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Brake-by-wire system for automobile

A technology of automobile wires and brakes, which is applied in braking safety systems, brakes, brake transmission devices, etc., and can solve problems such as braking force failure.

Pending Publication Date: 2020-01-07
TSINGHUA UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention provides a brake-by-wire system for automobiles, so as to avoid the problem of failure of braking force caused by failure of a certain part of the booster mechanism during the running of the automobile

Method used

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  • Brake-by-wire system for automobile

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Embodiment Construction

[0044] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Apparently, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0045] It should be noted that the terms "include" and "have" and any variations thereof in the embodiments of the present invention and the drawings are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the listed steps or units, but optionally also includes steps or units that are not listed, or optionally further includes For other steps or units inhe...

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Abstract

The embodiment of the invention discloses a brake-by-wire system for an automobile. The system involves a master controller, a brake pedal, a brake pushrod, a fully decoupled brake simulator, an actuator front shell body, an actuator rear shell body, a normally closed solenoid valve, an anti-locking device, a first brake, a second brake, a third brake, a fourth brake, a displacement sensor, a first ball bearing, a second ball bearing, a third ball bearing, a fourth ball bearing, a first speed reducing and torque increasing mechanism, a second speed reducing and torque increasing mechanism, a first power assisting motor, a second power assisting motor, a first brake master cylinder, a second brake master cylinder, a first normally open solenoid valve, a second normally open solenoid valve,a first pressure sensor, and a second pressure sensor. According to the scheme provided by the brake-by-wire system, the problem of invalid braking force caused by the failure of a certain part of a power assisting mechanism in the travelling process of the automobile can be avoided, the response speed of the brake-by-wire system for the automobile is improved, and the control difficulty of the stability of the brake-by-wire system is reduced.

Description

technical field [0001] The invention relates to the technical field of automobile brake systems, in particular to an automobile brake-by-wire system. Background technique [0002] At present, automobiles mainly use the brake-by-wire system for braking. The brake-by-wire system in the existing scheme includes a controller and a booster mechanism. [0003] The working principle of the brake-by-wire system in the existing solution is: when the driver steps on the brake pedal, the controller controls the booster motor to drive the deceleration and torque-increasing mechanism to generate a forward thrust, which is jointly promoted by the driver's pedaling force. The dual-cylinder brake master cylinder generates the braking force. But once any part of the booster mechanism in the system breaks down, the braking force during the running of the car cannot be guaranteed. A brake-by-wire system that avoids braking loss. Contents of the invention [0004] The invention provides a ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60T13/74B60T8/171B60T17/18
CPCB60T13/745B60T8/171B60T17/18
Inventor 于良耀刘晓辉谢泽金陈益吴翔王燕文
Owner TSINGHUA UNIV
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