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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 9531309 B1

PDFFull Text
Date of Patent:
Dec. 27, 2016

Filed:

Mar. 19, 2014

Drive device

Applicant:

Aisin Aw Co., Ltd., Anjo-shi, Aichi-ken, JP;

Inventors:

Keiko Nakao, Kariya, JP;

Ken Iwatsuki, Anjo, JP;

Assignee:

AISIN AW CO., LTD., Anjo, JP;

Attorney:

Oliff PLC

Primary Examiner:

Antony M Paul

Int. Cl.
CPC ...
H02P 27/04 (2016.01); H02P 6/14 (2016.01); H02P 27/06 (2006.01); H02M 7/48 (2007.01); H02P 5/74 (2006.01); B60W 10/08 (2006.01); B60W 10/30 (2006.01); F16H 61/00 (2006.01); F16H 61/02 (2006.01); H02K 11/00 (2016.01); H02P 27/08 (2006.01); H02P 6/18 (2016.01); H02M 7/5387 (2007.01); F15B 11/08 (2006.01); H02K 5/22 (2006.01); H02M 1/00 (2006.01);
U.S. Cl.
CPC ...
H02P 6/14 (2013.01); B60W 10/08 (2013.01); B60W 10/30 (2013.01); F15B 11/08 (2013.01); F16H 61/0031 (2013.01); F16H 61/0265 (2013.01); H02K 5/22 (2013.01); H02K 11/0094 (2013.01); H02K 11/27 (2016.01); H02K 11/33 (2016.01); H02M 7/48 (2013.01); H02M 7/53875 (2013.01); H02P 5/74 (2013.01); H02P 6/18 (2013.01); H02P 27/06 (2013.01); H02P 27/08 (2013.01); F15B 2211/2053 (2013.01); F15B 2211/20515 (2013.01); H02M 2001/0009 (2013.01);
Abstract

A drive device that includes a current sensor that detects a current flowing in the wheel driving rotary electric machine; and shunt resistors that detect currents flowing in the respective second switching element units for the corresponding phases between the direct-current power supply and the second switching element units for the respective phases, wherein a ratio of a period during which current detection can be performed by the current sensor to a control period of the first inverter is higher than a ratio of a period during which current detection can be performed by the shunt resistors to a control period of the second inverter.

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