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.:
Date of Patent:
Oct. 26, 2021
Filed:
Feb. 28, 2017
Nissin Kogyo Co., Ltd., Tomi, JP;
Shintaro Kosuge, Tomi, JP;
NISSIN KOGYO CO., LTD., Tomi, JP;
Abstract
A motor control device includes a drive control device that controls turning on/off of a motor, and a voltage obtaining device that obtains a voltage across terminals of the motor. The drive control device determines whether or not the motor drive signal is OFF (ST). If the determination is Yes, the drive control device determines whether or not the voltage across the terminals, which is obtained by the voltage obtaining device, has decreased and reached a target voltage (ST). If the determination at STis Yes, an ON time is set on the basis of the immediately preceding OFF time (ST), and the motor drive signal is switched from OFF to ON (ST). After the ON time elapses, the motor drive signal is switched from ON to OFF (ST). Low-rotational-speed motor control can be performed while suppressing heat generation in a motor relay.