Data processing: vehicles – navigation – and relative location – Vehicle control – guidance – operation – or indication – With indicator or control of power plant
Reexamination Certificate
2005-06-28
2005-06-28
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
C701S111000, C073S035010, C073S035030, C073S035040, C073S035050, C123S406160, C123S406210, C123S406340, C123S406390
Reexamination Certificate
active
06912460
ABSTRACT:
The method for knock detection includes establishing that knock is occurring in the internal combustion engine when the amplified knock signal exceeds a predetermined reference level in a predetermined manner. The reference level is determined on the basis of individual cylinders and the increase in the reference level is limited when a new reference level leaves a predetermined reference level range or the gradient of the sound increase exceeds a predetermined threshold value. For determination of the reference level range and/or the threshold for the gradient average values of the signals originating from the sound of other cylinders are considered.
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Haeming Werner
Heinstein Axel
Kluth Carsten
Sauler Juergen
Torno Oskar
Argenbright Tony M.
Hoang Johnny H.
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