Journal of Computer Science | |
Wheeled Mobile Robot Trajectory Tracking using Sliding Mode Control | Science Publications | |
Azza El-Sayed Bayoumi Ibrahim1  | |
关键词: Mobile Robot Kinematics and Dynamics; Sliding Mode Control; Trajectory-Tracking; | |
DOI : 10.3844/jcssp.2016.48.55 | |
学科分类:计算机科学(综合) | |
来源: Science Publications | |
【 摘 要 】
This paper introduces and discusses a control strategy for nonholonomic wheeled mobile robots. The models of the robots include the kinematic and dynamic equations of motion. Trajectory tracking control problem of parallel wheeled differential drive mobile robot is considered, where the robot should reach the final position by following a referenced trajectory for different initial conditions. A motion control strategy for a mobile robot by only assuming the kinematic model was developed by many researchers. In the case of high-speed robot motion, the dynamical model is important. In this study, two stages of the proposed control strategy are presented. The first one is dealing with the kinematics of the system and denoted as ‘steering’ controller. The second one, a velocity controller is developed based on the robust sliding mode control technique. A new design of the sliding surface is proposed. The switching feedback gain is determined based on a novel mathematical simple rule, considering the initial state of the system. Robustness to parameters uncertainties and stability of the controlled system are achieved. A simulation model of the controlled system is developed in MATLAB-SIMULINK software. Simulation results show the performances of the developed controller. In the case of presence of uncertainties, the results show the superiority of the proposed controller compared with the computed torque method.
【 授权许可】
Unknown
【 预 览 】
Files | Size | Format | View |
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RO201911300851772ZK.pdf | 553KB | download |