Battery charging method and system

Abstract

The present application provides a method and system for charging a car battery, which is applied to a control device. The method for charging a car battery provided by the present application includes: obtaining the remaining battery capacity of the target vehicle and the vehicle status of the target vehicle; generating a charging instruction according to the remaining battery capacity and a preset charging strategy; controlling the start-up of the vehicle's large battery through the charging instruction, and controlling the vehicle's large battery to charge the battery; wherein the preset charging strategy includes a charging strategy that limits the number of discharges and / or the discharge duration of the vehicle's large battery during the charging cycle of the battery. The present application generates a charging instruction according to the vehicle status of the target vehicle and the corresponding preset charging strategy to limit the number of discharges and the discharge duration of the target vehicle's large battery during the battery charging cycle, thereby preventing the vehicle's large battery from discharging too frequently, reducing the power consumption of the vehicle's large battery, and improving the service life of the vehicle's large battery.

Description

Technical Field

[0001] The present application relates to the field of batteries, and more specifically, to a battery charging method and system. Background Art

[0002] Before electric vehicles are powered by high voltage, the vehicle controller, motor controller, battery management system, DCDC converter, instruments and other equipment are all powered by the starting battery. Therefore, the battery plays a vital role in the control system of electric vehicles.

[0003] The increasing availability of various automotive features, such as over-the-air (OTA), "Sentry Mode," and remote vehicle control, places an increasing strain on battery power. Simultaneously, battery drain during dormancy is becoming increasingly severe. To mitigate this drain, batteries need to be recharged. This recharging process is subject to factors such as battery sensor accuracy errors, power consumption during the link, and battery aging. Consequently, continuous discharge of the battery during charging can reduce vehicle range. Summary of the Invention

[0004] In view of this, the purpose of the embodiments of the present application is to provide a battery charging method and system that can solve the problem of reduced vehicle mileage caused by continuous discharge of a large battery during battery charging.

[0005] In a first aspect, an embodiment of the present application provides a method for charging a vehicle battery, which is applied to a control device. The method includes: obtaining the remaining battery capacity of a target vehicle and the vehicle status of the target vehicle; generating a charging instruction based on the remaining battery capacity and a preset charging strategy; controlling the start-up of a large battery of the vehicle through the charging instruction, and controlling the large battery of the vehicle to charge the battery; wherein the preset charging strategy includes a charging strategy that limits the number of discharges and / or the discharge duration of the large battery of the vehicle within the charging cycle of the battery.

[0006] In the above implementation process, based on the target vehicle's vehicle status and a preset charging strategy, when the target vehicle's battery remaining capacity does not meet the requirements, a corresponding charging instruction is generated to activate the vehicle's large battery to charge the battery, thereby ensuring that the battery's remaining capacity is within a specified range. By generating the charging instruction based on the target vehicle's vehicle status and a corresponding preset charging strategy, the number of discharges and / or discharge duration of the target vehicle's large battery during the battery charging cycle is limited, thereby preventing the vehicle's large battery from being discharged too frequently or for too long, reducing the vehicle's large battery's power consumption, and thus extending the vehicle's large battery's service life.

[0007] In one embodiment, generating a charging instruction based on the remaining battery capacity and a preset charging strategy includes: comparing the remaining battery capacity with a remaining capacity threshold; wherein the remaining capacity threshold is the minimum remaining capacity value allowed by the battery; if it is determined that the remaining battery capacity is lower than the remaining capacity threshold, generating a charging instruction based on the preset charging strategy.

[0008] In the above implementation process, by comparing the remaining capacity of the battery with the remaining capacity threshold, when it is determined that the remaining capacity of the battery is low, a charging instruction is generated according to the vehicle status of the target vehicle and the preset charging strategy, and then the battery is charged so that the battery power can maintain the control system of the target vehicle and the battery power is maintained in an appropriate range to prevent the battery from being depleted.

[0009] In one embodiment, the vehicle state of the target vehicle includes the vehicle state of the target vehicle in a cycle of starting and sleeping; the power replenishment instruction includes: limiting the number of power replenishments of the battery of the target vehicle in a cycle of starting and sleeping to 1 time.

[0010] In the above implementation process, by limiting the number of battery recharges of the target vehicle during the startup and sleep time period to once, the target vehicle is prevented from frequently triggering the vehicle's large battery recharge within a cycle, thereby reducing the power consumed by the vehicle's large battery and improving the mileage of the vehicle's large battery.

[0011] In one embodiment, the vehicle status of the target vehicle includes that the sleep time of the target vehicle exceeds a vehicle idle time threshold; the charging instruction includes: limiting the number of times the battery can be charged within a preset time to no more than 2 times, and the charging time for each time is limited to the preset charging time; wherein, the preset time includes 24 hours, and the preset charging time includes 2 hours.

