High and low voltage battery integrated power supply control method, device, equipment and operating machinery

Abstract

The present invention provides a high- and low-voltage battery integrated power supply control method, device, equipment and operating machinery, the method comprising: when a self-resetting power switch closing signal and an interlock relay closing signal are detected, controlling the low-voltage battery pack to provide low-voltage power supply to the entire vehicle; then detecting whether the high-voltage battery pack meets the power supply conditions; if the high-voltage battery pack meets the power supply conditions, controlling the main positive relay to close, and collecting battery data of the low-voltage battery pack; when the battery data meets the charging standard, controlling the high-voltage battery pack to charge the low-voltage battery pack; when the low-voltage battery pack is charged, if a self-resetting power switch disconnection signal and an interlock relay disconnection signal are detected and no high-voltage battery pack opening signal is retrieved, controlling the low-voltage battery pack and the high-voltage battery pack to stop power output, and centrally and uniformly managing the high-voltage battery pack and the low-voltage battery pack through the same control module, thereby improving the overall management efficiency of the high-voltage battery pack and the low-voltage battery pack.

Description

Technical Field

[0001] The present invention relates to the field of charging control technology, and in particular to a high- and low-voltage battery integrated power supply control method, device, equipment, and operating machinery. Background Art

[0002] Electric vehicles and electric working machinery have gradually occupied a larger proportion in the market. Their main power parts include high-voltage battery packs and low-voltage battery packs. The high-voltage battery packs and low-voltage battery packs are separated from each other and are managed separately for charging and electricity consumption, which can easily lead to management confusion.

[0003] Therefore, how to integrate high-voltage battery packs and low-voltage battery packs for unified management has become a technical problem that technical personnel in this field urgently need to solve. Summary of the Invention

[0004] The present invention provides a high- and low-voltage battery integrated power supply control method, device, equipment and operating machinery to solve the problem of uncentralized control and management of high-voltage battery packs and low-voltage batteries in the prior art.

[0005] The present invention provides a high- and low-voltage battery integrated power supply control method, wherein the high- and low-voltage batteries are integrated in the same box, and the high- and low-voltage batteries are configured with the same control module. The integrated power supply control method includes:

[0006] When a self-resetting power switch closing signal and an interlock relay closing signal are detected, the low-voltage battery pack is controlled to provide low-voltage power supply to the entire vehicle;

[0007] In the process of controlling the low-voltage battery pack to provide low-voltage power to the entire vehicle, detecting whether the high-voltage battery pack meets the power supply conditions;

[0008] If the high-voltage battery pack meets the power supply condition, control the main positive relay to close and collect battery data of the low-voltage battery pack;

[0009] When the battery data meets the charging standard, controlling the high-voltage battery pack to charge the low-voltage battery pack;

[0010] When the low-voltage battery pack is fully charged, if the self-reset power switch disconnect signal and the interlock relay disconnect signal are detected and the high-voltage battery pack start signal is not retrieved, the low-voltage battery pack and the high-voltage battery pack are controlled to stop power output.

[0011] According to a high- and low-voltage battery integrated power supply control method provided by the present invention, when a self-resetting power switch closing signal and an interlock relay closing signal are detected, the low-voltage battery pack is controlled to provide low-voltage power supply for the entire vehicle, including:

[0012] When the self-reset power switch closing signal is detected, it enters the ready working mode;

[0013] When executing the preparation working mode, if the interlock relay closing signal is detected, the preparation working mode is switched to the standard working mode;

[0014] After entering the standard working mode, the low-voltage battery pack is controlled to provide low-voltage power supply for the entire vehicle.

[0015] According to a high and low voltage battery integrated power supply control method provided by the present invention, after entering the standard working mode, the method further includes:

[0016] Control the low-voltage battery pack to perform self-test;

[0017] If the self-test result of the low-voltage battery pack is no fault, collecting the voltage value, current value and temperature value of the low-voltage battery pack;

[0018] When the voltage value, the current value, and the temperature value are all normal, controlling the low-voltage battery pack to provide low-voltage power supply for the entire vehicle;

[0019] If the self-test result of the low-voltage battery pack is that there is a fault, a low-voltage battery pack fault prompt is issued.

[0020] According to a high and low voltage battery integrated power supply control method provided by the present invention, detecting whether the high voltage battery pack meets the power supply conditions includes:

[0021] Detect whether there is a high-voltage battery pack start-up signal;

[0022] If a high-voltage battery pack start-up signal is detected, monitoring the operating state of the high-voltage battery pack;

[0023] If the operating status is no fault, it is determined that the high-voltage battery pack meets the power supply conditions.

[0024] According to a high and low voltage battery integrated power supply control method provided by the present invention, the battery data of the low voltage battery pack includes the remaining power and the discharge current;

[0025] After collecting the battery data of the low-voltage battery pack, the method further includes:

[0026] When the remaining power of the low-voltage battery pack is lower than a preset power, or the discharge current of the low-voltage battery pack is greater than a preset current, it is determined that the low-voltage battery pack meets the charging standard.

[0027] According to a high- and low-voltage battery integrated power supply control method provided by the present invention, controlling the high-voltage battery pack to charge the low-voltage battery pack includes:

[0028] Wake up the DC conversion module and the DC conversion module high-voltage power distribution circuit through bus instructions;

[0029] The DC conversion module is activated, and the voltage of the high-voltage battery pack is converted into a target voltage through the high-voltage power distribution circuit of the DC conversion module and the DC conversion module to charge the low-voltage battery pack.

