Drive-by-wire chassis power supply module

Abstract

The utility model discloses a drive-by-wire chassis power supply module, which comprises a first drive-by-wire chassis module, a second drive-by-wire chassis module and a power supply module, the power supply module comprises a first power supply and a second power supply, the first end of the first power supply is electrically connected with the first drive-by-wire chassis module, the first end of the first power supply is electrically connected with the second power supply, and the first power supply is configured to supply power to at least one of the first drive-by-wire chassis module and the second power supply; the first end of the second power supply is electrically connected with the first end of the first drive-by-wire chassis module, and the second end of the second power supply is electrically connected with the second drive-by-wire chassis module; the second power supply is configured to supply power to the first drive-by-wire chassis module or the second drive-by-wire chassis module when the first power supply cannot supply power to the first drive-by-wire chassis module; the second power supply comprises a main storage battery and a redundant storage battery, and the main storage battery and the redundant storage battery are both electrically connected with the first power supply and are both configured to store electric energy provided by the first power supply and supply power to the outside.

Description

Technical Field

[0001] This utility model relates to the field of wire-controlled chassis technology, and in particular to a power supply module for a wire-controlled chassis. Background Technology

[0002] Drive-by-wire chassis technology uses electronic signals to control vehicles instead of traditional mechanical or hydraulic connections, reducing mechanical parts and saving interior space. Drive-by-wire chassis technology includes brake-by-wire, steering-by-wire, suspension-by-wire, and gear shifting-by-wire. These functions are directly related to user safety and require extremely high reliability to prevent steering and braking malfunctions that could cause injury. Currently, the common approach is to use two completely independent drive-by-wire chassis systems, so that the other can continue to function normally even if one fails. This also requires an independent external power supply. Typically, each system has its own independent power supply, but the reliability of such systems is still relatively poor. Therefore, there is an urgent need for a drive-by-wire chassis power supply module that can solve the above problems. Utility Model Content

[0003] In view of this, this utility model proposes a power supply module for a drive-by-wire chassis, which significantly improves the reliability of the power supply module to ensure the safe operation of critical vehicle functions (such as steering and braking). The technical solution of this utility model is as follows:

[0004] This utility model proposes a power supply module for a drive-by-wire chassis, including a first drive-by-wire chassis module, a second drive-by-wire chassis module, and a power supply module. The power supply module includes a first power source and a second power source. A first terminal of the first power source is electrically connected to the first drive-by-wire chassis module, and a first terminal of the first power source is electrically connected to the second power source. The first power source is configured to supply power to at least one of the first drive-by-wire chassis module and the second power source. A first terminal of the second power source is electrically connected to a first terminal of the first drive-by-wire chassis module, and a second terminal of the second power source is electrically connected to the second drive-by-wire chassis module. The second power source is configured to supply power to either the first drive-by-wire chassis module or the second drive-by-wire chassis module when the first power source cannot supply power to the first drive-by-wire chassis module. The second power source includes a main battery and a redundant battery. Both the main battery and the redundant battery are electrically connected to the first power source and are configured to store the electrical energy provided by the first power source and supply power externally.

[0005] Specifically, the power supply module further includes a first disconnect switch, a first end of which is electrically connected to the first power supply, and a second end of which is electrically connected to both the first wire-controlled chassis module and the second power supply; the first power supply is communicatively connected to the first disconnect switch; the first power supply is configured to send a first control signal to the first disconnect switch during normal operation; the first disconnect switch is configured to close upon receiving the first control signal; the second power supply is communicatively connected to the first disconnect switch, and the first power supply is communicatively connected to the second power supply; the second power supply is configured to send a second control signal to the first disconnect switch and supply power to the first wire-controlled chassis module upon detecting a fault in the first power supply; the first disconnect switch is configured to open upon receiving the second control signal.

[0006] Specifically, the second power supply includes a main switch circuit and a redundant switch circuit. The first end of the main switch circuit is connected to the main battery, and the second end of the main switch circuit is connected to the second end of the first disconnect switch and the first wire-controlled chassis module. The main switch circuit is configured to conduct the electrical connection between the main battery and the first disconnect switch and the first wire-controlled chassis module. The first end of the redundant switch circuit is connected to the redundant battery, and the second end of the redundant switch circuit is connected to the second wire-controlled chassis module. The redundant switch circuit is configured to conduct the electrical connection between the redundant battery and the second wire-controlled chassis module.

