Dual-redundancy power supply circuit control method, dual-redundancy power supply circuit and new energy automobile

Abstract

The invention discloses a dual-redundancy power supply circuit control method, a dual-redundancy power supply circuit and a new energy automobile. The dual-redundant power supply circuit comprises a main power supply circuit and a redundant standby power supply circuit, the main power supply circuit is electrically connected with the redundant standby power supply circuit, and the control method of the dual-redundant power supply circuit comprises the following steps: acquiring a main power supply side voltage value of an input end of the main power supply circuit, after it is determined that main power supply side power supply is abnormal according to the main power supply side voltage value, a main power supply circuit is controlled to stop supplying power to loads and safety parts of the new energy automobile; and switching on the redundant standby power supply circuit, and controlling the redundant standby power supply circuit to supply power to the safety component. According to the invention, the dual-redundancy requirement of functional safety on the power supply in the adaptive intelligent vehicle is realized, and the fault state monitoring and fault processing of dual-path / multi-path power supply input are satisfied, so that the normal operation of the vehicle is controlled.

Description

Technical Field

[0001] The present invention relates to the technical field of new energy vehicles, and in particular to a dual-redundant power supply circuit control method, a dual-redundant power supply circuit, and a new energy vehicle. Background Art

[0002] Redundant power refers to adding a certain number of backup power sources to the power system design to ensure automatic switching to the backup power source in the event of a primary power failure, maintaining normal equipment operation. Therefore, redundant power, also known as backup power, offers advantages such as high reliability and stability. Currently, due to the changing safety requirements for low-voltage power systems in commercial vehicles, such as intelligent driving models, there is an urgent need for dual-redundant power supply circuit control solutions. Summary of the Invention

[0003] The present invention provides a dual-redundant power supply circuit control method, a dual-redundant power supply circuit, and a new energy vehicle to solve the current problems of a lack of power switching and redundant backup mechanisms, which easily lead to the loss of power and braking functions and controller shutdown in the event of a single point failure.

[0004] According to one aspect of the present invention, a dual redundant power supply circuit control method is provided. The dual redundant power supply circuit includes a main power supply circuit and a redundant backup power supply circuit. The main power supply circuit is electrically connected to the redundant backup power supply circuit. The dual redundant power supply circuit control method includes:

[0005] Obtaining a main power supply side voltage value at an input end of a main power supply circuit, and after determining that a main power supply side power supply abnormality is present based on the main power supply side voltage value, controlling the main power supply circuit to stop supplying power to various loads and safety components of the new energy vehicle;

[0006] The redundant backup power supply circuit is turned on to control the redundant backup power supply circuit to supply power to the safety components.

[0007] Optionally, determining a power supply abnormality on the main power supply side based on the voltage value on the main power supply side includes:

[0008] If the voltage value on the main power supply side is higher than the first voltage threshold, or the voltage value on the main power supply side is lower than the second voltage threshold, it is determined that the power supply on the main power supply side is abnormal;

[0009] The first voltage threshold is greater than the second voltage threshold.

[0010] Optionally, the output end of the main power supply circuit is electrically connected to each load of the new energy vehicle and the first load channel of the safety component;

[0011] Control the main power supply circuit to stop supplying power to various loads and safety components of new energy vehicles, including:

[0012] The main power supply circuit is controlled to stop supplying power to the first load channel of each load and safety component of the new energy vehicle.

[0013] Optionally, the safety component further includes a second load channel;

[0014] Control the redundant backup power supply circuit to supply power to safety components, including:

[0015] The redundant backup power supply circuit is controlled to supply power to the second load channel of the safety component.

[0016] Optionally, the main power supply circuit includes an isolation module;

[0017] Turn on the redundant backup power supply circuit, including:

[0018] By controlling the isolation module to be turned on, the redundant backup power supply circuit is controlled to be turned on.

[0019] Optionally, the dual redundant power supply circuit control method further includes:

[0020] Report abnormal power supply failures on the main power supply side of the main power supply circuit to the remote control platform.

