Title: The influences of worn shock absorber on ABS braking performance on rough road

Authors: Hakan Koylu; Ali Cinar

Addresses: Department of Automotive Engineering Technology, Kocaeli University, TR-41380 Izmit, Turkey. ' Department of Automotive Engineering Technology, Kocaeli University, TR-41380 Izmit, Turkey

Abstract: In this study, the influence of the deteriorations occurring in damping capacity of the shock absorber on the braking performance of Anti-Lock Brake System (ABS) was experimentally investigated. For this, ABS tests were conducted on the rough road, which has µ-split and slippery surface by using worn and new shock absorbers. The results show that when ABS is activated, the brake pressure fluctuations are affected by the changes in shock absorber damping capacity. Accordingly, it is determined that the braking performance is deteriorated by both road surfaces with worn shock absorbers. The µ-split rough road condition with new shock absorber improves braking performance, whereas the slippery road condition makes this braking performance much worse.

Keywords: anti-lock braking systems; vehicle suspension; worn shock absorbers; rough roads; vehicle braking; ABS braking performance; damping capacity; brake pressure fluctuations; road surfaces; vehicle design.

DOI: 10.1504/IJVD.2011.043598

International Journal of Vehicle Design, 2011 Vol.57 No.1, pp.84 - 101

Received: 13 Apr 2010
Accepted: 11 Apr 2011
Published online: 15 Apr 2015 *

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