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Abstract: A vehicle nonlinear lateral and vertical dynamics model is built under crosswind disturbance. With the L2-gain method of disturbance suppression, the nonlinear H¥ output feedback controller is designed for electrical power steering (EPS) and active suspension system (ASS) with considerations of random road input and strong crosswind disturbance. Simulations for driver-vehicle-road closed-loop system are carried out by using Matlab software. The results show that the designed controller can suppress the disturbances effectively and improve handling stability, handiness and ride characteristics of a vehicle.
Key words: Automobile Disturbance suppression Nonlinearity L2-gain Integrated control
CLC No:
O441
国家自然科学基金资助项目(50275045, 50575064). Received 20061116, received in revised form 20070726
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