[0021] According to another aspect of the present invention, a dual redundant power supply circuit is provided. The dual redundant power supply circuit includes a main power supply circuit and a redundant backup power supply circuit. The main power supply circuit is electrically connected to the redundant backup power supply circuit. The dual redundant power supply circuit can execute the dual redundant power supply circuit control method of any embodiment of the present invention.

[0022] Optionally, the main power supply circuit includes an isolation module, and the isolation module includes a first field effect transistor and a second field effect transistor;

[0023] The drain of the first field effect transistor is electrically connected to the input end of the main power supply circuit, the source of the first field effect transistor is electrically connected to the source of the second field effect transistor, the drain of the second field effect transistor is electrically connected to the positive electrode of the redundant backup power supply circuit, and the negative electrode of the redundant backup power supply circuit is grounded.

[0024] Optionally, the main power supply circuit is controlled to supply power to various loads and safety components of the new energy vehicle, and the first field effect transistor and the second field effect transistor are turned off;

[0025] The redundant backup power supply circuit is controlled to supply power to the safety component, and the first field effect transistor and the second field effect transistor are turned on.

[0026] According to another aspect of the present invention, a new energy vehicle is provided. The new energy vehicle includes a dual redundant power supply circuit according to any embodiment of the present invention.

[0027] The technical solution of the embodiment of the present invention is that the dual redundant power supply circuit includes a main power supply circuit and a redundant backup power supply circuit, the main power supply circuit is electrically connected to the redundant backup power supply circuit, and the dual redundant power supply circuit control method includes: obtaining the main power supply side voltage value of the input end of the main power supply circuit, and after determining that the main power supply side power supply is abnormal based on the main power supply side voltage value, controlling the main power supply circuit to stop supplying power to various loads and safety components of the new energy vehicle; and turning on the redundant backup power supply circuit to control the redundant backup power supply circuit to supply power to the safety components. The present invention realizes the dual redundancy requirement of the power supply for functional safety in the adaptation smart car, meets the fault status monitoring and fault handling of dual / multi-way power input, and thus controls the normal operation of the vehicle.

[0028] It should be understood that the content described in this section is not intended to identify the key or important features of the embodiments of the present invention, nor is it intended to limit the scope of the present invention. Other features of the present invention will become readily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0030] Figure 1 1 is a flow chart of a dual redundant power supply circuit control method provided according to an embodiment of the present invention;

[0031] Figure 2 1 is a schematic structural diagram of a dual redundant power supply circuit provided according to an embodiment of the present invention;

[0032] Figure 3 It is a structural diagram of an electronic device for implementing the dual-redundant power supply circuit control method according to an embodiment of the present invention. DETAILED DESCRIPTION

[0033] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0034] It should be noted that the terms "first", "second", etc. in the description and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0035] Figure 1 The present invention provides a flowchart of a dual-redundant power supply circuit control method. This embodiment is applicable to the case where intelligent driving models are adapted to perform dual-redundant control on low-voltage intelligent power supplies for commercial vehicles. Figure 2 As shown, the dual redundant power supply circuit includes a main power supply circuit and a redundant backup power supply circuit, and the main power supply circuit is electrically connected to the redundant backup power supply circuit. Figure 1 As shown, the dual redundant power supply circuit control method includes:

[0036] S110, obtaining a main power side voltage value of an input end of a main power supply circuit, and after determining that the main power side power supply is abnormal based on the main power side voltage value, controlling the main power supply circuit to stop supplying power to various loads and safety components of the new energy vehicle.

[0037] Continue to see Figure 2 As shown, the output end of the DCDC converter in the new energy vehicle is connected to the input end of the main power supply circuit through the CAN bus, and the output voltage is dynamically adjusted to adapt to different working conditions.

[0038] The voltage value on the main power supply side is the voltage value on the main power supply circuit side, which can be collected in real time through the main power supply circuit. In this embodiment, when the main power supply circuit is used to supply power to various loads and safety components of the new energy vehicle, the first field effect transistor 110 and the second field effect transistor 120 are turned off.

