Automobile storage battery charging method, device, storage medium and apparatus

Abstract

The application discloses a kind of automobile battery power compensation method, equipment, storage medium and device, the vehicle state of target vehicle and the current voltage value of battery are obtained in the application, the power compensation strategy of the battery is determined according to the vehicle state, and the battery is compensated according to the power compensation strategy and the current voltage value.The power compensation strategy is determined by the vehicle state in the application, and the battery is compensated in combination with the current voltage value of battery.Compared with prior art, since the battery power is too low, the user cannot start the vehicle, and the battery is manually compensated by the user, the application realizes automatic power compensation for battery, ensures sufficient battery power, avoids the battery voltage being too low due to long time of vehicle hibernation, and causes the vehicle to be unable to start.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automobiles, in particular to a battery charging method, device, storage medium and apparatus for an automobile. BACKGROUND

[0002] At present, the battery charging strategy of a pure electric vehicle is basically that the DC / DC is started to charge the battery when the vehicle is in the ON gear or in a driving state. If the vehicle is in the OFF gear for a long time and the vehicle is not in a sleep state, the battery power will be continuously consumed and cannot be supplemented, so that the power is too low to start the vehicle next time, and the vehicle needs to be re-started after the battery is charged, which is very inconvenient for the user.

[0003] The above content is only used to assist in understanding the technical solutions of the present application and does not represent the acknowledgement of the above content as prior art. SUMMARY

[0004] The main purpose of the present application is to provide a battery charging method, device, storage medium and apparatus for an automobile, which aims to solve the technical problem that the vehicle cannot be successfully started due to the low voltage of the battery caused by the long time of not sleeping in the prior art.

[0005] To achieve the above purpose, the present application provides a battery charging method for an automobile, which comprises the following steps:

[0006] obtaining the vehicle state of the target vehicle and the current voltage value of the battery;

[0007] determining the battery charging strategy of the battery according to the vehicle state;

[0008] charging the battery according to the battery charging strategy and the current voltage value

[0009] Optionally, the step of determining the battery charging strategy of the battery according to the vehicle state comprises:

[0010] when the vehicle state is a power-off state, obtaining a sleep signal of a DC converter;

[0011] awakening a preset auxiliary circuit according to the sleep signal, and detecting the current voltage value of the battery through the preset auxiliary circuit;

[0012] determining whether to awaken the DC converter through the preset auxiliary circuit according to the current voltage value and a first preset voltage value, and determining the battery charging strategy according to the determination result.

[0013] Optionally, the step of charging the battery according to the battery charging strategy and the current voltage value comprises:

[0014] determining the power compensation strategy of the storage battery according to the vehicle state, wherein when the current voltage value is not greater than the first preset voltage value, the power compensation strategy is determined as waking up the direct current converter through the preset auxiliary circuit to wake up the VCU;

[0015] compensating the storage battery through the VCU controlling the direct current converter until the voltage value of the compensated storage battery is greater than the preset voltage value.

[0016] Optionally, the step of determining the power compensation strategy of the storage battery according to the vehicle state comprises:

[0017] detecting a current voltage value of the storage battery when the vehicle state is the power-on state;

[0018] judging whether to compensate the storage battery according to the current voltage value and a second preset voltage value, and determining the power compensation strategy of the storage battery according to a judgment result.

[0019] Optionally, the step of compensating the storage battery according to the power compensation strategy and the current voltage value comprises:

[0020] determining the power compensation strategy as generating an enable signal to make the direct current converter and the battery management system work when the current voltage value is not greater than the second preset voltage value;

[0021] controlling the direct current converter and the battery management system to compensate the storage battery according to the enable signal until the voltage value of the compensated storage battery is greater than the preset voltage value.

[0022] Optionally, the step of determining the power compensation strategy of the storage battery according to the vehicle state comprises:

[0023] determining that the vehicle state is a charging high-voltage state when a charging plug-in gun signal is detected;

[0024] determining the power compensation strategy of the storage battery according to the charging high-voltage state.

[0025] Optionally, the step of determining the power compensation strategy of the storage battery according to the vehicle state comprises:

[0026] determining that the vehicle state is a discharging high-voltage state when a vehicle discharging signal is detected;

[0027] determining the power compensation strategy of the storage battery according to the discharging high-voltage state.

