Power supply circuit, power supply control method and related apparatus

Abstract

A power supply circuit (40), a power supply control method and a related apparatus, which relate to the technical field of battery management. The power supply circuit comprises: a first power supply module (401) and a second power supply module (402), wherein the first power supply module comprises a plurality of first power supplies (4011), the plurality of first power supplies are used for connecting to the first power supply module or the second power supply module, the power supply voltage of the first power supply module is a first voltage, and the power supply voltage of the second power supply module is a second voltage. By means of switching the connection of first power supplies to a first power supply module or a second power supply module, the power supply circuit can avoid the problem of the power supply voltage of the first power supply module or the second power supply module failing to meet standards due to a power supply anomaly in the first power supplies, thereby improving the power supply reliability of the first power supply module and the second power supply module.

Description

Power supply circuit, power supply control method and related devices

[0001] This application claims priority to Chinese Patent Application No. 202510073865.9, filed on January 16, 2025, with the China National Intellectual Property Administration, entitled “Power Supply Circuit, Power Supply Control Method and Related Device”, the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of battery management technology, and in particular to a power supply circuit, power supply control method and related device. Background Technology

[0003] As autonomous driving technology matures, driving functions such as automatic braking and automatic steering place higher demands on the reliability of vehicle components. If a low-voltage power supply fails during vehicle operation, it will lead to the failure of corresponding vehicle functions. For example, failure of the autonomous driving controller and / or low-voltage motor can cause the vehicle to lose its ability to automatically brake and / or automatically steer, becoming a serious road safety hazard.

[0004] The current mainstream solution relies on a single low-voltage power supply to power the entire vehicle. However, if the low-voltage power supply experiences a short circuit, open circuit, or overload, it will affect the vehicle's power consumption, thereby endangering driving safety. Therefore, in order to meet the safety requirements of the aforementioned driving functions and reduce the driving risks caused by low-voltage power supply failure, a feasible solution is urgently needed to provide redundant low-voltage power supply for the vehicle. Summary of the Invention

[0005] This application provides a power supply circuit, a power supply control method, and related devices.

[0006] In a first aspect, this application provides a power supply circuit, the power supply circuit comprising:

[0007] A first power supply module and a second power supply module; the first power supply module includes multiple first power sources, which are used to connect to the first power supply module or the second power supply module. The power supply voltage of the first power supply module is a first voltage, and the power supply voltage of the second power supply module is a second voltage.

[0008] In this embodiment, a power supply circuit is provided. This power supply circuit connects one or more first power sources from a first power supply module to a second power supply module, so that the power supply voltage of the first power supply module is a first voltage and the power supply voltage of the second power supply module is a second voltage. It can be understood that by adjusting the connection of the first power source to the first or second power supply module, abnormal power supply from the first power source can prevent substandard power supply voltages in either the first or second power supply module, thereby improving the reliability of the power supply from both the first and second power supply modules in the power supply circuit.

[0009] Optionally, the first voltage supplied by the first power supply module is greater than or equal to the second threshold, and the second voltage supplied by the second power supply module is less than or equal to the third threshold.

[0010] Optionally, the second threshold is greater than the third threshold, and the first voltage supplied by the first power supply module is greater than the second voltage supplied by the second power supply module. The first power supply module is used to supply power to components in the vehicle that require higher voltage, such as high-voltage motors and compressors, while the second power supply module is used to supply power to components in the vehicle that require lower voltage, such as low-voltage motors and controllers.

[0011] In one possible implementation, the first power source is located at the edge of the first power supply module.

[0012] In this embodiment, the position of the first power source in the first power supply module is at the edge position relative to the positions of other power sources in the first power supply module.

[0013] Optionally, if the distance between the location of the first power source in the first power supply module and the boundary of the first power supply module is less than a distance threshold, the first power source is located at the edge.

[0014] Optionally, when the power supplies in the first power supply module are arranged to form a cuboid, the first power supply is the power supply located on the four outermost sides of the cuboid in the first power supply module, and the first power supply is located at the edge.

[0015] Optionally, the power supply located at the edge of the first power supply module is more susceptible to temperature drops, causing its temperature to fall below its normal operating temperature range and resulting in a faster degradation of its power supply's performance. Therefore, using the power supply located at the edge of the first power supply module as the first power supply allows it to be connected to the second power supply module, preventing it from providing a high voltage supply for an extended period and thus avoiding excessively rapid degradation of its performance.

[0016] Optionally, the internal chemical reaction of the power supply causes physical expansion during charging. The power supply located at the edge of the first power supply module experiences greater stress due to the boundary of the first power supply module during this expansion process. This increased stress on the components within the power supply increases the probability of damage, leading to a faster degradation of its performance. Therefore, designating the power supply at the edge of the first power supply module as the first power supply allows it to be connected to the second power supply module, preventing it from providing a high voltage for extended periods and thus avoiding rapid performance degradation.

[0017] In one possible implementation, the voltage of the first power supply is the same as the second voltage of the second power supply module.

[0018] In this embodiment, when more than one first power source is connected to the second power supply module, the power supply voltage of the second power supply module can be met by using any one of the first power sources connected to the second power supply module. The other first power sources not used for power supply are used as redundant power sources to improve the reliability of the second power supply module.

[0019] Optionally, due to limitations in the manufacturing process, different batteries may have different voltages, thus different first power supplies will have different voltages. If the difference between the voltage of the first power supply and the second voltage is less than a voltage threshold, it can be determined that the voltage of the first power supply is the same as the second voltage of the second power supply module.

[0020] In one possible implementation, the power supply circuit further includes a control module.

[0021] The control module is connected to the first power supply.

[0022] The control module is used to obtain the health status of the first power supply and determine whether the first power supply is connected to the first power supply module or the second power supply module based on the health status of the first power supply.

[0023] In this embodiment, the control module determines whether the first power supply is connected to the first power supply module or the second power supply module based on the health status of the first power supply, so that the power supply voltage of the first power supply module is the first voltage and the power supply voltage of the second power supply module is the second voltage, thereby ensuring the reliability of the power supply of the first power supply module and the second power supply module in the power supply circuit.

[0024] Optionally, the control module may be a device equipped with a processor / chip that can execute computer execution instructions, or it may be a processor / chip that can execute computer execution instructions, used to output control instructions to control the first power supply.

[0025] Optionally, if the health of the first power supply is less than the fourth threshold, the health of the first power supply is considered too low. The first power supply will be disconnected from either the first or second power supply module, preventing it from being connected to either module and avoiding the use of a first power supply with low health, which could lead to safety hazards.

[0026] In one possible implementation, the control module connects the first power supply with a health level less than a first threshold among a plurality of first power supplies to the second power supply module.

[0027] In this embodiment, when the health of the first power supply is less than a first threshold, the health of the first power supply is the lowest among multiple first power supplies. The first power supply with the lowest health in the first power supply module is then connected to the second power supply module so that the second power supply module provides power. By disconnecting the power supply with the lowest health from the first power supply module, the participation of the power supply with the lowest health in the first power supply module is reduced, thus slowing down the rate of health decay of that power supply and balancing the health of the multiple first power supplies.

[0028] Optionally, the first threshold is not a fixed value and can be adjusted according to different application scenarios. This application embodiment does not impose any restrictions on this.

[0029] In one possible implementation, health status includes any one or more of the following: full-load voltage, charging power and / or charging current, discharging power and / or discharging current, feed voltage, and power supply capacity.

[0030] In this embodiment, when the health status includes full-load voltage, the control module determines whether to connect to the first power supply module or the second power supply module based on the full-load voltage of the first power supply.

[0031] When the health status includes charging power and / or charging current, the control module determines whether to connect to the first power supply module or the second power supply module based on the charging power and / or charging current of the first power supply.

[0032] When the health status includes discharge power and / or discharge current, the control module determines whether to connect to the first power supply module or the second power supply module based on the discharge power and / or discharge current of the first power supply.

[0033] When the health status includes the feed voltage, the control module determines whether to connect to the first power supply module or the second power supply module based on the discharge power and / or discharge current of the first power supply.

[0034] When the health status includes discharge power and / or discharge current, the control module determines whether to connect to the first power supply module or the second power supply module based on the discharge power and / or discharge current of the first power supply.

[0035] By determining the health of the first power supply using one or more of the above indicators, the power supply with a lower health is disconnected from the first power supply module, reducing the participation of the power supply with a lower health in the power supply of the first power supply module, and slowing down the rate of decline of the health of the power supply, thereby balancing the health of multiple first power supplies.

[0036] In one possible implementation, the second power supply module further includes a second power source, and the second power source and the first power source connected to the second power supply module are used for power supply or backup. The health of the power source used for power supply in the second power supply module is greater than or equal to the health of the power source used for backup.

[0037] In this embodiment, the second power supply module includes a second power source and a first power source connected to the second power supply module. The second power source and the first power source are used for power supply or backup. Specifically, the health status of the power source used for power supply in the second power supply module is greater than or equal to the health status of the backup power source. When the power source in the second power supply module is connected to the load, it is used for power supply; when the power source in the second power supply module is not connected to the load, it is used for backup. By configuring a power source for power supply and a backup power source in the second power supply module, the insufficient power supply voltage of the second power supply module caused by abnormal power supply in the second power supply module is reduced, thereby improving the reliability of the second power supply module.

[0038] Optionally, the power supply in the second power supply module is used for backup. This can be understood as the power supply not being used for power supply. When the power supply in the second power supply module fails, the backup power supply can be used to provide power.

[0039] Optionally, the first power supply module is used to supply power to the second power supply.

[0040] In one possible implementation, the voltage of the second power source is the same as the second voltage of the second power supply module.

