SUFFICIENT CONDITIONS ABOUT GLOBALLY ASYMPTOTICAL STABILITY OF THE ORIGIN OF SECOND-ORDER CONTROL SYSTEM WITH SATURATED INPUT
单饱和输入下二阶控制系统零解全局渐近稳定的充分条件

The phase space of control systems with saturated input is analyzed and the space structure of control systems with saturated input is presented. Equilibrium points different from Lyapunov type ones are defined and classified. Sufficient conditions are presented for globally asymptotical stability (GAS) of origin of 2 nd order control systems with saturated input. The existence of closed trajectory for 2 nd order control system with single input is also considered.