Vehicle drive-by-wire backup system and implementation method thereof

Abstract

The invention provides a vehicle drive-by-wire backup system and an implementation method thereof, the vehicle drive-by-wire backup system is used for receiving a driving signal sent by an electronic pedal, the vehicle drive-by-wire backup system comprises a plurality of sub-driving modules and a main driving module, each sub-driving module comprises a sub-control unit, an actuating module, a sensing module and a sub-communication unit, the sub-driving modules are coupled through the sub-communication units so as to transmit signals, and the sub-driving modules are coupled with the electronic pedal through the sub-communication units; the main driving module comprises a main control unit and a main communication unit, the main control unit and the main driving module are coupled with the sub driving modules and the electronic pedal through the main communication unit, and the main driving module transmits signals to the sub driving modules through the main communication unit; and receiving the driving signal through the main communication unit.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle brake-by-wire, and in particular to a vehicle brake-by-wire backup system with a backup system mechanism and an implementation method thereof. Background Art

[0002] At present, the braking system of vehicles on the market is mainly composed of hydraulic types, with a long transmission path and the risk of oil leakage. Since the hydraulic brake system usually uses steel pipes (hard pipes) to transfer the brake fluid from the master brake cylinder to the calipers of each wheel for braking. Considering that the tires will jump up and down due to the ups and downs of the road surface, the end is often matched with a hose type. Since the hose has a certain degree of expansion coefficient, it will consume a certain amount of liquid, resulting in a delay in the increase of brake pressure and a longer braking distance. The traditional brake system must rely on the driver to step on the brake pedal to generate braking force. Therefore, it is difficult to cope with the active braking function of the advanced driving assistance system or the advanced driving system, and it is impossible to cooperate with regenerative braking to generate linear braking force.

[0003] As mentioned above, the general vehicle wire control backup system includes a central control module, which is used to receive the driving signal from the vehicle's electronic pedal and control the vehicle's brakes. Although this system effectively implements brake control, it has a key limitation, that is, when the central control module fails or fails, the entire wire control brake system will fail. Summary of the invention

[0004] The main purpose of the present invention is to provide a vehicle wire control backup system and its implementation method, which mainly provides a rescue mechanism when the main drive module fails to prevent the vehicle's overall braking system from being unable to function when the main drive module fails, thereby affecting driving safety.

[0005] In order to solve the above technical problems, the present invention provides a vehicle wire control backup system for braking the vehicle after receiving a driving signal sent by an electronic pedal of a vehicle, which comprises: a plurality of sub-driving modules, each of which comprises a sub-control unit, an actuation module, a sensing module and a sub-communication unit, wherein the sub-control unit is coupled to the actuation module, the sensing module and the sub-communication unit respectively, wherein each of the sub-driving modules is coupled to the electronic pedal through the sub-communication unit to transmit signals, and each of the sub-driving modules is coupled to the electronic pedal through the sub-communication unit; and a main driving module, comprising a main control unit and a main communication unit, wherein the main driving module is connected to each of the sub-driving modules through the main communication unit. The main driving module is coupled to the electronic pedal, the main driving module transmits a signal to each of the sub-driving modules through the main communication unit, and receives the driving signal through the main communication unit; wherein the main control unit of the main driving module receives the driving signal of the electronic pedal through the main communication unit, and then transmits the driving signal to the corresponding sub-driving module through the main communication unit to generate an action, when the operation of the main driving module is abnormal, one of the multiple sub-driving modules is designated by the system to replace the main driving module, and after the designated sub-driving module receives the driving signal through the sub-communication unit, it further transmits the driving signal to other corresponding sub-driving modules through the sub-communication unit to generate an action.

[0006] In one embodiment, the actuation module includes a motor and a reducer, and the sensing module is a wheel speed sensor.

[0007] In one embodiment, the main communication unit and the sub-communication unit may be one of CAN BUS, CAN FD, FlexRay, and Ethernet.