[0012] In the above implementation process, when the target vehicle has been idle for a long time, the number of recharges for the target vehicle within 24 hours is further restricted to no more than 2 times, and each recharge duration is no more than 2 hours. By limiting the recharge time period, number of recharges, and recharge duration, the problem of continuous discharge of the vehicle's large battery, which in turn causes a reduction in vehicle mileage, can be prevented. By setting a recharge strategy for the target vehicle when it has not been used for a long time, it can be ensured that the battery can be recharged even when the vehicle has not been used for a long time, so that the battery will not be depleted, thereby increasing the battery life. At the same time, it also prevents the vehicle's large battery from continuous discharge and increases the mileage that the vehicle's large battery can support.

[0013] In one embodiment, after the vehicle's large battery is started by the charging instruction control and the vehicle's large battery is controlled to charge the storage battery, the method further includes: obtaining the charging current output by the vehicle's large battery to the storage battery; determining whether the charging current is less than a current setting value; if the charging current is less than the current setting value, determining whether a duration during which the charging current is less than the current setting value exceeds a low current duration threshold; if a duration during which the charging current is less than the current setting value exceeds the low current duration threshold, controlling the vehicle's large battery to exit charging.

[0014] In this implementation, the battery's current and duration of periods below the set current are compared to determine if the battery's energy utilization is low during charging, with the amount of energy consumed far exceeding the amount entering the battery. In this case, the vehicle's main battery is controlled to exit charging, reducing the number of ineffective charging attempts and effectively minimizing range loss.

[0015] In a second aspect, an embodiment of the present application also provides a vehicle battery charging system, comprising: a control device, a vehicle large battery, and a current converter; wherein the control device is used to obtain the remaining battery capacity of the target vehicle and the vehicle status of the target vehicle; the control device is also used to generate a charging instruction based on the remaining battery capacity and a preset charging strategy, and send the charging instruction to the vehicle large battery to control the start-up of the vehicle large battery; the vehicle large battery is used to transmit high voltage electricity to the current converter according to the charging instruction; the current converter is used to convert the high voltage electricity into low voltage electricity and transmit it to the battery; wherein the preset charging strategy includes a charging strategy that limits the number of discharges and discharge duration of the vehicle large battery within the charging cycle of the battery.

[0016] During the above implementation process, the control device generates a charging instruction based on the actual situation of the battery and the corresponding preset charging strategy, and executes the charging instruction through the vehicle's large battery. After the vehicle's large battery outputs high-voltage current, it converts the high-voltage current into low-voltage current through a current converter and transmits it to the battery. The battery charging is completed through the mutual cooperation between the vehicle's large battery, the control device, and the current converter. In addition, the control device generates the charging instruction based on the actual situation of the battery, the vehicle status, and the preset charging strategy, thereby limiting the number of discharges and discharge duration of the target vehicle's large battery during the battery charging cycle, thereby preventing the vehicle's large battery from discharging too frequently, reducing the power consumption of the vehicle's large battery, and thus increasing the service life of the vehicle's large battery.

[0017] In one embodiment, the control device includes a gateway or a vehicle controller; the gateway or the vehicle controller is used to obtain the remaining battery capacity and the vehicle status of the target vehicle; the gateway or the vehicle controller is also used to generate a charging instruction based on the remaining battery capacity and a preset charging strategy, and send the charging instruction to the vehicle's large battery to control the start-up of the vehicle's large battery.

[0018] In this implementation, the gateway or vehicle controller generates a charging command based on the remaining battery charge and the target vehicle's status. This command is then sent to the vehicle's main battery to activate the main battery. This battery charging control is accomplished by a single device within the gateway or vehicle controller. This single device, the gateway or vehicle controller, is required for the entire process, reducing both the equipment requirements and the cost of the vehicle battery charging system.

[0019] In one embodiment, the control device includes a gateway and a vehicle controller; wherein the gateway obtains the remaining battery capacity of the target vehicle and the vehicle status of the target vehicle; the gateway is also used to generate a charging instruction based on the remaining battery power and a preset charging strategy, and send the charging instruction to the vehicle controller; the vehicle controller is used to send the charging instruction to the vehicle large battery to control the start-up of the vehicle large battery.

[0020] In the above implementation, the gateway generates a charging command based on the remaining battery charge and the target vehicle's status. The vehicle controller then transmits this command to the vehicle's main battery, activating it. The gateway and vehicle controller collaborate to issue the charging command and activate the main battery, completing battery charging control. Throughout the entire process, the gateway and vehicle controller each perform a portion of the action, reducing their respective processing tasks and improving efficiency.

[0021] In one embodiment, the automobile battery charging system further includes: a battery sensor; the battery sensor is used to obtain power data of the battery and convert the power data into the remaining capacity of the battery.

[0022] In the above implementation process, the battery power data is obtained by setting up a battery sensor. Since the battery sensor has a simple structure and low cost, it can realize real-time monitoring of the battery power while reducing the cost of the battery.

