Internal-combustion engines – Charge forming device – Fuel injection system
Patent
1984-06-05
1985-05-28
Cox, Ronald B.
Internal-combustion engines
Charge forming device
Fuel injection system
123612, 123618, 123472, F02P 504
Patent
active
045193622
ABSTRACT:
A rotational position detecting apparatus for an internal combustion engine comprises a first and a second signal generator each thereof having a signal rotor rotating in synchronism with the rotation of the engine, a first and a second waveform reshaping circuit and a signal processing circuit. Engine rotational angle signals produced by the first signal generator and engine cylinder reference angular position signals and a specified cylinder angular position signal produced by the second signal generator are reshaped through the first and second waveform reshaping circuits, respectively, and both output signals from the first and second waveform reshaping circuits are supplied to the signal processing circuit. The signal processing circuit separates the reference signals and the cylinder discrimination signal from the output signals of the second waveform reshaping circuit and outputs the separated signals along with the angle signals produced by the first waveform reshaping circuit.
This rotational position detecting apparatus for internal combustion engines is featured in that it is simple in construction and small in size and its operation is hardly susceptible to interference caused by radio noise.
REFERENCES:
patent: 3881453 (1975-05-01), Harper
patent: 3916863 (1975-11-01), Hohne
patent: 4352345 (1982-10-01), Menard
patent: 4365602 (1982-12-01), Stiller
patent: 4407258 (1983-10-01), Ruf
patent: 4442822 (1984-04-01), Kondo
patent: 4457286 (1984-07-01), Katayama
Kovener, Richard W., "A Low Cost Electronic Ignition Control System with a Four Bit Micro Controller", SAE Technical Paper Series No. 820,256, Feb. 1982.
Arakawa Miyao
Inoue Shingo
Ohyama Hideo
Sato Masahiro
Takenaka Akihiko
Cox Ronald B.
Nippondenso Co. Ltd.
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