[0007] Specifically, the second power supply further includes an MCU, a first driver, and a second driver. The MCU is communicatively connected to the first power supply, the first disconnect switch, the first driver, and the second driver. The MCU is configured to, upon detecting a fault in the first power supply, send a second control signal to the first disconnect switch and send a switch signal to at least one of the first driver and the second driver. The first driver, communicatively connected to the main switch circuit, is configured to send a closing signal to the main switch circuit after receiving a switch signal. The second driver, communicatively connected to the redundant switch circuit, is configured to send a closing signal to the redundant switch circuit after receiving a switch signal.

[0008] Specifically, the main switch circuit includes several first switch branches, with a first end of each first switch branch connected to the main battery and a second end connected to a first disconnecting switch and a first wire-controlled chassis module. Each first switch branch is equipped with a first switch assembly, which is communicatively connected to the first drive and configured to conduct the main switch branch upon receiving a closing signal. Specifically, the redundant switch circuit includes several second switch branches, with a first end of each second switch branch connected to the redundant battery and a second end connected to a second wire-controlled chassis module. Each second switch branch is equipped with a second switch assembly, which is communicatively connected to the second drive and configured to conduct the main switch branch upon receiving a closing signal. Specifically, the second power supply also includes a second disconnecting switch, with the positive terminal of the main battery electrically connected to the positive terminal of the redundant battery, the negative terminal of the main battery connected to the first end of the second disconnecting switch, and the second end of the second disconnecting switch connected to the negative terminal of the redundant battery.

[0009] Specifically, the MCU is communicatively connected to the second disconnect switch, and the MCU is configured to send a third control signal to the second disconnect switch to disconnect the second disconnect switch when a fault is detected in the main battery or the redundant battery; and / or the first wire-controlled chassis module is communicatively connected to the second disconnect switch, and the first wire-controlled chassis module is configured to send a third control signal to the second disconnect switch to disconnect the second disconnect switch when a fault is detected in the main battery or the redundant battery; and / or specifically, the second wire-controlled chassis module is communicatively connected to the second disconnect switch, and the second wire-controlled chassis module is configured to send a third control signal to the second disconnect switch to disconnect the second disconnect switch when a fault is detected in the main battery or the redundant battery.

[0010] Specifically, the first drive-by-wire chassis module is communicatively connected to the second drive-by-wire chassis module, and the second drive-by-wire chassis module is communicatively connected to the second disconnect switch. The second drive-by-wire chassis module is configured to send a fourth control signal to the second disconnect switch to disconnect the second disconnect switch when a fault is detected in the first drive-by-wire chassis module. Specifically, the MCU is communicatively connected to the first drive-by-wire chassis module. The MCU is configured to send a first control signal to the first disconnect switch and a third control signal to the second disconnect switch when a fault is detected in the first drive-by-wire chassis module, thereby opening both the first and second disconnect switches, and sending a switch signal to the second drive to establish the electrical connection between the second drive-by-wire chassis module and the redundant battery.

[0011] Specifically, the first wire-controlled chassis module is communicatively connected to the second disconnect switch. The first wire-controlled chassis module is configured to send the fifth control signal to the second disconnect switch to open the second disconnect switch after detecting a fault in the second wire-controlled chassis module.

[0012] Specifically, the first power source includes a CCU and a high-voltage power battery. The input terminal of the CCU is connected to the output terminal of the high-voltage power battery, and the output terminal of the CCU is connected to the first disconnecting switch. The CCU is configured to draw power from the high-voltage power battery, convert it, and output a low-voltage current.

[0013] This device has at least the following advantages: 1. By setting up a first power supply and a second power supply, the device can ensure that power can still be supplied to the first and / or second drive-by-wire chassis modules even if either power supply fails. The battery in the second power supply is also designed with redundancy, so that even if one battery fails, the other battery can still supply power normally, further improving the redundancy of the power supply module and driving safety.

[0014] 2. The first and second disconnect switches can prevent the failure of some components from affecting other circuits, thus helping to effectively improve the stability of the system.