[0041] In this embodiment, the power supply in the second power supply module includes a second power supply and a first power supply connected to the second power supply module. The second power supply is sufficient to meet the power supply voltage requirements of the second power supply module. When the second power supply is used for power supply, the first power supply connected to the second power supply module can serve as a backup power supply, improving the reliability of the power supply to the second power supply module.

[0042] Optionally, the second power source can be a lead-acid battery or a lithium-ion battery.

[0043] In one possible implementation, the power supply circuit is applied to the first load and the second load, the first power source in the second power supply module is used to supply power to the first load, and the second power source in the second power supply module is used to supply power to the second load.

[0044] In this embodiment, when the second power source in the second power supply module is used to supply power, the second power source is used to supply power to the second load. When the first power source connected to the second power supply module is used to supply power, the first power source is used to supply power to the first load.

[0045] Optionally, the number of first power supplies connected to the second power supply module is one or more. When the health status of the second power supply is greater than or equal to the health status of one or more first power supplies connected to the second power supply module, the second power supply is used to power the second load; when the health status of the first power supply is greater than or equal to the health status of the second power supply and the health status of other first power supplies in the second power supply module, the first power supply is used to power the first load.

[0046] Optionally, the first load includes loads with high safety requirements such as the automatic driving controller and the steering controller, and the second load includes loads with high safety requirements in the first load and loads with low safety requirements such as the wiper system and the headlight system.

[0047] In one possible implementation, the power supply circuit further includes a switching module, which includes a first switch, and the plurality of first power supplies include a third power supply.

[0048] The control module is connected to the first switch, and the third power supply is connected to the first power supply module through the first switch.

[0049] If the health status of the third power supply is lower than that of the other power supplies among the multiple first power supplies, the control module controls the first switch to open, so that the third power supply is disconnected from the first power supply module and connected to the second power supply module.

[0050] In this embodiment, when the health of the third power supply is lower than that of the other power supplies among the multiple first power supplies, the health of the third power supply is the power supply with the lower health among the first power supplies connected to the first power supply module. The power supply with the lower health is disconnected from the first power supply module to reduce the participation of the power supply with the lower health in the power supply of the first power supply module and reduce the rate of decay of the health of the power supply, thereby balancing the health of the multiple first power supplies.

[0051] Optionally, each first power source corresponds to a switch, and the first power source is connected to the first power supply module through its corresponding switch. For specific implementation details, please refer to the corresponding description above, which will not be repeated here.

[0052] Optionally, when the third power supply is connected to the second power supply module, the power supply with the higher health status among the first power supplies connected to the second power supply module is disconnected from the second power supply module and connected to the first power supply module, so that the power supply voltage of the power supply in the first power supply module is the first voltage.

[0053] In one possible implementation, the switch module further includes a second switch.

[0054] The second switch is connected to the third power supply and the control module.

[0055] If the health status of the third power supply is greater than or equal to the health status of the power supply in the second power supply module, the control module controls the second switch to close so that the third power supply can be used for power supply.

[0056] In this embodiment, when the health of the third power supply is greater than or equal to the health of the power supply in the second power supply module, the third power supply is the power supply with higher health in the second power supply module. By using the power supply with higher health, the decay rate of the health of the power supply with lower health in the second power supply module is reduced, thereby balancing the health of the power supplies in the second power supply module.

[0057] Optionally, when the third power supply is used for power supply and the health of the third power supply is lower than the health of any power supply in the second power supply module, the second switch is controlled to be disconnected so that the third power supply is used for backup, and a power supply with a health higher than the health of the third power supply is controlled to be used for power supply.

[0058] Optionally, each power source connected to the second power supply module has a corresponding switch. By controlling the switch to close or open, the power source connected to the second power supply module can be controlled for power supply or backup. For specific implementation details, please refer to the corresponding description above, which will not be repeated here.

[0059] In a second aspect, embodiments of this application provide a power supply control method applied to a power supply circuit as described in the first aspect or any possible implementation thereof; the power supply control method includes:

[0060] Multiple first power sources in the first power supply module of the control power supply circuit are connected to the first power supply module or the second power supply module of the power supply circuit to achieve the first power supply voltage of the first power supply module as the first voltage and the second power supply voltage of the second power supply module as the second voltage.

[0061] In this embodiment of the application, by controlling the first power supply of the first power supply module in the power supply circuit to be connected to the second power supply module, it is possible to use the first power supply connected to the second power supply module to provide power, so that the output voltage of the second power supply module reaches the second voltage.

[0062] In this embodiment, one or more first power sources in the first power supply module are connected to the second power supply module, so that the power supply voltage of the first power supply module is a first voltage and the power supply voltage of the second power supply module is a second voltage. It can be understood that by adjusting the connection of the first power source to the first or second power supply module, abnormal power supply from the first power source can prevent substandard power supply voltage in either the first or second power supply module, thereby improving the reliability of the power supply from both the first and second power supply modules in the power supply circuit.

[0063] In one possible embodiment, the first power source is located at the edge of the first power supply module.

[0064] In this embodiment, the position of the first power source in the first power supply module is at the edge position relative to the positions of other power sources in the first power supply module.

[0065] Optionally, if the distance between the location of the first power source in the first power supply module and the boundary of the first power supply module is less than a distance threshold, the first power source is located at the edge.

[0066] Optionally, when the power supplies in the first power supply module are arranged to form a cuboid, the first power supply is the power supply located on the four outermost sides of the cuboid in the first power supply module, and the first power supply is located at the edge.

[0067] Optionally, the power supply located at the edge of the first power supply module is more susceptible to temperature drops, causing its temperature to fall below its normal operating temperature range and resulting in a faster degradation of its power supply's performance. Therefore, using the power supply located at the edge of the first power supply module as the first power supply allows it to be connected to the second power supply module, preventing it from providing a high voltage supply for an extended period and thus avoiding excessively rapid degradation of its performance.

[0068] Optionally, the internal chemical reaction of the power supply causes physical expansion during charging. The power supply located at the edge of the first power supply module experiences greater stress due to the boundary of the first power supply module during this expansion process. This increased stress on the components within the power supply increases the probability of damage, leading to a faster degradation of its performance. Therefore, designating the power supply at the edge of the first power supply module as the first power supply allows it to be connected to the second power supply module, preventing it from providing a high voltage for extended periods and thus avoiding rapid performance degradation.

[0069] In one possible implementation, the voltage of the first power supply is the same as the second voltage of the second power supply module.

[0070] In this embodiment, when more than one first power source is connected to the second power supply module, the power supply voltage of the second power supply module can be met by using any one of the first power sources connected to the second power supply module. The other first power sources not used for power supply are used as redundant power sources to improve the reliability of the second power supply module.

[0071] In one possible implementation, the power supply control method further includes:

[0072] Obtain the health status of multiple first power supplies, and determine whether the first power supply is connected to the first power supply module or the second power supply module based on the health status of the first power supply.

[0073] In this embodiment, the control module determines whether the first power supply is connected to the first power supply module or the second power supply module based on the health status of the first power supply, so that the power supply voltage of the first power supply module is the first voltage and the power supply voltage of the second power supply module is the second voltage, thereby ensuring the reliability of the power supply of the first power supply module and the second power supply module in the power supply circuit.

[0074] In one possible implementation, the power supply control method further includes:

[0075] Connect the first power supply whose health level is less than the first threshold among multiple first power supplies to the second power supply module.

[0076] In this embodiment, when the health of the first power supply is less than a first threshold, the health of the first power supply is the lowest among multiple first power supplies. The first power supply with the lowest health in the first power supply module is then connected to the second power supply module so that the second power supply module provides power. By disconnecting the power supply with the lowest health from the first power supply module, the participation of the power supply with the lowest health in the first power supply module is reduced, thus slowing down the rate of health decay of that power supply and balancing the health of the multiple first power supplies.

[0077] Optionally, the first threshold is not a fixed value and can be adjusted according to different application scenarios. This application embodiment does not impose any restrictions on this.

[0078] In one possible implementation, health status includes any one or more of the following: full-load voltage, charging power and / or charging current, discharging power and / or discharging current, feed voltage, and power supply capacity.

[0079] In this embodiment, when the health status includes full-load voltage, the control module determines whether to connect to the first power supply module or the second power supply module based on the full-load voltage of the first power supply.

[0080] When the health status includes charging power and / or charging current, the control module determines whether to connect to the first power supply module or the second power supply module based on the charging power and / or charging current of the first power supply.

[0081] When the health status includes discharge power and / or discharge current, the control module determines whether to connect to the first power supply module or the second power supply module based on the discharge power and / or discharge current of the first power supply.

[0082] When the health status includes the feed voltage, the control module determines whether to connect to the first power supply module or the second power supply module based on the discharge power and / or discharge current of the first power supply.

[0083] When the health status includes discharge power and / or discharge current, the control module determines whether to connect to the first power supply module or the second power supply module based on the discharge power and / or discharge current of the first power supply.

[0084] By determining the health of the first power supply using one or more of the above indicators, the power supply with a lower health is disconnected from the first power supply module, reducing the participation of the power supply with a lower health in the power supply of the first power supply module, and slowing down the rate of decline of the health of the power supply, thereby balancing the health of multiple first power supplies.

[0085] In one possible implementation, the second power supply in the second power supply module and the first power supply connected to the second power supply module are used for power supply or backup; the health of the power supply used for power supply in the second power supply module is greater than or equal to the health of the power supply used for backup.

[0086] In this embodiment, the second power supply module includes a second power source and a first power source connected to the second power supply module. The second power source and the first power source are used for power supply or backup. Specifically, the health status of the power source used for power supply in the second power supply module is greater than or equal to the health status of the backup power source. When the power source in the second power supply module is connected to the load, it is used for power supply; when the power source in the second power supply module is not connected to the load, it is used for backup. By configuring a power source for power supply and a backup power source in the second power supply module, the insufficient power supply voltage of the second power supply module caused by abnormal power supply in the second power supply module is reduced, thereby improving the reliability of the second power supply module.

