Method and device for repairing vehicle-mounted battery, electronic equipment and medium

Abstract

The method, apparatus, electronic device, and medium for repairing vehicle batteries provided in this application include: acquiring operational data of the vehicle battery; the operational data includes a first interval duration from the last repair completion time to the current time and the total discharge amount of the battery from the last repair completion time to the current time; detecting whether the vehicle battery has reached a slightly sulfated state based on the first interval duration and the total discharge amount; if it has reached a slightly sulfated state, then treating the vehicle battery as a battery to be repaired, and performing repair processing on the battery to be repaired based on the charging equipment on the vehicle. This application can reduce the impact on the normal operation of the vehicle during repair, thereby improving the user experience.

Description

Technical Field

[0001] This application relates to the field of battery technology, and in particular to a method, apparatus, electronic device and medium for repairing vehicle batteries. Background Technology

[0002] New energy vehicles have become important means of transportation, such as pure electric vehicles, hybrid electric vehicles, and fuel cells. These vehicles are equipped with batteries, such as lithium batteries or lead-acid batteries. The batteries provide power for starting the vehicle and applying high voltage, and at the same time provide static current for low-voltage electrical appliances when the vehicle is parked and the network is asleep, thereby improving the stability of vehicle operation.

[0003] In actual use, if the vehicle battery is not charged in time or is undercharged for a long time, lead sulfate crystals will appear on the negative terminal of the battery. This phenomenon is called battery sulfation. Battery sulfation will reduce the capacity of the capacitor, thereby reducing the performance of the battery.

[0004] In related technologies, when the battery is deeply sulfated, meaning its capacity is low, it is taken to a specialized service station to repair the sulfated battery using a low-current constant-current charging method. However, during the repair process, the battery cannot be used normally in the vehicle, and the repair time is long, resulting in a poor user experience. Summary of the Invention

[0005] This application provides a method, apparatus, electronic device, and medium for repairing vehicle batteries, aiming to solve the technical problem that the vehicle battery cannot be used normally during the repair process, and the repair time is too long, resulting in a poor user experience.

[0006] In a first aspect, this application provides a method for repairing an on-board battery, comprising: acquiring operational data of the on-board battery; the operational data including a first interval duration from the last time the battery was repaired to the current time and the total discharge amount of the battery from the last time the battery was repaired to the current time; detecting whether the on-board battery has reached a slightly sulfated state based on the first interval duration and the total discharge amount; if it has reached a slightly sulfated state, then designating the on-board battery as a battery to be repaired, and performing repair processing on the battery to be repaired based on the charging equipment on the vehicle.

[0007] In some embodiments, detecting whether the vehicle battery has reached a slightly sulfated state based on the first interval duration and the total discharge amount includes: if the first interval duration reaches a first preset duration, or the preset discharge amount reaches a preset discharge amount, then it is determined that the vehicle battery has reached a slightly sulfated state; the preset discharge amount is set according to the battery capacity; otherwise, it is determined that the vehicle battery is not in a slightly sulfated state.

[0008] In some embodiments, performing repair processing on the battery to be repaired based on the on-board charging device includes: obtaining the current temperature of the battery to be repaired; obtaining a charging voltage corresponding to the current temperature of the battery to be repaired based on the charging voltage corresponding to each temperature of the battery, as a repair charging voltage; wherein the charging voltage is negatively correlated with the temperature of the battery; controlling the charging device to charge the battery to be repaired based on the repair charging voltage until the repair is completed or the process is forcibly terminated; the repair charging voltage is greater than the normal charging voltage when the battery is normally charged.

[0009] In some embodiments, after controlling the charging device to charge the battery to be repaired based on the repair charging voltage, the method further includes: detecting whether the previous repair was completed; if the previous repair was completed, detecting whether the repair time of the current repair reached a second preset time; if it did, determining that the current repair was completed; if the previous repair was not completed, obtaining the cumulative repair time between the last completed repair and the current repair, and if the sum of the cumulative repair time and the repair time of the current repair reached a third preset time, determining that the current repair was completed.

[0010] In some embodiments, after controlling the charging device to charge the battery to be repaired based on the repair charging voltage, the method may further include: obtaining the charging current of the battery to be repaired at a fourth preset duration; the fourth preset duration is not greater than the second preset duration; if the charging current of the battery to be repaired is less than a preset current, triggering an alarm mechanism to inform the user that the battery to be repaired is in a deep sulfation state.

[0011] In some embodiments, performing repair processing on the battery to be repaired based on the on-board charging device includes: detecting whether the temperature of the battery to be repaired exceeds a preset temperature and whether the low-voltage power supply system is abnormal; the low-voltage power supply system includes the on-board battery, the body controller, and the charging device; if the temperature of the battery to be repaired does not exceed the preset temperature and the power supply system is not abnormal, then performing repair processing on the battery to be repaired based on the on-board charging device; otherwise, no processing is performed.

[0012] Secondly, this application provides a vehicle battery repair device, comprising: an acquisition module for acquiring operational data of the vehicle battery; the operational data including a first interval duration from the last repair completion time to the current time and the total discharge amount of the battery from the last repair completion time to the current time; a detection module for detecting whether the vehicle battery has reached a slightly sulfated state based on the first interval duration and the total discharge amount; and a repair module for, if a slightly sulfated state is reached, designating the vehicle battery as a battery to be repaired and performing repair processing on the battery to be repaired based on the charging equipment on the vehicle.

