Integrated electronic parking redundant system

Abstract

The utility model relates to the technical field of vehicle braking systems, in particular to an integrated electronic parking redundant system. Comprising a main control module, a redundancy control module, a sensing module and a braking module. Wherein the main control module is used for outputting a first parking instruction based on a preset main control logic so as to realize parking control of the electronic parking redundant system; the redundancy control module is used for outputting a second parking instruction based on preset redundancy control logic so as to realize parking control of the electronic parking redundancy system; the sensing module is connected with the main control module and the redundancy control module, and is used for monitoring a preset function module of a target vehicle system to obtain a parking trigger signal; the braking module is connected with the main control module and the redundancy control module, the braking module is used for conducting parking braking on a target vehicle, the braking module is controlled by the main control module, and when the main control module fails, the braking module is controlled by the redundancy control module. The system can improve the stability of the parking system.

Description

Technical Field

[0001] This application relates to the field of vehicle braking system technology, and in particular to an integrated electronic parking redundancy system. Background Technology

[0002] A vehicle parking system refers to a series of devices and technologies used to secure and park a motor vehicle. Its main function is to ensure the vehicle remains stable when parked, preventing accidental slippage or displacement, while also facilitating driver operation while parking. A vehicle parking system typically includes a parking brake, wheel locking devices, and a suspension system. The parking brake can include mechanical parking brakes, electronically controlled parking brakes, automatic parking systems, and anti-slip parking devices. The vehicle parking system is an indispensable part of modern vehicles, ensuring the basic function of safe parking. From traditional manual handbrakes to modern intelligent electronic control systems, parking system technology has continuously evolved to adapt to the increasing demands for safety and convenience. With the advent of the era of autonomous driving and electrification, vehicle parking systems have the potential to achieve even higher levels of intelligence and automation.

[0003] In related technologies, the Electronic Parking Brake (EPB) system achieves parking braking through electronic control technology, replacing the traditional mechanical lever and cable structure. When the EPB caliper is engaged, the motor drives the gears or screw, pushing the brake pads to apply force to the brake disc, completing the braking process. According to standards, vehicles equipped with EPB must still be able to park fully loaded on an 8% gradient slope when the wiring harness (excluding the power supply line) or control axle fails. Conventional solutions typically use a P-gear lock to meet the standard requirements. Vehicles equipped with a parking gear lock mechanism lock the transmission when the vehicle is in P gear, assisting in parking.

[0004] However, current electronic parking systems have the following technical problems:

[0005] The existing electronic parking system is difficult to meet the requirements of the standard, and there is still considerable room for optimization. Utility Model Content

[0006] Therefore, it is necessary to provide an integrated electronic parking redundancy system that can improve the stability of the electronic parking system and enhance its parking operation stability in abnormal scenarios.

[0007] This application provides an integrated electronic parking redundancy system, including:

[0008] The main control module is used to output a first parking command based on a preset main control logic in order to realize the parking control of the electronic parking redundancy system.

[0009] A redundancy control module is used to output a second parking command based on preset redundancy control logic in order to realize the parking control of the electronic parking redundancy system.

[0010] The sensing module is connected to both the main control module and the redundant control module, and is used to monitor the preset functional modules of the target vehicle system in order to obtain parking trigger signals.

[0011] A braking module is connected to the main control module and the redundant control module. The braking module is used to apply parking brake to the target vehicle. The braking module is controlled by the main control module. When the main control module fails, the braking module is controlled by the redundant control module.

[0012] In one embodiment, the braking module includes:

[0013] The first motor drive unit is connected to the redundant control module. The first motor drive unit is controlled by the redundant control module and is used to control the corresponding end brake to perform parking braking.

[0014] The second motor drive unit is connected to both the main control module and the redundant control module. The second motor drive unit is controlled by the main control module or the redundant control module and is used to control the corresponding end brake to perform parking braking.

[0015] In one embodiment, the system includes:

[0016] The first instruction switching module is located between the second motor drive unit and the main control module and the redundant control module, and is used to switch the control instructions output to the second motor drive unit.

