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:
Sep. 11, 2018

Filed:

Feb. 23, 2016
Applicant:

Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi-ken, JP;

Inventors:

Yusuke Suzuki, Hadano, JP;

Susumu Kojima, Susono, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02N 11/08 (2006.01); F02N 99/00 (2010.01); F02D 41/06 (2006.01);
U.S. Cl.
CPC ...
F02N 11/0855 (2013.01); F02N 11/0844 (2013.01); F02N 99/002 (2013.01); F02D 41/065 (2013.01); F02D 2250/06 (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); Y02T 10/48 (2013.01);
Abstract

A control device for an engine of the invention executes an automatic stop control for stopping stop a rotation of a crank shaft when a predetermined automatic stop condition is satisfied. The device acquires a focused peak value of the engine speed appearing after a time when a rotation direction of the crank shaft first reverses while the automatic stop control has been executed, determines, based on the focused peak value, whether there will be an excessive peak value expected to depart from a predetermined permission range after the focused peak value appears, and executes a starter start control for driving the starter, restarting the fuel supply and igniting the fuel to restart an operation of the engine when a predetermined restart condition is satisfied, the engine speed is within the predetermined permission range and it has been determined that there will be no excessive peak value.


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