A fuel cell stack formed by stacking a plurality of power generation cells together in a vehicle width direction and a voltage control unit including a voltage controller and a control case are mounted in a front box of a fuel cell vehicle. The control case is joined to a stack case in a manner that the control case is provided adjacent to the stack case in a direction perpendicular to the stacking direction of the plurality of power generation cells. A cell voltage detection unit is provided between the fuel cell stack and a voltage control unit.

A vehicle is provided with an interior chamber apart from a passenger compartment, and a container chamber in which a high pressure gas container is accommodated. A heat generating body is accommodated in the interior chamber. Further, in the vehicle, there are formed introduction ports through which atmospheric air is introduced into the interior chamber, a communication passage that enables communication between the interior chamber and the container chamber, and a lead-out port through which the atmospheric air is led out from the container chamber. The atmospheric air that is introduced into the interior chamber through the introduction ports flows into the container chamber via the communication passage, and furthermore, is led out to the exterior of the container chamber from the lead-out port.

A vehicle is provided with an interior chamber apart from a passenger compartment, and a container chamber in which a high pressure gas container is accommodated. A heat generating body is accommodated in the interior chamber. Further, in the vehicle, there are formed introduction ports through which atmospheric air is introduced into the interior chamber, a communication passage that enables communication between the interior chamber and the container chamber, and a lead-out port through which the atmospheric air is led out from the container chamber. The atmospheric air that is introduced into the interior chamber through the introduction ports flows into the container chamber via the communication passage, and furthermore, is led out to the exterior of the container chamber from the lead-out port.

A fuel cell vehicle capable of determining, when a fuel cell vehicle collides with a rigid body, whether a stack is damaged by a visual observation at a low cost. A fuel cell vehicle includes: a fragile part configured to be located so as to come into contact with a side surface of the stack frame that is orthogonal to a direction in which cells in the stack are stacked, and be deformed when a preset collision force causing damage to a stack is applied; and a deformation part configured to form a part of the vehicle body, and be deformed and come into contact with the fragile part when a collision force is applied to the vehicle body.

A method for operating an electric energy supply device with a plurality of usage units. Each usage unit is designed to generate or buffer electric energy. A control device is designed to control an exchange of energy between the energy supply device on the one hand and at least one device that is connected to the energy supply device on the other hand. For each usage unit it sets a respective setpoint value for at least one electric operating parameter.

A method for operating an electric energy supply device with a plurality of usage units. Each usage unit is designed to generate or buffer electric energy. A control device is designed to control an exchange of energy between the energy supply device on the one hand and at least one device that is connected to the energy supply device on the other hand. For each usage unit it sets a respective setpoint value for at least one electric operating parameter.

A fuel gas pump of a fuel cell vehicle is fixed to a stack frame and a fuel cell stack via a first bracket and a second bracket so that a rotation axis of a motor is inclined to a reference line along a front-rear direction. The first bracket is fixed by passing a second fastening member through a first notch. The second bracket is fixed by passing a third fastening member through a second notch of a second arm. The first and second brackets are provided such that, when the fuel gas pump rotates, the third fastening member comes off from the second bracket at a timing different from a timing when the second fastening member comes off from the first bracket.

A fuel gas pump of a fuel cell vehicle is fixed to a stack frame and a fuel cell stack via a first bracket and a second bracket so that a rotation axis of a motor is inclined to a reference line along a front-rear direction. The first bracket is fixed by passing a second fastening member through a first notch. The second bracket is fixed by passing a third fastening member through a second notch of a second arm. The first and second brackets are provided such that, when the fuel gas pump rotates, the third fastening member comes off from the second bracket at a timing different from a timing when the second fastening member comes off from the first bracket.

The disclosure provides a stack frame that is arranged in a front portion of a vehicle and on which a battery stack is mounted. The stack frame includes a body section and a crash box. The body section includes plural members that are welded to each other along a weld line. The weld line between the plural members extends in a front-back direction of the vehicle. The crash box is arranged on a front side of the body section. A lateral wall surface of the crash box is displaced from an extended line of the weld line.

A stack frame is mounted with a battery stack, and is installed in a vehicle. The stack frame includes: a plurality of frame members arranged in a right-left direction of the vehicle; and a cross member extending in the right-left direction of the vehicle and joined to all end surfaces of the plurality of frame members. An end frame member located at least at one end in the right-left direction of the plurality of frame members, includes: an end surface covered region having an end surface covered with the cross member; and an end surface exposed region having an exposed end surface, and the end surface covered region is provided with more mounting holes used for mounting the battery stack than the end surface exposed region.