[0028] In addition, to achieve the above object, the application further provides an automobile storage battery charging device, which comprises a memory, a processor and an automobile storage battery charging program stored in the memory and executable on the processor, and the automobile storage battery charging program is configured to implement the steps of the automobile storage battery charging method as described above.

[0029] In addition, to achieve the above object, the application further provides a storage medium, which stores an automobile storage battery charging program, and the automobile storage battery charging program implements the steps of the automobile storage battery charging method as described above when executed by a processor.

[0030] In addition, to achieve the above object, the application further provides an automobile storage battery charging device, which comprises:

[0031] an information acquisition module, configured to acquire a vehicle state of a target vehicle and a current voltage value of a storage battery;

[0032] a strategy determination module, configured to determine a charging strategy of the storage battery according to the vehicle state;

[0033] a charging control module, configured to charge the storage battery according to the charging strategy and the current voltage value.

[0034] The application acquires a vehicle state of a target vehicle and a current voltage value of a storage battery, determines a charging strategy of the storage battery according to the vehicle state, and charges the storage battery according to the charging strategy and the current voltage value. Compared with the prior art in which the user manually charges the storage battery due to the low battery level, the application automatically charges the storage battery, ensures the sufficient battery level, and avoids the low battery voltage caused by the long time of non-sleeping of the vehicle, thereby preventing the vehicle from being unable to start. BRIEF DESCRIPTION OF DRAWINGS

[0035] Figure 1 is a structural schematic diagram of the automobile storage battery charging device of the hardware running environment involved in the embodiment scheme of the application;

[0036] Figure 2 is a flowchart of the first embodiment of the automobile storage battery charging method of the application;

[0037] Figure 3 is a charging strategy schematic diagram when the vehicle is in a power-off state in the first embodiment of the automobile storage battery charging method of the application;

[0038] Figure 4The flowchart of the second embodiment of the automobile storage battery power compensation method of the present application;

[0039] Figure 5 The power compensation strategy schematic diagram of the vehicle in the power-on state of the second embodiment of the automobile storage battery power compensation method of the present application;

[0040] Figure 6 The power compensation strategy schematic diagram in the charging process of the third embodiment of the automobile storage battery power compensation method of the present application;

[0041] Figure 7 The power compensation strategy schematic diagram in the discharging process of the third embodiment of the automobile storage battery power compensation method of the present application;

[0042] Figure 8 The structural block diagram of the first embodiment of the automobile storage battery power compensation device of the present application.

[0043] The implementation, functional features and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0044] It should be understood that the specific embodiments described herein are merely intended to explain the present application and not to limit the present application.

[0045] Reference Figure 1 , Figure 1 The automobile storage battery power compensation device structure schematic diagram of the hardware running environment involved in the embodiment scheme of the present application.

[0046] As Figure 1 shown, the automobile storage battery power compensation device can include a processor 1001, such as a central processing unit (CPU), a communication bus 1002, a user interface 1003, a network interface 1004, and a memory 1005. The communication bus 1002 is used to realize the connection and communication between these components. The user interface 1003 can include a display screen (Display), and the optional user interface 1003 can also include a standard wired interface, a wireless interface, and the wired interface of the user interface 1003 can be a USB interface in the present application. The network interface 1004 can optionally include a standard wired interface and a wireless interface (such as a wireless fidelity (Wireless-Fidelity, Wi-Fi) interface). The memory 1005 can be a high-speed random access memory (RAM), and can also be a stable memory (Non-volatile Memory, NVM), such as a disk memory. The memory 1005 can also be an independent storage device from the aforementioned processor 1001.

[0047] Those skilled in the art can understand that Figure 1 The structure shown in the figure does not constitute a limitation on the automobile storage battery charging device, and can include more or fewer components than the figure, or combine certain components, or different component arrangements.

[0048] As Figure 1 The memory 1005, which is identified as a computer storage medium, can include an operating system, a network communication module, a user interface module, and an automobile storage battery charging program.

[0049] In Figure 1 In the automobile storage battery charging device shown in the figure, the network interface 1004 is mainly used to connect to a background server and communicate data with the background server; the user interface 1003 is mainly used to connect to a user device; the automobile storage battery charging device calls the automobile storage battery charging program stored in the memory 1005 through the processor 1001, and executes the automobile storage battery charging method provided by the embodiment of the application.

