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.

Date of Patent:
Oct. 13, 2015

Filed:

Sep. 28, 2011
Applicants:

Harumi Horihata, Nagoya, JP;

Hideaki Nakayama, Tokoname, JP;

Inventors:

Harumi Horihata, Nagoya, JP;

Hideaki Nakayama, Tokoname, JP;

Assignee:

DENSO CORPORATION, Kariya, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02K 11/00 (2006.01); H02M 7/538 (2007.01); H02P 9/48 (2006.01); H02M 1/38 (2007.01); H02P 27/08 (2006.01);
U.S. Cl.
CPC ...
H02M 7/53803 (2013.01); H02P 9/48 (2013.01); H02M 1/38 (2013.01); H02P 27/08 (2013.01);
Abstract

In a rotary electric machine, an on-timing setter sets on-timings of each of a high-side switching element and a low-side switching element for each of at least two three-phase stator windings. An off-timing setter sets off-timings of each of the high-side switching element and the low-side switching element. An off-timing fault determiner determines a fault of an off-timing of a target switching element as one of the high-side switching element and the low-side switching element set by the off-timing setter when a time interval from the off-timing of the target switching element set by the off-timing setter to time when a phase voltage corresponding to the target switching element reaches a threshold after the off-timing thereof is shorter than a preset value.


Find Patent Forward Citations

Horihata, Harumi. (2015). Rotary electric machine for reliably detecting off timing of switching element (U.S. Patent No. 9160251). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9160251

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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