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. 29, 2026
Filed:
Sep. 26, 2023
Applicant:
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Inventors:
Shogo Tanaka, Okazaki, JP;
Ryo Kanda, Nisshin, JP;
Seiji Kanda, Miyoshi, JP;
Ryoko Tanaka, Toyota, JP;
Takuma Endo, Toyota, JP;
Assignee:
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05B 23/02 (2006.01);
U.S. Cl.
CPC ...
G05B 23/0283 (2013.01); G05B 23/024 (2013.01);
Abstract
ECU is configured to determine a life of a brush motor that is a power source of the oil pump. ECU estimates the motor current of the brush motor based on the oil temperature and the hydraulic pressure. ECU measures the operation time of the brush motor at the estimated motor current. ECU determines the life of the brush motor based on the estimated motor current and the measured operation times.