Invention Grant
- Patent Title: Use of filtered basis splines to compensate servo-induced motion errors
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Application No.: US15747573Application Date: 2016-07-28
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Publication No.: US10585414B2Publication Date: 2020-03-10
- Inventor: Molong Duan , Chinedum Okwudire , Keval Ramani
- Applicant: The Regents of The University of Michigan
- Applicant Address: US MI Ann Arbor
- Assignee: THE REGENTS OF THE UNIVERSITY OF MICHIGAN
- Current Assignee: THE REGENTS OF THE UNIVERSITY OF MICHIGAN
- Current Assignee Address: US MI Ann Arbor
- Agency: Harness, Dickey & Pierce, P.L.C.
- International Application: PCT/US2016/044491 WO 20160728
- International Announcement: WO2017/019869 WO 20170202
- Main IPC: G06F19/00
- IPC: G06F19/00 ; G05B19/404 ; G05B19/41

Abstract:
A method for minimizing tracking errors in dynamic systems including obtaining desired trajectory data of the dynamic system, obtaining a set of constraints on at least one of the desired and actual trajectories of the dynamic system, obtaining a set of uniform or non-uniform rational B-splines having known original B-spline basis functions but unknown B-spline coefficients, applying a trajectory optimization process to the desired trajectory data including applying forward filtering to B-spline basis functions and utilizing the original and filtered B-spline basis functions to select optimal coefficients of the B-splines, and outputting an optimal motion command signal in response to the trajectory optimization process to the dynamic system such that a resultant actual trajectory is substantially equal to the desired trajectory while satisfying the set of constraints on the at least one of the desired and actual trajectories.
Public/Granted literature
- US20180217575A1 USE OF FILTERED BASIS SPLINES TO COMPENSATE SERVO-INDUCED MOTION ERRORS Public/Granted day:2018-08-02
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