[0013] In some embodiments, the detection module is specifically used to determine that the vehicle battery has reached a slightly sulfated state if the first interval duration reaches a first preset duration, or the preset discharge amount reaches a preset discharge amount; the preset discharge amount is set according to the capacity of the battery; otherwise, it is determined that the vehicle battery is not in a slightly sulfated state.

[0014] In some embodiments, the repair module is specifically used to obtain the current temperature of the battery to be repaired; the repair module is further used to obtain the charging voltage corresponding to the current temperature of the battery to be repaired based on the charging voltage corresponding to each temperature of the battery, as the repair charging voltage; wherein, the charging voltage is negatively correlated with the temperature of the battery; the repair module is further used to control the charging device to charge the battery to be repaired based on the repair charging voltage until the repair is completed or the battery is forcibly exited; the repair charging voltage is greater than the normal charging voltage when the battery is normally charged.

[0015] In some embodiments, the repair module is further configured to, after controlling the charging device to charge the battery to be repaired based on the repair charging voltage, detect whether the previous repair was completed; if the previous repair was completed, detect whether the repair time of the current repair reached a second preset time; if it did, determine that the current repair was completed; if the previous repair was not completed, obtain the cumulative repair time between the last completed repair and the current repair; if the sum of the cumulative repair time and the repair time of the current repair reaches a third preset time, determine that the current repair was completed.

[0016] In some embodiments, the detection module is further configured to, after controlling the charging device to charge the battery to be repaired based on the repair charging voltage, obtain the charging current of the battery to be repaired under the second preset time; if the charging current of the battery to be repaired is less than the preset current, trigger an alarm mechanism to inform the user that the battery to be repaired is in a deep sulfation state.

[0017] In some embodiments, the repair module is further configured to detect whether the temperature of the battery to be repaired exceeds a preset temperature and whether the low-voltage power supply system is abnormal; the low-voltage power supply system includes the vehicle battery, the body controller, and the charging device; the repair module is further configured to perform repair processing on the battery to be repaired based on the charging device on the vehicle if the temperature of the battery to be repaired does not exceed the preset temperature and the power supply system is not abnormal; otherwise, no processing is performed.

[0018] Thirdly, this application provides an electronic device, including: a processor, and a memory communicatively connected to the processor; the memory stores computer-executable instructions; the processor executes the computer-executable instructions stored in the memory to implement the method described above.

[0019] Fourthly, this application provides a computer-readable storage medium storing computer-executable instructions, which, when executed by a processor, are used to implement the method described above.

[0020] The vehicle battery repair method, apparatus, electronic device, and medium provided in this application acquire the vehicle battery's operating data and, based on a first interval duration and total discharge amount in the operating data, detect whether the vehicle battery has reached a state of mild sulfation. If it has reached a state of mild sulfation, the vehicle battery is designated as a battery to be repaired, and repair processing is performed on the battery using the vehicle's charging equipment. Because the repair time for mild sulfation is short in this solution, and the battery is repaired while the vehicle is running, this solution can reduce the impact on the normal operation of the vehicle during repair, thereby improving the user experience. Attached Figure Description

[0021] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with those of this application and, together with the description, serve to explain the principles of the embodiments of this application.

[0022] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the embodiments of this application in any way, but rather to illustrate the concepts of the embodiments of this application to those skilled in the art through reference to specific embodiments.

[0023] Figure 1 This is a diagram of an in-vehicle system architecture as an example;

[0024] Figure 2 This is a flowchart illustrating a method for repairing a vehicle battery according to Embodiment 1 of this application.

[0025] Figure 3 Here is a diagram of the in-vehicle system architecture in another example;

[0026] Figure 4 A schematic flowchart illustrating another method for repairing a vehicle battery provided in Embodiment 1 of this application;

[0027] Figure 5 A schematic flowchart illustrating another method for repairing a vehicle battery provided in Embodiment 1 of this application;

[0028] Figure 6This is a schematic diagram of the structure of the vehicle battery repair device provided in Embodiment 2 of this application;

[0029] Figure 7 This is a schematic diagram of the structure of the electronic device provided in Embodiment 3 of this application.

[0030] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0031] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0032] Figure 1 Here is a diagram of an in-vehicle system architecture as an example, such as Figure 1 As shown, the system includes a body controller 11, an on-board battery 12, a starting device 13, and low-voltage electrical appliances 14. The body controller 11 is connected to the on-board battery 12. The body controller 11 detects and monitors the current vehicle status and controls the on-board battery 12 based on the current status. The on-board battery 12 can be a low-voltage lead-acid battery. The on-board battery 12 is connected to the low-voltage electrical appliances 14 and the starting device 13. When the vehicle is starting, the on-board battery 12 supplies power to the starting device 13; when the vehicle is in a parked dormant state, the on-board battery 12 provides power to the low-voltage electrical appliances 14, thereby improving the stability of vehicle operation.

[0033] In actual use, if the vehicle battery is not charged in time or is undercharged for a long time, lead sulfate crystals will appear on the negative terminal of the battery. This phenomenon is called battery sulfation. Battery sulfation will reduce the capacity of the capacitor, thereby reducing the performance of the battery.