[0050] Based on the above hardware structure, embodiments of the automobile storage battery charging method of the application are proposed.

[0051] Referring to Figure 2 , Figure 2 The flowchart of the first embodiment of the automobile storage battery charging method of the application is proposed.

[0052] In this embodiment, the automobile storage battery charging method comprises the following steps:

[0053] Step S10: Obtain the vehicle state of the target vehicle and the current voltage value of the storage battery.

[0054] It should be noted that the execution subject of the embodiment can be a device with a storage battery charging function, which can be connected to a battery management system (BMS), a vehicle controller (VCU), and a direct current exchanger (DC / DC) in a computing device, such as a vehicle computer, a notebook, etc. The embodiment does not limit this, and the automobile storage battery charging method of the application is described by taking the storage battery charging control device as an example in this embodiment and the following embodiments.

[0055] It should be understood that the target vehicle can be a new energy electric vehicle, and the vehicle state refers to the state of the vehicle being powered on, powered off, charged high voltage (slow charging high voltage and fast charging high voltage), and driving high voltage. Different charging control strategies are used for different states in this embodiment. Therefore, different charging control strategies are used to realize charging of the vehicle in different scenarios in this embodiment.

[0056] It should be understood that the current voltage value of the battery can be a voltage value monitored by the DC / DC and the preset low-power monitoring circuit (preset auxiliary circuit). The preset low-power monitoring circuit can be a circuit preset for monitoring the battery voltage when the DC / DC is not working.

[0057] Step S20: determining the power compensation strategy of the battery according to the vehicle state.

[0058] It should be noted that the power compensation strategy of the battery can be determined according to the state of the vehicle being powered on, powered off, charged high voltage (slow charging high voltage and fast charging high voltage), discharged high voltage, and driving high voltage. That is, the power compensation strategy of the battery is different when the vehicle is in different states.

[0059] Further, in order to compensate the battery when the vehicle state is powered off, the step S20 includes: when the vehicle state is powered off, obtaining a sleep signal of the DC / DC converter; awakening the preset auxiliary circuit according to the sleep signal, and detecting the current voltage value of the battery through the preset auxiliary circuit; determining whether to wake up the DC / DC converter through the preset auxiliary circuit according to the current voltage value and the first preset voltage value, and determining the power compensation strategy of the battery according to the determination result.

[0060] It should be noted that the preset auxiliary circuit refers to a circuit preset for assisting voltage monitoring when the DC / DC converter sends a sleep signal. The circuit can be an additional low-power monitoring circuit added to the DC / DC. That is, when the vehicle state is powered off, the DC / DC detects that the sleep condition is met, sends a sleep signal, and starts a low-power voltage monitoring circuit to detect the voltage value of the battery and obtain the current voltage value of the battery.

[0061] It can be understood that the first preset voltage value can be a minimum voltage value preset for determining whether the current voltage value of the battery meets the power compensation condition when the vehicle is powered off. For example, when the current voltage value of the battery is greater than the first preset voltage value, the battery does not need to be compensated, and when the current voltage value of the battery is not greater than the first preset voltage value, the battery needs to be compensated.

[0062] It should be understood that when the vehicle is in the power-off state, the DC converter is not working, and therefore the current voltage value of the storage battery is monitored through the preset auxiliary circuit, and it is judged whether the DC converter is awakened through the preset auxiliary circuit according to the current voltage value and the first preset voltage value, and the storage battery is recharged according to the judgment result. The judgment result includes two results that the current voltage value is not greater than the first preset voltage value and the current voltage value is greater than the first preset voltage value, wherein when the current voltage value is not greater than the first preset voltage value, it is determined that the recharging strategy is to awaken the DC converter through the preset auxiliary circuit, so as to awaken the VCU for recharging control.

[0063] In a specific implementation, in the prior art, the DC / DC can only start to recharge the vehicle storage battery when the vehicle is in the awakened state. When the vehicle is not used for a long time, the voltage of the vehicle storage battery will gradually decrease to a very low value, and the vehicle cannot be started next time. In order to meet the requirement of recharging the storage battery when the vehicle is not in the awakened state, a DC / DC low-power mode is added to solve the above problem. When the vehicle is in the OFF gear, the storage battery voltage can be detected, the VCU is awakened, and the DC / DC is started to recharge the storage battery. For the DC / DC managed by the network, the auxiliary circuit can awaken the DC / DC, thereby awakening the VCU. If the VCU is awakened through a hard-wire signal, the VCU can be directly awakened, and the recharging strategy can be started.

