Data processing: vehicles – navigation – and relative location – Vehicle control – guidance – operation – or indication – With indicator or control of power plant
Reexamination Certificate
2005-08-02
2005-08-02
Argenbright, Tony M. (Department: 3747)
Data processing: vehicles, navigation, and relative location
Vehicle control, guidance, operation, or indication
With indicator or control of power plant
C123S672000, C123S676000, C060S274000, C060S276000, C073S116070, C073S117020, C073S118040
Reexamination Certificate
active
06925373
ABSTRACT:
The invention relates to a virtual sensor of exhaust emissions from a fuel-injection endothermic engine having a combustion chamber in each of its cylinders, a fuel injector serving each combustion chamber, and an electronic fuel-injection control unit. Advantageously, the virtual sensor includes an input interface receiving a signal from at least one pressure sensor for measuring the pressure inside at least one combustion chamber of the engine, a second input interface receiving signals from the electronic fuel-injection control unit, and a calculation block to provide estimates of the amounts of nitrogen compounds and particulates in the emissions based on the pressure and other relevant signals to the engine operation.
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Ludwig et al.; “Measurement and Monitoring of Pressure Curves in Diesel Engines”, Published Jun. 2, 1993; Proceedings o the 1993 American Control Conference held on Jun. 2-4, 1993; TP4-17:20 vol. 2 of 3; pp. 1796-1800.
Corcione Giuseppe Esposito
La Rosa Manuela
Nicolosi Donata
Argenbright Tony M.
Hoang Johnny H.
Jorgenson Lisa K.
STMicroelectronics S.r.l.
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