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 7617025 B1

PDF
Full Text
Expired
Date of Patent:
Nov. 10, 2009

Filed:

Jan. 27, 2006
Applicants:

Akihiro Yamamoto, Utsunomiya, JP;

Kazuhisa Yamamoto, Utsunomiya, JP;

Inventors:

Akihiro Yamamoto, Utsunomiya, JP;

Kazuhisa Yamamoto, Utsunomiya, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 7/70 (2006.01);
U.S. Cl.
CPC ...
Abstract

An electric oil pump control system for a hybrid vehicle which has an engine and a first electric motor as driving sources; a hydraulic automatic transmission connected between the engine and drive wheels of the vehicle; an electric oil pump for generating an oil pressure necessary for performing gear change of the transmission. The hybrid vehicle can run by at least one of the engine and the first electric motor in accordance with a driving state of the vehicle. The control system has a control device for driving the electric oil pump so as to generate an oil pressure supplied to the hydraulic automatic transmission, wherein the control device drives the electric oil pump when the hybrid vehicle runs with the engine and the electric oil pump which are stopped, in accordance with a predetermined condition by which it is determined that the electric oil pump should be driven.


Find Patent Forward Citations

Quick Actions:

Yamamoto, Akihiro. (2009). Electric oil pump control system in hybrid vehicle (U.S. Patent No. 7617025). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7617025

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Loading…