Vehicle load power supply control method and load control system

Abstract

The application provides a vehicle load power supply control method and a load control system, and relates to the field of vehicle power supply control.The load control system ingeniously integrates various power supply components of a vehicle in a target power supply channel and a target load channel through a load controller, combines a plurality of power supply control strategies generated according to a vehicle state, an automatic driving level and a load power supply demand, and controls related power supply equipment to supply power to load equipment according to the power supply control strategies by using various switches built in the load controller, so that the low-voltage power supply demand of a vehicle with a high automatic driving level can be met.

Description

Technical Field

[0001] This invention relates to the field of vehicle power supply control, and in particular to a vehicle load power supply control method and load control system. Background Technology

[0002] As vehicle autonomous driving technology gradually advances to Level 3 and Level 4, the power supply requirements for sensors and computing modules involved in automatic assistance and autonomous driving are becoming increasingly demanding. Reliable redundant power supplies are needed in addition to the main power supply to meet these requirements. While existing technologies provide redundant power supplies in some vehicles, they cannot meet the power supply requirements of all loads related to automatic assistance and autonomous driving. For example, most high-voltage thermal management loads are still single-power-supply loads. A power supply failure can lead to the failure of their corresponding thermal management systems, resulting in load failure.

[0003] Furthermore, the existing dual-power redundant power supply schemes are equipped with a single DC-DC power supply, which is insufficient to meet the power supply requirements of autonomous vehicles. For example, when the DC-DC power supply fails, the vehicle can only rely on the battery for power supply, which is insufficient to support the power consumption of various sensors and computing modules during autonomous driving. Summary of the Invention

[0004] In view of this, the purpose of the present invention is to provide a vehicle load power supply control method and a load control system. The load control system cleverly integrates various power supply components of the vehicle in the target power supply channel and the target load channel through a load controller. It combines various power supply control strategies generated by the vehicle status, autonomous driving level and load power supply requirements, and uses various switches built into the load controller to control the relevant power supply equipment to supply power to the load equipment according to the power supply control strategies. This can meet the low-voltage power supply requirements of vehicles with higher autonomous driving levels, thereby solving the above-mentioned problems existing in the prior art.

[0005] In a first aspect, embodiments of the present invention provide a vehicle load power supply control method, which is applied to a vehicle load control system; wherein the load control system includes: a target power supply channel, a target load channel, and a load controller; the method includes: Determine the load power supply parameters corresponding to the target power supply channel and the load demand parameters corresponding to the target load channel; The power supply control strategy corresponding to the target power supply channel supplying power to the target load channel is determined by the vehicle status parameters, driving level parameters, load power supply parameters, and load demand parameters. The switching strategy of the load controller is determined based on the power supply control strategy, and the switching strategy is used to control the load controller to connect the power supply equipment in the target power supply channel to the load equipment in the target load channel. Power supply control strategies are used to control the power supply equipment to supply power to the load equipment.

[0006] Optionally, the steps of determining the load power supply parameters corresponding to the target power supply channel and the load demand parameters corresponding to the target load channel include: The vehicle comprises a basic load power supply component, a first safety load power supply component, a second safety load power supply component, and an output power supply component; wherein, the load controller is connected to the basic load power supply component, the first safety load power supply component, the second safety load power supply component, and the output power supply component respectively through multiple built-in switches; The target power supply channel is determined based on the base load power supply component, the first safe load power supply component, and the second safe load power supply component, and the target load channel is determined based on the base load power supply component, the first safe load power supply component, the second safe load power supply component, and the output power supply component; The first DC power supply module included in the basic load power supply component, the first battery power supply module included in the first safe load power supply component, and the second DC power supply module and the second battery power supply module included in the second safe load power supply component are obtained. The load power supply parameters are determined based on the power supply parameters corresponding to the first DC power supply module, the first battery power supply module, the second DC power supply module and the second battery power supply module. Obtain the basic load, first domain controller and second domain controller included in the basic load power supply component, the safe master load and first domain controller included in the first safe load power supply component, and the safe slave load and second domain controller included in the second safe load power supply component. Determine the load requirement parameters based on the corresponding operating parameters of the basic load, safe master load, safe slave load, first domain controller and second domain controller.

[0007] Optionally, the steps for determining the power supply control strategy corresponding to supplying power from the target power supply channel to the target load channel based on vehicle status parameters, driving level parameters, load power supply parameters, and load demand parameters include: When the vehicle is determined to be in a parked state using vehicle status parameters, the first sleep command corresponding to the first DC power supply module and the battery power supply command corresponding to the first battery power supply module and the second battery power supply module are determined based on the load power supply parameters and load demand parameters, respectively. Obtain the driving level parameters corresponding to the current vehicle, and determine the corresponding autonomous driving level of the vehicle based on the driving level parameters; If the autonomous driving level is greater than the preset level threshold, the DC power supply command corresponding to the second DC power supply module is determined based on the load power supply parameters and load demand parameters; if the autonomous driving level is not greater than the level threshold, the second sleep command corresponding to the second DC power supply module is determined based on the load power supply parameters and load demand parameters. The power supply control strategy corresponding to the target power supply channel supplying power to the target load channel is determined based on the first sleep command, battery power supply command, DC power supply command, and second sleep command.

[0008] Optionally, the steps for determining the power supply control strategy corresponding to supplying power from the target power supply channel to the target load channel based on vehicle status parameters, driving level parameters, load power supply parameters, and load demand parameters include: When the vehicle is in driving state, the first DC power supply command corresponding to the first DC power supply module and the battery power supply command corresponding to the first battery power supply module and the second battery power supply module are determined based on the load power supply parameters and the load demand parameters, respectively. Obtain the driving level parameters corresponding to the current vehicle, and determine the corresponding autonomous driving level of the vehicle based on the driving level parameters; If the autonomous driving level exceeds the preset threshold, the sleep command corresponding to the second DC power supply module is determined based on the load power supply parameters and load demand parameters; if the autonomous driving level does not exceed the threshold, the second DC power supply command corresponding to the second DC power supply module is determined based on the load power supply parameters and load demand parameters. The power supply control strategy corresponding to the target power supply channel supplying power to the target load channel is determined based on the first DC power supply command, the battery power supply command, the hibernation command, and the second DC power supply command.

[0009] Optionally, the steps for determining the power supply control strategy corresponding to supplying power from the target power supply channel to the target load channel based on vehicle status parameters, driving level parameters, load power supply parameters, and load demand parameters include: When the vehicle status parameters determine that the basic load or the first DC power supply module is in a fault state, the battery power supply command corresponding to the first battery power supply module and the second battery power supply module is determined based on the load power supply parameters and the load demand parameters. Obtain the driving level parameters corresponding to the current vehicle, and determine the corresponding autonomous driving level of the vehicle based on the driving level parameters; If the autonomous driving level exceeds the preset threshold, the DC power supply command corresponding to the second DC power supply module is determined based on the load power supply parameters and load demand parameters; if the autonomous driving level does not exceed the threshold, the sleep command corresponding to the second DC power supply module is determined based on the load power supply parameters and load demand parameters. The power supply control strategy is determined based on battery power supply command, DC power supply command, and sleep command when the target power supply channel supplies power to the target load channel.

[0010] Optionally, the steps for determining the power supply control strategy corresponding to supplying power from the target power supply channel to the target load channel based on vehicle status parameters, driving level parameters, load power supply parameters, and load demand parameters include: When the vehicle status parameters determine that the first battery power supply module or the second battery power supply module is in an open circuit state, the normal power supply module in the first battery power supply module and the second battery power supply module is determined, and the battery power supply command corresponding to the normal power supply module is determined based on the load power supply parameters and load demand parameters. Obtain the driving level parameters corresponding to the current vehicle, and determine the corresponding autonomous driving level of the vehicle based on the driving level parameters; If the autonomous driving level exceeds the preset threshold, the DC power supply command corresponding to the first DC power supply module and the second DC power supply module is determined based on the load power supply parameters and load demand parameters; if the autonomous driving level does not exceed the threshold, the sleep command corresponding to the first DC power supply module and the second DC power supply module is determined based on the load power supply parameters and load demand parameters. The power supply control strategy is determined based on battery power supply command, DC power supply command, and sleep command when the target power supply channel supplies power to the target load channel.

[0011] Optionally, the steps for determining the power supply control strategy corresponding to supplying power from the target power supply channel to the target load channel based on vehicle status parameters, driving level parameters, load power supply parameters, and load demand parameters include: When the vehicle status parameters determine that the first battery power supply module is in a short circuit state, the first DC power supply command corresponding to the first DC power supply module and the battery power supply command corresponding to the second battery power supply module are determined based on the load power supply parameters and the load demand parameters, respectively. Obtain the driving level parameters corresponding to the current vehicle, and determine the corresponding autonomous driving level of the vehicle based on the driving level parameters; If the autonomous driving level exceeds the preset threshold, the second DC power supply command corresponding to the second DC power supply module is determined based on the load power supply parameters and load demand parameters; if the autonomous driving level does not exceed the threshold, the sleep command corresponding to the second DC power supply module is determined based on the load power supply parameters and load demand parameters. The power supply control strategy corresponding to the target power supply channel supplying power to the target load channel is determined based on the first DC power supply command, the battery power supply command, the second DC power supply command, and the sleep command.

