Battery charging method, battery, vehicle and storage medium

Abstract

The invention relates to the technical field of batteries, and provides a battery charging method, a battery, a vehicle and a computer readable storage medium. According to the battery charging method, the preset event used for triggering the charging request is monitored, the charging request can be sent to the target module corresponding to the preset event in the vehicle when the preset event occurs, and then the target module is indicated to charge the battery. Meanwhile, when the target module charges the battery and meets the preset condition, the target module is indicated to stop charging the battery by sending the preset instruction to the target module, so that the target module in the vehicle is indicated to charge the battery in time, and the charging operation can be stopped in a planned manner; therefore, the power shortage of the target module due to long-time battery charging is avoided, and a battery charging scheme which can improve the user experience and is higher in intelligent degree is provided.

Description

Technical Field

[0001] This application belongs to the technical field of batteries, and particularly relates to a method for battery charging, a battery, a vehicle, and a computer-readable storage medium. Background Art

[0002] New energy vehicles have characteristics such as being affordable and having a high degree of intelligence, and are favored by users. Currently, most new energy vehicles are equipped with a battery that provides a low-voltage power supply. During vehicle driving, the battery can be charged by the vehicle's power battery. After the vehicle parks and enters the sleep state, the battery still needs to supply power to some functional modules in the vehicle, such as chips, electronic devices, sensors, dash cams, etc.

[0003] However, when the vehicle parks and enters the sleep state for a long time, the battery cannot be charged by the power battery, which makes the battery prone to power loss due to long-term power consumption and cannot respond in time when starting the vehicle next time, affecting the user experience. Summary of the Invention

[0004] The purpose of this application is to provide a method for battery charging, a battery, a vehicle, and a computer-readable storage medium, aiming to provide a battery charging solution that can improve the user experience and has a higher degree of intelligence.

[0005] In a first aspect of an embodiment of this application, a method for battery charging is provided, which is applied to a battery configured in a vehicle to provide a low-voltage power supply. The method includes:

[0006] Monitoring a preset event for triggering a charging request, where the preset event includes at least a first preset event when the vehicle is in a non-sleep state and a second preset event when the vehicle is in a sleep state;

[0007] In response to the preset event, sending a charging request to a target module in the vehicle corresponding to the preset event, where the charging request is used to instruct the target module to charge the battery;

[0008] When the charging of the battery by the target module meets a preset condition, sending a preset instruction to the target module, where the preset instruction is used to instruct the target module to stop charging the battery.

[0009] A method for battery charging provided by an embodiment of the present application can, by monitoring a preset event for triggering a charging request, send a charging request to a target module corresponding to the preset event in the vehicle when the preset event occurs, and then instruct the target module to charge the battery. Since the preset event includes a first preset event when the vehicle is in a non-sleep state and a second preset event when the vehicle is in a sleep state, regardless of whether the vehicle is in a non-sleep state or a sleep state, a charging request can be sent to the corresponding target module in the vehicle by monitoring the preset event, and then the target module is instructed to charge the battery. At the same time, when the charging of the battery by the target module meets a preset condition, by sending a preset instruction to the target module, the target module is instructed to stop charging the battery, achieving the ability to timely instruct the target module in the vehicle to charge the battery while also being able to plan to stop the charging operation, thereby avoiding the target module from discharging due to long-term battery charging, and thus providing a battery charging solution that can improve the user experience and has a higher degree of intelligence.

[0010] A second aspect of an embodiment of the present application provides a method for battery charging, which is applied to a vehicle. The vehicle is configured with a battery, and the battery is used to provide a low-voltage power supply. The method includes:

[0011] Receiving, by a target module, a charging request sent by the battery; wherein, the charging request is triggered by the battery when a preset event is monitored, and the preset event includes at least a first preset event when the vehicle is in a non-sleep state and a second preset event when the vehicle is in a sleep state; the target module corresponds to the preset event;

[0012] Responding to the charging request by the target module to charge the battery; wherein, the target module is configured to stop charging the battery in response to a preset instruction sent by the battery when the charging of the battery meets a preset condition.

[0013] A third aspect of an embodiment of the present application provides a battery, a memory, a processor, and a computer program stored in the memory and executable on an energy storage converter. When the processor executes the computer program, the steps of the battery charging method provided in the first aspect above are implemented.

[0014] A fourth aspect of an embodiment of the present application provides a vehicle, a memory, a processor, and a computer program stored in the memory and executable on the vehicle. When the processor executes the computer program, the steps of the battery charging method provided in the first aspect above are implemented; or the steps of the battery charging method provided in the second aspect above are implemented.

