to obtain a fault type; Determine a corresponding response strategy in a preset fault response strategy table according to the fault type; The fault type and the response strategy are sent to the target vehicle.

7. The method according to claim 1 or 4, characterized in that: After the step of using the input current and the discharge time as the optimal starting configuration of the target vehicle, the method further includes: The ambient temperature and optimal starting configuration of different vehicles when they are successfully started are recorded in a preset vehicle environment adaptability starting parameter database; The vehicle environment adaptability startup parameter database is updated regularly.

8. A charging management system, characterized in that: The charging management system includes: one or more processors and a memory; the memory is coupled to the one or more processors, the memory is used to store computer program code, the computer program code includes computer instructions, and the one or more processors call the computer instructions to enable the charging management system to execute the method described in any one of claims 1-7.

9. A computer-readable storage medium comprising instructions, characterized in that: When the instruction is executed on a charging management system, the charging management system is caused to execute the method according to any one of claims 1 to 7.

10. A computer program product, characterized in that When the computer program product runs on a charging management system, the charging management system is enabled to perform the method according to any one of claims 1 to 7.

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