[0012] Optionally, the steps for determining the power supply control strategy corresponding to supplying power from the target power supply channel to the target load channel based on vehicle status parameters, driving level parameters, load power supply parameters, and load demand parameters include: When the vehicle status parameters determine that the second DC power supply module or the second battery power supply module is in a short circuit state, the normal power supply module in the second DC power supply module and the second battery power supply module is determined, and the first DC power supply command corresponding to the first DC power supply module and the first battery power supply command corresponding to the first battery power supply module are determined based on the load power supply parameters and the load demand parameters, respectively. Obtain the driving level parameters corresponding to the current vehicle, and determine the corresponding autonomous driving level of the vehicle based on the driving level parameters; If the autonomous driving level exceeds the preset level threshold, the second power supply command corresponding to the normal power supply module is determined based on the load power supply parameters and load demand parameters; if the autonomous driving level does not exceed the level threshold, the sleep command corresponding to the normal power supply module is determined based on the load power supply parameters and load demand parameters. The power supply control strategy corresponding to the target power supply channel supplying power to the target load channel is determined based on the first DC power supply command, the first battery power supply command, the second power supply command, and the sleep command.

[0013] Optionally, the steps for determining the power supply control strategy corresponding to supplying power from the target power supply channel to the target load channel based on vehicle status parameters, driving level parameters, load power supply parameters, and load demand parameters include: When the vehicle status parameters determine that the second DC power supply module is in a fault state, the first DC power supply command corresponding to the first DC power supply module and the battery power supply command corresponding to the first battery power supply module are determined based on the load power supply parameters and the load demand parameters, respectively. Obtain the driving level parameters corresponding to the current vehicle, and determine the corresponding autonomous driving level of the vehicle based on the driving level parameters; If the autonomous driving level exceeds the preset threshold, the sleep command corresponding to the second DC power supply module is determined based on the load power supply parameters and load demand parameters. The power supply control strategy corresponding to the target power supply channel supplying power to the target load channel is determined based on the first DC power supply command, battery power supply command, and sleep command.

[0014] Secondly, the present invention provides a load control system, which includes: a target power supply channel, a target load channel, and a load controller; wherein the load controller is connected to the target load channel and the load controller respectively through a plurality of built-in switches; the load control system adopts the vehicle load power supply control method mentioned in the first aspect in the process of controlling the power supply to the target vehicle load.

[0015] Thirdly, embodiments of the present invention also provide an electronic device, which includes a processor and a memory, wherein the memory stores computer-executable instructions that can be executed by the processor, and the processor executes the computer-executable instructions to implement the steps of the vehicle load power supply control method provided in the first aspect.

[0016] Fourthly, embodiments of the present invention also provide a storage medium storing computer-executable instructions, which, when invoked and executed by a processor, cause the processor to implement the steps of the vehicle load power supply control method provided in the first aspect.

[0017] This invention provides a vehicle load power supply control method and load control system. The load control system includes a target power supply channel, a target load channel, and a load controller. In controlling the power supply to the target vehicle load using this load control system, the method first determines the load power supply parameters and load demand parameters corresponding to the target power supply channel. Then, it determines the power supply control strategy corresponding to the target power supply channel supplying power to the target load channel based on the vehicle's status parameters, driving level parameters, load power supply parameters, and load demand parameters. Subsequently, it determines the on / off strategy of the load controller based on the power supply control strategy and uses the on / off strategy to control the load controller to connect the power supply equipment in the target power supply channel to the load equipment in the target load channel. Finally, it uses the power supply control strategy to control the power supply equipment to supply power to the load equipment. This load control system cleverly integrates various power supply components of the vehicle in the target power supply channel and the target load channel through the load controller. It combines various power supply control strategies generated by the vehicle status, autonomous driving level, and load power supply demand, and uses various switches built into the load controller to control the relevant power supply equipment to supply power to the load equipment according to the power supply control strategy, thus meeting the low-voltage power supply requirements of vehicles with higher autonomous driving levels.

[0018] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention are realized and obtained in accordance with the structures particularly pointed out in the description, claims and drawings.

[0019] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0020] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0021] Figure 1 A flowchart of a vehicle load power supply control method provided in an embodiment of the present invention; Figure 2 This is a flowchart of step S101 in a vehicle load power supply control method provided in an embodiment of the present invention; Figure 3 This is a flowchart of step S102 in a vehicle load power supply control method provided in an embodiment of the present invention, when the vehicle is in a parked state; Figure 4 This is a flowchart of step S102 in a vehicle load power supply control method provided in an embodiment of the present invention, when the vehicle is in a driving state; Figure 5 This is a flowchart of step S102 in a vehicle load power supply control method provided by an embodiment of the present invention, when the base load or the first DC power supply module is in a fault state; Figure 6 This is a flowchart of step S102 in a vehicle load power supply control method provided in an embodiment of the present invention, when the first battery power supply module or the second battery power supply module is in an open circuit state; Figure 7 This is a flowchart of step S102 in a vehicle load power supply control method provided by an embodiment of the present invention, when the first battery power supply module is in a short-circuit state; Figure 8 This is a flowchart of step S102 in a vehicle load power supply control method provided by an embodiment of the present invention, when the second DC power supply module or the second battery power supply module is in a short circuit state; Figure 9 This is a flowchart of step S102 in a vehicle load power supply control method provided by an embodiment of the present invention when the second DC power supply module is in a fault state; Figure 10 This is a schematic diagram of a vehicle load power supply control system provided in an embodiment of the present invention; Figure 11 This is a schematic diagram of another vehicle load power supply control system provided in an embodiment of the present invention; Figure 12 This is a schematic diagram of the structure of an electronic device provided in an embodiment of the present invention.

[0022] icon: 100 - Load controller; 200 - Basic load power supply component; 300 - First safety load power supply component; 400 - Second safety load power supply component; 500 - Output power supply component; 110 - First isolation main switch; 120 - Second isolation main switch; 130 - Third isolation main switch; 140 - First sub-channel switch; 150 - Second sub-channel switch; 160 - Third sub-channel switch; 210 - First DC-DC converter; 220 - First fuse box; 230 - Basic load; 240 - First domain controller; 250 - Second domain controller; 310 - First battery module; 320 - First safety load; 410 - Second battery module; 420 - Second safety load; 430 - Second DC-DC converter; 440 - Second fuse box; 510 - Functional availability requirements load and rear-collision safety load; 101 - Processor; 102 - Memory; 103 - Bus; 104 - Communication interface. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] To facilitate understanding of this embodiment, a vehicle load power supply control method disclosed in this invention will first be introduced. Specifically, this method is applied to a vehicle load control system; wherein, the load control system includes: a target power supply channel, a target load channel, and a load controller. Based on this, as... Figure 1 As shown, the vehicle load power supply control method includes: Step S101: Determine the load power supply parameters corresponding to the target power supply channel and the load demand parameters corresponding to the target load channel.

[0025] The core objective of this step is to obtain key parameters on both the power supply and load sides, providing data support for subsequent strategy development. The target power supply channel specifically refers to the source channel that provides electrical energy to the load, ensuring power supply to the vehicle's regular low-voltage loads and providing redundant power supply for the core loads of autonomous driving. The target load channel is the end-to-end channel for power transmission to the load, and can be supplemented with output power supply components connecting the load devices.

[0026] The parameters to be determined fall into two categories: first, the load power supply parameters of the target power supply channel, including core indicators such as the stability of the power supply voltage, the upper limit of the output current, the power supply continuity, and the fault history of each channel; second, the load demand parameters of the target load channel, specifically covering key requirements such as the rated power, minimum power supply voltage threshold, power supply priority, and instantaneous power fluctuation range of each load device (such as autonomous driving sensors, computing modules, high-voltage thermal management systems, etc.). By comprehensively collecting these two types of parameters, a matching benchmark between power supply capacity and load demand can be established.

[0027] Step S102: Determine the power supply control strategy corresponding to the target power supply channel supplying power to the target load channel by using the vehicle status parameters, driving level parameters, load power supply parameters and load demand parameters.

[0028] This step is the core decision-making stage of power supply control, requiring a comprehensive assessment of vehicle operating status, autonomous driving level, and supply and demand parameters to formulate a power supply strategy that balances safety and economy. First, vehicle status parameters include vehicle fault diagnosis information (such as battery charge and DC-DC module operating status), driving status (such as vehicle speed and braking signals), and energy status (such as remaining high-voltage battery charge). Driving level parameters specify the current autonomous driving level of the vehicle (such as Level 3 conditional autonomous driving or Level 4 highly automated driving), with significantly different requirements for redundancy in load power supply depending on the level.

[0029] During parameter fusion, multi-dimensional decision-making models can be constructed as needed. For example, when the vehicle is in L4 autonomous driving mode, if the power supply parameters of the first safety load power supply component are stable and the load demand parameters of the autonomous driving core computing module are high, the strategy will prioritize ensuring the parallel power supply of the two safety channels. If voltage fluctuations are detected in the basic power supply channel and the load demand is for low-priority conventional equipment, the strategy will tend to switch to the redundant channel to ensure the core load while restricting the power supply to non-core loads. In simple terms, the final generated power supply control strategy clearly defines key instructions such as "which type of power supply channel supplies which type of load channel", "power supply allocation ratio", and "fault switching trigger conditions".

[0030] Step S103: Determine the on / off strategy of the load controller based on the power supply control strategy, and use the on / off strategy to control the load controller to connect the power supply equipment in the target power supply channel to the load equipment in the target load channel.

[0031] This step translates the decision-making strategy into hardware execution instructions. The core of this process is establishing an effective connection between the power supply channel and the load channel through the switching control of the load controller. The load controller can have various types of built-in switches, such as an isolating main switch that controls the on / off state of the main power supply link to ensure power supply safety; and sub-channel switches that correspond to the branch links between each power supply channel and the load channel, enabling fine-grained control.

[0032] In practice, the power supply control strategy is first broken down into on / off strategies. For example, if the strategy explicitly states that "the first safe load power supply component supplies power to the relevant automatic driving calculation module of the output power supply component," then the load controller will control the sub-channel switch corresponding to the first safe channel in the load controller to close, while ensuring that the isolation main switch is in the conducting state and other non-associated sub-channel switches remain open to avoid power supply conflicts. Through precise control of each on / off state, directional connection between the power supply channel and the load device can be achieved, ensuring on-demand power transmission.

[0033] Step S104: Use power supply control strategy to control the power supply equipment to supply power to the load equipment.

[0034] This step is the final execution stage of power supply control. After the power supply link is established, the power supply control strategy is used to achieve precise delivery and dynamic regulation of electrical energy. The load controller sends power supply commands to the power supply equipment (such as DC-DC converters and redundant power modules) in the target power supply channel, specifying the output parameters such as power supply voltage and current, to ensure that the power supply equipment outputs electrical energy that meets the load requirements.

[0035] Optionally, step S101, which determines the load power supply parameters corresponding to the target power supply channel and the load demand parameters corresponding to the target load channel, is as follows: Figure 2 As shown, it includes: Step S201: Determine the basic load power supply component, the first safe load power supply component, the second safe load power supply component, and the output power supply component included in the vehicle; wherein, the load controller is connected to the basic load power supply component, the first safe load power supply component, the second safe load power supply component, and the output power supply component respectively through multiple built-in switches.

[0036] The core of this step is to identify the core components and control logic of the vehicle's power supply system, and precisely pinpoint all components involved in power supply and load control. The components to be identified fall into four categories: first, the basic load power supply component (the core unit responsible for supplying power to the vehicle's conventional low-voltage loads); second, the first safety load power supply component (the primary redundant power supply unit for the core loads of autonomous driving); third, the second safety load power supply component (the secondary redundant power supply unit for the core loads of autonomous driving); and fourth, the output power supply component (the power transmission terminal unit directly connected to the load equipment).

[0037] At the same time, it is necessary to clarify the control relationship between components: the load controller, as the core control node, establishes electrical connections and signal control links with the above four types of components through multiple built-in independent switches (including isolation main switches and dedicated switches for each sub-channel), so as to achieve precise control of the power supply status of each component. This connection relationship is the hardware foundation for subsequent parameter acquisition and strategy execution.

[0038] Step S202: Determine the target power supply channel based on the basic load power supply component, the first safe load power supply component, and the second safe load power supply component, and determine the target load channel based on the basic load power supply component, the first safe load power supply component, the second safe load power supply component, and the output power supply component.

[0039] This step, based on the functional positioning of the components, categorizes the aforementioned components into two channels: power supply heads and load terminals, thus clarifying the scope of parameter collection. The target power supply channel focuses on the power output end, including only components with active power supply capabilities: the basic load power supply component, the first safety load power supply component, and the second safety load power supply component. These three together constitute a multi-dimensional power supply matrix for the vehicle load. The target load channel covers the entire power reception and transmission chain, including not only the three types of power supply components mentioned above but also output power supply components directly connected to the load, forming a complete closed-loop chain of power supply-transmission-load, ensuring that subsequent parameter collection covers all aspects of power flow.

[0040] Step S203: Obtain the first DC power supply module included in the basic load power supply component, the first battery power supply module included in the first safe load power supply component, and the second DC power supply module and the second battery power supply module included in the second safe load power supply component. Determine the load power supply parameters based on the power supply parameters corresponding to the first DC power supply module, the first battery power supply module, the second DC power supply module, and the second battery power supply module.

[0041] This step focuses on the power supply side, extracting performance parameters from the core modules of the target power supply channel to form a comprehensive indicator reflecting the power supply capability. First, it is necessary to accurately identify the core power supply modules of each power supply component: the first DC power supply module (the core power source for conventional power supply) in the basic load power supply component, the first battery power supply module (a primary redundant energy storage core) in the first safety load power supply component, and the second DC power supply module and the second battery power supply module (a secondary redundant power + energy storage combination) in the second safety load power supply component.

[0042] Subsequently, power supply parameters of each module are collected, including core indicators such as rated output voltage, maximum output current, continuous power supply duration, voltage fluctuation range, fault diagnosis signals, and remaining power (for battery modules). Then, through data fusion algorithms, the parameters of similar modules are compared and calibrated, and the parameters of different types of modules are complementary and integrated to finally generate load power supply parameters that can comprehensively reflect the "upper limit of power supply capacity, stability, and reliability" of each target power supply channel.

[0043] Step S204: Obtain the basic load, first domain controller and second domain controller included in the basic load power supply component, the safe master load and first domain controller included in the first safe load power supply component, and the safe slave load and second domain controller included in the second safe load power supply component. Determine the load requirement parameters based on the corresponding operating parameters of the basic load, safe master load, safe slave load, first domain controller and second domain controller.

[0044] This step focuses on the load side, extracting demand parameters from various load devices in the target load channel to form a comprehensive index reflecting power demand. First, it's necessary to systematically identify the load devices connected to each component: the basic loads covered by the basic load power supply component (such as lights, central control, wipers, and other common accessories) and the first and second domain controllers (the intelligent control core of load power supply) for coordinated control; the safe primary loads protected by the first safety load power supply component (such as LiDAR, central computing platforms, and other core autonomous driving equipment) and their corresponding first domain controllers; and the safe secondary loads supported by the second safety load power supply component (such as redundant sensors and backup computing modules) and their corresponding second domain controllers.

[0045] Subsequently, the operating parameters of each load are collected, including key indicators such as rated power, minimum supply voltage threshold, supply priority level, instantaneous power fluctuation range, and operating mode (continuous / intermittent). The focus is on the cross-component correlation characteristics of the first domain controller and the second domain controller, and their parameters are fused across channels to finally generate load demand parameters that accurately reflect the lower limit, dynamic fluctuation, and priority ranking of the power demand of each target load channel.

[0046] Optionally, step S102, which determines the power supply control strategy corresponding to supplying power from the target power supply channel to the target load channel based on the vehicle's state parameters, driving level parameters, load power supply parameters, and load demand parameters, such as... Figure 3 As shown, it includes: Step S301: When the vehicle is in a parked state, the first sleep command corresponding to the first DC power supply module and the battery power supply command corresponding to the first battery power supply module and the second battery power supply module are determined based on the load power supply parameters and load demand parameters.

[0047] This step primarily uses vehicle status parameters as the basis for judgment. When it is confirmed that the vehicle is in a parked state, it generates two types of instructions based on the load power supply parameters (capabilities of each power supply module) and load demand parameters (minimum requirements of the core load). On the one hand, since conventional low-voltage loads do not need to work when parked, a first sleep instruction is generated based on the power supply parameters of the first DC power supply module and the corresponding load demand parameters to control it to enter a low-power state to save energy. On the other hand, considering that the core control units related to autonomous driving still need to maintain basic monitoring functions when parked, a battery power supply instruction is generated based on the power supply capabilities of the first and second battery power supply modules and the minimum requirements of the core load to ensure that the dual battery modules continuously supply power in low-power mode and ensure the timeliness of system wake-up response.

[0048] Step S302: Obtain the driving level parameters corresponding to the current vehicle, and determine the corresponding autonomous driving level of the vehicle based on the driving level parameters.

[0049] This step involves adapting the power supply strategy to different levels. First, the vehicle's driving level parameters must be collected (these parameters are transmitted in real-time by the vehicle control system and include mode identifiers such as manual driving, assisted driving, and autonomous driving). Then, the specific level of autonomous driving the vehicle is currently in (e.g., Level 3 conditional autonomous driving, Level 4 highly automated driving, etc.) is determined through parameter parsing. This level information directly determines the operating status of subsequent redundant power supply modules and is the core basis for differentiating power supply strategies.

[0050] Step S303: If the autonomous driving level is greater than the preset level threshold, then determine the DC power supply command corresponding to the second DC power supply module based on the load power supply parameters and load demand parameters; if the autonomous driving level is not greater than the level threshold, then determine the second sleep command corresponding to the second DC power supply module based on the load power supply parameters and load demand parameters.

[0051] This step uses the comparison between the autonomous driving level and a preset threshold as the decision condition, and generates control commands for the second DC power supply module based on load supply and demand parameters. The preset threshold is typically set to Level 3 (the starting threshold for high-level autonomous driving): if the determined autonomous driving level is higher than this threshold (e.g., Level 4), it indicates that the vehicle has extremely high requirements for the reliability of power supply to sensors and computing modules, necessitating the activation of redundant power supply. Therefore, based on the power supply parameters of the second DC power supply module and the demand parameters of the high-level load, a DC power supply command is generated to control it to operate at full capacity. If the autonomous driving level is not higher than this threshold (e.g., Level 2 or 3), the power supply demand of the core load can be met by the base and battery modules. Based on the parameters of the second DC module and the low demand of the corresponding load, a second sleep command is generated to control it to enter sleep mode to optimize energy distribution.

[0052] Step S304: Determine the power supply control strategy corresponding to the target power supply channel supplying power to the target load channel based on the first sleep command, battery power supply command, DC power supply command and second sleep command.

