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Sensors 2017, 17(1), 49; doi:10.3390/s17010049

Multi-Objective Sliding Mode Control on Vehicle Cornering Stability with Variable Gear Ratio Actuator-Based Active Front Steering Systems

1
Department of Electromechanical Engineering, University of Macau, Taipa, Macau 999078, China
2
School of Mechanical and Automotive Engineering, South China University of Technology, Guangzhou 510641, China
*
Author to whom correspondence should be addressed.
Academic Editor: Paolo Bellavista
Received: 16 November 2016 / Revised: 13 December 2016 / Accepted: 19 December 2016 / Published: 28 December 2016
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Abstract

Active front steering (AFS) is an emerging technology to improve the vehicle cornering stability by introducing an additional small steering angle to the driver’s input. This paper proposes an AFS system with a variable gear ratio steering (VGRS) actuator which is controlled by using the sliding mode control (SMC) strategy to improve the cornering stability of vehicles. In the design of an AFS system, different sensors are considered to measure the vehicle state, and the mechanism of the AFS system is also modelled in detail. Moreover, in order to improve the cornering stability of vehicles, two dependent objectives, namely sideslip angle and yaw rate, are considered together in the design of SMC strategy. By evaluating the cornering performance, Sine with Dwell and accident avoidance tests are conducted, and the simulation results indicate that the proposed SMC strategy is capable of improving the cornering stability of vehicles in practice. View Full-Text
Keywords: cornering stability; AFS system; VGRS actuator; SMC strategy cornering stability; AFS system; VGRS actuator; SMC strategy
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Ma, X.; Wong, P.K.; Zhao, J.; Xie, Z. Multi-Objective Sliding Mode Control on Vehicle Cornering Stability with Variable Gear Ratio Actuator-Based Active Front Steering Systems. Sensors 2017, 17, 49.

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