Title: ABS performance evaluation taking braking, stability and steerability into account

Authors: Herman A. Hamersma; P. Schalk Els

Addresses: Department of Mechanical and Aeronautical Engineering, University of Pretoria, Private Bag X20, Hatfield 0028, South Africa ' Department of Mechanical and Aeronautical Engineering, University of Pretoria, Private Bag X20, Hatfield 0028, South Africa

Abstract: Extensive research on the design and development of antilock brake systems has been done in the past. ABS has been developed not to reduce stopping distance, but rather to stop as quickly as possible whilst maintaining some directional stability and steering control during hard braking. There is however not a single, quantifiable, scientific method in which the performances of these ABS control systems can be compared with one another that takes all the important aspects into account. This investigation proposes an evaluation technique that considers the ABS control system's exploitation of the entire friction circle. Five scenarios are investigated and the performances of two ABS algorithms are compared with one another and with a conventional brake system without ABS. The resulting technique is a clear and concise, multi-parameter comparative tool that can be used to critically compare the performance of various brake systems under the same testing conditions.

Keywords: antilock brake systems; ABS performance evaluation; braking simulations; braking tests; friction circle.

DOI: 10.1504/IJVSMT.2017.089993

International Journal of Vehicle Systems Modelling and Testing, 2017 Vol.12 No.3/4, pp.262 - 283

Received: 17 Dec 2016
Accepted: 09 Oct 2017
Published online: 26 Feb 2018 *

Full-text access for editors Full-text access for subscribers Purchase this article Comment on this article