Title: Integrated AFS/DYC sliding mode controller for a hybrid electric vehicle

Authors: Behrooz Mashadi; Majid Majidi

Addresses: Department of Automotive Engineering, Iran University of Science and Technology, Narmak, Farjam Street, Tehran 16846-13114, Iran. ' Department of Automotive Engineering, Iran University of Science and Technology, Narmak, Farjam Street, Tehran 16846-13114, Iran

Abstract: A multi-layer integrated controller of active front steering and direct yaw moment is developed in this study. In the upper layer, the corrective steering angle and yaw moment are obtained using Sliding Mode Control (SMC) with combined sliding surface. The corrective yaw moments are applied by electric motors embedded in rear wheels. The desired value for yaw rate and sideslip angle are obtained from a Four-Degrees of Freedom (DOF) non-linear vehicle model. In the lower layer, wheel slip and electric motor torque controllers are designed. A 9-DOF non-linear vehicle model is used for simulations and their results illustrate considerable improvements in vehicle handling.

Keywords: vehicle dynamics; vehicle stability control; SMC; sliding mode control; active front steering; direct yaw moment; hybrid electric vehicles; HEVs; vehicle models; nonlinear modelling; vehicle handling.

DOI: 10.1504/IJVD.2011.043268

International Journal of Vehicle Design, 2011 Vol.56 No.1/2/3/4, pp.246 - 269

Received: 19 Dec 2009
Accepted: 30 Oct 2010

Published online: 10 Apr 2015 *

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