[0023] In a third aspect, an embodiment of the present application further provides a control device comprising: a processor and a memory, wherein the memory stores machine-readable instructions executable by the processor, and when the control device is running, the machine-readable instructions are executed by the processor to perform the steps of the method in the above-mentioned first aspect, or any possible implementation of the first aspect.

[0024] In a fourth aspect, an embodiment of the present application further provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the steps of the method for charging a vehicle battery in the above-mentioned first aspect or any possible implementation of the first aspect are executed.

[0025] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, the following embodiments are given in conjunction with the accompanying drawings for detailed description as follows. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0027] Figure 1 A flow chart of a method for charging a car battery provided in an embodiment of the present application;

[0028] Figure 2 A schematic diagram of the structure of the vehicle battery charging system provided in an embodiment of the present application;

[0029] Figure 3 A block diagram of a control device provided in an embodiment of the present application;

[0030] Figure 4 Schematic diagram of the functional modules of the automobile battery charging device provided in an embodiment of the present application.

[0031] Figure numerals: 10-automobile battery charging system, 100-control device, 110-gateway, 120-vehicle controller, 111-memory, 112-storage controller, 113-processor, 200-vehicle large battery, 300-current converter, 400-battery sensor, 20-battery, 301-acquisition module, 302-instruction generation module, 303-starting module. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present application will be described below in conjunction with the accompanying drawings in the embodiments of the present application.

[0033] It should be noted that similar reference numerals and letters represent similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings. At the same time, in the description of this application, the terms "first", "second", etc. are only used to distinguish the description and should not be understood as indicating or implying relative importance.

[0034] As the new energy vehicle industry enters a period of rapid development with intelligent and connected technologies, the number of electronic control units (ECUs) installed in each vehicle continues to increase. To power these ECUs, requirements for battery capacity and service life are gradually increasing. By sensing changes in battery charge, monitoring the battery level using a gateway, and controlling the charging of the main battery, the battery charge can be maintained within an appropriate range to prevent battery depletion. However, current battery recharging strategies have the following shortcomings: insufficient battery sensor accuracy leads to inaccurate measurement of actual charge; excessive recharging can lead to excessive main battery power consumption and reduced mileage; and recharging strategies can only temporarily alleviate battery depletion but cannot fundamentally address long-term abnormal power consumption and battery aging.

[0035] In view of this, the inventor of the application has proposed a method for charging automobile batteries through long-term research. The method generates corresponding charging instructions based on the remaining battery capacity of the battery, the vehicle status of the target vehicle and the preset charging strategy. The preset charging strategy limits the number of discharges and discharge duration of the vehicle's large battery during the battery's charging cycle. This can ensure that the remaining battery capacity of the battery is within the specified range while preventing the vehicle's large battery from being discharged too frequently, thereby reducing the power consumption of the vehicle's large battery and improving the service life of the vehicle's large battery.

[0036] To facilitate understanding of this embodiment, a method for charging a car battery disclosed in an embodiment of this application is first introduced in detail.

[0037] See also Figure 1 , is a flow chart of the method for charging a car battery provided by the embodiment of the present application. Figure 1 The specific process shown is described in detail.

[0038] Step 201: Obtain the remaining battery capacity of the target vehicle and the vehicle status of the target vehicle.

[0039] New energy vehicles include a battery for the vehicle control system and a large vehicle battery for the vehicle power system. The large vehicle battery has a large capacity and stores a lot of energy. If the remaining capacity of the battery is low, the large vehicle battery can usually be used to replenish the remaining capacity of the battery.

[0040] The remaining capacity of the battery here can be obtained through the battery sensor.

[0041] The vehicle state of the target vehicle includes the vehicle state of the target vehicle in a cycle of starting and sleeping and the vehicle state of the target vehicle when the sleeping time exceeds the vehicle idle time threshold.

[0042] In some embodiments, before step 201 , the method further includes determining a vehicle state of the target vehicle based on a start-up time, a sleep time, and a vehicle idle time threshold of the target vehicle.

[0043] Specifically, it is determined whether the sleep time exceeds the vehicle idle time threshold. If the sleep time exceeds the vehicle idle time threshold, the vehicle status of the target vehicle is determined to be that the sleep time of the target vehicle exceeds the vehicle idle time threshold.

[0044] If the sleep time does not exceed the vehicle idle time threshold, the current time point is determined to be within the time from the start time of the target vehicle to the next start time of the target vehicle. At this time, the vehicle state of the target vehicle is determined to be within a cycle of start and sleep.

[0045] The start time of the target vehicle here is the most recent start time of the target vehicle from the current time point, and the sleep time of the target vehicle is the duration from the most recent stop time of the target vehicle from the current time point to the current time point.

[0046] The vehicle idle time threshold here can be set according to actual conditions. For example, the vehicle idle time threshold can be set to 48 hours, 60 hours, 75 hours, etc. The setting of the vehicle idle time threshold can be adjusted according to different vehicles and different vehicle large batteries, and this application does not impose specific restrictions.

[0047] Step 202 : generating a charging instruction according to the remaining capacity of the battery, the vehicle status of the target vehicle, and a preset charging strategy.

[0048] The preset power replenishment strategy here may be a power replenishment strategy pre-set to a control device of the target vehicle.

[0049] The preset charging strategy includes a charging strategy that limits the number of discharges and / or the discharge duration of the vehicle's large battery within a charging cycle of the battery.

[0050] In some embodiments, the preset charging strategy may limit the number of discharges of the vehicle's large battery during the battery's charging cycle to a fixed number of discharges. For example, the fixed number of discharges may be 1, 2, or 5 times. The preset charging strategy may also limit the discharge duration of the vehicle's large battery during the battery's charging cycle to a fixed discharge duration. For example, the fixed discharge duration may be 1 hour, 2 hours, or 3 hours. The preset charging strategy may also limit the number of discharges of the vehicle's large battery during the battery's charging cycle to a fixed number of discharges and the duration of each discharge to a fixed discharge duration. For example, the number of discharges of the vehicle's large battery during the battery's charging cycle may be limited to 2 times, with each discharge duration limited to 2 hours. Alternatively, the number of discharges of the vehicle's large battery during the battery's charging cycle may be limited to 3 times, with each discharge duration limited to 1 hour. Alternatively, the number of discharges of the vehicle's large battery during the battery's charging cycle may be limited to 1 time, with each discharge duration limited to 3 hours.

[0051] Step 203: Start the vehicle's large battery through the charging instruction control, and control the vehicle's large battery to charge the storage battery.

[0052] It can be understood that after generating the power replenishment instruction, the control device sends the power replenishment instruction to the vehicle's large battery. After receiving the power replenishment instruction, the vehicle's large battery discharges under the control of the power replenishment instruction and transmits the electrical energy to the battery through the line to replenish the battery.

[0053] The charging instruction here may include information such as the charging capacity, charging time, and charging current.

[0054] In the above implementation process, based on the target vehicle's vehicle status and a preset charging strategy, when the target vehicle's battery remaining capacity does not meet the requirements, a corresponding charging instruction is generated to activate the vehicle's large battery to charge the battery, thereby ensuring that the battery's remaining capacity is within a specified range. By generating the charging instruction based on the target vehicle's vehicle status and a corresponding preset charging strategy, the number of discharges and the duration of the target vehicle's large battery during the battery charging cycle are limited, thereby preventing the vehicle's large battery from being discharged too frequently or for too long, reducing the vehicle's large battery's power consumption, and thus extending the vehicle's large battery's service life.

[0055] In one possible implementation, step 202 includes: comparing the remaining battery capacity with a remaining capacity threshold; if it is determined that the remaining battery capacity is lower than the remaining capacity threshold, generating a charging instruction based on the vehicle state of the target vehicle and a preset charging strategy.

[0056] The remaining capacity threshold is the minimum remaining capacity value allowed by the battery.

[0057] Optionally, the battery remaining capacity threshold can be determined by a preset ratio of the total battery capacity. The preset ratio can be 50%, 60%, 70%, 80%, 90%, etc. For example, if the total battery capacity is 100AH ​​and the preset ratio is 80%, then the remaining capacity threshold is 80AH. The battery remaining capacity threshold can also be determined by a preset remaining capacity value, such as 10AH, 20AH, 30AH, 40AH, etc.

[0058] When it is determined that the remaining battery capacity of the target vehicle is lower than the remaining capacity threshold, it can be further determined that the battery power is too low. At this time, the battery needs to be recharged to ensure that the battery power can maintain the control system of the target vehicle, or to keep the battery power in an appropriate range to prevent the battery from running out of power.

[0059] In the above implementation process, by comparing the remaining capacity of the battery with the remaining capacity threshold, when it is determined that the remaining capacity of the battery is low, a charging instruction is generated according to the vehicle status of the target vehicle and the preset charging strategy, and then the battery is charged so that the battery power can maintain the control system of the target vehicle and the battery power is maintained in an appropriate range to prevent the battery from being depleted.

[0060] In a possible implementation, the charging instruction includes limiting the number of times the battery of the target vehicle is charged to once within a cycle of starting and sleeping.

[0061] The above-mentioned power replenishment instruction is for a cycle of the target vehicle starting and sleeping.

[0062] Here, a target vehicle's "start-and-sleep cycle" refers to the time between two starts. For example, if the target vehicle was last started at 8:00 AM on a given day and then started again at 5:00 PM, then a start-and-sleep cycle for the target vehicle refers to the period from 8:00 AM to 5:00 PM. During this period, the target vehicle's battery can only be recharged once.

[0063] It can be understood that the above-mentioned charging times can also be 2 times, 3 times, 5 times, etc. The charging times can be adjusted according to the actual situation of the battery and vehicle large battery model, target vehicle requirements, etc. This application does not make specific restrictions.

