Power management systems, methods, apparatuses, vehicles, and storage media

Abstract

The application discloses a power management system, method, device, vehicle and storage medium. A total power switch module, a control box, a distribution box and a power box are provided. The total power switch module is used for controlling the opening and closing of an automatic driving function, and supplying power to the control box when the automatic driving function is in an open state. The control box is used for acquiring detection data corresponding to a plurality of preset devices associated with the automatic driving function, and controlling the on-off of each relay in the distribution box according to the detection data. The detection data includes voltage detection data and current detection data. The distribution box includes a plurality of branches, each branch includes a relay, and the plurality of relays are connected to a plurality of power modules in the power box in one-to-one correspondence. The plurality of power modules in the power box are connected to the plurality of preset devices in one-to-one correspondence to supply power to the corresponding preset devices. The power management system effectively improves the performance.

Description

Technical Field

[0001] This invention relates to the field of intelligent driving technology, and in particular to power management systems, methods, devices, vehicles, and storage media. Background Technology

[0002] Autonomous vehicles are motor vehicles equipped with advanced sensors and other devices, utilizing technologies such as artificial intelligence, computer vision, radar, GPS, and vehicle-to-everything (V2X) communication to enable them to perceive their environment, plan their routes, and control themselves autonomously. Currently, with increasing demands, vehicles are incorporating more and more autonomous driving equipment, such as autonomous driving domain controllers, LiDAR, cameras, integrated navigation systems, displays, and radiators. Because these devices have varying power requirements and their combined power consumption is extremely high, a stable and controllable high-performance power management system is essential.

[0003] The existing power management system is unable to effectively manage the power supply to the various devices involved in the autonomous driving function, resulting in poor system performance and requiring improvement. Summary of the Invention

[0004] This invention provides a power management system, method, apparatus, vehicle, and storage medium, which can solve the problem of poor performance of power management systems.

[0005] According to one aspect of the present invention, a power management system is provided, comprising a main power switch module, a control box, a junction box, and a power supply box; wherein:

[0006] The main power switch module is used to control the activation and deactivation of the autonomous driving function, and to supply power to the control box when the autonomous driving function is activated.

[0007] The control box is used to acquire detection data corresponding to multiple preset devices associated with the autonomous driving function, and to control the on / off state of each relay in the junction box according to the detection data. The detection data includes voltage detection data and current detection data.

[0008] The junction box includes multiple branches, each branch contains a relay, and the multiple relays are connected one-to-one with multiple power modules in the power supply box.

[0009] The power supply box contains multiple power modules that are connected to multiple preset devices one by one to supply power to the corresponding preset devices.

[0010] According to another aspect of the present invention, a power management method is provided, comprising:

[0011] Acquire detection data corresponding to multiple preset devices associated with the autonomous driving function;

[0012] Based on the detection data, determine whether the corresponding preset device is abnormal. If an abnormality is found, output disconnect and close signals sequentially to the relay corresponding to the preset device that is abnormal.

[0013] According to another aspect of the present invention, a power management device is provided, comprising a control box disposed in a power management system of any embodiment of the present invention, the device including:

[0014] The detection data receiving module is used to acquire detection data corresponding to multiple preset devices associated with the autonomous driving function.

[0015] The relay control module is used to determine whether the corresponding preset device has malfunctioned based on the detection data. If an malfunction occurs, it sequentially outputs an open signal and an closed signal to the relay corresponding to the preset device that malfunctioned.

[0016] According to another aspect of the present invention, a vehicle is provided, equipped with a power management system according to any embodiment of the present invention, wherein the control box of the power management system includes:

[0017] At least one processor; and

[0018] A memory that is communicatively connected to at least one processor; wherein,

[0019] The memory stores a computer program that can be executed by at least one processor, such that the at least one processor is able to perform the power management method of any embodiment of the present invention.

