Exhaust gas recirculation estimation system

Details Exhaust gas recirculation estimation system Exhaust gas recirculation estimation system

2006-12-27

2009-02-24

Wolfe, Jr., Willis R (Department: 3747)

Internal-combustion engines

Charge forming device

Exhaust gas used with the combustible mixture

C165S103000, C701S108000

Reexamination Certificate

active

07493896

ABSTRACT:
A control system and method for an exhaust gas recirculation (EGR) system of an engine includes a first sensor that senses fresh mass air flow, a second sensor that senses charge air flow, where the charge air flow is based on the fresh mass air flow and EGR exhaust flow, and a calculation module that determines a difference between the fresh mass airflow and the charge air flow and generates an EGR valve control signal based on the difference.

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