[0030] According to a high and low voltage battery integrated power supply control method provided by the present invention, if a self-reset power switch disconnection signal and an interlock relay disconnection signal are detected and a high voltage battery pack start signal is not retrieved, the low voltage battery pack and the high voltage battery pack are controlled to stop power output, including:

[0031] If the high-voltage battery pack start signal is not retrieved within the preset time, the main positive relay is controlled to be disconnected, and the high-voltage battery pack is controlled to stop power output;

[0032] After the high-voltage battery pack is controlled to stop outputting power, if a self-resetting power switch disconnection signal and an interlock relay disconnection signal are detected, the low-voltage battery pack is controlled to stop outputting power.

[0033] The present invention also provides a high- and low-voltage battery integrated power supply control device, wherein the high- and low-voltage batteries are integrated in the same box, and the high- and low-voltage batteries are configured with the same control module. The integrated power supply control device includes:

[0034] A low-voltage power supply module is used to control the low-voltage battery pack to provide low-voltage power to the entire vehicle when a self-resetting power switch closing signal and an interlock relay closing signal are detected;

[0035] A high-voltage charging module is configured to detect whether the high-voltage battery pack meets the power supply conditions during the process of controlling the low-voltage battery pack to provide low-voltage power to the entire vehicle; if the high-voltage battery pack meets the power supply conditions, control the main positive relay to close and collect battery data of the low-voltage battery pack; and when the battery data meets the charging standard, control the high-voltage battery pack to charge the low-voltage battery pack;

[0036] The charging stop module is used to control the low-voltage battery pack and the high-voltage battery pack to stop power output after the low-voltage battery pack is charged, if a self-reset power switch disconnection signal and an interlock relay disconnection signal are detected and no high-voltage battery pack start-up signal is retrieved.

[0037] The present invention also provides an operating machine, which is used to execute the high and low voltage battery integrated power supply control method as described in any one of the above, or includes the high and low voltage battery integrated power supply control device as described in the above.

[0038] The present invention also provides an electronic device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the program, the high and low voltage battery integrated power supply control method as described above is implemented.

[0039] The present invention also provides a non-transitory computer-readable storage medium having a computer program stored thereon. When the computer program is executed by a processor, the high- and low-voltage battery integrated power supply control method described above is implemented.

[0040] The present invention provides a high- and low-voltage battery integrated power supply control method, device, equipment and operating machinery, wherein the high and low voltage batteries are integrated in the same box, and the high and low voltage batteries are configured with the same control module. The integrated power supply control method includes: when a self-resetting power switch closing signal and an interlock relay closing signal are detected, controlling the low-voltage battery pack to provide low-voltage power supply to the entire vehicle; in the process of controlling the low-voltage battery pack to provide low-voltage power supply to the entire vehicle, detecting whether the high-voltage battery pack meets the power supply conditions; if the high-voltage battery pack meets the power supply conditions, controlling the main positive relay to close, and collecting battery data of the low-voltage battery pack; when the battery data meets the charging standard, controlling the high-voltage battery pack to charge the low-voltage battery pack; when the low-voltage battery pack is charged, if a self-resetting power switch disconnection signal and an interlock relay disconnection signal are detected and no high-voltage battery pack opening signal is retrieved, controlling the low-voltage battery pack and the high-voltage battery pack to stop power output, and centrally and uniformly managing the high-voltage battery pack and the low-voltage battery pack through the same control module, thereby improving the overall management efficiency of the high-voltage battery pack and the low-voltage battery pack, and solving the management confusion problem existing in the separate management of the high-voltage battery pack and the low-voltage battery pack. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0042] Figure 1 It is a flow chart of the high and low voltage battery integrated power supply control method provided by the present invention;

[0043] Figure 2 This is a schematic diagram of the overall process of the high and low voltage battery integrated power supply control method provided by an embodiment of the present invention;

[0044] Figure 3 This is a schematic structural diagram of the high and low voltage battery integrated power supply control device provided by the present invention;

[0045] Figure 4It is a structural schematic diagram of the electronic device provided by the present invention. DETAILED DESCRIPTION

[0046] To make the objectives, technical solutions, and advantages of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0047] The following combination Figures 1 to 4 The present invention describes a high- and low-voltage battery integrated power supply control method, device, equipment, and operating machinery.

[0048] Figure 1 It is a flow chart of the high and low voltage battery integrated power supply control method provided by the present invention.

[0049] like Figure 1 As shown, an embodiment of the present invention provides a high- and low-voltage battery integrated power supply control method, in which the high and low-voltage batteries are integrated in the same box, which can be a non-standard box. The high and low-voltage batteries are configured with the same control module. One of the high-voltage batteries of the entire vehicle is made into a non-standard box. The size and appearance of the box remain unchanged. A 24V low-voltage battery pack is installed in the empty space next to the control module inside the box. Among them, the high and low-voltage batteries include a high-voltage battery pack and a low-voltage battery pack. The high-voltage battery pack is a power battery, and the low-voltage battery pack is used for the vehicle's low-voltage electrical equipment. In addition, in order to better save electricity costs, the boxes that integrate the high-voltage battery pack and the low-voltage battery pack are selected with separate numbers and are set at a place close to the frame, which is also convenient for line layout and shortens the line length. Moreover, the 24V / 20Ah low-voltage battery pack is integrated into the 600V high-voltage battery pack, eliminating the low-voltage battery pack housing, battery management board and related accessories, and the detection and control of the low-voltage battery pack are integrated in the same control module. The execution subject of this application is the control module, and the integrated power supply control method mainly includes the following steps:

[0050] 101. When the self-resetting power switch closing signal and the interlock relay closing signal are detected, the low-voltage battery pack is controlled to provide low-voltage power supply for the entire vehicle.