[0017] In one embodiment, the first motor drive unit is also connected to the main control module, and the system further includes:

[0018] The second instruction switching module is located between the first motor drive unit, the main control module, and the redundant control module, and is used to switch the control instructions output to the first motor drive unit.

[0019] In one embodiment, the sensing module includes:

[0020] The brake switch unit is connected to the main control module and is used to acquire the parking trigger signal, which is determined according to the on / off state of the brake switch.

[0021] In one embodiment, the sensing module further includes:

[0022] The vehicle communication network unit is connected to the main control module and is used to acquire the parking trigger signal, which is determined based on the interaction signal of the vehicle communication network.

[0023] In one embodiment, the sensing module further includes:

[0024] The wheel speed sensing unit is connected to the main control module and the redundant control module, and is used to acquire the wheel speed detection signal of the target vehicle.

[0025] The main control module and the redundant control module are also used to perform parking brake control of the target vehicle based on the wheel speed detection signal and the parking trigger signal.

[0026] In one embodiment, the wheel speed sensing unit includes:

[0027] A wheel speed detection device, wherein several groups of wheel speed detection devices are provided and distributed on different wheels of the target vehicle, and all wheel speed detection devices are simultaneously connected to the main control module and the redundant control module.

[0028] In one embodiment, the system further includes:

[0029] A connection module is provided between the main control module and the redundant control module, and is used to realize signal transmission between the main control module and the redundant control module;

[0030] The connection module includes several sets of independent connection units, which are used to support signal transmission between the main control module and the redundant control module when other connection units are abnormal.

[0031] In one embodiment, the system further includes:

[0032] A power supply module is connected to the main control module and the redundant control module respectively, and is used to supply power to the main control module and the redundant control module.

[0033] The power module includes a main power supply unit and a redundant power supply unit.

[0034] The aforementioned integrated electronic parking redundancy system, derived from the technical features in the claims, can achieve the following beneficial effects to address the technical problems raised in the background art:

[0035] An integrated electronic parking redundancy system includes a main control module, a redundancy control module, a sensing module, and a braking module. The main control module outputs a first parking command based on preset main control logic to achieve parking control of the electronic parking redundancy system. The redundancy control module outputs a second parking command based on preset redundancy control logic to achieve parking control of the electronic parking redundancy system. The sensing module is connected to both the main control module and the redundancy control module and monitors preset functional modules of the target vehicle system to obtain parking trigger signals. The braking module is connected to both the main control module and the redundancy control module, and is used to apply parking brake to the target vehicle. The braking module is controlled by the main control module, and when the main control module fails, the braking module is controlled by the redundancy control module. In implementation, the system includes a main control module and a redundant control module. Both modules control the braking module to achieve parking brake. When the sensing module monitors the preset functional modules of the target vehicle system and determines the parking trigger signal, it can determine the driver's parking intention and trigger further parking brake. At this time, the main control module can output a first parking command based on preset main control logic, controlling the braking module to perform parking brake. If the main control module malfunctions and fails to control the braking module, the redundant control module outputs a second parking command based on preset redundant control logic to achieve parking brake control. This ensures that the system still has the ability to control the braking module even if the main control unit fails, ultimately improving the stability of the parking system. Attached Figure Description

[0036] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0037] Figure 1 This is a schematic diagram of the system structure of an integrated electronic parking redundancy system according to an embodiment of this application;

[0038] Figure 2 This is a connection diagram of an integrated electronic parking redundancy system with single-sided dual control in one embodiment of this application;

[0039] Figure 3 This is a connection diagram of a dual-sided dual-control integrated electronic parking redundancy system in one embodiment of this application;

[0040] Figure 4This is a connection diagram of an integrated electronic parking redundancy system according to another embodiment of this application.

[0041] Explanation of reference numerals in the attached drawings: 100, Main control module; 200, Redundant control module; 300, Sensing module; 301, Brake switch unit; 302, Vehicle communication network unit; 303, Wheel speed sensing unit; 3031, Wheel speed detection device; 400, Braking module; 401, First motor drive unit; 402, Second motor drive unit; 500, First command switching module; 600, Second command switching module; 700, Connection module; 800, Power supply module; 801, Main power supply unit; 802, Redundant power supply unit. Detailed Implementation

[0042] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings, which illustrate embodiments of the present application. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this application will be thorough and complete.