[0015] The fifth aspect of the embodiments of the present application provides a computer-readable storage medium storing a computer program, which when executed by a processor, implements the steps of the battery charging method provided in the first aspect above; or implements the steps of the battery charging method provided in the second aspect above.

[0016] It can be understood that the beneficial effects of the second to fifth aspects above can be referred to the relevant descriptions in the first or second aspect above, and will not be elaborated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 FIG. 9 is a schematic diagram of a usage environment of a battery charging method provided by an embodiment of the present application;

[0018] Figure 2 FIG. 13 is a flowchart of implementing a battery charging method provided by an embodiment of the present application;

[0019] Figure 3 FIG. 17 is a flowchart of implementing a battery charging method provided by another embodiment of the present application;

[0020] Figure 4 FIG. 21 is a structural block diagram of a battery provided by an embodiment of the present application;

[0021] Figure 5 FIG. 25 is a structural block diagram of a vehicle provided by an embodiment of the present application. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clear, the present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application, and are not used to limit the present application.

[0023] It should be noted that the terms "first" and "second" are only used for descriptive purposes, and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, "a plurality" means two or more unless otherwise specifically defined.

[0024] Exemplarily, most current new energy vehicles are equipped with a battery that provides a low-voltage power supply. During vehicle driving, the battery of the vehicle can be used to charge this battery. After the vehicle parks and goes into sleep mode, this battery still needs to supply power to some functional modules in the vehicle, such as chips, electronic devices, sensors, dash cams, etc. in the vehicle.

[0025] However, when the vehicle is parked and in a dormant state for a long time, the battery cannot be charged by the power battery, which makes the battery prone to power shortage due to long-term power consumption and unable to respond in time when the vehicle is started next time, affecting the user experience.

[0026] To solve the above technical problems, this embodiment provides a method for battery charging, which can not only improve the user experience, but also has a higher degree of intelligence. To facilitate the understanding of the battery charging method provided in this embodiment, reference can be made to Figure 1 a schematic diagram of the usage environment of a battery charging method shown in Figure 1 which shows the connection relationship between the battery and the vehicle. To facilitate the understanding of the solution, in Figure 1 the usage environment of the battery charging method can be divided into the battery side and the vehicle side according to the working principles or control entities of the battery, the low-voltage power load, and the vehicle-side battery respectively.

[0027] It can be understood that Figure 1 the battery side and the vehicle side shown are only for facilitating the understanding of the solution. In actual implementation, the battery and the vehicle are not isolated or separated. In addition, the battery is configured in the vehicle and provides electrical energy for the low-voltage electrical loads in the vehicle, that is, the low-voltage power supply. Based on this, Figure 1 the voltage side and the vehicle side shown do not constitute an implementation limitation of the battery charging method provided in this embodiment.

[0028] In Figure 1 the battery side includes a battery management system, and the battery management system of this battery can also be called the low-voltage side battery management system, which is used to control the charging and discharging operations of the battery cells. In all embodiments of this application, if not otherwise specified, the battery management system of the battery and the low-voltage side battery management system both refer to the battery management system in the battery. Similarly, a battery management system (not shown in the figure) can also be configured in the vehicle-side battery, and the battery management system in the power battery is a completely different two battery management systems from the battery management system.

[0029] Exemplarily, during vehicle driving, the battery management system / low-voltage side battery management system of the battery can utilize the electrical energy of the battery cells on the battery side to supply power to the unit modules in the battery management system / low-voltage side battery management system through the power supply unit. At the same time, it can also supply power to the low-voltage electrical loads on both sides of the vehicle, such as chips, sensors, etc. in the vehicle. During this process, the vehicle-side battery can output direct current through the DC / DC unit, and the battery management system / low-voltage side battery management system can utilize this direct current to charge the battery cells in a timely manner, thereby keeping the battery side fully charged. When the vehicle is parked and in a dormant state, since the vehicle-side battery does not output direct current through the DC / DC unit, at this time, because the battery management system / low-voltage side battery management system on the battery side utilizes the electrical energy of the battery cells on the battery side to supply power to its own unit modules and the low-voltage electrical loads on both sides of the vehicle, the electrical energy of the battery cells on the battery side gradually decreases. If the vehicle is parked and dormant for a long time, it may cause the battery side to run out of power, or even experience a dead battery phenomenon. To avoid the battery running out of power, the battery charging method provided in this embodiment can be performed by Figure 1 the battery management system / low-voltage side battery management system on the battery side in. The battery management system / low-voltage side battery management system can send a charging request to the target module corresponding to the preset event in the vehicle when the preset event for triggering the charging request is monitored, thereby instructing the target module to charge the battery. Since the preset events include the first preset event when the vehicle is in a non-dormant state and the second preset event when the vehicle is in a dormant state, therefore, whether the vehicle is in a non-dormant state or a dormant state, a charging request can be sent to the corresponding target module in the vehicle by monitoring the preset event, thereby instructing the target module to charge the battery. At the same time, when the charging of the battery by the target module meets the preset conditions, by sending a preset instruction to the target module, it is instructed to stop charging the battery, realizing that while timely instructing the target module in the vehicle to charge the battery, it is also possible to stop this charging operation in a planned manner, thereby avoiding the target module from running out of power due to charging the battery for a long time, thus providing a battery charging solution that can improve the user experience and has a higher degree of intelligence.

