Method for detecting injection events in a piezoelectric actuated fuel injector
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United States of America Patent
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Jul 16, 2002
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N/A
app pub date -
Jul 11, 2000
filing date -
Feb 11, 2000
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Abstract
A method is provided for detecting injection events in a piezoelectric actuated fuel injector. The method comprises the steps of: (a) providing a piezoelectric element for actuating the injector valve; (b) applying a voltage to the piezoelectric element, thereby actuating the injector valve; and (c) monitoring at least one of the voltage or current associated with the piezoelectric element, wherein changes in voltage or current are indicative of injection events in the fuel injector.
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