[0015] 3. Both the main switch circuit and the redundant switch circuit adopt an array switch design with several MOSFETs. Even if individual MOSFETs fail, the electrical connection between the battery and the subsystem can still be maintained, thereby further improving the reliability of the power supply module and ensuring the system's ability to operate under extreme conditions.

[0016] 4. The MCU in the device communicates with the disconnect switch and drive module, enabling it to monitor the power supply status in real time and quickly issue control signals as needed. The MCU's intelligent control mechanism ensures efficient switching of the power supply module in different operating modes, improving operational efficiency.

[0017] 5. By closing the second isolating switch, the main battery and the redundant battery are connected in parallel, enabling simultaneous charging. This design not only improves the flexibility of power supply but also extends battery life and reduces maintenance costs. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only one embodiment of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Identical parts are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to directions in the accompanying drawings, while the terms "bottom surface," "top surface," "inner," and "outer" refer to directions toward or away from the geometric center of a specific part, respectively.

[0020] Figure 1 This is a schematic diagram of the low-voltage power supply system of this utility model; Figure 2 This is a schematic diagram of the main switch circuit of this utility model; Figure 3 This is a schematic diagram of the redundant switch circuit of this utility model.

[0021] In the above figures, the meanings of the reference numerals are as follows: 1. First wired chassis module; 2. Second wired chassis module; 3. First power supply; 4. Second power supply; 40. Main battery; 41. Redundant battery; 42. MCU; 43. First driver; 44. Second driver; 45. Second disconnect switch; 46. First MOSFET; 47. Second MOSFET; 48. Third MOSFET; 49. Fourth MOSFET; 5. First disconnect switch. Detailed Implementation

[0022] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments and accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0023] Unless otherwise defined, all technical and scientific terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the terminology used in the detailed description is for the purpose of describing particular embodiments only and is not intended to limit the invention; the terms “comprising” and “having” and any variations thereof in the specification, claims and foregoing description of the invention are intended to cover non-exclusive inclusion.

[0024] In the description of the specific embodiments of this utility model, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this utility model, "multiple" means two or more, unless otherwise explicitly defined.

[0025] In this invention, the reference to "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this invention. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described in this invention can be combined with other embodiments.

[0026] In the description of this utility model embodiment, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, in this utility model, the character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0027] Throughout this invention, numerical values ​​represent approximate measurements or limits of a range to cover minute deviations from a given value, as well as embodiments having approximately the mentioned value and embodiments having the exact mentioned value. Except for the working examples provided at the end of the detailed description, all numerical values ​​of parameters, quantities, or conditions in the appended claims should be understood to be modified in all cases by the term “about,” regardless of whether “about” actually appears before the numerical value. “About” indicates that the stated numerical value allows for some minute inaccuracy that is somewhat close to the exact value of the value; approximately or reasonably close to the value; almost. If the inaccuracy provided by “about” is not otherwise understood in this common sense in the art, then “about” as used in this invention at least indicates a variation that can be produced by common methods of measuring and using such parameters. For example, “about” may include a variation of less than or equal to 5%, optionally less than or equal to 4%, optionally less than or equal to 3%, optionally less than or equal to 2%, optionally less than or equal to 1%, optionally less than or equal to 0.5%, and in some respects, optionally less than or equal to 0.1%.

[0028] Additionally, the disclosure of the range includes the disclosure of all values ​​across the entire range and the disclosure of further subdivided ranges, including the endpoints and subranges given for these ranges.

[0029] The embodiments of the present invention will be described in more detail below through examples. It should be noted that the embodiments of the present invention are not limited to these examples.

[0030] Drive-by-wire chassis technology uses electronic signals to control vehicles instead of traditional mechanical or hydraulic connections, reducing mechanical parts and saving interior space. Drive-by-wire chassis technology includes brake-by-wire, steering-by-wire, suspension-by-wire, and gear shifting-by-wire. These functions are directly related to user safety and require extremely high reliability to prevent steering and braking malfunctions that could cause injury. Currently, the common approach is to use two completely independent drive-by-wire chassis systems, so that the other can continue to function normally even if one fails. This also requires an independent external power supply. Typically, each system has its own independent power supply, but the reliability of such systems is still relatively poor. Therefore, there is an urgent need for a drive-by-wire chassis power supply module that can solve the above problems.

