Method for detecting friction plate abrasion of electronic parking braking system

Abstract

The invention discloses a method for detecting friction plate abrasion of an electronic parking braking system. The method comprises the following detection steps: 1, braking a vehicle by the electric parking braking system, and controlling an execution mechanism to clamp friction plates; 2, detecting the variable quantities of the voltage, current and time in a clamping process of the execution mechanism by a vehicle-mounted electronic control unit 6 (ECU); and 3, acquiring the abrasion loss of the detected friction plate through logically judging the acquired variable quantities by the vehicle-mounted electronic control unit 6 (ECU). When the method is used, the technical problem of complex structure, difficult large-scale and high-efficiency production and manufacturing, high manufacturing cost, incapability of adapting to large-scale improvement on the conventional vehicles, in accurate friction plate detection structure and the like of the conventional technical scheme are solved; simultaneously, the degree of the friction plate abrasion is measured accurately and timely; the conventional vehicles are modified conveniently and easily; and the degree of massive assembly line work is high.

Description

technical field [0001] The invention belongs to the technical field of manufacturing an electronic parking brake system of a motor vehicle, in particular, the invention relates to a detection method for wear of a friction plate of an electronic parking brake system. Background technique [0002] In the field of motor vehicle braking system manufacturing technology, the electronic parking brake system is widely used in various vehicles. As an important auxiliary system on motor vehicles, it has the function of providing parking braking force and auxiliary braking. . The friction plate in the electronic parking brake system is one of the most critical components for the safe driving of a car. The wear of the friction plate is directly related to the reliability of the vehicle’s braking. It is particularly important to know the wear of the friction plate in time. In addition to being 100% safe, drivers and passengers expect to know how their friction linings are wearing at all...

AI Technical Summary

Problems solved by technology

[0009] The technical problem to be solved by the technical solution provided by the present invention is that the structure of the existing technical solution is complicated, and it is not easy to produce large-scale and high-efficiency manufacturing; the manufacturing cost is high; it cannot adapt to the large-scale improvement of existing models; Accuracy and other technical problems, and provide a simple structure, low manufacturing cost, easy to improve the existing vehicle models, the detection of the friction plate is accurate to the electronic parking brake system friction wear detection method

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