Patent ID: 11891962
Assignee: CATERPILLAR INC.
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F  Y | IPC F

Claim 17:
18. A fuel control system for a gaseous fuel engine system comprising:
a computer readable memory storing an engine performance model populated based on an engine operating parameter that varies on the basis of a relative amount of a gaseous hydrogen fuel (H2) combusted in a cylinder in a gaseous fuel engine;
a fueling control unit coupled to the computer readable memory and structured to:
output a control command to a fuel admission valve to deliver additional H2 supplementing H2 in a gaseous fuel blend conveyed into the cylinder;
determine the control command by way of the engine performance model to form within the cylinder a combustion charge of the gaseous fuel blend, the additional H2, and air, having a relative amount of H2 that is based on a performance target of the engine operating parameter;
adjust the additional H2 amount relative to a prior additional H2 amount by way of the control command; and
operate the engine in satisfaction of the performance target based on the adjusted additional H2 amount.