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:
Aug. 26, 2014
Filed:
Aug. 07, 2012
Kiyoshi Fujii, Chita-gun, JP;
Kiyoshi Fujii, Chita-gun, JP;
Denso Corporation, Kariya, JP;
Abstract
A current sensor detects a bus current flowing to an inverter. An estimation section uses actual currents id and id outputted from a d-q conversion section as initial values, estimates currents flowing in a motor/generator and calculates estimated currents ide and iqe. A UVW conversion section converts the estimated current ide and iqe to three phase currents. A selection section inputs, as currents flowing in each phase of the motor/generator, three out of outputs of the UVW conversion section and the bus current. The bus current is used as the current of one phase, if a voltage vector representing an operation state of the inverter is an effective voltage vector.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile