Signal transmission system between signal processor and ignitor

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123425, 307260, F02P 516, F02P 900

Patent

active

047363231

ABSTRACT:
A signal transmission system for transmitting, in particular, an ignition timing correction signal in an ignition timing control system for an internal combustion engine includes an ignitor for producing an ignition timing signal in response to an ignition signal from a distributor, and the ignition timing signal is further corrected by the ignition timing correction signal calculated in a computer based on engine operating conditions sensed by sensors. The computer includes a voltage-current converting circuit which converts the ignition timing correction signal in the form of a voltage signal into a current signal corresponding thereto and supplies the current signal to the ignitor through a signal line connecting between the computer and the ignitor. The ignitor includes a current-voltage converting circuit to convert the current signal from the computer into a voltage signal corresponding to the current signal which indicates the correction of the ignition timing.

REFERENCES:
patent: 4307691 (1981-12-01), Nagae et al.
patent: 4382429 (1983-05-01), Enoshima et al.
patent: 4382430 (1983-05-01), Iwasaki
patent: 4409937 (1983-10-01), Asano
patent: 4430624 (1984-02-01), Newton

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