[0030] The following only takes the battery management system in the battery as the execution subject as an example, and details a battery charging method provided in this embodiment through specific implementation manners. It can be understood that in all embodiments of the application, the battery specifically refers to Figure 1 the battery side in, that is, the battery at least includes multiple battery cells, and a battery management system / low-voltage side battery management system. The vehicle-side battery can be the power battery of the vehicle, or a battery pack, energy storage device, etc. additionally configured on the vehicle, which is not limited here. Figure 2 shows the implementation flowchart of a battery charging method provided in an embodiment of the present application. As Figure 2As shown, the method for battery charging replenishment includes the following steps:

[0031] 110: Monitor a preset event for triggering a charging replenishment request.

[0032] In 110, the preset event includes at least a first preset event when the vehicle is in a non-sleep state and a second preset event when the vehicle is in a sleep state.

[0033] In this embodiment, the charging replenishment request generally refers to a request for using electric energy to charge the battery, that is, the charging replenishment request can also be understood as a charging request.

[0034] In specific implementation, a corresponding monitoring strategy can be configured in the battery management system of the battery to monitor the preset event. For example, corresponding monitoring function scripts are configured according to all the first preset events and the second preset events. By configuring the monitoring function scripts in the battery management system and making the MCU in the battery management system execute the scripts, the monitoring of the preset event can be realized.

[0035] As an embodiment, the first preset event includes: the remaining power of the battery is lower than a preset SOC threshold and / or the voltage of the battery is lower than a preset voltage threshold.

[0036] Exemplarily, in combination with Figure 1 the example shown, an analog front-end unit is provided in the battery management system on the battery side. In actual use, the analog front-end unit can detect the battery cells, such as performing current detection, voltage detection, and temperature detection on the battery cells, and then can send the detected data to the MCU. Based on this, the MCU can calculate the remaining power and / or voltage of the battery according to the data detected by the analog front-end unit. In this way, when the remaining power of the battery is lower than the preset SOC threshold and / or the voltage of the battery is lower than the preset voltage threshold, the charging replenishment request can be triggered.

[0037] For example, when the vehicle is in the OFF gear, the vehicle controller does not issue a power-off command or the vehicle network is in a normal state, and the battery on the vehicle side is in normal operation (non-sleep state). When the battery management system on the battery side recognizes that the SOC or voltage drops to a certain threshold, it actively sends a charging replenishment request to the battery on the vehicle side or the vehicle controller on the vehicle side.

[0038] As an embodiment, the second preset event includes at least one of: the battery triggers a timed wake-up instruction, the remaining power of the battery is lower than a preset SOC threshold, and the voltage of the battery is lower than a preset voltage threshold.

[0039] Exemplarily, in combination with Figure 1In the example shown, a timer is set in the battery management system on the battery side. When the vehicle is parked and in a sleep state, the corresponding wake-up time or wake-up cycle can be set through the timer, and then the timer can trigger the wake-up instruction at regular intervals / periodically.

[0040] For example, when the vehicle is in a parked and sleep state, when the timer records the arrival of the timing time or the trigger period, the timer triggers a wake-up instruction to the MCU, and then wakes up the MCU to send a charging request to the vehicle-side battery or the vehicle controller on the vehicle side.