[0053] This step is the final stage of strategy output, requiring the systematic integration of various instructions generated in the previous steps. Specifically, based on the first sleep instruction (controlling the first DC module) and the battery power supply instruction (controlling the dual battery modules), and combined with the DC power supply instruction output in step S303 or the second sleep instruction (controlling the second DC module), a complete instruction set covering all target power supply channels is formed. Subsequently, based on the power supply module, load object, and operating mode corresponding to each instruction, core rules such as "which type of module supplies which type of load" and "power supply power and duration" are clarified, ultimately generating a dedicated control strategy for the target power supply channel to supply power to the target load channel.

[0054] Optionally, step S102, which determines the power supply control strategy corresponding to supplying power from the target power supply channel to the target load channel based on the vehicle's state parameters, driving level parameters, load power supply parameters, and load demand parameters, such as... Figure 4 As shown, it includes: Step S401: When the vehicle is in driving state, the first DC power supply command corresponding to the first DC power supply module and the battery power supply command corresponding to the first battery power supply module and the second battery power supply module are determined based on the load power supply parameters and load demand parameters.

[0055] This step first confirms that the vehicle is in motion by using vehicle status parameters (such as vehicle speed signal, gear status, power system working signal, etc.), and then generates a core power supply command based on the supply and demand parameters. On the one hand, the vehicle's conventional low-voltage loads (such as lights and central control) and basic autonomous driving equipment require continuous power supply during driving. Based on the rated output and voltage stability of the first DC power supply module, as well as the power demand and voltage threshold of the corresponding load, a first DC power supply command is generated to control it to operate under rated conditions and ensure basic power supply. On the other hand, to cope with sudden power supply failures, a redundancy protection mechanism needs to be activated. Based on the remaining power and discharge rate of the first and second battery power supply modules, as well as the minimum emergency power supply requirements of the core safety load, a battery power supply command is generated to put the dual battery modules in a "standby-replenishment" state. Under normal circumstances, they maintain standby with low power consumption, and immediately intervene to supply power when the first DC module experiences fluctuations.

[0056] Step S402: Obtain the driving level parameters corresponding to the current vehicle, and determine the corresponding autonomous driving level of the vehicle based on the driving level parameters.

[0057] Step S403: If the autonomous driving level is greater than the preset level threshold, then determine the sleep command corresponding to the second DC power supply module based on the load power supply parameters and load demand parameters; if the autonomous driving level is not greater than the level threshold, then determine the second DC power supply command corresponding to the second DC power supply module based on the load power supply parameters and load demand parameters.

[0058] This step uses whether the autonomous driving level exceeds a preset threshold as the decision branch, and determines the working mode of the second DC module based on supply and demand parameters (the preset threshold is usually set to Level 3, which is the dividing point between high-level autonomous driving and low-to-medium-level autonomous driving). If the current autonomous driving level is higher than the threshold (such as Level 4 highly autonomous driving), the core load is provided with dual redundant power supply by the dual battery module, and the second DC module does not need to participate in the main power supply. Based on its sleep power consumption, wake-up response speed and other power supply parameters, as well as the current low load demand, a sleep command is generated to control it to enter a low-power sleep state to save energy. If the autonomous driving level is not greater than the threshold (such as Level 3), the dual battery module is only used as an emergency backup, and the second DC module needs to supplement the power supply capacity. Based on its maximum output power, load matching degree and other power supply parameters, as well as the real-time power consumption requirements of sensors and computing modules, a second DC power supply command is generated to control it to work with the first DC module to achieve load power supply.

[0059] Step S404: Determine the power supply control strategy corresponding to the target power supply channel supplying power to the target load channel based on the first DC power supply command, battery power supply command, hibernation command, and second DC power supply command.

[0060] This step is the final stage of strategy generation, requiring the system integration of various instructions output from previous steps to form a complete control logic covering all target power supply channels. Specifically, it uses the first DC power supply instruction (dominantly providing basic power supply) and the battery power supply instruction (providing redundancy protection) as the core framework, incorporating the hibernation instruction or the second DC power supply instruction (adjusting auxiliary power supply capability) generated in step S403 to construct a multi-module collaborative instruction set. Subsequently, based on information such as "module working status," "power supply priority," and "load matching relationship" in the instruction set, it clarifies the specific rules for each target power supply channel (basic, dual safety channels) to supply power to the corresponding target load channel (basic load, safety load channel), ultimately generating a power supply control strategy adapted to the driving state and the current level of autonomous driving.

[0061] Optionally, step S102, which determines the power supply control strategy corresponding to supplying power from the target power supply channel to the target load channel based on the vehicle's state parameters, driving level parameters, load power supply parameters, and load demand parameters, such as... Figure 5 As shown, it includes: Step S501: When the vehicle status parameters determine that the basic load or the first DC power supply module is in a fault state, determine the battery power supply command corresponding to the first battery power supply module and the second battery power supply module based on the load power supply parameters and load demand parameters.

[0062] This step begins with fault diagnosis. First, by using vehicle status parameters (such as load operating status feedback signals, power supply module voltage / current monitoring data, and fault diagnostic codes), it accurately determines whether the basic load (such as conventional low-voltage accessories) or the first DC power supply module (the core of the basic power supply) is in a faulty state. For example, a short circuit in the basic load may trigger a protection signal, or the output voltage of the first DC module may be below a threshold. Once a fault is confirmed, to avoid cascading risks caused by power interruption, a redundant power supply mechanism must be activated immediately: based on load power supply parameters such as the remaining charge, maximum discharge current, and continuous power supply duration of the first and second battery power supply modules, combined with the minimum emergency power supply requirements (load demand parameters) of critical equipment such as the main safety load and core computing modules, a battery power supply command is generated. This commands control the dual battery modules to start synchronously and output rated emergency power, prioritizing the power supply to the autonomous driving core system and the safety load.

[0063] Step S502: Obtain the driving level parameters corresponding to the current vehicle, and determine the corresponding autonomous driving level of the vehicle based on the driving level parameters.

[0064] Step S503: If the autonomous driving level is greater than the preset level threshold, then the DC power supply command corresponding to the second DC power supply module is determined based on the load power supply parameters and load demand parameters; if the autonomous driving level is not greater than the level threshold, then the sleep command corresponding to the second DC power supply module is determined based on the load power supply parameters and load demand parameters.

[0065] This step uses the comparison between the autonomous driving level and a preset threshold as the decision branch, and dynamically adjusts the working state of the second DC module in conjunction with supply and demand parameters (the preset threshold is usually set to Level 3, i.e., the admission standard for high-level autonomous driving). If the current autonomous driving level is higher than the threshold (e.g., Level 4), it means that the core load (e.g., LiDAR, central computing platform) requires triple protection of dual redundancy + emergency. The dual battery module alone cannot support long-term power supply. Therefore, based on the power supply capacity of the second DC power supply module (e.g., voltage regulation output range, fault self-healing capability) and the real-time power consumption requirements of the core load, a DC power supply command is generated to control it to immediately start working and form a coordinated power supply with the dual battery module. If the autonomous driving level is not higher than the threshold (e.g., Level 2, Level 3), the emergency power supply of the dual battery module can cover the core load requirements. Based on the sleep power consumption of the second DC module and the current low load requirements, a sleep command is generated to control it to enter a low power consumption state to avoid energy waste.

[0066] Step S504: Determine the power supply control strategy corresponding to the target power supply channel supplying power to the target load channel based on the battery power supply command, DC power supply command, and sleep command.

[0067] This step is the final stage of strategy generation, requiring the system integration of various instructions under fault scenarios to form emergency control logic covering all target power supply channels. Specifically, based on the battery power supply instructions of the dual-battery module (core emergency protection), the DC power supply instructions or hibernation instructions generated in step S503 (adjusting auxiliary power supply capability) are incorporated to construct a primary emergency + secondary redundancy instruction set. Subsequently, based on information such as "module working priority," "power supply allocation ratio," and "fault switching trigger conditions" in the instruction set, the specific rules for each target power supply channel (dual safety load power supply channel as the primary, basic channel suspended) to supply power to the corresponding target load channel (safety master / slave load, core domain controller) are clarified. Finally, a dedicated power supply control strategy adapted to the fault state and the current autonomous driving level is generated to ensure uninterrupted power supply and load failure during faults.

[0068] Optionally, step S102, which determines the power supply control strategy corresponding to supplying power from the target power supply channel to the target load channel based on the vehicle's state parameters, driving level parameters, load power supply parameters, and load demand parameters, such as... Figure 6 As shown, it includes: Step S601: When the vehicle status parameters determine that the first battery power supply module or the second battery power supply module is in an open circuit state, determine the normal power supply module in the first battery power supply module and the second battery power supply module, and determine the battery power supply command corresponding to the normal power supply module based on the load power supply parameters and load demand parameters.

[0069] This step begins with battery module fault diagnosis. First, it uses vehicle status parameters (such as battery module voltage monitoring data, power supply circuit continuity signals, and fault diagnostic codes) for precise judgment. If a battery module has no output voltage, communication is interrupted, or the circuit current is zero, it is determined to be in an open-circuit state. Then, it immediately filters out the normal power supply module from the first and second battery power supply modules (if the first battery is open-circuited, the second battery is locked as the normal module; or if one is normal, the module with the higher remaining charge is prioritized). Based on the normal power supply module's remaining charge, maximum discharge rate, continuous power supply capacity, and other load power supply parameters, combined with the minimum emergency power supply requirements (load demand parameters) of key equipment such as the main safety load and core domain controller, a battery power supply command is generated to control the normal battery module to start supplying power at its rated emergency power, ensuring an uninterrupted basic power supply to the autonomous driving core system.

[0070] Step S602: Obtain the driving level parameters corresponding to the current vehicle, and determine the corresponding autonomous driving level of the vehicle based on the driving level parameters.

