The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 13, 2007
Filed:
Apr. 05, 2004
Koji Yoneda, Kanagawa, JP;
Koji Yoneda, Kanagawa, JP;
Sodick Co., Ltd., Kanagawa, JP;
Sodick America Corporation, San Jose, CA (US);
Abstract
A position control device for causing a position of a control system, including a servomotor and a moving body driven by the servomotor, to track a command value. The position control device includes a sliding mode controller for receiving command position r and state variable x of the control system and for providing a control input u to the servomotor. State variable x is expressed as follows: where θ is feedback position and {dot over (θ)} is feedback velocity. The position control device also includes a disturbance variable compensator for compensating control input u based on feedback velocity {dot over (θ)}.