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Method and system for tank refilling using active fueling speed control

  • US 9,605,804 B2
  • Filed: 05/29/2015
  • Issued: 03/28/2017
  • Est. Priority Date: 04/21/2010
  • Status: Active Grant
First Claim
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1. A method of filling a compressed gas tank, comprising:

  • determining a fill time (tfinal) predicted to produce a gas final temperature (Tfinal) based on one or more coefficients selected from a lookup table, mass average dispenser gas temperature for control (MATC), and alpha;

    determining a pressure ramp rate (RR);

    delivering gas to the compressed gas tank at a control pressure based on the pressure ramp rate (RR) during a first portion of filling the compressed gas tank;

    determining a mass average enthalpy (MAE) and density; and

    delivering gas to the compressed gas tank at a target ending fueling pressure based on the density and the gas final temperature during a second portion of filling the compressed gas tank.

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