Ignition apparatus

Details Ignition apparatus Ignition apparatus

1987-08-25

1988-12-13

Dolinar, Andrew M.

Internal-combustion engines

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

123423, 123424, F02P 5145

Patent

active

047902809

ABSTRACT:
An ignition apparatus has an electrically controlled spark advance mechanism. It includes first ignition signal output circuit to output a first ignition timing signal with a predetermined spark advance synchronously with engine rotation, a second ignition signal output circuit to output for trolling a second ignition timing signal delayed by a predetermined crankshaft angle from the first ignition timing signal, a spark advance operating circuit to perform an arithmetic operation based on the first ignition timing signal and to output a third ignition timing signal which advances or delays the ignition timing as engine speed increases or decreases, a first ignition timing setting circuit which uses the first ignition timing signal for ignition timing for a predetermined time after the start of the engine and which thereafter uses the second ignition timing signal; and a second ignition timing setting circuit which, when the engine is accelerated before the predetermined time elapses, uses the third ignition timing signal for ignition timing.

REFERENCES:
patent: 4442813 (1984-04-01), Nagase et al.
patent: 4570595 (1986-02-01), Andreasson
patent: 4633834 (1987-01-01), Takeuchi et al.

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