[0031] In view of this, the present invention proposes a drive-by-wire chassis power supply module, which significantly improves the reliability of the drive-by-wire chassis power supply module to ensure the safe operation of key vehicle functions (such as steering and braking).

[0032] refer to Figures 1 to 3 In one specific embodiment, a drive-by-wire chassis power supply module includes a first drive-by-wire chassis module 1, a second drive-by-wire chassis module 2, and a power supply module. The power supply module includes a first power source 3 and a second power source 4. A first terminal of the first power source 3 is electrically connected to the first drive-by-wire chassis module 1, and a first terminal of the first power source 3 is electrically connected to the second power source 4. The first power source 3 is configured to supply power to at least one of the first drive-by-wire chassis module 1 and the second power source 4. A first terminal of the second power source 4 is electrically connected to the first terminal of the first drive-by-wire chassis module 1, and a second terminal of the second power source 4 is electrically connected to the second drive-by-wire chassis module 2. The second power source 4 is configured to supply power to either the first drive-by-wire chassis module 1 or the second drive-by-wire chassis module 2 when the first power source 3 cannot supply power to the first drive-by-wire chassis module 1. The second power source 4 includes a main battery 40 and a redundant battery 41. Both the main battery 40 and the redundant battery 41 are electrically connected to the first power source 3 and are both configured to store the electrical energy provided by the first power source 3 and supply power externally.

[0033] With the above configuration, the first drive-by-wire chassis module 1 and the second drive-by-wire chassis module 2 form two redundant systems for the drive-by-wire chassis system. The dual power supply ensures power supply to both the first drive-by-wire chassis module 1 and / or the second drive-by-wire chassis module 2, guaranteeing normal operation of the drive-by-wire chassis system even if a problem occurs at either power source. Furthermore, the battery 5 in the second power source 4 is also redundant; if one battery 5 fails, the other can still provide power, further enhancing the redundancy of the chassis power supply system and ensuring driving safety.

[0034] Specifically, the second power supply 4 provides 12V low-voltage power to the external power modules. The second power supply 4 can power the low-voltage power supply system within the battery system, supplying power not only to the first wire-controlled chassis module 1 and the second wire-controlled chassis module 2, but also to other modules in the system that require low-voltage current.

[0035] In some feasible implementations, the power supply module further includes a first disconnect switch 5, the first end of which is electrically connected to the first power supply 3, and the second end of which is electrically connected to both the first wire-controlled chassis module 1 and the second power supply 4; the first power supply 3 is communicatively connected to the first disconnect switch 5; the first power supply 3 is configured to send a first control signal to the first disconnect switch 5 during normal operation; the first disconnect switch 5 is configured to close upon receiving the first control signal; the second power supply 4 is communicatively connected to the first disconnect switch 5, and the first power supply 3 is communicatively connected to the second power supply 4; the second power supply 4 is configured to send a second control signal to the first disconnect switch 5 and supply power to the first wire-controlled chassis module 1 after detecting a fault in the first power supply 3; the first disconnect switch 5 is configured to open upon receiving the second control signal.

[0036] By setting the first isolation switch 5, when the first power supply 3 fails, the isolation switch is opened, so that the second power supply module, the first wire-controlled chassis module 1, and the second wire-controlled chassis module 2 are not affected by the first power supply 3.

[0037] In some feasible implementations, the second power supply 4 includes a main switch circuit and a redundant switch circuit. The first end of the main switch circuit is connected to the main battery 40, and the second end of the main switch circuit is connected to the second end of the first disconnecting switch 5 and the first wired chassis module 1. The main switch circuit is configured to conduct the electrical connection between the main battery 40 and the first disconnecting switch 5 and the first wired chassis module 1. The first end of the redundant switch circuit is connected to the redundant battery 41, and the second end of the redundant switch circuit is connected to the second wired chassis module 2. The redundant switch circuit is configured to conduct the electrical connection between the redundant battery 41 and the second wired chassis module 2.

