Brake-by-wire system capable of simulating controllable pedal feeling

A technology of brake-by-wire and pedals, which is applied in the direction of brake safety systems, brakes, and brake action activation devices, etc. It can solve the problems of high working environment temperature, high cost, and difficulty in realizing lightweight design and mass production. The effect of low environmental requirements and strong adaptability

Pending Publication Date: 2020-06-19
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the EMB brake system has the advantages of no brake pipeline and high braking efficiency, its cost is high, the working environment temperature is high, and the reliability requirements are too high, so it is difficult to achieve lightweight design and mass production

Method used

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  • Brake-by-wire system capable of simulating controllable pedal feeling
  • Brake-by-wire system capable of simulating controllable pedal feeling
  • Brake-by-wire system capable of simulating controllable pedal feeling

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Experimental program
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Effect test

Embodiment Construction

[0047] see Figure 1-5 Shown:

[0048] The present invention provides a controllable brake-by-wire system that simulates the feeling of pedals. Push rod 6, pedal feeling simulator 7 and electric control unit ECU8, wherein, described brake master cylinder 1 comprises master cylinder push rod 9, master cylinder piston 10 and master cylinder return spring 11, master cylinder piston 10 and cylinder A master cylinder hydraulic cavity 12 is formed between the two bodies, and the master cylinder return spring 11 is arranged in the master cylinder hydraulic cavity 12 to provide resilience for the master cylinder piston 10; the master cylinder driving device 2 is connected with the master cylinder push rod 9, and the master cylinder push rod 9 The rod 9 passes through the front end of the cylinder body and connects with the master cylinder piston 10, pushing the master cylinder piston 10 to build pressure in the master cylinder hydraulic chamber 12; The wheel cylinders 3 are connecte...

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Abstract

The invention relates to a brake-by-wire system capable of simulating controllable pedal feeling. The specific structure of the system comprises a brake main cylinder, a main cylinder driving device,a brake wheel cylinder, a liquid storage tank, a secondary main cylinder, a pedal push rod, a pedal feeling simulator and an electronic control unit (ECU), the brake system has three brake functions of conventional brake, active brake and failure backup, and the conventional brake comprises three processes of pressurization, pressure maintaining and pressure reduction. Decoupling of a brake pedaland a brake wheel cylinder is realized, and various complex pedal counterforces can be simulated by adjusting the reversing valve pedal feeling simulator so as to match drivers of different driving styles; a pedal travel sensor can realize identification of the braking intention of a driver; and a linear pressure regulating valve can achieve accurate control over the pressure of the brake wheel cylinder.

Description

technical field [0001] The invention relates to a brake-by-wire system, in particular to a brake-by-wire system with controllable simulated pedal feel. Background technique [0002] The birth and development of automobiles have brought convenience to human daily travel and made the world economy more dynamic. At the same time, the development of the automobile industry has also brought some adverse effects on the environment, transportation, travel safety, energy, etc. Therefore, "safety, energy saving, and environmental protection" has become the theme of the current automobile industry development, which makes the active Safety technology, new energy technology and intelligent technology have developed rapidly. Among them, the braking system is closely related to the driving safety of the car, and has always been a hot spot of people's research and development. [0003] The traditional braking system technology is relatively mature, but with the development of automobile...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60T8/40B60T7/04B60T17/22
CPCB60T8/409B60T7/042B60T17/22
Inventor 朱冰靳万里赵健冯浩卜纯研杨港张伊晗
Owner JILIN UNIV
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