[0087] In one possible implementation, the voltage of the second power source is the same as the second voltage of the second power supply module.

[0088] In this embodiment, the power supply in the second power supply module includes a second power supply and a first power supply connected to the second power supply module. The second power supply is sufficient to meet the power supply voltage requirements of the second power supply module. When the second power supply is used for power supply, the first power supply connected to the second power supply module can serve as a backup power supply, improving the reliability of the power supply to the second power supply module.

[0089] In one possible implementation, the power supply circuit is connected to the first load and the second load respectively; the first power supply in the second power supply module is used to supply power to the first load, and the second power supply is used to supply power to the second load.

[0090] In this embodiment, when the second power source in the second power supply module is used to supply power, the second power source is used to supply power to the second load. When the first power source connected to the second power supply module is used to supply power, the first power source is used to supply power to the first load.

[0091] In one possible implementation, the power supply control method further includes:

[0092] If the health of the third power supply among the multiple first power supplies is lower than the health of the other power supplies among the multiple first power supplies, the first switch in the control power supply circuit is turned off, so that the third power supply is disconnected from the first power supply module and connected to the second power supply module.

[0093] In this embodiment, when the health of the third power supply is lower than that of the other power supplies among the multiple first power supplies, the health of the third power supply is the power supply with the lower health among the first power supplies connected to the first power supply module. The power supply with the lower health is disconnected from the first power supply module to reduce the participation of the power supply with the lower health in the power supply of the first power supply module and reduce the rate of decay of the health of the power supply, thereby balancing the health of the multiple first power supplies.

[0094] In one possible implementation, the power supply control method further includes:

[0095] If the health status of the third power supply is greater than or equal to the health status of the power supply in the second power supply module, the second switch in the power supply circuit is closed so that the third power supply can be used for power supply.

[0096] In this embodiment, when the health of the third power supply is greater than or equal to the health of the power supply in the second power supply module, the third power supply is the power supply with higher health in the second power supply module. By using the power supply with higher health, the decay rate of the health of the power supply with lower health in the second power supply module is reduced, thereby balancing the health of the power supplies in the second power supply module.

[0097] Thirdly, embodiments of this application provide a power supply control device, which includes a unit for performing the method as described in any of the second aspects.

[0098] In one possible design, the device includes:

[0099] The processing unit is used to control the first power supply in the power supply circuit to be connected to the first power supply module or the second power supply module, so as to realize that the power supply voltage of the first power supply module is the first voltage and the power supply voltage of the second power supply module is the second voltage.

[0100] In one possible implementation, the device further includes a communication unit;

[0101] This communication unit is used to send control commands;

[0102] Specifically, the processing unit is used to control the first power supply in the power supply circuit to connect to the first power supply module or the second power supply module through control commands, so as to realize that the power supply voltage of the first power supply module is the first voltage and the power supply voltage of the second power supply module is the second voltage.

[0103] Regarding the processing unit and communication unit described in the third aspect and any possible implementation, the steps performed thereon can be referred to the corresponding implementations in the second aspect.

[0104] For the technical effects of the third aspect and any possible implementation, please refer to the description of the technical effects corresponding to the second aspect and the corresponding implementation.

[0105] Optionally, in the power supply control device described in the third aspect above and any possible embodiment:

[0106] In one implementation, the power supply control device is a power supply control equipment. When the power supply control device is a power supply control equipment, the communication unit can be a transceiver or an input / output interface; the processing unit can be at least one processor. Optionally, the transceiver can be a transceiver circuit. Optionally, the input / output interface can be an input / output circuit.

[0107] In another implementation, the power supply control device is a chip (system) or circuit used in a power supply control device. When the power supply control device is a chip (system) or circuit used in a power supply control device, the communication unit can be a communication interface (input / output interface), interface circuit, output circuit, input circuit, pin, or related circuit on the chip (system) or circuit; the processing unit can be at least one processor, processing circuit, or logic circuit.

[0108] Fourthly, embodiments of this application provide a power supply control device, which includes a processor. The processor is coupled to a memory and can be used to execute instructions in the memory to implement the methods of any one of the first to second aspects and any possible implementations described above. Optionally, the power supply control device further includes a memory. Optionally, the power supply control device further includes a communication interface, and the processor is coupled to the communication interface.

[0109] Fifthly, embodiments of this application provide a chip, including: logic circuitry and a communication interface. The communication interface is used to receive or transmit information; the logic circuitry is used to receive or transmit information through the communication interface, causing the chip to execute the methods described in the second aspect and any of the possible implementations above.

[0110] In a sixth aspect, embodiments of this application provide a computer-readable storage medium for storing a computer program (also referred to as code or instructions); when the computer program is run on a computer, the methods described in the second aspect and any possible implementation are implemented.

[0111] In a seventh aspect, embodiments of this application provide a computer program product, the computer program product comprising: a computer program (also referred to as code or instructions); and, when the computer program is run, causing a computer to perform the methods described in the second aspect and any possible implementation thereof.

[0112] Eighthly, embodiments of this application provide a power supply control system, which includes a power supply control device and a power supply circuit as described in the first aspect; wherein the power supply control device is used to perform the methods described in the second aspect and any possible implementation thereof.

[0113] Ninthly, embodiments of this application provide a power supply control system, which includes at least one power supply circuit as described in the first aspect, or a power supply control device as described in the third aspect, or a power supply control device as described in the fourth aspect, or a chip as described in the fifth aspect.

[0114] In a tenth aspect, embodiments of this application provide a terminal, which includes at least one power supply circuit as described in the first aspect, or a power supply control device as described in the third aspect, or a power supply control device as described in the fourth aspect, or a chip as described in the fifth aspect, or a power supply control system as described in the eighth aspect, or a power supply control system as described in the ninth aspect.

[0115] Optionally, the terminal can be a means of transportation, such as a car, truck, aircraft, drone, slow transport vehicle, spacecraft, or ship, or any other possible means of transportation used in any possible scenario. This application embodiment does not limit this.

[0116] Optionally, the terminal is used to implement the methods described in the second aspect and any possible implementation.

[0117] Furthermore, in the process of performing the methods described in the second aspect and any possible implementation described above, the processes related to sending and / or receiving information in the above methods can be understood as the process of the processor outputting information, and / or the process of the processor receiving input information. When outputting information, the processor can output the information to a transceiver (or communication interface, or transmitting module) so that the transceiver can transmit it. After the information is output by the processor, it may need to undergo other processing before reaching the transceiver. Similarly, when the processor receives input information, the transceiver (or communication interface, or transmitting module) receives the information and inputs it to the processor. Furthermore, after the transceiver receives the information, the information may need to undergo other processing before being input to the processor.

[0118] Based on the above principles, for example, the information sent mentioned in the aforementioned method can be understood as information output by the processor. Similarly, the information received can be understood as information received by the processor from input.

[0119] Optionally, unless otherwise specified, or unless they contradict their actual function or internal logic in the relevant description, the operations of the processor, such as transmitting, sending, and receiving, can be more generally understood as processor output and receiving, input, and other operations.

[0120] Optionally, in performing the methods described in the second aspect and any possible implementation above, the processor may be a processor specifically designed to perform these methods, or it may be a processor that performs these methods by executing computer instructions stored in memory, such as a general-purpose processor. The memory may be a non-transitory memory, such as read-only memory (ROM), which may be integrated with the processor on the same chip or disposed on different chips. This application does not limit the type of memory or the arrangement of the memory and processor.

[0121] In one possible implementation, at least one of the aforementioned memories is located outside the device.

[0122] In yet another possible implementation, at least one of the aforementioned memories is located within the device.

[0123] In another possible implementation, a portion of the memory of the at least one memory is located inside the device, while another portion is located outside the device.

[0124] In this application, the processor and memory may also be integrated into a single device, that is, the processor and memory can be integrated together. Attached Figure Description

[0125] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments of this application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0126] Figure 1 is a schematic diagram of a power supply circuit provided in an embodiment of this application;

[0127] Figure 2 is a schematic diagram of another power supply circuit provided in an embodiment of this application;

[0128] Figure 3 is a schematic diagram of another power supply circuit provided in an embodiment of this application;

[0129] Figure 4 is a schematic diagram of another power supply circuit provided in an embodiment of this application;

[0130] Figure 5 is a schematic diagram of another power supply circuit provided in an embodiment of this application;

[0131] Figure 6 is a schematic diagram of another power supply circuit provided in an embodiment of this application;

[0132] Figure 7 is a schematic diagram of another power supply circuit provided in an embodiment of this application;

[0133] Figure 8 is a flowchart illustrating a power supply control method provided in an embodiment of this application;

[0134] Figure 9 is a schematic diagram of a power supply control device provided in an embodiment of this application;

[0135] Figure 10 is a schematic diagram of the structure of an electronic device provided in an embodiment of this application;

[0136] Figure 11 is a schematic diagram of the structure of a chip provided in an embodiment of this application. Detailed Implementation

[0137] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described below with reference to the accompanying drawings.

[0138] The terms "first" and "second," etc., used in the specification, claims, and drawings of this application are used to distinguish different objects, not to describe a specific order. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or apparatuses.

[0139] The term "embodiment" as used herein means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that, unless otherwise specified or logically conflicting, the terminology and / or descriptions between the various embodiments of this application are consistent and can be mutually referenced, and technical features in different embodiments can be combined to form new embodiments based on their inherent logical relationships.

[0140] It should be understood that in this application, "at least one (item)" means one or more, "more than one" means two or more, "at least two (items)" means two or three or more, and "and / or" is used to describe the relationship between related objects, indicating that there can be three relationships. For example, "A and / or B" can mean: only A exists, only B exists, and A and B exist simultaneously, where A and B can be singular or plural. The character " / " generally indicates that the related objects before and after are in an "or" relationship. "At least one (item) of the following" or similar expressions refer to any combination of these items, including any combination of single or plural items. For example, at least one (item) of a, b, or c can mean: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", where a, b, and c can be single or multiple.

