汽车转向的力输入控制与角输入控制及其对驾驶员-汽车闭环系统的影响  

Force Control,Position Control and Their Effects on Driver-Vehicle Closed-Loop System

作　　者：郭孔辉[1] 朱宏巍[2] 

机构地区：[1]吉林工业大学,长春市130025 [2]吉林工业大学汽车动态模拟国家重点实验室,长春市130025

出　　处：《中国机械工程》1997年第1期39-42,共4页China Mechanical Engineering

基　　金：福特-中国研究与发展基金

摘　　要：讨论两种与不同驾驶员转向控制策略相应的人－车闭环系统的运动特征。在描述驾驶员操纵汽车转向时可以认为驾驶员有两种操纵方式，即通过给转向盘施加转向力矩或通过使转向盘转过一定角度来实施其转向策略，分别称这两种控制方式为力输入控制与角输入控制。仿真计算表明，当不足转向度小的汽车高速行驶时．驾驶员采用力输入控制策略具有更小的跟随误差。在力输入控制下，驾驶员校正参数的变化范围也比采用角输入控制策略的小得多。这说明力输入控制对车况的改变比角输入控制具有更好的适应性。Motion feature of driver-vehicle closed-loop directional control system with two kinds of vehicle controodels which describe different driving strategies, is discussed in this paper:force control model where steering torque is considered as the steering input and position control model where steering wheel displacement is considered as the steering input. The characteristics of the driver/vehlcle systems of these two control strategies are compared,and the effects of force control and position control on the driveruvehlcle closed loop system are analyzed by means of simulatiOn. The results show that, in view of the closed-loop comPrehensive evaluation, force control has considerable superlority to positiOn control, especially for less understeer vehicles at high vehicle speed. In addition. The force control system shows better tracking acctlracy and more driving consistency than the posltioll control system when vehicle condition (steering characteristics) varied.

关 键 词：汽车操纵性 驾驶员模型 汽车闭环系统 

分 类 号：U467[机械工程—车辆工程]