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 9523295 B1

PDF
Full Text
Expired
Date of Patent:
Dec. 20, 2016

Filed:

Sep. 17, 2014
Applicant:

Hitachi Automotive Systems, Ltd., Hitachinaka-shi, Ibaraki, JP;

Inventors:

Shinichi Kawada, Isehara, JP;

Naoki Kokubo, Hiratsuka, JP;

Assignee:

HITACHI AUTOMOTIVE SYSTEMS, LTD., Hitachinaka-Shi, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01L 9/04 (2006.01); F01L 13/00 (2006.01); F01M 1/06 (2006.01);
U.S. Cl.
CPC ...
F01L 13/00 (2013.01); F01L 9/04 (2013.01); F01L 2009/0484 (2013.01); F01M 2001/064 (2013.01);
Abstract

A controller of a variable valve apparatus of an internal combustion engine has an engine start indication detecting circuit that detects an indication of an engine start. When the indication of the engine start is detected by the engine start indication detecting circuit in a state in which temperature of the engine is lower than a predetermined temperature, an electric motor provided in the variable valve apparatus is supplied with a current, and this current supply to the electric motor is maintained for a predetermined time from a time point of the detection of the indication of the engine start to an engine cranking start.


Find Patent Forward Citations

Kawada, Shinichi. (2016). Controller of variable valve apparatus of internal combustion engine and variable valve system of internal combustion engine (U.S. Patent No. 9523295). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9523295

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

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