FUEL CONSUMPTION DISPLAY APPARATUS AND FUEL CONSUMPTION DISPLAY METHOD OF FUEL CELL ELECTRIC VEHICLE

PROBLEM TO BE SOLVED: To properly inform a vehicle driver of information on a fuel consumption of a fuel cell electric vehicle. SOLUTION: A controller 22 calculates the zonal vehicle efficiency based on a hydrogen consumption (a zonal hydrogen consumption) in a fuel cell 13 at a first relatively long time interval, and on energy (zonal running energy) contributing to running of the fuel cell electric vehicle 10, and then calculates a hydrogen consumption (an instantaneous hydrogen consumption) of the fuel cell 13 during a second time interval by dividing energy (instantaneous running energy) contributing to running of the fuel cell electric vehicle 10 at the second relatively short time interval by the zonal vehicle efficiency. The controller 22 calculates an instantaneous fuel consumption by dividing a running distance (an instantaneous running distance) during the second time interval by the instantaneous hydrogen consumption, and displays a predetermined image on a display screen of a display apparatus 23 in response to the magnitude of an instantaneous fuel consumption rate as a ratio of the instantaneous fuel consumption to an ideal fuel consumption in running the fuel cell electric vehicle 10. COPYRIGHT: (C)2007,JPO&INPIT