[0008] In one embodiment, the main driving module includes a main status monitoring unit, and the sub-driving module includes a sub-status monitoring unit. Under normal circumstances, the main status monitoring unit transmits a confirmation signal to the sub-status monitoring unit of each sub-driving module through the main communication unit. After the sub-driving module receives the confirmation signal, the sub-status monitoring unit transmits a relative confirmation signal to the main driving module through the sub-communication unit, so that the main driving module and the sub-driving module monitor each other to see if a status failure occurs.

[0009] In one embodiment, the main drive module includes a main encryption unit, and the sub-drive module includes a sub-encryption unit. The signal transmission between the main drive module and the sub-drive module is encrypted and decrypted by the main encryption unit and the sub-encryption unit respectively to improve the signal accuracy and achieve the purpose of not being easily interfered by external noise.

[0010] In one embodiment, each of the sub-driving modules is coupled to the main driving module via the sub-communication unit, so that the main driving module sends the driving signal to the sub-driving module simultaneously via the main communication unit and the sub-communication unit, so that each of the sub-driving modules confirms that the command is consistent to perform actuation, thereby enhancing the communication anti-interference capability.

[0011] In order to solve the above technical problems, the present invention also provides an implementation method of a vehicle wire control backup system, the steps of which are as follows: the main drive module receives a driving signal sent by an electronic pedal of the vehicle under normal circumstances; the main drive module and multiple sub-drive modules are used to determine whether the system fails through continuous signal transmission; the operating status of the main drive module is monitored, and when the main drive module is abnormal, one of the multiple sub-drive modules is selected and designated to replace the function of the main drive module; the driving signal transmitted by the electronic pedal of the vehicle is received by the selected sub-drive module; and the selected sub-drive module sends the received driving signal to other sub-drive modules to provide the vehicle with a stable braking function.

[0012] Compared with the prior art, the vehicle wire control backup system in the embodiment of the present invention has a rescue mechanism when the main drive module fails, so as to prevent the vehicle's overall braking system from being unable to function when the main drive module fails, thereby reducing the safety of the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the implementation methods of the present application or the technical solutions in the prior art, the drawings required for use in the implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0014] Figure 1 FIG. 1 is a schematic diagram of a vehicle control-by-wire backup system according to an embodiment of the present invention. FIG.

[0015] Figure 2 FIG. 2 is a schematic diagram of the vehicle wire control backup system of the present invention. FIG.

[0016] Figure 3 FIG. 1 is a schematic diagram of an implementation of a vehicle control-by-wire backup system according to the present invention. FIG.

[0017] Figure 4 FIG. 2 is a schematic diagram of an implementation of the vehicle control-by-wire backup system of the present invention. FIG.

[0018] Figure 5 FIG. 4 is a block diagram of a vehicle control-by-wire backup system according to another embodiment of the present invention.

[0019] Figure 6 FIG. 4 is a schematic diagram of a signal transmission time interval between a main driving module and each sub-driving module in an embodiment.

[0020] Figure 7 FIG. 4 is a block diagram of a vehicle control-by-wire backup system according to another embodiment of the present invention.

[0021] Figure 8 FIG. 4 is a block diagram of a vehicle control-by-wire backup system according to another embodiment of the present invention.

[0022] Fig. 9 FIG. 2 is a schematic diagram of the implementation steps of the vehicle control-by-wire backup system of the present invention. DETAILED DESCRIPTION

[0023] The following description contains specific information related to exemplary embodiments of the present invention. The drawings and the accompanying detailed descriptions of the present invention are exemplary embodiments only. However, the present invention is not limited to these exemplary embodiments. Other variations and embodiments of the present invention will occur to those skilled in the art. Unless otherwise indicated, the same or corresponding components in the drawings may be represented by the same or corresponding drawing component symbols. In addition, the drawings and illustrations in the present invention are generally not drawn to scale and are not intended to correspond to actual relative sizes.

