Automobile Brake Pads Performance and Longevity Monitoring System.

Abstract

Brakes and tires are the major contributors for catastrophic failure of ground vehicles. Braking system is the utmost important besides tire to ensure the safety of users and vehicle. Ensuring good condition of brake lining is very crucial to ensure the efficiency of the braking system, where, the worn off brake lining not only endangers life but also damages the entire brake associated parts such as hub, disk, shaft, etc. It consists of a sensor. One sensor is connected with the brake shoe. The signal from the sensor is given to a micro-controller. When the brake shoe is worn out, the sensor senses signal to the micro-controller. The micro-controller analyses the signal and operates the corresponding indicator. Brake pad worn out detection sensor is mounted in the brake pad and it is connected to the Node MCU. Therefore, a critical investigation of the existing pads manufactured and their characterizations are conducted to identify the most suitable sensor spot on the brake pad. Later, a micro sensor is embedded into the pad and fully tested on a specially designed test rig. The evaluation of thickness, hardness, layer properties and critical wear region has enabled the spotting of exact sensor location. The embedment of the micro switch was successfully done and tested to be very efficient in alerting the driver upon reaching the maximum lining wear limit. Finally, when the brake pad is fully wasted then the system provides a signal the brake pad is in