[0071] Step S603: If the autonomous driving level is greater than the preset level threshold, then the DC power supply command corresponding to the first DC power supply module and the second DC power supply module is determined based on the load power supply parameters and load demand parameters; if the autonomous driving level is not greater than the level threshold, then the sleep command corresponding to the first DC power supply module and the second DC power supply module is determined based on the load power supply parameters and load demand parameters.

[0072] This step uses the comparison between the autonomous driving level and a preset threshold as the decision branch to dynamically adjust the working state of the dual DC modules (the preset threshold is usually set to Level 3, which is the dividing point between high-level and low-to-medium-level autonomous driving). If the current autonomous driving level is higher than the threshold (e.g., Level 4), it means that a single normal battery module is insufficient to support the long-term high power consumption requirements of the core load. The dual DC modules need to be activated to supplement the power supply. Based on the voltage regulation output range, load matching degree, and other power supply parameters of the first and second DC power supply modules, as well as the real-time power consumption requirements of the sensors and computing modules, a DC power supply command is generated to control the dual DC modules to work synchronously, forming a dual redundant power supply of "DC + battery" with the normal battery module. If the autonomous driving level is not higher than the threshold (e.g., Level 2 or Level 3), the emergency power supply of the normal battery module can cover the core requirements. Based on the sleep power consumption of the dual DC modules and the current low load requirements, a sleep command is generated to control them to enter a low-power state, avoiding energy waste and reducing the risk of failure.

[0073] Step S604: Determine the power supply control strategy corresponding to the target power supply channel supplying power to the target load channel based on the battery power supply command, DC power supply command, and sleep command.

[0074] This step is the final stage of strategy generation. It requires the system integration of various instructions under the fault scenario to form an emergency control logic covering all target power supply channels. Specifically, based on the battery power supply instructions of the normal battery module (core emergency protection), the DC power supply instructions or hibernation instructions generated in step S603 (adjusting auxiliary power supply redundancy) are incorporated to construct an instruction set of "single battery main supply + dual DC collaborative / hibernation". Based on the information such as "module working priority", "power supply allocation ratio", and "fault recovery switching conditions" in the instruction set, the specific rules for each target power supply channel (the safety channel belonging to the normal battery is the main channel, and the dual DC channels are the auxiliary channels) to supply power to the corresponding target load channels (safe master / slave load, core domain controller) are clarified. Finally, a dedicated power supply control strategy adapted to battery open circuit faults and the current autonomous driving level is generated to ensure stable power supply and reliable load operation during the fault.

[0075] Optionally, step S102, which determines the power supply control strategy corresponding to supplying power from the target power supply channel to the target load channel based on the vehicle's state parameters, driving level parameters, load power supply parameters, and load demand parameters, such as... Figure 7 As shown, it includes: Step S701: When the vehicle status parameters determine that the first battery power supply module is in a short circuit state, the first DC power supply command corresponding to the first DC power supply module and the battery power supply command corresponding to the second battery power supply module are determined based on the load power supply parameters and load demand parameters, respectively.

[0076] This step begins with accurate short-circuit fault identification. First, vehicle status parameters (such as battery module voltage drop signals, circuit overcurrent protection trigger signals, and short-circuit fault diagnostic codes) confirm that the first battery power supply module is in a short-circuit state. To prevent the fault from spreading and causing a power supply system failure, a dual response is immediately implemented: On one hand, the basic power supply module is activated to fill the gap. Based on the first DC power supply module's voltage regulation output capability, maximum load capacity, and other load power parameters, combined with the real-time power consumption requirements of the basic load and core domain controller (load demand parameters), a first DC power supply command is generated to control it to operate at full load, undertaking the power supply tasks for the basic and core loads. On the other hand, redundant battery protection is activated. Based on the second battery power supply module's remaining charge, discharge safety, emergency power supply duration, and other power parameters, as well as the minimum guarantee requirements for the safe main load, a battery power supply command is generated to control the second battery module to start synchronously, forming a dual power supply architecture of basic DC + redundant battery, ensuring uninterrupted power supply under short-circuit fault conditions.

[0077] Step S702: Obtain the driving level parameters corresponding to the current vehicle, and determine the corresponding autonomous driving level of the vehicle based on the driving level parameters.

[0078] Step S703: If the autonomous driving level is greater than the preset level threshold, then the second DC power supply command corresponding to the second DC power supply module is determined based on the load power supply parameters and load demand parameters; if the autonomous driving level is not greater than the level threshold, then the sleep command corresponding to the second DC power supply module is determined based on the load power supply parameters and load demand parameters.

[0079] This step uses the comparison between the autonomous driving level and a preset threshold as the decision branch to dynamically adjust the working mode of the second DC module (the preset threshold is usually set to Level 3, which is the dividing point between high-level and low-to-medium-level autonomous driving). If the current autonomous driving level is higher than the threshold (e.g., Level 4), it means that the core load (e.g., LiDAR, central computing platform) requires triple power supply redundancy. The first DC and second battery modules alone cannot cover the high power consumption and fault tolerance requirements. Therefore, based on the power supply stability, load matching efficiency, and other power parameters of the second DC power supply module, as well as the peak power consumption requirements of the core load, a second DC power supply command is generated to control it to immediately start working and form a coordinated power supply with the first two types of modules. If the autonomous driving level is not higher than the threshold (e.g., Level 2, Level 3), the combined power supply of the first DC and second battery can meet the core requirements. Based on the sleep power consumption of the second DC module and the current load redundancy, a sleep command is generated to control it to enter a low-power state, avoiding energy waste and reducing system complexity.

[0080] Step S704: Determine the power supply control strategy corresponding to the target power supply channel supplying power to the target load channel based on the first DC power supply command, the battery power supply command, the second DC power supply command, and the sleep command.

[0081] This step is the final stage of strategy generation. It requires the system integration of various instructions under short-circuit fault scenarios to form a complete emergency control logic covering all target power supply channels. Specifically, it uses the first DC power supply instruction (basic main supply) and the second battery power supply instruction (core redundancy) as the core framework, and incorporates the second DC power supply instruction or hibernation instruction (auxiliary redundancy adjustment) generated in step S703 to construct an instruction set of "main supply + dual redundancy / main supply + single redundancy". Subsequently, based on information such as "module working priority", "power supply allocation ratio", and "switching rules after fault recovery" in the instruction set, it clarifies the specific rules for each target power supply channel (basic channel, second safety channel as the main channel, and first safety channel suspended) to supply power to the corresponding target load channels (basic load, safety master / slave load, core domain controller). Finally, it generates a dedicated power supply control strategy adapted to the first battery short-circuit fault and the current autonomous driving level to ensure continuous power supply and reliable load operation during the fault.

[0082] Optionally, step S102, which determines the power supply control strategy corresponding to supplying power from the target power supply channel to the target load channel based on the vehicle's state parameters, driving level parameters, load power supply parameters, and load demand parameters, such as... Figure 8 As shown, it includes: Step S801: When the vehicle status parameters determine that the second DC power supply module or the second battery power supply module is in a short circuit state, determine the normal power supply module of the second DC power supply module and the second battery power supply module, and determine the first DC power supply command corresponding to the first DC power supply module and the first battery power supply command corresponding to the first battery power supply module based on the load power supply parameters and load demand parameters, respectively.

[0083] This step focuses on accurate fault diagnosis and emergency backup. First, by using vehicle status parameters (such as module voltage drop signals, circuit overcurrent protection trigger data, short-circuit fault diagnostic codes, power supply circuit continuity feedback, etc.), it determines whether the second DC power supply module or the second battery power supply module is in a short-circuit state. If the module output voltage approaches zero and the circuit current far exceeds the rated value, a short-circuit fault can be confirmed. Then, the normal power supply module of the two is immediately selected (if the second battery is short-circuited, the second DC is locked as the normal module, or the module without faults and with better remaining capacity is selected first).

[0084] Based on the power supply requirements after fault isolation, two types of core instructions are generated simultaneously: First, for the first DC power supply module, a first DC power supply instruction is generated based on its rated output power, voltage regulation accuracy, load capacity limit and other load power supply parameters, as well as the real-time power consumption requirements (load demand parameters) of the basic load and domain controller, to control it to start at full load and undertake the power supply tasks of the vehicle's regular and core basic loads; Second, for the first battery power supply module, a first battery power supply instruction is generated based on its remaining power, discharge safety, emergency power supply duration and other power supply parameters, as well as the minimum guarantee requirements of the safe main load, to activate it as a safety redundancy core, forming a dual power supply architecture of "basic main supply + safety redundancy" with the first DC module, to avoid power outages caused by short circuit faults.

[0085] Step S802: Obtain the driving level parameters corresponding to the current vehicle, and determine the corresponding autonomous driving level of the vehicle based on the driving level parameters.

[0086] Step S803: If the automatic driving speed is greater than the preset level threshold, then the second power supply command corresponding to the normal power supply module is determined based on the load power supply parameters and load demand parameters; if the automatic driving speed is not greater than the level threshold, then the sleep command corresponding to the normal power supply module is determined based on the load power supply parameters and load demand parameters.

