Engine control system
AssigneeSanshin Kogyo Kabushiki Kaisha
InventorKazuhiro Nakamura
Life of this patent
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Abstract
Several embodiments of engine control systems that require a throttle position signal. The throttle position signal is derived from a computation made utilizing information derived from the linkage system that interconnects the throttle and spark timing controls.
Claims21
An engine control comprising an internal combustion engine having at least one combustion chamber, an induction system for delivering a charge to said combustion chamber, a throttle valve in said induction system for controlling the flow therethrough, a spark plug for firing a charge in said combustion chamber, an engine output shaft driven by the combustion in said combustion chamber, an ignition system for firing said spark plug, said ignition system including a pulser coil associated with said engine output shaft for providing a triggering pulse for said ignition system, a spark control means comprising a linkage system for moving said pulser coil about the axis of rotation of said output shaft in response to the position of said throttle valve, and means for computing the position of said throttle valve from the degree of rotation of said pulser coil about said axis.
An engine control method for an internal combustion engine having at least one combustion chamber, an induction system for delivering a charge to said combustion chamber, a throttle valve in said induction system for controlling the flow therethrough, a spark plug for firing a charge in said combustion chamber, an engine output shaft driven by the combustion in said combustion chamber, an ignition system for firing said spark plug, said ignition system including a pulser coil associated with said engine output shaft for providing a triggering pulse for said ignition system, a spark control means comprising a linkage system for moving said pulser coil about the axis of rotation of said output shaft in response to the position of said throttle valve, said method comprising the steps of computing the position of said throttle valve from the degree of rotation of said pulser coil about said axis and using the computed position for engine control.
Dependencies are inferred from the claim text.