Method and system for operating an internal combustion engine at

Details Method and system for operating an internal combustion engine at Method and system for operating an internal combustion engine at

1981-10-22

1984-01-31

Dolinar, Andrew M.

Internal-combustion engines

Charge forming device

Fuel injection system

123436, 364158, 36443105, F02P 508

Patent

active

044283423

ABSTRACT:
Spark ignition timing of an internal combustion engine is oscillated on each side of a variable reference setting by varying it at stepwisely variable amounts during positive and negative swings and the resultant engine speed is detected in at least three successive phases. The detected engine speed values are compared one against each other to determine whether they satisfy one of two specified conditions. The variable reference is adjusted in a direction toward an optimum position depending on which one of the conditions is satisfied.

REFERENCES:
patent: 3142967 (1964-08-01), Schweitzer
patent: 4026251 (1977-05-01), Schweitzer et al.
patent: 4130863 (1978-12-01), Schweitzer et al.
patent: 4236214 (1980-11-01), Sasayama
patent: 4306284 (1981-12-01), Malcolm
patent: 4322800 (1982-03-01), Hisegawa et al.
patent: 4379333 (1983-04-01), Ninomiya et al.

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