Diagnostic method for a refueling event detection system
AssigneeDelphi Technologies, Inc.
InventorsKENNETH M. SIMPSON, PAULO F.R. TRANQUILLI
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Abstract
A method for diagnosing the performance of a refueling event detection system for a vehicle is provided. The method includes the steps of a) determining a fuel change amount based on a difference of an indicated fuel amount and a previously indicated fuel amount, b) determining a consumed amount of fuel consumed by the engine since a prior refueling event was detected, and c) diagnosing the performance of the refueling event detection system based on the consumed amount and the fuel change amount.
Claims7
A method for diagnosing the performance of a refueling event detection system for a vehicle equipped with an engine, said method comprising:
- determining a fuel change amount based on a difference of an indicated fuel amount and a previously indicated fuel amount;
- determining a consumed amount of fuel consumed by the engine since a prior refueling event was detected;
- and
- diagnosing the performance of the refueling event detection system based on the consumed amount and the fuel change amount, wherein the step of diagnosing includes
- determining an indicated refueling amount based on the fuel change amount if a refueling event is detected;
- determining a refueling ratio based on the consumed amount and the indicated refueling amount;
- and
- determining a blended ratio based on the refueling ratio and a historic ratio.
(canceled)
Dependencies are inferred from the claim text.