Method of electronically controlling fuel injection for internal

Details Method of electronically controlling fuel injection for internal Method of electronically controlling fuel injection for internal

1984-05-04

1985-04-02

Nelli, Raymond A.

Internal-combustion engines

Charge forming device

Fuel injection system

123493, 123494, F02B 300, F02B 3300

Patent

active

045080860

ABSTRACT:
Fuel is injected in synchronism with the crank angle. In addition, an engine acceleration state is detected from the second-order differential value of the intake-pipe pressure, and the quantity of the asynchronous fuel injection in which fuel is injected in asynchronism with the crank angle is increased in an early stage of acceleration but is decreased after the early stage of acceleration. Moreover, no asynchronous injection is carried out in a low engine speed region. It is thereby possible to obtain an optimum air-fuel ratio in accordance with the engine acceleration state.

REFERENCES:
patent: 4077364 (1978-03-01), Aoki
patent: 4399790 (1983-08-01), Ktaoka
patent: 4408588 (1983-10-01), Mausner
patent: 4416240 (1983-11-01), Matsuoka
patent: 4457283 (1984-07-01), Kubayashi et al.
patent: 4463732 (1984-08-01), Uoba et al.

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