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:
Jun. 21, 2016

Filed:

Jun. 28, 2012
Applicants:

Takashi Okamoto, Hitachinaka, JP;

Yoshinobu Arihara, Hitachinaka, JP;

Takao Miyake, Hitachinaka, JP;

Inventors:

Takashi Okamoto, Hitachinaka, JP;

Yoshinobu Arihara, Hitachinaka, JP;

Takao Miyake, Hitachinaka, JP;

Assignee:

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

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60T 7/12 (2006.01); F02N 11/08 (2006.01); F02D 41/06 (2006.01); F02D 41/38 (2006.01); F02D 41/40 (2006.01); F02N 99/00 (2010.01); F02D 41/30 (2006.01);
U.S. Cl.
CPC ...
F02N 11/0844 (2013.01); F02D 41/065 (2013.01); F02D 41/3076 (2013.01); F02D 41/3845 (2013.01); F02D 41/402 (2013.01); F02N 99/006 (2013.01); F02D 41/3029 (2013.01); F02D 2250/31 (2013.01); F02N 2200/021 (2013.01); Y02T 10/44 (2013.01); Y02T 10/48 (2013.01);
Abstract

Provided is a control device of a direct injection engine, the control device that can prevent the amount of emission of soot from increasing and the exhaust performance from worsening when a restart request is made before an engine is stopped after an idle stop condition is satisfied. When a restart request is made before an engine is stopped after an idle stop condition is satisfied, at least one of the number of fuel injections in one combustion cycle and the air/fuel ratio of an air fuel mixture used for combustion is changed for each cylinder according to a piston position at that time.


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