Double-electric-rail circuit, power supply method and device, electronic equipment and storage medium

Abstract

The invention relates to a double-electric-rail circuit, a power supply method and device, electronic equipment and a storage medium, and relates to the technical field of vehicles. According to the main technical scheme, one end of a positive-voltage vehicle body power rail is connected with a positive-voltage vehicle body load power source, and the other end of the positive-voltage vehicle body power rail is connected with a system high-voltage power source; one end of the negative-voltage vehicle body power rail is connected with the negative-voltage vehicle body load power supply, and the other end of the negative-voltage vehicle body power rail is connected with the system high-voltage power supply; one end of the vehicle body grounding wire is connected with the system high-voltage power supply, and the other end is grounded; one end of the load is connected with the vehicle body grounding wire, and the other end of the load is connected with the positive voltage vehicle body power rail or the negative voltage vehicle body power rail through switch control. By adding the negative power supply to supply power, the positive and negative rotation control of the motor can be realized without depending on a current direction switching circuit, material devices required by the current direction switching circuit are saved, and the material cost is effectively reduced.

Description

Technical Field

[0001] The present disclosure relates to the field of vehicle technology, and in particular to a dual-rail circuit, a power supply method, a device, an electronic device, and a storage medium. Background Art

[0002] At present, the body loads of electric passenger vehicles are basically powered by a single power rail, and the load equipment is connected between the power rail and the body back to ground to form a loop.

[0003] When this power supply scheme drives the load on the vehicle body that needs to move in the reverse direction, it is necessary to use a current direction switching circuit (such as an H-bridge circuit) to convert the forward current into a reverse current, thereby achieving reverse drive of the load. In this method, the cost of the power device of the current direction switching circuit and its pre-driver chip is relatively high. At the same time, the wiring harness also needs to connect both pins of the motor to the control board, resulting in high costs for the wiring harness and connector. Summary of the invention

[0004] The present disclosure provides a dual-rail circuit, a power supply method, a device, an electronic device and a storage medium, the main purpose of which is to solve the problem of high cost of power devices and pre-driver chips thereof.

[0005] According to a first aspect of the present disclosure, a dual-rail circuit is provided, comprising:

[0006] A positive voltage body power rail, a negative voltage body power rail, a body ground, a load, a system high voltage power supply, a positive voltage body load power supply, and a negative voltage body load power supply;

[0007] One end of the positive voltage body power rail is connected to the positive voltage body load power supply, and the other end is connected to the system high voltage power supply;

[0008] One end of the negative voltage body power rail is connected to the negative voltage body load power supply, and the other end is connected to the system high voltage power supply;

[0009] One end of the vehicle body grounding wire is connected to the system high voltage power supply, and the other end is grounded;

[0010] One end of the load is connected to the vehicle body ground wire, and the other end is connected to the positive voltage vehicle body power rail or the negative voltage vehicle body power rail through switch control.

[0011] Optionally, the switch further comprises: a first hysteresis comparator, a first switch, a second hysteresis comparator and a second switch;

[0012] One end of the first hysteresis comparator is connected to the vehicle body controller, the other end is connected to the first end of the first switch, the second end of the first switch is connected to the positive voltage vehicle body power rail, and the third end of the first switch is connected to the load; wherein the first hysteresis comparator is used to control the closing of the first switch according to the control signal; the first switch is used to control the load to be connected to the positive voltage vehicle body power rail;

[0013] One end of the second hysteresis comparator is connected to the body controller, the other end is connected to the first end of the second switch, the second end of the second switch is connected to the negative voltage body power rail, and the third end of the second switch is connected to the load; wherein the second hysteresis comparator is used to control the closing of the second switch according to the control signal; and the second switch is used to control the load to be connected to the negative voltage body power rail.

[0014] According to a second aspect of the present disclosure, a control method for a dual-rail circuit is provided. The dual-rail circuit is the circuit described in the first aspect, comprising:

[0015] Obtaining a control signal, wherein the control signal is used to control the rotation direction of the motor;

[0016] The first switch or the second switch is controlled to be closed according to the control signal, and the motor is powered based on the power rail connected by the closed first switch or the second switch.

[0017] Optionally, when the control signal is for controlling the motor to rotate forward, controlling the corresponding switch to close according to the control signal, and supplying power based on the power rail corresponding to the closed switch includes:

[0018] According to the control signal, the first switch is controlled to be closed, and the motor is powered by the positive voltage body power rail connected to the first switch.

[0019] Optionally, when the control signal is for controlling the motor to reverse, controlling the corresponding switch to close according to the control signal, and supplying power based on the power rail corresponding to the closed switch includes:

[0020] According to the control signal, the second switch is controlled to be closed, and the motor is powered by the negative voltage body power rail connected to the second switch.

[0021] According to a third aspect of the present disclosure, a control device for a dual-rail circuit is provided, comprising:

[0022] Optionally, the dual-rail circuit is the circuit according to claim 1 or 2, and the device comprises:

[0023] An acquisition unit, used for acquiring a control signal, wherein the control signal is used for controlling the rotation direction of the motor;

[0024] A control unit is used to control the first switch or the second switch to close according to the control signal, and to supply power to the motor based on the power rail connected to the closed first switch or the second switch; wherein different power rails are connected to different power sources.

[0025] Optionally, when the control signal is to control the motor to rotate forward, the control unit is further used to:

[0026] According to the control signal, the first switch is controlled to be closed, and the motor is powered by the positive voltage body power rail connected to the first switch.

[0027] Optionally, when the control signal is for controlling the motor to reverse, the control unit further includes:

[0028] According to the control signal, the second switch is controlled to be closed, and the motor is powered by the negative voltage body power rail connected to the second switch.

[0029] According to a fourth aspect of the present disclosure, a vehicle is provided, the vehicle comprising a power supply device for a dual-rail circuit as provided in the third aspect.

[0030] According to a fifth aspect of the present disclosure, there is provided an electronic device, including:

[0031] at least one processor; and

[0032] a memory communicatively connected to the at least one processor; wherein,

[0033] The memory stores instructions that can be executed by the at least one processor, and the instructions are executed by the at least one processor to enable the at least one processor to perform the method described in the first aspect.

[0034] According to a sixth aspect of the present disclosure, a non-transitory computer-readable storage medium storing computer instructions is provided, wherein the computer instructions are used to enable the computer to execute the method described in the first aspect above.

[0035] According to a seventh aspect of the present disclosure, a computer program product is provided, comprising a computer program, wherein when the computer program is executed by a processor, the computer program implements the method as described in the first aspect above.

[0036] The dual-rail circuit, power supply method, device, electronic device and storage medium provided by the present disclosure have the following main technical solutions: one end of the positive voltage body power rail is connected to the positive voltage body load power supply, and the other end is connected to the system high voltage power supply; one end of the negative voltage body power rail is connected to the negative voltage body load power supply, and the other end is connected to the system high voltage power supply; one end of the body ground wire is connected to the system high voltage power supply, and the other end is grounded; one end of the load is connected to the body ground wire, and the other end is connected to the positive voltage body power rail or the negative voltage body power rail through switch control. Compared with the related art, the embodiment of the present application can realize the forward and reverse control of the motor by adding a negative power supply, without relying on the current direction switching circuit, saving the material devices required for the current direction switching circuit, and effectively reducing the material cost.

[0037] 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 application, nor is it intended to limit the scope of the present application. Other features of the present application will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] The accompanying drawings are used to better understand the present solution and do not constitute a limitation of the present disclosure.

[0039] Figure 1 A schematic diagram of the structure of a dual-rail circuit provided by an embodiment of the present disclosure;

[0040] Figure 2 A schematic diagram of the structure of a half-bridge circuit provided by an embodiment of the present disclosure;

[0041] Figure 3 A schematic flow chart of a power supply method for a dual-rail circuit provided in an embodiment of the present disclosure;

[0042] Figure 4 A schematic diagram of the structure of a power supply device for a dual-rail circuit provided in an embodiment of the present disclosure;

[0043] Figure 5 A schematic block diagram of an exemplary electronic device provided for an embodiment of the present disclosure. DETAILED DESCRIPTION

[0044] The following is a description of exemplary embodiments of the present disclosure in conjunction with the accompanying drawings, including various details of the embodiments of the present disclosure to facilitate understanding, which should be considered as merely exemplary. Therefore, it should be recognized by those of ordinary skill in the art that various changes and modifications may be made to the embodiments described herein without departing from the scope and spirit of the present disclosure. Similarly, for the sake of clarity and conciseness, descriptions of well-known functions and structures are omitted in the following description.

