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:
Mar. 13, 2018

Filed:

Jul. 22, 2016
Applicant:

Denso Corporation, Kariya, Aichi-pref., JP;

Inventor:

Toshihisa Yamamoto, Kariya, JP;

Assignee:

DENSO CORPORATION, Kariya, Aichi-pref., JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02H 7/09 (2006.01); B62D 5/04 (2006.01); F02N 11/00 (2006.01); H02P 29/024 (2016.01); H02P 29/032 (2016.01); H02P 27/06 (2006.01);
U.S. Cl.
CPC ...
B62D 5/046 (2013.01); B62D 5/04 (2013.01); F02N 11/003 (2013.01); H02P 29/024 (2013.01); H02P 29/032 (2016.02); H02P 27/06 (2013.01);
Abstract

A motor controller includes, in a microcomputer, a voltage fall determiner determining whether a reference voltage falls from a normal value based on an Analog-to-Digital (A/D) conversion value of a second voltage from an A/D converter, and a corrector (i) calculating a correction coefficient based on the A/D conversion value of the second voltage from the A/D converter and (ii) correcting an A/D conversion value of an input voltage that is output from the A/D converter. A core of the microcomputer generates a control signal based on an input voltage A/D conversion value, when the voltage fall determiner determines that the reference voltage is equal to or higher than a normal reference value. The motor controller keeps its motor control accuracy in such manner, even when a fall of an A/D conversion reference voltage is observed.


Find Patent Forward Citations

Yamamoto, Toshihisa. (2018). Motor controller and electric power steering device using same (U.S. Patent No. 9914472). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9914472

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

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