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. 08, 2015
Filed:
Jul. 09, 2012
Applicants:
Hironori Narita, Hino, JP;
Munechika Tsutsumi, Hino, JP;
Hitoshi Nakano, Hino, JP;
Inventors:
Assignee:
HINO MOTORS, LTD., Hino-shi, JP;
Primary Examiner:
Int. Cl.
CPC ...
G01M 15/10 (2006.01); F02M 25/07 (2006.01); F02D 41/00 (2006.01); F02D 41/22 (2006.01);
U.S. Cl.
CPC ...
F02M 25/0702 (2013.01); F02D 41/0072 (2013.01); F02D 41/0077 (2013.01); F02D 41/22 (2013.01); F02D 2041/0075 (2013.01); F02D 2200/0402 (2013.01); F02D 2200/0406 (2013.01); F02D 2200/0414 (2013.01); F02M 25/0707 (2013.01); F02M 25/0713 (2013.01); F02M 25/0731 (2013.01); Y02T 10/47 (2013.01);
Abstract
An absolute value of a deviation of an actual EGR ratio, calculated in a current operational status of an enginefrom a target EGR ratio set on the basis of current operational status of the engineis acquired and is multiplied by a quotient, as gain, acquired from division of a feedback correction amount of opening degree of an EGR valveby an upper limit of the feedback correction amount to determine normality when an acquired product is close to '0' and determine higher degree of abnormality the further the product is away from '0'.