Hydrogen filling apparatus

Abstract

A hydrogen filling apparatus includes a measurer configured to measure a filling amount of hydrogen gas filled in a fuel tank, using a flowmeter, an acquirer configured to acquire information of a pressure and a temperature of the fuel tank, a filling amount calculator configured to calculate a corrected capacity of the fuel tank using an expansion rate of the fuel tank and a pressure ratio which is the acquired pressure relative to a standard pressure of the fuel tank, and to calculate the filling amount of the hydrogen gas filled from the measurer into the fuel tank based on the acquired pressure and temperature and the corrected capacity of the fuel tank, and a determiner structured to determine presence or absence of a failure of the flowmeter using an error value between the filling amount measured using the flowmeter and the calculated filling amount.

Dependencies are inferred from the claim text.