[0038] In some feasible implementations, the second power supply 4 further includes an MCU 42, a first driver 43, and a second driver 44. The MCU 42 is communicatively connected to the first power supply 3, the first disconnect switch 5, the first driver 43, and the second driver 44. The MCU 42 is configured to, upon detecting a fault in the first power supply 3, send a second control signal to the first disconnect switch 5 and a switch signal to at least one of the first driver 43 and the second driver 44. The first driver 43, communicatively connected to the main switch circuit, is configured to, upon receiving a switch signal, send a closing signal to the main switch circuit to establish the electrical connection between the main battery 40 and the first disconnect switch 5 and the first wired chassis module 1. The second driver 44, communicatively connected to the redundant switch circuit, is configured to, upon receiving a switch signal, send a closing signal to the redundant switch circuit to establish the electrical connection between the redundant battery 41 and the second wired chassis module 2. With this configuration, the second power supply 4 can supply power to the wired chassis after detecting a fault in the first power supply 3, preventing the fault in the first power supply 3 from affecting other circuit components.

[0039] In some feasible implementations, the main switch circuit includes several first switch branches. The first end of each first switch branch is connected to the main battery 40, and the second end is connected to the first disconnecting switch 5 and the first wire-controlled chassis module 1. Each first switch branch is equipped with a first switch assembly, which is communicatively connected to the first drive 43 and configured to conduct the main switch branch upon receiving a closing signal. In some feasible implementations, the redundant switch circuit includes several second switch branches. The first end of each second switch branch is connected to the redundant battery 41, and the second end is connected to the second wire-controlled chassis module 2. Each second switch branch is equipped with a second switch assembly, which is communicatively connected to the second drive 44 and configured to conduct the main switch branch upon receiving a closing signal. The main switch circuit includes several first MOSFETs 46 and several second MOSFETs 47. The first terminal (source S) of each first MOSFET 46 is electrically connected to the main battery 40. The second terminal (drain D) of each first MOSFET 46 is connected to and connected to the first terminal (drain D) of each second MOSFET 47. The second terminal (source S) of each second MOSFET 47 is connected to the second terminal of the first disconnect switch 5. The first drive 43 is communicatively connected to the third terminal (gate G) of each first MOSFET 46. The first drive 43 sends a first drive 43 command to the first MOSFET 46. The first drive 43 is communicatively connected to the third terminal of each second MOSFET 47. The first drive 43 sends a second drive 44 command to the third MOSFET 48.

[0040] The redundant switching circuit includes several third MOSFETs 48 and several fourth MOSFETs 49. The first terminal (source S) of each third MOSFET 48 is electrically connected to the backup battery 5. The second terminal (drain D) of each third MOSFET 48 is connected to and connected to the first terminal (drain D) of each fourth MOSFET 49. The second terminal (source S) of each fourth MOSFET 49 is connected to the second wire-controlled chassis module 2. The second drive 44 is communicatively connected to the third terminal (gate G) of each third MOSFET 48. The second drive 44 sends a third drive command to the third MOSFET 48. The second drive 44 is also communicatively connected to the third terminal (gate G) of each fourth MOSFET 49. The second drive 44 sends a fourth drive command to the fourth MOSFET 49.

[0041] With the above configuration, a plurality of first MOSFETs 46 and second MOSFETs 47 form an array switch. When a MOSFET fails, the electrical connection between the main battery 40 and the isolating switch and / or the first drive-by-wire chassis module can still be maintained. A plurality of third MOSFETs 48 and fourth MOSFETs 49 form an array switch. When a MOSFET fails, the electrical connection between the redundant battery 41 and the second drive-by-wire chassis module can still be maintained. This can further improve the redundancy of the power supply system and ensure driving safety.

[0042] In some feasible implementations, the second power supply 4 further includes a second disconnecting switch 45, the positive terminal of the main battery 40 is electrically connected to the positive terminal of the redundant battery 41, the negative terminal of the main battery 40 is connected to the first terminal of the second disconnecting switch 45, and the second terminal of the second disconnecting switch 45 is connected to the negative terminal of the redundant battery 41.

[0043] With the above settings, when the second disconnect switch 45 is closed, the main battery 40 and the redundant battery 41 are connected in parallel, and the first power supply 3 can charge both the main battery 40 and the redundant battery 41.

