Method of and circuit for analyzing output signals from a sensor

Details Method of and circuit for analyzing output signals from a sensor Method of and circuit for analyzing output signals from a sensor

1983-11-07

1986-01-14

Cox, Ronald B.

Internal-combustion engines

Charge forming device

Fuel injection system

123488, 123501, F02B 300

Patent

active

045639957

ABSTRACT:
A method for evaluating output signals of a sensor for measuring operational parameters of an internal combustion engine, utilizes characteristic wave forms of signal portions derived from a sensor. Threshold levels for setting the beginning and the end of an injection process are determined from threshold levels of an (n+m)th signal portion which are derived from a fraction of preceding nth signal. The device for carrying out this method includes a store for the peak value of the nth signal and a controlled discharging device which cooperates with a threshold switch and which is controlled by other parameters of the engine such as rotary speed.

REFERENCES:
patent: 4346586 (1982-08-01), Furrey
patent: 4370963 (1983-02-01), Iwata
patent: 4423621 (1984-01-01), Kenichi

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