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Brake Squeal Prevention through Suspension Design and Adaptive Suspension

Journal Article
ISSN: 2380-2162, e-ISSN: 2380-2170
Published September 03, 2019 by SAE International in United States
Brake Squeal Prevention through Suspension Design and Adaptive Suspension
Citation: Saxena, S. and Dutt, J., "Brake Squeal Prevention through Suspension Design and Adaptive Suspension," SAE Int. J. Veh. Dyn., Stab., and NVH 3(3):153-163, 2019,
Language: English


The brake squeal phenomenon has bothered automobile manufacturers for a long time. Although having no ill effects on the braking performance, the squeaky noise is often a nuisance and one of the major complaints of many customers. In order to design quality and noise-free automobiles, the brake squeal issue has to be permanently tackled. Many researchers have suggested shape optimization and additional damping of the disk as brake squeal control measures. Other methods proposed in the literature include the use of a different brake pad material or an anti-squeal paste. However, the effect of the type of brake pad suspension on brake squeal has not been studied. In this article, we demonstrate that the use of a 4-element viscoelastic support can prevent brake squeal for a vehicle speed of 5-200 kmph, which is the practical vehicle speed range. For a 2-element support, we have identified a suitable control parameter and proposed an efficient active control for squeal prevention based on that. A nondimensional analysis has been carried out so as to ensure that the results are applicable for any system.