Electronic arrangement for idling stabilization

Details Electronic arrangement for idling stabilization Electronic arrangement for idling stabilization

1981-07-01

1983-06-28

Argenbright, Tony M.

Internal-combustion engines

Engine speed regulator

Idle speed control

123418, F02D 504

Patent

active

043899897

ABSTRACT:
An electronic arrangement for idling stabilization between a signal transmitter for ignition spark formation and an ignition device for internal combustion engines, by means of which, at a dropping engine rotational speed, the ignition timepoint is advanced below a first engine rotational speed, in which there presently is retarded a pulse obtained from the signal transmitter and, with regard to the contemplated unretarded pulse sequence, is transmitted as an advanced signal to the ignition device whereby the unretarded pulses are emitted externally of the stabilization range intermediate the first and a second lower engine rotational speed. The delay device essentially consists of a sawtooth generator which is triggered by a side of a pulse emitted from the signal transmitter, which is connected at the output thereof with a storage, as well as with an amplifier having a threshold switch, whose outputs are conducted to a comparator which is so correlated that, upon the exceeding of a value stored in the storage, a signal is emitted at the amplifier output which, after further processing, is conducted to the ignition device. Thereby, the operational behavior of simple constructional components and circuit groups is employed so as to achieve, at a falling engine rotational speed within the stabilization range, initially a constant delay period and thereafter an increasing delay period at a constant advance ignition.

REFERENCES:
patent: 4111174 (1978-09-01), Fitzner et al.
patent: 4244336 (1981-01-01), Fitzner
patent: 4328775 (1982-05-01), Ironside
patent: 4338899 (1982-07-01), Geiger et al.

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