Ignition timing control system for internal combustion engine

Details Ignition timing control system for internal combustion engine Ignition timing control system for internal combustion engine

1994-09-14

1995-09-12

Argenbright, Tony M.

Internal-combustion engines

Charge forming device

Fuel injection system

123406, F02P 515

Patent

active

054489750

ABSTRACT:
An ignition timing control system for an internal combustion engine which is equipped with an air-fuel ratio feedback control system for controlling an air-fuel ratio to a stoichiometric value. In the ignition timing control system, a basic ignition timing is corrected in accordance with an ignition timing correction amount which is calculated in accordance with a difference between an air-fuel ratio within in a combustion chamber for each engine cylinder and a stoichiometric air-fuel ratio. The air-fuel ratio within the combustion chamber is calculated from an air-fuel ratio feedback control parameter, taking account of a predetermined time lag characteristic of a variation of the air-fuel ratio relative to that of the control parameter.

REFERENCES:
patent: 4879656 (1989-11-01), Quigley et al.
"Patent Abstracts of Japan", Group M519, vol. 10, No. 277, Sep. 19, 1986, Abstract of JP-61-98970.
"Patent Abstracts of Japan", Group M402, vol. 9, No. 191, Aug. 7, 1985, Abstract of JP-60-56149.

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