基于Backstepping方法的液压主动悬挂最优控制及仿真

Optimal Control and Simulation of Hydraulic Active Suspensions Based on Backstepping

建立了充分考虑液压装置动力学特性的1/4车辆非线性主动悬挂模型,并提出线性二次型指标下最优控制与非线性Backstepping技术相结合的内外环控制设计策略。仿真结果表明,运用所设计的控制器,车辆能够在变化的地形条件下满足操作稳定性,同时能够有效的改善乘坐舒适性。

The hydraulic active suspension control design based on quarter car model considering the dynamics of the hydraulic actuator was addressed, which uses a combination of optimal control and nonlinear backstepping techniques, The simulation results show that the car has safe maneuverability and well passenger comfort in different road conditions by using the proposed controller.