eprintid: 496 rev_number: 10 eprint_status: archive userid: 7 dir: disk0/00/00/04/96 datestamp: 2011-07-27 09:16:44 lastmod: 2014-07-16 14:19:56 status_changed: 2011-07-27 09:16:44 type: article metadata_visibility: show item_issues_count: 0 creators_name: Bemporad, Alberto creators_name: Tarn, Tzyh-Jong creators_name: Xi, Ning creators_id: alberto.bemporad@imtlucca.it creators_id: creators_id: title: Predictive path parameterization for constrained robot control ispublished: pub subjects: QA subjects: QA75 divisions: CSA full_text_status: none keywords: Acceleration; Error correction; Feedback; Motion control; Motion planning; Robot control; Robot motion; Torque; Trajectory; Voltage abstract: For robotic systems tracking a given geometric path, the paper addresses the problem of satisfying input and state constraints. According to a prediction of the evolution of the robot from the current state, a discrete-time device called a path governor generates online a suitable time-parameterization of the path to be tracked, by solving at fixed intervals a constrained scalar look-ahead optimization problem. Higher level switching commands are also taken into account by simply associating a different optimization criterion to each mode of operation. Experimental results are reported for a three-degree-of-freedom PUMA 560 manipulator subject to absolute position error, Cartesian velocity, and motor voltage constraints date: 1999-11 date_type: published publication: IEEE Transactions on Control Systems Technology volume: 7 number: 6 publisher: IEEE pagerange: 648-656 id_number: 10.1109/87.799665 refereed: TRUE issn: 1063-6536 official_url: http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=799665&isnumber=17379 citation: Bemporad, Alberto and Tarn, Tzyh-Jong and Xi, Ning Predictive path parameterization for constrained robot control. IEEE Transactions on Control Systems Technology, 7 (6). pp. 648-656. ISSN 1063-6536 (1999)