[0024] For the purpose of consistency and ease of understanding, the same features are marked by reference numerals in the exemplary drawings (although not so marked in some examples). However, the features of different embodiments may be different in other aspects, so they should not be narrowly limited to the features shown in the drawings.

[0025] The phrases "at least one embodiment", "an embodiment", "multiple embodiments", "different embodiments", "some embodiments", "this embodiment", etc., may indicate that the embodiment of the present invention described in this manner may include specific features, structures or characteristics, but not every possible embodiment of the present invention must include the specific features, structures or characteristics. In addition, repeated use of the phrases "in one embodiment" and "in this embodiment" does not necessarily refer to the same embodiment, although they may be the same. In addition, phrases such as "embodiment" used in conjunction with "the present invention" do not mean that all embodiments of the present invention must include specific features, structures or characteristics, and it should be understood that "at least some embodiments of the present invention" include the described specific features, structures or characteristics. The term "coupled" is defined as connected, whether directly or indirectly through intermediate components, and is not necessarily limited to physical connections. When the term "including" is used, it means "including but not limited to", which clearly indicates the open inclusion or relationship of the described combinations, groups, series and equivalents.

[0026] In addition, for purposes of explanation and non-limiting, specific details such as functional entities, technologies, protocols, standards, etc. are set forth to provide an understanding of the described technology. In other instances, detailed descriptions of well-known methods, technologies, systems, architectures, etc. are omitted to avoid obscuring the description with unnecessary details.

[0027] The terms "first", "second" and "third" in the specification of the present invention and the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order. In addition, the term "including" and any variation thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or modules is not limited to the listed steps or modules, but optionally includes steps or modules that are not listed, or optionally includes other steps or modules that are inherent to these processes, methods, products or devices.

[0028] Those skilled in the art will immediately recognize that any computing function or algorithm described in the present invention can be implemented by hardware, software, or a combination of software and hardware. The modules corresponding to the described functions can be software, hardware, firmware, or any combination thereof. Software implementations can include computer executable instructions stored on a computer readable medium such as a memory or other type of memory.

[0029] The present invention is further described in detail below with reference to the accompanying drawings.

[0030] See also Figure 1 The present invention provides a vehicle line control backup system 10, the vehicle line control backup system 10 includes a main drive module 101 and a plurality of sub-drive modules (102, 103, 104, 105), and further Figure 1 As shown, a plurality of sub-driving modules (102, 103, 104, 105) are respectively disposed correspondingly to a left front wheel 112, a right front wheel 113, a left rear wheel 114, and a right rear wheel 115 of a vehicle 11.

[0031] See also Figure 2 The main driving module 101 includes a main control unit 1011 and a main communication unit 1012. The main driving module 101 is coupled to each of the sub-driving modules (102, 103, 104, 105) and the electronic pedal 111 through the main communication unit 1012. The main communication unit 1012 is composed of a circuit for receiving or sending signals. The main driving module 101 transmits signals to each of the sub-driving modules (102, 103, 104, 105) through the main communication unit 1012, and receives the driving signal M through the main communication unit 1012.

[0032] The main control unit 1011 of the main driving module 101 receives the driving signal M of the electronic pedal 111 through the main communication unit 1012, and then transmits the driving signal M to the corresponding sub-driving modules (102, 103, 104, 105) through the main communication unit 1012 to generate an action. When the operation of the main driving module 101 is abnormal, one of the multiple sub-driving modules (102, 103, 104, 105) will be designated by the system to replace the main driving module 101, and the designated sub-driving module (102, 103, 104, 105) will receive the driving signal M through the sub-communication unit (1024, 1034, 1044, 1054), and then further transmits the driving signal M to other corresponding sub-driving modules through the sub-communication unit (1024, 1034, 1044, 1054) to generate an action. In one embodiment, the main communication unit 1011 and the sub-communication units ( 1024 , 1034 , 1044 , 1054 ) may be one of CAN BUS (Controller Area Network), CAN FD (CAN with Flexible Data-Rate), FlexRay, and Ethernet, respectively.

