

FOLLOWUS
1.Division of Theory of Machines and Robots, Warsaw University of Technology, Warsaw 00-661, Poland
2.Department of Advanced Robotics, Istituto Italiano di Tecnologia, Genova 16163, Italy
3.Department of Electrical Engineering, COMSATS Institute of Information Technology, Islamabad 44000, Pakistan
4.Department of Electrical and Information Engineering, University of Cassino and Southern Lazio, Cassino 03043, Italy
‡Corresponding Author
Received:16 May 2014,
Revised:2014-12-30,
Accepted:01 October 2014,
Published:2015-02
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Khan Hamza, Iqbal Jamshed, Baizid Khelifa, et al. Longitudinal and lateral slip control of autonomous wheeled mobile robot for trajectory tracking*[J]. Frontiers of Information Technology & Electronic Engineering, 2015, 16(2): 166-172.
Khan Hamza, Iqbal Jamshed, Baizid Khelifa, et al. Longitudinal and lateral slip control of autonomous wheeled mobile robot for trajectory tracking*[J]. Frontiers of Information Technology & Electronic Engineering, 2015, 16(2): 166-172. DOI: 10.1631/FITEE.1400183.
目的
2
轮式机器人广泛应用于自主移动机器人研究。已有文献大多数将机器人抽象成具备非完整约束的机械模型,这一假设条件仅在机器人低速运动时成立。本文考虑四轮机器人,同时考虑其纵向和侧向滑动控制,与实际情况更贴近。
创新
2
针对轮式移动机器人模型,同时考虑纵向和侧向滑动分量。
方法
2
设计纵向滑行控制策略(图1)。改变自然频率(图4)、阻尼和质量(图5)、轮子半径(图6)分别测试控制器响应,最终获取最优控制参数(表2)。
结论
2
仿真结果验证所提控制策略的有效性。通过测试选择合适参数使控制器实现快速平滑响应。所设计的控制器对轮子滑动扰动不作限制性假设,即可实现误差指数收敛。
This research formulates a path-following control problem subjected to wheel slippage and skid and solves it using a logic-based control scheme for a wheeled mobile robot (WMR). The novelty of the proposed scheme lies in its methodology that considers both longitudinal and lateral slip components. Based on the derived slip model
the controller for longitudinal motion slip has been synthesized. Various control parameters have been studied to investigate their effects on the performance of the controller resulting in selection of their optimum values. The designed controller for lateral slip or skid is based on the proposed side friction model and skid check condition. Considering a car-like WMR
simulation results demonstrate the effectiveness of the proposed control scheme. The robot successfully followed the desired circular trajectory in the presence of wheel slippage and skid. This research finds its potential in various applications involving WMR navigation and control.
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