[0141] It should be noted that, in this application, "instruction" can include direct instruction, indirect instruction, explicit instruction, and implicit instruction. When describing a certain instruction information for the purpose of instructing A, it can be understood that the instruction information carries A, directly instructs A, or indirectly instructs A.

[0142] In this application, the information indicated by the instruction information is called the information to be instructed. In specific implementations, there are many ways to indicate the information to be instructed, such as, but not limited to, directly indicating the information to be instructed, such as the information to be instructed itself or its index. It can also indirectly indicate the information to be instructed by indicating other information, where there is a correlation between the other information and the information to be instructed. It can also indicate only a part of the information to be instructed, while the other parts are known or pre-agreed upon. For example, the instruction of specific information can be achieved by using a pre-agreed (e.g., protocol-defined) arrangement of various information, thereby reducing instruction overhead to some extent. The information to be instructed can be sent as a whole or divided into multiple sub-information units, and the sending period and / or timing of these sub-information units can be the same or different. This application does not limit the specific sending method. The sending period and / or timing of these sub-information units can be predefined, for example, according to a protocol, or configured by the transmitting device by sending configuration information to the receiving device.

[0143] It should be noted that in this application, "send" can be understood as "output" and "receive" can be understood as "input". "Send information to A", where "to A" simply indicates the direction of information transmission, and A is the destination, does not limit "send information to A" to a direct transmission over the air interface. "Send information to A" includes sending information directly to A, as well as sending information indirectly to A through a transmitter. Therefore, "send information to A" can also be understood as "outputting information destined for A". Similarly, "receive information from A" indicates that the source of the information is A, including receiving information directly from A, as well as receiving information indirectly from A through a receiver. Therefore, "receive information from A" can also be understood as "inputting information from A".

[0144] This application provides a power supply circuit, a control method, and related products, applicable to the field of battery management technology, such as power supply control for redundant loads in vehicles. See Figure 1 for details; Figure 1 is a schematic diagram of a power supply circuit provided in an embodiment of this application.

[0145] As shown in Figure 1, the power supply circuit includes, but is not limited to, a power battery, a first direct current to direct current (DC-DC) converter, a second DC-DC converter, a first storage battery, a second storage battery, a first load, and a second load.

[0146] The power battery is connected to the first DC-DC converter and the second DC-DC converter respectively. The first DC-DC converter is connected to the first battery. The first battery is connected to the first load. The second DC-DC converter is connected to the second battery. The second battery is connected to the second load.

[0147] Optionally, the power battery outputs a higher voltage and supplies power to the first battery through a first DC-DC converter, the first battery providing low-voltage power to the first load, and supplies power to the second battery through a second DC-DC converter, the second battery providing low-voltage power to the second load.

[0148] However, in the above-mentioned power supply scheme of "dual DC-DC converter and dual batteries", the deployment of two DC-DC converters and two batteries leads to problems such as increased vehicle cost, excessive vehicle space occupation, increased wiring harnesses and other accessories, increased vehicle weight and low utilization rate, which in turn leads to excessive vehicle cost and excessive vehicle weight.

[0149] This application provides a schematic diagram of another power supply circuit.

[0150] As shown in Figure 2, the power supply circuit includes, but is not limited to, a power battery, a DC-DC converter, a first battery, a second battery, a first load, and a second load.

[0151] The power battery is connected to a DC-DC converter, which is connected to both a first battery and a second battery. The first battery is connected to a first load, and the second battery is connected to a second load.

[0152] Optionally, the power battery outputs a higher voltage and supplies power to the first battery and the second battery respectively through a DC-DC converter. The first battery is used to provide low-voltage power to the first load, and the second battery is used to provide low-voltage power to the second load.

[0153] However, in the above-mentioned "single DC-DC converter and dual battery" power supply scheme, deploying one DC-DC converter and two batteries simplifies the power supply scheme of "dual DC-DC converter and dual battery" by one DC-DC converter, but deploying two batteries will also lead to problems such as increased vehicle cost, excessive vehicle space occupation, increased wiring harnesses and other accessories, increased vehicle weight and low utilization rate, resulting in excessively high vehicle cost and excessive vehicle weight.

[0154] This application provides a schematic diagram of yet another power supply circuit.

[0155] As shown in Figure 3, the power supply circuit includes, but is not limited to, a power battery, a DC-DC converter, a storage battery, a first load, and a second load.

[0156] The power battery is connected to the conversion device, the first output terminal of the conversion device is connected to the first input terminal of the first load, the second output terminal of the DC-DC conversion device is connected to one end of the battery, and the other end of the battery is connected to the second input terminal of the first load and the input terminal of the second load, respectively.

[0157] Optionally, the power battery outputs a higher voltage and supplies power to the storage battery through a DC-DC converter. The storage battery provides low-voltage power to the first load and the second load. In the event of abnormal power supply from the storage battery, the power battery directly provides low-voltage power to the first load.

[0158] However, in the above-mentioned power supply scheme of "single DC-DC converter and single battery", the power supply circuit formed by the power battery to supply power to the first load and the power supply circuit formed by the power battery to supply power to the first load and the second load through the battery share a common circuit. Therefore, if the common circuit is abnormal and causes the battery power supply to be abnormal, it will also cause the power battery to supply power to the first load to be abnormal, reducing the reliability of the power supply circuit.

[0159] This application provides another power supply circuit, which includes, but is not limited to, a power battery, a storage battery, and a load. The power battery includes a first battery module and a second battery module.

[0160] The first battery module is connected to the first input port of the load, the second battery module is connected to the input port of the battery, and the output port of the battery is connected to the second input port of the load.

[0161] Optionally, the second battery module powers the storage battery, which in turn provides low-voltage power to the load. In the event of a power failure from the storage battery, the first battery module is used to provide low-voltage power to the load.

[0162] Both the first power supply module and the battery in this power supply circuit can provide low-voltage power to the load. However, the probability of battery failure is low, and the probability of using the first power supply module to power the load is also low, resulting in an imbalance in the health of the first and second power supply modules in the power battery.

[0163] In view of this, embodiments of this application provide a power supply circuit, and based on the power supply circuit, a corresponding power supply control method is provided, which is applied in the field of battery management technology, such as power supply control in a vehicle, to improve the utilization rate of the first power supply in the first power supply module.

[0164] Please refer to Figure 4, which is a schematic diagram of another power supply circuit provided in an embodiment of this application.

[0165] As shown in Figure 4, the power supply circuit 40 includes, but is not limited to:

[0166] The first power supply module 401 and the second power supply module 402 are included. The first power supply module 401 includes multiple first power supplies, specifically, the multiple first power supplies include a first power supply 4011.

[0167] The first power supply 4011 is used to connect to the first power supply module 401 or the second power supply module 402, so that the power supply voltage of the first power supply module 401 is the first voltage and the power supply voltage of the second power supply module 402 is the second voltage.

[0168] Optionally, the first power source 4011 consists of one or more batteries.

[0169] Optionally, the first power supply 4011 can consist of a battery and a DC-DC converter, which can output DC (or near-DC) power at different voltages.

[0170] Alternatively, the battery constituting the first power source 4011 can be a lead-acid battery or a lithium-ion battery.

[0171] It is understood that one or more first power sources in the first power supply module 401 are connected to the second power supply module so that the power supply voltage of the first power supply module 401 is the first voltage and the power supply voltage of the second power supply module 402 is the second voltage. It is understood that by adjusting the connection of the first power source to the first or second power supply module, abnormal power supply of the first power source can prevent substandard power supply voltage in either the first or second power supply module, thereby improving the reliability of the power supply to the first power supply module 401 and the second power supply module 402 in the power supply circuit 40.

[0172] Optionally, the first voltage supplied by the first power supply module 401 is greater than or equal to the second threshold, and the second voltage supplied by the second power supply module 402 is less than or equal to the third threshold. The second and third thresholds are not fixed values ​​and can be adjusted according to different application scenarios. This application embodiment does not limit this.

[0173] Optionally, the second threshold is greater than the third threshold, and the first voltage supplied by the first power supply module 401 is greater than the second voltage supplied by the second power supply module 402. The first power supply module 401 is used to supply power to components in the vehicle that require higher voltage, such as high-voltage motors and compressors, while the second power supply module 402 is used to supply power to components in the vehicle that require lower voltage, such as low-voltage motors and controllers.

[0174] Optionally, power can be supplied by multiple first power sources connected to the first power supply module 401, so that the first power supply module 401 outputs a first voltage.

[0175] Optionally, the first power supply module 401 may further include one or more fourth power supplies, which are used to supply power to the first power supply module 401 in conjunction with the first power supply connected to the first power supply module 401, so that the first power supply module 401 outputs a first voltage.

[0176] In one possible embodiment, the first power source 4011 is located at the edge of the first power supply module 401.

[0177] It is understandable that the position of the first power supply 4011 in the first power supply module 401 is at the edge relative to the positions of other power supplies in the first power supply module 401.

[0178] Optionally, the distance between the position of the first power supply 4011 in the first power supply module 401 and the boundary of the first power supply module 401 is less than a distance threshold, and the first power supply 4011 is located at the edge.

[0179] Optionally, when the power supplies in the first power supply module 401 are arranged to form a cuboid, the first power supply 4011 is the power supply located on the four outermost sides of the cuboid in the first power supply module 401, and the first power supply 4011 is located at the edge.

