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. 06, 2024
Filed:
May. 12, 2023
Regents of the University of Minnesota, Minneapolis, MN (US);
The United States of America As Represented BY the Secretary of the Army, Washington, DC (US);
Zongxuan Sun, Plymouth, MN (US);
Xiaonan Dong, Hermosa Beach, CA (US);
Clifford Francis Webster Goertemiller, Saint Paul, MN (US);
Kenneth Seong-uk Kim, Clarksville, MD (US);
Chol-bum Mike Kweon, Hanover, MD (US);
Regents of the University of Minnesota, Minneapolis, MN;
The United States of America As Represented By the Secretary of The Army, Washington, DC (US);
Abstract
In some examples, a method for estimating the cetane number of a fuel includes receiving current engine operating condition measurements from a compression ignition (CI) engine using the fuel, and determining a value for a current engine performance indicator. The method further includes determining a projected engine performance indicator value for the CI engine based on the current estimated cetane number, current engine control signals and the current engine operating condition measurements. The method also includes determining that a difference between the value of the current engine performance indicator and the projected engine performance indicator value is greater than a threshold amount. If the difference is greater than the threshold amount, the method also includes determining a new estimated cetane number.