[0034] In related technologies, when the battery is deeply sulfated, meaning its capacity is low, it is taken to a specialized service station to repair the sulfated battery using a low-current constant-current charging method. However, during the repair process, the battery cannot be used normally in the vehicle, and the repair time is long, resulting in a poor user experience.

[0035] In response to the problems of related technologies, this application proposes the following technical concept: When the vehicle controller detects that the vehicle battery is in a state of mild sulfation, the vehicle battery is charged through the charging equipment on the vehicle to repair the mild sulfation. Since the repair time for mild sulfation is short and the battery can be repaired while the vehicle is running, the repair method of this solution can reduce the impact on the normal operation of the vehicle, thereby improving the user experience.

[0036] The technical solutions of this application will be described in detail below with reference to specific embodiments. These specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments. In the description of this application, unless otherwise expressly specified and limited, the terms should be broadly understood within the art. The embodiments of this application will now be described with reference to the accompanying drawings.

[0037] Example 1

[0038] Figure 2 This is a flowchart illustrating a method for repairing a vehicle battery according to Embodiment 1 of this application. Figure 2 As shown, the method provided in this embodiment includes:

[0039] S201: Obtain the operating data of the vehicle battery; the operating data includes the first interval duration from the last time the battery completed repair to the current time and the total discharge amount of the battery from the last time the battery completed repair to the current time;

[0040] S202: Based on the first interval duration and the total discharge amount, detect whether the vehicle battery has reached a slightly sulfated state;

[0041] S203: If a slight sulfation state is reached, the vehicle battery is regarded as a battery to be repaired, and a repair process is performed on the battery to be repaired based on the charging equipment on the vehicle.

[0042] The execution subject of this application embodiment can be a vehicle body controller, or a vehicle battery repair device integrated with a vehicle body controller, or other electronic devices. The following describes the solution of this embodiment by taking the vehicle body controller as an example.

[0043] The operational data acquired in S201 may include the first interval duration from the last repair completion time to the current time and the total discharge amount of the battery from the last repair completion time to the current time. The last repair completion refers to the previous successful completion of the predetermined repair, excluding repairs that were forcibly terminated midway through the repair process. The first interval duration is the natural duration between the last repair completion time and the current repair time. The total discharge amount is the cumulative total discharge amount between the last repair completion time and the current repair time.

[0044] For example, if the last repair was completed at 10:00 on May 10th, and the current time is 12:00 on May 20th of the same year, then the first interval is 10 days and 2 hours; the battery has been used 20 times, and the total cumulative discharge is 10000mA·h.

[0045] As an example, sensors can be installed in the vehicle battery. These sensors can detect data such as battery temperature, battery SOC, usage time, and total discharge, and output these data as electrical signals. The sensors are connected to the vehicle controller, which can then acquire the vehicle battery's operating data through the sensors.

[0046] In S202, based on the first interval duration and total power consumption obtained above, it is detected whether the current vehicle battery has reached a state of mild sulfation. The state of mild sulfation is a relatively light sulfation state that occurs in the early stage of battery depletion. At this time, because the sulfation state is relatively light, the repair process will be relatively easy and the repair time will be relatively short.

[0047] In one implementation, S202 may include:

[0048] If the first interval duration reaches the first preset duration, or the total discharge amount reaches the preset discharge amount, then the vehicle battery is determined to have reached a slightly sulfated state; otherwise, the vehicle battery is determined not to be in a slightly sulfated state.

[0049] This embodiment describes a method for detecting the status of a vehicle battery. The first preset duration can be set according to the battery characteristics and vehicle usage. For example, if the battery has a relatively high self-discharge rate and the vehicle is used frequently, a relatively short first preset duration can be set; conversely, a relatively long first preset duration can be set. The preset discharge rate is set based on the rated capacity of the vehicle battery; generally, the larger the rated capacity of the battery, the larger the preset discharge rate setting, and vice versa.

[0050] In practical applications, vehicle batteries self-discharge, and when stored at a state of charge below 60% (SOC), mild sulfation (sulfation) can occur. Therefore, even if the vehicle is not in operation, prolonged storage can lead to sulfation. Thus, a first interval duration is set as the criterion. Furthermore, if the total discharge exceeds a preset discharge amount within the first preset duration, abnormal discharge may occur, resulting in battery depletion and subsequent sulfation. Therefore, in this example, the comparison between the first interval duration and the first preset duration, as well as the comparison between the total discharge amount and the preset discharge amount, can determine whether the vehicle battery is in a state of mild sulfation.

[0051] For example, the first preset duration is set to 30 days, and the preset discharge amount is set to 5 times the rated capacity Q of the vehicle battery. When the first interval duration is detected to reach 30 days, or the total discharge amount is 5Q, it is determined that the current vehicle battery has reached a state of mild sulfation.

[0052] In this embodiment, the vehicle battery is determined to be in a slightly sulfated state by comparing the first interval duration and the total discharge amount with the corresponding preset amounts. This method takes into account scenarios such as long-term storage and abnormal discharge leading to battery sulfation. Therefore, this embodiment can accurately determine the state of the vehicle battery.

[0053] In S203, if the vehicle battery reaches a state of mild sulfation, the current vehicle battery is designated as the battery to be repaired, and repair is performed on the battery using a charging device. The charging device can be a generator, and the type of generator is not limited. For example, the generator can be used while the vehicle is running, generating electricity from the vehicle's engine to charge the battery to be repaired.