[0064] Further, in order to describe the recharging control process when the vehicle is in the power-off state, reference can be made to Figure 3 The recharging strategy of the vehicle in the power-off state is shown in the figure. The step of recharging the storage battery according to the recharging strategy and the current voltage value includes: when the current voltage value is not greater than the first preset voltage value, determining that the recharging strategy is to awaken the DC converter through the preset auxiliary circuit, so as to awaken the VCU; and recharging the storage battery through the VCU control DC converter, until the voltage value of the recharged storage battery is greater than the preset voltage value.

[0065] It should be noted that when the vehicle is in the power-off state (for example, the vehicle is in the OFF gear), an additional low-power monitoring circuit of the DC / DC is added. When the DC / DC detects that the sleep condition is met, a sleep signal is sent, and a low-power voltage monitoring circuit (preset auxiliary circuit) is started to monitor the storage battery voltage. When the low-voltage storage battery voltage is lower than a certain value, a wake-up signal is sent to awaken the VCU, thereby awakening the whole vehicle, and starting the DC / DC to recharge the low-voltage storage battery, until the voltage value of the recharged storage battery is greater than the preset voltage value, and the recharging of the whole vehicle is ended. The low-power monitoring circuit of the DC / DC monitors the voltage value of the storage battery in real time or at a fixed time.

[0066] In a specific implementation, reference can be made to Figure 3It is explained that when the vehicle is in OFF gear, when the DC / DC detects that the sleep condition is met, the sleep signal is sent out, and the preset auxiliary circuit is started to monitor the voltage value of the storage battery. When the voltage value is not greater than the first preset voltage value (for example, the first preset voltage value is set to 10V, or other set value), the DC / DC is awakened through the preset auxiliary circuit, and then the VCU is awakened (or the VCU is directly awakened), the VCU controls the DC / DC to charge the storage battery, and judges whether the charging is ended according to the voltage value of the storage battery after charging and the preset voltage value. When the voltage value of the storage battery after charging is greater than the preset voltage value (for example, the preset voltage value is set to 13V, or other set value), the charging is stopped. Therefore, the storage battery has sufficient power, and the voltage of the storage battery is prevented from being too low due to long time of non-sleep of the vehicle, so that the vehicle cannot be started.

[0067] Step S30: charging the storage battery according to the charging strategy and the current voltage value.

[0068] It should be noted that the storage battery is charged according to the charging strategy corresponding to the vehicle state and the current voltage value of the storage battery, so as to ensure that the storage battery has sufficient power.

[0069] In this embodiment, the vehicle state and the current voltage value of the storage battery of the target vehicle are obtained, the charging strategy of the storage battery is determined according to the vehicle state, and the storage battery is charged according to the charging strategy and the current voltage value. Compared with the prior art, in which the user manually charges the storage battery due to insufficient power of the storage battery, the embodiment automatically charges the storage battery, ensures that the storage battery has sufficient power, and prevents the voltage of the storage battery from being too low due to long time of non-sleep of the vehicle, so that the vehicle cannot be started.

[0070] Reference Figure 4 , Figure 4 The second embodiment of the automobile storage battery charging method of the present application is shown in the flowchart, based on the first embodiment shown in the above Figure 2 The second embodiment of the automobile storage battery charging method of the present application is shown in the flowchart, based on the first embodiment shown in the above

[0071] In this embodiment, the step S20 comprises:

[0072] Step S201: detecting the current voltage value of the storage battery when the vehicle state is in the power-on state (for example, the vehicle is in ON gear).

[0073] It should be noted that when the vehicle state is in the power-on state (for example, the vehicle is in ON gear), the current voltage value of the storage battery is detected by the VCU or the BMS.

[0074] Step S202: judging whether to charge the battery according to the current voltage value and the second preset voltage value, and determining a charging strategy of the battery according to a judgment result.