[0020] According to another aspect of the present invention, a computer-readable storage medium is provided, which stores computer instructions for causing a processor to execute and implement the power management method of any embodiment of the present invention.

[0021] The power management system of this invention includes a main power switch module, a control box, a junction box, and a power supply box. The main power switch module controls the activation and deactivation of the autonomous driving function. When the autonomous driving function is activated, it supplies power to the control box, which in turn powers the junction box. The junction box then powers each power module in the power supply box, allowing each power module to supply power to preset devices. Simultaneously, the control box acquires detection data corresponding to multiple preset devices and controls the on / off state of each relay in the junction box based on this data, thus controlling the switching on / off state of each branch. This invention solves the problem that existing power management systems only provide dual-power redundancy management or improve performance through dual-power redundancy and domain controller detection of critical voltages, resulting in poor system performance due to the inability to effectively manage the power supply to various devices involved in the autonomous driving function. The invention achieves the beneficial effect of real-time detection of device status and targeted management of power supply to each device, effectively improving the performance of the power management system.

[0022] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of the present invention, nor is it intended to limit the scope of the invention. Other features of the invention will become readily apparent from the following description. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of a power management system provided in Embodiment 1 of the present invention;

[0025] Figure 2 This is a schematic diagram of a control signal switching switch provided in an embodiment of the present invention;

[0026] Figure 3 This is a schematic diagram of a power management system provided in Embodiment 2 of the present invention;

[0027] Figure 4 This is a schematic diagram of a power management system provided in Embodiment 3 of the present invention;

[0028] Figure 5 The diagram shows a structural schematic of a control box function provided in Embodiment 3 of the present invention;

[0029] Figure 6 A flowchart of a power management method provided in Embodiment 4 of the present invention;

[0030] Figure 7 This is a schematic diagram of a power management device provided in Embodiment 5 of the present invention;

[0031] Figure 8 This is a structural schematic diagram of a vehicle provided in Embodiment 4 of the present invention. Detailed Implementation

[0032] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0033] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0034] Example 1

[0035] Figure 1 This is a schematic diagram of a power management system according to Embodiment 1 of the present invention. This embodiment is applicable to situations where a vehicle supplies power to autonomous driving equipment and monitors its operating status. The system can be configured in a vehicle. Figure 1 As shown, the system includes:

[0036] The system comprises a main power switch module 110, a control box 120, a junction box 130, and a power supply box 140. The main power switch module 110 controls the activation and deactivation of the autonomous driving function and supplies power to the control box 120 when the autonomous driving function is activated. The control box 120 acquires detection data corresponding to multiple preset devices associated with the autonomous driving function and controls the on / off state of each relay in the junction box 130 based on the detection data. The detection data includes voltage detection data and current detection data. The junction box 130 includes multiple branches, each containing a relay. These relays are connected one-to-one with multiple power modules in the power supply box 140. The power modules in the power supply box 140 are connected one-to-one with multiple preset devices to supply power to the corresponding preset devices.

[0037] Among these, preset devices can be understood as devices that are activated during autonomous driving based on user needs, such as... Figure 1 The device includes displays, heat sinks, millimeter-scale radar, lidar, and integrated navigation systems.

[0038] In this embodiment, as Figure 1 As shown, one end of the control box is connected to the main power switch module, and the other end is connected to the distribution box. The other end of the distribution box is connected to each power module in the power box through various relays. Each power module in the power box is connected to a back-end device.

[0039] The specific work process is as follows:

[0040] When the autonomous driving function is activated, power is supplied to the control box via the main power switch module. The control box then supplies power to the distribution box, which in turn supplies power to the various power modules in the power supply box via relays. These power modules then supply power to the pre-installed devices. Simultaneously, voltage and current detection data generated on the corresponding branches of each pre-installed device are transmitted to the control box. The control box then uses this data to control the relays in the distribution box, thereby controlling the power supply to and from the pre-installed devices on each branch.