[0043] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0044] It is understood that the terms "first," "second," etc., used herein may be used to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish one element from another. For example, without departing from the scope of this application, a first resistor may be referred to as a second resistor, and similarly, a second resistor may be referred to as a first resistor. Both the first resistor and the second resistor are resistors, but they are not the same resistor.

[0045] It is understood that the term "connection" in the following embodiments should be understood as "electrical connection," "communication connection," etc., if the connected circuits, modules, units, etc., have electrical signal or data transmission with each other.

[0046] It is understandable that "at least one" refers to one or more, and "multiple" refers to two or more. "At least a part of an element" refers to part or all of an element.

[0047] When used herein, the singular forms of “a,” “an,” and “the” may also include the plural forms unless the context clearly indicates otherwise. It should also be understood that the terms “comprising / including” or “having,” etc., specify the presence of the stated features, wholes, steps, operations, components, parts, or combinations thereof, but do not preclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts, or combinations thereof. Meanwhile, the term “and / or” as used in this specification includes any and all combinations of the associated listed items.

[0048] This application is based on the inventor's understanding and research on the following issues, specifically:

[0049] In related technologies, the Electronic Parking Brake (EPB) system achieves parking braking through electronic control technology, replacing the traditional mechanical lever and cable structure. When the EPB caliper is engaged, the motor drives the gears or screw, pushing the brake pads to apply force to the brake disc, completing the braking process. According to standards, vehicles equipped with EPB must still be able to park fully loaded on an 8% gradient slope when the wiring harness (excluding the power supply line) or control axle fails. Conventional solutions typically use a P-gear lock to meet the standard requirements. Vehicles equipped with a parking gear lock mechanism lock the transmission when the vehicle is in P gear, assisting in parking.

[0050] However, current electronic parking systems have the following technical problems:

[0051] The existing electronic parking system is difficult to meet the requirements of the standard, and there is still considerable room for optimization.

[0052] Based on this, embodiments of this application provide an integrated electronic parking redundancy system. It can be as follows: Figure 1 and Figure 2 As shown. Figure 1 The diagram shows a schematic representation of an integrated electronic parking redundancy system according to an embodiment of this application. Figure 2 The diagram shows a connection schematic of an integrated electronic parking redundancy system with single-sided dual control according to an embodiment of this application. This application provides an integrated electronic parking redundancy system, including a main control module 100, a redundancy control module 200, a sensing module 300, and a braking module 400, wherein:

[0053] The main control module 100 is used to output a first parking command based on a preset main control logic to realize the parking control of the electronic parking redundancy system;

[0054] The redundancy control module 200 is used to output a second parking command based on a preset redundancy control logic to realize the parking control of the electronic parking redundancy system.

[0055] The sensing module 300 is connected to both the main control module 100 and the redundant control module 200, and is used to monitor the preset functional modules of the target vehicle system in order to obtain the parking trigger signal.

[0056] The braking module 400 is connected to the main control module 100 and the redundant control module 200. The braking module 400 is used to apply parking brake to the target vehicle. The braking module 400 is controlled by the main control module 100. When the main control module 100 fails, the braking module 400 is controlled by the redundant control module 200.

[0057] By implementing the aforementioned integrated electronic parking redundancy system, the following beneficial effects can be achieved:

