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Comfort Control of Active Suspension Based on State Feedback

To address the problem of the existing vehicle active suspension control methods greatly influenced by external disturbance and model precision, an active suspension controller based on feedback control for half-vehicle model is proposed to improve the vehicle ride comfort. In this paper, the system of dynamic deflection is established for the decoupling control regarded as virtual control, then the feedback controller with simple structure and strong anti-interference ability is designed to achieve the best ride comfort. Finally, the road input simulation shows that under the action of the controller proposed in this paper, the root mean square value of the vertical acceleration of the center of car’s mass is reduced by 33.195%, and the vibration displacement of the vehicle body is greatly reduced, the ride comfort of the vehicle is improved.