[0075] It should be noted that the second preset voltage value can be a minimum voltage value for judging whether the current voltage value of the battery reaches a charging condition when the vehicle is in the powered-on state, for example, when the vehicle is in the powered-on state, if the current voltage value of the battery is greater than the second preset voltage value, the battery does not need to be charged, and if the current voltage value of the battery is not greater than the second preset voltage value, the battery needs to be charged.

[0076] It can be understood that when the vehicle state is the powered-on state, the current voltage value of the battery is detected through the VCU or the BMS, and whether to generate an enable signal to make the DC converter and the battery management system work to charge the battery is judged according to the current voltage value and the second preset voltage value, and the battery is charged according to a judgment result. The judgment result includes two results that the current voltage value is not greater than the second preset voltage value and the current voltage value is greater than the second preset voltage value, wherein when the current voltage value is not greater than the second preset voltage value, it is determined that the charging strategy is to generate the enable signal to make the DC converter and the battery management system work to charge the battery.

[0077] In the embodiment, the step S30 includes:

[0078] Step S301: when the current voltage value is not greater than the second preset voltage value, it is determined that the charging strategy is to generate the enable signal to make the DC converter and the battery management system work.

[0079] Step S302: controlling the DC converter and the battery management system to charge the battery according to the enable signal until the voltage value of the battery after charging is greater than the preset voltage value.

[0080] In a specific implementation, in order to illustrate the charging control process when the vehicle is in the powered-on state, reference can be made to Figure 5The schematic diagram of the power compensation strategy when the vehicle is in the power-on state. When the vehicle is in the power-on state (for example, the vehicle is in the ON gear), the battery voltage is detected by the VCU or the BMS. When the voltage is not greater than the second preset voltage value (for example, the second preset voltage value is set to 10V, or other set value), the VCU sends an enable signal to control the BMS and the DC / DC to work as the battery power compensation, and determines whether to end the power compensation according to the battery voltage value after the power compensation and the preset voltage value. When the battery voltage value after the power compensation is greater than the preset voltage value (for example, the preset voltage value is set to 13V, or other set value), the power compensation is stopped. Or after the set power compensation time is met, the power compensation is stopped, and the battery voltage value is continuously monitored, so as to ensure that the battery power is sufficient, and avoid that the vehicle cannot be started due to the low battery voltage caused by the long time of not hibernating.

[0081] In the embodiment, the vehicle state and the current voltage value of the battery of the target vehicle are obtained. When the vehicle state is the power-on state, the current voltage value of the battery is detected. Whether the battery is compensated is determined according to the current voltage value and the second preset voltage value. The power compensation strategy of the battery is determined according to the determination result. When the current voltage value is not greater than the second preset voltage value, it is determined that the power compensation strategy is to generate an enable signal to make the DC / DC converter and the battery management system work. The DC / DC converter and the battery management system compensate the battery according to the enable signal, until the battery voltage value after the power compensation is greater than the preset voltage value. In the embodiment, the power compensation strategy is determined according to the vehicle state, and the battery is compensated according to the current voltage value of the battery. Compared with the prior art, the user cannot start the vehicle due to the low battery power. The battery is automatically compensated in the embodiment, the battery power is sufficient, and the vehicle cannot be started due to the low battery voltage caused by the long time of not hibernating.

[0082] Based on the first embodiment shown in the above Figure 2 The third embodiment of the battery power compensation method of the vehicle of the present application is provided.

[0083] In the embodiment, in order to explain the power compensation strategy when the vehicle is in the charging high voltage (slow charging high voltage and fast charging high voltage) and the driving high voltage, the step of determining the power compensation strategy of the battery according to the vehicle state comprises: determining that the vehicle state is the charging high voltage state when the charging plug-in gun signal is detected; and determining the power compensation strategy of the battery according to the charging high voltage state.

[0084] It should be noted that the charging plug-in gun signal can be a signal generated when the charging plug-in gun configured by the target vehicle is inserted into the charging pile. The charging high voltage state includes the slow charging high voltage state and the fast charging high voltage state.

[0085] In a specific implementation, reference is made to Figure 6 The charging process is illustrated in the schematic diagram of the power supply strategy. The AC slow charging and DC fast charging process is the same as the power supply strategy of the DC / DC for the storage battery. After the vehicle detects the plug-in signal, it will be woken up, enter the charging high voltage, and the VCU will send an enable signal to control the DC / DC to work to charge the storage battery. When the charging is completed or interrupted, the vehicle will disconnect the high voltage, and the DC / DC will stop working. Then the vehicle will enter the sleep state. The sleep state strategy is the same as the OFF state of the vehicle. When the vehicle is in the driving high voltage state, the VCU continuously sends an enable signal to control the DC / DC to charge the storage battery, so as to meet the power demand of the low voltage electrical appliances of the vehicle.