[0051] In a specific implementation, this embodiment uses a pure electric vehicle as an example. It should be noted that pure electric vehicles include transport vehicles such as large-scale operating machinery. When the vehicle requires power, the user can manually press the self-reset switch on the low-voltage power supply. Upon receiving the self-reset power-off signal and the interlock relay closure signal, the control module signals the need for low-voltage power supply to the entire vehicle. Consequently, the control module controls the low-voltage battery pack to provide low-voltage power to the entire vehicle, ensuring that the vehicle's low-voltage electrical equipment can operate.

[0052] 102. In the process of controlling the low-voltage battery pack to provide low-voltage power to the entire vehicle, check whether the high-voltage battery pack meets the power supply conditions.

[0053] During the entire process of controlling the low-voltage battery pack to provide low-voltage power to the entire vehicle, the high-voltage battery pack is tested to see if it meets the power supply conditions. The power supply conditions at this time refer to whether the high-voltage battery pack meets the conditions for charging the low-voltage battery pack. The testing process can monitor the operating status of the high-voltage battery pack through various sensors, including voltage, current, power, temperature and other data, to ensure that the high-voltage battery pack can charge the low-voltage battery pack under absolutely safe conditions, so that the low-voltage battery pack can be charged and the normal operation of the high-voltage battery pack can continue to be guaranteed.

[0054] 103. If the high-voltage battery pack meets the power supply conditions, the main positive relay is controlled to close and the battery data of the low-voltage battery pack is collected.

[0055] After detecting whether the high-voltage battery pack meets the power supply conditions, if the high-voltage battery pack does not meet the power supply conditions, the high-voltage battery pack needs to be turned off. At this time, only the 24V low-voltage battery pack is monitored and enters low-power sleep mode. Only the low-voltage battery pack in the entire vehicle operates normally to supply the low-voltage electrical equipment in the vehicle to work normally.

[0056] If it is detected that the high-voltage battery pack meets the power supply conditions, it indicates that the high-voltage battery pack is in normal condition. At this time, it is necessary to control the main positive relay to be closed, which controls the on and off of the high-voltage battery pack as a whole. After the main positive relay is closed, both the high-voltage battery pack and the low-voltage battery pack enter the working state, and a connection is established between the high-voltage battery pack and the low-voltage battery pack. Then, the battery data of the low-voltage battery pack is monitored and collected in real time. The battery data can be collected by sensors, effectively completing the battery data collection of the voltage battery pack.

[0057] 104. When the battery data meets the charging standard, control the high-voltage battery pack to charge the low-voltage battery pack.

[0058] After collecting the battery data of the low-voltage battery pack, if it is determined that the battery data does not meet the charging standards, it indicates that the low-voltage battery pack can operate normally at this time, and the normal operation of the low-voltage battery pack can be maintained. If the battery data meets the charging standards, it indicates that the low-voltage battery pack needs to be charged at this time, so it is necessary to control the high-voltage battery pack to charge the low-voltage battery pack. Since the high-voltage battery pack meets the power supply conditions and the low-voltage battery pack meets the charging standards, it indicates that both the high-voltage battery pack and the low-voltage battery pack are in the ready stage, so the high-voltage battery pack can be used to charge the low-voltage battery pack.

[0059] 105. When the low-voltage battery pack is fully charged, if the self-reset power switch disconnect signal and the interlock relay disconnect signal are detected and the high-voltage battery pack start signal is not retrieved, the low-voltage battery pack and the high-voltage battery pack are controlled to stop power output.

[0060] In the process of using the high-voltage battery pack to charge the low-voltage battery pack, the charging status is monitored in real time. When it is detected that the low-voltage battery pack is fully charged, the high-voltage battery pack is controlled to stop charging the low-voltage battery pack. The self-reset power switch signal, interlock relay signal, etc. are detected. If the self-reset power switch is closed and the interlock relay is closed, the low-voltage battery pack can continue to operate normally. If the high-voltage battery pack start signal is detected, the high-voltage battery pack can continue to operate. After charging the low-voltage battery pack, in addition to controlling the high-voltage battery pack to stop charging the low-voltage battery pack, the high-voltage and low-voltage battery packs can continue to operate normally.

[0061] If the high-voltage battery pack is controlled to stop charging the low-voltage battery pack, if the self-reset switch disconnect signal and the interlock relay disconnect signal are detected and the high-voltage battery pack start signal is not retrieved, it indicates that there is no high-voltage power demand and low-voltage power demand at this time. At this time, the high-voltage battery pack and the low-voltage battery pack can be controlled to stop working and stop power output to avoid power waste.

