A fuel cell vehicle includes a fuel cell, a gas supply unit, a friction brake system, a drive motor, an electric storage device, and a control unit configured to execute control of obtaining requested braking force with use of friction braking force and regenerative braking force and control of performing a scavenging process. When the fuel cell vehicle is in braking with the friction braking force and the regenerative braking force, the control unit is configured to determine whether or not a scavenging preparation condition is satisfied with use of the amount of stagnant water stagnating in the fuel cell, execute a responsiveness enhancement process when the scavenging preparation condition is executed, and execute a scavenging process when the responsiveness enhancement process is completed, and the amount of the stagnant water reaches a reference value.

A hydrogen leakage detection system for detecting a hydrogen leakage in a fuel cell system includes: an outer shell configured to accommodate a hydrogen flow section; a hydrogen sensor; and a porous sheet disposed to delimit at least a part of a space within the outer shell and allowing permeation of hydrogen through the porous sheet in a thickness direction thereof. The hydrogen flow section is disposed in a region below the porous sheet, and the hydrogen sensor is disposed in a region above the porous sheet.

A hydrogen leakage detection system for detecting a hydrogen leakage in a fuel cell system includes: an outer shell configured to accommodate a hydrogen flow section; a hydrogen sensor; and a porous sheet disposed to delimit at least a part of a space within the outer shell and allowing permeation of hydrogen through the porous sheet in a thickness direction thereof. The hydrogen flow section is disposed in a region below the porous sheet, and the hydrogen sensor is disposed in a region above the porous sheet.

A transport vehicle configured to run on electricity generated by a fuel cell includes: a body having a cargo space for freight; a chassis frame located below the body and supporting the body; and a tank unit including a plurality of tanks that stores fuel gas to be used for power generation by the fuel cell and a connecting portion connecting the tanks, the tank unit being located between the cargo space and the chassis frame.

An apparatus for controlling a moisture content of a fuel cell unit includes: a controller configured to determine a driving condition of a first fuel cell unit comprising a first fuel cell stack, a first compressor configured to compress air flowing into the first fuel cell stack, and a first humidifier positioned on a rear end of the first compressor, determine a driving condition of a second fuel cell unit comprising a second fuel cell stack, a second compressor configured to compress air flowing into the second fuel cell stack, and a second humidifier positioned on a rear end of the second compressor, and control the moisture content such that the first fuel cell unit and the second fuel cell unit are driven at controlled operation temperatures in response to the determined driving conditions of the first fuel cell unit and the second fuel cell unit.

A fuel cell electric vehicle includes a ladder frame, a fuel cell stack, a fuel tank, a joint, and a center tunnel. The ladder frame includes two side members extending in parallel in a front-rear direction of the fuel cell electric vehicle and a plurality of cross members linking the two side members. The fuel tank stores fuel gas to be used by the fuel cell stack. The fuel cell stack and the fuel tank are fixed to the ladder frame. The fuel tank and the joint are linked by a first fuel pipe made of metal, and the joint and the fuel cell stack are linked by a second fuel pipe. The fuel tank and the joint are supported by the ladder frame and accordingly the relative vibration of the joint with respect to the fuel tank is reduced, and are disposed in the center tunnel.

A condensate water storage device including a storage container defining a storage space to store condensate water, and having a discharge hole through which the condensate water is discharged to the outside, a valve unit to selectively open and close the discharge hole, a connection cable connected to the valve unit, and a winding unit connected to the connection cable to selectively wind the connection cable and manipulate an operation of the valve unit, thereby selectively discharging the condensate water, which is produced from a fuel cell.

A vehicle unit installation structure has: a power generating unit that is installed at a front portion of a vehicle; a driving unit that is installed at a vehicle rear side of the power generating unit, and that drives front wheels of the vehicle; and a floor tunnel that is formed at a floor that is disposed at a vehicle rear side of the driving unit, a width of a front end portion of the floor tunnel being greater than a width of at least a rear end portion of the driving unit.

A fuel cell vehicle includes a fuel cell stack, a hydrogen gas supply pipe for supplying a hydrogen gas to the fuel cell stack, and injectors provided at positions along the hydrogen gas supply pipe, for injecting the hydrogen gas to the fuel cell stack. The hydrogen gas supply pipe includes a buffer, provided on the upstream side of the injectors, and the hydrogen gas can flow through the buffer. The buffer includes a branch pipe branched from the hydrogen gas supply pipe, and the buffer tank coupled to the branch pipe so as to allow the hydrogen gas to flow through the buffer tank.

The present disclosure relates to a motor drive system comprising: a fuel cell; a motor, electrically connected to the fuel cell; and, a cryogenic system arranged to contain a cryogen, wherein the fuel cell is arranged to output current to the motor, and wherein the cryogenic system is arranged to communicate a cryogen from the cryogenic system to the fuel cell.