Determination of the Quantity of Particles Emitted to the Environment as a Result of Wearing Car Brake Pads

Abstract This article presents methods for determining the amount of particles released into the environment as a result of the wear of brake linings during car braking, taking into account the adhesion coefficient of the wheel with the road. Considering that the resource period of the brake pads of cars changes depending on the adhesion coefficient of the wheel with the road, the amount of particles emitted into the atmosphere was calculated theoretically. The analysis of the distribution of the concentration of metals in the particles formed from wearing brake linings during the braking process of cars is widely covered. It was found that the samples taken during the braking of a car contained high amounts of metal elements such as iron, copper, zinc, chromium, tin and antimony. Currently, there is information about the negative impact of the particles that form during the braking of cars on the environment. A comparative analysis of the theoretical and experimental results of the wear rate of brake linings depending on the road adhesion coefficient is presented. According to the comparative analysis of the theoretical calculation results of the average wear speed of car brake pads depending on the road adhesion coefficient, the change in the wear speed depending on the adhesion coefficient has been confirmed.

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