Independent timing retard for engine speed limiting

Details Independent timing retard for engine speed limiting Independent timing retard for engine speed limiting

2006-05-09

2006-05-09

Solis, Erick (Department: 3747)

Internal-combustion engines

Engine speed regulator

Engine speed reduction by partial or complete omission of...

C123S351000, C123S406590

Reexamination Certificate

active

07040282

ABSTRACT:
A method and system for operating an engine wherein ignition of the engine is activated according to a predetermined timing schedule that references engine speed, and the ignition is suppressed above a predetermined engine speed threshold to allow engine speed to fall below the predetermined engine speed threshold. Thereafter, ignition is reactivated according to timing that is retarded relative to the predetermined timing schedule for a predetermined number of engine revolutions substantially when the engine speed has fallen below the predetermined engine speed threshold, thereby mitigating undesirable spikes in combustion chamber maximum pressure.

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patent: 2003/0015175 (2003-01-01), Andersson et al.

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