Ethanol content rationality for a flexible fueled vehicle

Details Ethanol content rationality for a flexible fueled vehicle Ethanol content rationality for a flexible fueled vehicle

B - Operations, Transporting

60

K

B60K 15/00 (2006.01) F02B 69/02 (2006.01) F02B 75/12 (2006.01) F02D 19/08 (2006.01)

Patent

CA 2406292

A method for checking the accuracy of an oxygen sensor based determination of the alcohol content of the fuel of a flexible fueled vehicle. Following the addition of fuel to the flexible fueled vehicle two alcohol concentration possibilities are calculated. The two alcohol concentration possibilities are then used to calculate thresholds for the determining if the oxygen sensor based determination falls within the thresholds. If the oxygen sensor based determination does not fall within the thresholds then action is taken to counteract an inaccurate determination of alcohol concentration.

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