Method of and device for controlling after-start enrichment of i

Details Method of and device for controlling after-start enrichment of i Method of and device for controlling after-start enrichment of i

1984-07-02

1985-12-03

Dolinar, Andrew M.

Internal-combustion engines

Charge forming device

Fuel injection system

F02D 502

Patent

active

045560366

ABSTRACT:
Injection control pulses after starting the engine are multiplied by a fuel enrichment factor A.sub.1 depending on operational temperature and rotary speed of the engine. The time derivative -A/t of the enrichment factor is kept constant up to a predetermined rotary speed limit. When the speed limit is exceeded, the time derivative increases proportionally with the rotary speed increase. In this manner faster warm-up of the engine due to higher speeds influences the fuel enrichment phase.

REFERENCES:
patent: 4239022 (1980-12-01), Drews et al.
patent: 4432325 (1984-02-01), Auracher et al.
patent: 4444173 (1984-04-01), Yamato et al.

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