[0041] For another example, in combination with Figure 1 In the example shown, when the vehicle is in the OFF gear, after the vehicle controller issues a power-down instruction or the vehicle network is in the "Bus-Sleep Mode", the battery management system of the vehicle-side battery enters the sleep state. At this time, the timing of the timer has not arrived, but the vehicle consumes power abnormally during sleep. For example, wild cats frequently trigger the vehicle's sentry mode, causing the battery side to continuously consume electrical energy, resulting in an excessively low actual battery power. At this time, the analog front-end unit in the battery management system can trigger the sleep fault detection function, and then wake up the power supply unit to supply power to the MCU, so that the MCU can trigger a charging request to the vehicle-side battery or the vehicle controller on the vehicle side.

[0042] 120: In response to a preset event, send a charging request to a target module in the vehicle corresponding to the preset event, where the charging request is used to instruct the target module to charge the battery.

[0043] In 120, the target module generally refers to a module in the vehicle that can charge the battery. For example, the vehicle-side battery, specifically, it can be the battery management system of the vehicle-side battery. For another example, the vehicle controller controls the vehicle-side battery to charge the battery.

[0044] In this embodiment, since different preset events correspond to the non-sleep state and the sleep state of the vehicle, in order to be able to charge the battery in a timely and efficient manner, by setting the correspondence between the preset event and the target module, it is possible to ensure timely charging of the battery while waking up as few modules in the vehicle as possible and shortening the response time of the charging request.

[0045] Exemplarily, in combination with Figure 1Regarding the relationship between the battery and the vehicle shown, in specific implementation, when the preset event is the first preset event, the target module corresponding to the first preset event can be the module with the highest control authority in the vehicle, such as the vehicle controller, in-vehicle terminal, etc. When the preset event is the second preset event, the target module corresponding to the second preset event can be the vehicle-side battery in the vehicle, such as the power battery in the vehicle, an additional battery pack configured in the vehicle, an energy storage device, etc. It is easy to understand that when charging the battery with the target module, whether the target module is the vehicle controller or the battery management system of the vehicle-side battery, the electrical energy provided by the vehicle-side battery can be converted into direct current suitable for charging the battery through the DC / DC unit, and the battery management system on the battery side uses this direct current to charge multiple battery cells in the battery.

[0046] As an example, taking the battery management system of the vehicle's power battery as the target module, when the battery management system of the power battery responds to the charging request, it can first determine that the remaining power of the power battery is greater than a certain threshold. For example, if the remaining power of the power battery is greater than 30%, it issues a start command to the DC / DC unit. At this time, the battery management system on the battery side can report the requested voltage and requested current to the DC / DC unit according to the lowest voltage among multiple battery cells. After receiving the working instruction, the requested voltage, and the requested current, the DC / DC unit outputs the corresponding direct current according to the requested voltage and requested current.

[0047] As an embodiment, step 120 specifically includes:

[0048] When the preset event is the first preset event, send a first charging request to the vehicle controller of the vehicle. When the preset event is the second preset event, wake up the vehicle controller of the vehicle and send a first charging request to the vehicle controller of the vehicle, or wake up the vehicle's power battery and send a second charging request to the power battery. Among them, the first charging request is used to instruct the vehicle controller to control the target battery of the vehicle to charge the battery; the second charging request is used to instruct the power battery to charge the battery.

[0049] In this embodiment, since the first preset event is a preset event triggered when the vehicle is in a non-sleep state, at this time, the vehicle controller in the vehicle is not powered off or in a sleep state, and thus a first charging request can be directly sent to the vehicle controller of the vehicle to instruct the vehicle controller to control the target battery of the vehicle to charge the battery. Here, the target battery includes the power battery of the vehicle and / or an additional battery pack configured in the vehicle, an energy storage device, etc.

[0050] As an example, in some special vehicles with many applicable scenarios and rich uses, such as RVs and transport trucks, the endurance of the vehicle can be improved by additionally configuring a battery pack, energy storage device, etc. in the vehicle. Based on this, when the vehicle is in a non-dormant state, the vehicle controller is the module with the highest authority in the vehicle. Therefore, by directly sending a first charging request to the vehicle's overall vehicle controller, it can instruct the overall vehicle controller to control the vehicle's power battery and / or the battery pack and energy storage device additionally configured in the vehicle to charge the battery.

[0051] As another example, contrary to the first preset event, the second preset event is a preset event triggered when the vehicle is in a dormant state. Therefore, at this time, the overall vehicle controller in the vehicle has been powered off or is in a dormant state. At this time, after waking up the vehicle's overall vehicle controller, a first charging request can be sent to the awakened overall vehicle controller to instruct the overall vehicle controller to control the target battery of the vehicle to charge the battery. In order to shorten the response time for charging the battery, in this embodiment, the vehicle's power battery can also be directly awakened and a second charging request can be sent to the power battery, thereby instructing the power battery to charge the battery.

