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Method and apparatus for automatically monitoring fuel tank ullage in an automated fuel authorization program

  • US 9,856,129 B2
  • Filed: 03/12/2014
  • Issued: 01/02/2018
  • Est. Priority Date: 10/18/2010
  • Status: Active Grant
First Claim
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1. A method for administering a fuel authorization program, the method comprising the steps of:

  • (a) automatically sending, by a vehicle fuel authorization processor at an enrolled vehicle using at least one of a vehicle radiofrequency (RF) transmitter and a vehicle directional infrared (IR) transmitter over at least one of an RF data link and an IR data link, a fuel authorization request to a vendor fuel authorization processor at a fuel vendor, by the vehicle fuel authorization processor automatically implementing the steps of;

    (i) obtaining a vehicle fuel tank reading from a fuel tank sensor at the vehicle(ii) determining an amount of fuel required to fill the vehicle fuel tank using the vehicle fuel tank reading(iii) retrieving vehicle fuel authorization credentials from a memory at the vehicle;

    (iv) communicating, over the at least one of an RF data link and an IR data link, the determined amount of fuel required to fill the vehicle fuel tank and the vehicle fuel authorization credentials to the vendor fuel authorization processor;

    (b) automatically analyzing, by the vendor fuel authorization processor, the vehicle fuel authorization credentials to determine that the vehicle is enrolled in the fuel authorization program and to determine that the vehicle is authorized to receive fuel;

    (c) after determining the vehicle is enrolled in the fuel authorization program and is authorized to receive fuel, automatically, by the vendor fuel authorization processor, enabling fuel delivery at a fuel pump the vehicle is proximate to in a quantity equal to the determined amount of fuel required to fill the vehicle fuel tank(d) automatically determining, by the vendor fuel authorization processor, that fuel delivery was terminated early at the fuel pump to prevent spillage;

    (e) in response to the determination that fuel delivery was terminated early to prevent spillage, automatically sending, by the vendor fuel authorization processor over at least one of an RF data link and an IR data link to the vehicle fuel authorization processor, a communication or indicating that less fuel was delivered than was requested, and including at least one of a percentage difference of the determined amount of fuel required to fill the vehicle fuel tank, a volumetric quantity of fuel actually delivered, or a volumetric quantity of fuel not actually delivered;

    (f) in response to receiving the communication from the fuel vendor authorization processor, automatically computing, by the vehicle fuel authorization processor, a calibration factor, the calibration factor being at least one of the received percentage difference expressed as a percentage, the received percentage difference expressed as a volumetric quantity, the volumetric quantity of fuel not actually delivered, the volumetric quantity of fuel not actually delivered expressed as a percentage of the determined amount of fuel required to fill the vehicle fuel tank, the difference between the determined amount of fuel required to fill the vehicle fuel tank and the volumetric quantity of fuel actually delivered expressed as a volumetric quantity;

    a percentage difference between the determined amount of fuel required to fill the vehicle fuel tank and the volumetric quantity of fuel actually delivered,(g) storing, by the vehicle fuel authorization processor, the calibration factor in a memory at the vehicle;

    (h) and to applying, by the vehicle fuel authorization processor, this calibration factor to subsequent fuel tank readings when subsequently determining amounts of fuel required to fill the vehicle fuel tank so that subsequent fuel authorization requests will be more accurate.

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