[0086] Further, in order to illustrate the power supply strategy of the vehicle in the discharging high voltage state, the step of determining the power supply strategy of the storage battery according to the vehicle state further comprises: determining that the vehicle state is in the discharging high voltage state when the vehicle discharging signal is detected; and determining the power supply strategy of the storage battery according to the discharging high voltage state.

[0087] It should be noted that the vehicle discharging signal can be a discharging signal generated by the target vehicle when the electrical equipment is working, for example: a 220V discharging socket in the vehicle, a 220V discharging gun outside the vehicle, and a discharging signal generated by the target vehicle in the case of vehicle-to-vehicle and vehicle-to-grid discharging.

[0088] In a specific implementation, reference is made to Figure 7 The discharging process is illustrated in the schematic diagram of the power supply strategy. When the vehicle has a discharging function, such as a 220V discharging socket in the vehicle, a 220V discharging gun outside the vehicle, and a discharging strategy in the case of vehicle-to-vehicle and vehicle-to-grid discharging, the strategy is the same as the above charging process. When the discharging gun is plugged in or the 220V plug is plugged in, the vehicle will be woken up. After self-checking is completed and it is determined that the discharging requirements are met, the vehicle will enter the discharging high voltage state to discharge externally. At this time, there will be a high voltage output, and the VCU will continuously send a DC / DC enable signal to control the DC / DC to work to charge the storage battery. When the discharging is completed or interrupted, the vehicle will disconnect the high voltage, and the DC / DC will stop working. Then, if there is no other operation, the vehicle will enter the sleep state, and the power supply strategy after that is the same as the OFF state strategy of the vehicle.

[0089] The present embodiment identifies the charging high voltage and discharging high voltage states of the vehicle, and determines the corresponding power supply strategy. Compared with the prior art, the power supply form is single, which cannot control the power supply of the storage battery in multiple scenarios. The present embodiment realizes automatic power supply of the storage battery in multiple scenarios, ensures sufficient storage battery power, and avoids the situation that the vehicle cannot be started due to low storage battery voltage caused by long time sleep of the vehicle.

[0090] In addition, to achieve the above object, the application further provides an automobile storage battery charging device, which comprises a memory, a processor and an automobile storage battery charging program stored in the memory and executable on the processor, and the automobile storage battery charging program is configured to implement the steps of the automobile storage battery charging method as described above.

[0091] In addition, to achieve the above object, the application further provides a storage medium, which stores an automobile storage battery charging program, and the automobile storage battery charging program implements the steps of the automobile storage battery charging method as described above when executed by a processor.

[0092] Reference Figure 8 , Figure 8 The structure block diagram of the first embodiment of the automobile storage battery charging device of the application is shown in the figure.

[0093] As Figure 8 shown, the automobile storage battery charging device provided by the embodiment of the application comprises:

[0094] An information acquisition module 10 is configured to acquire the vehicle state of a target vehicle and the current voltage value of a storage battery;

[0095] A strategy determination module 20 is configured to determine the charging strategy of the storage battery according to the vehicle state;

[0096] A charging control module 30 is configured to charge the storage battery according to the charging strategy and the current voltage value.

[0097] The embodiment acquires the vehicle state of a target vehicle and the current voltage value of a storage battery, determines the charging strategy of the storage battery according to the vehicle state, and charges the storage battery according to the charging strategy and the current voltage value. Compared with the prior art in which the user manually charges the storage battery due to the low battery level of the storage battery, the embodiment automatically charges the storage battery, ensures the sufficient battery level of the storage battery, and avoids the low voltage of the storage battery due to the long time of non-sleeping of the vehicle, which leads to the failure of starting the vehicle.

[0098] Further, the strategy determination module 20 is further configured to acquire the sleep signal of a direct current converter when the vehicle state is the power-off state, wake up a preset auxiliary circuit according to the sleep signal, detect the current voltage value of the storage battery through the preset auxiliary circuit, determine whether to wake up the direct current converter through the preset auxiliary circuit according to the current voltage value and a first preset voltage value, and determine the charging strategy of the storage battery according to the determination result.