[0180] Optionally, the power supply located at the edge of the first power supply module 401 is more affected by temperature drops, causing the temperature of the first power supply 4011 to fall below its normal operating temperature range, resulting in a higher rate of degradation in the power supply's performance. Therefore, using the power supply located at the edge of the first power supply module 401 as the first power supply 4011 allows it to be connected to the second power supply module 402, preventing it from providing a high voltage supply to the first power supply module 401 for extended periods and thus avoiding excessively rapid degradation in its performance.

[0181] Optionally, the internal chemical reaction of the power supply causes it to physically expand during charging. The power supply located at the edge of the first power supply module 401 is constrained by the boundary of the first power supply module 401 during this physical expansion process, resulting in greater stress on it than power supplies located at other positions within the first power supply module 401. This increased stress on the components of the power supply increases the probability of component damage, leading to a faster degradation of its health. Therefore, the power supply located at the edge of the first power supply module 401 is designated as the first power supply 4011, allowing it to be connected to the second power supply module 402. This avoids the power supply providing a high voltage for an extended period within the first power supply module 401, preventing excessively rapid degradation of its health.

[0182] In one possible embodiment, the voltage of the first power supply 4011 is the same as the second voltage of the second power supply module 402.

[0183] It is understandable that when more than one first power source is connected to the second power supply module 402, the power supply voltage of the second power supply module 402 can be met by using any one of the first power sources connected to the second power supply module 402. The other first power sources not used for power supply are used as redundant power sources to improve the reliability of the second power supply module 402.

[0184] Optionally, due to limitations in the manufacturing process, different batteries may have different voltages, therefore different first power supplies 4011 may have different voltages. If the difference between the voltage of the first power supply 4011 and the second voltage is less than a voltage threshold, it can be determined that the voltage of the first power supply 4011 is the same as the second voltage of the second power supply module.

[0185] In one possible embodiment, the power supply circuit 40 further includes a control module 403.

[0186] For details, please refer to Figure 5, which is a schematic diagram of another power supply circuit provided in the embodiment of this application.

[0187] The control module 403 is connected to the first power supply 4011.

[0188] The control module 403 is used to obtain the health status of the first power supply 4011 and determine whether the first power supply 4011 is connected to the first power supply module 401 or the second power supply module 402 based on the health status of the first power supply 4011.

[0189] Optionally, the control module 403 is connected to the first terminal 4011a of the first power supply 4011, and the second terminal 4011b of the first power supply 4011 is connected to the second power supply module 402.

[0190] Understandably, the control module 403 determines whether the first power supply 4011 is connected to the first power supply module 401 or the second power supply module 402 based on the health status of the first power supply 4011, so that the power supply voltage of the first power supply module 401 is the first voltage and the power supply voltage of the second power supply module 402 is the second voltage, thereby ensuring the reliability of the power supply of the first power supply module 401 and the second power supply module 402 in the power supply circuit 40.

[0191] Optionally, the control module 403 may be a device equipped with a processor / chip that can execute computer execution instructions, or it may be a processor / chip that can execute computer execution instructions, used to output control instructions to control the first power supply 4011.

[0192] In one possible embodiment, the control module 403 connects the first power supply 4011, which has a health level less than a first threshold, among a plurality of first power supplies to the second power supply module 402.

[0193] Understandably, when the health of the first power supply 4011 is less than a first threshold, the health of the first power supply 4011 is the lowest among the multiple first power supplies. The first power supply with the lowest health in the first power supply module 401 is then connected to the second power supply module 402 so that the second power supply module 402 can provide power. By disconnecting the power supply with the lowest health from the first power supply module 401, the participation of the power supply with the lowest health in the first power supply module 401 is reduced, slowing down the rate of health decay of that power supply, thereby balancing the health of the multiple first power supplies.

[0194] Optionally, the first threshold is not a fixed value and can be adjusted according to different application scenarios. This application embodiment does not impose any restrictions on this.

[0195] Optionally, if the health of the first power supply 4011 is less than the fourth threshold, the health of the first power supply 4011 is considered too low. The first power supply 4011 is disconnected from either the first power supply module 401 or the second power supply module 402, preventing it from being connected to either module and avoiding the use of a first power supply with low health, which could lead to safety hazards. The fourth threshold is not a fixed value and can be adjusted according to different application scenarios; this embodiment does not impose any limitations on it.

[0196] In one possible embodiment, health status includes any one or more of the following: full-load voltage, charging power and / or charging current, discharging power and / or discharging current, feed voltage, and power supply capacity.

[0197] Understandably, when the health status includes full-load voltage, the control module 403 determines whether to connect to the first power supply module 401 or the second power supply module 402 based on the full-load voltage of the first power supply 4011.

[0198] When the health status includes charging power and / or charging current, the control module 403 determines whether to connect to the first power supply module 401 or the second power supply module 402 based on the charging power and / or charging current of the first power supply 4011.

[0199] When the health status includes discharge power and / or discharge current, the control module 403 determines whether to connect the first power supply module 401 or the second power supply module 402 based on the discharge power and / or discharge current of the first power supply 4011.

[0200] When the health status includes the power supply voltage, the control module 403 determines whether to connect to the first power supply module 401 or the second power supply module 402 based on the discharge power and / or discharge current of the first power supply 4011.

[0201] When the health status includes discharge power and / or discharge current, the control module 403 determines whether to connect the first power supply module 401 or the second power supply module 402 based on the discharge power and / or discharge current of the first power supply 4011.

[0202] By determining the health of the first power supply using one or more of the above indicators, the power supply with a lower health is disconnected from the first power supply module 401, reducing the participation of the power supply with a lower health in the power supply of the first power supply module 401, and slowing down the rate of decline of the health of the power supply, thereby balancing the health of multiple first power supplies.

[0203] In one possible embodiment, the second power supply module 402 further includes a second power supply 4021, which and a first power supply 4011 connected to the second power supply module are used for power supply or backup. The health of the power supply used for power supply in the second power supply module 402 is greater than or equal to the health of the power supply used for backup.

[0204] It is understood that the second power supply module 402 includes a second power supply 4021 and a first power supply 4011 connected to the second power supply module 402. The second power supply 4021 and the first power supply 4011 are used for power supply or backup. Specifically, the health of the power supply used for power supply in the second power supply module 402 is greater than or equal to the health of the backup power supply. When the power supply in the second power supply module 402 is connected to the load, it is used for power supply; when the power supply in the second power supply module 402 is not connected to the load, it is used for backup. By configuring the power supply for power supply and the backup power supply in the second power supply module 402, the insufficient power supply voltage of the second power supply module 402 caused by abnormal power supply in the second power supply module 402 is reduced, thereby improving the reliability of the second power supply module 402.

[0205] Optionally, the power supply in the second power supply module 402 is used for backup. This can be understood as the power supply not being used for power supply. When the power supply in the second power supply module 402 fails, the backup power supply can be used to provide power.

[0206] Optionally, the first power supply module is used to supply power to the second power supply 4021.

[0207] In one possible embodiment, the voltage of the second power supply 4021 is the same as the second voltage of the second power supply module 402.

[0208] It is understood that the power supply in the second power supply module 402 includes the second power supply 4021 and the first power supply connected to the second power supply module 402. The power supply voltage of the second power supply module 402 can be met by using the second power supply 4021. When the second power supply 4021 is used for power supply, the first power supply connected to the second power supply module 402 can be used as a backup power supply, thereby improving the reliability of the power supply of the second power supply module 402.

[0209] Optionally, the second power source 4021 can be a lead-acid battery or a lithium-ion battery.

[0210] In one possible embodiment, the power supply circuit 40 is applied to the first load and the second load, the first power supply 4011 in the second power supply module 402 is used to supply power to the first load, and the second power supply 4021 in the second power supply module 402 is used to supply power to the second load.

[0211] It is understood that when the second power supply 4021 in the second power supply module 402 is used to supply power, the second power supply 4021 is used to supply power to the second load. When the first power supply 4011 connected to the second power supply module 402 is used to supply power, the first power supply 4011 is used to supply power to the first load.

[0212] Optionally, the number of first power supplies connected to the second power supply module 402 may be one or more. When the health of the second power supply 4021 is greater than or equal to the health of one or more of the first power supplies connected to the second power supply module 402, the second power supply 4021 is used to supply power to the second load. When the health of the first power supply 4011 is greater than or equal to the health of the second power supply 4021 and the health of the other first power supplies in the second power supply module 402, the first power supply 4011 is used to supply power to the first load.

[0213] Optionally, the first load includes loads with high safety requirements such as the automatic driving controller and the steering controller, and the second load includes loads with high safety requirements in the first load and loads with low safety requirements such as the wiper system and the headlight system.

[0214] In one possible embodiment, the power supply circuit 40 further includes a switch module 404, which includes a first switch 4041 and a plurality of first power supplies including a third power supply 4012.

[0215] For details, please refer to Figure 6, which is a schematic diagram of another power supply circuit provided in the embodiment of this application.

[0216] The control module 403 is connected to the first switch 4041, and the third power supply 4012 is connected to the first power supply module 401 through the first switch 4041.

[0217] If the health status of the third power supply 4012 is lower than that of the other power supplies among the multiple first power supplies, the control module 403 controls the first switch 4041 to open, so that the third power supply 4012 is disconnected from the first power supply module 401 and connected to the second power supply module 402.

[0218] Optionally, the first terminal 4012a of the third power supply 4012 is connected to the control module 403, the second terminal 4012b of the third power supply 4012 is connected to the second power supply module 402, the third terminal 4012c of the third power supply 4012 is connected to the first terminal 4041a of the first switch, the second terminal 4041b of the first switch is connected to any one of the multiple first power supplies, and the third terminal 4041c of the first switch is connected to the control module 403.

