System and method for compensating gaseous fuel injection

摘要

A system and method for operating an engine using gaseous fuel is described. In one example, engine operation is adjusted responsive to a temperature of air entering an engine and a resultant temperature of a gaseous fuel injected to the engine. The system and method may improve engine air-fuel control.

主权项

1. A method for operating an engine, comprising:
determining a temperature of air entering the engine; determining a temperature of a gaseous fuel injected to the engine, the temperature of the gaseous fuel based on engine intake manifold pressure, on a calculation that does not include air temperature, and being a temperature of the gaseous fuel after it has expanded in an engine air intake; and adjusting a cylinder air charge via an electronic controller in response to the temperature of air entering the engine and the temperature of the gaseous fuel injected into the engine.