[0099] Further, the power compensation control module 30 is further configured to determine the power compensation strategy as waking up the DC converter through the preset auxiliary circuit to wake up the VCU when the current voltage value is not greater than the first preset voltage value; and compensating the battery through the VCU to control the DC converter to compensate the battery until the voltage value of the compensated battery is greater than the preset voltage value.

[0100] Further, the strategy determination module 20 is further configured to detect the current voltage value of the battery when the vehicle state is the power-on state; determine whether to compensate the battery according to the current voltage value and the second preset voltage value; and determine the power compensation strategy of the battery according to the determination result.

[0101] Further, the power compensation control module 30 is further configured to determine the power compensation strategy as generating an enable signal to make the DC converter and the battery management system work when the current voltage value is not greater than the second preset voltage value; and control the DC converter and the battery management system to compensate the battery according to the enable signal until the voltage value of the compensated battery is greater than the preset voltage value.

[0102] Further, the strategy determination module 20 is further configured to determine the vehicle state as the charging high-voltage state when the charging plug-in signal is detected; and determine the power compensation strategy of the battery according to the charging high-voltage state.

[0103] Further, the strategy determination module 20 is further configured to determine the vehicle state as the discharging high-voltage state when the vehicle discharging signal is detected; and determine the power compensation strategy of the battery according to the discharging high-voltage state.

[0104] It should be understood that the above is only an example, and does not constitute any limitation on the technical solutions of the present application. In specific applications, those skilled in the art can set it according to the needs, and the present application does not limit it.

[0105] It should be noted that the above-described workflow is only illustrative and does not limit the scope of protection of the present application. In actual application, those skilled in the art can select part or all of them to achieve the purpose of the embodiment scheme according to actual needs, which is not limited here.

[0106] In addition, technical details not described in detail in the present embodiment can be referred to the automobile battery power compensation method provided by any embodiment of the present application, which will not be repeated here.

[0107] It should be noted that, in the present document, the terms "comprising", "containing" or any other similar term are intended to encompass non-exclusive inclusions, such that a process, a method, an article or a system that comprises a list of elements does not only include those elements, but can also include other elements not explicitly listed or inherent to such a process, method, article or system. Without further limitations, an element defined by the phrase "comprising a" does not exclude the presence of additional identical elements in the process, method, article or system that includes such an element.

[0108] The above-mentioned embodiment numbers of the present application are only for description, and do not represent the advantages or disadvantages of the embodiments. In the unit claims in which several devices are listed, several of these devices can be embodied by the same hardware item. The use of the words first, second, and third, etc. does not indicate any order, and these words can be interpreted as names.

[0109] From the above description of the embodiments, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be realized by means of software and the necessary general hardware platform, of course, they can also be realized by hardware, but in many cases the former is a better embodiment. Based on such understanding, the technical solutions of the present application can be embodied in the form of a software product, which is stored in a storage medium (such as a read-only memory image (ROM) / random access memory (RAM), a magnetic disk, an optical disk), and includes a number of instructions for making a terminal device (which can be a mobile phone, a computer, a server, or a network device, etc.) execute the methods described in the various embodiments of the present application.

[0110] The above is only the preferred embodiment of the present application, and does not limit the patent scope of the present application, and any equivalent structure or equivalent process transformation, or direct or indirect application in other related technical fields, is also included in the patent protection scope of the present application.