[0062] The present embodiment provides a high- and low-voltage battery integrated power supply control method, including: when a self-resetting power switch closing signal and an interlock relay closing signal are detected, controlling the low-voltage battery pack to provide low-voltage power supply to the entire vehicle; in the process of controlling the low-voltage battery pack to provide low-voltage power supply to the entire vehicle, detecting whether the high-voltage battery pack meets the power supply conditions; if the high-voltage battery pack meets the power supply conditions, controlling the main positive relay to close, and collecting battery data of the low-voltage battery pack; when the battery data meets the charging standard, controlling the high-voltage battery pack to charge the low-voltage battery pack; when the low-voltage battery pack is charged, if a self-resetting power switch disconnection signal and an interlock relay disconnection signal are detected and no high-voltage battery pack start-up signal is retrieved, controlling the low-voltage battery pack and the high-voltage battery pack to stop power output, and uniformly managing the high-voltage battery pack and the low-voltage battery pack through the same control module, thereby improving the overall management efficiency of the high-voltage battery pack and the low-voltage battery pack, and solving the management confusion problem existing in the separate management of the high-voltage battery pack and the low-voltage battery pack.

[0063] Furthermore, based on the above embodiments, in this embodiment, when the self-resetting power switch closing signal and the interlock relay closing signal are detected, the low-voltage battery pack is controlled to provide low-voltage power supply to the entire vehicle, including: when the self-resetting power switch closing signal is detected, entering the preparation working mode; when executing the preparation working mode, if the interlock relay closing signal is detected, switching from the preparation working mode to the standard working mode; after entering the standard working mode, controlling the low-voltage battery pack to provide low-voltage power supply to the entire vehicle.

[0064] Among them, after entering the standard working mode, it also includes: controlling the low-voltage battery pack to perform self-inspection; if the self-inspection result of the low-voltage battery pack is fault-free, collecting the voltage value, current value and temperature value of the low-voltage battery pack; when the voltage value, current value and temperature value are all normal, controlling the low-voltage battery pack to provide low-voltage power supply for the entire vehicle; if the self-inspection result of the low-voltage battery pack is faulty, issuing a low-voltage battery pack fault prompt.

[0065] Specifically, when the vehicle requires power, the user manually presses the low-voltage battery pack's self-resetting power switch. The control module detects the self-resetting switch closure signal and enters the overall preparatory operating mode. After entering the preparatory operating mode, if the interlock relay closure signal is detected, the control module enters the standard operating mode, allowing the low-voltage battery pack to operate normally. To ensure the normal operation of the low-voltage battery pack, after entering the standard operating mode, the low-voltage battery pack must also be controlled to perform a self-test. If the self-test results in a low-voltage battery pack failure, a fault prompt is issued, such as illuminating a fault light, to prompt the user to promptly repair the problem and ensure safe power use. If the low-voltage battery pack self-test confirms that there are no faults, the control module collects the low-voltage battery pack's voltage, current, and temperature to determine if they are normal. Only when the voltage, current, and temperature values ​​are within the normal range can the low-voltage battery pack's power safety be guaranteed. The low-voltage battery pack is then controlled to provide low-voltage power to the entire vehicle.

[0066] Furthermore, based on the above embodiment, the detection of whether the high-voltage battery pack meets the power supply conditions in this embodiment includes: detecting whether there is a high-voltage battery pack start-up signal; if the high-voltage battery pack start-up signal is detected, monitoring the operating status of the high-voltage battery pack; if the operating status is fault-free, determining that the high-voltage battery pack meets the power supply conditions.

[0067] Specifically, when the low-voltage battery pack is providing low-voltage power to the entire vehicle, it is necessary to monitor the operation of the high-voltage battery pack in real time. The specific detection method includes first detecting whether there is a high-voltage battery pack start-up signal (ON signal). If the high-voltage battery pack start-up signal is not detected, it indicates that the user has no power demand for the high-voltage battery pack. At this time, it continues to maintain low power consumption mode and monitors the 24V low-voltage battery pack. If the high-voltage battery pack start-up signal is detected, it indicates that the user has a high-voltage power demand at this time, and it is necessary to start monitoring the operation status of the high-voltage battery pack. Data is exchanged with the vehicle controller and DC conversion module in real time through the CAN bus. At the same time, during the monitoring of the high-voltage battery pack, real-time monitoring is performed to see if there are any abnormalities. If there are any abnormalities in the high-voltage battery pack, an alarm will be issued, so that the maintenance and management of the high-voltage battery pack can be completed quickly. If the high-voltage battery pack is in good condition and the operation status is determined to be fault-free, it is determined that the high-voltage battery pack meets the power supply conditions. Only when the high-voltage battery pack is absolutely safe can the high-voltage battery pack be used to charge the low-voltage battery pack, thereby ensuring both charging safety and charging efficiency. When a high-voltage battery pack fails, the high-voltage battery pack can also be troubleshooted and repaired in a timely manner.

[0068] Furthermore, based on the above embodiment, the battery data of the low-voltage battery pack in this embodiment includes the remaining power and the discharge current; after collecting the battery data of the low-voltage battery pack, it also includes: when the remaining power of the low-voltage battery pack is lower than the preset power, or the discharge current of the low-voltage battery pack is greater than the preset current, determining that the low-voltage battery pack meets the charging standard. Among them, controlling the high-voltage battery pack to charge the low-voltage battery pack includes: waking up the DC conversion module and the DC conversion module high-voltage distribution circuit through bus instructions; activating the DC conversion module, and converting the voltage of the high-voltage battery pack to the target voltage through the DC conversion module high-voltage distribution circuit and the DC conversion module to charge the low-voltage battery pack.