[0064] In the above implementation process, by limiting the number of battery recharges of the target vehicle during the startup and sleep time period to once, the target vehicle is prevented from frequently triggering the vehicle's large battery recharge within a cycle, thereby reducing the power consumed by the vehicle's large battery and improving the mileage of the vehicle's large battery.

[0065] In a possible implementation, the charging instruction includes: limiting the number of times the battery can be charged within a preset time period to no more than 2 times, and limiting the charging time of each time to the preset charging time.

[0066] Among them, the preset duration includes 24 hours, and the preset charging duration includes 2 hours.

[0067] The above-mentioned charging instruction is for the target vehicle whose dormancy time exceeds the vehicle idle time threshold.

[0068] The 24 hours here refers to the 24 hours of a day, that is, from 12:00 AM to 12:00 PM, or from 8:00 AM on the first day to 8:00 AM on the next day, or from 10:00 PM on the first day to 10:00 PM on the next day.

[0069] The number of times the battery can be recharged within a preset time period, the preset duration, and the preset recharge duration can be adjusted based on actual conditions. For example, the number of times the battery can be recharged within a preset time period can be set to no more than 3, 4, or 5 times. The preset duration can be set to 12 hours, 36 hours, or 48 hours, for example. The preset recharge duration can be set to 1 hour, 3 hours, or 5 hours, for example.

[0070] In the above implementation process, when the target vehicle has been idle for a long time, the number of recharges for the target vehicle within 24 hours is further restricted to no more than 2 times, and each recharge duration is no more than 2 hours. By limiting the recharge time period, number of recharges, and recharge duration, the problem of continuous discharge of the vehicle's large battery, which in turn causes a reduction in vehicle mileage, can be prevented. By setting a recharge strategy for the target vehicle when it has not been used for a long time, it can be ensured that the battery can be recharged even when the vehicle has not been used for a long time, so that the battery will not be depleted, thereby increasing the battery life. At the same time, it also prevents the vehicle's large battery from continuous discharge and increases the mileage that the vehicle's large battery can support.

[0071] In one possible implementation, after step 203, the method further includes: obtaining the charging current output by the vehicle's large battery to the storage battery; determining whether the charging current is less than a current setting value; if the charging current is less than the current setting value, determining whether a duration during which the charging current is less than the current setting value exceeds a low current duration threshold; if a duration during which the charging current is less than the current setting value exceeds the low current duration threshold, controlling the vehicle's large battery to exit charging.

[0072] The current setting value here is the charging current when the battery power utilization rate is lower than the preset ratio. The current setting value can be 0.5A, 1A, 2A, etc. The current setting value can be set according to the battery model, material and actual needs. This application does not limit the current setting value.

[0073] When the charging current is less than the set current value, the battery's energy utilization rate is considered low, meaning the amount of energy consumed to maintain the charging is significantly greater than the amount of energy being charged to the battery. Therefore, when the charging current is less than the set current value, the charging state is considered ineffective. In this case, to prevent excessive consumption of the vehicle's main battery, the vehicle's main battery will stop charging the battery.

[0074] During the actual charging process, the charging current may be less than the set current value due to some temporary faults. However, in this case, the current less than the set current value may only be less than the set current value for a period of time. To prevent unexpected factors from affecting the judgment result and causing incorrect decisions, a low current duration threshold can be set. When the charging current is less than the set current value for a period of time exceeding the low current duration threshold, the vehicle's large battery will stop charging. This can accurately determine whether the vehicle's large battery should stop charging when the battery energy utilization rate is low.

[0075] In this implementation, the battery's current and duration of periods below the set current are compared to determine if the battery's energy utilization is low during charging, with the amount of energy consumed far exceeding the amount entering the battery. In this case, the vehicle's main battery is controlled to exit charging, reducing the number of ineffective charging attempts and effectively minimizing range loss.

[0076] like Figure 2 FIG. 1 is a schematic diagram of the structure of a vehicle battery charging system 10 provided in an embodiment of the present application. The vehicle battery charging system 10 includes: a control device 100 , a vehicle large battery 200 , and a current converter 300 .

[0077] One end of the control device 100 is connected to a first end of the vehicle large battery 200 , the other end of the control device 100 is connected to one end of the battery 20 , the other end of the vehicle large battery 200 is connected to one end of the current converter 300 , and the other end of the current converter 300 is connected to the other end of the battery 20 .

[0078] Among them, the control device 100 is used to obtain the remaining capacity of the battery 20 of the target vehicle and the vehicle status of the target vehicle; the control device 100 is also used to generate a charging instruction based on the remaining capacity of the battery 20 and the preset charging strategy, and send the charging instruction to the vehicle large battery 200 to control the start-up of the vehicle large battery 200.

[0079] The vehicle large battery 200 is used to transmit high voltage electricity to the current converter 300 according to the power replenishment instruction.