[0052] In other embodiments, when the preset event is the second preset event, the vehicle's overall vehicle controller and the power battery can also be awakened simultaneously, and a first charging request can be sent to the vehicle's overall vehicle controller or a second charging request can be sent to the power battery. In this way, not only can the battery management systems of the overall vehicle controller and the power battery be awakened simultaneously, but the overall vehicle controller can also perform a discharge detection on the power battery to avoid over-discharging of the power battery.

[0053] 130: When charging the battery by the target module meets a preset condition, a preset instruction is sent to the target module, and the preset instruction is used to instruct the target module to stop charging the battery.

[0054] In 130, the preset condition is used to describe that the charge amount of the battery has met the power required to monitor the preset event within a specified duration. For example, the preset condition can be that the battery power is much greater than the battery over-discharge protection power. For another example, the preset condition can be that the battery power is 100%.

[0055] In this embodiment, when charging the battery by the target module meets a preset condition, by sending a preset instruction to the target module, it can further instruct the target module to stop charging the battery. In this way, not only can it be ensured that the battery can monitor the preset event within a specified duration, but it can also timely instruct the target module to stop using the electrical energy of the vehicle-side battery, avoiding excessive consumption of the electrical energy of the vehicle-side battery.

[0056] In the above solution, by monitoring a preset event for triggering a charging request, when the preset event occurs, a charging request can be sent to a target module corresponding to the preset event in the vehicle, and then the target module is instructed to charge the battery. Since the preset event includes a first preset event when the vehicle is in a non-sleep state and a second preset event when the vehicle is in a sleep state, regardless of whether the vehicle is in a non-sleep state or a sleep state, a charging request can be sent to the corresponding target module in the vehicle by monitoring the preset event, and then the target module is instructed to charge the battery. At the same time, when the charging of the battery by the target module meets the preset conditions, by sending a preset instruction to the target module, the target module is instructed to stop charging the battery, realizing that while timely instructing the target module in the vehicle to charge the battery, the charging operation can also be stopped in a planned manner, thereby avoiding the target module from running out of power due to charging the battery for a long time, and thus providing a battery charging solution that can improve the user experience and has a higher degree of intelligence.

[0057] As an embodiment, after step 120, the following steps 1.1 to 1.2 may further be included. Specifically:

[0058] Step 1.1: When the charging of the battery by the target module is successful, detect the charging current value of the battery.

[0059] Step 1.2: Determine a requested current value according to the charging current value, and send a corresponding adjustment instruction to the target module according to the requested current value. The adjustment instruction is used to instruct the target module to adjust the charging voltage to perform constant current charging for the battery.

[0060] As an example, in combination with Figure 1 , taking the battery management system of the vehicle power battery as the target module as an example, when the battery management system of the vehicle power battery responds to a charging request, it can first determine that the remaining power of the vehicle power battery is greater than a certain threshold. For example, if the remaining power of the vehicle power battery is greater than 30%, a start instruction is sent to the DC / DC unit. At this time, the battery management system on the battery side can report the requested voltage and the requested current to the DC / DC unit according to the lowest voltage among multiple battery cells. After receiving the working instruction, the requested voltage, and the requested current, the DC / DC unit outputs corresponding direct current according to the requested voltage and the requested current. The battery management system in the battery can detect the charging state of the battery cells through the analog front-end unit, such as detecting the charging current value of the battery cells, and then can send an adjustment instruction to the target module according to the requested current value. The target module adjusts the charging voltage according to the adjustment instruction, and then performs constant current charging for the battery through the DC / DC unit.

[0061] As an embodiment, after step 120, the following steps 2.1 to 2.2 may further be included. Specifically:

[0062] Step 2.1: When the charging of the battery by the target module fails, send a power-off command to the target module, where the power-off command is used to instruct the target module to perform a power-off operation.

[0063] Step 2.2: When it is determined that the target module has been powered off, stop providing the low-voltage power supply and prohibit the execution of the step of monitoring the preset event for triggering the replenishment power request.

