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.

Date of Patent:
Mar. 03, 2015

Filed:

Aug. 24, 2012
Applicants:

Yoshihisa Nakamoto, Hiroshima, JP;

Takeo Yamauchi, Aki-gun, JP;

Junichi Taga, Higashihiroshima, JP;

Inventors:

Yoshihisa Nakamoto, Hiroshima, JP;

Takeo Yamauchi, Aki-gun, JP;

Junichi Taga, Higashihiroshima, JP;

Assignee:

Mazda Motor Corporation, Hiroshima, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02D 45/00 (2006.01); F02D 41/26 (2006.01); F02N 11/08 (2006.01); F02N 19/00 (2010.01);
U.S. Cl.
CPC ...
F02N 11/08 (2013.01); F02N 19/00 (2013.01); F02N 2019/002 (2013.01); F02N 2300/2002 (2013.01);
Abstract

A start control device includes a compression self-ignition engine, fuel injection valve, piston stop position detector, starter motor, and controller for stopping the engine when an automatic stop condition is satisfied, and thereafter, when a restart condition is satisfied and a compression-stroke-in-stop cylinder piston stop position is within a stop position range on a bottom dead center side, restarting the engine by injecting fuel into the compression-stroke-in-stop cylinder while applying torque to the engine. In restarting the engine, when the restart condition is not based on driver request, when the compression-stroke-in-stop cylinder piston stop position is within the stop position range, the controller restarts the engine, injecting fuel into an intake-stroke-in-stop cylinder on an intake stroke, when the cylinder reaches the compression stroke. When the restart condition is based on driver request, the controller restarts the engine, injecting fuel into the compression-stroke-in-stop cylinder.


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