[0054] Figure 3 Here is a diagram of the in-vehicle system architecture in another example, such as Figure 3 As shown, the vehicle system includes a low-voltage power supply system 10, which includes a body controller 11, a charging device 15, and a vehicle battery 12. The body controller 11 is connected to sensors 16 in the charging device 15 and the vehicle battery 12. The body controller 11 receives operating data output by the sensors 16. Based on the first interval duration and total discharge amount in the operating data, the body controller 11 determines the current state of the vehicle. If the current state is mild sulfation, it sends a control signal to the charging device 15 to control the charging device 15 to enter the repair charging mode to repair the battery. Alternatively, the charging device 15 can be controlled to supply power to the vehicle battery 12 in normal charging mode.

[0055] In one example, Figure 4 This is a flowchart illustrating another method for repairing a vehicle battery provided in Embodiment 1 of this application, as shown below. Figure 4 As shown, S203 may include:

[0056] S2031: Obtain the current temperature of the battery to be repaired;

[0057] S2032: Based on the charging voltage corresponding to each temperature of the battery, obtain the charging voltage corresponding to the current temperature of the battery to be repaired, and use it as the repair charging voltage; wherein, the charging voltage is negatively correlated with the temperature of the battery;

[0058] S2033: Control the charging device to charge the battery to be repaired based on the repair charging voltage until the repair is completed or the device is forcibly deactivated; the repair charging voltage is greater than the normal charging voltage when the battery is normally charged.

[0059] In this example, experiments verified that different temperatures have a significant impact on battery repair, and that different temperatures correspond to different charging voltages that achieve good repair results. As an example, for a lead-acid battery with a rated voltage of 12.7V, the relationship between charging voltage and the temperature of the battery to be repaired, based on experimental testing, is shown in Table 1 below:

[0060] Table 1 shows the correspondence between charging voltage and temperature of the battery to be repaired in an example.

[0061] Temperature (°C) -40 10 25 40 55 70 Charging voltage (V) 15.2 15.2 15.2 15.2 15 14.5

[0062] For example, if the sensor detects the current temperature of the battery to be repaired as 55℃, and referring to Table 1, the 15V corresponding to 55℃ is used as the repair charging voltage. This is 14.2V higher than the normal charging voltage, which is the charging voltage used for the vehicle battery in non-repair mode. The body controller controls the alternator to enter repair mode, charging the battery to be repaired at the 15V repair charging voltage until the body controller detects that the repair is complete, exits the current repair mode, and controls the alternator to stop supplying power. However, some situations can also cause the battery to be repaired to forcibly exit repair mode during charging. For example, if the vehicle is parked and not in use, the engine is not running and cannot drive the alternator to generate electricity, thus failing to supply power to the battery to be repaired, leading to a forced exit from repair mode. Therefore, the battery to be repaired should be repaired while the vehicle is in use.

[0063] The repair principle in this example will be explained below: Taking a lead-acid battery as an example, the charging process of a lead-acid battery is the process of applying an external electromotive force to convert PbSO4 in the positive and negative plates of the battery into PbO2 or Pb. During this process, due to differences in electrolyte conductivity and the crystal integrity and surface electrochemical activity of PbSO4, the overpotential for PbSO4 to react into PbO2 or Pb will differ. To some extent, this can be understood as a difference in resistance caused by the electrochemical reaction. For lead-acid batteries that have already experienced a discharge, due to the lower electrolyte density and higher crystallinity of PbSO4 on the positive and negative plates, the overpotential during the reaction process will be much higher than that of a battery after normal discharge, which can be understood as an order-of-magnitude increase in resistance. Especially for the negative plate, under discharge conditions, its reaction characteristics easily lead to the formation of PbSO4 crystals with large grain size, high crystal integrity, and low electrochemical activity, i.e., sulfation. If a standard on-board voltage (14.2V) constant-voltage charging method is used, the electrode potential allocated to the negative electrode increases, while the electrode potential of the positive electrode decreases, leading to a reduction in current and severely limiting the effective progress of the reaction. In this situation, increasing the charging voltage can solve the problem of poor reaction efficiency caused by the increased potential demand of the positive and negative electrodes under low voltage conditions. This allows the PbSO4, which would otherwise not undergo electrochemical reaction due to the increased reaction potential at the positive and negative electrodes, to be converted to the active materials PbO2 or Pb to the maximum extent. Therefore, in this example, a charging voltage higher than that used during normal charging is employed to repair a mildly sulfated battery.

[0064] In this example, the charging voltage to be repaired is determined based on the temperature of the battery to be repaired, and the repair charging voltage is higher than the normal charging voltage. The battery to be repaired is charged with the repair charging voltage, thus achieving the repair of the battery to be repaired. At the same time, the influence of temperature is also taken into account, thereby improving the battery repair effect.

[0065] In some examples, S2033 may also be followed by:

[0066] Check if the previous repair was completed;

[0067] If the previous repair was completed, check whether the repair time of this repair has reached the second preset time; if it has, then the repair is considered complete.

[0068] If the previous repair was not completed, the cumulative repair time between the last completed repair and the current repair is obtained. If the sum of the cumulative repair time and the repair time of the current repair reaches a third preset time, the current repair is determined to be completed.

