Vehicle brake redundancy system and method and vehicle

A technology of vehicle braking and redundant systems, which is applied in the direction of braking safety systems, brakes, vehicle components, etc., and can solve problems such as inability to perform automatic emergency braking

Active Publication Date: 2022-07-08
GUANGZHOU AUTOMOBILE GROUP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a vehicle brake redundancy system and its method, and a vehicle, which can solve the problem that the emergency brake backup of the existing vehicle cannot perform automatic emergency braking after the failure of the ABS / ESC module

Method used

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  • Vehicle brake redundancy system and method and vehicle
  • Vehicle brake redundancy system and method and vehicle
  • Vehicle brake redundancy system and method and vehicle

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Embodiment Construction

[0028] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0029] It should be understood that the step numbers used in the text are only for the convenience of description, and are not intended to limit the order in which the steps are performed.

[0030] It should be understood that the terms used in the present specification are only for the purpose of describing particular embodiments and are not intended to limit the present invention. As used in this specification and the appended clai...

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Abstract

The invention discloses a vehicle brake redundancy system and method and a vehicle. The system comprises a main control unit, an energy storage unit and a brake assembly unit. The energy storage unit comprises an energy storage main body, and a high-pressure air source, an electronic valve, a piston and a backup hydraulic pressure which are arranged in the energy storage main body, the high-pressure air source and the backup hydraulic pressure are separated by the electronic valve and the piston, and the output end of the energy storage main body is connected with the brake assembly unit; the main control unit is connected with the electronic valve and used for controlling the electronic valve to be opened when it is detected that the vehicle braking system fails, so that the high-pressure air source pushes the piston, and then backup hydraulic pressure is injected into the brake wheel cylinder. The method can be used for automatic emergency braking backup, and meets the safety backup and redundancy requirements of L3 and L4 level unmanned driving.

Description

technical field [0001] The present invention relates to the technical field of vehicle control, and in particular, to a vehicle braking redundancy system, a method thereof, and a vehicle. Background technique [0002] At present, the braking system is an indispensable part of modern passenger cars. By stepping on the brake pedal, the pressure of the line is formed, and the caliper piston pushes the friction pad to frictionally contact the brake disc to reduce the driving speed or stop, and protect the members and the passengers. Pedestrian safety. In order to improve the driving safety performance of the vehicle, the vehicle is also equipped with emergency braking backup, which is mainly realized through ABS (Antilock Brake System, anti-lock braking system) / ESC (Electronic Stability Controller, body electronic stability control system). Among them, the ESC system is composed of sensors, electronic control unit (ECU) and actuators. The electronic control unit monitors the ru...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60T13/68B60T17/22
CPCB60T13/683B60T17/22B60T2270/402
Inventor 刘浪许世堂
Owner GUANGZHOU AUTOMOBILE GROUP CO LTD
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