Method for controlling ignition timing of an internal combustion

Details Method for controlling ignition timing of an internal combustion Method for controlling ignition timing of an internal combustion

1990-05-04

1991-08-13

Argenbright, Tony M.

Internal-combustion engines

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

F02P 514

Patent

active

050387367

ABSTRACT:
An ignition timing controlling system is provided for calculating an ignition timing based on a basic ignition timing, a learning correcting quantity including a large correcting quantity and a small correcting quantity, and a feedback correcting quantity. In response to an occurrence of knocking, a large retard value is produced. When the large retard value exceeds a reference value, the learning correcting quantity of the small correcting quantity is changed to the learning correcting quantity of the large correcting quantity.

REFERENCES:
patent: 4620518 (1986-11-01), Nagai
patent: 4640249 (1987-02-01), Kawamura et al.
patent: 4694801 (1987-09-01), Nagai
patent: 4819603 (1989-04-01), Morita et al.

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