前馈加反馈的转向控制对车辆操纵特性影响研究与仿真

摘要

提出了对汽车前轮转向控制采用预设传动比、后轮采用前轮转角比例前馈加横摆角速度比例反馈的控制策略对转向系统进行控制，并利用Simulink软件构建被控系统的仿真模型。其仿真结果表明：该控制策略基本有效，能够很好地实现稳态侧偏角为零，但增加了汽车从瞬态到稳态之间的振荡过程。为汽车的转向控制提供了参考。%This paper proposes a control strategy for the steering system that the front wheels steering control strategy was preset-transmission ratio,and the rear is front wheel angle proportional feedforward and yaw angular velocity propor-tional feedback.This paper establishes the simulation model of the controlled system with simulink software.The simula-tion results show that the control strategy is effective,it can realize steady sideslip angle to zero,but increase the oscillation process from transient state to steady state.The control strategy provides a reference for vehicle steering control.