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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 10511249 B1

PDFFull Text
Date of Patent:
Dec. 17, 2019

Filed:

Jul. 29, 2016

Inverter driving device, electric brake apparatus, and electric power steering apparatus

Applicant:

Hitachi Automotive Systems, Ltd., Hitachinaka-shi, Ibaraki, JP;

Inventors:

Masahiro Seo, Tokyo, JP;

Toshiyuki Ajima, Tokyo, JP;

Shigehisa Aoyagi, Tokyo, JP;

Takafumi Hara, Tokyo, JP;

Masaki Kashima, Hitachinaka, JP;

Yawara Kato, Hitachinaka, JP;

Assignee:

Hitachi Automotive Systems, Ltd., Hitachinaka-shi, JP;

Attorney:

Crowell & Moring LLP

Primary Examiner:

Bickey Dhakal

Assistant Examiner:

Cortez M Cook

Int. Cl.
CPC ...
H02P 6/10 (2006.01); H02P 27/04 (2016.01); H02P 27/08 (2006.01); B62D 5/04 (2006.01); B60T 7/04 (2006.01); B60T 13/66 (2006.01); B60T 13/74 (2006.01); H02P 6/28 (2016.01); H02P 6/16 (2016.01);
U.S. Cl.
CPC ...
H02P 27/08 (2013.01); B60T 7/042 (2013.01); B60T 13/662 (2013.01); B60T 13/745 (2013.01); B62D 5/046 (2013.01); H02P 6/16 (2013.01); H02P 6/28 (2016.02);
Abstract

A motor driving device controls driving of an inverter device, detects current values in two phases, and compensates a value. The motor driving device detects current values in two phases, namely, a maximum phase current value and a minimum phase current value, within a single cycle of a PWM carrier frequency. The motor driving device compensates a value obtained by subtracting an absolute value of a difference between two absolute values, namely, the detected maximum phase current value and minimum phase current value, from the smaller value of the absolute values, as the offset current component.

Find Patent Forward Citations

Seo, Masahiro. (2019). Inverter driving device, electric brake apparatus, and electric power steering apparatus (U.S. Patent No. 10511249). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10511249

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

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