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:
Dec. 07, 2010
Filed:
Dec. 12, 2007
Yoshitaka Iwaji, Hitachinaka, JP;
Junnosuke Nakatsugawa, Hitachi, JP;
Yasuhiko Kokami, Takasaki, JP;
Minoru Kurosawa, Yoshii, JP;
Yoshitaka Iwaji, Hitachinaka, JP;
Junnosuke Nakatsugawa, Hitachi, JP;
Yasuhiko Kokami, Takasaki, JP;
Minoru Kurosawa, Yoshii, JP;
Renesas Technology Corporation, Tokyo, JP;
Abstract
Control technique of a synchronous motor capable of suppressing rotation pulsation caused by individual difference without complicating control algorithm is provided. A pulsation generator superimposing a pulsation component anticipated in advance to a current command for the synchronous motor and a correction current generator superimposing a correction signal substantially having an average value of zero to the current command are provided in a synchronous motor control device. By this configuration, the correction signal suppressing a distortion component is superimposed to a value of the current command with a simplified control configuration. Torque pulsation is suppressed by determining the correction signal from difference between a detection current and a command current.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile