Patent ID: 8069941
Filing Date: 2011-12-06
Classification: H01M,Y02E,Y02T,Y10S

Abstract:
1. A fuel cell vehicle having a fuel cell that generates direct current power by reaction between hydrogen and air, and a power converter that has a switching element and converts the direct current power generated by the fuel cell, comprising: a rectifier disposed between the fuel cell and the power converter that prevents current from flowing toward the fuel cell from the power converter; a voltage-adjusting device that adjusts a voltage between the rectifier and the power converter; a fuel cell current control unit for controlling the voltage-adjusting device to control current output from the fuel cell; and a stop and idle unit for stopping a supply of a reactive gas to the fuel cell, wherein, when the stop and idle unit is activated, the fuel cell current control unit reduces the voltage between the rectifier and the power converter, and wherein the fuel cell current control unit sets the lower limit of the voltage between the rectifier and the power converter to be not less than a minimum operating voltage of one of the power converter and the voltage-adjusting device.