[0045] The following describes a dual-rail circuit, a power supply method, an apparatus, an electronic device, and a storage medium according to embodiments of the present disclosure with reference to the accompanying drawings.

[0046] The present disclosure provides a switch circuit. Figure 1 A schematic diagram of a dual-rail circuit provided by an embodiment of the present disclosure is shown in FIG. Figure 1 As shown, the dual-rail circuit includes: a positive voltage body power rail 11, a negative voltage body power rail 12, a body ground wire 13, a load 14, a system high voltage power supply 15, a positive voltage body load power supply 16 and a negative voltage body load power supply 17;

[0047] The positive voltage body power rail 11 is a power bus, which is used to provide positive voltage power to various body electrical devices of the vehicle; the negative voltage body power rail 12 is a power bus, which is used to provide negative voltage power to various body electrical devices of the vehicle; the body grounding wire 13 is a conductive line in the vehicle electrical system, which is used to establish an electrical connection between the body and the ground to prevent voltage abnormalities and electromagnetic interference; the load 14 is a device or component that consumes electrical energy; the system high voltage power supply 15 is used to supply high voltage electrical energy to specific electrical equipment or systems, and in this solution, it is used to power the positive voltage body load power supply 16 and the negative voltage body load power supply 17; the positive voltage body load power supply 16 is used to provide positive voltage electrical energy to the body load equipment, which can be a +12V voltage power supply or a +24V voltage power supply, and can be used to power conventional single power loads such as controllers, switches, etc. Specifically, the voltage value of the voltage power supply is not limited in the embodiment of the present application; the negative voltage body load power supply 17 is used to provide negative voltage electrical energy to the body load equipment; it can be used to power conventional single power loads such as lights, blowers, etc. that are controlled on and off by relays.

[0048] One end of the positive voltage body power rail 11 is connected to the positive voltage body load power supply 16, and the other end is connected to the system high voltage power supply 15; the positive voltage body power rail 11 is a wire in the vehicle electrical system, one end of which is connected to the positive voltage body load power supply 16, so that a positive voltage can be provided to the load equipment on the vehicle body; the other end is connected to the system high voltage power supply 15, so that it can obtain power supply from the system high voltage power supply.

[0049] One end of the negative voltage body power rail 12 is connected to the negative voltage body load power supply 17, and the other end is connected to the system high voltage power supply 15; similarly, the negative voltage body power rail 12 is another wire, one end of which is connected to the negative voltage body load power supply 17, and is used to supply negative voltage to the load equipment on the body. The other end is connected to the system high voltage power supply 15 to obtain the power of the system high voltage power supply.

[0050] In one possible implementation of the embodiment of the present application, the system high-voltage power supply 15 may be a battery or a generator of the vehicle, which provides the electrical energy required by the vehicle electrical system; specifically, the embodiment of the present application does not limit the type of this power supply.

[0051] It should be noted that Figure 1 The positive voltage body power rail and the negative voltage body power rail are described using 12V as an example, which is not a specific limitation on the specific voltage and can also be set to 24V. The embodiment of the present application does not limit the voltage.

[0052] One end of the vehicle body grounding wire 13 is connected to the system high voltage power supply 15, and the other end is grounded; the vehicle body grounding wire 13 is a wire connected to the ground, one end of which is connected to the system high voltage power supply 15, and the other end is grounded. This ensures that other electrical devices on the vehicle body have a good grounding connection with the ground.

[0053] like Figure 1 As shown, the loads in the vehicle can be evenly distributed and connected to the positive voltage body power rail or the negative voltage body power rail, so as to reasonably distribute the loads and optimize the use efficiency of the two power supplies. For example, pure load electrical appliances can be connected to the negative voltage body power rail, and control electrical appliances can be connected to the positive voltage body power rail, so as to separate the power load from the control load, and isolate the devices with relatively large interference while evenly distributing the load, thereby reducing interference to the circuit.

[0054] Please continue reading Figure 1 ,like Figure 1 As shown, one end of the load 14 is connected to the vehicle body ground wire 13, and the other end is connected to the positive voltage vehicle body power rail 11 or the negative voltage vehicle body power rail 12 through switch control. By controlling the state of the switch, it can be selected whether the load is powered by a positive voltage or a negative voltage. For example, when the load is an electric motor, when the switch is connected to the positive voltage vehicle body power rail 11, the current flows in the positive direction through the positive voltage vehicle body power rail-electric motor-body ground wire, so that the vehicle moves forward; and when the switch is connected to the negative voltage vehicle body power rail 12, the current flows in the reverse direction through the negative voltage vehicle body power rail-electric motor-body ground wire, so that the vehicle moves backward; it should be noted that this description is only an exemplary description and is not a specific limitation on the load type.

