Ignition timing control device of an engine

Details Ignition timing control device of an engine Ignition timing control device of an engine

1997-10-21

1999-09-28

Solis, Erick R.

Internal-combustion engines

Spark ignition timing control

Electronic control

12340655, F02P 5145

Patent

active

059571101

ABSTRACT:
An ignition timing control device including a mass flow meter arranged in the intake passage. At the time engine warmup, at high load operation where the mass flow rate of the intake air is higher than the reference value, the ignition timing is made a basic ignition timing for engine warmup. As opposed to this, in medium load operation, where the mass flow rate of the intake air is lower than the reference value, the ignition timing is retarded from the basic ignition timing of engine warmup. When the atmospheric pressure falls, the reference value is lowered.

REFERENCES:
patent: 4307691 (1981-12-01), Nagae et al.
patent: 4494512 (1985-01-01), Kishi et al.
patent: 4526148 (1985-07-01), Narasaka et al.
patent: 4558674 (1985-12-01), Okado et al.
patent: 4590563 (1986-05-01), Matsumura et al.
patent: 5016590 (1991-05-01), Ohkumo

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