Abstract
Case studies are presented which describe how some of the theories in earlier Chapters can be applied to types of problems that brake and vehicle designers may encounter. The design verification of a passenger car braking system is described, and from the experimental data, an estimate of tyre/road adhesion is made. Possible reasons for changes in brake performance over time are examined in a disc brake and an S-cam drum brake. A study of sprag instability resulting from a design change to a small drum brake is described, and the importance of designing for correct clearances under all operational conditions, especially high temperature, is highlighted in a disc brake investigation. Steering drift during braking is often incorrectly attributed to side-to-side brake force variation, but a detailed study demonstrates that it can be caused by suspension and steering geometry changes during braking. The first noise, vibration, and harshness (NVH) case study describes the solution of a disc brake squeal issue, and the second demonstrates how a ventilated brake disc can be designed to reduce judder propensity. Finally, a study of a regenerative braking system design examines adhesion utilisation, braking distribution, and blending strategies for a full electric vehicle with regenerative and friction braking. The potential effect of brake blending on brake disc temperatures is investigated, and opportunities for alternative materials are discussed.
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