Patent ID: 8663862
Filing Date: 2014-03-04
Classification: B60L,H01M,H02M,Y02E,Y02T

Abstract:
1. A fuel cell system comprising: a fuel cell that generates electric power through an electrochemical reaction between a fuel gas and an oxidant gas; a voltage increasing converter that increases a voltage of the electric power from the fuel cell; and a control unit programmed to control an output of the voltage increasing converter; wherein the voltage increasing converter further comprises a plurality of converter parts each having a reactor; wherein at least one of the plurality of converter parts has a temperature sensor that detects a temperature of a reactor of the at least one of the plurality of converter parts; wherein at least one of the plurality of converter parts does not have a temperature sensor; wherein the control unit is further programmed to limit outputs of the converter parts at a predetermined rate of change; wherein the control unit is further programmed to start limiting the output of the at least one of the plurality of converter parts with the temperature sensor when the temperature detected by the temperature sensor reaches a limitation starting temperature obtained based on a heat-resistant temperature of the reactor; and wherein the control unit is further programmed to start limiting the output of the at least one of the plurality of converter parts without a temperature sensor when the temperature detected by the temperature sensor reaches a limitation starting temperature obtained based on an allowable temperature obtained by subtracting a characteristic-variation temperature of the reactor from the heat-resistant temperature of the reactor.