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:
Aug. 03, 2021
Filed:
May. 16, 2018
Applicant:
Fujitsu Limited, Kawasaki, JP;
Inventors:
Noriyasu Aso, Isehara, JP;
Masatoshi Ogawa, Zama, JP;
Assignee:
FUJITSU LIMITED, Kawasaki, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02D 41/26 (2006.01); F02D 41/14 (2006.01); F02D 35/02 (2006.01); F02D 41/40 (2006.01); F02D 41/00 (2006.01); G06F 17/17 (2006.01);
U.S. Cl.
CPC ...
F02D 41/1401 (2013.01); F02D 35/023 (2013.01); F02D 35/028 (2013.01); F02D 41/009 (2013.01); F02D 41/1402 (2013.01); F02D 41/1406 (2013.01); F02D 41/26 (2013.01); F02D 41/402 (2013.01); G06F 17/17 (2013.01); F02D 41/1454 (2013.01); F02D 2041/1433 (2013.01); F02D 2200/0602 (2013.01); F02D 2200/0614 (2013.01); F02D 2200/1004 (2013.01); F02D 2250/14 (2013.01);
Abstract
A Wiebe function parameter identification method, the method includes: acquiring, by a computer, operation data when an internal-combustion engine is in operation; and identifying values of a plurality of parameters included in a combination of at least two Wiebe functions including a first Wiebe function and a second Wiebe function based on the operation data and a first difference between values of a same parameter of the first Wiebe function and the second Wiebe function.