[0041] The power management system of this invention includes a main power switch module, a control box, a junction box, and a power supply box. The main power switch module controls the activation and deactivation of the autonomous driving function. When the autonomous driving function is activated, it supplies power to the control box, which in turn powers the junction box. The junction box then powers each power module in the power supply box, allowing each power module to supply power to preset devices. Simultaneously, the control box acquires detection data corresponding to multiple preset devices and controls the on / off state of each relay in the junction box based on this data, thus controlling the switching on / off state of each branch. This invention solves the problem that existing power management systems only provide dual-power redundancy management or improve performance through dual-power redundancy and domain controller detection of critical voltages, resulting in poor system performance due to the inability to effectively manage the power supply to various devices involved in the autonomous driving function. The invention achieves the beneficial effect of real-time detection of device status and targeted management of power supply to each device, effectively improving the performance of the power management system.

[0042] As an optional embodiment, the power management system further includes multiple voltage sensors and multiple current sensors; the multiple voltage sensors are connected one-to-one with multiple preset devices to output voltage detection data corresponding to each preset device to the control box; the multiple current sensors are also connected one-to-one with multiple preset devices to output current detection data corresponding to each preset device to the control box. This technical solution improves the accuracy of preset device detection.

[0043] In this embodiment, the current sensor may include a Hall sensor, which can convert the current signal of each preset device into a voltage signal for detection.

[0044] Specifically, considering that voltage detection data cannot reflect all abnormal states of preset devices, simultaneously acquiring voltage and current detection data of preset devices to determine their operating status can improve the accuracy of the power management system's detection of preset device status. In the battery management system, a voltage sensor and a Hall sensor are configured for each preset device to acquire the corresponding voltage and current detection data. This acquired data is then output to the control box, enabling the control box to make a more accurate judgment on the operating status of the preset devices based on this data.

[0045] As another optional embodiment, the branch circuit also includes a control signal switching switch with three positions. When the first position is closed, the relay in the corresponding branch circuit receives the control signal output from the control box; when the second position is closed, the relay in the corresponding branch circuit receives a manual disconnect signal; and when the third position is closed, the relay in the corresponding branch circuit receives a manual close signal. This technical solution enables manual or automatic control of the power supply to each branch circuit, effectively improving the system's reliability.

[0046] In this embodiment, the control signal switching switch can be understood as a three-position switch, which controls the relay to receive control signals from different sources at different positions.

[0047] Specifically, Figure 2 This is a schematic diagram of a control signal switching switch provided in an embodiment of the present invention. Considering the possibility of malfunction in the control box or the user's need to manually set the power on / off states of each branch, a three-position switch can be used. Specifically, the first position allows the relay to receive signals from the control box; when the first position is closed, the relay on that branch is controlled by the control box. The second position allows the relay to receive a manual reset signal; when the second position is closed, the relay on that branch is open, and the branch is in a de-energized state. The third position allows the relay to receive a manual closing signal; when the third position is closed, the relay on that branch is closed, and the branch is in a energized state.

[0048] As another optional embodiment, the battery management system also includes a backup power module; the backup power module is used to provide power in place of the vehicle power supply when the voltage of the vehicle power supply is lower than a preset voltage threshold. The above technical solution can effectively improve the robustness and reliability of the power supply system.

[0049] In this embodiment, the backup battery module can be used to assist the original vehicle's DC-DC converter. The preset voltage threshold includes empirical values ​​set based on actual conditions; this embodiment does not limit the preset voltage threshold.

[0050] Specifically, considering the power consumption of the original vehicle's DC-DC converter by driving functions, which causes the DC-DC voltage to gradually decrease, potentially leading to problems such as the autonomous driving system malfunctioning and the vehicle being unable to continue driving, a backup battery module is added to the battery management system to enhance the vehicle's power supply capability. When adding the backup battery module, a dual-battery isolator is required. When the voltage drops to a threshold V1, the dual-battery isolator disconnects the original vehicle's DC-DC converter from the main circuit, using the backup battery module for emergency power supply, prioritizing driving functions. Simultaneously, an alarm is generated at the system level, reminding manual disabling of the autonomous driving system; otherwise, the control box will power down all preset devices after a certain period.

