Crank angle detecting system for an internal combustion engine
A crank angle detecting system for an internal combustion engine is described, comprising: means secured to the crankshaft having crankshaft marks, each mark representing a compression top dead center of a cylinder; means provided adjacent to the first decision means for detecting the crankshaft marks for producing a crankshaft signal when each crankshaft mark is detected; means secured to the camshaft having camshaft marks representing the cylinders, respectively; means provided adjacent to the second decision means for detecting the camshaft marks and for producing a cylinder signal when each respective camshaft mark is detected; means for detecting the number of the cylinder detected responsive to the cylinder signal and for producing a corresponding signal corresponding with the number of the cylinder; and means for discriminating a compression top dead center of the detected cylinder responsive to the crankshaft signal occurring after the corresponding signal so as to accurately detect the crank angle corresponding to the number of the cylinder of the plurality of cylinders.
- Assignee:
- Fuji Jukogyo Kabushiki Kaisha, Tokyo
- Patent Number(s):
- US 4827886
- OSTI ID:
- 5921382
- Resource Relation:
- Patent File Date: Filed date 14 Dec 1987
- Country of Publication:
- United States
- Language:
- English
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Crank angle detecting system for engines
Crank angle detecting system for engines