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. 19, 2014
Filed:
Jan. 05, 2012
Applicant:
Hiroya Tsuji, Yokkaichi, JP;
Inventor:
Hiroya Tsuji, Yokkaichi, JP;
Assignee:
Denso Corporation, Kariya, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02P 21/14 (2006.01); H02P 21/00 (2006.01);
U.S. Cl.
CPC ...
H02P 21/0035 (2013.01);
Abstract
In a norm setting section, a norm of an output voltage vector of an inverter is set based on a required torque and an electrical angle speed. In a phase setting section, a phase is set as controlled variables for performing a feedback control of an estimated torque to the required torque. In an operation signal generating section, operation signals are generated based on the norm set by the norm setting section and the phase set by the phase setting section, and the signals are outputted to the inverter. Based on the value of the phase, existence of abnormalities of a permanent magnet of a motor-generator is determined.