Method and apparatus for ignition system spark timing control du

Details Method and apparatus for ignition system spark timing control du Method and apparatus for ignition system spark timing control du

1983-06-17

1984-05-01

Nelli, Raymond A.

Internal-combustion engines

Charge forming device

Fuel injection system

123417, 123418, 36443107, F02D 500, F02B 300

Patent

active

044454775

ABSTRACT:
A method and apparatus for controlling ignition system spark timing. It is detected whether the engine is in operation with no load or in the remaining operating conditions. A digital processor is provided which uses a mathematical formula or table during no load engine operation to find value of spark advance, which mathematical formula or table is distinct from a mathematical formula or table to be used during the remaining engine operating conditions to find value of spark advance.

REFERENCES:
patent: 3815560 (1974-06-01), Wahl et al.
patent: 3853103 (1974-12-01), Wahl et al.
patent: 3969614 (1976-07-01), Mayer et al.
patent: 4009699 (1977-03-01), Hetzler et al.
patent: 4015565 (1977-04-01), Aono et al.
patent: 4127091 (1978-11-01), Leichle 123416

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