[0033] See also Figure 2 , the sub-drive module 102 includes a sub-control unit 1021, an actuation module 1022, a sensing module 1023 and a sub-communication unit 1024, wherein the sub-control unit 1021 may be, for example, a microcontroller unit (MCU), and is coupled to the actuation module 1022, the sensing module 1023 and the sub-communication unit 1024 respectively to drive each module and unit to operate. The actuation module 1022 is used to control the braking system. The actuation module 1022 includes a motor (not shown) and a reducer (not shown). The combination of the motor and the reducer can achieve a greater torque output while reducing the motor rotation speed to ensure the stability and reliability of the braking system. The sensing module 1023 is used to detect the tire speed. In this embodiment, the sensing module 1023 may be, but is not limited to, a wheel speed sensor. The sub-communication unit 1024 is composed of a circuit for receiving or sending signals.

[0034] It can be understood that the other sub-driving modules (103, 104, 105) have the same structural components as the sub-driving module 102, so the structures of the other sub-driving modules (103, 104, 105) are not described in detail here.

[0035] Please see again Figure 1 and Figure 2The vehicle wire control backup system 10 of the present invention is mainly used to brake the vehicle 11 after receiving a driving signal M sent by an electronic pedal 111 of a vehicle 11. The vehicle wire control backup system 10 includes the main driving module 101 and a plurality of sub-driving modules (102, 103, 104, 105), wherein the sub-driving modules (102, 103, 104, 105) are coupled to each other through the sub-communication units (1024, 1034, 1044, 1054) to transmit signals, and each of the sub-driving modules (102, 103, 104, 105) is coupled to the electronic pedal 111 through the sub-communication units (1024, 1034, 1044, 1054).

[0036] The following is a detailed description of the signal transmission process between the main driving module 101 and the sub-driving modules ( 102 , 103 , 104 , 105 ).

[0037] See also Figure 3 , Figure 3 This is a schematic diagram of signal transmission between the main drive module and the sub-drive module of the present invention. Please refer to Figure 1 and Figure 2 ,like Figure 3 As shown, under normal conditions, the main driving module 101 is coupled to each of the sub-driving modules (102, 103, 104, 105) through the main communication unit 1012, and transmits signals to each of the sub-driving modules (102, 103, 104, 105) through the main communication unit 1012. Each of the sub-driving modules (102, 103, 104, 105) is coupled to each other in series through each of the sub-communication units (1024, 1034, 1044, 1054), so that each of the sub-driving modules (102, 103, 104, 105) can transmit signals to each other, and each of the sub-driving modules (102, 103, 104, 105) is further coupled to the electronic pedal 111 through each of the sub-communication units (1024, 1034, 1044, 1054). It can be understood that under normal circumstances, the main drive module 101 and each of the sub-drive modules (102, 103, 104, 105) of the present invention perform their respective functions and independently undertake different tasks. For example, the main drive module 101 is mainly responsible for receiving the signal of the electronic pedal 111 or other controllers and calculating and controlling the vehicle dynamics, and after receiving the relevant drive signal, issuing control sub-module commands, system diagnosis, external communication... and other tasks, while the sub-drive modules (102, 103, 104, 105) are responsible for receiving the wheel speed sensor, actuator sensor, drive actuator, actuator diagnosis and other related information.

[0038] As mentioned above, the main driving module 101 mainly receives the driving signal M from the electronic pedal 111, and transmits the driving signal M to each of the sub-driving modules (102, 103, 104, 105) through the main communication unit 1012 to generate an action. When the main driving module 101 generates an abnormality or failure, the system will default to designating one of the sub-driving modules (102, 103, 104, 105) as the module issuing commands, that is, the selected sub-driving module will replace the main driving module 101 to transmit signals to the other sub-driving modules.

