Power plants – Internal combustion engine with treatment or handling of... – Methods
Patent
1998-05-11
1999-12-07
Look, Edward K.
Power plants
Internal combustion engine with treatment or handling of...
Methods
60276, 60285, 60286, 60277, F01N 300
Patent
active
059963379
ABSTRACT:
A calorimetric sensor system requires a vehicle's internal combustion engine to cyclically operate between first and second conditions to repeatedly produce a varying exhaust gas composition which is consistent from cycle to cycle. The rate of change of the calorimetric sensor's signal as the engine cycles from one to the other condition is mathematically factored, after signal filtering at frequencies of the induced perturbation, to provide signals indicative of the emissions concentration in the exhaust gases, the air/fuel ratio of the engine and whether the engine is operating lean or rich. The signals can be used as fuel control engine signals as well as OBD signals. Additionally, the system can control industrial processes through small process perturbations affecting the compositions of process gases.
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Blosser Patrick Wayne
Koermer Gerald Stephen
Naber Jeffrey Donald
Dockrey J. William
Engelhard Corporation
Look Edward K.
Motorola Inc.
Nawalanic Frank J.
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