Patent ID: 8771890

Claim:
A fuel supply control system for a fuel cell, controlling the temperature of the fuel cell to be within a predetermined range, comprising: a first thermal meter detecting a system temperature of a fuel unit; a fuel supply device comprising a fuel tank storing highly concentrated fuel and a fuel deliver device delivering the fuel from the fuel tank to the fuel unit at a non-zero delivery velocity during operation of the fuel cell, wherein the delivery velocity is by default a non-zero predetermined fuel supply velocity; and a controller programmed to calculate a difference between a predetermined temperature and the system temperature of the fuel unit, and to adjust the delivery velocity to a non-zero first velocity according to the temperature difference, wherein the predetermined temperature is a temperature at which the fuel cell operates at optimum; wherein the predetermined fuel supply velocity is one to seven times a fuel supply velocity required by the fuel cell to generate a current; wherein the first velocity is generated by decreasing the predetermined fuel supply velocity when the temperature difference exceeds an upper limit, and by increasing the predetermined fuel supply velocity when the temperature difference is lower than a lower limit.