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:
Jul. 22, 2014
Filed:
Feb. 16, 2012
Hiroshi Kitamoto, Toyota, JP;
Hiroshi Kitamoto, Toyota, JP;
JTEKT Corporation, Osaka-Shi, JP;
Abstract
The electrical power steering apparatusincludes the 1MOS-FETand the 2MOS-FETaccommodating the 1parasitic diodeand the 2parasitic diodein the conducting path between the batteryand the motor driving circuitand being connected in series at the opposite direction respectively, and the condenserin an output side of the latter 2MOS-FET. The ECUof the controller of the electrical power steering apparatus controls to turn on or off the 1MOS-FETand the 2MOS-FETin accordance with the predetermined sequence after the ignition switchis turned on, detecting the fault of the 1MOS-FET, the 2MOS-FETand the 1parasitic diodeand the 2parasitic diodeon the basis of the output voltage from each of the 1MOS-FETand the 2MOS-FET