[0039] Specifically, the power supply abnormality on the main power supply side can be determined based on the voltage value on the main power supply side. If the voltage value on the main power supply side is higher than the first voltage threshold, or the voltage value on the main power supply side is lower than the second voltage threshold, the power supply abnormality on the main power supply side is determined; wherein the first voltage threshold is greater than the second voltage threshold.

[0040] Among them, the first voltage threshold and the second voltage threshold can be selected and determined according to the various loads of the new energy vehicle and the power supply voltage range of the safety components. This embodiment does not impose any restrictions on the specific values ​​of the first voltage threshold and the second voltage threshold.

[0041] Furthermore, when the voltage value on the main power supply side is not higher than the first voltage threshold and the voltage value on the main power supply side is not lower than the second voltage threshold, that is, the voltage value on the main power supply side is between the voltage range of the first voltage threshold and the second voltage threshold, it is determined that the power supply on the main power supply side is normal, that is, there is no need to switch between the main and auxiliary power supplies.

[0042] It can be seen that determining that the power supply on the main power supply side is abnormal may indicate that a fault occurs in the main power supply circuit. This embodiment does not impose any restrictions on the specific abnormal power supply on the main power supply side.

[0043] In this embodiment, continue to see Figure 2 As shown, the output end of the main power supply circuit is electrically connected to the first load channels of each load and safety component of the new energy vehicle, respectively. Then, the main power supply circuit is controlled to stop supplying power to each load and safety component of the new energy vehicle. Specifically, the main power supply circuit is controlled to stop supplying power to the first load channels of each load and safety component of the new energy vehicle.

[0044] S120 , turning on the redundant backup power supply circuit to control the redundant backup power supply circuit to supply power to the safety component.

[0045] Among them, the redundant backup power supply circuit can realize its backup power function through energy storage devices such as batteries. Figure 2 As shown, the redundant backup power supply circuit can be controlled by the main power supply circuit to determine whether it is enabled.

[0046] In this embodiment, the power supply channels of the safety components are set to two sets to ensure that when a single-side input power failure of the vehicle occurs, a single-channel output failure of the low-voltage intelligent power controller occurs, or a failure occurs within the assembly, power input / output switching and fault isolation can be performed quickly. Based on this, see Figure 2 As shown, the safety component also includes a second load channel; the redundant backup power supply circuit is controlled to supply power to the safety component, specifically: after the redundant backup power supply circuit is turned on, the redundant backup power supply circuit can be controlled to supply power to the second load channel of the safety component.

[0047] Specifically, the main power supply circuit includes an isolation module to ensure that fault isolation can be completed when a single-side power supply fails. That is, the main power supply circuit controls whether the redundant backup power supply circuit is enabled, and controls the redundant backup power supply circuit to be turned on by controlling the isolation module to be turned on.

[0048] On the basis of the above embodiment, after determining that the power supply on the main power supply side is abnormal, the abnormal power supply fault on the main power supply circuit can be reported to the remote control platform.

[0049] The remote control platform can be, but is not limited to, a user terminal or vehicle monitoring background for new energy vehicles. The user terminal can be, but is not limited to, an application terminal such as an application software on a mobile phone, tablet or terminal device. This embodiment does not impose any restrictions on this.

[0050] The technical solution of the embodiment of the present invention is that the dual redundant power supply circuit includes a main power supply circuit and a redundant backup power supply circuit, the main power supply circuit is electrically connected to the redundant backup power supply circuit, and the dual redundant power supply circuit control method includes: obtaining the main power supply side voltage value of the input end of the main power supply circuit, and after determining that the main power supply side is abnormal based on the main power supply side voltage value, controlling the main power supply circuit to stop supplying power to various loads and safety components of the new energy vehicle; turning on the redundant backup power supply circuit, and controlling the redundant backup power supply circuit to supply power to the safety components. The embodiment of the present invention solves the current problems caused by the lack of power switching and redundant backup mechanisms, which easily lead to the loss of power and braking functions and controller shutdown in the event of a single point failure, and realizes the dual redundancy requirements of functional safety for power supplies in smart cars, meets the fault status monitoring and fault handling of dual / multi-way power inputs, and thus controls the normal operation of the vehicle.

[0051] Based on the above embodiment, the functional safety of smart vehicles is decomposed into different assemblies, and the relevant requirements of electric assemblies for low-voltage power systems are investigated. The electric assemblies are systematically classified and summarized according to multiple dimensions such as driving safety, regulatory requirements, and comfort systems, and the power supply requirements are derived. Figure 2 As shown, an embodiment of the present invention further provides a dual redundant power supply circuit, which includes a main power supply circuit and a redundant backup power supply circuit. The main power supply circuit is electrically connected to the redundant backup power supply circuit. The dual redundant power supply circuit can execute the dual redundant power supply circuit control method of the embodiment of the present invention.

[0052] Continue to see Figure 2 As shown, the main power supply circuit includes an isolation module, which includes a first field effect transistor 110 and a second field effect transistor 120; the drain of the first field effect transistor 110 is electrically connected to the input end of the main power supply circuit, the source of the first field effect transistor 110 is electrically connected to the source of the second field effect transistor 120, the drain of the second field effect transistor 120 is electrically connected to the positive electrode of the redundant backup power supply circuit, and the negative electrode of the redundant backup power supply circuit is grounded.

[0053] On the basis of the above, continue to see Figure 2As shown, the main power supply circuit is controlled to supply power to various loads and safety components of the new energy vehicle, and the first field effect transistor 110 and the second field effect transistor 120 are turned off; the redundant backup power supply circuit is controlled to supply power to the safety components, and the first field effect transistor 110 and the second field effect transistor 120 are turned on.

[0054] An embodiment of the present invention further provides a new energy vehicle, which includes the dual redundant power supply circuit according to the embodiment of the present invention.

[0055] The new energy vehicle of the embodiment of the present invention includes a dual redundant power supply circuit, which includes a main power supply circuit and a redundant backup power supply circuit. The main power supply circuit is electrically connected to the redundant backup power supply circuit. The dual redundant power supply circuit control method includes: obtaining the main power supply side voltage value of the input end of the main power supply circuit, and after determining that the main power supply side is abnormal based on the main power supply side voltage value, controlling the main power supply circuit to stop supplying power to various loads and safety components of the new energy vehicle; turning on the redundant backup power supply circuit, and controlling the redundant backup power supply circuit to supply power to the safety components. The embodiment of the present invention solves the current problems caused by the lack of power switching and redundant backup mechanisms, which easily lead to the loss of power and braking functions and controller shutdown in the event of a single point failure. It realizes the dual redundancy requirements of the functional safety of the smart car for the power supply, meets the fault status monitoring and fault handling of the dual / multi-way power input, and thus controls the normal operation of the vehicle.

[0056] Based on the same inventive concept, Figure 3 FIG. 1 shows a schematic diagram of the structure of an electronic device 10 that can be used to implement an embodiment of the present invention. Figure 3 As shown, the electronic device 10 includes at least one processor 11 and a memory, such as a read-only memory (ROM 12) and a random access memory (RAM 13), which are communicatively connected to the at least one processor 11. The memory stores a computer program that can be executed by the at least one processor, and the processor 11 can perform various appropriate actions and processes according to the computer program stored in the read-only memory (ROM 12) or the computer program loaded from the storage unit 18 into the random access memory (RAM 13). Various programs and data required for the operation of the electronic device 10 can also be stored in the RAM 13. The processor 11, ROM 12, and RAM 13 are connected to each other via a bus 14. An I / O (input / output) interface 15 is also connected to the bus 14.

[0057] Multiple components in the electronic device 10 are connected to the I / O interface 15, including an input unit 16, such as a keyboard, a mouse, etc.; an output unit 17, such as various types of displays, speakers, etc.; a storage unit 18, such as a magnetic disk, an optical disk, etc.; and a communication unit 19, such as a network card, a modem, a wireless communication transceiver, etc. The communication unit 19 allows the electronic device 10 to exchange information / data with other devices via a computer network such as the Internet and / or various telecommunication networks.