[0051] Optionally, since there are multiple preset devices, these devices may generate a lot of load after being powered on. When the original vehicle's DC-DC power supply is insufficient, the backup battery module will assist the original vehicle's DC-DC power supply.

[0052] Example 2

[0053] Figure 3This is a schematic diagram of a power management system according to Embodiment 2 of the present invention. This embodiment is an optimization based on the above embodiment, and a domain controller is added to the preset device. Figure 3 As shown, the system includes:

[0054] The system includes a main power switch module 210, a control box 220, a junction box 230, a power supply box 240, and a preset device module 250. The main power switch module 210, junction box 230, and power supply box 240 have been described in the previous embodiments and will not be repeated here. The preset device module 250 is equipped with a domain controller. The control box 220 is also used to receive power supply control signals from the domain controller for the target preset device and control the on / off state of the relays in the junction box corresponding to the target preset device based on the power supply control signals.

[0055] In this embodiment, the domain controller can be an intelligent driving domain controller, which integrates computationally intensive sensor data processing and sensor fusion with control strategy development into a single control unit. This enables the vehicle to perform multi-sensor fusion, localization, path planning, decision-making, and control, and features platformization, high integration, high performance, and good compatibility. Considering that different automotive OEMs may divide the system into several different domains based on their own design philosophies, this embodiment does not limit the domain controller.

[0056] The target preset device includes currently operating autonomous driving equipment. This preset device uploads its own relevant information to the domain controller, which then manages and controls it. For example, the domain controller can control the power-on and power-off of the device. Power supply control signals include signals that control the power-on and power-off of the target preset device.

[0057] Specifically, the preset devices can include multiple autonomous driving devices, such as heat sinks, displays, integrated navigation systems, and the domain controller itself. Once the domain controller is powered on and operating normally, it can acquire voltage and current detection data for the current preset device. Optionally, this voltage and current detection data can be output from the control box to the domain controller. The domain controller then determines the current status of the preset device based on the voltage and current monitoring data and sends control signals to the control box. This control signals are used to control the power supply to the current preset device by switching the relays on the branch to which the preset device belongs.

[0058] Optionally, user terminals such as computers can also be directly connected to the control box, for example, by wired or wireless connection. Wireless connection can include short-range communication or long-range communication. That is, the control box can include a communication port for communication with the user terminal, so that the user terminal can obtain detection data from the control box to analyze and judge the working status of preset devices, and then send control signals to the control box to control and manage the preset devices.

[0059] The power management system provided in this embodiment of the invention can realize the power on and off of preset devices by using a domain controller, effectively expanding the control and management capabilities of the domain controller and further improving the stability of the system.

[0060] Example 3

[0061] Figure 4 This is a schematic diagram of a power management system according to Embodiment 3 of the present invention. This embodiment is an optimized technical solution based on the above embodiments. This embodiment provides a detailed description of the content of each module in the power management system, the connections between modules, and the workflow of the power management system. Figure 4 As shown, it includes:

