Method of and system for controlling ignition timing in internal

Details Method of and system for controlling ignition timing in internal Method of and system for controlling ignition timing in internal

1984-05-04

1985-08-06

Nelli, Raymond A.

Internal-combustion engines

Charge forming device

Fuel injection system

123432, 123415, 123308, F02P 100, F02P 504, F02B 3100

Patent

active

045329028

ABSTRACT:
A method and a system is disclosed for controlling ignition timing in an internal combustion engine having a throttle valve and an intake air control valve independent of said throttle valve. Ignition timing is controlled in synchronism with the on-off operation of the intake air control valve. A change in the ignition timing is delayed by a predetermined period of time corresponding to a delay time in completing the on-off operation of the intake air control valve so that the optimum ignition timing is obtained at the proper time.

REFERENCES:
patent: 4246874 (1981-01-01), Nakagawa et al.
patent: 4271795 (1981-06-01), Nakagawa et al.
patent: 4306535 (1981-12-01), Fitzner
patent: 4318387 (1982-03-01), Fitzner
patent: 4340021 (1982-07-01), Oshiage et al.
patent: 4380981 (1983-04-01), Enoshima et al.
patent: 4408583 (1983-10-01), Merrick
patent: 4448179 (1984-05-01), Foster

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