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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 10122303 B1

PDFFull Text
Date of Patent:
Nov. 06, 2018

Filed:

Apr. 16, 2013

Motor control device

Applicant:

Mitsuba Corporation, Kiryu-shi, JP;

Inventors:

Hitoshi Roppongi, Kiryu, JP;

Kazuya Tateoka, Kiryu, JP;

Katsuhiro Tanino, Kiryu, JP;

Atsushi Nakamura, Kiryu, JP;

Assignee:

Mitsuba Corporation, Gunma, JP;

Attorney:

Wood Herron & Evans LLP

Primary Examiner:

Bickey Dhakal

Assistant Examiner:

Charles S Laughlin

Int. Cl.
CPC ...
B60L 3/04 (2006.01); H02P 3/02 (2006.01); H02P 6/24 (2006.01); H02P 6/08 (2016.01); E05F 15/646 (2015.01); E05F 15/70 (2015.01); H02P 6/30 (2016.01); B60J 5/06 (2006.01); E05D 15/10 (2006.01);
U.S. Cl.
CPC ...
H02P 3/025 (2013.01); E05F 15/646 (2015.01); E05F 15/70 (2015.01); H02P 6/085 (2013.01); H02P 6/24 (2013.01); H02P 6/30 (2016.02); B60J 5/06 (2013.01); E05D 15/1044 (2013.01); E05D 2015/1055 (2013.01); E05Y 2201/438 (2013.01); E05Y 2201/672 (2013.01); E05Y 2400/302 (2013.01); E05Y 2400/326 (2013.01); E05Y 2400/36 (2013.01); E05Y 2400/44 (2013.01); E05Y 2800/00 (2013.01); E05Y 2800/74 (2013.01); E05Y 2900/50 (2013.01); E05Y 2900/531 (2013.01);
Abstract

The motor control device is an electric motor control device including a control unit (control circuit unit) configured to output a forward-rotation command or a reverse-rotation command to the electric motor. The control unit includes a position detector (door opening/closing information generation circuit) configured to detect a rotation direction of the electric motor when a detection signal is input from a rotation sensor (Hall integrated circuit (IC)), which detects the rotation of the electric motor, while no current is supplied to the electric motor. The control unit includes an electric current supply device (pulse width modulation (PWM) command generation circuit) configured to supply an electric current by which the electric motor is rotated in an opposite direction to the detected rotation direction by increasing an electric current supply duty ratio every time the detection signal is switched.

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