Title: Application of switching traction and braking systems in longitudinal control for series–parallel hybrid electric buses
Authors: Jie Shu; Li Chen; Jian Yao; Chengliang Yin
Addresses: National laboratory for Automotive Electronic Control Technology, School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China. ' National laboratory for Automotive Electronic Control Technology, School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China. ' National laboratory for Automotive Electronic Control Technology, School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China. ' National laboratory for Automotive Electronic Control Technology, School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
Abstract: In this paper, a fuzzy adaptive control law for switching traction and braking systems to stop a hybrid electric bus is proposed. Moreover, the fuzzy adaptive controller takes the actuator constraints into account. Also, online estimation of external disturbance has been used in the design of control law for the robustness of the controller. The stability and convergence properties of the longitudinal brake controller are analytically proved by using Lyapunov stability theory and Barbalat’s lemma. The proposed algorithm is examined for platoon performance. The results of numerical simulation and processor-in-loop simulation demonstrate the control stability of trajectory tracking.
Keywords: hybrid electric buses; safety spacing; disturbance estimation; fuzzy control; adaptive control; processor-in-loop simulation; hybrid buses; traction control; braking control; bus braking; vehicle braking; platoon performance; control stability; trajectory tracking.
International Journal of Vehicle Design, 2011 Vol.56 No.1/2/3/4, pp.299 - 316
Received: 24 Dec 2009
Accepted: 07 Jul 2010
Published online: 10 Apr 2015 *