[0062] The system includes a main power switch module, a backup battery module, a control box, a junction box, a power supply box, and preset equipment modules. The main power switch module may include a mechanical switch K1, an emergency stop switch K2, a relay, a fuse F1, a voltage sensor, a current sensor, and a dual-battery isolation controller GND. Mechanical switch K1 supplies power to the autonomous driving equipment; emergency stop switch K2 can quickly power down the autonomous driving system; the relay controls the on / off state of the main power supply circuit; fuse F1 protects downstream equipment, prioritizing fuse failure in case of abnormalities to prevent damage to downstream equipment; the voltage and current sensors collect real-time voltage and current signals on the current circuit, with V1 and A1 representing the main branch voltage and current; the dual-battery isolation controller GND monitors the voltage of the original vehicle battery and the original vehicle DC-DC converter (DC-DC converter) in real-time. If the voltage of the original vehicle DC-DC converter falls below a preset threshold, it will disconnect the original vehicle DC-DC converter and activate the backup battery. The backup battery module includes a fuse F2, a switching switch S1, and a relay. In this system, fuse F2 and the relay function the same as fuse F1 and the relay in the main power switch module. The changeover switch controls the relay to accept different control signals. The control box includes a data acquisition unit, an analog-to-digital converter (ADC), a microcontroller unit (MCU), and a memory module. The data acquisition unit acquires voltage and current detection data from each branch; the ADC converts the analog and digital signals; the MCU controls the on / off state of the relays; and the memory module stores abnormal data for later review. The junction box can consist of fuses, changeover switches, and relays; their functions have been described previously and will not be repeated here. The power supply box can consist of a DC-DC module and voltage and current sensors. The DC-DC module is selected based on the different requirements of the preset devices. For example, if a monitor requires 5V but the junction box outputs 12V, a 12V to 5V DC-DC module is needed. Voltage and current sensors are used to collect real-time voltage and current data on each branch. For example, if the preset device is a heat sink, the voltage and current sensors will acquire data from its corresponding branch. Preset devices may include heat sinks, monitors, cameras, domain controllers, LiDAR, millimeter-wave radar, and integrated navigation systems, etc.

[0063] For example, such as Figure 4As shown, when the autonomous driving function is not activated, the vehicle is in its initial state. At this time, the original vehicle battery supplies power to the vehicle. The mechanical switch K1, emergency stop switch K2, and dual-battery isolation controller GND in the main power switch module are in the open state. The control switch in the junction box is in the first position, allowing the relays to receive control signals from the control box. When the autonomous driving function is to be activated, the mechanical switch K1 is manually closed to connect the main circuit. At this time, the main power switch module receives power from the original vehicle's DC-DC converter, thus activating the autonomous driving function. The main power switch module supplies power to the control box. The control box outputs control signals to each branch relay in the junction box according to pre-set logic, thereby opening the relays and supplying power to each branch DC-DC module in the power box. Each branch DC-DC module starts working, supplying power to preset devices, which then begin initialization. Simultaneously, the voltage and current sensors on each branch of the relays start working and send real-time voltage and current detection data to the ADC of the control box. The control box's ADC receives real-time voltage and current detection data, converts it into digital signals, and transmits them to the MCU. The MCU then outputs control signals to the relays according to the set logic, controlling the relays' on / off state, and consequently controlling the power-on / off state of preset devices. Its functional logic is as follows: Figure 5 This is a schematic diagram of the control box function provided in Embodiment 3 of the present invention. If the control box function fails or it is necessary to manually set the power-on status of each device, the power on / off of the corresponding device can be controlled by manually controlling the corresponding switching switch position. When the autonomous driving domain controller is working normally, the domain controller can also receive the real-time voltage and current data of the control box and can send control signals to the control box to control the on / off of the relays in the junction box and control the power on / off of the devices. If a special situation requires the power supply of the autonomous driving system to be quickly cut off, the emergency stop switch K2 can be pressed. When the voltage of the original vehicle DC-DC drops to a certain threshold, the dual battery isolator GND disconnects the original vehicle DC-DC in the main circuit to prioritize the driving function. At the same time, an alarm is generated at the system end to remind manual shutdown of the autonomous driving system; otherwise, the control box will power off all devices after a period of time. After the autonomous driving is turned off, K1 is manually disconnected to prevent device leakage, which could cause battery depletion and prevent the vehicle from starting. In this embodiment, the setting logic can be to control the relays to turn on preset devices in a certain order, or to turn on back-end devices at a certain interval, or to control the relays to turn off preset devices in a certain order, or to control the on / off of the relays according to the current and voltage of the preset devices after they are powered on.

