Data processing: vehicles – navigation – and relative location – Vehicle control – guidance – operation – or indication – With indicator or control of power plant
Reexamination Certificate
2007-09-11
2007-09-11
Kwon, John T. (Department: 3747)
Data processing: vehicles, navigation, and relative location
Vehicle control, guidance, operation, or indication
With indicator or control of power plant
C073S114220, C073S116070, C701S115000
Reexamination Certificate
active
11389375
ABSTRACT:
A process for determining the operating parameters of an injection device of a combustion engine includes the steps of: (a) selecting an injector to test; (b) calculating a mean velocity associated with a preceding injector arranged before the injector to test; c) applying to the injector to test an injection control signal including at least one test pulse having an adjustable parameter; (d) calculating a mean velocity associated with the injector to test; (e) calculating a difference between the mean velocity calculated in step d) and the mean velocity calculated in step b); (f) repeating steps b) to d) for at least another engine cycle, each time varying the parameter of the test pulse; (g) determining a value of the parameter of the test pulse for which the mean velocity difference exceeds a predetermined threshold; and storing the parameter value.
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Cochet Thierry
Meissonnier Guillaume
Delphi Technologies Inc.
Kwon John T.
Wood David P.
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