Method and apparatus for detecting crankshaft angular position

Electricity: measuring and testing – Magnetic – Displacement

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32420722, 32420721, G01B 714, G01B 730, G01B 700, F02P 7067

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055700160

ABSTRACT:
A method and apparatus for detecting an engine crankshaft angular position which provides for fast starting of the engine. A target wheel and sensor combination generate an analog signal which is convened into a 24 bit digital output which repeats every 360.degree. rotation of the crankshaft. Each bit represents a particular angular position of the crankshaft. Any 6 sequential bits in the repeating 24 bit digital output sequence form a unique pattern. By monitoring the first six bits generated (90.degree. of crankshaft rotation) during startup, a crankshaft angular position can be determined, thereby enabling fast starting of the engine.

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