Abstract: A freight vehicle has a loading space, on which freight is loaded, rearward of a vehicle cabin in which an occupant rides. The freight vehicle includes a fuel cell mounted below the vehicle cabin and functioning as an electric power source, a storage portion disposed between the vehicle cabin and the loading space, and a tank disposed in the storage portion and stores fuel gas that is supplied to the fuel cell, and a radiator installed in the storage portion and performs heat exchange between air and a coolant that is supplied to the fuel cell.

Abstract: A combination vehicle includes a tractor and a trailer towed by the tractor. The trailer includes a first tank that is configured to store a high-pressure gas as a fuel used by the tractor to travel. The tractor includes a second tank that is configured to store a high-pressure gas as a fuel used by the tractor to travel. The combination vehicle is configured to travel using the fuel supplied from the first tank and the second tank.

Abstract: 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.

Abstract: A fuel cell system includes at least one pressure reducing valve connected to a downstream side of a hydrogen gas tank, a hydrogen gas flow path including a first flow path connected to a downstream side of the pressure reducing valve and a plurality of second flow paths connected to a downstream side of the first flow path and branched from the first flow path, a plurality of injector units, each of which is connected to each of the second flow paths, a plurality of fuel cell stacks, each of which is connected to each of the injector units, and a control unit controlling opening and closing of the injector units. The control unit sets valve closing periods of the injector units to periods deviating from each other such that at least one of the injector units is always opened when the fuel cell system satisfies a predetermined operating condition.

Abstract: A gas supply system includes: a gas tank; an unbalanced pressure reducing valve that reduces a pressure of the gas supplied from the gas tank; a pressure sensor that detects an outlet-side pressure of the pressure reducing valve; a flow rate changing unit that changes an outlet-side flow rate of the pressure reducing valve; and a control unit. The control unit changes the outlet-side flow rate between first and second flow rates, obtains a first pressure, which is a detection value of the pressure sensor when the outlet-side flow rate is the first flow rate, and a second pressure, which is a detection value of the pressure sensor when the outlet-side flow rate is the second flow rate, and estimates an inlet-side pressure of the pressure reducing valve using the relationship among the first flow rate, the second flow rate, and the difference between the first and second pressures.

Abstract: 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.

Abstract: A vehicle includes a plurality of fuel tanks in which fuel is stored, and a fuel consuming unit that is connected to the fuel tanks and that consumes the fuel supplied from the fuel tanks to obtain a driving force of the vehicle. The fuel tanks are arranged such that a longitudinal direction of the fuel tanks extends along a height direction of the vehicle.

Abstract: A fuel cell system includes at least one pressure reducing valve connected to a downstream side of a hydrogen gas tank, a hydrogen gas flow path including a first flow path connected to a downstream side of the pressure reducing valve and a plurality of second flow paths connected to a downstream side of the first flow path and branched from the first flow path, a plurality of injector units, each of which is connected to each of the second flow paths, a plurality of fuel cell stacks, each of which is connected to each of the injector units, and a control unit controlling opening and closing of the injector units. The control unit sets valve closing periods of the injector units to periods deviating from each other such that at least one of the injector units is always opened when the fuel cell system satisfies a predetermined operating condition.

Abstract: A freight vehicle has a loading space, on which freight is loaded, rearward of a vehicle cabin in which an occupant rides. The freight vehicle includes a fuel cell mounted below the vehicle cabin and functioning as an electric power source, a storage portion disposed between the vehicle cabin and the loading space, and a tank disposed in the storage portion and stores fuel gas that is supplied to the fuel cell, and a radiator installed in the storage portion and performs heat exchange between air and a coolant that is supplied to the fuel cell.

Abstract: A freight vehicle includes a chassis, a body portion having therein a vehicle cabin in which an occupant rides and supported by a front end of the chassis, a tilt mechanism that is provided on the chassis and that tilts the body portion with respect to the chassis, a tank that is disposed on the body portion and stores gas, a gas consuming unit that is supported by the chassis and supplied with the gas to consume the gas, and a pipe that connects the tank and the gas consuming unit and through which the gas flows. At least a part of the pipe is composed of a flexible pipe having a first end fixed to the body portion and a second end fixed to the chassis.