[0058] The processor 11 can be any general-purpose and / or specialized processing component with processing and computing capabilities. Some examples of the processor 11 include, but are not limited to, a central processing unit (CPU), a graphics processing unit (GPU), various specialized artificial intelligence (AI) computing chips, various processors that run machine learning model algorithms, a digital signal processor (DSP), and any appropriate processor, controller, microcontroller, etc. The processor 11 executes the various methods and processes described above, such as the dual-redundant power supply circuit control method.

[0059] In some embodiments, the dual-redundant power supply circuit control method can be implemented as a computer program tangibly embodied in a computer-readable storage medium, such as storage unit 18. In some embodiments, part or all of the computer program can be loaded and / or installed on electronic device 10 via ROM 12 and / or communication unit 19. When the computer program is loaded into RAM 13 and executed by processor 11, one or more steps of the dual-redundant power supply circuit control method described above can be performed. Alternatively, in other embodiments, processor 11 can be configured to execute the dual-redundant power supply circuit control method in any other appropriate manner (e.g., via firmware).

[0060] Various embodiments of the systems and techniques described herein can be implemented in digital electronic circuit systems, integrated circuit systems, field programmable gate arrays (FPGAs), application specific integrated circuits (ASICs), application specific standard products (ASSPs), system-on-chip systems (SOCs), programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various embodiments can include being implemented in one or more computer programs that are executable and / or interpreted on a programmable system that includes at least one programmable processor, which can be a special purpose or general purpose programmable processor that can receive data and instructions from a storage system, at least one input device, and at least one output device, and transmit data and instructions to the storage system, the at least one input device, and the at least one output device.

[0061] Computer programs for implementing the methods of the present invention may be written in any combination of one or more programming languages. These computer programs may be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device, such that when the computer program is executed by the processor, the functions / operations specified in the flowcharts and / or block diagrams are implemented. The computer program may be executed entirely on the machine, partially on the machine, as a stand-alone software package, partially on the machine and partially on a remote machine, or entirely on a remote machine or server.

[0062] In the context of the present invention, computer-readable storage media can be tangible media that can contain or store a computer program for use with an instruction execution system, device or equipment or used in combination with an instruction execution system, device or equipment. Computer-readable storage media can include but are not limited to electronic, magnetic, optical, electromagnetic, infrared or semiconductor systems, devices or equipment, or any suitable combination of the foregoing. Alternatively, computer-readable storage media can be machine-readable signal media. More specific examples of machine-readable storage media can include electrical connections based on one or more lines, portable computer disks, hard disks, random access memories (RAM), read-only memories (ROM), erasable programmable read-only memories (EPROM or flash memory), optical fibers, portable compact disk read-only memories (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination of the foregoing.

[0063] To provide interaction with a user, the systems and techniques described herein can be implemented on an electronic device having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to the user; and a keyboard and pointing device (e.g., a mouse or trackball) through which the user can provide input to the electronic device. Other types of devices can also be used to provide interaction with the user; for example, the feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user can be received in any form (including acoustic input, voice input, or tactile input).

[0064] The systems and techniques described herein can be implemented in a computing system that includes back-end components (e.g., as a data server), or a computing system that includes middleware components (e.g., an application server), or a computing system that includes front-end components (e.g., a user computer with a graphical user interface or web browser through which a user can interact with implementations of the systems and techniques described herein), or a computing system that includes any combination of such back-end components, middleware components, or front-end components. The components of the system can be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: a local area network (LAN), a wide area network (WAN), a blockchain network, and the Internet.

[0065] A computing system may include clients and servers. The clients and servers are typically remote from each other and typically interact via a communication network. This client-server relationship arises through computer programs running on the respective computers, creating a client-server relationship. The server may be a cloud server, also known as a cloud computing server or cloud host. This server is a hosting product within the cloud computing service ecosystem that addresses the management difficulties and limited scalability of traditional physical hosting and VPS services.

