화학공학소재연구정보센터
Automatica, Vol.30, No.11, 1761-1768, 1994
Robust Decoupling, Ideal Steering Dynamics and Yaw Stabilization of 4Ws Cars
Four-wheel car steering is modeled by a single-track model with nonlinear tire characteristics. A generic control law for robust decoupling of lateral and yaw motion by yaw-rate feedback to front-wheel steering is derived. Ideal steering dynamics are achieved by velocity-scheduled lateral acceleration feedback to front-wheel steering. For robust yaw stabilization a velocity-scheduled yaw-rate feedback to rear-wheel steering is given, by which the linearized system gets velocity-independent yaw eigenvalues.