[0080] The current converter 300 is used to convert high voltage electricity into low voltage electricity and transmit the low voltage electricity to the battery 20 .

[0081] The preset charging strategy includes a charging strategy that limits the number of discharges and the discharge duration of the vehicle large battery 200 within the charging cycle of the storage battery 20 .

[0082] The battery 20 is used to power the control system of the target vehicle. The high current battery is used to power the power system of the target vehicle.

[0083] The current converter 300 may be a Hall current converter 300 or a digital current converter 300 .

[0084] In some implementations, such as Figure 3 As shown, the control device includes: a memory 111, a storage controller 112, and a processor 113. A person skilled in the art will understand that Figure 3 The structure shown is only for illustration and does not limit the structure of the control device. Figure 3 More or fewer components than shown, or with Figure 3 Different configurations shown.

[0085] The memory 111, storage controller 112, and processor 113 are electrically connected to each other, directly or indirectly, to enable data transmission or interaction. For example, these components may be electrically connected to each other via one or more communication buses or signal lines. The processor 113 is used to execute the executable modules stored in the memory.

[0086] The memory 111 may be, but is not limited to, a random access memory (RAM), a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), etc. The memory 111 is used to store programs, and the processor 113 executes the programs after receiving an execution instruction. The method executed by the control device 100 defined by the process disclosed in any embodiment of the present application can be applied to the processor 113 or implemented by the processor 113.

[0087] The processor 113 may be an integrated circuit chip with signal processing capabilities. The processor 113 may be a general-purpose processor, including a central processing unit (CPU), a network processor (NP), etc.; it may also be a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components. The methods, steps, and logic block diagrams disclosed in the embodiments of the present application may be implemented or executed. The general-purpose processor may be a microprocessor or any conventional processor.

[0088] During the above implementation process, the control device generates a charging instruction based on the actual situation of the battery and the corresponding preset charging strategy, and executes the charging instruction through the vehicle's large battery. After the vehicle's large battery outputs high-voltage current, it converts the high-voltage current into low-voltage current through a current converter and transmits it to the battery. The battery charging is completed through the mutual cooperation between the vehicle's large battery, the control device, and the current converter. In addition, the control device generates the charging instruction based on the actual situation of the battery, the vehicle status, and the preset charging strategy, thereby limiting the number of discharges and discharge duration of the target vehicle's large battery during the battery charging cycle, thereby preventing the vehicle's large battery from discharging too frequently, reducing the power consumption of the vehicle's large battery, and thus increasing the service life of the vehicle's large battery.

[0089] In a possible implementation, the control device 100 includes a gateway 110 or a vehicle controller 120. The gateway 110 or the vehicle controller 120 is used to obtain the remaining capacity of the battery 20 of the target vehicle and the vehicle status of the target vehicle.

[0090] Among them, one end of the gateway 110 or the vehicle controller 120 is connected to the first end of the vehicle large battery 200, the other end of the gateway 110 or the vehicle controller 120 is connected to one end of the battery 20, the other end of the vehicle large battery 200 is connected to one end of the current converter 300, and the other end of the current converter 300 is connected to the other end of the battery 20.

[0091] The gateway 110 or the vehicle controller 120 is further configured to generate a charging instruction based on the remaining capacity of the battery 20 and a preset charging strategy, and send the charging instruction to the vehicle large battery 200 to control the start-up of the vehicle large battery 200 .

[0092] In this implementation, the gateway or vehicle controller generates a charging command based on the remaining battery charge and the target vehicle's status. This command is then sent to the vehicle's main battery to activate the main battery. This battery charging control is accomplished by a single device within the gateway or vehicle controller. This single device, the gateway or vehicle controller, is required for the entire process, reducing both the equipment requirements and the cost of the vehicle battery charging system.

[0093] In a possible implementation, the control device 100 includes a gateway 110 and a vehicle controller 120 .

[0094] Among them, the gateway 110 is used to obtain the remaining capacity of the battery 20 of the target vehicle and the vehicle status of the target vehicle; the gateway 110 is also used to generate a charging instruction based on the remaining power of the battery 20 and a preset charging strategy, and send the charging instruction to the vehicle controller 120.

[0095] One end of the vehicle controller 120 is connected to one end of the vehicle large battery 200, the other end of the vehicle controller 120 is connected to one end of the gateway 110, the other end of the gateway 110 is connected to one end of the battery 20, the other end of the vehicle large battery 200 is connected to one end of the current converter 300, and the other end of the current converter 300 is connected to the other end of the battery 20.

[0096] The vehicle controller 120 is used to send a charging instruction to the vehicle large battery 200 to control the starting of the vehicle large battery 200.

[0097] In the above implementation, the gateway generates a charging command based on the remaining battery charge and the target vehicle's status. The vehicle controller then transmits this command to the vehicle's main battery, activating it. The gateway and vehicle controller collaborate to issue the charging command and activate the main battery, completing battery charging control. Throughout the entire process, the gateway and vehicle controller each perform a portion of the action, reducing their respective processing tasks and improving efficiency.

