Power supply system, steering system and vehicle

Abstract

The utility model discloses a power supply system, a steering system and a vehicle, and relates to the technical field of vehicles. The power supply system is applied to a vehicle and comprises an energy conversion circuit, an energy storage circuit and a switching circuit, the input end of the energy storage circuit is connected with the output end of the energy conversion circuit; the switching circuit is connected between the output end of the energy storage circuit and the power supply input end of a power utilization system of the vehicle; the energy conversion circuit is used for converting the received mechanical force into electric energy and inputting the electric energy into the energy storage circuit, the energy storage circuit stores the electric energy, and under the condition that the switching circuit communicates with the energy storage circuit and the power utilization system, the energy storage circuit provides power for the power utilization system. Based on the power supply system, under the condition that the power utilization system is the steering assembly and the power battery and the storage battery of the vehicle cannot supply power to the steering assembly of the vehicle, it can be guaranteed that the vehicle steering assembly can still work in an electrified mode, and therefore the vehicle can be steered stably until the vehicle stops.

Description

Technical Field

[0001] The present application relates to the field of vehicle technology, and more specifically, to a power supply system, a steering system and a vehicle. Background Art

[0002] Electric vehicles are gradually becoming the current industry trend. At the same time, people's requirements for the power, stability, safety and comfort of electric vehicles are also increasing.

[0003] Therefore, when the vehicle's power battery and storage battery are unable to supply power to the vehicle's steering system due to failure or power loss, how to ensure that the vehicle's steering system can still work with power so that the vehicle maintains steering stability until it stops becomes a technical problem that needs to be solved urgently. Utility Model Content

[0004] One object of the present application is to provide a new technical solution for power supply.

[0005] According to a first aspect of the present application, an electrical system is provided, which is applied to a vehicle and includes: an energy conversion circuit, an energy storage circuit and a switch circuit, wherein:

[0006] Energy conversion circuit;

[0007] An energy storage circuit, wherein an input end of the energy storage circuit is connected to an output end of the energy conversion circuit;

[0008] A switch circuit connected between an output terminal of the energy storage circuit and a power input terminal of an electric system of the vehicle;

[0009] Among them, the energy conversion circuit is used to convert the received mechanical force into electrical energy, and input the electrical energy into the energy storage circuit, and the energy storage circuit stores the electrical energy. When the switch circuit connects the energy storage circuit with the power system, the energy storage circuit provides power to the power system.

[0010] Optionally, the energy conversion circuit is at least one of a steering motor, a door and window motor, and a wiper motor.

[0011] Optionally, the power supply system further includes:

[0012] A power detection circuit, wherein the input end of the power detection circuit is connected to the power input end of the power system, and the output end of the power detection circuit is connected to the control end of the switch circuit, and is used to detect whether the power system is powered and obtain a power supply detection result;

[0013] The switch circuit is used to connect the energy storage circuit with the power system when the power supply detection result indicates that the power system is not powered.

[0014] Optionally, the switch circuit includes:

[0015] a first switch subcircuit, the first switch subcircuit being connected between an output terminal of the energy storage circuit and a power input terminal of the power system;

[0016] A control subcircuit, wherein the first output end of the control subcircuit is connected to the control end of the first switch subcircuit, and the input end of the control subcircuit is connected to the output end of the power detection circuit, and is used to control the first switch subcircuit to be turned on when the power supply detection result indicates that the power system is not powered.

[0017] Optionally, the switch circuit further includes:

[0018] a second switch subcircuit, wherein the second switch subcircuit is connected between an input terminal of the power detection circuit and a power input terminal of the power consumption system, and a control terminal of the second switch subcircuit is connected to a second output terminal of the control subcircuit;

[0019] The control subcircuit is further configured to control the second switch subcircuit to be disconnected when the power supply detection result indicates that the power consumption system is not powered.

[0020] Optionally, the energy storage circuit includes:

[0021] A rectifier circuit, wherein an input end of the rectifier circuit is connected to an output end of the energy conversion circuit;

[0022] a voltage conversion subcircuit, wherein an input end of the voltage conversion subcircuit is connected to an output end of the rectifier subcircuit;

[0023] An energy storage subcircuit, wherein the input end of the energy storage subcircuit is connected to the output end of the voltage conversion subcircuit, and the output end of the energy storage subcircuit is connected to the switch circuit.

