Data processing: vehicles – navigation – and relative location – Vehicle control – guidance – operation – or indication – With indicator or control of power plant
Reexamination Certificate
2007-12-11
2007-12-11
Wolfe, Willis R. (Department: 3747)
Data processing: vehicles, navigation, and relative location
Vehicle control, guidance, operation, or indication
With indicator or control of power plant
C073S116070
Reexamination Certificate
active
11472457
ABSTRACT:
In a method for diagnosing a charge cycle valve stroke adjusting system of an internal-combustion engine having at least one exhaust gas sensor which supplies an output signal continuously varying with an exhaust gas constituent, the spread width of the output signal is determined, and compared with a reference value. Defects of the valve stroke adjusting system are detected on the basis of the comparison.
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“Automotive Handbook”, 23rdEdition (ISBN 3-528-03876-4) under the name “Broadband Sensor” on p. 524.
Melzig Thomas
Nagel Nils
Schwarzenthal Dietmar
Crowell & Moring LLP
Dr. Ing. h.c.F. Porsche Aktiengesellschaft
Hoang Johnny H.
Wolfe Willis R.
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