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Appl. Sci. 2017, 7(10), 1055; https://doi.org/10.3390/app7101055

A Novel Adaptive PID Controller with Application to Vibration Control of a Semi-Active Vehicle Seat Suspension

1
MediRobotics Laboratory, Department of Mechatronics and Sensor System Technology, Vietnamese-German University, 820000 Binh Duong, Vietnam
2
Smart Structures and Systems Laboratory, Department of Mechanical Engineering, Inha University, Incheon 402-751, Korea
*
Author to whom correspondence should be addressed.
Received: 14 September 2017 / Accepted: 9 October 2017 / Published: 13 October 2017
(This article belongs to the Section Mechanical Engineering)
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Abstract

This work proposes a novel adaptive hybrid controller based on the sliding mode controller and H-infinity control technique, and its effectiveness is verified by implementing it in vibration control of a vehicle seat suspension featuring a magneto-rheological damper. As a first step, a sliding surface of the sliding mode controller is established and used as a bridge to formulate the proposed controller. In this process, two matrices such as Hurwitz constants matrix are used as components of the sliding surface and H-infinity technique are adopted to achieve robust stability. Secondly, a fuzzy logic model based on the interval type 2 fuzzy model which is featured by online clustering is established and integrated to take account for external disturbances. Subsequently, a new adaptive hybrid controller is formulated with a solid proof of the robust stability. Then, the effectiveness is demonstrated by implementing the proposed hybrid controller on the vibration control of a vehicle seat suspension associated with a controllable damper. Vibration control performances are evaluated on bump and random road profiles by presenting both displacement and acceleration on the seat and the driver positions. In addition, a comparative study between the proposed and one of existing controllers is undertaken to highlight some benefits of the hybrid adaptive controller developed in this work. View Full-Text
Keywords: hybrid controller; H-infinity control; interval type 2 fuzzy control; sliding mode control; vibration control; magneto-rheological (MR) damper hybrid controller; H-infinity control; interval type 2 fuzzy control; sliding mode control; vibration control; magneto-rheological (MR) damper
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
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Phu, D.X.; An, J.-H.; Choi, S.-B. A Novel Adaptive PID Controller with Application to Vibration Control of a Semi-Active Vehicle Seat Suspension. Appl. Sci. 2017, 7, 1055.

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