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:
Sep. 13, 2011
Filed:
Dec. 07, 2010
Masahiko Kurishige, Tokyo, JP;
Takayuki Kifuku, Tokyo, JP;
Seiji Sakanishi, Tokyo, JP;
Masaharu Tanaka, Tokyo, JP;
Seiji Sawada, Tokyo, JP;
Akinobu Sugiyama, Tokyo, JP;
Hanako Hamada, Tokyo, JP;
Masahiko Kurishige, Tokyo, JP;
Takayuki Kifuku, Tokyo, JP;
Seiji Sakanishi, Tokyo, JP;
Masaharu Tanaka, Tokyo, JP;
Seiji Sawada, Tokyo, JP;
Akinobu Sugiyama, Tokyo, JP;
Hanako Hamada, Tokyo, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
In an electric power steering control system, a phase compensator of the steering torque is made of an analog circuit and an anti-phase compensator is made by the software of a microcomputer, thereby to eliminate the changes in the gain and the phase by the phase compensator of the analog circuit near the oscillation frequency, so that the steering torque signal equivalent to that of no phase compensation necessary for the computation at the observer is computed from the phase-compensated steering torque signal.