[0044] In some feasible implementations, MCU42 is communicatively connected to the second disconnect switch 45, and MCU42 is configured to send a third control signal to the second disconnect switch 45 to disconnect the second disconnect switch 45 when a fault is detected in the main battery 40 or the redundant battery 41; and / or the first wire-controlled chassis module 1 is communicatively connected to the second disconnect switch 45, and the first wire-controlled chassis module 1 is configured to send a third control signal to the second disconnect switch 45 to disconnect the second disconnect switch 45 when a fault is detected in the main battery 40 or the redundant battery 41; and / or the second wire-controlled chassis module 2 is communicatively connected to the second disconnect switch 45, and the second wire-controlled chassis module 2 is configured to send a third control signal to the second disconnect switch 45 to disconnect the second disconnect switch 45 when a fault is detected in the main battery 40 or the redundant battery 41.

[0045] In some feasible implementations, the first wire-controlled chassis module 1 is communicatively connected to the second wire-controlled chassis module 2, and the second wire-controlled chassis module 2 is communicatively connected to the second disconnect switch 45. The second wire-controlled chassis module 2 is configured to send a fourth control signal to the second disconnect switch 45 to disconnect the second disconnect switch 45 when a fault is detected in the first wire-controlled chassis module 1. In some feasible implementations, the MCU 42 is communicatively connected to the first wire-controlled chassis module 1. The MCU 42 is configured to send a first control signal to the first disconnect switch 5 and a third control signal to the second disconnect switch 45 when a fault is detected in the first wire-controlled chassis module 1, thereby opening both the first disconnect switch 5 and the second disconnect switch 45, and sending a switch signal to the second drive module 44 to connect the second wire-controlled chassis module 2 to the redundant battery 41.

[0046] In addition, the failure of the first wire-controlled chassis module 1 may be due to a fault in the wire-controlled chassis system, or it may be due to a fault in any component in the power supply circuit formed by the first power supply 3 or the main battery 40 and the first wire-controlled chassis, which would cause the first wire-controlled chassis module 1 to fail.

[0047] In some feasible implementations, the first wire-controlled chassis module 1 is communicatively connected to the second disconnect switch 45. The first wire-controlled chassis module 1 is configured to send a fifth control signal to the second disconnect switch 45 to open the second disconnect switch 45 when a fault is detected in the second wire-controlled chassis module 2.

[0048] In some feasible implementations, the first power source 3 includes a CCU9 and a high-voltage power battery 5. The input terminal of the CCU9 is connected to the output terminal of the high-voltage power battery 5, and the output terminal of the CCU9 is connected to the first disconnecting switch 5. The CCU9 is configured to draw power from the high-voltage power battery 5, convert and output a low-voltage current.

[0049] It should be noted that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A power supply module for a wire-controlled chassis, characterized in that, Includes a first wire-controlled chassis module, a second wire-controlled chassis module, and a power supply module; The power supply module includes a first power supply and a second power supply. A first end of the first power supply is electrically connected to the first wire-controlled chassis module, and a first end of the first power supply is electrically connected to the second power supply. The first power supply is configured to supply power to at least one of the first wire-controlled chassis module and the second power supply. The first end of the second power supply is electrically connected to the first end of the first wire-controlled chassis module, and the second end of the second power supply is electrically connected to the second wire-controlled chassis module; the second power supply is configured to supply power to either the first wire-controlled chassis module or the second wire-controlled chassis module when the first power supply cannot supply power to the first wire-controlled chassis module. The second power source includes a main battery and a redundant battery. Both the main battery and the redundant battery are electrically connected to the first power source and are configured to store the electrical energy provided by the first power source and supply power to the outside.

2. The wire-controlled chassis power supply module according to claim 1, characterized in that, The power supply module also includes a first disconnecting switch, the first end of which is electrically connected to the first power supply, and the second end of which is electrically connected to both the first wired chassis module and the second power supply. The first power supply is communicatively connected to the first disconnecting switch; the first power supply is configured to send a first control signal to the first disconnecting switch during normal operation; the first disconnecting switch is configured to close upon receiving the first control signal. The second power supply is communicatively connected to the first disconnecting switch, and the first power supply is communicatively connected to the second power supply. The second power supply is configured to send a second control signal to the first disconnecting switch and supply power to the first wire-controlled chassis module after detecting a fault in the first power supply; the first disconnecting switch is configured to disconnect after receiving the second control signal.

