Ignition timing control method for internal combustion engines

Details Ignition timing control method for internal combustion engines Ignition timing control method for internal combustion engines

1986-01-15

1987-10-27

Argenbright, Tony M.

Internal-combustion engines

Combustion chamber means combined with air-fuel mixture...

123416, F02P 514, F02P 515

Patent

active

047022116

ABSTRACT:
An ignition timing control method for an internal combustion engine, which controls the ignition timing, on the basis of a basic ignition timing value determined as a function of operating parameters of the engine. When a detected parameter value indicative of engine temperature is lower than a predetermined value, a correction variable for the basic ignition timing value is determined based upon detected parameter values indicative of engine temperature and engine load magnitude, to correct the basic ignition timing value thereby. Ignition of the mixture is effected at a timing according to the corrected basic ignition timing value. Preferably, when detected engine rotational speed is lower than a predetermined value lower than the engine idling speed or when it is higher than a predetermined high rotational speed value, the correction of the basic ignition timing value by the correction variable is prohibited.

REFERENCES:
patent: 4177776 (1979-12-01), Kauai et al.
patent: 4419974 (1983-12-01), Nagase et al.
patent: 4421085 (1983-12-01), Nagase et al.

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