Patent ID: 8247123

Claim:
An electric power source control apparatus which controls an electric power source including a fuel cell, the electric power source including a heating portion, the electric power source control apparatus comprising: a controller that is configured to: receive an operation input signal from an outside of the electric power source, and decide a required output amount of electric power to be output by the electric power source, in accordance with the operation input signal; operate the electric power source in accordance with the decided required output amount of electric power; estimate a maximum amount of the electric power that is suppliable by the electric power source at a given time; and during a time in which at least some of the electric power is to be used for the heating portion, reduce an amount of the electric power used for the heating portion only when the decided required output amount of the electric power is larger than the estimated maximum amount of the electric power that is suppliable by the electric power source, and the operation input signal is a signal for operating a drive circuit for driving a motor that is driven by the electric power source.