[0069] This example introduces a method for determining whether a repair is complete. There are two scenarios for determining the completion of the current repair: First, if the previous repair was completed (i.e., there was no forced exit), the repair is considered complete if the current repair duration reaches a second preset duration. This second preset duration can be set in conjunction with the time used to repair a mildly sulfated vehicle battery. Second, if the previous repair was incomplete (i.e., a forced exit occurred), such as in short-distance scenarios where the vehicle stops operating before the previous repair duration reaches the second preset duration, the battery to be repaired will be forcibly exited repair mode. In this scenario, the cumulative repair duration between the last completed repair and the current repair is obtained. This includes the possibility of multiple repairs occurring between the last completed repair and the current repair, each of which resulted in a forced exit, preventing completion. The cumulative repair duration is the sum of these repair durations. If the sum of the cumulative repair duration and the current repair duration reaches a third preset duration, the current repair is considered complete. It's understandable that the first type is more applicable to long-distance operation scenarios, while the second type is more applicable to short-distance operation scenarios.

[0070] The following example illustrates this scenario: The second scheduled duration is 3 hours, and the third scheduled duration is twice the second scheduled duration, 6 hours. This is the 20th repair. First, it checks if the 19th repair was completed. If it was, it checks if the repair duration of this repair exceeds 3 hours. If it does, the repair is considered complete; otherwise, it is not. If the 19th repair was not completed, and the last completed repair was detected as the 15th repair (meaning there were 4 repairs between the 15th and this repair, but none of them were completed), the cumulative repair duration of these 4 repairs is calculated. If the cumulative repair duration exceeds 6 hours, the repair is considered complete; otherwise, it is not.

[0071] In some scenarios, such as long-term storage in a vehicle (over 5 years), the battery to be repaired may be in a state of deep sulfation, making high-voltage charging-based repair methods ineffective. Therefore, in another example, after controlling the charging device to charge the battery to be repaired based on the repair charging voltage, the process may further include:

[0072] Obtain the charging current of the battery to be repaired under a fourth preset duration; the fourth preset duration is not greater than the second preset duration;

[0073] If the charging current of the battery to be repaired is less than the preset current, an alarm mechanism is triggered to inform the user that the battery to be repaired is in a state of deep sulfation.

[0074] The following is an example using a specific scenario: The fourth preset duration is equal to the second preset duration of 3 hours, and the preset current is 3A. The charger continuously charges the battery to be repaired at a repair voltage of 15.2V. When the repair duration reaches 3 hours, the current charging current is 2A. Under normal circumstances, the charging current gradually increases with the repair duration until it stabilizes. The stable charging current can reach 8-15A. If the current current is less than 3A, it indicates that the battery to be repaired can no longer be charged and is in a state of deep sulfation; a charging voltage of 15.2V cannot achieve repair. In this state, an alarm mechanism is triggered to inform the user, allowing the user to promptly address the deep sulfation of the vehicle battery using methods such as a low-current charging indicator.

[0075] This example uses the charging current of the battery to be repaired under the fourth preset time period to determine whether the battery to be repaired is in a deep sulfation state, and triggers an alarm mechanism when it is in a deep sulfation state. This allows users to deal with the deep sulfation of the battery to be repaired in a timely manner, thereby improving the safety of vehicle operation.

[0076] In other examples, S203 may also include:

[0077] The system detects whether the temperature of the battery to be repaired exceeds a preset temperature and whether the low-voltage power supply system is abnormal; the low-voltage power supply system includes the vehicle battery, the body controller, and the charging equipment.

[0078] If the temperature of the battery to be repaired does not exceed the preset temperature and the power supply system is not abnormal, then the battery to be repaired is repaired based on the on-board charging equipment; otherwise, no repair is performed.

[0079] In this example, the temperature of the low-voltage power supply system and the battery to be repaired is checked before repairing the battery. If the temperature of the battery to be repaired exceeds the preset temperature, or if the low-voltage power supply system is abnormal, it indicates a possible vehicle malfunction. If repair continues under these circumstances, it may lead to further deterioration of the vehicle malfunction, or even vehicle failure. Therefore, this example improves the reliability of the repair and the safety of vehicle operation.

[0080] The following will provide an exemplary description of this embodiment with reference to various examples: Figure 5 This is a flowchart illustrating another method for repairing a vehicle battery provided in Embodiment 1 of this application, as shown below. Figure 5 As shown, in this example, the first preset duration is 30 days, the preset discharge amount is 5 times the battery capacity, the second preset duration is 3 hours, the third preset duration is 6 hours, the fourth preset duration is 2.5 hours, and the preset current is 3A. The execution flow is as follows:

[0081] Based on the sensors of the vehicle battery, the system acquires the battery's operating data. It checks whether the first interval since the last repair has reached 30 days, and whether the cumulative total discharge since the last repair has reached 5 times the battery capacity. If neither is met, the repair process is not executed. Otherwise, it checks whether the current temperature of the battery to be repaired exceeds a preset temperature. If it does, the repair process is not executed. If it does not exceed the preset temperature, it checks whether the low-voltage power supply system is abnormal. If abnormal, the repair process is not executed. If normal, it acquires the charging voltage corresponding to the current temperature of the battery to be repaired as the repair charging voltage. Based on this voltage, the battery is charged to perform the repair process. Then, it checks whether the previous repair was completed. If completed, it checks whether the current repair duration has reached 3 hours. If it has reached 3 hours, the repair is considered complete, and the repair process ends and charging stops. If it has not reached 3 hours, the repair continues. If the previous repair was incomplete, the cumulative repair time between the previous completed repair and the current repair is obtained, and it is checked whether the sum of the cumulative repair time and the current repair time reaches 6 hours. If it does, the current repair is considered complete, and the repair process ends and charging stops. If it does not reach 6 hours, the repair continues. In addition, based on the repair charging voltage, after charging the battery to be repaired, the charging current of the battery to be repaired at a repair time of 2.5 hours needs to be obtained, and it is checked whether the charging current is greater than 3A. If it is greater than 3A, the repair continues; if it is not greater than 3A, an alarm mechanism is triggered, and the repair process ends.

