Patent ID: 11920528
Assignee: CATERPILLAR INC.
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F  Y | IPC F

Claim 12:
13. A gaseous fuel engine system comprising: a gaseous fuel engine including an engine housing having a plurality of cylinders formed therein; a fuel system including a fuel supply, and a plurality of fuel injectors coupled to the engine housing to inject a fuel for combustion in the plurality of cylinders, and a fuel control system; the fuel control system including a plurality of in-cylinder pressure sensors, and a fueling control unit in control communication with each of the plurality of fuel injectors, the fueling control unit structured to: receive cylinder pressure signals from the plurality of in-cylinder pressure sensors indicative of preignition in at least one of the plurality of cylinders; determine the preignition includes early preignition or standard preignition; reduce a fuel injection amount for the at least one of the plurality of cylinders to a derated fuel injection amount, wherein the gaseous fuel includes a gaseous hydrogen fuel, wherein the fueling control unit is further structured to store a cylinder pressure history, and to determine the preignition includes early preignition based on the stored cylinder pressure history.