[0055] In one implementable method of the embodiment of the present application, through the combination of these power rails and ground wires, the vehicle electrical system can realize flexible power supply to the load equipment; whether it is positive voltage or negative voltage, it can be selected according to the requirements of the load equipment, and ensure safe and reliable power distribution, meet the vehicle electrical system's requirements for different power sources, provide a stable power supply, and enable the normal operation of various electrical equipment of the vehicle.

[0056] The dual-rail circuit provided by the present disclosure has the following main technical solutions: one end of the positive voltage body power rail is connected to the positive voltage body load power supply, and the other end is connected to the system high voltage power supply; one end of the negative voltage body power rail is connected to the negative voltage body load power supply, and the other end is connected to the system high voltage power supply; one end of the body ground wire is connected to the system high voltage power supply, and the other end is grounded; one end of the load is connected to the body ground wire, and the other end is connected to the positive voltage body power rail or the negative voltage body power rail through switch control. Compared with the related art, the embodiment of the present application can realize the forward and reverse control of the motor by adding a negative power supply, without relying on the current direction switching circuit, saving the material devices required for the current direction switching circuit, and effectively reducing the material cost.

[0057] In one possible implementation of the present application, the forward and reverse rotation of the load is controlled by a half bridge. Figure 2 , Figure 2 A schematic diagram of the structure of a half-bridge circuit provided in an embodiment of the present application, wherein the switch comprises: a first hysteresis comparator 18, a first switch 19, a second hysteresis comparator 110 and a second switch 111;

[0058] The first hysteresis comparator 18 is a circuit device used to compare two voltage signals and generate an output signal to indicate which voltage signal is higher. The first hysteresis comparator is characterized by a hysteresis function, that is, when the change of the input signal exceeds a certain threshold, the output signal will flip, thereby providing a more stable comparison result. The first switch 19 is usually an electronic switch that can open or close the current path in the circuit through a control signal. Its function is to connect or disconnect the circuit when necessary to achieve circuit control and regulation. The first switch can be a MOSFET (metal oxide semiconductor field effect transistor) switch or a BJT (bipolar transistor) switch. In this application, the switch type is MOSFET switch as an example for explanation, but this narrative method is not a specific limitation on the specific switch type.

[0059] For the related introduction of the second hysteresis comparator 110 and the second switch 111 , please refer to the related description of the first hysteresis comparator 18 and the first switch 19 , which will not be described in detail in the embodiment of the present application.

[0060] One end of the first hysteresis comparator 18 is connected to the body controller, and the other end is connected to the first end of the first switch 19, the second end of the first switch 19 is connected to the positive voltage body power rail 16, and the third end of the first switch 19 is connected to the load 14; wherein, the first hysteresis comparator 18 is used to control the closing of the first switch 19 according to a control signal; the first switch 19 is used to control the connection between the load 14 and the positive voltage body power rail 16; the body controller is used to control and monitor the operation of the body electrical system. In an achievable method of an embodiment of the present application, the body controller is used to issue a control instruction according to the movement requirements of the vehicle to control the forward or reverse rotation of the drive load.

[0061] One end of the second hysteresis comparator 110 is connected to the body controller, and the other end is connected to the first end of the second switch 111, the second end of the second switch 111 is connected to the negative voltage body power rail 11, and the third end of the second switch is connected to the load; wherein, the second hysteresis comparator 110 is used to control the closing of the second switch 111 according to a control signal; the second switch 111 is used to control the load 14 to be connected to the negative voltage body power rail 17.

[0062] Through the above connection method, the vehicle body electrical system can achieve precise power supply control for the load device. Through the signal input of the vehicle body controller, the first hysteresis comparator 18 and the second hysteresis comparator 110 can transmit positive voltage or negative voltage to the load device as needed. This connection method not only provides power supply control for the load device, but also ensures the safety and stability of the vehicle body electrical system.