[0069] Specifically, after the high-voltage battery pack meets the power supply conditions, the control main positive relay closes, indicating that the high-voltage battery pack is ready to charge the low-voltage battery pack. It then becomes necessary to determine whether the low-voltage battery pack needs to be charged. This involves collecting the remaining charge and discharge current of the low-voltage battery pack. If the remaining charge is less than 30% of the total charge, this indicates that the low-voltage battery pack's remaining charge is too low. To ensure the low-voltage battery pack can maintain the normal operation of the vehicle's low-voltage equipment, the high-voltage battery pack must be used to charge the low-voltage battery pack. Similarly, if the discharge current of the low-voltage battery pack is greater than 20A, this indicates that the low-voltage battery pack is discharging too much current, and the high-voltage battery pack must also be used to provide power to the low-voltage battery pack. It should be noted that if both the remaining charge of the low-voltage battery pack is less than 30% and the discharge current is greater than 20A, the high-voltage battery pack must also be used to charge the low-voltage battery pack to ensure the low-voltage battery pack can maintain normal low-voltage operation and ensure low-voltage power safety.

[0070] The process of controlling the high-voltage battery pack to charge the low-voltage battery pack is to first wake up the DC conversion module (DCDC) and the DC conversion module's high-voltage distribution circuit through bus instructions. The main function of the DC conversion module and the DC conversion module's high-voltage distribution circuit is to convert the voltage of the high-voltage battery pack into a voltage that can normally charge the 24V low-voltage battery pack. After waking up the DC conversion module, it is necessary to activate the DC conversion module and then accurately convert the voltage of the high-voltage battery pack into a charging voltage that can charge the 24V low-voltage battery pack. This allows the 24V low-voltage battery pack to be charged while ensuring charging safety and preventing damage to the low-voltage battery pack.

[0071] Furthermore, based on the above embodiments, in this embodiment, if the self-resetting power switch disconnect signal and the interlock relay disconnect signal are detected and the high-voltage battery pack start signal is not retrieved, the low-voltage battery pack and the high-voltage battery pack are controlled to stop power output, including: if the high-voltage battery pack start signal is not retrieved within a preset time length, the main positive relay is controlled to disconnect, and the high-voltage battery pack is controlled to stop power output; after controlling the high-voltage battery pack to stop output, if the self-resetting power switch disconnect signal and the interlock relay disconnect signal are detected, the low-voltage battery pack is controlled to stop power output.

[0072] Specifically, during the process of charging the low-voltage battery pack via the high-voltage battery pack, if the remaining charge of the low-voltage battery pack is detected to be greater than 95%, indicating that the low-voltage battery pack is now fully charged, the high-voltage battery pack is controlled to stop charging the low-voltage battery pack. After stopping charging, if the high-voltage battery pack on-state signal is not detected within a preset time, such as 5 seconds, indicating that the user has turned off the high-voltage battery pack switch, the vehicle enters low-power mode again, monitoring only the operating status of the low-voltage battery pack and controlling the main positive relay to disconnect, so that only the low-voltage battery pack outputs low voltage. The vehicle then continues to monitor the self-resetting power switch signal and the interlock relay signal. If the self-resetting power switch off signal is detected (for example, if the self-resetting power switch signal is pressed and held for 5 seconds, indicating that the user has actively turned off the self-resetting power switch of the low-voltage battery pack), the disconnect signal is detected, and the normal power relay is controlled to disconnect, disconnecting the 24V low-voltage battery pack from external power. The controller then retrieves the interlock relay off signal, indicating that all power output of the vehicle has ceased, and operation has ceased. The entire process of the low-voltage battery pack supplying power to the entire vehicle, the high-voltage battery pack charging the low-voltage battery pack, the high-voltage battery pack stopping power output, and the low-voltage battery pack stopping power output is completed, which effectively simplifies the control process and improves the control efficiency of the high-voltage battery pack and the low-voltage battery pack.

[0073] Figure 2 It is a schematic diagram of the overall flow of the high and low voltage battery integrated power supply control method provided by an embodiment of the present invention.

