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:
May. 15, 2012
Filed:
Jun. 03, 2008
Hiroshi Suzuki, Okazaki, JP;
Hiroshi Suzuki, Okazaki, JP;
JTEKT Corporation, Osaka-shi, JP;
Abstract
A microcomputer(signal generating section) includes an attenuating section, which attenuates a specific frequency component included in an input signal. The attenuating sectionreceives a d-axis current value Id and a q-axis current value Iq, which are actual currents supplied to a motor. The attenuating sectionreceives a rotational angular velocity ωe of the motor. The attenuating sectionchanges the specific frequency component to be attenuated based on the input rotational angular velocity ωe. Then, the microcomputerexecutes current feedback control for feeding power to the motorbased on the d-axis current value Id' and the q-axis current value Iq′ that have been attenuated.