[0024] Optionally, the rectifier circuit is a single-phase bridge rectifier circuit.

[0025] Optionally, the voltage conversion subcircuit is a boost conversion subcircuit, and the voltage conversion subcircuit includes: an inductor, a switch and a diode, wherein:

[0026] The inductor is connected between the output end of the rectifier circuit and the anode of the diode, the switch is connected between the anode of the diode and the ground terminal, and the cathode of the diode is connected to the input end of the energy storage subcircuit.

[0027] Optionally, the energy storage subcircuit includes:

[0028] At least one capacitor, the capacitor is connected in parallel between the output terminal of the voltage conversion subcircuit and the ground terminal, the first end of the capacitor is connected to the switch circuit, and the first end of the capacitor is one end of the capacitor that is not connected to the ground terminal.

[0029] Optionally, the power supply system further includes:

[0030] A mechanical force input structure is mechanically connected to the energy conversion circuit.

[0031] According to a second aspect of the present application, a steering system is provided for use in a vehicle, wherein the steering system comprises a power supply system and a power consumption system as described in any one of the first aspect, wherein a switch circuit in the power supply system is connected to the power consumption system, and the power consumption system is a steering assembly.

[0032] According to a third aspect of the present application, a vehicle is provided, the vehicle comprising the steering system as described in the second aspect, or the power supply system as described in any one of the first aspect.

[0033] The present application provides a power supply system, which is applied to vehicles, and includes: an energy conversion circuit, an energy storage circuit and a switch circuit, wherein: an energy conversion circuit; an energy storage circuit, the input end of the energy storage circuit is connected to the output end of the energy conversion circuit; a switch circuit, the switch circuit is connected between the output end of the energy storage circuit and the power input end of the vehicle's power system; wherein the energy conversion circuit is used to convert the received mechanical force into electrical energy, and input the electrical energy into the energy storage circuit, the energy storage circuit stores the electrical energy, and when the switch circuit connects the energy storage circuit with the power system, the energy storage circuit provides power to the power system. Based on the power supply system provided by the present application, when the power system is a steering assembly, and the vehicle's power battery and storage battery are unable to supply power to the vehicle's steering assembly, it can be ensured that the vehicle's steering assembly can still work with power, so that the vehicle maintains stable steering until it stops.

[0034] Other features and advantages of the present application will become apparent from the following detailed description of exemplary embodiments of the present application with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the application and, together with the description, serve to explain the principles of the application.

[0036] Figure 1 This is a schematic diagram of a power supply system provided in this application. Figure 1 ;

[0037] Figure 2 This is a schematic diagram of a power supply system provided in this application. Figure 2 ;

[0038] Figure 3 This is a schematic diagram of a power supply system provided in this application. Figure 3 ;

[0039] Figure 4 This is a schematic diagram of a power supply system provided in this application. Figure 4 . DETAILED DESCRIPTION

[0040] Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangement of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present application.

[0041] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present application, its application, or uses.

[0042] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered as part of the specification.

[0043] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0044] It should be noted that like reference numerals and letters refer to similar items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0045] The present application provides a power supply system, which is applied to a vehicle. When the power battery and storage battery of the vehicle are unable to provide power to the vehicle's power system, the power supply system provided by the present application can continue to provide power to the vehicle's power system. That is, the power supply system provided by the present application realizes emergency power supply to the vehicle's power system.

[0046] The power system may specifically be power devices that affect vehicle driving, such as a steering assembly, a braking system, and a drive system. Taking the steering assembly as an example, when the power battery and the storage battery of the vehicle are unable to provide power to the steering assembly of the vehicle, the power supply system provided by the present application continues to provide power to the steering assembly of the vehicle, so that the steering assembly of the vehicle can still work with power, thereby keeping the steering of the vehicle stable until it stops.

[0047] like Figure 1 As shown, the power supply system 10 provided in the present application includes: an energy conversion circuit 101, an energy storage circuit 102 and a switch circuit 103. Among them:

[0048] Energy conversion circuit 101;

[0049] An energy storage circuit 102, wherein an input end of the energy storage circuit 102 is connected to an output end of the energy conversion circuit 101;

[0050] A switch circuit 103, the switch circuit 103 is connected between the output end of the energy storage circuit 102 and the power input end of the vehicle's power system 20;

[0051] Among them, the energy conversion circuit 101 is used to convert the received mechanical force into electrical energy, and input the electrical energy into the energy storage circuit 102, which stores the electrical energy. When the switch circuit 103 connects the energy storage circuit 102 and the power system 20, the energy storage circuit 102 provides power to the power system 20.

[0052] In this embodiment, the driver applies mechanical force to the energy conversion circuit 101. On this basis, the energy conversion circuit 101 receives the mechanical force, converts the mechanical force into electrical energy, and inputs it into the energy storage circuit 102. The energy storage circuit 102 stores the electrical energy input by the energy conversion circuit 101. When the power battery 30 and the storage battery 40 of the vehicle are unable to provide power to the power system 20 of the vehicle, the switch circuit 103 connects the energy storage circuit 102 with the power system 20. At this time, the energy storage circuit 102 provides power to the power system 20. In this way, when the power battery 30 and the storage battery 40 of the vehicle are unable to provide power to the power system 20 of the vehicle, it can be ensured that the vehicle power system 20 can still work with power. For example, it is ensured that the vehicle steering system can still work with power so that the vehicle can maintain steering stability until it stops.

[0053] In one embodiment of the present application, the switch circuit 103 may be a manually controlled switch circuit.

[0054] In one embodiment of the present application, Figure 2 As shown, the power supply system provided by the present application also includes:

[0055] The mechanical force input structure 104 is mechanically connected to the energy conversion circuit 101 .

[0056] In this embodiment, the driver is facilitated to input mechanical force through the mechanical force input structure 104. In one embodiment of the present application, the mechanical force input structure 104 can be specifically a mechanical transmission structure composed of a vehicle steering wheel, a steering shaft connected to the steering wheel, a steering universal joint and a steering gear.

[0057] The present application provides a power supply system, which is applied to vehicles, and includes: an energy conversion circuit, an energy storage circuit and a switch circuit, wherein: an energy conversion circuit; an energy storage circuit, the input end of the energy storage circuit is connected to the output end of the energy conversion circuit; a switch circuit, the switch circuit is connected between the output end of the energy storage circuit and the power input end of the vehicle's power system; wherein the energy conversion circuit is used to convert the received mechanical force into electrical energy, and input the electrical energy into the energy storage circuit, the energy storage circuit stores the electrical energy, and when the switch circuit connects the energy storage circuit with the power system, the energy storage circuit provides power to the power system. Based on the power supply system provided by the present application, when the power system is a steering assembly, and the vehicle's power battery and storage battery are unable to supply power to the vehicle's steering assembly, it can be ensured that the vehicle's steering assembly can still work with power, so that the vehicle maintains stable steering until it stops.

[0058] In one embodiment of the present application, the energy conversion circuit 101 is at least one of a steering motor, a door and window motor, and a windshield wiper motor. Figure 4 As shown, the energy conversion circuit 101 is specifically a steering motor 1011 .

[0059] Since the steering motor, the door and window motor, and the wiper motor are all motors already in the vehicle, in this embodiment, when the energy conversion circuit 101 is at least one of the steering motor, the door and window motor, and the wiper motor, it is possible to reuse the motor already in the vehicle to serve as the energy conversion circuit in this embodiment. In this way, the hardware cost of the power supply system 10 provided in this application can be reduced.

[0060] In one embodiment of the present application, Figure 2 As shown, the power supply system 10 provided in the present application also includes:

[0061] A power detection circuit 105, wherein the input end of the power detection circuit 105 is connected to the power input end of the power consumption system 20, and the output end of the power detection circuit 105 is connected to the control end of the switch circuit, and is used to detect whether the power consumption system 20 is powered and obtain a power supply detection result;

[0062] The switch circuit 103 is used to connect the energy storage circuit 102 and the power system 20 when the power supply detection result indicates that the power system 20 is not powered.

[0063] In one embodiment of the present application, the power detection circuit 105 may be specifically a power detection circuit or a voltage detection circuit. Figure 4 As shown, in the case where the power detection circuit 105 is a current detection circuit, the power detection circuit 105 can be specifically implemented by a current Hall sensor 1051 .

[0064] In this embodiment, the power detection circuit 105 detects the current at the input end of the power consumption system 20 to obtain a power supply detection result, and sends the power supply detection result to the switch circuit 103 .

[0065] The switch circuit 103 determines whether the power battery 30 and the storage battery 40 supply power to the power system 20 according to the power supply detection result. When it is determined that the power battery 30 and the storage battery 40 do not supply power to the power system 20, the energy storage circuit 102 is connected to the power system 20. At this time, the energy storage circuit 102 supplies power to the power system 20.

[0066] In this embodiment, a power detection circuit 105 is provided in the power supply system 10 so that the switch circuit 103 can determine whether to connect the energy storage circuit 102 and the power consumption system 20. In this way, the problem of manually controlling the switch circuit 103 can be avoided, which improves the intelligence of the power supply system 10 provided by the present application.

[0067] In one embodiment of the present application, the switch circuit 103 can also be specifically used to: obtain the vehicle speed, and determine the minimum power required for the vehicle to maintain steering stability until it stops based on the vehicle speed; when it is determined based on the power supply detection result that the power battery 30 and the storage battery 40 are unable to provide the aforementioned minimum power to the power system 20, the switch circuit 103 connects the energy storage circuit 102 with the power system 20.

[0068] In one embodiment of the present application, Figure 2 Based on the power supply system 10 shown, as Figure 3 As shown, the switch circuit 103 includes:

[0069] A first switch subcircuit 1031, the first switch subcircuit 1031 is connected between the output end of the energy storage circuit 102 and the power input end of the power system 20;

[0070] The control subcircuit 1032 has a first output terminal connected to the control terminal of the first switch subcircuit 1031, and an input terminal of the control subcircuit 1032 is connected to the output terminal of the power detection circuit 105, and is used to control the first switch subcircuit 1031 to be turned on when the power supply detection result indicates that the power system 20 is not powered.

[0071] In this embodiment, if Figure 4 As shown, the control subcircuit 1032 can be implemented by an MCU 10321. The first switch subcircuit 1031 can be implemented by a transistor 10311. Of course, the first switch subcircuit 1031 can also be implemented by a contactor, a MOS tube, etc., which is not limited in the present application.

[0072] This embodiment provides a specific structure of a switch circuit 103, which is simple and easy to implement.

[0073] In another embodiment of the present application, Figure 3 As shown, the switch circuit 103 further includes:

[0074] A second switch subcircuit 1033, the second switch subcircuit 1033 is connected between one end of the first switch subcircuit 1031 connected to the power system 20 and the power input end of the power system 20, and the control end of the second switch subcircuit 1033 is connected to the second output end of the control subcircuit 1032;

[0075] The control subcircuit 1032 is further configured to control the second switch subcircuit 1033 to be disconnected when the power supply detection result indicates that the power consumption system 20 is not powered.

[0076] It should be noted that the second switch sub-circuit can be implemented by a MOS tube, a contactor, a triode, etc. Of course, the second switch sub-circuit 1033 can also be implemented by a contactor, which is not limited in the present application.

[0077] In conventional technology, the power input end of the power system 20 is usually connected to the output end of the DCDC circuit 50 connected to the power battery 30 and the output end of the storage battery 40. On this basis, by setting the second switch subcircuit 1033, when the power supply detection result indicates that the power system 20 is not powered, the connection between the output end of the storage battery 40, the output end of the DCDC circuit 50 connected to the power battery 30 and the power system 20 can be disconnected. In this way, it is possible to avoid charging the storage battery 40 by the energy storage circuit 102, thereby reducing the occurrence of power supply problems input to the power system 20. In addition, it is also possible to achieve that the energy storage circuit 102 continuously supplies power to the power system 20.

[0078] In one embodiment of the present application, Figure 3 As shown, the energy storage circuit 102 includes:

[0079] A rectifier circuit 1021, wherein an input end of the rectifier circuit 1021 is connected to an output end of the energy conversion circuit 101;

[0080] A voltage conversion sub-circuit 1023, wherein an input end of the voltage conversion sub-circuit 1023 is connected to an output end of the rectifier sub-circuit 1021;

[0081] The energy storage sub-circuit 1022 has an input end connected to the output end of the voltage conversion sub-circuit 1023 , and an output end of the energy storage sub-circuit 1022 is connected to the switch circuit 103 .

[0082] In this embodiment, the rectifier circuit 1021 is used to rectify the power output by the energy conversion circuit 101 so that the energy conversion circuit 101 outputs a stable DC power signal of, for example, 5V, and inputs it into the voltage conversion subcircuit 1023 .

[0083] In one embodiment of the present application, Figure 4 As shown, the rectifier circuit 1021 is a single-phase bridge rectifier circuit 10211.

[0084] The voltage conversion sub-circuit 1023 is used to convert the voltage of the power supply output by the rectifier sub-circuit 1021 into the voltage of the power supply required by the power consumption system 20 , and input the voltage into the energy storage sub-circuit 1022 .

[0085] It should be noted that the voltage of the power supply required by the power system 20 is usually 12V. Based on this, the voltage conversion subcircuit 1023 is usually a boost conversion subcircuit 10231. In one embodiment, the boost conversion subcircuit 10231 is as follows: Figure 4 shown.

[0086] The energy storage subcircuit 1022 stores the power output by the voltage conversion subcircuit 1023. The energy storage subcircuit 1022 specifically stores a large amount of charge and provides a large amount of current in a short time.

[0087] It should be noted that when the vehicle includes any one of the rectifier sub-circuit 1021, the voltage conversion sub-circuit 1023 and the energy storage sub-circuit 1022, the relevant circuits in the reused vehicle can be used to implement the power supply system provided in this application to reduce the hardware cost of the power supply system provided in this application.

[0088] The present application provides a schematic diagram of the structure of a tank circuit 102. The structure of the tank circuit 102 is easy to implement.

[0089] In one embodiment of the present application, Figure 4 As shown, the voltage conversion subcircuit 1023 is a boost conversion subcircuit 10231, and the voltage conversion subcircuit 1023 includes: an inductor, a switch and a diode, wherein:

[0090] The inductor is connected between the output end of the rectifier circuit 1021 and the anode of the diode, the switch is connected between the anode of the diode and the ground terminal, and the cathode of the diode is connected to the input end of the energy storage subcircuit.

[0091] In this embodiment, the control terminal of the switch is used to input a PWM signal, and the duty cycle of the PWM signal is used to determine the voltage conversion gain of the voltage conversion sub-circuit 1023 .

[0092] This embodiment provides a specific implementation of the voltage conversion sub-circuit 1023 , and the structure of the voltage conversion sub-circuit is simple and easy to implement.

[0093] In another embodiment of the present application, the input and output ends of the voltage conversion subcircuit 1023 provided in the present application are usually provided with, for example, chip capacitors, which form a filter network to filter out ripple voltage and improve the power supply quality of the power supply system provided in the present application. It should be noted that, Figure 4 In the figure, it is taken as an example that the output end of the voltage conversion sub-circuit 1023 is usually provided with a capacitor.

[0094] In one embodiment of the present application, Figure 4 As shown, the energy storage subcircuit 1022 includes:

[0095] At least one capacitor is connected in parallel between the output terminal of the voltage conversion sub-circuit 1023 and the ground terminal, a first end of the capacitor is connected to the switch circuit 103, and the first end of the capacitor is an end of the capacitor not connected to the ground terminal.

[0096] It should be noted that Figure 4 In the figure, an energy storage subcircuit including three capacitors is taken as an example.

[0097] The present application also provides a steering system, which is applied to a vehicle and includes a power supply system and a power consumption system provided in any of the above embodiments, wherein a switch circuit in the power supply system is connected to the power consumption system, and the power consumption system is a steering assembly.

[0098] The present application also provides a vehicle, which includes the steering system provided by the above embodiment, or includes the power supply system provided by any of the above embodiments.

[0099] The embodiments of the present application have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or technical improvements to the technology in the market, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein. The scope of the present application is defined by the appended claims.

