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Friction disc clearance automatic compensation control method, system and vehicle for preventing brake failure

A technology of automatic compensation and control method, which is applied to the components of brakes, brake types, brake actuators, etc., can solve the problem of not being able to solve the problem of brake caliper piston retraction, etc., to ensure braking safety, avoid panic, reduce The effect of security incidents

Active Publication Date: 2022-07-22
BAIC MOTOR CORP LTD
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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 is used, but this solution cannot solve the phenomenon of the brake caliper piston retreating after the brake caliper is subjected to severe bumps

Method used

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  • Friction disc clearance automatic compensation control method, system and vehicle for preventing brake failure
  • Friction disc clearance automatic compensation control method, system and vehicle for preventing brake failure
  • Friction disc clearance automatic compensation control method, system and vehicle for preventing brake failure

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Embodiment Construction

[0070] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present invention, but not to limit the present invention.

[0071] figure 1 This is the flow chart of the automatic compensation control method for the friction plate gap for preventing brake failure provided by the first embodiment of the present invention. like 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 you can directly use the wheel speed data obtained by the Type II tire pressure monitoring system ITPMS in the vehicle ESC system. Different wheel speed data acquisition methods meet different configurations. demand for vehicles. Among them, the ESC system, the full name of the automotive electronic stability control ...

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Abstract

The invention provides a friction plate gap automatic compensation control method and system for preventing brake failure, belonging to the field of vehicle braking. The method includes: acquiring wheel speed data; identifying the current driving condition of the vehicle according to the wheel speed data; pressurizing the brake caliper piston according to the driving condition, and pushing the brake caliper piston to reset. The system includes: a wheel speed acquisition unit for acquiring wheel speed data of the vehicle; a working condition identification unit for identifying the current driving condition of the vehicle according to the wheel speed data; and a friction disc clearance compensation unit for according to the driving condition The working conditions pressurize the brake caliper piston, pushing the brake caliper piston to reset. According to the wheel speed data, the invention identifies the working conditions that will cause the caliper piston to retreat, and periodically pressurizes the brake caliper piston to compensate for the gap between the friction discs, so as to ensure that the brake caliper is in a normal position or a position conducive to emergency braking. Ensure vehicle safety and avoid panicking the driver.

Description

technical field [0001] The invention relates to the field of vehicle braking, in particular to a friction plate gap automatic compensation control method for preventing brake failure and a friction plate gap automatic compensation control system for preventing brake failure. Background technique [0002] According to market feedback and test verification, when the vehicle is driven on some bumpy roads, large twisted roads, dimpled roads, high-speed cornering and other conditions, the brake caliper may experience the brake caliper piston retraction after severe bumps. As a result, when the driver brakes for the first time, he can feel a period of braking idling, or even one foot in the end without braking, which causes great panic to the driver, and even directly leads to the occurrence of a traffic accident. [0003] The invention patent with the application number of 201910782157.7 discloses a structure and method for reducing the drag torque of automobile brake calipers. T...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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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