[0058] An integrated electronic parking redundancy system includes a main control module 100, a redundancy control module 200, a sensing module 300, and a braking module 400. The main control module 100 outputs a first parking command based on preset main control logic to achieve parking control of the electronic parking redundancy system. The redundancy control module 200 outputs a second parking command based on preset redundancy control logic to achieve parking control of the electronic parking redundancy system. The sensing module 300 is connected to both the main control module 100 and the redundancy control module 200 and monitors preset functional modules of the target vehicle system to obtain parking trigger signals. The braking module 400 is connected to both the main control module 100 and the redundancy control module 200, and is used to apply parking brake to the target vehicle. The braking module 400 is controlled by the main control module 100, and when the main control module 100 fails, the braking module 400 is controlled by the redundancy control module 200. In implementation, the system includes a main control module 100 and a redundant control module 200. Both modules control the braking module 400 to achieve parking brake. When the sensing module 300 monitors the preset function modules of the target vehicle system and determines the parking trigger signal, it can determine the driver's parking intention and trigger further parking brake. At this time, the main control module 100 can output a first parking command based on preset main control logic to control the braking module 400 to perform parking brake. If the main control module 100 malfunctions and fails to control the braking module 400, the redundant control module 200 outputs a second parking command based on preset redundant control logic to achieve parking brake control of the braking module 400. In this way, the system can still control the braking module 400 even if the main control unit fails, ultimately improving the stability of the parking system.

[0059] In one embodiment, the braking module 400 includes:

[0060] The first motor drive unit 401 is connected to the redundant control module 200. The first motor drive unit 401 is controlled by the redundant control module 200 and is used to control the corresponding end brake to perform parking braking.

[0061] The second motor drive unit 402 is connected to both the main control module 100 and the redundant control module 200. The second motor drive unit 402 is controlled by the main control module 100 or the redundant control module 200 and is used to control the corresponding end brake to perform parking braking.

[0062] In this embodiment, the braking module 400 is provided with a first motor drive unit 401 and a second motor drive unit 402. The two motor drive units form a single-sided single-control system architecture, which can improve the stability of the parking brake, improve the braking effect, and enhance the braking force of the parking brake.

[0063] In one embodiment, the system includes:

[0064] The first instruction switching module 500 is located between the second motor drive unit 402, the main control module 100, and the redundant control module 200, and is used to switch the control instructions output to the second motor drive unit 402.

[0065] Specifically, the first command switching module 500 is located between the second motor drive unit 402 and the main control module and redundant control module 200. It can receive the first parking command output by the main control module 100 and the second parking command output by the redundant control module 200, and control the second motor drive unit 402. Under normal signal transmission between the main control module 100 and the redundant control module 200, after the first parking command and the second parking command are input to the first command switching module 500, the first command switching module 500 can control the second motor drive unit 402 according to the preset priority of the first parking command and the second parking command. For example, when the system is in normal condition, the main control module 100 can control the second motor drive unit 402 normally, causing the vehicle to enter the parking state. At this time, the first parking command in the first command switching module 500 has a higher priority than the second parking command. After receiving the first parking command and the second parking command, the first command switching module 500 outputs the first parking command. When the main control module 100 and the redundant control module 200 communicate normally, but the main control module 100 cannot control the second motor drive unit 402 normally, causing the vehicle to enter the parking state, the first command switching module 500 can receive the first parking command, but a fault occurs during the execution of the first parking command. The sensing module 300 detects that the vehicle has not entered the parking state, and the sensing module transmits the sensing signal at this time to the main control module 100 and the redundant control module 200. After receiving a switching signal from either the main control module 100 or the redundant control module 200, the first instruction switching module 500 adjusts the priority of the first parking instruction in the first instruction switching module 500 to be lower than that of the second parking instruction. After receiving both the first and second parking instructions, the first instruction switching module 500 outputs the second parking instruction. When the system status is abnormal, the main control module 100 and the redundant control module 200 communicate abnormally, the main control module 100 cannot control the second motor drive unit 402 normally, causing the vehicle to enter the parking state, and it is difficult to transmit the priority settings of the first and second parking instructions through signals, the first instruction switching module 500 outputs the second parking instruction after receiving the second parking instruction to control the second motor drive unit 402 to achieve parking braking.

[0066] In this embodiment, an instruction switching module is set in the system to switch the output of two control instructions from the main control module 100 and the redundant control module 200, forming a single-sided dual-control redundant control architecture, which helps to improve the stability of system control.

[0067] In one embodiment, the first motor drive unit 401 is also connected to the main control module 100, and the system further includes:

[0068] The second instruction switching module 600 is located between the first motor drive unit 401, the main control module 100, and the redundant control module 200, and is used to switch the control instructions output to the first motor drive unit 401.

