Brake failure-preventing automatic compensation control method and system for friction plate gap and vehicle

A technology of automatic compensation and control method, which is applied in the direction of brake components, brake types, brake actuators, etc., and can solve problems such as the retreat of brake caliper pistons that cannot be solved

Active Publication Date: 2021-02-02
BAIC MOTOR CORP LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The above-mentioned solution in the prior art is mainly to solve the problem of retreating of the brake caliper piston after the brake pedal

Method used

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  • Brake failure-preventing automatic compensation control method and system for friction plate gap and vehicle
  • Brake failure-preventing automatic compensation control method and system for friction plate gap and vehicle
  • Brake failure-preventing automatic compensation control method and system for friction plate gap and vehicle

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Embodiment Construction

[0070] Specific embodiments of the present invention 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 invention, and are not intended to limit the present invention.

[0071] figure 1 It is a flow chart of the friction disc gap automatic compensation control method for preventing brake failure provided by the first embodiment of the present invention. Such as figure 1 As shown, the method includes:

[0072] S1: To obtain wheel speed data, you can collect wheel speed data by setting the wheel speed sensor, or directly use the wheel speed data obtained by the type II tire pressure monitoring system ITPMS in the on-board ESC system. Different wheel speed data acquisition methods meet different configurations vehicle needs. Among them, the ESC system, the full name of the automotive electronic stability control system, that is...

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Abstract

The invention provides a brake failure-preventing automatic compensation control method and system for a friction plate gap and a vehicle and belongs to the field of vehicle braking. The method comprises the steps of acquiring wheel speed data; recognizing a current traveling working condition of the vehicle according to the wheel speed data; and pressurizing a piston of a clamp of the brake according to the travelling working condition and pushing the piston of the clamp of the brake to reset. The system comprises a wheel speed acquisition unit for acquiring the wheel speed data, a working condition recognition unit for recognizing the current traveling working condition of the vehicle according to the wheel speed data and a friction plate gap compensation unit for pressurizing the pistonof the clamp of the brake according to the travelling working condition and pushing the piston of the clamp of the brake to reset. The working condition that the piston of the clamp retreats is recognized according to the wheel speed data and the piston of the clamp is pressurized periodically for friction plate gap compensation, so that it is ensured that the braking clamp is in a normal position or a position beneficial to emergency brake, the safety of the vehicle is ensured and panic of a driver is prevented.

Description

technical field [0001] The invention relates to the field of vehicle braking, in particular to a method for automatically compensating and controlling friction disc gaps to prevent brake failure and an automatic compensation control system for friction disc gaps to prevent brake failure. Background technique [0002] According to market feedback and test verification, when the vehicle is driving on certain bumpy roads, heavily twisted roads, pitted roads, high-speed cornering, etc., the brake caliper piston may retreat after being subjected to severe bumps. Causing the driver to feel a section of braking empty travel when the first foot brakes, or even one foot to the bottom without braking, which causes great panic to the driver, and even directly leads to the occurrence of traffic accidents. [0003] The invention patent with the application number of 201910782157.7 discloses a structure and method for reducing the drag torque of the automobile brake caliper. The scheme di...

Claims

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Application Information

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IPC IPC(8): F16D65/14F16D65/38F16D121/04
CPCF16D65/14F16D65/38F16D2065/386F16D2121/04
Inventor 孙仁杰洪庆良郝贺于海兴杨争科刘明月
Owner BAIC MOTOR CORP LTD
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