Title:
FLOWMETER FAILURE DETERMINATION METHOD AND HYDROGEN FILLING DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/256418
Kind Code:
A1
Abstract:
This flowmeter failure determination method comprises: a step for weighing the amount of hydrogen gas filling the fuel tank of an automobile by using a flowmeter (S114); a step for acquiring information about the pressure and temperature of the fuel tank (S102); a step for computing the amount of hydrogen gas filling the fuel tank on the basis of the acquired pressure and temperature and the volume of the fuel tank, with the expansion rate of the fuel tank accounted for (S104, S112); and a step for determining, using an error value between the weighed filling amount and the computed filling amount, whether the flowmeter has failed (S118).
Inventors:
SEIKE TADASHI (JP)
OSHIMA SHINJI (JP)
MINODA AI (JP)
TEZUKA TOSHIO (JP)
OSHIMA SHINJI (JP)
MINODA AI (JP)
TEZUKA TOSHIO (JP)
Application Number:
PCT/JP2021/022481
Publication Date:
December 23, 2021
Filing Date:
June 14, 2021
Export Citation:
Assignee:
ENEOS CORP (JP)
International Classes:
F17C13/02; F17C5/06; G01F1/00
Foreign References:
| JP2019207196A | 2019-12-05 | |||
| JP2013117301A | 2013-06-13 | |||
| JP2016200267A | 2016-12-01 | |||
| JP2010209980A | 2010-09-24 | |||
| US20170074707A1 | 2017-03-16 | |||
| JP2019207196A | 2019-12-05 |
Attorney, Agent or Firm:
MORISHITA Sakaki (JP)
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