Dynamic ignition energy control

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United States of America Patent

PATENT NO 11015568
SERIAL NO

16429757

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Abstract

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A method for controlling the ignition energy of a sparkplug electrode of an ignition system comprises: providing a base current (Ibase) and a base duration (Dbase) which corresponds to the current and duration, respectively, of a physical model at a fixed engine operating point; multiplying the base current (Ibase) and the base duration (Dbase) with a sparkplug state indicator (SSI) based correction factor and with an engine operating state (EOS) based factor for achieving a final global current (Iglo) and a final global duration (Dglo), respectively; and communicating the final global current (Iglo) and the final global duration (Dglo) to a control unit for controlling the ignition energy and ignition duration of the sparkplug electrode. Further executing real-time energy control based on misfire flag status and, in the end, making sure that the optimum energy is into application by realizing optimum energy tests.

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Patent Owner(s)

Patent OwnerAddress
CATERPILLAR ENERGY SOLUTIONS GMBH68167 MANNHEIM

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Shah, Darshit Mannheim, DE 10 9

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