[0219] It is understandable that when the health of the third power supply 4012 is lower than the health of the other power supplies among the multiple first power supplies, the health of the third power supply 4012 is the power supply with the lower health among the first power supplies connected to the first power supply module 401. The power supply with the lower health is disconnected from the first power supply module 401 to reduce the participation of the power supply with the lower health in the power supply module 401, reduce the rate of decay of the health of the power supply, and thus balance the health of the multiple first power supplies.

[0220] Optionally, each first power supply corresponds to a switch, and the first power supply is connected to the first power supply module 401 through its corresponding switch. For specific implementation details, please refer to the corresponding description above, which will not be repeated here.

[0221] Optionally, when the third power supply 4012 is connected to the second power supply module 402, the power supply with higher health among the first power supplies connected to the second power supply module 402 is disconnected from the second power supply module 402 and connected to the first power supply module 401, so that the power supply voltage of the power supply in the first power supply module is the first voltage.

[0222] In one possible embodiment, the switch module 404 further includes a second switch 4042.

[0223] For details, please refer to Figure 7, which is a schematic diagram of another power supply circuit provided in the embodiment of this application.

[0224] The second switch 4042 is connected to the third power supply and the control module respectively.

[0225] When the health status of the third power supply 4012 is greater than or equal to the health status of the power supply in the second power supply module 402, the control module 403 controls the second switch 4042 to close so that the third power supply 4012 can be used for power supply.

[0226] Optionally, the second terminal 4012b of the third power supply 4012 is connected to the first terminal 4042a of the second switch 4042, the second terminal 4042b of the second switch 4042 outputs a second voltage, and the third terminal 4042c of the second switch 4042 is connected to the control module 403.

[0227] It is understandable that when the health of the third power supply 4012 is greater than or equal to the health of the power supply in the second power supply module, the third power supply 4012 is the power supply with higher health in the second power supply module. Using the power supply with higher health reduces the rate of decline of the health of the power supply with lower health in the second power supply module, thereby balancing the health of the power supplies in the second power supply module.

[0228] Optionally, when the third power supply 4012 is used for power supply and the health of the third power supply 4012 is lower than the health of any power supply in the second power supply module 402, the second switch 4042 is controlled to be turned off so that the third power supply 4012 is used for backup, and a power supply with a health higher than the health of the third power supply is controlled to be used for power supply.

[0229] Optionally, each power source connected to the second power supply module has a corresponding switch. By controlling the switch to close or open, the power source connected to the second power supply module 402 can be controlled for power supply or backup. For specific implementation details, please refer to the corresponding description above, which will not be repeated here.

[0230] It should be understood that Figures 4 to 7 above are merely illustrative examples of several possible embodiments of the power supply circuit provided in this application, and should not be construed as limiting the application.

[0231] It should be understood that any new embodiments obtained by reasonable modifications, additions or combinations of the above Figures 4 to 7 are all within the scope of protection of this application.

[0232] This application also provides a power supply control method, as shown in Figure 8, which is a flowchart illustrating a power supply control method provided in this application. This power supply control method is applied in the field of battery management technology, such as power supply control in vehicles, and can be specifically applied to any of the possible power supply circuits shown in Figures 4 to 7.

[0233] Specifically, the power supply control method includes, but is not limited to, the following steps:

[0234] S801: The power supply control device controls multiple first power sources in the first power supply module of the power supply circuit to be connected to the first power supply module or the second power supply module of the power supply circuit, so as to realize that the power supply voltage of the first power supply module is the first voltage and the power supply voltage of the second power supply module is the second voltage.

[0235] It is understood that the power supply control device in the embodiments of this application may be a device equipped with a processor / chip that can execute computer execution instructions, or it may be a processor / chip that can execute computer execution instructions. Optionally, the power supply control device may be an electronic device, or it may be a processor / chip within an electronic device, used to execute the power supply control method in the embodiments of this application to control the first power source in the first power supply module to be connected to the first power supply module or the second power supply module, thereby realizing the connection of the first power source in the first power supply module to the second power supply module and ensuring the stability of the power supply of the second power supply module.

[0236] Optionally, the power supply control device and power supply control method in the embodiments of this application can be applied to, but are not limited to, vehicle systems. The vehicle equipped with the vehicle system is an intelligent driving vehicle and can be replaced by a terminal device. The terminal device can be, but is not limited to, vehicles such as commercial vehicles, passenger cars, trains, industrial vehicles (such as forklifts, trailers, tractors, etc.), engineering vehicles (such as excavators, bulldozers, cranes, etc.), robots, etc. The embodiments of this application do not specifically limit this.

[0237] It is understandable that by controlling the first power supply of the first power supply module in the power supply circuit to connect to the second power supply module, it is possible to use the first power supply connected to the second power supply module to provide power, so that the output voltage of the second power supply module reaches the second voltage.

[0238] It is understandable that one or more first power sources from the first power supply module are connected to the second power supply module so that the supply voltage of the first power supply module is the first voltage and the supply voltage of the second power supply module is the second voltage. It is also understandable that by adjusting the connection of the first power source to the first or second power supply module, abnormal power supply from the first power source can prevent substandard supply voltages in either the first or second power supply module, thereby improving the reliability of the power supply from both the first and second power supply modules in the power supply circuit.

[0239] In one possible embodiment, the first power source is located at the edge of the first power supply module.

[0240] It is understandable that the position of the first power source in the first power supply module is at the edge relative to the positions of other power sources in the first power supply module.

[0241] Optionally, if the distance between the location of the first power source in the first power supply module and the boundary of the first power supply module is less than a distance threshold, the first power source is located at the edge.

[0242] Optionally, when the power supplies in the first power supply module are arranged to form a cuboid, the first power supply is the power supply located on the four outermost sides of the cuboid in the first power supply module, and the first power supply is located at the edge.

[0243] Optionally, the power supply located at the edge of the first power supply module is more susceptible to temperature drops, causing its temperature to fall below its normal operating temperature range and resulting in a faster degradation of its power supply's performance. Therefore, using the power supply located at the edge of the first power supply module as the first power supply allows it to be connected to the second power supply module, preventing it from providing a high voltage supply for an extended period and thus avoiding excessively rapid degradation of its performance.

[0244] Optionally, the internal chemical reaction of the power supply causes physical expansion during charging. The power supply located at the edge of the first power supply module experiences greater stress due to the boundary of the first power supply module during this expansion process. This increased stress on the components within the power supply increases the probability of damage, leading to a faster degradation of its performance. Therefore, designating the power supply at the edge of the first power supply module as the first power supply allows it to be connected to the second power supply module, preventing it from providing a high voltage for extended periods and thus avoiding rapid performance degradation.

[0245] In one possible embodiment, the voltage of the first power supply is the same as the second voltage of the second power supply module.

[0246] It is understandable that when more than one first power source is connected to the second power supply module, the power supply voltage of the second power supply module can be met by using any one of the first power sources connected to the second power supply module. The other first power sources not used for power supply serve as redundant power sources, thereby improving the reliability of the second power supply module.

[0247] Optionally, due to limitations in the manufacturing process, different batteries may have different voltages, thus different first power supplies will have different voltages. If the difference between the voltage of the first power supply and the second voltage is less than a voltage threshold, it can be determined that the voltage of the first power supply is the same as the second voltage of the second power supply module.

[0248] In one possible embodiment, the power supply control method further includes:

[0249] Obtain the health status of multiple first power supplies, and determine whether the first power supply is connected to the first power supply module or the second power supply module based on the health status of the first power supply.

[0250] Understandably, based on the health status of the first power supply, it is determined whether the first power supply is connected to the first power supply module or the second power supply module, so that the power supply voltage of the first power supply module is the first voltage and the power supply voltage of the second power supply module is the second voltage, thereby ensuring the reliability of the power supply of the first power supply module and the second power supply module in the power supply circuit.

[0251] Optionally, if the health of the first power supply is less than the fourth threshold, the health of the first power supply is considered too low. The first power supply will be disconnected from either the first or second power supply module, preventing it from being connected to either module and avoiding the use of a first power supply with low health, which could lead to safety hazards.

[0252] In one possible embodiment, the power supply control method further includes:

[0253] Connect the first power supply whose health level is less than the first threshold among multiple first power supplies to the second power supply module.

[0254] Understandably, when the health of the first power supply is less than a first threshold, the health of the first power supply is the lowest among multiple first power supplies. The first power supply with the lowest health in the first power supply module is then connected to the second power supply module so that the second power supply module can provide power. By disconnecting the power supply with the lowest health from the first power supply module, the participation of the lower-healthy power supply in the first power supply module is reduced, slowing down the rate of health decay of that power supply, thereby balancing the health of the multiple first power supplies.

[0255] Optionally, the first threshold is not a fixed value and can be adjusted according to different application scenarios. This application embodiment does not impose any restrictions on this.

[0256] In one possible embodiment, health status includes any one or more of the following: full-load voltage, charging power and / or charging current, discharging power and / or discharging current, feed voltage, and power supply capacity.

[0257] Understandably, when the health status includes full-load voltage, the control module determines whether to connect to the first power supply module or the second power supply module based on the full-load voltage of the first power supply.

[0258] When the health status includes charging power and / or charging current, the control module determines whether to connect to the first power supply module or the second power supply module based on the charging power and / or charging current of the first power supply.

[0259] When the health status includes discharge power and / or discharge current, the control module determines whether to connect to the first power supply module or the second power supply module based on the discharge power and / or discharge current of the first power supply.

[0260] When the health status includes the feed voltage, the control module determines whether to connect to the first power supply module or the second power supply module based on the discharge power and / or discharge current of the first power supply.

[0261] When the health status includes discharge power and / or discharge current, the control module determines whether to connect to the first power supply module or the second power supply module based on the discharge power and / or discharge current of the first power supply.

[0262] By determining the health of the first power supply using one or more of the above indicators, the power supply with a lower health is disconnected from the first power supply module, reducing the participation of the power supply with a lower health in the power supply of the first power supply module, and slowing down the rate of decline of the health of the power supply, thereby balancing the health of multiple first power supplies.

