Magnetic encoder and sensor system for internal combustion engin

Details Magnetic encoder and sensor system for internal combustion engin Magnetic encoder and sensor system for internal combustion engin

1990-02-21

1992-03-17

Snow, Walter E.

Electricity: measuring and testing

Magnetic

Displacement

32420722, 32420725, 123617, G01B 714

Patent

active

050972090

ABSTRACT:
A high resolution sensor for internal combustion engines has symmetric and asymmetric magnetic encoders mounted on a support plate for synchronous rotation with the engine. Hall-effect sensor devices monitor the magnetic fields of the encoders and transmit signals to an Electronic Engine Control Unit. Ignition and fuel injection timing are deduced from the positions of the magnetic encoders. The encoders are magnetized on a fixture which establishes the size, strength, and location of each pole.

REFERENCES:
patent: 4551676 (1985-11-01), Amemiya et al.
patent: 4742811 (1988-05-01), Okada et al.

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