[0082] In the vehicle battery repair method provided in this embodiment, the operating data of the vehicle battery is acquired, and based on the first interval duration and total discharge amount in the operating data, it is detected whether the vehicle battery has reached a state of slight sulfation. If it has reached a state of slight sulfation, the vehicle battery is designated as a battery to be repaired, and repair processing is performed on the battery to be repaired using the charging equipment on the vehicle. Because the repair time for slight sulfation is short in this solution, and the battery can be repaired while the vehicle is running, the repair method of this solution can reduce the impact on the normal operation of the vehicle, thereby improving the user experience.

[0083] Example 2

[0084] Figure 6 This is a schematic diagram of the structure of the vehicle battery repair device provided in Embodiment 2 of this application, as shown below. Figure 6 As shown, the apparatus provided in this embodiment includes:

[0085] The acquisition module is used to acquire the operating data of the vehicle battery; the operating data includes the first interval duration from the last time the battery completed repair to the current time and the total discharge amount of the battery from the last time the battery completed repair to the current time.

[0086] The detection module is used to detect whether the vehicle battery has reached a slightly sulfated state based on the first interval duration and the total discharge amount.

[0087] The repair module is used to identify the vehicle battery as a battery to be repaired if it reaches a state of mild sulfation, and to perform repair processing on the battery to be repaired based on the charging equipment on the vehicle.

[0088] The operational data acquired by the acquisition module may include the first interval duration from the last repair completion time to the current time, and the total discharge amount of the battery from the last repair completion time to the current time. "Last repair completed" refers to the previous successful completion of the predetermined repair, excluding repairs that were forcibly terminated midway through the repair process. The first interval duration is the natural duration between the last repair completion time and the current repair time. The total discharge amount is the cumulative total discharge amount between the last repair completion time and the current repair time.

[0089] In one implementation, the detection module is specifically used to determine that the vehicle battery has reached a slightly sulfated state if the first interval duration reaches a first preset duration, or the preset discharge amount reaches a preset discharge amount; the preset discharge amount is set according to the battery capacity; otherwise, it is determined that the vehicle battery is not in a slightly sulfated state.

[0090] The first preset duration can be set according to the battery characteristics and vehicle usage. For example, if the battery has a relatively large self-discharge and the vehicle is used frequently, a relatively short first preset duration can be set; conversely, a relatively long first preset duration can be set. The preset discharge capacity is set based on the rated capacity of the vehicle battery. Generally, the larger the rated capacity of the battery, the larger the preset discharge capacity setting, and vice versa.

[0091] In this embodiment, the detection module compares the first interval duration and the total discharge amount with the corresponding preset amounts, and determines whether the vehicle battery is in a slightly sulfated state based on the comparison results. It takes into account the scenarios of long-term storage and abnormal discharge leading to battery sulfation. Therefore, this embodiment can accurately determine the state of the vehicle battery.

[0092] If the vehicle battery reaches a state of mild sulfation, it will be used as the battery to be repaired, and repair will be carried out using charging equipment. The charging equipment can be a generator, and the type of generator is not limited. For example, the generator can be used while the vehicle is running, generating electricity from the vehicle's engine to charge the battery to be repaired.

[0093] In one example, the repair module is specifically used to obtain the current temperature of the battery to be repaired;

[0094] The repair module is further configured to obtain the charging voltage corresponding to the current temperature of the battery to be repaired based on the charging voltage corresponding to each temperature of the battery, and use it as the repair charging voltage; wherein the charging voltage is negatively correlated with the temperature of the battery.

[0095] The repair module is further configured to control the charging device to charge the battery to be repaired based on the repair charging voltage until the repair is completed or the battery is forcibly exited; the repair charging voltage is greater than the normal charging voltage when the battery is normally charged.

[0096] In this example, the charging voltage to be repaired is determined based on the temperature of the battery to be repaired, and the repair charging voltage is higher than the normal charging voltage. The battery to be repaired is charged with the repair charging voltage, thus achieving the repair of the battery to be repaired. At the same time, the influence of temperature is also taken into account, thereby improving the battery repair effect.

[0097] In some examples, the repair module is further configured to, after controlling the charging device to charge the battery to be repaired based on the repair charging voltage,

[0098] Check if the previous repair was completed;

[0099] If the previous repair was completed, check whether the repair time of this repair has reached the second preset time; if it has, then the repair is considered complete.

[0100] If the previous repair was not completed, the cumulative repair time between the last completed repair and the current repair is obtained. If the sum of the cumulative repair time and the repair time of the current repair reaches a third preset time, the current repair is determined to be completed.