[0039] See also Figure 4 , assuming that the sub-driving module 102 is selected, the electronic pedal 111 can transmit the driving signal M to the sub-driving module 102 through the sub-communication unit 1024, and after receiving the driving signal M, the sub-driving module 102 further transmits the driving signal M to other sub-driving modules (103, 104, 105) to generate an action. In this way, when an abnormality or failure occurs in the main driving module 101, the system can designate one of the sub-driving modules (102, 103, 104, 105) to replace the main driving module 101 to maintain the normal braking function of the vehicle and maintain driving safety.

[0040] See also Figure 5 and Figure 6 The following describes how the main driving module 101 and each of the sub-driving modules ( 102 , 103 , 104 , 105 ) monitor each other to see if their states are good.

[0041] As mentioned above, the main driving module 101 includes a main state monitoring unit 1013, and the sub-driving modules (102, 103, 104, 105) respectively include a sub-state monitoring unit (1025, 1035, 1045, 1055), as shown in FIG. Figure 5 and Figure 6As shown, under normal conditions, the main status monitoring unit 1013 of the main driving module 101 transmits a confirmation signal A to the sub-status monitoring units (1025, 1035, 1045, 1055) of each of the sub-driving modules (102, 103, 104, 105) through the main communication unit 1012 for confirmation. The confirmation signal A can be sent to all or one of the sub-driving modules (102, 103, 104, 105) at one time. This is only an example and does not limit the number of sending. After the sub-driving modules (102, 103, 104, 105) receive the confirmation signal A, the sub-status monitoring units (1025, 1035, 1045, 1055) then send the confirmation signal A to the sub-status monitoring units (1025, 1035, 1045, 1055) through the sub-communication units (1024, 105). 034, 1044, 1054) transmits a relative confirmation signal B to the main state monitoring unit 1013 of the main driving module 101, so that the main driving module 101 and the sub-driving modules (102, 103, 104, 105) monitor each other to see if a state failure occurs; furthermore, the sending interval of the confirmation signal A and the relative confirmation signal B can be adjusted according to demand, for example, the confirmation signal A is sent to each of the sub-driving modules (102, 103, 104, 105) once every 5 seconds or 10 seconds, and the sub-driving modules (102, 103, 104, 105) will send the relative confirmation signal B to the main driving module 101 after a time interval T2, thereby confirming whether the signal is abnormal.

[0042] See also Figure 7 In order to improve the accuracy of the signal so that it is not easily interfered by external noise and is not easily invaded by hackers to intervene in the control of the vehicle, in one embodiment, the main drive module 101 includes a main encryption unit 1014, and the sub-drive modules (102, 103, 104, 105) respectively include a sub-encryption unit (1026, 1036, 1046, 1056), and the signal between the main drive module 101 and the sub-drive modules (102, 103, 104, 105) is transmitted through the main encryption unit 1014 and the sub-encryption units (1026 , 1036, 1046, 1056) respectively perform encryption and decryption operations, for example, the main driving module 101 encrypts the driving signal M through the main encryption unit 1014 and sends it to the sub-driving modules (102, 103, 104, 105), and the sub-driving modules (102, 103, 104, 105) can be decrypted by the sub-encryption units (1026, 1036, 1046, 1056), so that the transmission between signals is more secure to improve the accuracy of the signals and achieve the purpose of not being easily interfered by external noise.

[0043] See also Figure 8In one embodiment, each of the sub-driving modules (102, 103, 104, 105) is coupled to the main communication unit 1012 of the main driving module 101 through the sub-communication unit (1024, 1034, 1044, 1054), so that the main driving module 101 can send the driving signal M to the sub-driving modules (102, 103, 104, 105) through the main communication unit 1012 and the sub-communication unit (1024, 1034, 1044, 1054) at the same time, and the driving signal M is transmitted through the dual transmission lines of the main communication unit 1012 and the sub-communication unit (1024, 1034, 1044, 1054) at the same time, so that each of the sub-driving modules (102, 103, 104, 105) confirms that the command is consistent to perform an action, thereby enhancing the communication anti-interference capability.

