Email this article OPTIMAL CONTROLLER DESIGN FOR AN ACTIVE ANTI-ROLL BAR SYSTEM ON CARS
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Received: 26/02/20 Revised: 30/03/20 Published: 04/05/20Authors
1. Vu Van Tan
, University of Transport and Communications2. Nguyen Minh Trung, University of Transport and Communications
Abstract
Accidents caused by the vehicle rollover often lead to very serious consequences both in transport infrastructure and human life. Currently, most cars are equipped with passive anti-roll bar system, but they have the disadvantage of not providing enough stable torque in emergency situations. In this study, the authors propose an optimal LQR controller for the active anti-roll bar system on cars, by creating a torque with an actuator in the middle of the anti-roll bar connecting the two wheels at each axle. The simulation results in the time and frequency domains show the efficiency in improving the roll stability of the car with reducing body roll angle by about 70% and vertical displacement of the wheel by 35% when compared to cars using conventional passive suspension system.
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