Ignition timing controller for multi-cylinder engine

Details Ignition timing controller for multi-cylinder engine Ignition timing controller for multi-cylinder engine

1987-02-20

1988-08-02

Nelli, Raymond A.

Internal-combustion engines

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

123435, F02P 504

Patent

active

047608285

ABSTRACT:
An ignition timing control arrangement for an internal combustion engine having a plurality of cylinders. It is determined whether the same cylinder is knocking on successive engine cycles or whether different cylinders are knocking. The ignition timing of only a single cylinder is retarded to cause a non-knocking ignition if the same cylinder is knocking on successive engine cycles. However, ignition timing of all cylinders is retarded to minimize the knocking and maximize the engine torque if different cylinders are knocking.

REFERENCES:
patent: 4471739 (1984-09-01), Yoshida et al.
patent: 4558674 (1985-12-01), Okado et al.
patent: 4565171 (1986-01-01), Sugiura et al.
patent: 4574758 (1986-03-01), Yagley
patent: 4646522 (1987-03-01), Mamiya et al.

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