轮式移动机器人大转向航向跟踪控制

Heading-Following Control of a Wheeled Mobile Robot in Sharply Curved Roads

  • 摘要: 为了防止轮式移动机器人在大弯道路跟踪时出现过度转向而引起较大跟踪误差或偏离预定路径,提出了种能适应大转向的航向跟踪控制方法,利用机器人前轮偏角的绝对方向作为控制器反馈航向,仿真实验结果表明,该方法与以机器人车体航向作为反馈量的常规方法相比,在大转向航向跟踪时能有效志改善系统的动态特性,减少超调和振荡,提高基于航向控制的轮式移动机器人大弯道路径跟踪性能。

     

    Abstract: Heavy following error induced by excessive turning in blind bend path following control can cause a wheeled mobile robot to departures from the desired path. To prevent this problem a method for heading following control of wheeled mobile robot in blind bends is presented. The heading showed by the front steering angle is used as the feedback heading of the controller. In simulation experiments, a PID controller with front steering angle feedback is tested. Compared with the regular control method in which the feedback is the actual heading of the robot. It can markedly improve the dynamic characteristics of the control system and the performance of heading control based blind bend path following.

     

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