[0044] Hereinafter, the implementation method of the vehicle wire control backup system 10 will be described in detail.

[0045] See also Fig. 9 For details, please refer to Figures 1 to 8 The implementation steps of the vehicle wire control backup system 10 of the present invention are as follows:

[0046] In the first step S101 , the main driving module 101 normally receives the driving signal M sent from the electronic pedal 111 of the vehicle 11 , and sends the driving signal M to the corresponding sub-driving modules ( 102 , 103 , 104 , 105 ).

[0047] In the second step S102, the main driving module 101 and the plurality of sub-driving modules (102, 103, 104, 105) are continuously transmitting signals to determine whether the system is failed.

[0048] The third step S103 is to continuously monitor the operating status of the main driving module 101 . When the main driving module 101 is abnormal, one of the sub-driving modules ( 102 , 103 , 104 , 105 ) is selected and designated to replace the function of the main driving module 101 .

[0049] In the fourth step S104 , the driving signal M transmitted by the electronic pedal 111 of the vehicle 11 is received by the selected sub-driving module.

[0050] In the fifth step S105 , the selected sub-driving module sends the received driving signal M to other sub-driving modules to provide a stable braking function for the vehicle 11 .

[0051] In one embodiment, in the second step S102 , the signal transmitted between the main driving module 101 and the plurality of sub-driving modules ( 102 , 103 , 104 , 105 ) is an encrypted signal.

[0052] In one embodiment, in the second step S102 , the signal transmission between the main driving module 101 and the sub-driving modules ( 102 , 103 , 104 , 105 ) is mainly performed after calculation by a specific algorithm.

[0053] The vehicle wire-controlled backup system and implementation method in the embodiments of the present invention can be adjusted according to demand and current conditions to achieve a backup function for vehicles using wire-controlled brakes when the main drive module fails, to ensure that the braking function can continue to operate and maintain driving safety. In addition, the embodiments disclosed this time are illustrative in all aspects and are not the basis for restrictive interpretation. Therefore, the technical scope of the present invention is not explained solely by the above-mentioned embodiments, but is limited based on the records of the scope of the patent application. In addition, it includes the meaning equivalent to the scope of the patent application and all changes within the scope.

