Method of triggering a determination of the composition of fuel in a flexible fueled vehicle
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United States of America Patent
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Mar 21, 2000
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N/A
app pub date -
Oct 29, 1997
filing date -
Oct 29, 1997
priority date (Note) -
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Abstract
A method is provided for triggering a system for learning the percent alcohol content of a fuel used in a motor vehicle capable of operating on more than one type of fuel. The fuel composition learning system is triggered each time fuel is added to the vehicle's fuel tank, each time the engine is started when the fuel volume in the fuel tank falls below a given value or if a fuel level sending unit malfunction has been detected. The fuel composition learning system is also triggered if an error is detected in the value of the learned percent alcohol content of the fuel.
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