Apparatus for controlling ignition timing in an internal combust

Details Apparatus for controlling ignition timing in an internal combust Apparatus for controlling ignition timing in an internal combust

1985-05-02

1988-01-05

Lall, Parshotam S.

Boots, shoes, and leggings

123416, 123418, 74852, F02P 508

Patent

active

047180145

ABSTRACT:
An ignition timing control apparatus for a spark ignition internal combustion engine for a vehicle having a manually operated transmission system. The apparatus includes an ignition control system for controlling ignition timing in such a manner that the timing is advanced when the engine speed drops due to engagement of the clutch of the transmission apparatus to begin the initial movement of the vehicle. The drop in the engine speed is sensed by detecting whether a second order difference value of the engine speed is lower than a reference value. This realizes quick control of the engine speed.

REFERENCES:
patent: 4232642 (1980-11-01), Yamaguchi et al.
patent: 4266447 (1981-05-01), Heess et al.
patent: 4436072 (1984-03-01), Suzuki et al.
patent: 4498438 (1985-02-01), Sato
patent: 4508075 (1985-04-01), Takao et al.
patent: 4590563 (1986-05-01), Matsumura et al.

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