[0064] Embodiment 2 of the present invention, as the optimal technical solution for the power management system, realizes the detection and management of power supply for various devices involved in the autonomous driving function, effectively improving the performance of the power management system.

[0065] Example 4

[0066] Figure 6This is a flowchart of a power management method provided in Embodiment 4 of the present invention. This method is applied to the control box in the power management system of any of the above embodiments. Figure 6 As shown, the method includes:

[0067] S401. Obtain the detection data corresponding to multiple preset devices associated with the autonomous driving function.

[0068] Specifically, the control box uses a data acquisition device to acquire the output detection data of the voltage and current sensors corresponding to each preset device.

[0069] S402. Determine whether the corresponding preset device is abnormal based on the detection data. If an abnormality is found, output disconnect and close signals to the relay corresponding to the preset device that is abnormal in sequence.

[0070] Specifically, based on the obtained detection data, it is determined whether the operating status of the preset device is abnormal. If a preset device is abnormal, the relay corresponding to the abnormal preset device is controlled to first open and then close. Optionally, if no voltage detection data and / or current detection data are obtained for the preset device to be judged, the preset device to be judged is determined to be abnormal. For example, if there is voltage but no current in the preset device of a certain branch, it is determined that the preset device corresponding to that branch is abnormal, and the relay in the junction box of that branch is controlled to first open and then close. Optionally, if the voltage or current obtained for the preset device to be judged exceeds its set maximum threshold or is less than its set minimum threshold, the preset device to be judged is determined to be abnormal. Here, the maximum and minimum voltage thresholds can be the maximum and minimum critical values ​​of the voltage required by the preset device, and similarly, the maximum and minimum current thresholds can be the maximum and minimum critical values ​​of the current required by the preset device. For example, if the maximum current required by the preset device of a certain branch is 10A, but the current of the current on the branch is 11A, it is determined that the preset device corresponding to the branch is abnormal, and the relay in the junction box of the branch is controlled to first disconnect and then close.

[0071] Optionally, after the domain controller is powered on and operating normally, the control signal issued by the domain controller to open or close the branch can be obtained, thereby controlling the relay. For example, the method further includes: receiving a power supply control signal for a target preset device output by the domain controller, and controlling the on / off state of the relay corresponding to the target preset device in the junction box based on the power supply control signal.

[0072] The power management method provided in Embodiment 2 of the present invention acquires detection data corresponding to each preset device, and then uses the detection data to realize the on / off state of the corresponding branch, that is, to realize the detection of the status of the corresponding preset device. It can detect each preset device in real time and realize targeted management and control of each preset device, effectively improving the performance of the power management system.

[0073] Example 5

[0074] Figure 7 This is a schematic diagram of a power management device according to Embodiment 5 of the present invention. This device can be configured with the control box in the power management system of any of the above embodiments, such as... Figure 7 As shown, the device includes a detection data receiving module 51 and a relay control module 52. Wherein:

[0075] The detection data receiving module 51 is used to acquire detection data corresponding to multiple preset devices associated with the autonomous driving function.

[0076] The relay control module 52 is used to determine whether the corresponding preset device is abnormal based on the detection data. If an abnormality occurs, it sequentially outputs an open signal and an closed signal to the relay corresponding to the preset device that is abnormal.

[0077] The power management device provided in the embodiments of the present invention can execute the power management method provided in any embodiment of the present invention, and has the corresponding functional modules and beneficial effects of executing the method.

[0078] Example 6

[0079] Figure 8 This is a structural schematic diagram of a vehicle provided in Embodiment Six of the present invention. Figure 8 As shown, the vehicle 61 includes a power management system 62, which includes a control box 63. The control box 63 consists of a controller 64 and a memory 65 that communicates with it. The controller 64 can access the contents of the memory 65 and perform control operations based on the accessed contents.