[0101] In this example, there are two scenarios for determining whether the current repair is complete. The first scenario is that the previous repair was completed, meaning there was no forced exit. In this scenario, if the repair time of the current repair reaches the second preset time, the repair is considered complete. The second preset time can be set in conjunction with the time used to repair a mildly sulfated vehicle battery. The second scenario is that the previous repair was not completed, meaning there was a forced exit. For example, in some short-distance scenarios, if the vehicle stops operating before the previous repair time reaches the second repair time, the battery to be repaired will be forcibly exited from repair mode. In this scenario, the cumulative repair time between the last completed repair and the current repair is obtained. Many repairs may have been performed between the last completed repair and the current repair, but each repair was forcibly exited, resulting in these repairs not being completed. The cumulative repair time is the sum of the repair times of these repairs. If the sum of the cumulative repair time and the repair time of the current repair reaches the third preset time, the repair is considered complete. It can be understood that the first scenario is more applicable to long-distance operation scenarios, while the second is more applicable to short-distance operation scenarios.

[0102] In some scenarios, such as long-term storage in a vehicle (over 5 years), the battery to be repaired may be in a state of deep sulfation, making high-voltage charging-based repair methods ineffective. Therefore, in another example, the detection module is further configured to control the charging device to charge the battery to be repaired based on the repair charging voltage.

[0103] Obtain the charging current of the battery to be repaired under the second preset duration;

[0104] If the charging current of the battery to be repaired is less than the preset current, an alarm mechanism is triggered to inform the user that the battery to be repaired is in a state of deep sulfation.

[0105] This example uses the charging current of the battery to be repaired under the fourth preset time period to determine whether the battery to be repaired is in a deep sulfation state, and triggers an alarm mechanism when it is in a deep sulfation state. This allows users to deal with the deep sulfation of the battery to be repaired in a timely manner, thereby improving the safety of vehicle operation.

[0106] In other examples, the repair module is specifically used to detect whether the temperature of the battery to be repaired exceeds a preset temperature, and whether the low-voltage power supply system is abnormal; the low-voltage power supply system includes the vehicle battery, the body controller, and the charging equipment;

[0107] The repair module is further configured to perform repair processing on the battery to be repaired based on the on-board charging equipment if the temperature of the battery to be repaired does not exceed the preset temperature and the power supply system is not abnormal; otherwise, no processing is performed.

[0108] In this example, the temperature of the low-voltage power supply system and the battery to be repaired is checked before repairing the battery. If the temperature of the battery to be repaired exceeds the preset temperature, or if the low-voltage power supply system is abnormal, it indicates a possible vehicle malfunction. If repair continues under these circumstances, it may lead to further deterioration of the vehicle malfunction, or even vehicle failure. Therefore, this example improves the reliability of the repair and the safety of vehicle operation.

[0109] In the vehicle battery repair device provided in this embodiment, the acquisition module acquires the operating data of the vehicle battery, and the detection module detects whether the vehicle battery has reached a slightly sulfated state based on the first interval duration and total discharge amount in the operating data. If the repair module finds that the battery has reached a slightly sulfated state, it treats the vehicle battery as a battery to be repaired and performs repair processing on the battery based on the charging equipment on the vehicle. Because the repair time for slightly sulfated batteries is short and the battery can be repaired while the vehicle is running, this repair method can reduce the impact on the normal operation of the vehicle, thereby improving the user experience.

[0110] Example 3

[0111] Figure 7 This is a schematic diagram of the structure of the electronic device provided in Embodiment 3 of this application, as shown below. Figure 7 As shown, the electronic device includes:

[0112] The electronic device includes a processor 291 and a memory 292; it may also include a communication interface 293 and a bus 294. The processor 291, memory 292, and communication interface 293 can communicate with each other via the bus 294. The communication interface 293 can be used for information transmission. The processor 291 can invoke logical instructions stored in the memory 292 to execute the methods of the above embodiments.

[0113] Furthermore, the logic instructions in the aforementioned memory 292 can be implemented as software functional units and, when sold or used as independent products, can be stored in a computer-readable storage medium.

[0114] The memory 292, as a computer-readable storage medium, can be used to store software programs and computer-executable programs, such as program instructions / modules corresponding to the methods in the embodiments of this application. The processor 291 executes functional applications and data processing by running the software programs, instructions, and modules stored in the memory 292, thereby implementing the methods in the above-described method embodiments.

[0115] The memory 292 may include a program storage area and a data storage area. The program storage area may store the operating system and application programs required for at least one function; the data storage area may store data created based on the use of the terminal device. Furthermore, the memory 292 may include high-speed random access memory and may also include non-volatile memory.

[0116] This application also provides a computer-readable storage medium storing computer-executable instructions, which, when executed by a processor, are used to implement the methods described in any of the embodiments.

[0117] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this application are indicated by the claims.

[0118] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this application is limited only by the appended claims.

Claims

1. A method for repairing a vehicle battery, characterized in that, include: Acquire the operating data of the vehicle battery; the operating data includes the first interval duration from the last time the battery completed repair to the current time and the total discharge amount of the battery from the last time the battery completed repair to the current time; Based on the first interval duration and the total discharge amount, it is determined whether the vehicle battery has reached a state of mild sulfation. If a slight sulfation state is reached, the vehicle battery is regarded as a battery to be repaired, and the battery to be repaired is repaired based on the charging equipment on the vehicle. The step of detecting whether the vehicle battery has reached a slightly sulfated state based on the first interval duration and the total discharge amount includes: If the first interval duration reaches the first preset duration, or the total discharge amount reaches the preset discharge amount, then the vehicle battery is determined to have reached a slightly sulfated state; the preset discharge amount is set based on the battery capacity. Otherwise, the vehicle battery is determined not to be in a slightly sulfated state.

