A brake pedal simulator, a vehicle braking system and a vehicle

A technology of automobile braking system and brake pedal, which is applied in the direction of brakes, brake action activation devices, vehicle components, etc., can solve the problems of large fluctuations in simulated pedal force, operation stability, low, complex structure, etc., and achieve stable operation Good performance, reliable braking feeling, and the effect of maintaining the braking function

Active Publication Date: 2019-01-15
BYD CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the pedal simulator using this hydraulic control method not only has a complex structure, but also has the problem of low operating stability due to large fluctuations in the simulated pedal force due to the hydraulic shock of the hydraulic system.

Method used

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  • A brake pedal simulator, a vehicle braking system and a vehicle
  • A brake pedal simulator, a vehicle braking system and a vehicle
  • A brake pedal simulator, a vehicle braking system and a vehicle

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Embodiment Construction

[0040] Specific embodiments of the present disclosure will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present disclosure, not to limit the present disclosure.

[0041] In the present disclosure, the used orientation words such as "inside and outside" generally refer to the inside and outside of the outline of the corresponding part unless stated to the contrary.

[0042] The disclosure provides a brake pedal simulator, a brake system of an automobile and a technical solution of the vehicle. The brake pedal simulator of the present disclosure realizes simulating the characteristics of the brake pedal through the elastic member and the braking method. Here, the characteristics of the brake pedal are usually reflected by the corresponding relationship between the pedal force, the pedal travel and the brake response time . The brake pe...

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Abstract

A brake pedal simulator, a vehicle braking system and a vehicle are provided. The brake pedal simulator includes a brake pedal, a booster motor, an assembly portion, a first elastic member and a second elastic member arranged at axially spaced intervals on one side of the assembly portion, a rack and pinion mechanism positioned between the two elastic members, a thrust structure hinged to the brake pedal and capable of sequentially driving the first elastic member and the second elastic member to telescopically retract in the axial direction. The first elastic member provides a pedal preset force to the brake pedal, the output shaft of the booster motor is capable of cooperating with the second elastic member through the rack-and-pinion mechanism to provide assistance for the driving of the thrust structure, the first elastic member is compressed through the thrust mechanism in a first working state, and the first elastic member and the second elastic member are compressed synchronously through the cooperation of the thrust structure and the booster motor in a second working state. This provides a reliable braking feel of the brake pedal and simulates an accurate brake pedal force,and has the effects of good operation stability and corresponding quick brake pedal.

Description

technical field [0001] The present disclosure relates to the technical field of vehicle braking systems, and in particular, relates to a brake pedal simulator, a vehicle braking system and a vehicle. Background technique [0002] In existing vehicles, especially in electric vehicles, part of the braking system cancels the hydraulic or mechanical connection between the brake pedal and the brake of the traditional braking system, so that the driver cannot directly perceive the feedback to the brake pedal when braking. Braking reaction, thus losing the braking feel of traditional braking systems. Among them, the brake feeling refers to the comprehensive feeling including the pedal brake feeling, the vehicle brake deceleration felt by the driver, the auditory brake noise and the visual vehicle deceleration and many other factors. Among them, the pedal brake feel for the most important part. For the above-mentioned braking system, a brake pedal simulator is usually added to sim...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60T8/40B60T7/04
CPCB60T7/042B60T8/4081B60T8/409
Inventor 滕俊辉王铁君李传博刘苏丽郑祖雄
Owner BYD CO LTD
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