Patent attributes
The disclosure provides a gas filling method. The gas filling method includes the following steps: an effective heat mass calculation step, which uses the heat capacity of the piping and the detection value of the gas temperature sensor to calculate the value of the effective heat mass related to the temporary pressure loss caused by the piping before gas-filling is started; a pressure loss parameter calculation step, which uses the detection value of the pressure sensor when the flow rate of the gas in the piping changes to calculate the value of the pressure loss parameter related to the pressure loss caused by the piping after the gas-filling is started; and a filling condition changing step, which changes the filling condition into a condition that is defined based on the value of the pressure loss parameter and gas-filling is continued.
