Electronic control system for internal combustion engines

Details Electronic control system for internal combustion engines Electronic control system for internal combustion engines

1981-11-06

1984-02-21

Cox, Ronald B.

Internal-combustion engines

Charge forming device

Fuel injection system

123179G, 123424, F02N 1700, F02P 504

Patent

active

044323255

ABSTRACT:
An electronic control system for internal combustion engines which has signal generator circuits for the fuel metering and for the ignition. During starting, especially in the case of cold starting, three different phases are provided for controlling the injected fuel quantity and for regulating the fuel quantity downward; furthermore, the ignition angle is adjusted in accordance with temperature and rpm. In terms of the fuel metering, the boundary between the first and second phase is dependent on the rpm or on a maximum total number of revolution cycles, and the end of the second phase is predetermined by a minimum metering signal which is dependent on temperature. In the ignition system, there is an increasing adjustment toward "early" approximately in the rpm range between 200 and 600 revolutions per minute as well as an increasing adjustment toward "late" as the temperature increases.

REFERENCES:
patent: 3923031 (1975-12-01), Keranen
patent: 4069795 (1978-01-01), Long
patent: 4114570 (1978-09-01), Marchak
patent: 4137871 (1979-02-01), Martel
patent: 4148282 (1979-04-01), Grassle
patent: 4184460 (1980-01-01), Harada
patent: 4205635 (1980-06-01), Kirn
patent: 4239022 (1980-12-01), Drews

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