Studies of the Dynamics of Temperature Change in Brake Disc Passenger Car During Emergency Braking

Abstract

The results of temperature measurements in the brake disc of a passenger car within the speed range of the emergency braking (40…120 km/h) are given in the article. The temperature measurements were made at the entrance, mid-range and exit of the disc from the brake lining in the direction of rolling. The diagrams of the temperature changes which depend upon braking time and running speed are presented. It is shown that maximum temperature values are in the area of disc exit from the brake lining during the rolling. The analytical dependences of the disc heating temperature upon the speed at the beginning of the braking operation are obtained.