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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 9490741 B1

PDFFull Text
Date of Patent:
Nov. 08, 2016

Filed:

Jul. 25, 2012

Motor control device

Applicants:

Hirokazu Matsui, Hatachinaka, JP;

Hiroyuki Yamada, Hitachinaka, JP;

Inventors:

Hirokazu Matsui, Hatachinaka, JP;

Hiroyuki Yamada, Hitachinaka, JP;

Assignee:

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

Attorney:

Crowell & Moring LLP

Primary Examiner:

Eduardo Colon Santana

Assistant Examiner:

Cortez Cook

Int. Cl.
CPC ...
B60W 10/26 (2006.01); B60W 20/00 (2016.01); H02P 27/06 (2006.01); B60L 11/00 (2006.01); B60L 11/18 (2006.01); B60L 15/20 (2006.01); H01M 10/44 (2006.01); B60L 3/00 (2006.01); B60L 3/12 (2006.01); B60L 7/14 (2006.01); H01M 10/48 (2006.01); G01R 31/36 (2006.01); G01R 31/00 (2006.01);
U.S. Cl.
CPC ...
H02P 27/06 (2013.01); B60L 3/0046 (2013.01); B60L 3/12 (2013.01); B60L 7/14 (2013.01); B60L 11/005 (2013.01); B60L 11/1803 (2013.01); B60L 11/1851 (2013.01); B60L 11/1861 (2013.01); B60L 15/20 (2013.01); B60L 15/2045 (2013.01); H01M 10/441 (2013.01); B60L 2240/12 (2013.01); B60L 2240/14 (2013.01); B60L 2240/421 (2013.01); B60L 2240/423 (2013.01); B60L 2240/425 (2013.01); B60L 2240/427 (2013.01); B60L 2240/429 (2013.01); B60L 2240/545 (2013.01); B60L 2240/547 (2013.01); B60L 2240/549 (2013.01); B60L 2240/642 (2013.01); B60L 2250/26 (2013.01); B60L 2260/26 (2013.01); G01R 31/007 (2013.01); G01R 31/362 (2013.01); H01M 10/482 (2013.01); Y02T 10/644 (2013.01); Y02T 10/645 (2013.01); Y02T 10/705 (2013.01); Y02T 10/7005 (2013.01); Y02T 10/7022 (2013.01); Y02T 10/7044 (2013.01); Y02T 10/7275 (2013.01); Y02T 10/7283 (2013.01); Y02T 10/7291 (2013.01); Y02T 90/16 (2013.01);
Abstract

A motor control device according to the invention includes: a mode setting section that sets one of a first mode in which a charge/discharge current of a secondary battery varies according to load fluctuation of a motor and a second mode in which the charge/discharge current of the secondary battery becomes constant for a predetermined time regardless of the load fluctuation of the motor; and a drive signal generating section that generates a drive signal for driving the motor on the basis of the mode that is set by the mode setting section, a torque command value, and a motor rotation speed.

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