Internal-combustion engines – Spark ignition timing control – Electronic control
Reexamination Certificate
2006-09-28
2008-10-07
Wolfe, Jr., Willis R (Department: 3747)
Internal-combustion engines
Spark ignition timing control
Electronic control
C123S631000
Reexamination Certificate
active
07431014
ABSTRACT:
An internal combustion engine performs an ignition timing control by an electronic control in accordance with a pulse signal from a pulser. The pulser generates a plurality of the pulser signals per one rotation of the internal combustion engine. An ignition timing control system calculates a reduction amount of a rotational speed of the internal combustion engine based on a plurality of the pulse signals immediately before performing an ignition in the internal combustion engine to determine whether the reduction amount produces ignition combustion kickback and performs a hard ignition or an ignition at an angle which is delayed more than the hard ignition.
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patent: 6973911 (2005-12-01), Yamashita
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Keating & Bennett LLP
Wolfe, Jr. Willis R
Yamaha Hatsudoki Kabushiki Kaisha
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