[0069] For example, the functional logic of the second instruction switching module 600 is similar to that of the first instruction switching module 500, and will not be described in detail here.

[0070] In this embodiment, the system is also equipped with a second instruction switching module 600. By setting up two instruction switching modules, two control modules and two braking modules 400, a redundant control architecture with dual sides and dual controls is realized, which helps to further improve the stability of the system's redundant control.

[0071] In one embodiment, the sensing module 300 includes:

[0072] The brake switch unit 301 is connected to the main control module 100 and is used to acquire the parking trigger signal, which is determined according to the on / off state of the brake switch.

[0073] In this embodiment, the sensing module 300 includes a brake switch unit 301. The brake switch unit 301 helps to detect the on / off state of the on-board mechanical switch on the target vehicle, thereby obtaining the parking trigger signal and improving the convenience of vehicle parking control.

[0074] In one embodiment, the sensing module 300 further includes:

[0075] The vehicle communication network unit 302 is connected to the main control module 100 and is used to acquire the parking trigger signal, which is determined based on the interaction signal of the vehicle communication network.

[0076] For example, the vehicle communication network unit 302 may include CAN, FlexRay, EtherNet, etc.

[0077] In this embodiment, the sensing module 300 includes a vehicle communication network unit 302. The vehicle communication network unit 302 helps to utilize the vehicle communication network unit 302 on the target vehicle, determine the operator's parking intention through interactive information, and obtain the parking trigger signal, which helps to improve the convenience of vehicle parking control.

[0078] In one embodiment, the sensing module 300 further includes:

[0079] The wheel speed sensing unit 303 is connected to the main control module 100 and the redundant control module 200, and is used to acquire the wheel speed detection signal of the target vehicle.

[0080] The main control module 100 and the redundant control module 200 are further configured to perform parking brake control of the target vehicle based on the wheel speed detection signal and the parking trigger signal.

[0081] In this embodiment, the sensing module 300 is also provided with a wheel speed sensing unit 303. The wheel speed sensing unit 303 helps to detect the vehicle status and determine whether the vehicle status meets the requirements of parking brake. Combining the wheel speed detection signal and the parking trigger signal together to determine whether to perform parking brake helps to improve the safety of the system.

[0082] In one embodiment, the wheel speed sensing unit 303 includes:

[0083] Wheel speed detection device 3031, wherein several sets of wheel speed detection devices 3031 are provided and distributed on different wheels of the target vehicle, and all wheel speed detection devices 3031 are simultaneously connected to the main control module 100 and the redundant control module 200.

[0084] In this embodiment, the wheel speed sensing unit 303 includes several sets of wheel speed detection devices 3031. All wheel speed detection devices 3031 are connected to the main control module 100 and the redundant control module 200, thereby realizing independent wheel speed detection on each side, which helps to further improve the stability of the system.

[0085] In one embodiment, the system further includes:

[0086] A connection module 700 is disposed between the main control module 100 and the redundant control module 200, and is used to realize signal transmission between the main control module 100 and the redundant control module 200.

[0087] The connection module 700 includes several sets of independent connection units, which are used to support signal transmission between the main control module 100 and the redundant control module 200 when other connection units are abnormal.

[0088] For example, the connection unit includes CAN, SPI, UART, etc. The signals transmitted between the main control module 100 and the redundant control module 200 may include PWM signals, analog levels, etc.

[0089] In this embodiment, the connection module 700 set between the main control module 100 and the redundant control module 200 includes several independent connection units. The connection units enable signal transmission under abnormal scenarios, which helps to improve the stability of signal transmission.

[0090] In one embodiment, the system further includes:

[0091] A power module 800 is connected to the main control module 100 and the redundant control module 200 respectively, and is used to supply power to the main control module 100 and the redundant control module 200.

[0092] The power module 800 includes a main power supply unit 801 and a redundant power supply unit 802.

[0093] In this embodiment, a power supply module 800 is provided to supply power to the main control module 100 and the redundant control module 200. The main power supply unit 801 is connected to the main control module 100, and the redundant power supply unit is connected to the redundant control module 200. Furthermore, the main power supply unit 801 is connected to the first motor drive unit 401 for power supply, and the redundant power supply unit 802 is connected to the second motor drive unit 402 for power supply. The redundant power supply unit 802 can be connected to both the first motor drive unit 401 and the second motor drive unit 402 simultaneously to provide auxiliary power supply in abnormal scenarios, which helps to further improve the stability of the system.

[0094] It is understood that the aforementioned integrated electronic parking redundancy system can also take other forms, not limited to those mentioned in the above embodiments, as long as it can achieve the function of improving the stability of the parking brake.

[0095] In the description of this specification, references to terms such as "some embodiments," "other embodiments," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative descriptions of the above terms do not necessarily refer to the same embodiments or examples.

[0096] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0097] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these modifications and improvements all fall within the protection scope of this application. Therefore, the protection scope of this application should be determined by the appended claims.

Claims

1. An integrated electronic parking redundancy system, characterized in that, include: The main control module is used to output a first parking command based on a preset main control logic in order to realize the parking control of the electronic parking redundancy system. A redundancy control module is used to output a second parking command based on preset redundancy control logic in order to realize the parking control of the electronic parking redundancy system. The sensing module is connected to both the main control module and the redundant control module, and is used to monitor the preset functional modules of the target vehicle system in order to obtain parking trigger signals. A braking module is connected to the main control module and the redundant control module. The braking module is used to apply parking brake to the target vehicle. The braking module is controlled by the main control module. When the main control module fails, the braking module is controlled by the redundant control module.

2. The integrated electronic parking redundancy system according to claim 1, characterized in that, The braking module includes: The first motor drive unit is connected to the redundant control module. The first motor drive unit is controlled by the redundant control module and is used to control the corresponding end brake to perform parking braking. The second motor drive unit is connected to both the main control module and the redundant control module. The second motor drive unit is controlled by the main control module or the redundant control module and is used to control the corresponding end brake to perform parking braking.

3. The integrated electronic parking redundancy system according to claim 2, characterized in that, The system includes: The first instruction switching module is located between the second motor drive unit and the main control module and the redundant control module, and is used to switch the control instructions output to the second motor drive unit.

4. The integrated electronic parking redundancy system according to claim 3, characterized in that, The first motor drive unit is also connected to the main control module, and the system further includes: The second instruction switching module is located between the first motor drive unit, the main control module, and the redundant control module, and is used to switch the control instructions output to the first motor drive unit.

5. An integrated electronic parking redundancy system according to claim 1, characterized in that, The sensing module includes: The brake switch unit is connected to the main control module and is used to acquire the parking trigger signal, which is determined according to the on / off state of the brake switch.

6. The integrated electronic parking redundancy system according to claim 1, characterized in that, The sensing module also includes: The vehicle communication network unit is connected to the main control module and is used to acquire the parking trigger signal, which is determined based on the interaction signal of the vehicle communication network.

7. An integrated electronic parking redundancy system according to any one of claims 5 to 6, characterized in that, The sensing module also includes: The wheel speed sensing unit is connected to the main control module and the redundant control module, and is used to acquire the wheel speed detection signal of the target vehicle. The main control module and the redundant control module are also used to perform parking brake control of the target vehicle based on the wheel speed detection signal and the parking trigger signal.

8. An integrated electronic parking redundancy system according to claim 7, characterized in that, The wheel speed sensing unit includes: A wheel speed detection device, wherein several groups of wheel speed detection devices are provided and distributed on different wheels of the target vehicle, and all wheel speed detection devices are simultaneously connected to the main control module and the redundant control module.

9. An integrated electronic parking redundancy system according to claim 1, characterized in that, The system also includes: A connection module is provided between the main control module and the redundant control module, and is used to realize signal transmission between the main control module and the redundant control module; The connection module includes several sets of independent connection units, which are used to support signal transmission between the main control module and the redundant control module when other connection units are abnormal.

10. An integrated electronic parking redundancy system according to claim 1, characterized in that, The system also includes: A power supply module is connected to the main control module and the redundant control module respectively, and is used to supply power to the main control module and the redundant control module. The power module includes a main power supply unit and a redundant power supply unit.

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