[0074] When the vehicle needs electricity, the user can choose to manually press the self-resetting power switch on the low-voltage battery pack. The control module of the low-voltage battery pack enters the preparation mode, and then the control module controls the interlock relay to conduct, the negative pole of the control module is connected, and the control module in the low-voltage battery pack enters the standard working mode. The low-voltage battery pack then performs a self-test. If the self-test result is a fault, the fault light will light up to indicate the fault and troubleshooting is required. If the self-test result is no fault, the control unit will collect voltage, temperature and current from the 24V low-voltage battery pack. The control unit controls the low-voltage relay corresponding to the 24V low-voltage battery pack to conduct, and the low-voltage power supply provides low-voltage power to the entire vehicle. Then the control module detects whether there is an ON signal. If there is no ON signal, it enters low-power sleep mode and only monitors the 24V low-voltage battery pack. If an ON signal is detected, the control module starts monitoring and managing the high-voltage battery pack. The control unit exchanges data with the whole vehicle, that is, the whole vehicle DCDC, through the whole vehicle CAN, and then detects whether the high-voltage battery pack has an alarm prompt. If there is an alarm, a reminder is issued and the fault is eliminated. If there is no fault, the control module controls the total positive relay output to control the 24V low-voltage battery pack to power the whole vehicle. The control module monitors and calculates the remaining power of the 24V low-voltage battery pack in real time. When the remaining charge of the 24V low-voltage battery pack is less than 30%, or when the discharge current of the 24V low-voltage battery pack is greater than 20A, the control module wakes up the DCDC module and the DCDC high-voltage distribution circuit through bus instructions, and then activates the DCDC to charge the 24V low-voltage battery pack by converting the high voltage of the high-voltage battery pack to 24V. When the remaining charge of the 24V low-voltage battery pack is greater than 95%, charging stops. If the control unit does not detect an ON signal within 5S, it enters low-power sleep mode again. The control module controls the closing of the main positive relay, and the entire vehicle only outputs low-voltage power. When the vehicle is parked for a long time, the user presses and holds the self-reset power switch on the low-voltage battery pack for 5S. The control module controls the closing of the low-voltage relay, and the 24V low-voltage battery pack stops supplying power to the outside. The control module controls the disconnection of the interlock relay, the control module stops working, and the vehicle power consumption process ends.

[0075] Based on the same general inventive concept, the present invention also protects a high and low voltage battery integrated power supply control device. The high and low voltage battery integrated power supply control device provided by the present invention is described below. The high and low voltage battery integrated power supply control device described below and the high and low voltage battery integrated power supply control method described above can be referenced to each other.

[0076] Figure 3 It is a structural schematic diagram of the high and low voltage battery integrated power supply control device provided by the present invention.

[0077] like Figure 3As shown, an embodiment of the present invention provides a high- and low-voltage battery integrated power supply control device, wherein the high- and low-voltage batteries are integrated in the same box, and the high- and low-voltage batteries are configured with the same control module. The integrated power supply control device includes:

[0078] The low-voltage power supply module 301 is used to control the low-voltage battery pack to provide low-voltage power to the entire vehicle when a self-resetting power switch closing signal and an interlock relay closing signal are detected;

[0079] The high-voltage charging module 302 is configured to detect whether the high-voltage battery pack meets the power supply conditions during the process of controlling the low-voltage battery pack to provide low-voltage power to the entire vehicle; if the high-voltage battery pack meets the power supply conditions, control the main positive relay to close and collect battery data of the low-voltage battery pack; and when the battery data meets the charging standard, control the high-voltage battery pack to charge the low-voltage battery pack;

[0080] The charging stop module 303 is used to control the low-voltage battery pack and the high-voltage battery pack to stop power output after the low-voltage battery pack is charged, if a self-reset power switch disconnection signal and an interlock relay disconnection signal are detected and no high-voltage battery pack start-up signal is retrieved.

[0081] The present embodiment provides a high- and low-voltage battery integrated power supply control device, in which the high and low voltage batteries are integrated in the same box, and the high and low voltage batteries are configured with the same control module. The integrated power supply control method includes: when a self-resetting power switch closing signal and an interlock relay closing signal are detected, controlling the low-voltage battery pack to provide low-voltage power supply to the entire vehicle; in the process of controlling the low-voltage battery pack to provide low-voltage power supply to the entire vehicle, detecting whether the high-voltage battery pack meets the power supply conditions; if the high-voltage battery pack meets the power supply conditions, controlling the main positive relay to close and collecting battery data of the low-voltage battery pack; when the battery data meets the charging standard, controlling the high-voltage battery pack to charge the low-voltage battery pack; when the low-voltage battery pack is charged, if a self-resetting power switch disconnection signal and an interlock relay disconnection signal are detected and no high-voltage battery pack opening signal is retrieved, controlling the low-voltage battery pack and the high-voltage battery pack to stop power output, and uniformly managing the high-voltage battery pack and the low-voltage battery pack through the same control module, thereby improving the overall management efficiency of the high-voltage battery pack and the low-voltage battery pack, and solving the management confusion problem existing in the separate management of the high-voltage battery pack and the low-voltage battery pack.

[0082] Furthermore, the low-voltage power supply module 301 in this embodiment is specifically used to:

[0083] When the self-reset power switch closing signal is detected, it enters the ready working mode;

[0084] When executing the preparation working mode, if the interlock relay closing signal is detected, the preparation working mode is switched to the standard working mode;

[0085] After entering the standard working mode, the low-voltage battery pack is controlled to provide low-voltage power supply for the entire vehicle.

[0086] Furthermore, the low-voltage power supply module 301 in this embodiment is further configured to:

[0087] Control the low-voltage battery pack to perform self-test;

[0088] If the self-test result of the low-voltage battery pack is no fault, collecting the voltage value, current value and temperature value of the low-voltage battery pack;

[0089] When the voltage value, the current value, and the temperature value are all normal, controlling the low-voltage battery pack to provide low-voltage power supply for the entire vehicle;

[0090] If the self-test result of the low-voltage battery pack is that there is a fault, a low-voltage battery pack fault prompt is issued.

[0091] Furthermore, the high-voltage charging module 302 in this embodiment is specifically configured to:

[0092] Detect whether there is a high-voltage battery pack start-up signal;

[0093] If a high-voltage battery pack start-up signal is detected, monitoring the operating state of the high-voltage battery pack;

[0094] If the operating status is no fault, it is determined that the high-voltage battery pack meets the power supply conditions.