[0064] Combined with Figure 1 In the example shown, in order to avoid the target module on the vehicle side being repeatedly awakened by the battery side, resulting in abnormal power consumption, in this embodiment, when it is determined that the charging of the battery by the target module fails, the battery management system of the battery needs to request the target module to power off, and after confirming that the power-off of the vehicle side where the target module is located is normal, the battery management system of the battery can control the circuit breaker to disconnect, thereby disconnecting the low-voltage power supply output and prohibiting the execution of the step of monitoring the preset event for triggering the replenishment power request, thereby avoiding serious power shortage of the battery.

[0065] In specific implementation, to determine whether the target module has been powered off, it can be determined according to whether the corresponding message is received from the target module according to the power-off command.

[0066] Exemplarily, as Figure 1 In the example shown, taking the target module as the vehicle controller, when the vehicle controller fails to charge the battery, the battery sends a power-off command to the vehicle controller, and the power-off command is used to instruct the vehicle controller to perform a power-off operation. When the vehicle controller completes the power-off according to the power-off command, it returns a vehicle network release message to the battery. The battery receives the vehicle network release message to determine that the target module has been powered off, and then stops providing the low-voltage power supply and prohibits the execution of the step of monitoring the preset event for triggering the replenishment power request.

[0067] It can be understood that when the charging of the battery by the target module fails, it may indicate that the electric energy of the vehicle-side battery is insufficient to charge the battery. Therefore, at this time, the battery management system of the battery needs to request the target module to power off, and after confirming that the power-off of the vehicle side where the target module is located is normal, the battery management system of the battery can control the circuit breaker to disconnect, thereby disconnecting the low-voltage power supply output and prohibiting the execution of the step of monitoring the preset event for triggering the replenishment power request, which can avoid serious power shortage of the battery, can also avoid the target module on the vehicle side being repeatedly awakened, and can also avoid power shortage of the vehicle-side battery.

[0068] Figure 3 Shows the implementation flowchart of a battery replenishment method provided by another embodiment of the present application. Different from Figure 2 the embodiment, the execution subject of the battery replenishment method provided in this embodiment is a vehicle equipped with a battery, and the battery is used to provide a low-voltage power supply. Combined with Figure 1In the example shown, the execution subject of this embodiment may specifically be the vehicle side, specifically the vehicle's overall vehicle controller and / or the vehicle-side battery. As Figure 3 shown, a method for battery charging provided in this embodiment includes:

[0069] 210: Receive a charging request sent by the battery through the target module.

[0070] In 210, the charging request is triggered when the battery monitors a preset event. The preset event includes at least a first preset event when the vehicle is in a non-sleep state and a second preset event when the vehicle is in a sleep state. The target module corresponds to the preset event.

[0071] In this embodiment, the charging request generally refers to a request for using electrical energy to charge the battery, that is, this charging request can also be understood as a charging request.

[0072] Exemplarily, in combination with Figure 1 and Figure 2 the embodiment of, when the preset event is the first preset event, the target module may be the overall vehicle controller. When the preset event is the second preset event, the target module may be the overall vehicle controller and / or the battery management system of the vehicle-side battery.

[0073] It is easy to understand that step 210 of this embodiment corresponds to Figure 2 step 120 of the embodiment. In specific implementation, a corresponding charging request response strategy can be configured in the overall vehicle controller and the battery management system of the vehicle-side battery, and then the battery can be charged by responding to this charging request.

[0074] 220: Respond to the charging request through the target module to charge the battery; where the target module is used to stop charging the battery in response to a preset instruction sent by the battery when the charging of the battery meets a preset condition.

[0075] It is easy to understand that step 220 of this embodiment corresponds to Figure 2 step 130 of the embodiment.

[0076] In specific implementation, the preset condition is used to describe that the charging amount of the battery has met the power required to monitor the preset event within a specified duration. For example, the preset condition may be that the battery power is much greater than the battery over-discharge protection power. Another example is that the preset condition may be that the battery power is 100%.

[0077] It is easy to understand that since steps 210 to 220 provided in this embodiment correspond to Figure 1 steps 120 to 130 in the embodiment, more implementation manners and beneficial effects of this embodiment can be referred to Figure 1The content of the embodiments corresponding to steps 120 to 130 will not be elaborated here.

[0078] In some embodiments, the preset condition may also be a charging duration threshold for the target module to charge the battery. Here, this charging duration threshold can also be used to describe that the charging amount of the battery has met the power required to monitor the preset event within the specified duration. Based on this, the target module can perform charging timing on the battery, and then when the charging duration is not less than the charging duration threshold, it is determined that the battery charging meets the preset condition. At this time, the target module can trigger a preset command and then stop charging the battery.