2. The repair method according to claim 1, characterized in that, The repair process performed on the battery to be repaired based on the on-board charging equipment includes: Obtain the current temperature of the battery to be repaired; Based on the charging voltage corresponding to each temperature of the battery, the charging voltage corresponding to the current temperature of the battery to be repaired is obtained and used as the repair charging voltage; wherein, the charging voltage is negatively correlated with the temperature of the battery; The charging device is controlled to charge the battery to be repaired based on the repair charging voltage until the repair is completed or the battery is forcibly deactivated; the repair charging voltage is greater than the normal charging voltage of the battery when it is being charged normally.

3. The repair method according to claim 2, characterized in that, After controlling the charging device to charge the battery to be repaired based on the repair charging voltage, the method further includes: Check if the previous repair was completed; If the previous repair was completed, check whether the repair time of this repair has reached the second preset time; if it has, then the repair is considered complete. If the previous repair was not completed, the cumulative repair time between the last completed repair and the current repair is obtained. If the sum of the cumulative repair time and the repair time of the current repair reaches a third preset time, the current repair is determined to be completed.

4. The repair method according to claim 3, characterized in that, After controlling the charging device to charge the battery to be repaired based on the repair charging voltage, the method further includes: Obtain the charging current of the battery to be repaired under a fourth preset duration; the fourth preset duration is not greater than the second preset duration; If the charging current of the battery to be repaired is less than the preset current, an alarm mechanism is triggered to inform the user that the battery to be repaired is in a state of deep sulfation.

5. The repair method according to any one of claims 1-4, characterized in that, The repair process performed on the battery to be repaired based on the on-board charging equipment includes: The system detects whether the temperature of the battery to be repaired exceeds a preset temperature and whether the low-voltage power supply system is abnormal; the low-voltage power supply system includes the vehicle battery, the body controller, and the charging equipment. If the temperature of the battery to be repaired does not exceed the preset temperature and the power supply system is not abnormal, then the battery to be repaired is repaired based on the on-board charging equipment; otherwise, no repair is performed.

6. A vehicle battery repair device, characterized in that, include: The acquisition module is used to acquire the operating data of the vehicle battery; the operating data includes the first interval duration from the last time the battery completed repair to the current time and the total discharge amount of the battery from the last time the battery completed repair to the current time. The detection module is used to detect whether the vehicle battery has reached a slightly sulfated state based on the first interval duration and the total discharge amount. The repair module is used to identify the vehicle battery as a battery to be repaired if it reaches a state of mild sulfation, and to perform repair processing on the battery to be repaired based on the charging equipment on the vehicle. The detection module is specifically used to determine that the vehicle battery has reached a slightly sulfated state if the first interval duration reaches a first preset duration or the total discharge amount reaches a preset discharge amount. The preset discharge amount is set based on the battery capacity; Otherwise, the vehicle battery is determined not to be in a slightly sulfated state.

7. The repair device according to claim 6, characterized in that, The repair module is specifically used to obtain the current temperature of the battery to be repaired; The repair module is further configured to obtain the charging voltage corresponding to the current temperature of the battery to be repaired based on the charging voltage corresponding to each temperature of the battery, and use it as the repair charging voltage; wherein the charging voltage is negatively correlated with the temperature of the battery. The repair module is further configured to control the charging device to charge the battery to be repaired based on the repair charging voltage until the repair is completed or the battery is forcibly exited; the repair charging voltage is greater than the normal charging voltage when the battery is normally charged.

8. The repair device according to claim 7, characterized in that, The repair module is further configured to control the charging device to charge the battery to be repaired based on the repair charging voltage after... Check if the previous repair was completed; If the previous repair was completed, check whether the repair time of this repair has reached the second preset time; if it has, then the repair is considered complete. If the previous repair was not completed, the cumulative repair time between the last completed repair and the current repair is obtained. If the sum of the cumulative repair time and the repair time of the current repair reaches a third preset time, the current repair is determined to be completed.

9. The repair device according to claim 8, characterized in that, The detection module is further configured to control the charging device to charge the battery to be repaired based on the repair charging voltage after... Obtain the charging current of the battery to be repaired under the second preset duration; If the charging current of the battery to be repaired is less than the preset current, an alarm mechanism is triggered to inform the user that the battery to be repaired is in a state of deep sulfation.

10. The repair apparatus according to any one of claims 6-9, characterized in that, The repair module is specifically used to detect whether the temperature of the battery to be repaired exceeds a preset temperature, and whether the low-voltage power supply system is abnormal; the low-voltage power supply system includes the vehicle battery, the body controller, and the charging equipment; The repair module is further configured to perform repair processing on the battery to be repaired based on the on-board charging equipment if the temperature of the battery to be repaired does not exceed the preset temperature and the power supply system is not abnormal. Otherwise, no action will be taken.

11. An electronic device, characterized in that, include: A processor, and a memory communicatively connected to the processor; The memory stores computer-executed instructions; The processor executes computer execution instructions stored in the memory to implement the method as described in any one of claims 1-5.

12. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer-executable instructions, which, when executed by a processor, are used to implement the method as described in any one of claims 1-5.

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