[0095] Furthermore, the battery data of the low-voltage battery pack in this embodiment includes the remaining power and the discharge current; correspondingly, the high-voltage charging module 302 is further configured to:

[0096] When the remaining power of the low-voltage battery pack is lower than a preset power, or the discharge current of the low-voltage battery pack is greater than a preset current, it is determined that the low-voltage battery pack meets the charging standard.

[0097] Furthermore, the high-voltage charging module 302 in this embodiment is further configured to:

[0098] Wake up the DC conversion module and the DC conversion module high-voltage power distribution circuit through bus instructions;

[0099] The DC conversion module is activated, and the voltage of the high-voltage battery pack is converted into a target voltage through the high-voltage power distribution circuit of the DC conversion module and the DC conversion module to charge the low-voltage battery pack.

[0100] Furthermore, the charging stop module 303 in this embodiment is specifically configured to:

[0101] If the high-voltage battery pack start signal is not retrieved within the preset time, the main positive relay is controlled to be disconnected, and the high-voltage battery pack is controlled to stop power output;

[0102] After the high-voltage battery pack is controlled to stop outputting power, if a self-resetting power switch disconnection signal and an interlock relay disconnection signal are detected, the low-voltage battery pack is controlled to stop outputting power.

[0103] Based on the same general inventive concept, the present invention also provides an operating machine, which is used to execute the high and low voltage battery integrated power supply control method as any of the above embodiments, or includes a high and low voltage battery integrated power supply control device as any of the above embodiments.

[0104] Figure 4 It is a structural schematic diagram of the electronic device provided by the present invention.

[0105] like Figure 4 As shown, the electronic device may include: a processor (processor) 410, a communication interface (Communications Interface) 420, a memory (memory) 430 and a communication bus 440, wherein the processor 410, the communication interface 420, and the memory 430 communicate with each other through the communication bus 440. The processor 410 can call the logic instructions in the memory 430 to execute the high and low voltage battery integrated power supply control method, where the high and low voltage batteries are integrated in the same box, and the high and low voltage batteries are configured with the same control module. The method includes: when a self-resetting power switch closing signal and an interlock relay closing signal are detected, controlling the low voltage battery pack to provide low voltage power supply to the entire vehicle; in the process of controlling the low voltage battery pack to provide low voltage power supply to the entire vehicle, detecting whether the high voltage battery pack meets the power supply conditions; if the high voltage battery pack meets the power supply conditions, controlling the main positive relay to close, and collecting the battery data of the low voltage battery pack; when the battery data meets the charging standard, controlling the high voltage battery pack to charge the low voltage battery pack; when the low voltage battery pack is charged, if the self-resetting power switch disconnection signal and the interlock relay disconnection signal are detected and the high voltage battery pack start signal is not retrieved, then controlling the low voltage battery pack and the high voltage battery pack to stop power output.

[0106] In addition, the logic instructions in the above-mentioned memory 430 can be implemented in the form of a software functional unit and can be stored in a computer-readable storage medium when sold or used as an independent product. Based on this understanding, the technical solution of the present invention, 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. The computer software product 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 perform all or part of the steps of the method described in each embodiment of the present invention. 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.

[0107] On the other hand, the present invention also provides a computer program product, which includes a computer program stored on a non-transitory computer-readable storage medium, and the computer program includes program instructions. When the program instructions are executed by a computer, the computer can execute the high- and low-voltage battery integrated power supply control method provided by the above methods, wherein the high- and low-voltage batteries are integrated in the same box, and the high- and low-voltage batteries are configured with the same control module. The method includes: when a self-reset power switch closing signal and an interlock relay closing signal are detected, controlling the low-voltage battery pack to provide low-voltage power supply to the entire vehicle; in the process of controlling the low-voltage battery pack to provide low-voltage power supply to the entire vehicle, detecting whether the high-voltage battery pack meets the power supply conditions; if the high-voltage battery pack meets the power supply conditions, controlling the main positive relay to close and collecting battery data of the low-voltage battery pack; when the battery data meets the charging standard, controlling the high-voltage battery pack to charge the low-voltage battery pack; when the low-voltage battery pack is charged, if the self-reset power switch disconnection signal and the interlock relay disconnection signal are detected and the high-voltage battery pack opening signal is not retrieved, controlling the low-voltage battery pack and the high-voltage battery pack to stop power output.

[0108] On the other hand, the present invention also provides a non-transitory computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, is implemented to execute the above-mentioned high and low voltage battery integrated power supply control methods, wherein the high and low voltage batteries are integrated in the same box, and the high and low voltage batteries are configured with the same control module. The method includes: when a self-resetting power switch closing signal and an interlock relay closing signal are detected, controlling the low voltage battery pack to provide low voltage power supply to the entire vehicle; in the process of controlling the low voltage battery pack to provide low voltage power supply to the entire vehicle, detecting whether the high voltage battery pack meets the power supply conditions; if the high voltage battery pack meets the power supply conditions, controlling the main positive relay to close, and collecting the battery data of the low voltage battery pack; when the battery data meets the charging standard, controlling the high voltage battery pack to charge the low voltage battery pack; when the low voltage battery pack is charged, if the self-resetting power switch disconnection signal and the interlock relay disconnection signal are detected and the high voltage battery pack start signal is not retrieved, controlling the low voltage battery pack and the high voltage battery pack to stop power output.

