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Auxiliary braking method and device for vehicle

A technology of auxiliary braking and electronic parking brake, applied in the field of vehicle control, can solve problems such as failure of rear pipeline failure, leakage of pressure relief of braking system, failure of vacuum seal of booster system, etc.

Active Publication Date: 2021-12-17
GREAT WALL MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, when the performance of the braking system is degraded or fails, such as pressure release and leakage of the braking system, failure of the vacuum seal of the booster system, failure of the oil leakage of the booster system, and failure of the rear pipeline, the current vehicle cannot identify the relevant performance degradation in time. , and cannot take corresponding actions in a timely and effective manner, endangering the personal safety of the driver and passengers in the vehicle

Method used

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  • Auxiliary braking method and device for vehicle
  • Auxiliary braking method and device for vehicle
  • Auxiliary braking method and device for vehicle

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Embodiment Construction

[0031] It should be noted that, in the case of no conflict, the embodiments and features in the embodiments of the present invention can be combined with each other.

[0032] The present invention will be described in detail below with reference to the drawings and in combination with embodiments.

[0033] figure 1 It is a flowchart of an auxiliary braking method for a vehicle provided by an embodiment of the present invention. Such as figure 1 As shown, the method includes:

[0034] Step S11, detecting the pressure built up by the brake master cylinder of the vehicle in real time;

[0035] Specifically, the master cylinder pressure sensor can be used to detect in real time the magnitude of the pressure built up by the brake master cylinder.

[0036] Step S12, detecting the liquid level of the brake fluid storage pot in real time;

[0037] Specifically, the fluid level of the brake fluid reservoir can be detected in real time by using the displacement sensor of the fluid ...

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Abstract

The invention relates to the technical field of vehicle control, and provides a vehicle auxiliary braking method and device. The method includes: detecting the pressure built up by the brake master cylinder of the vehicle in real time; detecting the liquid level of the brake fluid reservoir in real time; and detecting the displacement of the brake pedal when the brake pedal of the vehicle is stepped on ; Control the electronic stability system or electronic parking brake system of the vehicle to perform Auxiliary braking. The invention can control the auxiliary braking in time when the performance of the braking system decreases or fails, so as to ensure the safe running of the vehicle.

Description

technical field [0001] The invention relates to the technical field of vehicle control, in particular to a vehicle auxiliary braking method and device. Background technique [0002] For the safety of the vehicle, especially the safety of the braking system is particularly important. At present, when the performance of the braking system is degraded or fails, such as pressure release and leakage of the braking system, failure of the vacuum seal of the booster system, failure of the oil leakage of the booster system, and failure of the rear pipeline, the current vehicle cannot identify the relevant performance degradation in time. , and cannot take corresponding actions in a timely and effective manner, endangering the personal safety of the driver and passengers in the car. Contents of the invention [0003] In view of this, the present invention aims to propose an auxiliary braking method for a vehicle, so as to timely control the auxiliary braking when the performance of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60T17/22
CPCB60T17/22B60T2201/03
Inventor 李熙石仲伟马路路孟祥禄郝之凯邢东伟陈聪陈美健孙玉徐波张英富吕文斌王雷
Owner GREAT WALL MOTOR CO LTD