Method for detecting rotational speed

Details Method for detecting rotational speed Method for detecting rotational speed

2006-08-22

2006-08-22

Williams, Hezron (Department: 2856)

Data processing: measuring, calibrating, or testing

Calibration or correction system

Speed

C073S001370, C073S488000, C073S494000, C324S167000, C324S207250, C702S145000, C702S147000

Reexamination Certificate

active

07096136

ABSTRACT:
In a method for detecting rotational speed of an internal combustion engine (1), a sector wheel (4) which is driven by the internal combustion engine (1) is scanned, the run of a specific segment of the sector wheel is detected, the duration of said segment-run is measured and a rotational speed value is determined therefrom, the duration of the run a specific segment is re-measured, a relative variation between two consecutive segment-runs is determined and the rotational speed value is determined therefrom.

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