[0079] As an embodiment, the method for battery replenishment further includes: when receiving an adjustment command sent by the battery according to the requested current value through the target module, adjusting the charging voltage through the target module to perform constant current charging on the battery; where the requested current value is determined by the battery according to the charging current value, and the charging current value is detected by the battery when it determines that the target module has successfully charged the battery.

[0080] As an example, in combination with Figure 1 , taking the battery management system of the vehicle power battery as the target module as an example, when the battery management system of the power battery responds to the replenishment request, it can first determine that the remaining power of the power battery is greater than a certain threshold. For example, if the remaining power of the power battery is greater than 30%, it issues a start command to the DC / DC unit. At this time, the battery management system on the battery side can report the requested voltage and requested current to the DC / DC unit according to the lowest voltage among multiple battery cells. After receiving the working command, the requested voltage, and the requested current, the DC / DC unit outputs corresponding direct current according to the requested voltage and requested current. The battery management system in the battery can detect the charging state of the battery cells through the analog front-end unit, such as detecting the charging current value of the battery cells, and then can send an adjustment command to the target module according to the requested current value. The target module adjusts the charging voltage according to this adjustment command, and then performs constant current charging on the battery through the DC / DC unit.

[0081] As an embodiment, the method for battery replenishment further includes: when receiving a power-off command sent by the battery through the target module, performing a power-off operation according to the power-off command.

[0082] In this embodiment, the power-off command can be triggered by the battery management system of the battery when it determines that the target module has failed to charge the battery. Here, when receiving this power-off command, the target module performs a power-off operation by responding to the power-off command.

[0083] In combination with Figure 1In the shown example, to avoid abnormal power consumption caused by the repeated wake-up of the target module on the vehicle side by the battery side, in this embodiment, when it is determined that the target module fails to charge the battery, the battery management system of the battery needs to request the target module to power off. After confirming that all components on the vehicle side where the target module is located have been powered off normally, the battery management system of the battery can disconnect the low-voltage power output by controlling the circuit breaker, and prohibit the execution of the step of monitoring the preset event for triggering the charging request, thereby avoiding severe battery discharge.

[0084] It is easy to understand that the execution subject of the steps provided in this embodiment is the vehicle, which can correspond to Figure 2 the steps in the embodiment. Therefore, in specific implementation, reference can be made to Figures 1 to 2 the corresponding embodiment and implement Figure 3 the method steps and effects of battery charging in the embodiment. Therefore, details are not described herein.

[0085] Figure 4 This is a structural block diagram of a battery provided by an embodiment of the present application. As Figure 4 shown, the battery 4 in this embodiment includes: a processor 40, a memory 41, and a computer program 42 stored in the memory 41 and executable on the processor 40, such as a program for the method of battery charging. When the processor 40 executes the computer program 42, it implements the steps in each of the above embodiments of the method for battery charging, such as Figure 2 the steps shown. For specific details, please refer to Figure 2 the relevant descriptions in the corresponding embodiment, which are not elaborated here.

[0086] Figure 5 This is a structural block diagram of a vehicle provided by an embodiment of the present application. As Figure 5 shown, the vehicle 5 in this embodiment includes: a processor 50, a memory 51, and a computer program 52 stored in the memory 51 and executable on the processor 50, such as a program for the method of battery charging. When the processor 50 executes the computer program 52, it implements the steps in each of the above embodiments of the method for battery charging, such as Figure 2 the steps shown. For specific details, please refer to Figure 2 the relevant descriptions in the corresponding embodiment, which are not elaborated here.

[0087] The battery and the vehicle may include, but are not limited to, a processor and a memory. Those skilled in the art can understand that Figure 4 this is merely an example of the battery 4, Figure 5 this is merely an example of the vehicle 5, and does not constitute a limitation on the battery 4 or the vehicle 5. It may include more or fewer components than shown, or combine some components, or different components. For example, the vehicle may further include input / output devices, network access devices, buses, etc.

[0088] The so-called processor may be a central processing unit (CPU), or may also be other general-purpose processors, digital signal processors (DSPs), application specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc.

[0089] The memory may be an internal storage unit of the battery 4 or the vehicle 5, such as a hard disk or memory of the battery 4 or the vehicle 5. The memory may also be an external storage device of the battery 4 or the vehicle 5, such as a plug-in hard disk, a smart media card (SMC), a secure digital (SD) card, a flash card, etc. equipped on the battery 4 or the vehicle 5. Further, the memory may also include both an internal storage unit of the battery 4 or the vehicle 5 and an external storage device. The memory is used to store the computer program and other programs and data required by the vehicle. The memory may also be used to temporarily store data that has been output or is to be output.

