ANALYSIS OF THE BRAKE CALIPER POSITIONING IN VEHICLES

Abstract

This paper aims to analyze the positioning of the brake caliper on vehicles, considering the most common situations, namely in front of or behind the brake disc. The positioning of the brake caliper on cars depends on the design and configuration of the brake system specific to each vehicle model. This positioning is determined by the engineers and designers responsible for the vehicle's safety, considering factors such as chassis geometry, weight distribution, desired braking performance, and other relevant technical factors. Generally, the brake caliper is located near the brake disc so that it can apply the necessary pressure to efficiently stop the wheels. Typically, in the case of disc brake systems, the brake caliper is positioned in front of the wheel, near the brake disc. There are cases where the positioning is behind the disc. Starting from this controversy, we considered it opportune to analyze the two cases on a stand that replicates the brake system. Thus, the two situations were analyzed using pressures of 2, 4, and 6 bars in the brake pipe. The variations in brake disc temperatures and braking distances were determined for each case to conclude the positioning of the caliper. The decision regarding the placement of the brake caliper in front of or behind the wheel is made by the vehicle manufacturer based on technical specifications and the desired performance of the brake system.