Claims

1. A power supply system (10), characterized in that: Applied to a vehicle, comprising: an energy conversion circuit (101), an energy storage circuit (102) and a switch circuit (103), wherein: Energy conversion circuit (101); An energy storage circuit (102), wherein an input end of the energy storage circuit (102) is connected to an output end of the energy conversion circuit (101); A switch circuit (103), the switch circuit (103) being connected between an output end of the energy storage circuit (102) and a power input end of an electric power system (20) of the vehicle; The energy conversion circuit (101) is used to convert the received mechanical force into electrical energy, and input the electrical energy into the energy storage circuit (102), and the energy storage circuit (102) stores the electrical energy. When the switch circuit (103) connects the energy storage circuit with the power consumption system (20), the energy storage circuit (102) provides power to the power consumption system (20).

2. The power supply system according to claim 1, characterized in that: The energy conversion circuit (101) is at least one of a steering motor (1011), a door and window motor, and a wiper motor.

3. The power supply system according to claim 1, characterized in that: The power supply system further comprises: A power detection circuit (105), wherein an input end of the power detection circuit (105) is connected to a power input end of the power consumption system (20), and an output end of the power detection circuit (105) is connected to a control end of the switch circuit (103), and is used to detect whether the power consumption system (20) is powered and obtain a power supply detection result; The switch circuit (103) is used to connect the energy storage circuit (102) and the power system (20) when the power supply detection result indicates that the power system (20) is not powered.

4. The power supply system according to claim 3, characterized in that: The switch circuit (103) comprises: A first switch subcircuit (1031), the first switch subcircuit (1031) being connected between an output end of the energy storage circuit (102) and a power input end of the power consumption system (20); A control subcircuit (1032), wherein a first output end of the control subcircuit (1032) is connected to a control end of the first switch subcircuit (1031), and an input end of the control subcircuit (1032) is connected to an output end of the power detection circuit (105), and is used to control the first switch subcircuit (1031) to be turned on when the power supply detection result indicates that the power consumption system (20) is not powered.

5. The power supply system according to claim 4, characterized in that: The switch circuit (103) further includes: a second switch subcircuit (1033), the second switch subcircuit (1033) being connected between one end of the first switch subcircuit (1031) connected to the power system (20) and a power input end of the power system (20), and a control end of the second switch subcircuit (1033) being connected to a second output end of the control subcircuit (1032); The control subcircuit (1032) is further configured to control the second switch subcircuit (1033) to be disconnected when the power supply detection result indicates that the power consumption system (20) is not powered.

6. The power supply system according to claim 1, characterized in that: The energy storage circuit (102) comprises: A rectifier circuit (1021), wherein an input end of the rectifier circuit (1021) is connected to an output end of the energy conversion circuit (101); A voltage conversion subcircuit (1023), wherein an input end of the voltage conversion subcircuit (1023) is connected to an output end of the rectifier subcircuit (1021); An energy storage subcircuit (1022), wherein the input end of the energy storage subcircuit (1022) is connected to the output end of the voltage conversion subcircuit (1023), and the output end of the energy storage subcircuit (1022) is connected to the switch circuit (103).

7. The power supply system according to claim 6, characterized in that: The rectifier circuit (1021) is a single-phase bridge rectifier circuit (10211).

8. The power supply system according to claim 6, characterized in that: The voltage conversion subcircuit (1023) is a boost conversion subcircuit (10231), and the boost conversion subcircuit (10231) comprises: an inductor, a switch and a diode, wherein: The inductor is connected between the output end of the rectifier circuit (1021) and the anode of the diode, the switch is connected between the anode of the diode and the ground terminal, and the cathode of the diode is connected to the input end of the energy storage subcircuit (1022).

9. The power supply system according to claim 6, characterized in that: The energy storage subcircuit (1022) comprises: At least one capacitor is connected in parallel between the output end of the voltage conversion subcircuit and the ground end, a first end of the capacitor is connected to the switch circuit (103), and the first end of the capacitor is one end of the capacitor that is not connected to the ground end.

10. The power supply system according to any one of claims 1 to 9, characterized in that: The power supply system further comprises: A mechanical force input structure (104), wherein the mechanical force input structure (104) is mechanically connected to the energy conversion circuit (101).

11. A steering system, characterized in that: Applied to a vehicle, the steering system comprises a power supply system and a power consumption system as described in any one of claims 1 to 10, a switch circuit in the power supply system is connected to the power consumption system, and the power consumption system is a steering assembly.

12. A vehicle, characterized in that: The vehicle comprises the steering system according to claim 11, or the power supply system according to any one of claims 1-9.

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