Ignition timing control system for automotive engine

Details Ignition timing control system for automotive engine Ignition timing control system for automotive engine

1989-06-28

1991-03-05

Argenbright, Tony M.

Internal-combustion engines

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

731182, 123423, F02P 515

Patent

active

049969595

ABSTRACT:
The quantity of air passing a throttle valve of an engine is calculated and a weight for a weighted average is derived from a map in accordance with throttle valve position and engine speed. Engine load data is obtained by adding a last engine load data at a last program and a quotient calculated by dividing the difference between the throttle passing air quantity per revolution of the engine and the last engine load data by a present weight provided at a present program. Ignition timing is derived from a memory storing a plurality of ignition timings arranged in accordance with present engine load data and present engine speed.

REFERENCES:
patent: 4425890 (1984-01-01), Yamaguchi
patent: 4498438 (1985-02-01), Sato
patent: 4502442 (1985-03-01), Takakuwa et al.
patent: 4886030 (1989-12-01), Oba et al.
patent: 4893244 (1990-01-01), Tang et al.

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