[0263] In one possible embodiment, the second power supply in the second power supply module and the first power supply connected to the second power supply module are used for power supply or backup; the health of the power supply used for power supply in the second power supply module is greater than or equal to the health of the power supply used for backup.

[0264] It is understood that the second power supply module includes a second power source and a first power source connected to the second power supply module. The second power source and the first power source are used for power supply or backup. Specifically, the health status of the power source used for power supply in the second power supply module is greater than or equal to the health status of the backup power source. When the power source in the second power supply module is connected to the load, it is used for power supply; when the power source in the second power supply module is not connected to the load, it is used for backup. By configuring the power source for power supply and the backup power source in the second power supply module, the insufficient power supply voltage of the second power supply module caused by abnormal power source failure is reduced, thereby improving the reliability of the second power supply module.

[0265] Optionally, the power supply in the second power supply module is used for backup. This can be understood as the power supply not being used for power supply. When the power supply in the second power supply module fails, the backup power supply can be used to provide power.

[0266] Optionally, the first power supply module is used to supply power to the second power supply.

[0267] In one possible embodiment, the voltage of the second power supply is the same as the second voltage of the second power supply module.

[0268] It is understandable that the power supply in the second power supply module includes a second power supply and a first power supply connected to the second power supply module. The second power supply is sufficient to meet the power supply voltage requirements of the second power supply module. When the second power supply is used for power supply, the first power supply connected to the second power supply module can serve as a backup power supply, improving the reliability of the power supply to the second power supply module.

[0269] Optionally, the second power source can be a lead-acid battery or a lithium-ion battery.

[0270] In one possible embodiment, the power supply circuit is connected to the first load and the second load respectively; the first power supply in the second power supply module is used to supply power to the first load, and the second power supply is used to supply power to the second load.

[0271] It is understandable that when the second power source in the second power supply module is used to supply power, the second power source is used to supply power to the second load. When the first power source connected to the second power supply module is used to supply power, the first power source is used to supply power to the first load.

[0272] Optionally, the number of first power supplies connected to the second power supply module is one or more. When the health status of the second power supply is greater than or equal to the health status of one or more first power supplies connected to the second power supply module, the second power supply is used to power the second load; when the health status of the first power supply is greater than or equal to the health status of the second power supply and the health status of other first power supplies in the second power supply module, the first power supply is used to power the first load.

[0273] Optionally, the first load includes loads with high safety requirements such as the automatic driving controller and the steering controller, and the second load includes loads with high safety requirements in the first load and loads with low safety requirements such as the wiper system and the headlight system.

[0274] In one possible embodiment, the power supply control method further includes:

[0275] If the health of the third power supply among the multiple first power supplies is lower than the health of the other power supplies among the multiple first power supplies, the first switch in the control power supply circuit is turned off, so that the third power supply is disconnected from the first power supply module and connected to the second power supply module.

[0276] It is understandable that when the health of the third power supply is lower than that of the other power supplies among the multiple first power supplies, the health of the third power supply is the power supply with the lower health among the first power supplies connected to the first power supply module. The power supply with the lower health is disconnected from the first power supply module to reduce the participation of the power supply with the lower health in the power supply module and reduce the rate of decay of the health of the power supply, thereby balancing the health of the multiple first power supplies.

[0277] Optionally, each first power source corresponds to a switch, and the first power source is connected to the first power supply module through its corresponding switch. For specific implementation details, please refer to the corresponding description above, which will not be repeated here.

[0278] Optionally, when the third power supply is connected to the second power supply module, the power supply with the higher health status among the first power supplies connected to the second power supply module is disconnected from the second power supply module and connected to the first power supply module, so that the power supply voltage of the power supply in the first power supply module is the first voltage.

[0279] In one possible embodiment, the power supply control method further includes:

[0280] If the health status of the third power supply is greater than or equal to the health status of the power supply in the second power supply module, the second switch in the power supply circuit is closed so that the third power supply can be used for power supply.

[0281] It is understandable that when the health of the third power supply is greater than or equal to the health of the power supply in the second power supply module, the third power supply is the power supply with the higher health in the second power supply module. By using the power supply with the higher health, the rate of decline of the health of the power supply with the lower health in the second power supply module is reduced, thereby balancing the health of the power supplies in the second power supply module.

[0282] Optionally, when the third power supply is used for power supply and the health of the third power supply is lower than the health of any power supply in the second power supply module, the second switch is controlled to be disconnected so that the third power supply is used for backup, and a power supply with a health higher than the health of the third power supply is controlled to be used for power supply.

[0283] Optionally, each power source connected to the second power supply module has a corresponding switch. By controlling the switch to close or open, the power source connected to the second power supply module can be controlled for power supply or backup. For specific implementation details, please refer to the corresponding description above, which will not be repeated here.

[0284] The methods of the embodiments of this application have been described in detail above. The following provides an apparatus for implementing any one of the methods in the embodiments of this application. For example, an apparatus is provided that includes a unit (or means) for implementing the steps performed by the device in any of the above methods.

[0285] Please refer to Figure 9, which is a structural schematic diagram of a power supply control device provided in an embodiment of this application.

[0286] As shown in Figure 7, the power supply control device 90 may include a communication unit 901 and a processing unit 902. The communication unit 901 and the processing unit 902 may be software, hardware, or a combination of both.

[0287] The communication unit 901 can implement sending and / or receiving functions, and can also be described as a transceiver unit. The communication unit 901 can also be a unit integrating an acquisition unit and a sending unit, wherein the acquisition unit is used to implement the receiving function, and the sending unit is used to implement the sending function. Optionally, the communication unit 901 can be used to receive information sent by other devices, and can also be used to send information to other devices.

[0288] In one possible design, the power supply control device 90 may correspond to the power supply control device in the method embodiment shown in FIG8 above. For example, the power supply control device 90 may be an electronic device or a chip within an electronic device. The power supply control device 90 may include units for performing the operations performed by the power supply control device in the method embodiment shown in FIG8 above, and each unit in the power supply control device 90 is respectively for implementing the operations performed by the power supply control device in the method embodiment shown in FIG8 above. The descriptions of each unit are as follows:

[0289] The processing unit 902 is used to control the first power supply in the power supply circuit to be connected to the first power supply module or the second power supply module, so as to realize that the power supply voltage of the first power supply module is the first voltage and the power supply voltage of the second power supply module is the second voltage.

[0290] In one possible implementation, the device further includes a communication unit 901;

[0291] The communication unit 901 is used to send control commands;

[0292] The processing unit 902 is specifically used to control the first power supply in the power supply circuit to connect to the first power supply module or the second power supply module through control commands, so as to realize that the power supply voltage of the first power supply module is the first voltage and the power supply voltage of the second power supply module is the second voltage.

[0293] Regarding the communication unit 901 and processing unit 902 described in this design, the steps they perform can be referred to the implementation method corresponding to the power supply control device in the method embodiment shown in FIG8 above.

[0294] Regarding the technical effects of the implementation methods performed by the communication unit 901 and the processing unit 902 described in this design, please refer to the description of the technical effects corresponding to the method embodiment shown in FIG8 above.

[0295] According to embodiments of this application, the various units in the device shown in FIG9 can be individually or entirely merged into one or more other units, or some of the units can be further divided into multiple functionally smaller units. This achieves the same operation without affecting the technical effect of the embodiments of this application. The above units are based on logical function division. In practical applications, the function of one unit can also be implemented by multiple units, or the function of multiple units can be implemented by one unit. In other embodiments of this application, the electronic device may also include other units. In practical applications, these functions can also be implemented with the assistance of other units, and can be implemented collaboratively by multiple units.

[0296] It should be noted that the implementation of each unit can also refer to the corresponding description of the method embodiment shown in Figure 8 above.

[0297] In the power supply control device 90 described in Figure 9, the first power source in the first power supply module can be controlled to be connected to the first power supply module or the second power supply module, so as to realize that the power supply voltage of the first power supply module is the first voltage and the power supply voltage of the second power supply module is the second voltage, thereby ensuring the stability of the power supply of the first power supply module and the second power supply module.

[0298] If the aforementioned power supply control device 90 can be an electronic device, please refer to the structural schematic diagram of the electronic device shown in Figure 10.

[0299] It should be understood that the electronic device 100 shown in FIG8 is only an example. The electronic device in the embodiments of this application may also include other components, or include components that have similar functions to the various components in FIG10, or may not include all the components in FIG10.

[0300] The electronic device 100 includes a transceiver interface 1001 and at least one processor 1002.

[0301] The electronic device 100 can correspond to a power supply control device. The transceiver interface 1001 is used to transmit and receive signals, and at least one processor 1002 executes program instructions to enable the electronic device 100 to implement the corresponding process of the method executed by the corresponding device in the above method embodiments.

[0302] In one possible design, the electronic device 100 may correspond to the power supply control device in the method embodiment shown in FIG8 above. For example, the electronic device 100 may be a power supply control device or a chip within the power supply control device. The electronic device 100 may include components for performing the operations performed by the power supply control device in the method embodiment above, and each component in the electronic device 100 is respectively for implementing the operations performed by the power supply control device in the method embodiment above. Specifically, it may be as follows:

[0303] The processor 1002 is used to control the first power supply in the power supply circuit to be connected to the first power supply module or the second power supply module, so as to realize that the power supply voltage of the first power supply module is the first voltage and the power supply voltage of the second power supply module is the second voltage.

[0304] In one possible implementation, the device further includes a transceiver interface 1001;

[0305] This transceiver interface 1001 is used to send control commands;

[0306] The processor 1002 is specifically used to control the first power supply in the power supply circuit to connect to the first power supply module or the second power supply module through control instructions, so as to realize that the power supply voltage of the first power supply module is the first voltage and the power supply voltage of the second power supply module is the second voltage.

