中国机械工程 ›› 2007, Vol. 18 ›› Issue (21): 2628-2632.

• 机械基础工程 • 上一篇    下一篇

汽车最速操纵问题的逆动力学研究

张丽霞1;赵又群1;宋桂霞1;吴杰2   

  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2007-11-10 发布日期:2007-11-10

Research on Inverse Dynamics of Vehicle Minimum Time Maneuver Problem

Zhang Lixia1;Zhao Youqun1;Song Guixia1;Wu Jie2   

  • Received:1900-01-01 Revised:1900-01-01 Online:2007-11-10 Published:2007-11-10

摘要:

提出了一种汽车操纵逆动力学仿真研究方法。基于最优控制理论,以驾驶员对汽车施加的转角输入和驱动力/制动力为控制变量,以最短时间完成双移线过程为控制目标,通过改进的直接多重打靶方法将最优控制问题转化为非线性规划问题之后,运用序列二次规划方法求解。仿真结果表明,该方法能够解决汽车的最速操纵问题,可以比较不同汽车以最短时间完成双移线过程的操纵性能,且计算结果与ADAMS/Car虚拟样机试验结果具有良好的一致性。

关键词: 逆动力学, 最速操纵, 最优控制, 仿真

Abstract:

A simulation research method for vehicle handling inverse dynamics was proposed. Based on optimal control theory, the steering angle input and the traction/brake force imposed by driver were the control variables, the minimum time required to complete the double lane change was the control object. By using the improved direct multiple shooting method , the optimal control problem was converted into a nonlinear programming problem that was then solved by means of the sequential quadratic programming. The simulation results show that the proposed method can solve the vehicle minimum time maneuver problem,can compare the maneuverability of two different vehicles that complete double lane change with the minimum time and the results fit that of ADAMS/Car virtual experiment.

Key words: inverse dynamics, minimum time maneuver, optimal control, simulation

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