Ignition coil control device for regulating the optimal conducti

Details Ignition coil control device for regulating the optimal conducti Ignition coil control device for regulating the optimal conducti

1981-10-29

1984-09-04

Lall, Parshotam S.

Internal-combustion engines

High tension ignition system

Having dwell control

123417, 123644, F02P 508

Patent

active

044690819

ABSTRACT:
An output stage of a calculator (2) has a transfer function of the form: tc=N.TSD+.epsilon. where .epsilon. is a small and known quantity; t.sub.c is the conduction time of the coil, N is a number of angular fractions or periods of an interpolation signal; and TSD is the period corresponding to one tooth on the starter gear. The device comprises measurement means (1, 32, 36) for measuring the time strictly necessary to obtain the required energy; means (6, 9, 13, 17) for generating signals at each fraction of the angular marking signal in order to obtain a time measurement of a counting window and means (21, 25, 29) for counting and memorizing during this window an interpolation signal of the angular resolution n times higher.

REFERENCES:
patent: 4127091 (1978-11-01), Leichle
patent: 4248195 (1981-02-01), Gorille
patent: 4298941 (1981-11-01), Furuhashi
patent: 4321580 (1982-03-01), Deleris
patent: 4324217 (1982-04-01), Ina et al.
patent: 4347570 (1982-08-01), Akiyama et al.

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