Engine crankshaft position recognition and tracking method...

Details Engine crankshaft position recognition and tracking method... Engine crankshaft position recognition and tracking method...

2006-07-11

2006-07-11

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

C702S033000, C702S150000

Reexamination Certificate

active

07076361

ABSTRACT:
A method and system for providing data representing crankshaft position. For each rising edge of the crankshaft signal, a position value and a factor value are stored in a look-up table. Cam and crankshaft signals are used to locate an initial crankshaft position. This initial position value is used as a pointer to the look-up table, and incremented with each rising pulse of the crankshaft signal. Data from the table is used to extrapolate crankshaft position from crankshaft signal values to a desired resolution in degree angle units.

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