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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 10358995 B1

PDFFull Text
Date of Patent:
Jul. 23, 2019

Filed:

Jul. 20, 2012

Engine automatic stop/restart device

Applicants:

Michitaka Fujiwara, Kobe, JP;

Tsuneo Tanabe, Kobe, JP;

Inventors:

Michitaka Fujiwara, Kobe, JP;

Tsuneo Tanabe, Kobe, JP;

Assignee:

Mitsubishi Electric Corporation, Tokyo, JP;

Attorneys:

Sughrue Mion, PLLC

Richard C. Turner

Primary Examiner:

Hung Q Nguyen

Assistant Examiner:

Brian P Monahon

Int. Cl.
CPC ...
F02D 41/06 (2006.01); F02D 29/02 (2006.01); F02D 41/00 (2006.01); F02D 37/02 (2006.01); F02N 11/08 (2006.01); F02N 15/06 (2006.01); F02P 5/15 (2006.01); F02P 15/06 (2006.01); F02P 5/04 (2006.01); F02P 7/06 (2006.01); F02P 9/00 (2006.01); F02P 11/02 (2006.01);
U.S. Cl.
CPC ...
F02D 41/065 (2013.01); F02D 29/02 (2013.01); F02D 37/02 (2013.01); F02D 41/009 (2013.01); F02N 11/0844 (2013.01); F02P 5/1506 (2013.01); F02P 11/02 (2013.01); F02D 2250/06 (2013.01); F02N 11/0851 (2013.01); F02N 15/067 (2013.01); F02N 2200/022 (2013.01); F02N 2200/0801 (2013.01); F02N 2200/101 (2013.01); F02N 2200/102 (2013.01); F02N 2250/04 (2013.01); F02P 5/045 (2013.01); F02P 7/06 (2013.01); F02P 9/005 (2013.01); Y02T 10/46 (2013.01); Y02T 10/48 (2013.01);
Abstract

An engine automatic stop/restart device includes an ignition-prohibition-decision unit that prohibits an ignition for an engine, which is controlled by the ignition-control unit, when a reverse rotation of the engine is detected based on a crank-angle signal; and an ignition-prohibition-release-decision unit that releases an ignition prohibition, after the ignition is prohibited by the ignition-prohibition-decision unit; in which the ignition-prohibition-release-decision unit releases the ignition prohibition when regular rotational signals of the engine, of which count is greater than or equal to a predetermined count, is detected and an engine revolution number is greater than or equal to a predetermined revolution number, after the reverse rotation of the engine is detected, and before a crank is positioned at a compression top dead center of the engine.

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