[0087] This step uses the comparison between the autonomous driving level and the preset threshold as the decision branch to dynamically adjust the working mode of the normal power supply module in the second module (the preset threshold is usually set to L3, which is the dividing point between high-level and low-to-medium-level autonomous driving). If the current autonomous driving level is higher than the threshold (such as L4), it means that the core load (such as LiDAR, central computing platform, high-precision positioning module) requires triple power supply redundancy. The first DC and first battery modules alone cannot cover the high power consumption and fault tolerance requirements. Therefore, based on the power supply stability, load matching efficiency, peak output capability and other power parameters of the normal power supply module, as well as the instantaneous peak power demand of the core load (load demand parameter), a second power supply command is generated to control it to start working immediately, forming a coordinated power supply with the first two types of modules to improve the reliability of the power supply system. If the autonomous driving level is not higher than the threshold (such as L2 or L3), the combined power supply of the first DC and first battery can meet the safety requirements of the core load. Based on the sleep power consumption, start-up response speed and other parameters of the normal power supply module, a sleep command is generated to control it to enter a low-power standby state, which avoids energy waste and retains the emergency capability of rapid wake-up.

[0088] Step S804: Determine the power supply control strategy corresponding to the target power supply channel supplying power to the target load channel based on the first DC power supply command, the first battery power supply command, the second power supply command, and the sleep command.

[0089] This step is the final stage of strategy generation. It requires the system integration of various instructions under short-circuit fault scenarios to form a complete emergency control logic covering all target power supply channels. Specifically, it uses the first DC power supply instruction (basic main supply) and the first battery power supply instruction (safety core redundancy) as the core framework, and incorporates the second power supply instruction or hibernation instruction (auxiliary redundancy adjustment) generated in step S803 to construct an instruction set of "main supply + core redundancy + auxiliary redundancy / standby".

[0090] Subsequently, based on information such as module work priority (e.g., safety load power supply takes priority over basic load), "power allocation ratio" (e.g., 60% power supply resources allocated to the core computing module), and "fault recovery switching rules" (e.g., exit logic of normal modules after short-circuit fault clearance), the specific rules for each target power supply channel (basic load, safety master / slave load, and core domain controller) to supply power to the corresponding target load channel (basic load, safety master / slave load, and core domain controller) are clarified (basic load and first safety load power supply component are the main ones, and normal modules in the second safety load power supply component are the auxiliary ones). Finally, a dedicated power supply control strategy adapted to the short-circuit fault of the second module and the current autonomous driving level is generated to ensure continuous power supply and reliable operation of the load during the fault, while also taking energy optimization into account.

[0091] Optionally, step S102, which determines the power supply control strategy corresponding to supplying power from the target power supply channel to the target load channel based on the vehicle's state parameters, driving level parameters, load power supply parameters, and load demand parameters, such as... Figure 9 As shown, it includes: Step S901: When the vehicle status parameters determine that the second DC power supply module is in a fault state, the first DC power supply command corresponding to the first DC power supply module and the battery power supply command corresponding to the first battery power supply module are determined based on the load power supply parameters and load demand parameters, respectively.

[0092] This step begins with accurate fault identification of the second DC power supply module. First, vehicle status parameters (such as abnormal module output voltage signals, load power interruption feedback, fault diagnostic codes, and loop current monitoring data) confirm that the second DC power supply module is faulty. Common manifestations include output voltage below a threshold, no current output, or triggering over-temperature protection. To prevent a power supply gap from affecting vehicle operation, dual backup power supply must be activated immediately. On the one hand, the basic power supply core module is activated. Based on the rated power, voltage regulation range, maximum load capacity, and other load power parameters of the first DC power supply module, combined with the real-time power consumption requirements (load demand parameters) of the basic load (such as lights and central control) and the core domain controller, a first DC power supply command is generated to control it to work at full load, taking over part of the load originally shared by the second DC module, and ensuring the stability of the basic power supply link. On the other hand, the safety redundancy battery module is activated. Based on the remaining power, discharge safety, emergency power supply duration, and other power supply parameters of the first battery power supply module, as well as the minimum guarantee requirements of the safety main load (such as core sensors for autonomous driving), a battery power supply command is generated to control it to start synchronously, forming a dual power supply architecture of basic main supply + safety redundancy with the first DC module, thus strengthening the power supply defense line for the core load.

[0093] Step S902: Obtain the driving level parameters corresponding to the current vehicle, and determine the corresponding autonomous driving level of the vehicle based on the driving level parameters.

[0094] Step S903: If the autonomous driving level is greater than the preset level threshold, then determine the sleep command corresponding to the second DC power supply module based on the load power supply parameters and load demand parameters.

[0095] This step uses the comparison between the autonomous driving level and a preset threshold as the core decision-making condition to clarify the final operating mode of the second DC module in the fault state (the preset threshold is usually set to Level 3, which is the dividing point between high-level and low-to-medium-level autonomous driving). If the current autonomous driving level is higher than the threshold (such as Level 4), it indicates that the vehicle has extremely high requirements for the safety and fault tolerance of the power supply system. If the second DC module in the fault state continues to be in standby, there may be a risk of fault propagation, and it can no longer undertake the power supply task. Therefore, based on the power supply parameters such as the module's sleep power consumption and fault isolation requirements, as well as the load demand parameters that are currently fully covered by other modules, a sleep command is generated to control the second DC module to immediately enter a low-power sleep state, thereby achieving safe isolation of the faulty module. It should be noted that the handling logic for levels not exceeding the threshold is not mentioned in this scenario. The core is to prioritize the power supply safety of high-level autonomous driving, and the faulty module is uniformly isolated by sleep as the primary principle.

[0096] Step S904: Determine the power supply control strategy corresponding to the target power supply channel supplying power to the target load channel based on the first DC power supply command, battery power supply command, and sleep command.

[0097] This step is the final stage of strategy generation, requiring the system integration of various instructions under fault scenarios to form a complete emergency control logic covering all target power supply channels. Specifically, the core framework is based on the first DC power supply instruction (basic main power supply core) and the battery power supply instruction of the first battery (safety redundancy core), incorporating the hibernation instruction (fault module isolation) generated in step S903 to construct an instruction set of "main power supply + redundancy + fault isolation".

[0098] Subsequently, based on information such as module work priority (safe load power supply takes precedence over basic load), power allocation ratio (core computing module is given priority in power resource allocation), and fault recovery trigger conditions (wake-up rules after the second DC module fault is cleared), the specific rules for each target power supply channel (basic load, safe master / slave load, core domain controller) to supply power to the corresponding target load channel (basic load, safe master / slave load, core domain controller) are clarified. Finally, a dedicated power supply control strategy adapted to the second DC module fault and the current autonomous driving level is generated to ensure continuous and reliable power supply and controllable fault risk during the fault period.

[0099] As can be seen from the above vehicle load power supply control method, this method can predict the current change path throughout the charging cycle, detect and classify dynamic changes in charging current in real time, and automatically compensate for thermal management time, thus realizing a high-precision calculation of the remaining charging time.

[0100] This embodiment also provides a load control system, such as Figure 10As shown, the load control system includes: a load controller 100, a basic load power supply component 200, a first safe load power supply component 300, a second safe load power supply component 400, and an output power supply component 500. The load controller 100 is connected to the basic load power supply component 200, the first safe load power supply component 300, the second safe load power supply component 400, and the output power supply component 500 of the vehicle via a built-in isolation main switch and a sub-channel switch, respectively. The basic load power supply component 200, the first safe load power supply component 300, and the second safe load power supply component 400 constitute the target power supply channel; the basic load power supply component 200, the first safe load power supply component 300, the second safe load power supply component 400, and the output power supply component 500 constitute the target load channel. In controlling the power supply to the target vehicle load, the load control system employs the vehicle load power supply control method mentioned in the above embodiments.

[0101] The following is a detailed introduction to the load control system, such as... Figure 11 As shown, the load controller 100 specifically includes: a first isolation main switch 110, a second isolation main switch 120, a third isolation main switch 130, a first sub-channel switch 140, a second sub-channel switch 150, and a third sub-channel switch 160.

[0102] The basic load power supply component 200 specifically includes: a first DC-DC converter 210, a first fuse box 220, a basic load 230, a first domain controller 240, and a second domain controller 250. The first safety load power supply component 300 specifically includes: a first battery module 310 and a first safety load 320. The second safety load power supply component 400 specifically includes: a second battery module 410, a second safety load 420, a second DC-DC converter 430, and a second fuse box 440; wherein the second safety load 420 is connected to the second domain controller 250. The output power supply component 500 specifically includes: a functional availability requirement load and a rear-collision safety load 510.

[0103] Specifically, the first isolation main switch 110, the second isolation main switch 120 and the third isolation main switch 130 are connected in series. The first sub-channel switch 140 is used to control the power supply of the first safety load 320 with a larger current. The second sub-channel switch 150 is used to control the power supply of the functional availability requirement load and the rear collision safety load 510. The third sub-channel switch 160 is used to control the power supply of the second safety load 420 with a larger current.

[0104] The first fuse box 220 is connected to the first DC-DC converter 210, the high-current load in the base load 230, the first domain controller 240 and the second domain controller 250, and is also connected to the first isolation main switch 110. It is worth mentioning that the low-current load in the base load 230 is connected to the first domain controller 240 and the second domain controller 250.

[0105] The first battery module 310 is connected to the first isolation main switch 110, the second isolation main switch 120, and the first domain controller 240. It is worth mentioning that the first safety load 320 with a larger current is connected to the first battery module 310 through the first sub-channel switch 140; the first safety load 320 with a smaller current is connected to the first domain controller 240.

[0106] The second fuse box 440 is connected to the second battery module 410, the second DC-DC converter 430 and the third isolation main switch 130, and is also connected to the second domain controller 250. It is worth mentioning that the second safety load 420 with a larger current is connected to the second fuse box 440 through the third sub-channel switch 160; the second safety load 420 with a smaller current is connected to the second domain controller 250.

