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:
Jul. 26, 2016

Filed:

Mar. 12, 2013
Applicant:

Nissan Motor Co., Ltd., Yokohama-shi, Kanagawa, JP;

Inventor:

Kazuki Iijima, Tokyo, JP;

Assignee:

NISSAN MOTOR CO., LTD., Yokohama-shi, Kanagawa, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02D 41/02 (2006.01); F02P 5/15 (2006.01); F02P 5/14 (2006.01); F01N 3/20 (2006.01);
U.S. Cl.
CPC ...
F02P 5/14 (2013.01); F01N 3/2006 (2013.01); F02D 41/024 (2013.01); F02P 5/1506 (2013.01); F02P 5/1508 (2013.01); F01N 2410/06 (2013.01); F02D 2200/021 (2013.01); Y02T 10/26 (2013.01); Y02T 10/46 (2013.01);
Abstract

A water temperature indicated at a startup timing of an engine is stored as a startup-timing water temperature. During an idling state generated after a cold start, a retard amount (S) is calculated based on the startup-timing water temperature. At this time, the retard amount (S) is set at a larger level as the startup-timing water temperature becomes higher. However, in a case that the startup-timing water temperature is higher than a predetermined temperature, the retard amount (S) is set at a smaller level as the startup-timing water temperature becomes higher. A retard amount (R) is calculated based on a current water temperature in the same manner as the retard amount (S). A smaller one is selected from the retard amount (S) and the retard amount (R), as a basic retard amount.


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Iijima, Kazuki. (2016). Ignition timing control device of internal combustion engine (U.S. Patent No. 9399980). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9399980

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