[0109] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, i.e., they may be located in one location or distributed across multiple network units. Some or all of the modules may be selected based on actual needs to achieve the objectives of the present embodiment. Persons of ordinary skill in the art will be able to understand and implement the present invention without inventive effort.

[0110] Through the description of the above embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus a necessary general hardware platform, or of course, by hardware. Based on this understanding, the essence of the above technical solution or the part that contributes to the existing technology can be embodied in the form of a software product. The computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, a magnetic disk, an optical disk, etc., and includes a number of instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in each embodiment or certain parts of the embodiments.

[0111] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A high and low voltage battery integrated power supply control method, characterized in that: The high and low voltage batteries are integrated in the same box, and the high and low voltage batteries are configured with the same control module. The integrated power supply control method includes: When the self-reset power switch closing signal is detected, it enters the ready working mode; When executing the preparation working mode, if the interlock relay closing signal is detected, the preparation working mode is switched to the standard working mode; After entering the standard working mode, the low-voltage battery pack is controlled to provide low-voltage power supply for the entire vehicle; During the process of controlling the low-voltage battery pack to provide low-voltage power to the entire vehicle, detecting whether there is a high-voltage battery pack start-up signal; if the high-voltage battery pack start-up signal is detected, monitoring the operating status of the high-voltage battery pack; if the operating status is fault-free, determining that the high-voltage battery pack meets the power supply conditions; Controlling the main positive relay to close and collecting battery data of the low-voltage battery pack; When the battery data meets the charging standard, controlling the high-voltage battery pack to charge the low-voltage battery pack; When the low-voltage battery pack is fully charged, if no high-voltage battery pack start-up signal is retrieved within a preset time, the main positive relay is controlled to be disconnected, and the high-voltage battery pack is controlled to stop power output; After the high-voltage battery pack is controlled to stop outputting power, if a self-resetting power switch disconnection signal and an interlock relay disconnection signal are detected, the low-voltage battery pack is controlled to stop outputting power.

2. The high and low voltage battery integrated power supply control method according to claim 1, characterized in that: After entering the standard working mode, the method further includes: Controlling the low-voltage battery pack to perform self-test; If the self-test result of the low-voltage battery pack is no fault, collecting the voltage value, current value and temperature value of the low-voltage battery pack; When the voltage value, the current value, and the temperature value are all normal, controlling the low-voltage battery pack to provide low-voltage power supply for the entire vehicle; If the self-test result of the low-voltage battery pack is that there is a fault, a low-voltage battery pack fault prompt is issued.

3. The high and low voltage battery integrated power supply control method according to claim 1, characterized in that: The battery data of the low-voltage battery pack includes the remaining power and the discharge current; After collecting the battery data of the low-voltage battery pack, the method further includes: When the remaining power of the low-voltage battery pack is lower than a preset power, or the discharge current of the low-voltage battery pack is greater than a preset current, it is determined that the low-voltage battery pack meets the charging standard.

4. The high and low voltage battery integrated power supply control method according to claim 3, characterized in that: The controlling the high-voltage battery pack to charge the low-voltage battery pack includes: Wake up the DC conversion module and the DC conversion module high-voltage power distribution circuit through bus instructions; The DC conversion module is activated, and the voltage of the high-voltage battery pack is converted into a target voltage through the high-voltage power distribution circuit of the DC conversion module and the DC conversion module to charge the low-voltage battery pack.

5. A high and low voltage battery integrated power supply control device, characterized in that: The high and low voltage batteries are integrated in the same box, and the high and low voltage batteries are configured with the same control module. The integrated power supply control device includes: A low-voltage power supply module is configured to enter a preparatory working mode upon detecting a self-resetting power switch closing signal; while in the preparatory working mode, if an interlock relay closing signal is detected, switch from the preparatory working mode to a standard working mode; and after entering the standard working mode, control the low-voltage battery pack to provide low-voltage power to the entire vehicle; The high-voltage charging module is used to detect whether there is a high-voltage battery pack start-up signal during the process of controlling the low-voltage battery pack to provide low-voltage power to the entire vehicle; if the high-voltage battery pack start-up signal is detected, monitor the operating status of the high-voltage battery pack; if the operating status is fault-free, determine that the high-voltage battery pack meets the power supply conditions; if the control main positive relay is closed, and collect battery data of the low-voltage battery pack; when the battery data meets the charging standard, control the high-voltage battery pack to charge the low-voltage battery pack; The charging stop module is used to control the main positive relay to disconnect and the high-voltage battery pack to stop power output if the high-voltage battery pack start signal is not retrieved within a preset time after the low-voltage battery pack is charged; after controlling the high-voltage battery pack to stop output, if the self-resetting power switch disconnect signal and the interlock relay disconnect signal are detected, the low-voltage battery pack is controlled to stop power output.

6. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein: When the processor executes the program, the high- and low-voltage battery integrated power supply control method as described in any one of claims 1 to 4 is implemented.

7. A working machine, characterized in that: The operating machine is used to execute the high and low voltage battery integrated power supply control method as described in any one of claims 1 to 4, or includes the high and low voltage battery integrated power supply control device as described in claim 5.

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