Abstract: A gas supply system includes: a gas tank; an unbalanced pressure reducing valve that reduces a pressure of the gas supplied from the gas tank; a pressure sensor that detects an outlet-side pressure of the pressure reducing valve; a flow rate changing unit that changes an outlet-side flow rate of the pressure reducing valve; and a control unit. The control unit changes the outlet-side flow rate between first and second flow rates, obtains a first pressure, which is a detection value of the pressure sensor when the outlet-side flow rate is the first flow rate, and a second pressure, which is a detection value of the pressure sensor when the outlet-side flow rate is the second flow rate, and estimates an inlet-side pressure of the pressure reducing valve using the relationship among the first flow rate, the second flow rate, and the difference between the first and second pressures.

Abstract: A combination vehicle includes a tractor and a trailer towed by the tractor. The trailer includes a first tank that is configured to store a high-pressure gas as a fuel used by the tractor to travel. The tractor includes a second tank that is configured to store a high-pressure gas as a fuel used by the tractor to travel. The combination vehicle is configured to travel using the fuel supplied from the first tank and the second tank.

Abstract: A fuel cell system includes a supply channel having first channels respectively connected with tanks, and a second channel merged with each of the first channels; first on-off valves of the first channels; a second on-off valve of the second channel; and a controller configured to control opening and closing of the first on-off valves and the second on-off valve. In a state where the second on-off valve is closed, the controller supplies first electric power used for opening the first on-off valve against a first differential pressure to at least one first on-off valve, and supplies second electric power, smaller than the first electric power and used for opening the first on-off valves against a second differential pressure smaller than the first differential pressure, to the first on-off valves other than the at least one first on-off valve.

Abstract: The fuel cell system according to the present disclosure includes: a pressure reducing valve provided in a fuel supply pipe constituting a flow path for a fuel gas between main stop valves and injectors; a high-pressure communication pipe provided so as to communicate a first flow path with a second flow path, the first and the second flow paths being the fuel supply pipes serving as flow paths for the fuel gases sent from fuel gas tank units among the fuel supply pipes upstream of the pressure reducing valve, respectively; and a low-pressure communication pipe provided so as to communicate a third flow path with a fourth flow path, the third and the fourth flow paths being the fuel supply pipes serving as flow paths for the fuel gases supplied to fuel cell stacks among the fuel supply pipes downstream of the pressure reducing valve, respectively.

Abstract: A fuel cell system includes a supply channel having first channels respectively connected with tanks, and a second channel merged with each of the first channels; first on-off valves of the first channels; a second on-off valve of the second channel; and a controller configured to control opening and closing of the first on-off valves and the second on-off valve. In a state where the second on-off valve is closed, the controller supplies first electric power used for opening the first on-off valve against a first differential pressure to at least one first on-off valve, and supplies second electric power, smaller than the first electric power and used for opening the first on-off valves against a second differential pressure smaller than the first differential pressure, to the first on-off valves other than the at least one first on-off valve.

Abstract: A fuel cell system includes a supply channel having first channels respectively connected with tanks, and a second channel merged with each of the first channels; first on-off valves of the first channels; a second on-off valve of the second channel; and a controller configured to control opening and closing of the first on-off valves and the second on-off valve. In a state where the second on-off valve is closed, the controller supplies first electric power used for opening the first on-off valve against a first differential pressure to at least one first on-off valve, and supplies second electric power, smaller than the first electric power and used for opening the first on-off valves against a second differential pressure smaller than the first differential pressure, to the first on-off valves other than the at least one first on-off valve.

Abstract: A fuel cell system includes a supply channel having first channels respectively connected with tanks, and a second channel merged with each of the first channels; first on-off valves of the first channels; a second on-off valve of the second channel; and a controller configured to control opening and closing of the first on-off valves and the second on-off valve. In a state where the second on-off valve is closed, the controller supplies first electric power used for opening the first on-off valve against a first differential pressure to at least one first on-off valve, and supplies second electric power, smaller than the first electric power and used for opening the first on-off valves against a second differential pressure smaller than the first differential pressure, to the first on-off valves other than the at least one first on-off valve.