Brake redundancy backup system suitable for automatic driving, and brake method

Abstract

The invention relates to a brake redundancy backup system suitable for automatic driving, and a brake method. A data acquisition sensor group is connected with an integrated electronic booster and a brake backup unit and is used for acquiring vehicle running state data; an automatic driving auxiliary subsystem is connected with the integrated electronic booster and the brake backup unit through anautomobile bus and is used for generating a brake instruction according to the vehicle running state data; the integrated electronic booster is connected with the four wheels and the two electronic parking actuators and used for responding to the braking instruction and conducting braking; and the brake backup unit is connected with the four wheels and the two electronic parking actuators and used for responding to a brake instruction and conducting braking when the integrated electronic booster breaks down. According to the system, the problem that in the related art, only research on backupof one aspect of electric power voltage buildup, ABS, electronic parking and the like is focused, and systematic integration of all functional modules and research on a highly redundant backup schemeare not performed can be solved.

Description

technical field [0001] The present application relates to the technical field of automatic driving vehicle braking, in particular to a braking redundancy backup system and braking method suitable for automatic driving. Background technique [0002] Automated driving technology has been in development for decades. At the beginning of the 21st century, it showed a trend close to practicality. Autonomous driving is to sense the road environment through the on-board sensor system, automatically plan the driving route and control the vehicle to reach the predetermined target. [0003] The realization of automatic driving benefits from the development of brake-by-wire technology. Brake-by-wire has the advantages of fast response and high precision, and gradually replaces traditional vacuum assist in advanced driver assistance systems. However, potential failures and Failure will cause safety hazards to the braking system. Ensuring the safety and reliability of the braking system...

AI Technical Summary

Problems solved by technology

[0007] The embodiment of the present application provides a brake redundancy backup system and a braking method suitable for automatic driving, so as to solve the problem of research on the backup of a certain aspect such as electric power booster pressure building, ABS, electronic parking, etc. , but did not study the systematic integration of each functional module and the highly redundant backup scheme

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