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Vehicle brake-by-wire method, system, equipment and storage medium

A technology of brake-by-wire and storage medium, applied in braking safety systems, brakes, vehicle components, etc., can solve the problems of complex redundant braking scheme, prolonging braking response time, and high cost, shortening response time, reducing The effect of development cost and reduction of maintenance and replacement cost

Active Publication Date: 2021-11-19
DONGFENG MOTOR GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The main purpose of the present invention is to provide a vehicle brake-by-wire method, system, equipment and storage medium, aiming at solving the problem of complicated vehicle-by-wire redundant braking scheme, high cost and prolonged braking response time in the prior art. technical problem

Method used

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  • Vehicle brake-by-wire method, system, equipment and storage medium
  • Vehicle brake-by-wire method, system, equipment and storage medium
  • Vehicle brake-by-wire method, system, equipment and storage medium

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Embodiment Construction

[0046] It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0047] The solution of the embodiment of the present invention is mainly: obtain the brake deceleration request through the hydraulic unit, and judge whether the hydraulic unit is invalid; when the hydraulic unit is valid, the hydraulic unit performs braking control on the four wheels of the vehicle; When the hydraulic unit fails, the failed hydraulic unit exits the control, the effective hydraulic unit hydraulically brakes the wheel corresponding to the effective hydraulic unit, and mechanically clamps the electronic parking caliper in the wheel corresponding to the failed hydraulic unit Braking can reduce the complexity of pipeline layout and hydraulic unit, simplify the structure of the brake system, make the space layout more flexible, reduce the development cost of main brake and backup brake, and significantly re...

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Abstract

The invention discloses a vehicle brake-by-wire method, a system, equipment and a storage medium. The method comprises the steps: a hydraulic unit acquires a brake deceleration request, and whether the hydraulic unit fails or not is judged; when the hydraulic unit is effective, the hydraulic unit performs brake control on four wheels of the vehicle; and when the hydraulic unit fails, the failed hydraulic unit quits control, and an effective hydraulic unit performs hydraulic braking on the wheel corresponding to the effective hydraulic unit and performs mechanical clamping braking on the electronic parking caliper in the wheel corresponding to the failed hydraulic unit, so that the complexity of pipeline arrangement and the hydraulic unit can be reduced. Therefore, the brake system is more simplified in structure and more flexible in spatial arrangement, the development cost of main brake and backup brake is reduced, meanwhile, the maintenance and replacement cost of the system can be remarkably reduced, and the response time of brake-by-wire is shortened.

Description

technical field [0001] The present invention relates to the technical field of vehicle driving assistance, in particular to a vehicle brake-by-wire method, system, device and storage medium. Background technique [0002] With the development of intelligent driving and brake-by-wire technology, in order to ensure the reliability of the brake-by-wire system, domestic and foreign institutions have conducted a lot of research and verification on the hardware settings and software control strategies of redundant backup braking, and some redundant backup The control scheme has been applied in production vehicles. [0003] There are many kinds of redundant backup schemes at present. The commonly used brake-by-wire system is composed of electronic booster and ESC. Electronic Stability Control (ESC) is used as backup brake. The control braking system generally uses the driver's manpower to step on the brake pedal for backup braking, which can adapt to the needs of the driver's auxil...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60T13/66B60T13/74B60T17/22
CPCB60T13/66B60T13/741B60T17/22
Inventor 尹佳超王平徐小卫闫涛卫崔玉涛
Owner DONGFENG MOTOR GRP
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