Data processing: vehicles – navigation – and relative location – Vehicle control – guidance – operation – or indication – With indicator or control of power plant
Reexamination Certificate
2007-10-30
2007-10-30
Vo, Hieu T. (Department: 3747)
Data processing: vehicles, navigation, and relative location
Vehicle control, guidance, operation, or indication
With indicator or control of power plant
C701S051000, C701S054000, C060S605200
Reexamination Certificate
active
11363802
ABSTRACT:
Torque being produced by a turbocharged internal combustion engine (12) during acceleration under load is calculated by processing (34) a value for actual boost MAP and a value MAP_NOMINAL selected from a map (32) that contains data values for boost that would prevail during steady state engine operation at a respective speed with the engine developing a respective torque. The selection is made using engine speed N and estimated torque TQI_SP that possesses some inaccuracy due to some disparity between the data value for actual boost and the data value selected from the map. The selection yields a boost disparity value that is used along with the estimated torque to select from a torque map (36) a value for calculated torque that provides a better correlation with actual torque than does the estimated torque during acceleration.
REFERENCES:
patent: 6016459 (2000-01-01), Isaac et al.
patent: 6584391 (2003-06-01), Lack
patent: 6651432 (2003-11-01), Gray, Jr.
patent: 7047741 (2006-05-01), Gray, Jr.
Lack Adam C.
Rodriguez Rogelio
Askew Gerald W.
Calfa Jeffrey P.
International Engine Intellectual Property Company LLC
Vo Hieu T.
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