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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 10374539 B1

PDFFull Text
Date of Patent:
Aug. 06, 2019

Filed:

Feb. 28, 2018

Driving device

Applicant:

Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi-ken, JP;

Inventors:

Toshihiro Yamamoto, Toyohashi, JP;

Kenji Yamada, Komaki, JP;

Assignee:

TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota-shi, Aichi-ken, JP;

Attorney:

Sughrue Mion, PLLC

Primary Examiner:

Karen Masih

Int. Cl.
CPC ...
H02P 21/00 (2016.01); H02P 21/13 (2006.01); B60L 15/00 (2006.01); B60L 15/08 (2006.01); H02P 21/22 (2016.01); H02P 27/12 (2006.01); H02P 21/14 (2016.01); H02P 29/50 (2016.01); B60L 50/50 (2019.01);
U.S. Cl.
CPC ...
H02P 21/13 (2013.01); B60L 15/007 (2013.01); B60L 15/08 (2013.01); H02P 21/0003 (2013.01); H02P 21/14 (2013.01); H02P 21/22 (2016.02); H02P 27/12 (2013.01); H02P 29/50 (2016.02); B60L 50/50 (2019.02); B60L 2210/42 (2013.01); Y02T 10/644 (2013.01); Y02T 10/7225 (2013.01); Y02T 10/7241 (2013.01);
Abstract

A driving device includes a motor, an inverter configured to drive the motor by switching a plurality of switching elements, and an electronic control unit configured to set voltage commands of phases according to temporary voltage commands of the phases based on a torque command of the motor and perform switching control of the switching elements by generating PWM signals for the switching elements by using the voltage commands of the phases and a carrier voltage. The electronic control unit is configured to switch a method of setting the voltage commands between a first method and a second method for each irregular time interval. The first method is a method of setting the voltage commands without superposing harmonics to the temporary voltage commands, and the second method is a method of setting the voltage commands by superposing the harmonics to the temporary voltage command.

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