Disk brake friction wafer attrition rate detecting system based on guide wave

Abstract

A pilot wave-based disc brake friction plate wear degree detection system in the field of testing engineering technology, comprising: an incident signal generation and amplification module, a sensor path module, a pilot wave signal receiving module, pilot wave signal processing and wave speed calculation Module, decision module, incident signal generation and amplification module is responsible for generating excitation wave, amplifying the excitation wave and transmitting it to the sensor path module, and exciting the pilot wave in the brake friction plate of the sensor path module, and transmitting the pilot wave to the guide The receiving module of the pilot wave signal, the receiver module of the pilot wave signal digitizes the pilot wave analog signal, the pilot wave signal processing and wave speed calculation module obtains the pilot wave signal characteristics and the actual propagation speed, and the decision module uses the pilot wave dispersion stored in the decision module. A database of curves and characteristics to derive the actual thickness and health of the friction lining. The invention grasps the working conditions of the brake friction plates in real time, and improves the safety of the vehicle running.

Description

technical field [0001] The invention relates to a system in the technical field of testing engineering, in particular to a system for detecting the wear degree of disc brake friction linings based on guided waves. Background technique [0002] With the rapid development of automobile manufacturing technology and the continuous improvement of people's living standards, automobiles have gradually become a common means of transportation in people's daily life. However, what follows is the problem of traffic safety. All parts of the car affect the performance and safety of the car to a certain extent. Automobile brake friction plate is one of the key components, which plays an extremely important role in the safe driving of the automobile. If the degree of wear and the existing damage of the automobile brake friction pad cannot be detected in time, it will cause a great potential threat to the driving safety of the automobile. Therefore, the wear degree of automobile brake fr...

AI Technical Summary

Problems solved by technology

The disadvantages of this invention are: 1) before the friction lining is worn to a critical level, the driver cannot grasp the current wear degree of the friction lining in real time; 2) when the friction lining is damaged (such as a crack), the system has limitations, Because damage such as cracks does not make the friction plate reach its limit thickness, but it may cause the brake friction plate to break suddenly

If these damages hidden inside the brake pads cannot be detected in time, it will affect the safety of the car.

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