[0063] In one possible implementation of the present application, please continue to refer to Figure 2 ,like Figure 2 As shown in the figure, PWM1 and PWM2 are control signals, U1 and U2 are comparator ICs in BCM, which are powered by ±12V dual power rails, so their output signals are ±12V level; according to the principle of the comparator circuit, adjusting Vth1 and Vth2 can change the trigger threshold, adjusting R1 and R2 as well as R3 and R4 can change the hysteresis characteristics of the comparator, and adjusting the above parameters can change the PWM waveform of the output points Gate1 and Gate2 to adjust the driving characteristics. Q1 and Q2 are NMOS and PMOS respectively. When Gate1 is +12V, Q1 is turned on, and when Gate1 is -12V, Q1 is turned off; when Gate2 is +12V, Q2 is turned off, and when Gate2 is -12V, Q2 is turned on. Therefore, the opening and closing of Q1 and Q2 can be controlled by the control signals PWM1 and PWM2.

[0064] Figure 3A schematic flow chart of a power supply method for a dual-rail circuit provided in an embodiment of the present disclosure, wherein the dual-rail circuit is the circuit described in the first aspect above, including:

[0065] Step 201, obtaining a control signal, wherein the control signal is used to control the rotation direction of the motor.

[0066] In one possible implementation method of the embodiment of the present application, a control signal is generally generated by a controller or other control device of the vehicle. The control signal is used to control the rotation direction of the motor. The control signal may be a digital signal or an analog signal, depending on the design and requirements of the control system. The embodiment of the present application does not limit this. The control signal may be generated based on the operating status of the vehicle, user input or other sensor signals. For example, when the user shifts the vehicle gear into reverse gear, the control information is determined to control the motor to reverse, etc. It should be noted that this narrative method is only an exemplary description and is not a specific limitation on specific control information.

[0067] Step 202: Control the first switch or the second switch to close according to the control signal, and supply power to the motor based on the power rail connected to the closed first switch or the second switch.

[0068] In one implementable method of the embodiment of the present application, the control signal is used to control the rotation direction of the motor. The rotation direction of the motor is determined by the direction of the current flowing through the motor. According to the state of the control signal, the first switch or the second switch is selected to be closed, that is, the forward and reverse rotation of the motor is controlled; the correspondence between the rotation direction of the motor and the first switch and the second switch is configured in advance. For example, if the control signal is used to control the forward rotation of the motor, the first switch is closed and the second switch is opened; if the control signal is used to control the reverse rotation of the motor, the first switch is opened and the second switch is closed; in actual use, the switching states of the first switch and the second switch can be determined according to the control signal.

[0069] The switch can be a mechanical switch such as a relay, a push button switch or an electronic switch such as a MOSFET switch or a BJT switch; by controlling the closing of the switch, the motor is connected to the corresponding power rail to power the motor; by controlling the closing and opening of the first switch or the second switch, control operations such as starting, stopping, forward rotation, and reverse rotation of the motor can be achieved.

[0070] The power supply method of the dual-rail circuit provided by the present disclosure mainly includes the following technical solutions: one end of the positive voltage body power rail is connected to the positive voltage body load power supply, and the other end is connected to the system high voltage power supply; one end of the negative voltage body power rail is connected to the negative voltage body load power supply, and the other end is connected to the system high voltage power supply; one end of the body ground wire is connected to the system high voltage power supply, and the other end is grounded; one end of the load is connected to the body ground wire, and the other end is connected to the positive voltage body power rail or the negative voltage body power rail through switch control. Compared with the related art, the embodiment of the present application can realize the forward and reverse control of the motor by adding a negative power supply, without relying on the current direction switching circuit, saving the material devices required for the current direction switching circuit, and effectively reducing the material cost.

[0071] In one implementable method of the embodiment of the present application, control information is divided into three types. The first type is a control signal for controlling the motor to rotate forward, the second type is a control signal for controlling the motor to rotate reversely, and the third type is a control signal for controlling the motor to stop rotating. Therefore, when the control signal is for controlling the motor to rotate forward, the first switch is controlled to close according to the control signal, and power is supplied based on the positive voltage body power rail.

[0072] When the control signal is for controlling the motor to reverse, the second switch is controlled to close according to the control signal, and power is supplied based on the negative voltage body power rail.

[0073] When the control signal is to control the motor to reverse, it is necessary to control the current to flow through the motor in the opposite direction, control the second switch connected to the negative voltage body power rail to close, and provide power to the motor based on the negative voltage body power rail, so as to realize the reverse operation of the motor.

