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:
Mar. 05, 2024
Filed:
May. 17, 2023
Caterpillar Inc., Peoria, IL (US);
Michael T. Graziano, Jr., Washington, IL (US);
Eric L. Schroeder, Germantown Hills, IL (US);
Christopher R. Gehrke, Chillicothe, IL (US);
Jaswinder Singh, Dunlap, IL (US);
Patrick J. Seiler, Peoria, IL (US);
Andrew J. Neaville, Mt. Pulaski, IL (US);
Geetika Dilawari, Dunlap, IL (US);
Zachary S. Engstrom, East Peoria, IL (US);
Caterpillar Inc., Peoria, IL (US);
Abstract
Operating a gaseous fuel engine system includes detecting preignition in one or more of a plurality of cylinders based on a monitored cylinder pressure during combustion of a gaseous fuel such as a gaseous hydrogen fuel. Operating a gaseous fuel engine system also includes reducing a fuel injection amount for the one or more of the plurality of cylinders to a derated fuel injection amount that is based on a timing of the detected preignition. Fuel injection amount may be reduced to a greater relative extent if detected preignition is early, and to a lesser relative extent if detected preignition is later, in an engine cycle. Related apparatus and control logic is also disclosed.