Patent ID: 7527112
Filing Date: 2009-05-05
Classification: B60H,H01M,H02J,Y02E,Y02T,Y10S

Abstract:
1. A fuel cell vehicle for being propelled by a propulsive motor, said fuel cell vehicle having an electric system in which a fuel cell and an electric storage device are connected in parallel to each other with respect to the propulsive motor and connected to the propulsive motor through a power converter, comprising: a DC-to-DC converter connected closer to the electric storage device than a junction where the fuel cell and the electric storage device are connected in parallel to each other; reactive gas supply means for supplying a reactive gas to said fuel cell; failure detecting means for detecting a failure of said DC-to-DC converter; response limiting means for limiting the response of electric power output from said fuel cell when said failure detecting means detects a failure of said DC-to-DC converter; and regenerative electric power limiting means for limiting regenerative electric power of said propulsive motor to a value equal to or smaller than a prescribed failure regenerative electric power limit value upon the failure of said DC-to-DC converter.