Title:
DEVICE FOR CONTROLLING DISPLAY OF REMAINING AMOUNT OF GAS, DEVICE FOR DISPLAYING REMAINING AMOUNT OF GAS, AND METHOD FOR CONTROLLING DISPLAY OF REMAINING AMOUNT OF GAS
Document Type and Number:
WIPO Patent Application WO/2009/054518
Kind Code:
A1
Abstract:
A device (100) for controlling the display of the remaining amount of gas has a
mass calculation section (112), a reference value setting section (114), and
a display control section (116). The mass calculation section (112) acquires
the pressure P and the temperature T of compressed hydrogen in a hydrogen tank
(10) and calculates the mass of the compressed hydrogen in the hydrogen tank (10).
The reference value setting section (114) sets, as a reference value, the mass
calculated by the mass calculation section (112) when charging of compressed
hydrogen gas into the hydrogen tank (10) is stopped due to predetermined conditions
being satisfied. The display control section (116) calculates the ratio of the
mass calculated by the mass calculation section (112) to the reference value,
and based on this ratio, the display control section (116) causes the remaining
amount of the compressed hydrogen in the hydrogen tank (10) to be displayed on
a display device (200). When compressed hydrogen is charged into the hydrogen
tank (10) until the filling is limited, the display of “FULL”
can be reliably displayed on the display device (200).
Inventors:
UMAYAHARA, Kenji (1 Toyota-cho, Toyota-sh, Aichi 71, 4718571, JP)
Application Number:
JP2008/069389
Publication Date:
April 30, 2009
Filing Date:
October 20, 2008
Export Citation:
Assignee:
TOYOTA JIDOSHA KABUSHIKI KAISHA (1 Toyota-cho, Toyota-shi Aichi, 71, 4718571, JP)
トヨタ自動車株式会社 (〒71 愛知県豊田市トヨタ町１番地 Aichi, 4718571, JP)
トヨタ自動車株式会社 (〒71 愛知県豊田市トヨタ町１番地 Aichi, 4718571, JP)
International Classes:
F17C13/02; F17C5/06; G01G17/04; H01M8/04
Attorney, Agent or Firm:
TOKKYO GYOMUHOJIN MEISEI INTERNATIONAL PATENT FIRM (Mitsui-Sumitomo Bank Bldg, 7th floor18-19, Nishiki 2-chome, Naka-ku,Nagoya-sh, Aichi 03, 4600003, JP)
Download PDF: