Patent ID: 6691810
Filing Date: 2004-02-17
Classification: B60L,H01M,Y02E,Y02T

Abstract:
An apparatus for controlling a fuel cell vehicle, comprising:motor driving means for outputting electric energy depending on a given torque command to a propulsive motor; a fuel cell for use as a power supply for said motor driving means; an electric double layer capacitor connected parallel to said fuel cell, for being charged by said fuel cell and discharged to supplement a shortage of an amount of electric energy generated by said fuel cell; upper limit electric energy recognizing means for detecting an operating state of said fuel cell and recognizing an upper limit amount of electric energy generated by said fuel cell depending on the detected operating state; upper limit discharged electric energy recognizing means for recognizing an upper limit amount of discharged electric energy representing an electric energy discharged from said electric double layer capacitor when the amount of electric energy generated by said fuel cell reaches said upper limit amount of generated electric energy; upper limit total electric energy recognizing means for recognizing an upper limit amount of total electric energy representing an upper limit amount of total electric energy which can be outputted from said fuel cell and said electric double layer capacitor, depending on said upper limit amount of discharged electric energy and said upper limit amount of generated electric energy; and torque command limiting means for limiting said torque command to at most an upper limit of torque depending on said upper limit amount of total electric energy.