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Sliding mode control for steer-by-wire systems with AC motors in road vehicles

Wang, H.ORCID: 0000-0003-2789-9530, Kong, H., Man, Z., Do, M.T., Cao, Z. and Shen, W. (2014) Sliding mode control for steer-by-wire systems with AC motors in road vehicles. IEEE Transactions on Industrial Electronics, 61 (3). pp. 1596-1611.

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In this paper, the modeling of steer-by-wire (SbW) systems is further studied, and a sliding mode control scheme for the SbW systems with uncertain dynamics is developed. It is shown that an SbW system, from the steering motor to the steered front wheels, is equivalent to a second-order system. A sliding mode controller can then be designed based on the bound information of uncertain system parameters, uncertain self-aligning torque, and uncertain torque pulsation disturbances, in the sense that not only the strong robustness with respect to large and nonlinear system uncertainties can be obtained but also the front-wheel steering angle can converge to the handwheel reference angle asymptotically. Both the simulation and experimental results are presented in support of the excellent performance and effectiveness of the proposed scheme.

Item Type: Journal Article
Publisher: IEEE
Copyright: © 2013 IEEE
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