[0074] When the control information is to control the motor to stop rotating, the first switch and the second switch are both controlled to be disconnected to stop power supply.

[0075] In one possible implementation of the present application, please continue to refer to Figure 2 ,by Figure 2 Take the first hysteresis comparator in as an example to illustrate, when PWM1 is higher than Vth1, the comparator outputs PWM1, that is, a high level, and the first switch is closed; when PWM1 is lower than Vth1, the comparator outputs Vth1, that is, a low level, and the first switch is opened; it should be noted that Vth1 is a preset value, which can be set according to experience in practical applications, and the embodiments of the present application are not limited to this.

[0076] The effects of the embodiments of the present application include:

[0077] 1. Motor loads that require forward and reverse control can be driven only by half-bridges. The corresponding power devices and their driver chips, PCB area, connector pins, and wiring harnesses can be halved, effectively reducing costs. Half-bridges have fewer drive signals and simpler control logic.

[0078] 2. It has no impact on the load of existing common power supply solutions and has little impact on the wiring harness architecture.

[0079] Corresponding to the above-mentioned dual-rail circuit power supply method, the present invention also provides a dual-rail circuit power supply device. Since the device embodiment of the present invention corresponds to the above-mentioned method embodiment, the details not disclosed in the device embodiment can be referred to the above-mentioned method embodiment, and will not be repeated in the present invention.

[0080] Figure 4 A schematic diagram of a power supply device for a dual-rail circuit provided in an embodiment of the present disclosure is shown in FIG. Figure 4 As shown, including:

[0081] An acquisition unit 31 is used to acquire a control signal, where the control signal is used to control the rotation direction of the motor;

[0082] The control unit 32 is used to control the corresponding switch to close according to the control signal, and to supply power based on the power rail corresponding to the closed switch.

[0083] The power supply device of the dual-rail circuit provided by the present disclosure has the following main technical solutions: one end of the positive voltage body power rail is connected to the positive voltage body load power supply, and the other end is connected to the system high voltage power supply; one end of the negative voltage body power rail is connected to the negative voltage body load power supply, and the other end is connected to the system high voltage power supply; one end of the body ground wire is connected to the system high voltage power supply, and the other end is grounded; one end of the load is connected to the body ground wire, and the other end is connected to the positive voltage body power rail or the negative voltage body power rail through switch control. Compared with the related art, the embodiment of the present application can realize the forward and reverse control of the motor without relying on the current direction switching circuit by adding a negative power supply, saving the material devices required for the current direction switching circuit, and effectively reducing the material cost.

[0084] Furthermore, in a possible implementation of this embodiment, when the control signal is to control the motor to rotate forward, the control unit 32 is further configured to:

[0085] According to the control signal, the first switch is controlled to be closed, and the motor is powered by the positive voltage body power rail connected to the first switch.

[0086] Furthermore, in a possible implementation of this embodiment, when the control signal is to control the motor to reverse, the control unit 32 further includes:

[0087] According to the control signal, the second switch is controlled to be closed, and the motor is powered by the negative voltage body power rail connected to the second switch.

[0088] It should be noted that the above explanation of the method embodiment is also applicable to the device of this embodiment, and the principle is the same, which is not limited in this embodiment.

[0089] According to an embodiment of the present disclosure, the present disclosure also provides an electronic device, a readable storage medium and a computer program product.

[0090] Figure 5 A schematic block diagram of an example electronic device 400 that can be used to implement an embodiment of the present disclosure is shown. The electronic device is intended to represent various forms of digital computers, such as laptop computers, desktop computers, workstations, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. The electronic device can also represent various forms of mobile devices, such as personal digital processing, cellular phones, smart phones, wearable devices, and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely examples and are not intended to limit the implementation of the present disclosure described and / or required herein.

[0091] like Figure 5 As shown, the device 400 includes a computing unit 401, which can perform various appropriate actions and processes according to a computer program stored in a ROM (Read-Only Memory) 402 or a computer program loaded from a storage unit 408 to a RAM (Random Access Memory) 403. In the RAM 403, various programs and data required for the operation of the device 400 can also be stored. The computing unit 401, the ROM 402, and the RAM 403 are connected to each other via a bus 404. An I / O (Input / Output) interface 405 is also connected to the bus 404.

