Authors: Yunhyoung Hwang; Seibum B. Choi
Addresses: Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology, 291 Daehak-ro, Daejeon 305-701, Korea ' Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology, 291 Daehak-ro, Daejeon 305-701, Korea
Abstract: This paper suggests an adaptation scheme for robust control of Electronic Wedge Brake (EWB) and estimation of pad friction-coefficient. The Electronic Wedge Brake is highly energy-effective as it uses self-reinforcement. But accordingly, it can be sensitive to the parametric variation, particularly to the pad friction-coefficient. The suggested scheme reduces the effect of the variation of pad friction-coefficient on system robustness and provides a way of estimation of the friction-coefficient in real time. The series of simulation results verify the performance of suggested control scheme.
Keywords: EWB; electronic wedge brake; brake-by-wire; adaptive SMC; sliding mode control; pad friction coefficient; braking control; vehicle control; vehicle dynamics; robust control; pad friction estimation; simulation.
International Journal of Vehicle Design, 2013 Vol.62 No.2/3/4, pp.165 - 187
Accepted: 19 Nov 2011
Published online: 18 Mar 2013 *