[0080] It should be understood that the various forms of processes shown above can be used, with steps reordered, added, or deleted. For example, the steps described in this invention can be executed in parallel, sequentially, or in different orders, as long as the desired result of the technical solution of this invention can be achieved, and no limitation is imposed herein.

[0081] This invention also provides a storage medium, which may be a computer-readable storage medium, storing computer instructions that are used to cause a processor to implement the power management method provided in this invention.

[0082] The specific embodiments described above do not constitute a limitation on the scope of protection of this invention. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this invention should be included within the scope of protection of this invention.

Claims

1. A power management system, characterized in that, Includes a main power switch module, control box, junction box, and power supply box; among which: The main power switch module is used to control the activation and deactivation of the autonomous driving function, and to supply power to the control box when the autonomous driving function is activated; wherein, the main power switch module includes a mechanical switch and an emergency stop switch, the mechanical switch is used to supply power to the autonomous driving device; the emergency stop switch is used to directly cut off the power supply to the autonomous driving system in an emergency. The control box is used to acquire detection data corresponding to multiple preset devices associated with the autonomous driving function, and to control the on / off state of each relay in the junction box according to the detection data, wherein the detection data includes voltage detection data and current detection data; The junction box includes multiple branches, each branch contains a relay, and the multiple relays are connected one-to-one with multiple power modules in the power box; The power modules in the power box are connected one-to-one with the multiple preset devices to supply power to the corresponding preset devices; The branch circuit also includes a control signal switching switch, which has three positions. When the first position is closed, the relay in the branch circuit receives the control signal output by the control box. When the second position is closed, the relay in the branch circuit receives a manual disconnect signal. When the third position is closed, the relay in the branch circuit receives a manual close signal.

2. The system according to claim 1, characterized in that, It also includes multiple voltage sensors and multiple current sensors; The plurality of voltage sensors are connected one-to-one with the plurality of preset devices to output voltage detection data corresponding to the preset devices to the control box. The multiple current sensors are connected one-to-one with the multiple preset devices to output current detection data corresponding to each preset device to the control box.

3. The system according to claim 1, characterized in that, The plurality of preset devices includes a domain controller corresponding to the autonomous driving function; The control box is also used to receive the power supply control signal of the target preset device output by the domain controller, and control the on / off state of the relay in the junction box corresponding to the target preset device based on the power supply control signal.

4. The system according to claim 3, characterized in that: The control box is also used to output the detection data corresponding to the plurality of preset devices to the domain controller.

5. The system according to claim 1, characterized in that, It also includes a backup power module; The backup power module is used to provide power in place of the vehicle power supply when the voltage of the vehicle power supply is lower than a preset voltage threshold.

6. A power management method, characterized in that, The method, applied to a control box in a power management system as described in any one of claims 1-5, comprises: Acquire detection data corresponding to multiple preset devices associated with the autonomous driving function; Based on the detection data, determine whether the corresponding preset device is abnormal. If an abnormality is found, output an open signal and an closed signal to the relay corresponding to the preset device that is abnormal in sequence.

7. A power management device, characterized in that, The control box configured in any one of the power management systems as described in claims 1-5, the device comprising: The detection data receiving module is used to acquire detection data corresponding to multiple preset devices associated with the autonomous driving function. The relay control module is used to determine whether the corresponding preset device is abnormal based on the detection data. If an abnormality is found, it sequentially outputs an open signal and an closed signal to the relay corresponding to the preset device that is abnormal.

8. A vehicle, characterized in that, The power management system is configured as described in any one of claims 1-5, wherein the control box in the power management system includes: At least one processor; and A memory communicatively connected to the at least one processor; wherein, The memory stores a computer program that can be executed by the at least one processor, the computer program being executed by the at least one processor to enable the at least one processor to perform the power management method of claim 6.

9. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer instructions that cause a processor to execute the power management method of claim 6.

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