[0107] Based on the above connections, in parking mode, the operating states of each component are as follows: the first DC-DC converter 210 stops outputting and enters sleep mode; when the vehicle is at L4 level, the second DC-DC converter 430 also stops outputting and enters sleep mode; the first isolation main switch 110, the second isolation main switch 120, and the third isolation main switch 130 remain closed, and the load controller 100 enters low-power mode. At this time, the dual batteries (i.e., 310 and 410) provide the static current for the low-voltage load of the entire vehicle. When the battery current is less than a certain threshold, they enter low-power mode respectively; in parking mode, the dual batteries need to monitor the SOC and total voltage at regular intervals. When the SOC of any low-voltage battery or the total voltage is too low, the relevant controller is woken up and the parking charging mode is entered.

[0108] When parked, the system also includes non-driving conditions such as slow / fast charging mode, parking discharge mode (e.g., V2L, camping mode), and air conditioning / thermal management preheating / precooling. During these times, the first DC-DC converter 210, first battery module 310, second battery module 410, load controller 100, first domain controller 240, and second domain controller 250 maintain normal operation. When the vehicle is at Level 4, the second DC-DC converter 430 stops outputting and remains in sleep mode. If the first DC-DC converter 210 abnormally stops outputting, the vehicle system wakes up the second DC-DC converter 430, which ensures the necessary loads of the vehicle operate normally.

[0109] The power supply control strategy under normal driving conditions is as follows: Under normal driving conditions, the first DC-DC converter 210, the first battery module 310, the second battery module 410, the load controller 100, the first domain controller 240, and the second domain controller 250 maintain normal operation; the vehicle sets the output voltage of the first DC-DC converter 210 according to the minimum target charging voltage of the first battery module 310 and the second battery module 410. When the vehicle is at Level L4, the second DC-DC converter 430 maintains normal operation, and its output voltage is set according to the minimum target charging voltage of the first battery module 310 and the second battery module 410.

[0110] The power supply control strategy when the basic load 230 experiences a power failure is as follows: the first isolation main switch 110 is disconnected, isolating the basic load 230 from the fault; the first domain controller 240 and the second domain controller 250 disconnect unnecessary load power distribution channels (such as interior lights, comfort loads, etc.), and the vehicle's low-voltage power management function is downgraded or unnecessary comfort loads are shut down. The first battery module 310 and the second battery module 410 supply power to the safety load through the load controller 100. Since the dual 12V batteries cannot be charged, the 12V battery charge status needs to be monitored in real time to ensure sufficient power / energy for the safety load. When the vehicle is at L3 level and the L3 function is activated, the driver is reminded to take over. If the driver does not take over within the time limit, the vehicle enters a safe parking mode, and the charge status of the first battery module 310 and the second battery module 410 is monitored in real time to complete a safe stop before the minimum charge level is reached. When the vehicle is at L4 level, the second DC-DC converter 430 maintains normal operation, and the output voltage is set according to the minimum target charging voltage of the first battery module 310 and the second battery module 410, allowing the vehicle to continue driving.

[0111] The power supply control strategy when either the first battery module 310 or the second battery module 410 fails is as follows: If the first battery module 310 fails and disconnects or its output wiring harness becomes open, the first DC-DC converter 210 / second DC-DC converter 430 and the second battery module 410 will continue to operate normally, and the vehicle will continue to run. If the second battery module 410 fails and disconnects or its output wiring harness becomes open, the first DC-DC converter 210 / second DC-DC converter 430 and the first battery module 310 will continue to operate normally, and the vehicle will continue to run. When the L3 / L4 function is activated, the vehicle will remind the driver to take over. If the driver fails to take over within the specified time, the vehicle will enter a safe parking mode.

[0112] When a short circuit occurs in the output harness of the first battery module 310, the power supply control strategy is as follows: the first isolation main switch 110 and the second isolation main switch 120 are disconnected, isolating the short circuit fault in the output harness of the first battery module 310; at this time, the first DC-DC converter 210 and the second battery module 410 operate normally. Since the second battery module 410 cannot be charged, the battery status of the second battery module 410 needs to be monitored in real time to ensure sufficient power / energy for the safe load. When the L3 / L4 function is activated, the vehicle reminds the driver to take over. If the driver does not take over within the time limit, the vehicle enters the safe parking mode.

[0113] When the vehicle is at Level 3, after the vehicle enters the safe parking mode, the power status of the second battery module 410 needs to be monitored in real time, and the safe parking is completed before the power reaches the minimum. When the vehicle is at Level 4, the second DC-DC converter 430 can continuously charge the second battery module 410, and the vehicle can be manually driven to continue running.

[0114] When a short circuit occurs in the output harness of the second battery module 410 or the second DC converter 430, the power supply control strategy is as follows: the third isolation main switch 130 is disconnected to isolate the fault of the second safety load power supply component 400; the first DC converter 210 and the first battery module 310 operate normally; when the L3 / L4 function is activated, the vehicle reminds the driver to take over, and if the driver does not take over within the time limit, the vehicle enters the safe parking mode.

[0115] When the second DC converter 430 stops outputting due to an internal fault, the power supply control strategy is as follows: when the vehicle is at Level L4, the second DC converter 430 stops outputting, while the first DC converter 210, the first battery module 310, and the second battery module 410 operate normally.

[0116] Therefore, this load control system has a three-level power supply channel, which can generate various power supply control strategies based on vehicle status, autonomous driving level, and load power supply requirements. The load control system utilizes the built-in isolating main switch and sub-channel switches of the load controller to control the relevant power supply equipment to supply power to the load equipment according to the power supply control strategy, thus meeting the low-voltage power supply requirements of vehicles with higher levels of autonomous driving.

[0117] The vehicle load power supply control system provided in this embodiment of the invention has the same implementation principle and technical effect as the aforementioned vehicle load power supply control method embodiment. For the sake of brevity, any parts not mentioned in the system embodiment can be referred to the corresponding content in the aforementioned vehicle load power supply control method embodiment.

[0118] This embodiment also provides an electronic device, the structural schematic diagram of which is shown below. Figure 12As shown, the device includes a processor 101 and a memory 102; wherein, the memory 102 is used to store one or more computer instructions, which are executed by the processor to implement the steps of the above-described vehicle load power supply control method.

[0119] Figure 12 The electronic device shown also includes a bus 103 and a communication interface 104, with the processor 101, communication interface 104 and memory 102 connected via the bus 103.

[0120] The memory 102 may include high-speed random access memory (RAM) and may also include non-volatile memory, such as at least one disk storage device. The bus 103 may be an ISA bus, PCI bus, or EISA bus, etc. The bus can be divided into address bus, data bus, control bus, etc. For ease of representation, Figure 12 The symbol is represented by a single double-headed arrow, but this does not mean that there is only one bus or one type of bus.

[0121] The communication interface 104 is used to connect to at least one user terminal and other network units through a network interface, and to send encapsulated IPv4 packets or IPv4 packets to the user terminal through the network interface.

[0122] Processor 101 may be an integrated circuit chip with signal processing capabilities. In implementation, each step of the above method can be completed by the integrated logic circuitry in the hardware of processor 101 or by instructions in software form. The processor 101 can be a general-purpose processor, including a Central Processing Unit (CPU), a Network Processor (NP), etc.; it can also be a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field-Programmable Gate Array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components. It can implement or execute the methods, steps, and logic block diagrams disclosed in the embodiments of this disclosure. The general-purpose processor can be a microprocessor or any conventional processor. The steps of the methods disclosed in the embodiments of this disclosure can be directly manifested as execution by a hardware decoding processor, or execution by a combination of hardware and software modules in the decoding processor. The software module can reside in a mature storage medium in the art, such as random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, or registers. This storage medium is located in memory 102. The processor 101 reads the information in memory 102 and, in conjunction with its hardware, completes the steps of the method described in the foregoing embodiments.

[0123] This invention also provides a storage medium storing a computer program, which, when executed by a processor, performs the steps of the vehicle load power supply control method described in the foregoing embodiments.

[0124] In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, devices, and methods can be implemented in other ways. The system embodiments described above are merely illustrative. For example, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. Furthermore, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Additionally, the coupling or direct coupling or communication connection shown or discussed may be through some communication interfaces; the indirect coupling or communication connection between devices or units may be electrical, mechanical, or other forms.

[0125] 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.

[0126] In addition, the functional units in the various embodiments of the present invention 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.

[0127] If the aforementioned functions are implemented as software functional units and sold or used as independent products, they can be stored in a processor-executable, non-volatile, computer-readable storage medium. Based on this understanding, the technical solution of this invention, essentially, or the part that contributes to the prior art, 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, electronic device, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this invention. 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.