[0092] A number of components in the device 400 are connected to the I / O interface 405, including: an input unit 406, such as a keyboard, a mouse, etc.; an output unit 407, such as various types of displays, speakers, etc.; a storage unit 408, such as a disk, an optical disk, etc.; and a communication unit 409, such as a network card, a modem, a wireless communication transceiver, etc. The communication unit 409 allows the device 400 to exchange information / data with other devices through a computer network such as the Internet and / or various telecommunication networks.

[0093] The computing unit 401 may be a variety of general and / or special processing components with processing and computing capabilities. Some examples of the computing unit 401 include, but are not limited to, a CPU (Central Processing Unit), a GPU (Graphic Processing Units), various dedicated AI (Artificial Intelligence) computing chips, various computing units running machine learning model algorithms, a DSP (Digital Signal Processor), and any appropriate processor, controller, microcontroller, etc. The computing unit 401 performs the various methods and processes described above, such as a power supply method for a dual rail circuit. For example, in some embodiments, the power supply method for a dual rail circuit may be implemented as a computer software program, which is tangibly contained in a machine-readable medium, such as a storage unit 408. In some embodiments, part or all of the computer program may be loaded and / or installed on the device 400 via the ROM 402 and / or the communication unit 409. When the computer program is loaded into the RAM 403 and executed by the computing unit 401, one or more steps of the method described above may be performed. Alternatively, in other embodiments, the computing unit 401 may be configured to execute the aforementioned power supply method for the dual-rail circuit in any other appropriate manner (for example, by means of firmware).

[0094] Various embodiments of the systems and techniques described above herein may be implemented in digital electronic circuit systems, integrated circuit systems, FPGAs (Field Programmable Gate Arrays), ASICs (Application-Specific Integrated Circuits), ASSPs (Application Specific Standard Products), SOCs (System On Chips), CPLDs (Complex Programmable Logic Devices), computer hardware, firmware, software, and / or combinations thereof. These various embodiments may include: being implemented in one or more computer programs that may be executed and / or interpreted on a programmable system including at least one programmable processor that may be a dedicated or general-purpose programmable processor that may 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.

[0095] The program code for implementing the method of the present disclosure may be written in any combination of one or more programming languages. These program codes may be provided to a processor or controller of a general-purpose computer, a special-purpose computer, or other programmable data processing device, so that the program code, when executed by the processor or controller, enables the functions / operations specified in the flow chart and / or block diagram to be implemented. The program code may be executed entirely on the machine, partially on the machine, partially on the machine and partially on a remote machine as a stand-alone software package, or entirely on a remote machine or server.

[0096] In the context of the present disclosure, a machine-readable medium may be a tangible medium that may contain or store a program for use by or in conjunction with an instruction execution system, device, or equipment. A machine-readable medium may be a machine-readable signal medium or a machine-readable storage medium. A machine-readable medium may include, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, device, or device, or any suitable combination of the foregoing. More specific examples of machine-readable storage media may include an electrical connection based on one or more lines, a portable computer disk, a hard disk, a RAM, a ROM, an EPROM (Electrically Programmable Read-Only-Memory) or a flash memory, an optical fiber, a CD-ROM (Compact Dis sc Read-Only Memory), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

[0097] To provide interaction with a user, the systems and techniques described herein can be implemented on a computer 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 a pointing device (e.g., a mouse or trackball), through which the user can provide input to the computer. 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).

[0098] The systems and techniques described herein may be implemented in a computing system that includes backend 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 frontend components (e.g., a user computer with a graphical user interface or a 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 backend components, middleware components, or frontend components. The components of the system may be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: LAN (Local Area Network), WAN (Wide Area Network), the Internet, and blockchain networks.

[0099] A computer system may include a client and a server. The client and the server are generally remote from each other and usually interact through a communication network. The relationship between the client and the server is generated by computer programs running on the corresponding computers and having a client-server relationship with each other. The server may be a cloud server, also known as a cloud computing server or cloud host, which is a host product in the cloud computing service system to solve the defects of difficult management and weak business scalability in traditional physical hosts and VPS services ("Virtual Private Server", or "VPS" for short). The server may also be a server of a distributed system, or a server combined with a blockchain.

[0100] It should be noted that artificial intelligence is a discipline that studies how computers can simulate certain human thought processes and intelligent behaviors (such as learning, reasoning, thinking, planning, etc.), and includes both hardware-level and software-level technologies. Artificial intelligence hardware technologies generally include technologies such as sensors, dedicated artificial intelligence chips, cloud computing, distributed storage, and big data processing; artificial intelligence software technologies mainly include computer vision technology, speech recognition technology, natural language processing technology, as well as machine learning / deep learning, big data processing technology, knowledge graph technology, and other major directions.