[0307] Regarding the transceiver interface 1001 and at least one processor 1002 described in this design, the steps performed can be referred to the implementation corresponding to the power supply control device in the method embodiment shown in FIG8 above.

[0308] For the technical effects of the implementation methods performed by the transceiver interface 1001 and at least one processor 1002 described in this design, please refer to the description of the technical effects corresponding to the method embodiment shown in FIG8 above.

[0309] In the electronic device 100 described in Figure 8, the first power source in the first power supply module can be controlled to be connected to the first power supply module or the second power supply module, thereby enabling the first power source in the first power supply module to be connected to the second power supply module and ensuring the stability of the power supply of the second power supply module.

[0310] If the power supply control device 90 mentioned above can be a chip or a chip system, please refer to the structural schematic diagram of the chip shown in Figure 11.

[0311] As shown in Figure 11, chip 110 includes processor 1101 and interface 1102. The number of processors 1101 can be one or more, and the number of interfaces 1102 can be multiple. It should be noted that the functions of processor 1101 and interface 1102 can be implemented through hardware design, software design, or a combination of both; no restrictions are placed here.

[0312] Optionally, the chip 110 may also include a memory 1103 for storing necessary program instructions and data.

[0313] In this application, processor 1101 can be used to call the implementation program of the power supply control method provided in one or more embodiments of this application in the power supply control device from memory 1103, and execute the instructions included in the program. Interface 1102 can be used to output the execution result of processor 1101. In this application, interface 1102 can be specifically used to output various messages or information of processor 1101.

[0314] The power supply control method provided by one or more embodiments of this application can be referred to the various embodiments shown in FIG8 above, which will not be repeated here.

[0315] The processor in this application embodiment can be a central processing unit (CPU), but it can also be other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor can be a microprocessor or any conventional processor.

[0316] The memory in this application embodiment is used to provide storage space, in which data such as operating system and computer programs can be stored. The memory includes, but is not limited to, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM), or compact disc read-only memory (CD-ROM).

[0317] According to the method provided in the embodiments of this application, the embodiments of this application also provide a computer-readable storage medium storing a computer program. When the computer program is run on one or more processors, it can implement the method shown in FIG8.

[0318] According to the method provided in the embodiments of this application, the embodiments of this application also provide a computer program product, which includes a computer program. When the computer program runs on a processor, it can implement the method shown in FIG8.

[0319] According to the method provided in the embodiments of this application, the embodiments of this application also provide a power supply control system, which includes a power supply control device and a power supply circuit as shown in any of Figures 4 to 7 above; wherein, the power supply control device is used to execute the method executed by the power supply control device above.

[0320] According to the method provided in the embodiments of this application, the embodiments of this application also provide a power supply control system, which includes at least one power supply control device 90, or electronic device 100, or chip 110.

[0321] This application embodiment also provides a terminal, which includes at least one power supply control device 70, or electronic device 80, or chip 90, or the aforementioned power supply control system.

[0322] Optionally, the terminal can be a means of transportation, such as a car, truck, aircraft, drone, slow transport vehicle, spacecraft, or ship, or any other possible means of transportation used in any possible scenario. This application embodiment does not limit this.

[0323] Optionally, the terminal is used to implement the method shown in Figure 8 above.

[0324] This application also provides a processing apparatus, including a processor and an interface; the processor is used to execute the method in any of the above method embodiments.

[0325] It should be understood that the above-described processing device can be a chip. The units in the various device embodiments and the electronic devices in the method embodiments correspond completely, with corresponding modules or units executing corresponding steps. For example, the communication unit (transceiver) executes the receiving or sending steps in the method embodiments, while other steps besides sending and receiving can be executed by the processing unit (processor). The specific functions of each unit can be found in the corresponding method embodiments. There can be one or more processors.

[0326] It is understood that in the embodiments of this application, the electronic device may perform some or all of the steps in the embodiments of this application. These steps or operations are merely examples, and the embodiments of this application may also perform other operations or variations thereof. Furthermore, the steps may be performed in different orders as presented in the embodiments of this application, and it is not necessarily necessary to perform all the operations in the embodiments of this application.

[0327] In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between apparatuses or units may be electrical, mechanical, or other forms.

[0328] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0329] In addition, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0330] If the aforementioned functions are implemented as software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the contributing part, or a portion of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0331] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application.

Claims

1. A power supply circuit, characterized in that, The power supply circuit includes: A first power supply module and a second power supply module; the first power supply module includes a plurality of first power sources, the plurality of first power sources being used to connect to the first power supply module or the second power supply module, the power supply voltage of the first power supply module being a first voltage, and the power supply voltage of the second power supply module being a second voltage.

2. The power supply circuit according to claim 1, characterized in that, The first power source is located at the edge of the first power supply module.

3. The power supply circuit according to claim 1 or 2, characterized in that, The voltage of the first power supply is the same as the second voltage of the second power supply module.

4. The power supply circuit according to any one of claims 1 to 3, characterized in that, The power supply circuit also includes: a control module; The control module is used to obtain the health status of the plurality of first power supplies and determine whether the first power supply is connected to the first power supply module or the second power supply module based on the health status of the first power supply.

5. The power supply circuit according to claim 4, characterized in that, The control module connects the first power supply whose health level is less than a first threshold among the plurality of first power supplies to the second power supply module.

6. The power supply circuit according to claim 4 or 5, characterized in that, The health status includes any one or more of the following: full-load voltage, charging power and / or charging current, discharging power and / or discharging current, feed voltage, and power supply capacity.

7. The power supply circuit according to any one of claims 1 to 6, characterized in that, The second power supply module also includes a second power source, and the second power source and the first power source connected to the second power supply module are used for power supply or backup; the health of the power source used for power supply in the second power supply module is greater than or equal to the health of the power source used for backup.

8. The power supply circuit according to claim 7, characterized in that, The voltage of the second power supply is the same as the second voltage of the second power supply module.

9. The power supply circuit according to claim 7 or 8, characterized in that, The power supply circuit is applied to the first load and the second load; the first power source in the second power supply module is used to supply power to the first load, and the second power source is used to supply power to the second load.

10. The power supply circuit according to any one of claims 4 to 6, characterized in that, The power supply circuit includes a switching module, the switching module includes a first switch; the plurality of first power supplies include a third power supply. The control module is connected to the first switch, and the third power source is connected to the first power supply module through the first switch. If the health status of the third power supply is lower than that of the other power supplies among the plurality of first power supplies, the control module controls the first switch to open, so that the third power supply is disconnected from the first power supply module and connected to the second power supply module.

11. The power supply circuit according to claim 10, characterized in that, The switch module also includes a second switch; The second switch is connected to the third power supply and the control module, respectively. When the health status of the third power supply is greater than or equal to the health status of the power supply in the second power supply module, the control module controls the second switch to close so that the third power supply can be used for power supply.

12. A power supply control method, characterized in that, The power supply control method, applied to a power supply circuit as described in any one of claims 1 to 11, comprises: Multiple first power supplies in the first power supply module of the power supply circuit are connected to the first power supply module or the second power supply module of the power supply circuit. The power supply voltage of the first power supply module is a first voltage, and the power supply voltage of the second power supply module is a second voltage.

13. The power supply control method according to claim 12, characterized in that, The first power source is located at the edge of the first power supply module.

14. The power supply control method according to claim 12 or 13, characterized in that, The voltage of the first power supply is the same as the second voltage of the second power supply module.

15. The power supply control method according to any one of claims 12 to 14, characterized in that, The power supply control method further includes: The health status of the plurality of first power supplies is obtained, and the first power supply is connected to the first power supply module or the second power supply module based on the health status of the first power supply.

16. The power supply control method according to claim 15, characterized in that, The power supply control method further includes: Connect the first power supply whose health level is less than a first threshold from among the plurality of first power supplies to the second power supply module.

17. The power supply control method according to claim 15 or 16, characterized in that, The health status includes any one or more of the following: full-load voltage, charging power and / or charging current, discharging power and / or discharging current, feed voltage, and power supply capacity.

18. The power supply control method according to any one of claims 12 to 17, characterized in that, The second power supply in the second power supply module and the first power supply connected to the second power supply module are used for power supply or backup; the health of the power supply used for power supply in the second power supply module is greater than or equal to the health of the power supply used for backup.

19. The power supply control method according to claim 18, characterized in that, The voltage of the second power supply is the same as the second voltage of the second power supply module.

20. The power supply control method according to claim 18 or 19, characterized in that, The power supply circuit is connected to the first load and the second load respectively; the first power source in the second power supply module is used to supply power to the first load, and the second power source is used to supply power to the second load.

21. The power supply control method according to any one of claims 15 to 17, characterized in that, The power supply control method further includes: If the health status of the third power supply among the plurality of first power supplies is lower than that of the other power supplies among the plurality of first power supplies, the first switch in the power supply circuit is controlled to open, so that the third power supply is disconnected from the first power supply module and connected to the second power supply module.

22. The power supply control method according to claim 21, characterized in that, The power supply control method further includes: If the health status of the third power supply is greater than or equal to the health status of the power supply in the second power supply module, the second switch in the power supply circuit is controlled to close so that the third power supply can be used for power supply.

23. A vehicle, characterized in that, Includes the power supply circuit as described in any one of claims 1 to 11.

24. A terminal, characterized in that, Includes the power supply circuit as described in any one of claims 1 to 11.

25. A computer-readable storage medium, characterized in that, The computer-readable storage medium is used to store a computer program, which, when executed, performs the method as described in any one of claims 12 to 22.

26. A computer program product, characterized in that, The computer program product includes a computer program, which, when executed, performs the method as described in any one of claims 12 to 22.

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