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.:

US 10374541 B1

PDF
Full Text
Expired
Date of Patent:
Aug. 06, 2019

Filed:

Mar. 29, 2018
Applicant:

Toyota Jidosha Kabushiki Kaisha, Toyota-shi, JP;

Inventors:

Kazuya Yamamoto, Toyota, JP;

Yu Sasaki, Toyota, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 31/02 (2006.01); H02P 27/04 (2016.01); H03M 1/10 (2006.01); H03M 1/64 (2006.01);
U.S. Cl.
CPC ...
H02P 27/045 (2013.01); H03M 1/1076 (2013.01); H03M 1/645 (2013.01);
Abstract

A motor control system includes a motor, a resolver configured to detect a rotation angle of the motor, a resolver/digital converter configured to convert an analog angle signal output from the resolver into a digital angle signal, and a motor control unit configured to control the motor based on the digital angle signal output from the resolver/digital converter and determine, when an integrated value obtained by integrating the digital angle signal at a predetermined time interval is not within a threshold range, that the resolver/digital converter is abnormal. The motor control unit increases the time interval for the integration when a rotation speed of the motor decreases and decreases the time interval for the integration when the rotation speed of the motor increases.


Find Patent Forward Citations

Yamamoto, Kazuya. (2019). Motor control system and method for detecting abnormality in resolver/digital converter (U.S. Patent No. 10374541). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10374541

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