Internal-combustion engines – Charge forming device – Crankcase vapor used with combustible mixture
Patent
1992-05-28
1993-03-02
Wolfe, Willis R.
Internal-combustion engines
Charge forming device
Crankcase vapor used with combustible mixture
731173, 36443106, F02M 2507
Patent
active
051900173
ABSTRACT:
The method for determining a fault in an exhaust gas recirculation system includes comparing the measured exhaust gas flow of the EGR system to an expected exhaust gas recirculation flow. If the two are not the same the time period that the expected exhaust gas recirculation flow deviates from the measured exhaust gas recirculation flow by a calibrated EGR flow amount is determined. A fault condition in the EGR system is indicated if the duration of the deviation exceeds a predetermined amount of time.
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Cullen Michael J.
Samson Rogelio G.
Teasdale Alistair S.
Wanat Richard L.
Abolins Peter
Ford Motor Company
May Roger L.
Wolfe Willis R.
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