| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a gaseous fuel residual quantity indicating display which is hard to receive influence of temperature change and indicates accurate usable quantity when only a small quantity remains. <P>SOLUTION: A temperature sensor 8 and a pressure sensor 9 detect temperature T and pressure P of a hydrogen tank 5 respectively. A controller 11 calculates pressure type meter indication value H1 of residual quantity in the hydrogen tank 5 according to pressure P and calculates weight type meter indication value H2 of residual quantity in the hydrogen tank 5 according to pressure P and temperature T. Next, the controller 11 compares the pressure P and a predetermined value P0, indicates weight type meter indication value H2 on a fuel gage 10 when the pressure P is equal to or greater than the predetermined value P0 and indicates a pressure type meter indication value H1 on the fuel gage 10 when the pressure P is less than the predetermined value P0. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
