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:
Sep. 08, 2015
Filed:
Feb. 08, 2011
Applicants:
Yoshiyasu Ito, Toyota, JP;
Takeshi Miyaura, Toyota, JP;
Makio Tsuchiyama, Toyota, JP;
Inventors:
Assignee:
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02D 41/30 (2006.01); F02D 41/04 (2006.01); F02D 41/14 (2006.01); F02D 41/00 (2006.01); F02M 63/00 (2006.01); F02M 47/02 (2006.01);
U.S. Cl.
CPC ...
F02D 41/04 (2013.01); F02D 41/0025 (2013.01); F02D 41/1497 (2013.01); F02D 2200/021 (2013.01); F02D 2200/0406 (2013.01); F02D 2200/0606 (2013.01); F02D 2200/0612 (2013.01); F02D 2200/101 (2013.01); F02D 2200/1012 (2013.01); F02M 47/027 (2013.01); F02M 63/0026 (2013.01); F02M 2200/95 (2013.01);
Abstract
An electronic control unit detects an index value of an amount of generated heat of fuel to be combusted in a diesel engine. The electronic control unit also executes the injection of a predetermined amount of the fuel to estimate a cetane number of the fuel and calculates an index value of output torque of the diesel engine generated with that execution. Then, the electronic control unit calculates an estimated value of the cetane number of the fuel based on the index value of the output torque and the index value of the amount of generated heat.