[0090] The above-described 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 foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be included within the protection scope of the present application.

Claims

1. A method for replenishing battery power, characterized in that: The battery is configured in a vehicle and used to provide a low voltage power supply. The method includes: Monitoring a preset event for triggering a power replenishment request, wherein the preset event includes at least a first preset event when the vehicle is in a non-sleeping state and a second preset event when the vehicle is in a sleeping state; In response to the preset event, sending a power replenishment request to a target module in the vehicle corresponding to the preset event, wherein the power replenishment request is used to instruct the target module to charge the battery; When the target module charges the battery and a preset condition is satisfied, a preset instruction is sent to the target module, where the preset instruction is used to instruct the target module to stop charging the battery.

2. The battery charging method according to claim 1, characterized in that: The first preset event includes: the remaining power of the battery is lower than a preset SOC threshold and / or the voltage of the battery is lower than a preset voltage threshold; The second preset event includes at least one of: the battery triggering a timed wake-up instruction, the remaining power of the battery being lower than a preset SOC threshold, and the voltage of the battery being lower than a preset voltage threshold.

3. The battery charging method according to claim 2, characterized in that: The step of sending a power replenishment request to a target module in the vehicle corresponding to the preset event in response to the preset event includes: When the preset event is the first preset event, sending a first power replenishment request to a vehicle controller of the vehicle; When the preset event is the second preset event, waking up the vehicle controller of the vehicle and sending a first power replenishment request to the vehicle controller of the vehicle, or waking up the power battery of the vehicle and sending a second power replenishment request to the power battery; Among them, the first power replenishment request is used to instruct the vehicle controller to control the target battery of the vehicle to charge the battery; the second power replenishment request is used to instruct the power battery to charge the battery.

4. The battery charging method according to any one of claims 1 to 3, characterized in that: After the step of sending a power replenishment request to a target module corresponding to the preset event in the vehicle in response to the preset event, the method further includes: When the target module successfully charges the battery, detecting a charging current value of the battery; A requested current value is determined according to the charging current value, and a corresponding adjustment instruction is sent to the target module according to the requested current value, wherein the adjustment instruction is used to instruct the target module to adjust the charging voltage to perform constant current charging for the battery.

5. The battery charging method according to claim 4, characterized in that: After the step of sending a power replenishment request to a target module corresponding to the preset event in the vehicle in response to the preset event, the method further includes: When the target module fails to charge the battery, a power-off instruction is sent to the target module, wherein the power-off instruction is used to instruct the target module to perform a power-off operation; When it is determined that the target module has been powered off, the low-voltage power supply is stopped from being provided, and the step of monitoring a preset event for triggering a power replenishment request is prohibited from being executed.

6. A method for replenishing battery power, characterized in that: In a vehicle, the vehicle is equipped with a battery, the battery is used to provide a low-voltage power supply, and the method includes: receiving a power replenishment request sent by the battery through a target module; wherein the power replenishment request is triggered when the battery detects a preset event, and the preset event at least includes a first preset event when the vehicle is in a non-dormant state and a second preset event when the vehicle is in a dormant state; and the target module corresponds to the preset event; The target module responds to the power replenishment request to charge the battery; wherein the target module is used to stop charging the battery in response to a preset instruction sent by the battery when charging the battery meets a preset condition.

7. The battery charging method according to claim 6, characterized in that: Also includes: When the target module receives an adjustment instruction sent by the battery according to the requested current value, the target module adjusts the charging voltage to perform constant current charging for the battery; wherein the requested current value is determined by the battery according to the charging current value, and the charging current value is detected by the battery when it is determined that the target module has successfully charged the battery.

8. The method for recharging a battery as claimed in claim 7, characterized in that: Also includes: When a power-off instruction sent by the battery is received through the target module, a power-off operation is performed according to the power-off instruction.

9. A battery, characterized in that: include: A memory, a processor, and a computer program stored in the memory and executable on the battery, wherein the processor implements the steps of the battery charging method according to any one of claims 1 to 5 when executing the computer program.

10. A vehicle, characterized in that: include: A memory, a processor, and a computer program stored in the memory and executable on the vehicle, wherein when the processor executes the computer program, the steps of the battery charging method as described in any one of claims 1 to 5 are implemented; or the steps of the battery charging method as described in claim 6 or 7 are implemented.

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