Claims

1. A method of recharging an automotive storage battery, characterized by, The method for charging a car battery includes the following steps: Obtain the vehicle status of the target vehicle and the current voltage value of the battery; The battery charging strategy is determined based on the vehicle status; The battery is recharged according to the recharge strategy and the current voltage value; The step of determining the battery charging strategy based on the vehicle status includes: When the vehicle is in a power-off state, the sleep signal of the DC-DC converter is acquired; The preset auxiliary circuit is woken up according to the hibernation signal, and the current voltage value of the battery is detected by the preset auxiliary circuit. The preset auxiliary circuit is a low-power monitoring circuit that is pre-set to assist in voltage monitoring when the DC converter issues a hibernation signal. Based on the current voltage value and the first preset voltage value, it is determined whether to wake up the DC converter through the preset auxiliary circuit. Based on the determination result, the battery charging strategy is determined. The first preset voltage value is the minimum voltage value preset when the vehicle is in a power-off state, which is used to determine whether the current voltage value of the battery has reached the charging condition. The step of replenishing the battery according to the replenishment strategy and the current voltage value includes: When the current voltage value is not greater than the first preset voltage value, if the DC-DC converter supports network management, the power replenishment strategy is determined to be to wake up the DC-DC converter through the preset auxiliary circuit so that the woken DC-DC converter wakes up the VCU. If the DC-DC converter does not support network management and is woken up via a hard-wired signal, then the power replenishment strategy is determined to be to directly wake up the VCU via the preset auxiliary circuit. The VCU controls the DC converter to recharge the battery until the battery voltage is greater than the preset voltage value.

2. The method for charging an automotive battery as described in claim 1, characterized in that, The step of determining the battery charging strategy based on the vehicle status includes: When the vehicle is in a powered-on state, the current voltage value of the battery is detected; Based on the current voltage value and the second preset voltage value, it is determined whether to recharge the battery, and the recharging strategy for the battery is determined based on the determination result.

3. The method for charging an automotive battery as described in claim 2, characterized in that, The step of replenishing the battery according to the replenishment strategy and the current voltage value includes: When the current voltage value is not greater than the second preset voltage value, the power replenishment strategy is determined to be to enable the DC-DC converter and battery management system to work by generating an enable signal. The enable signal controls the DC-DC converter and the battery management system to recharge the battery until the recharged battery voltage is greater than a preset voltage value.

4. The method for charging an automotive battery as described in claim 1, characterized in that, The step of determining the battery charging strategy based on the vehicle status includes: When a charging plug signal is detected, the vehicle is determined to be in a high-voltage charging state. The battery charging strategy is determined based on the high-voltage charging state.

5. The method for charging an automotive battery as described in claim 1, characterized in that, The step of determining the battery charging strategy based on the vehicle status includes: When a vehicle discharge signal is detected, the vehicle state is determined to be a high-voltage discharge state; The battery charging strategy is determined based on the high-voltage discharge state.

6. A vehicle battery charging device, characterized in that, The vehicle battery charging device includes: a memory, a processor, and a vehicle battery charging program stored in the memory and executable on the processor. When the vehicle battery charging program is executed by the processor, it implements the steps of the vehicle battery charging method as described in any one of claims 1 to 5.

7. A storage medium, characterized in that, The storage medium stores a vehicle battery charging program, which, when executed by a processor, implements the steps of the vehicle battery charging method as described in any one of claims 1 to 5.

8. A vehicle battery charging device, characterized in that, The vehicle battery charging device includes: The information acquisition module is used to acquire the vehicle status of the target vehicle and the current voltage value of the battery; The strategy determination module is used to determine the battery charging strategy based on the vehicle status. A power replenishment control module is used to replenish the battery according to the power replenishment strategy and the current voltage value; The strategy determination module is also used to acquire the sleep signal of the DC-DC converter when the vehicle is in a power-off state; wake up the preset auxiliary circuit according to the sleep signal, and detect the current voltage value of the battery through the preset auxiliary circuit. The preset auxiliary circuit is a low-power monitoring circuit that is pre-set to assist in voltage monitoring when the DC-DC converter issues a sleep signal. The strategy determination module is further configured to determine whether to wake up the DC converter through the preset auxiliary circuit based on the current voltage value and the first preset voltage value, and to determine the battery charging strategy based on the determination result. The first preset voltage value is the minimum voltage value preset when the vehicle is in a power-off state to determine whether the current voltage value of the battery has reached the charging condition. The power replenishment control module is further configured to, when the current voltage value is not greater than the first preset voltage value, determine the power replenishment strategy as follows: if the DC-DC converter supports network management, the power replenishment strategy is to wake up the DC-DC converter through the preset auxiliary circuit so that the woken DC-DC converter wakes up the VCU; if the DC-DC converter does not support network management and is woken up by a hard-wired signal, the power replenishment strategy is to directly wake up the VCU through the preset auxiliary circuit; and control the DC-DC converter through the VCU to replenish the battery until the battery voltage value after replenishment is greater than the preset voltage value.

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