[0066] It should be understood that the various forms of the processes shown above can be used to reorder, add, or delete steps. For example, the steps described in the present invention can be performed in parallel, sequentially, or in a different order, as long as the desired results of the technical solution of the present invention can be achieved. This is not limited herein.

[0067] The above specific embodiments do not limit the scope of protection of the present invention. Those skilled in the art will appreciate that various modifications, combinations, sub-combinations, and substitutions may be made based on design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention are intended to be included within the scope of protection of the present invention.

Claims

1. A dual redundant power supply circuit control method, characterized in that: The dual redundant power supply circuit includes a main power supply circuit and a redundant backup power supply circuit, the main power supply circuit is electrically connected to the redundant backup power supply circuit, and the dual redundant power supply circuit control method includes: Obtaining a main power supply side voltage value at an input end of the main power supply circuit, and after determining that the main power supply side is abnormal based on the main power supply side voltage value, controlling the main power supply circuit to stop supplying power to various loads and safety components of the new energy vehicle; The redundant backup power supply circuit is turned on, and the redundant backup power supply circuit is controlled to supply power to the safety component.

2. The dual redundant power supply circuit control method according to claim 1, wherein: Determining a power supply abnormality on the main power supply side according to the voltage value on the main power supply side includes: If the voltage value on the main power supply side is higher than the first voltage threshold, or the voltage value on the main power supply side is lower than the second voltage threshold, it is determined that the power supply on the main power supply side is abnormal; The first voltage threshold is greater than the second voltage threshold.

3. The dual redundant power supply circuit control method according to claim 1, wherein: The output end of the main power supply circuit is electrically connected to each load of the new energy vehicle and the first load channel of the safety component respectively; Controlling the main power supply circuit to stop supplying power to various loads and safety components of the new energy vehicle includes: The main power supply circuit is controlled to stop supplying power to the first load channel of each load and safety component of the new energy vehicle.

4. The dual redundant power supply circuit control method according to claim 1, wherein: The safety component further includes a second load channel; Controlling the redundant backup power supply circuit to supply power to the safety component includes: The redundant backup power supply circuit is controlled to supply power to the second load channel of the safety component.

5. The dual redundant power supply circuit control method according to claim 1, wherein: The main power supply circuit includes an isolation module; Turning on the redundant backup power supply circuit includes: By controlling the isolation module to be turned on, the redundant backup power supply circuit is controlled to be turned on.

6. The dual redundant power supply circuit control method according to claim 1, wherein: The dual redundant power supply circuit control method further includes: Report the abnormal power supply failure on the main power supply side of the main power supply circuit to the remote control platform.

7. A dual redundant power supply circuit, characterized in that: The dual redundant power supply circuit includes a main power supply circuit and a redundant backup power supply circuit, the main power supply circuit is electrically connected to the redundant backup power supply circuit, and the dual redundant power supply circuit can execute the dual redundant power supply circuit control method described in any one of claims 1-6.

8. The dual redundant power supply circuit according to claim 7, wherein: The main power supply circuit includes an isolation module, and the isolation module includes a first field effect transistor and a second field effect transistor; The drain of the first field effect transistor is electrically connected to the input end of the main power supply circuit, the source of the first field effect transistor is electrically connected to the source of the second field effect transistor, the drain of the second field effect transistor is electrically connected to the positive electrode of the redundant backup power supply circuit, and the negative electrode of the redundant backup power supply circuit is grounded.

9. The dual redundant power supply circuit according to claim 8, characterized in that: Controlling the main power supply circuit to supply power to various loads and safety components of the new energy vehicle, and turning off the first field effect transistor and the second field effect transistor; The redundant backup power supply circuit is controlled to supply power to the safety component, and the first field effect transistor and the second field effect transistor are turned on.

10. A new energy vehicle, characterized in that: The new energy vehicle includes a dual redundant power supply circuit as described in any one of claims 7 to 9.

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