[0128] Finally, it should be noted that the above-described embodiments are merely specific implementations of the present invention, used to illustrate the technical solutions of the present invention, and not to limit it. The scope of protection of the present invention is not limited thereto. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that any person skilled in the art can still modify or easily conceive of changes to the technical solutions described in the foregoing embodiments within the technical scope disclosed in the present invention, or make equivalent substitutions for some of the technical features; and these modifications, changes, or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should all be covered within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A method for controlling the power supply to a vehicle load, characterized in that, The method is applied to a vehicle's load control system; wherein the load control system includes: a target power supply channel, a target load channel, and a load controller; the method includes: Determine the load power supply parameters corresponding to the target power supply channel and the load demand parameters corresponding to the target load channel; The power supply control strategy corresponding to the target power supply channel supplying power to the target load channel is determined by the vehicle status parameters, driving level parameters, load power supply parameters, and load demand parameters. The on / off strategy of the load controller is determined based on the power supply control strategy, and the on / off strategy is used to control the load controller to connect the power supply equipment in the target power supply channel to the load equipment in the target load channel. The power supply control strategy is used to control the power supply equipment to supply power to the load equipment; The steps for determining the load power supply parameters corresponding to the target power supply channel and the load demand parameters corresponding to the target load channel include: The vehicle is defined to include a basic load power supply component, a first safety load power supply component, a second safety load power supply component, and an output power supply component; wherein, the load controller is connected to the basic load power supply component, the first safety load power supply component, the second safety load power supply component, and the output power supply component respectively through multiple built-in switches; The target power supply channel is determined based on the basic load power supply component, the first safe load power supply component, and the second safe load power supply component, and the target load channel is determined based on the basic load power supply component, the first safe load power supply component, the second safe load power supply component, and the output power supply component; The first DC power supply module included in the basic load power supply component, the first battery power supply module included in the first safe load power supply component, and the second DC power supply module and the second battery power supply module included in the second safe load power supply component are obtained. The load power supply parameters are determined according to the power supply parameters corresponding to the first DC power supply module, the first battery power supply module, the second DC power supply module and the second battery power supply module. The load requirement parameters are determined based on the operating parameters corresponding to the basic load, the first domain controller, and the second domain controller in the basic load power supply component, the safe master load and the first domain controller in the first safe load power supply component, and the safe slave load and the second domain controller in the second safe load power supply component.

2. The vehicle load power supply control method according to claim 1, characterized in that, The steps of determining the power supply control strategy corresponding to the target power supply channel supplying power to the target load channel based on the vehicle status parameters, driving level parameters, load power supply parameters, and load demand parameters include: When the vehicle is determined to be in a parked state using the vehicle status parameters, the first sleep command corresponding to the first DC power supply module, the battery power supply command corresponding to the first battery power supply module, and the battery power supply command corresponding to the second battery power supply module are determined based on the load power supply parameters and the load demand parameters, respectively. Obtain the driving level parameters corresponding to the current vehicle, and determine the autonomous driving level corresponding to the vehicle based on the driving level parameters; If the autonomous driving level is greater than a preset level threshold, then the DC power supply command corresponding to the second DC power supply module is determined based on the load power supply parameters and the load demand parameters; if the autonomous driving level is not greater than the level threshold, then the second sleep command corresponding to the second DC power supply module is determined based on the load power supply parameters and the load demand parameters. Based on the first sleep command, the battery power command, the DC power command, and the second sleep command, the power supply control strategy corresponding to the target power supply channel supplying power to the target load channel is determined.

3. The vehicle load power supply control method according to claim 1, characterized in that, The steps of determining the power supply control strategy corresponding to the target power supply channel supplying power to the target load channel based on the vehicle status parameters, driving level parameters, load power supply parameters, and load demand parameters include: When the vehicle is determined to be in driving state using the vehicle status parameters, the first DC power supply command corresponding to the first DC power supply module, the battery power supply command corresponding to the first battery power supply module, and the battery power supply command corresponding to the second battery power supply module are determined based on the load power supply parameters and the load demand parameters, respectively. Obtain the driving level parameters corresponding to the current vehicle, and determine the autonomous driving level corresponding to the vehicle based on the driving level parameters; If the autonomous driving level is greater than a preset level threshold, a sleep command corresponding to the second DC power supply module is determined based on the load power supply parameters and the load demand parameters; if the autonomous driving level is not greater than the level threshold, a second DC power supply command corresponding to the second DC power supply module is determined based on the load power supply parameters and the load demand parameters. Based on the first DC power supply command, the battery power supply command, the sleep command, and the second DC power supply command, the corresponding power supply control strategy is determined when the target power supply channel supplies power to the target load channel.

4. The vehicle load power supply control method according to claim 1, characterized in that, The steps of determining the power supply control strategy corresponding to the target power supply channel supplying power to the target load channel based on the vehicle status parameters, driving level parameters, load power supply parameters, and load demand parameters include: When the vehicle status parameters determine that the basic load or the first DC power supply module is in a fault state, the battery power supply command corresponding to the first battery power supply module and the second battery power supply module is determined based on the load power supply parameters and the load demand parameters. Obtain the driving level parameters corresponding to the current vehicle, and determine the autonomous driving level corresponding to the vehicle based on the driving level parameters; If the autonomous driving level is greater than a preset level threshold, then the DC power supply command corresponding to the second DC power supply module is determined based on the load power supply parameters and the load demand parameters; if the autonomous driving level is not greater than the level threshold, then the sleep command corresponding to the second DC power supply module is determined based on the load power supply parameters and the load demand parameters. The power supply control strategy corresponding to the target power supply channel supplying power to the target load channel is determined based on the battery power supply command, the DC power supply command, and the sleep command.

5. The vehicle load power supply control method according to claim 1, characterized in that, The steps of determining the power supply control strategy corresponding to the target power supply channel supplying power to the target load channel based on the vehicle status parameters, driving level parameters, load power supply parameters, and load demand parameters include: When the vehicle status parameters determine that the first battery power supply module or the second battery power supply module is in an open circuit state, the normal power supply module among the first battery power supply module and the second battery power supply module is determined, and the battery power supply command corresponding to the normal power supply module is determined based on the load power supply parameters and the load demand parameters. Obtain the driving level parameters corresponding to the current vehicle, and determine the autonomous driving level corresponding to the vehicle based on the driving level parameters; If the autonomous driving level is greater than a preset level threshold, then the DC power supply command corresponding to the first DC power supply module and the second DC power supply module is determined based on the load power supply parameters and the load demand parameters; if the autonomous driving level is not greater than the level threshold, then the sleep command corresponding to the first DC power supply module and the second DC power supply module is determined based on the load power supply parameters and the load demand parameters. The power supply control strategy corresponding to the target power supply channel supplying power to the target load channel is determined based on the battery power supply command, the DC power supply command, and the sleep command.

6. The vehicle load power supply control method according to claim 1, characterized in that, The steps of determining the power supply control strategy corresponding to the target power supply channel supplying power to the target load channel based on the vehicle status parameters, driving level parameters, load power supply parameters, and load demand parameters include: When the vehicle status parameters determine that the first battery power supply module is in a short circuit state, the first DC power supply command corresponding to the first DC power supply module and the battery power supply command corresponding to the second battery power supply module are determined based on the load power supply parameters and the load demand parameters, respectively. Obtain the driving level parameters corresponding to the current vehicle, and determine the autonomous driving level corresponding to the vehicle based on the driving level parameters; If the autonomous driving level is greater than a preset level threshold, then a second DC power supply command corresponding to the second DC power supply module is determined based on the load power supply parameters and the load demand parameters; if the autonomous driving level is not greater than the level threshold, then a sleep command corresponding to the second DC power supply module is determined based on the load power supply parameters and the load demand parameters. Based on the first DC power supply command, the battery power supply command, the second DC power supply command, and the sleep command, the corresponding power supply control strategy is determined when the target power supply channel supplies power to the target load channel.

7. The vehicle load power supply control method according to claim 1, characterized in that, The steps of determining the power supply control strategy corresponding to the target power supply channel supplying power to the target load channel based on the vehicle status parameters, driving level parameters, load power supply parameters, and load demand parameters include: When the vehicle status parameters determine that the second DC power supply module or the second battery power supply module is in a short circuit state, the normal power supply module of the second DC power supply module and the second battery power supply module is determined, and the first DC power supply command corresponding to the first DC power supply module and the first battery power supply command corresponding to the first battery power supply module are determined based on the load power supply parameters and the load demand parameters, respectively. Obtain the driving level parameters corresponding to the current vehicle, and determine the autonomous driving level corresponding to the vehicle based on the driving level parameters; If the autonomous driving level is greater than a preset level threshold, a second power supply command corresponding to the normal power supply module is determined based on the load power supply parameters and the load demand parameters; if the autonomous driving level is not greater than the level threshold, a sleep command corresponding to the normal power supply module is determined based on the load power supply parameters and the load demand parameters. The power supply control strategy corresponding to the target power supply channel supplying power to the target load channel is determined based on the first DC power supply command, the first battery power supply command, the second power supply command, and the sleep command.

8. The vehicle load power supply control method according to claim 1, characterized in that, The steps of determining the power supply control strategy corresponding to the target power supply channel supplying power to the target load channel based on the vehicle status parameters, driving level parameters, load power supply parameters, and load demand parameters include: When the vehicle status parameters determine that the second DC power supply module is in a fault state, the first DC power supply command corresponding to the first DC power supply module and the battery power supply command corresponding to the first battery power supply module are determined based on the load power supply parameters and the load demand parameters, respectively. Obtain the driving level parameters corresponding to the current vehicle, and determine the autonomous driving level corresponding to the vehicle based on the driving level parameters; If the autonomous driving level is greater than the preset level threshold, then the sleep command corresponding to the second DC power supply module is determined based on the load power supply parameters and the load demand parameters; The power supply control strategy corresponding to the target power supply channel supplying power to the target load channel is determined based on the first DC power supply command, the battery power supply command, and the sleep command.

9. A load control system, characterized in that, The load control system includes: a target power supply channel, a target load channel, and a load controller; wherein the load controller is connected to the target load channel and the load controller respectively through multiple built-in switches; The load control system employs the vehicle load power supply control method described in any one of claims 1 to 8 during the process of controlling the power supply to the target vehicle load.

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