3. The wire-controlled chassis power supply module according to claim 2, characterized in that, The second power supply includes a main switch circuit and a redundant switch circuit. The first end of the main switch circuit is connected to the main battery, and the second end of the main switch circuit is connected to the second end of the first disconnect switch and the first wire-controlled chassis module; the main switch circuit is configured to conduct the electrical connection between the main battery and the first disconnect switch and the first wire-controlled chassis module. The first end of the redundant switch circuit is connected to the redundant battery, and the second end of the redundant switch circuit is connected to the second wire-controlled chassis module. The redundant switch circuit is configured to conduct the electrical connection between the redundant battery and the second wire-controlled chassis module.

4. The wire-controlled chassis power supply module according to claim 3, characterized in that, The second power supply also includes an MCU, a first driver, and a second driver. The MCU is communicatively connected to the first power supply, the first disconnect switch, the first driver, and the second driver. The MCU is configured to send a second control signal to the first disconnect switch and a switch signal to at least one of the first driver and the second driver after detecting a fault in the first power supply. The first driver is communicatively connected to the main switch circuit and is configured to send a closing signal to the main switch circuit after receiving a switch signal; The second drive, which is communicatively connected to the redundant switch circuit, is configured to send a closing signal to the redundant switch circuit after receiving a switch signal.

5. A wire-controlled chassis power supply module according to claim 4, characterized in that, The main switch circuit includes several first switch branches. The first end of the first switch branch is connected to the main battery, and the second end of the first switch branch is connected to the first disconnect switch and the first wire-controlled chassis module. Each first switch branch is provided with a first switch assembly, which is communicatively connected to the first drive and configured to conduct the main switch branch after receiving a closing signal. The redundant switch circuit includes several second switch branches. The first end of the second switch branch is connected to the redundant battery, and the second end of the second switch branch is connected to the second wire-controlled chassis module. Each second switch branch is provided with a second switch assembly, which is communicatively connected to the second drive and configured to conduct the main switch branch after receiving a closing signal.

6. A wire-controlled chassis power supply module according to claim 4, characterized in that, The second power supply also includes a second disconnecting switch. The positive terminal of the main battery is electrically connected to the positive terminal of the redundant battery, the negative terminal of the main battery is connected to the first terminal of the second disconnecting switch, and the second terminal of the second disconnecting switch is connected to the negative terminal of the redundant battery.

7. A wire-controlled chassis power supply module according to claim 6, characterized in that, The MCU is communicatively connected to the second disconnect switch. The MCU is configured to send a third control signal to the second disconnect switch to disconnect the second disconnect switch when a fault is detected in the main battery or the redundant battery. and / or The first wire-controlled chassis module is communicatively connected to the second disconnect switch. The first wire-controlled chassis module is configured to send a third control signal to the second disconnect switch to disconnect the second disconnect switch when a fault is detected in the main battery or the redundant battery. and / or The second wire-controlled chassis module is communicatively connected to the second disconnect switch. The second wire-controlled chassis module is configured to send a third control signal to the second disconnect switch to disconnect the second disconnect switch when a fault is detected in the main battery or the redundant battery.

8. A wire-controlled chassis power supply module according to claim 7, characterized in that, The first wire-controlled chassis module is communicatively connected to the second wire-controlled chassis module, and the second wire-controlled chassis module is communicatively connected to the second disconnect switch. The second wire-controlled chassis module is configured to send a fourth control signal to the second disconnect switch to disconnect the second disconnect switch when a fault is detected in the first wire-controlled chassis module. The MCU is communicatively connected to the first drive-by-wire chassis module. The MCU is configured to send a first control signal to the first disconnect switch and a third control signal to the second disconnect switch when a fault is detected in the first drive-by-wire chassis module, thereby opening both the first and second disconnect switches and sending a switch signal to the second drive to establish the electrical connection between the second drive-by-wire chassis module and the redundant battery.

9. A wire-controlled chassis power supply module according to claim 8, characterized in that, The first wire-controlled chassis module is communicatively connected to the second disconnect switch. The first wire-controlled chassis module is configured to send a fifth control signal to the second disconnect switch to open the second disconnect switch when a fault is detected in the second wire-controlled chassis module.

10. A wire-controlled chassis power supply module according to claim 2, characterized in that, The first power source includes a CCU and a high-voltage power battery. The input terminal of the CCU is connected to the output terminal of the high-voltage power battery, and the output terminal of the CCU is connected to the first disconnecting switch. The CCU is configured to draw power from the high-voltage power battery, convert it, and output a low-voltage current.

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