[0098] In a possible implementation, the automobile battery charging system 10 further includes: a battery sensor 400 .

[0099] The battery sensor 400 is used to obtain the power data of the battery 20 and convert the power data into the remaining capacity of the battery 20 .

[0100] The battery sensor 400 is provided on the battery 20 to obtain power data of the battery 20. The power data may include current data, voltage data and other data.

[0101] Optionally, the battery sensor 400 may be a TDK TMR sensor, a Hall sensor, or the like.

[0102] In the above implementation process, the battery power data is obtained by setting up a battery sensor. Since the battery sensor has a simple structure and low cost, it can realize real-time monitoring of the battery power while reducing the cost of the battery.

[0103] The automobile battery charging system in this embodiment can be used to execute each step in each method provided in the embodiments of this application.

[0104] Based on the same application concept, the embodiments of the present application also provide an automobile battery charging device corresponding to the automobile battery charging method. Since the principle of solving the problem by the device in the embodiments of the present application is similar to that of the aforementioned automobile battery charging method embodiment, the implementation of the device in this embodiment can refer to the description in the embodiment of the aforementioned method, and the repeated parts will not be repeated.

[0105] See also Figure 4 , is a functional module diagram of the vehicle battery charging device provided in an embodiment of the present application. The various modules in the vehicle battery charging device in this embodiment are used to execute the various steps in the above method embodiment. The vehicle battery charging device includes an acquisition module 301, an instruction generation module 302, and a startup module 303; wherein,

[0106] The acquisition module 301 is used for the remaining battery capacity of the target vehicle and the vehicle status of the target vehicle.

[0107] The instruction generation module 302 is used to generate a charging instruction according to the remaining capacity of the battery, the vehicle status of the target vehicle and a preset charging strategy.

[0108] The starting module 303 is used to control the starting of the vehicle's large battery through the charging instruction, and control the vehicle's large battery to charge the storage battery.

[0109] In one possible implementation, the instruction generation module 302 is further configured to: compare the remaining battery capacity with a remaining capacity threshold; wherein the remaining capacity threshold is the minimum remaining capacity value allowed by the battery; and if it is determined that the remaining battery capacity is lower than the remaining capacity threshold, generate a charging instruction based on the vehicle status of the target vehicle and a preset charging strategy.

[0110] In one possible embodiment, the vehicle battery charging device further includes a control module configured to: obtain the charging current output by the vehicle's large battery to the battery; determine whether the charging current is less than a set current value; if the charging current is less than the set current value, determine whether a duration during which the charging current is less than the set current value exceeds a low current duration threshold; and control the vehicle's large battery to exit charging if a duration during which the charging current is less than the set current value exceeds the low current duration threshold.

[0111] In addition, an embodiment of the present application also provides a computer-readable storage medium, which stores a computer program. When the computer program is executed by a processor, the steps of the automobile battery charging method described in the above method embodiment are executed.

[0112] The computer program product of the vehicle battery charging method provided in the embodiments of the present application includes a computer-readable storage medium storing program code. The instructions included in the program code can be used to execute the steps of the vehicle battery charging method described in the above method embodiments. For details, please refer to the above method embodiments and will not be repeated here.

[0113] In the several embodiments provided in this application, it should be understood that the disclosed devices and methods can also be implemented in other ways. The device embodiments described above are merely illustrative. For example, the flowcharts and block diagrams in the accompanying drawings show the possible architectures, functions and operations of the devices, methods and computer program products according to the multiple embodiments of the present application. In this regard, each box in the flowchart or block diagram can represent a module, a program segment or a part of the code, and the module, program segment or a part of the code contains one or more executable instructions for implementing the specified logical functions. It should also be noted that in some alternative implementations, the functions marked in the box can also occur in an order different from that marked in the accompanying drawings. For example, two consecutive boxes can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each box in the block diagram and / or flowchart, and the combination of boxes in the block diagram and / or flowchart, can be implemented using a dedicated hardware-based system that performs the specified function or action, or can be implemented using a combination of dedicated hardware and computer instructions.

[0114] In addition, the functional modules in each embodiment of the present application can be integrated together to form an independent part, or each module can exist independently, or two or more modules can be integrated to form an independent part.

[0115] If the functions are implemented in the form of software function modules and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art or the part of the technical solution, can be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk. It should be noted that, in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising..." does not preclude the presence of additional identical elements in the process, method, article, or apparatus that includes the element.

[0116] The foregoing description is merely a preferred embodiment of the present application and is not intended to limit the present application. Various modifications and variations are possible for those skilled in the art. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included within the scope of protection of the present application. It should be noted that similar reference numerals and letters represent similar items in the following figures. Therefore, once an item is defined in one figure, it does not need to be further defined or explained in subsequent figures.