[0101] It should be understood that the various forms of processes shown above can be used to reorder, add or delete steps. For example, the steps recorded in this disclosure can be executed in parallel, sequentially or in different orders, as long as the desired results of the technical solutions disclosed in this disclosure can be achieved, and this document does not limit this.

[0102] The above specific implementations do not constitute a limitation on the protection scope of the present disclosure. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modification, equivalent substitution and improvement made within the spirit and principle of the present disclosure shall be included in the protection scope of the present disclosure.

Claims

1. A dual rail circuit, characterized in that: include: A positive voltage body power rail, a negative voltage body power rail, a body ground, a load, a system high voltage power supply, a positive voltage body load power supply, and a negative voltage body load power supply; One end of the positive voltage body power rail is connected to the positive voltage body load power supply, and the other end is connected to the system high voltage power supply; One end of the negative voltage body power rail is connected to the negative voltage body load power supply, and the other end is connected to the system high voltage power supply; One end of the vehicle body grounding wire is connected to the system high voltage power supply, and the other end is grounded; One end of the load is connected to the vehicle body ground line, and the other end is connected to the positive voltage vehicle body power rail or the negative voltage vehicle body power rail through a switch.

2. The circuit according to claim 1, characterized in that The switch further comprises: a first hysteresis comparator, a first switch, a second hysteresis comparator and a second switch; One end of the first hysteresis comparator is connected to the vehicle body controller, the other end is connected to the first end of the first switch, the second end of the first switch is connected to the positive voltage vehicle body power rail, and the third end of the first switch is connected to the load; wherein the first hysteresis comparator is used to control the closing of the first switch according to the control signal; the first switch is used to control the load to be connected to the positive voltage vehicle body power rail; One end of the second hysteresis comparator is connected to the body controller, the other end is connected to the first end of the second switch, the second end of the second switch is connected to the negative voltage body power rail, and the third end of the second switch is connected to the load; wherein the second hysteresis comparator is used to control the closing of the second switch according to the control signal; and the second switch is used to control the load to be connected to the negative voltage body power rail.

3. A power supply method for a dual-rail circuit, characterized in that: The dual-rail circuit is the circuit according to claim 1 or 2, and the method comprises: Obtaining a control signal, wherein the control signal is used to control the rotation direction of the motor; The first switch or the second switch is controlled to be closed according to the control signal, and the motor is powered based on the power rail connected by the closed first switch or the second switch.

4. The method according to claim 3, characterized in that When the control signal is for controlling the motor to rotate forward, controlling the corresponding switch to close according to the control signal, and supplying power based on the power rail corresponding to the closed switch includes: According to the control signal, the first switch is controlled to be closed, and the motor is powered by the positive voltage body power rail connected to the first switch.

5. The method according to claim 3, characterized in that: When the control signal is for controlling the motor to reverse, controlling the corresponding switch to close according to the control signal, and supplying power based on the power rail corresponding to the closed switch includes: According to the control signal, the second switch is controlled to be closed, and the motor is powered by the negative voltage body power rail connected to the second switch.

6. A power supply device for a dual-rail circuit, characterized in that: The dual-rail circuit is the circuit according to claim 1 or 2, and the device comprises: An acquisition unit, used for acquiring a control signal, wherein the control signal is used for controlling the rotation direction of the motor; A control unit is used to control the first switch or the second switch to close according to the control signal, and to supply power to the motor based on the power rail connected to the closed first switch or the second switch; wherein different power rails are connected to different power sources.

7. A vehicle, characterized in that: The vehicle comprises the power supply device of the dual-rail circuit as claimed in claim 6.

8. An electronic device, characterized in that: include: at least one processor; as well as a memory communicatively connected to the at least one processor; wherein, The memory stores instructions that can be executed by the at least one processor, and the instructions are executed by the at least one processor to enable the at least one processor to perform the method according to any one of claims 3 to 5.

9. A non-transitory computer-readable storage medium storing computer instructions, characterized in that: The computer instructions are used to cause the computer to execute the method according to any one of claims 3-5.

10. A computer program product, characterized in that The invention comprises a computer program which, when executed by a processor, implements the method according to any one of claims 3 to 5.

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