Patent ID: 7908049

Claim:
A fuel cell vehicle, comprising: a fuel cell; a plurality of electrical equipment, having at least an air compressor; an electrical storage device for storing electricity generated by the fuel cell; a low-level control device for controlling the plurality of electrical equipment; a relay unit that is provided in an electrical supply line connecting the low-level control device and the electrical storage device, and is driven based on a relay drive signal; a fuel cell temperature detection means for detecting a temperature of the fuel cell; a scavenging means, provided to the low-level control device, for driving the air compressor, and scavenging an interior of the fuel cell; a high-level control device, operating by electricity supplied from the electrical storage device, and having a microcomputer that determines, based on a temperature of a fuel cell detected at the fuel cell temperature detection means, whether or not to carry out scavenging by the scavenging means and that performs output of a drive signal based on the determination, and a drive signal output circuit that outputs a relay drive signal separately from the microcomputer; a periodic start-up means for periodically booting up the high-level control device during a period when the vehicle is stopped; a driving start-up means for initiating booting of the high-level control device when a key-switch installed in the vehicle is operated; and an electrical supply circuit including a start-up trigger determination circuit that determines whether a start-up trigger is the periodic start-up means or the driving start-up means, and a relay output switching circuit that selectively switches output of the relay drive signal between the microcomputer and the drive signal output circuit, wherein: the low-level control device and the high-level control device are configured to be separate, and the electrical supply circuit, at a time of startup by way of the periodic start-up means, waits for boot-up completion of the microcomputer, and in a case in which the microcomputer has determined to perform scavenging, a relay drive signal is output from the microcomputer and the relay unit is driven, and in a case in which the microcomputer determines not to perform scavenging, the relay drive signal is not input to the relay unit, and at a time of startup by way of the driving start-up means, does not wait for boot-up completion of the microcomputer, a relay drive signal is output from the drive signal output circuit, and after boot-up of the microcomputer has been completed, carries out opening-closing control of the relay unit based on a relay drive signal from the microcomputer.