[0117] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. A method for replenishing power of a car battery, characterized in that: Applied to a control device, the method includes: Obtaining the remaining battery capacity and vehicle status of the target vehicle; generating a charging instruction according to the remaining capacity of the battery, the vehicle status of the target vehicle, and a preset charging strategy; The vehicle's large battery is started by controlling the power replenishment instruction, and the vehicle's large battery is controlled to replenish power to the storage battery; Wherein, the preset charging strategy includes a charging strategy that limits the number of discharges and / or the discharge duration of the vehicle's large battery within the charging cycle of the battery; After starting the vehicle's large battery through the power replenishment instruction and controlling the vehicle's large battery to replenish power to the storage battery, the method further includes: Obtaining the charging current output by the vehicle's large battery to the storage battery; Determine whether the charging current is less than a current setting value; wherein the current setting value is the charging current when the battery power utilization rate is lower than a preset ratio; If the supplementary power current is less than the current setting value, determining whether the duration of the supplementary power current being less than the current setting value exceeds a low current duration threshold; wherein, if the supplementary power current is less than the current setting value, the supplementary power state is invalid supplementary power; If the duration that the charging current is less than the current setting value exceeds the low current duration threshold, the vehicle large battery is controlled to exit charging.

2. The method according to claim 1, characterized in that The generating of the charging instruction according to the remaining capacity of the battery, the vehicle state of the target vehicle and the preset charging strategy includes: Comparing the remaining capacity of the battery with a remaining capacity threshold; wherein the remaining capacity threshold is the minimum remaining capacity value allowed by the battery; If it is determined that the remaining capacity of the battery is lower than the remaining capacity threshold, a charging instruction is generated according to the vehicle state of the target vehicle and the preset charging strategy.

3. The method according to claim 2, characterized in that in, The vehicle state of the target vehicle includes the vehicle state of the target vehicle in a cycle of starting and sleeping; The recharging instruction includes limiting the number of times the battery of the target vehicle is recharged to one time within a cycle of starting and sleeping.

4. The method according to claim 2, characterized in that in, The vehicle status of the target vehicle includes a dormancy time of the target vehicle exceeding a vehicle idle time threshold; The charging instruction includes: limiting the number of charging times of the battery within a preset time period to no more than 2 times, and limiting the charging time of each time to the preset charging time; Among them, the preset duration includes 24 hours, and the preset charging duration includes 2 hours.

5. An automobile battery charging system, characterized in that: include: Control equipment, large vehicle batteries, current converters; Wherein, the control device is used to obtain the remaining battery capacity of the target vehicle and the vehicle status of the target vehicle; The control device is further configured to generate a charging instruction according to the remaining capacity of the battery and a preset charging strategy, and send the charging instruction to the vehicle large battery to control the activation of the vehicle large battery; The vehicle large battery is used to transmit high voltage electricity to the current converter according to the power replenishment instruction; The current converter is used to convert the high voltage electricity into low voltage electricity and transmit it to the battery; Wherein, the preset charging strategy includes a charging strategy that limits the number of discharges and the discharge duration of the vehicle's large battery within the charging cycle of the battery; The control device is also used to obtain the charging current output by the vehicle's large battery to the storage battery; determine whether the charging current is less than the current setting value; wherein, the current setting value is the charging current when the battery power utilization rate is lower than the preset proportion; if the charging current is less than the current setting value, determine whether the duration of the charging current being less than the current setting value exceeds the small current duration threshold; wherein, when the charging current is less than the current setting value, the charging state is invalid charging; if the duration of the charging current being less than the current setting value exceeds the small current duration threshold, the vehicle's large battery is controlled to exit charging.

6. The system according to claim 5, characterized in that The control device includes a gateway or a vehicle controller; The gateway or vehicle controller is used to obtain the remaining battery capacity of the target vehicle and the vehicle status of the target vehicle; The gateway or vehicle controller is further configured to generate a charging instruction based on the remaining capacity of the battery and a preset charging strategy, and send the charging instruction to the vehicle large battery to control the start-up of the vehicle large battery.

7. The system according to claim 5, characterized in that The control device includes a gateway and a vehicle controller; The gateway obtains the remaining battery capacity of the target vehicle and the vehicle status of the target vehicle; The gateway is further configured to generate a charging instruction according to the remaining power of the battery and a preset charging strategy, and send the charging instruction to the vehicle controller; The vehicle controller is used to send the charging instruction to the vehicle large battery to control the start-up of the vehicle large battery.

8. The system according to any one of claims 5 to 7, characterized in that: The automobile battery charging system further includes: a battery sensor; The battery sensor is used to obtain the power data of the battery and convert the power data into the remaining capacity of the battery.

9. A computer-readable storage medium, characterized in that The computer-readable storage medium stores a computer program, which, when executed by a processor, executes the steps of the method according to any one of claims 1 to 4.

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