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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 11598340 B1

PDFFull Text
Date of Patent:
Mar. 07, 2023

Filed:

Sep. 30, 2020

Electric oil pump having temperature sensors on circuit board and transmission to execute energization prohibition control of pump

Applicant:

Honda Motor Co., Ltd., Tokyo, JP;

Inventor:

Masamichi Harada, Saitama, JP;

Assignee:

Honda Motor Co., Ltd., Tokyo, JP;

Attorney:

JCIPRNET

Primary Examiner:

Nathan C Zollinger

Assistant Examiner:

Timothy P Solak

Int. Cl.
CPC ...
F04D 15/00 (2006.01); F04D 13/06 (2006.01); F04D 13/12 (2006.01); H02P 29/68 (2016.01); F04D 15/02 (2006.01); F04D 13/02 (2006.01); F04D 29/58 (2006.01); F04B 23/04 (2006.01); F04C 14/28 (2006.01); F04B 49/02 (2006.01); F04B 17/03 (2006.01); F04B 49/10 (2006.01); F04B 49/06 (2006.01);
U.S. Cl.
CPC ...
F04D 15/0077 (2013.01); F04D 13/06 (2013.01); F04D 13/12 (2013.01); F04B 17/03 (2013.01); F04B 23/04 (2013.01); F04B 49/02 (2013.01); F04B 49/065 (2013.01); F04B 49/10 (2013.01); F04C 14/28 (2013.01); F04D 13/02 (2013.01); F04D 15/0263 (2013.01); F04D 29/5806 (2013.01); H02P 29/68 (2016.02);
Abstract

A power supply controller includes a driver having a circuit board and controlling an operation of an electric oil pump, a control unit controlling power supply to the driver, a board temperature sensor detecting a temperature of the circuit board; and an oil temperature sensor detecting a temperature of a working oil of a transmission as an oil temperature. The control unit executes energization prohibition control for prohibiting power supply to the driver when the temperature of the circuit board detected by the board temperature sensor exceeds a predetermined first threshold temperature, and executes cancellation determination for determining whether to cancel the energization prohibition control based on the oil temperature detected by the oil temperature sensor during execution of the energization prohibition control.

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