Model-based inlet air dynamics state characterization
AssigneeGM Global Technology Operations LLC
InventorsOgnyan Yanakiev, Chan-Chiao Lin, Sherif El Tahry
Life of this patent
Estimating the term…
Abstract
An engine control system that having an exhaust gas recirculation (EGR) valve includes a first module that determines an EGR error and a second module that calculates a fuel injection timing based on the EGR error. Operation of an engine is regulated based on the fuel injection timing to reduce emissions during transient operation of the engine.
Claims22
An engine control system that includes an exhaust gas recirculation (EGR) valve, comprising:
- a first module that determines an EGR error;
- and
- a second module that calculates a fuel injection timing based on said EGR error, wherein operation of an engine is regulated based on said fuel injection timing to reduce emissions during transient operation.
A method of reducing emissions from an engine having an exhaust gas recirculation (EGR) system during transient operation, comprising:
- determining an EGR error;
- calculating a fuel injection timing based on said EGR error;
- and
- regulating operation of said engine based on said fuel injection timing.
A method of reducing emissions from an engine having an exhaust gas recirculation (EGR) system during transient operation, comprising:
- determining an EGR error;
- determining a base fuel injection timing;
- filtering said base fuel injection timing based on said EGR error to determine a fuel injection timing;
- and
- regulating operation of said engine based on said fuel injection timing.
Dependencies are inferred from the claim text.