Electricity: measuring and testing – Magnetic – Displacement
Patent
1994-06-01
1996-10-29
Snow, Walter E.
Electricity: measuring and testing
Magnetic
Displacement
32420722, 32420721, G01B 714, G01B 730, G01B 700, F02P 7067
Patent
active
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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Lang, "Railroad Car Surveillance" IBM Technical Desclosure Bulletin vol., 4 No. 7 Dec. 1961 p. 32.
Bradley John R.
Butler, Jr. Raymond O.
Lequesne Bruno P. B.
Marks Anthony L.
Perry Thomas A.
General Motors Corporation
Gorbatoff Timothy G.
Snow Walter E.
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