[0054] Description of Reference Numerals

[0055] 10: Vehicle wire control backup system

[0056] 101: Main drive module

[0057] 1011: Main control unit

[0058] 1012: Main communication unit

[0059] 1013: Main status monitoring unit

[0060] 1014: Main encryption unit

[0061] 102: Sub-driver module

[0062] 1021 Sub-control unit

[0063] 1022: Actuation module

[0064] 1023: Perception Module

[0065] 1024: Sub-communication unit

[0066] 1025: Sub-status monitoring unit

[0067] 1026: Sub-encryption unit

[0068] 103: Sub-driver module

[0069] 1034: Sub-communication unit

[0070] 1035: Sub-status monitoring unit

[0071] 1036: Sub-encryption unit

[0072] 104: Sub-driver module

[0073] 1044: Sub-communication unit

[0074] 1045: Sub-status monitoring unit

[0075] 1046: Sub-encryption unit

[0076] 105: Sub-driver module

[0077] 1054: Sub-communication unit

[0078] 1055: Sub-status monitoring unit

[0079] 1056: Sub-encryption unit

[0080] 11: Vehicles

[0081] 111: Electronic pedal

[0082] 112: Left front wheel

[0083] 113: Right front wheel

[0084] 114: Left rear wheel

[0085] 115: Right rear wheel

[0086] A: Confirmation signal

[0087] B: Relative confirmation signal

[0088] M: driving signal

[0089] T1: Time interval

[0090] T2: Time interval

[0091] S101: First Step

[0092] S102: Second step

[0093] S103: Step 3

[0094] S104: Step 4

[0095] S105: Step 5

Claims

1. A vehicle wire control backup system for braking a vehicle after receiving a driving signal from an electronic pedal of the vehicle, comprising: A plurality of sub-driving modules, each of which comprises a sub-communication unit, and each of which is coupled to the actuating module, the sensing module and the sub-communication unit, respectively, wherein each of the sub-driving modules is coupled to each other through the sub-communication unit to transmit signals, and each of the sub-driving modules is coupled to the electronic pedal through the sub-communication unit; and A main driving module includes a main control unit and a main communication unit. The main driving module is coupled to each of the sub-driving modules and the electronic pedal through the main communication unit. The main driving module transmits a signal to each of the sub-driving modules through the main communication unit, and receives the driving signal through the main communication unit. The main control unit of the main driving module receives the driving signal of the electronic pedal through the main communication unit, and then transmits the driving signal to the corresponding sub-driving module through the main communication unit to generate an action. When the operation of the main driving module is abnormal, one of the multiple sub-driving modules will be designated by the system to replace the main driving module. After receiving the driving signal through the sub-communication unit, the designated sub-driving module will further transmit the driving signal to other corresponding sub-driving modules through the sub-communication unit to generate an action.

2. The vehicle control-by-wire backup system according to claim 1, characterized in that: The sub-driving modules respectively include a sub-control unit, an actuating module, and a sensing module. The actuating module includes a motor and a reducer, and the sensing module is a wheel speed sensor.

3. The vehicle control-by-wire backup system according to claim 1, characterized in that: The main communication unit and the sub-communication unit are one of CAN BUS (Controller Area Network), CAN FD (CAN with Flexible Data-Rate), FlexRay, and Ethernet.

4. The vehicle control-by-wire backup system according to claim 1, characterized in that: The main driving module includes a main status monitoring unit, and the sub-driving module includes a sub-status monitoring unit. Under normal circumstances, the main status monitoring unit transmits a confirmation signal to the sub-status monitoring unit of each sub-driving module through the main communication unit. After the sub-driving module receives the confirmation signal, the sub-status monitoring unit transmits a relative confirmation signal to the main driving module through the sub-communication unit, so that the main driving module and the sub-driving module monitor each other to see if a status failure occurs.

5. The vehicle wire control backup system according to claim 4, characterized in that: The main drive module includes a main encryption unit, and the sub-drive module includes a sub-encryption unit. The signal transmission between the main drive module and the sub-drive module is encrypted and decrypted by the main encryption unit and the sub-encryption unit respectively to improve the signal accuracy and achieve the purpose of not being easily interfered by external noise.

6. The vehicle control-by-wire backup system according to claim 1, characterized in that: Each of the sub-driving modules is coupled to the main driving module through the sub-communication unit, so that the main driving module sends the driving signal to the sub-driving module through the main communication unit and the sub-communication unit at the same time, so that each of the sub-driving modules confirms that the command is consistent to perform actuation, thereby enhancing the communication anti-interference capability.

7. A method for implementing a vehicle wire control backup system, the implementation steps of which are as follows: The main driving module normally receives a driving signal from the electronic pedal of the vehicle, and sends the driving signal to one or more of the corresponding sub-driving modules; The main drive module and the plurality of sub-drive modules are continuously transmitted with signals to determine whether the system fails; Monitor the running state of the main driving module, and when the main driving module is abnormal, select and designate one of the plurality of sub-driving modules to replace the function of the main driving module; The driving signal transmitted by the vehicle's electronic pedal is received by the selected sub-driving module; as well as The selected sub-driving module sends the received driving signal to other sub-driving modules to provide a stable braking function for the vehicle.

8. The implementation method of the vehicle control-by-wire backup system according to claim 7, characterized in that: The signal transmitted between the main driving module and the plurality of sub-driving modules is an encrypted signal.

9. The implementation method of the vehicle control-by-wire backup system according to claim 7, characterized in that: The signal transmission between the main driving module and the sub-driving modules is mainly performed after calculation by a specific algorithm.

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