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:
Sep. 02, 2025
Filed:
Feb. 06, 2020
Mitsuba Corporation, Gunma, JP;
Toyota Jidosha Kabushiki Kaisha, Aichi, JP;
Masahiro Ishijima, Kiryu, JP;
Masahiro Fueki, Kiryu, JP;
Shinji Shibuya, Kiryu, JP;
Guodong Tan, Toyota, JP;
Taiki Ishida, Toyota, JP;
Tomohiro Chimbe, Toyota, JP;
Mitsuba Corporation, Gunma, JP;
Toyota Jidosha Kabushiki Kaisha, Aichi, JP;
Abstract
An electric oil pump for automobile transmission clutch engagement includes: a temperature sensor that measures a temperature of oil supplied to an oil supply destination relating to clutch engagement of an automobile transmission; an oil pump drive motor; a current determination part that determines a current value output to the oil pump drive motor to a predetermined current value determined such that the oil pump drive motor is capable of being driven without stopping in a case where the temperature is equal to or less than a predetermined temperature at which a torque of the oil pump drive motor becomes smaller than a load of the oil pump drive motor; and an oil pump that supplies oil to the oil supply destination by the oil pump drive motor being driven based on the determined current value.