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.:
Date of Patent:
Dec. 10, 2019
Filed:
Dec. 15, 2017
Applicant:
Hitachi Automotive Systems, Ltd., Hitachinaka-shi, Ibaraki, JP;
Inventors:
Assignee:
HITACHI AUTOMOTIVE SYSTEMS, LTD., Hitachinaka-Shi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02D 41/12 (2006.01); F02P 5/04 (2006.01); F02D 15/02 (2006.01); F02D 41/32 (2006.01); F02P 5/15 (2006.01); F02D 13/02 (2006.01); F02D 41/18 (2006.01); F02D 35/02 (2006.01); F02D 41/04 (2006.01); F02D 41/00 (2006.01);
U.S. Cl.
CPC ...
F02P 5/045 (2013.01); F02D 13/0234 (2013.01); F02D 15/02 (2013.01); F02D 35/026 (2013.01); F02D 41/123 (2013.01); F02D 41/18 (2013.01); F02D 41/32 (2013.01); F02P 5/15 (2013.01); F02D 13/0238 (2013.01); F02D 41/047 (2013.01); F02D 2041/001 (2013.01); F02D 2200/021 (2013.01); F02D 2200/022 (2013.01); F02D 2200/101 (2013.01);
Abstract
In a control device for an internal combustion engine and a method of estimating a combustion chamber-wall temperature of an internal combustion engine of the invention, a difference between a wall temperature of the combustion chamber and a cooling water temperature is set according to an integrated value of the intake air amount of the internal combustion engine after start of the fuel-cut, and the estimated value of the wall temperature of the combustion chamber during the fuel-cut is obtained based on the difference and the cooling water temperature.