Patent ID: 11946599
Assignee: AIR PRODUCTS AND CHEMICALS, INC.
Field: Mechanical elements (Mechanical engineering)
Classification: CPC F  Y | IPC F

Claim 0:
1. A method for hydrogen dispensing, comprising:
providing at least one sensor arranged and positioned to collect measurement data for filling a fuel tank of a vehicle with hydrogen fuel;
providing a computer device communicatively connected to the at least one sensor, the computer device having a processor connected to a non-transitory computer readable medium;
providing a display device communicatively connected to the computer device to display estimated time remaining indicia to indicate an estimated time remaining to fill the fuel tank based on an estimated time remaining determined by the computer device and update the displayed estimated time remaining indicia as dispensing of hydrogen fuel to the fuel tank occurs based on an updated estimated time remaining determined by the computer device;
the computer device configured to determine the estimated time remaining via an estimated time remaining process defined by code stored in the non-transitory computer readable medium based on sensor data received from the at least one sensor; and
the computer device configured to determine the updated estimated time remaining based on the sensor data received from the at least one sensor while the fuel tank is being filled with the hydrogen fuel via an updated estimated time remaining process defined by code stored in the non-transitory computer readable medium;
wherein the estimated time remaining process comprises one of:
(a) End Pressure=0.1227*(−0.0266*(35−StartP) {circumflex over ( )}2+2.5891*(35−StartP))+32.313, where “StartP” is a starting pressure in Mega Pascals (M Pa) and End Pressure is an end pressure in MPa; and
(b) End Pressure=0.2409*(−0.0149*(70−StartP) {circumflex over ( )}2+2.0222*(70−StartP))+64.435, where “StartP” is the starting pressure in MPa and End Pressure is the end pressure in MPa; and one of:
(c) Time remaining=End Pressure−Current Pressure/Ramp Rate, where the Ramp Rate is a rate of an increase in pressure measured at the fuel tank in MPa; and
(d) Pressure Remaining=End Pressure−Current Pressure.