A vehicle (10), preferably an unmanned and/or autonomous vehicle for example an unmanned aerial vehicle, UAV, is described. The vehicle (10) comprises: a set of structural components (100), arranged to provide, at least in part, a structure of the vehicle (10) and to resist, at least in part, internal and external forces in one, two or three dimensions; a propulsion system (600), arranged to propel the vehicle (10), and/or an auxiliary power supply (700), arranged to provide electrical power to the vehicle (10); a set of hydrogen storage devices (200), including a first hydrogen storage device (200A), and optionally a set of heaters (300) including a first heater (300A), wherein the set of hydrogen storage devices (200) is arranged to provide hydrogen gas to the propulsion system (600) and/or to the auxiliary power supply (700); wherein the first hydrogen storage device (200A) comprises: a pressure vessel (230A), having a first fluid inlet (210A) and a first fluid outlet (220A), comprising therein a thermally conducting network (240A) optionally thermally coupled to the first heater (300A), wherein the pressure vessel (230A) is arranged to receive therein a hydrogen storage material in thermal contact, at least in part, with the thermally conducting network (240A); and preferably, wherein the thermally conducting network (240A) has a lattice geometry, a gyroidal geometry and/or a fractal geometry in two and/or three dimensions; and wherein the first hydrogen storage device (200A_, preferably the pressure vessel and/or the thermally conducting network (230A) thereof, provides a first structural component (100A) of the set of structural components (100).

A vehicle (10), preferably an unmanned and/or autonomous vehicle for example an unmanned aerial vehicle, UAV, is described. The vehicle (10) comprises: a set of structural components (100), arranged to provide, at least in part, a structure of the vehicle (10) and to resist, at least in part, internal and external forces in one, two or three dimensions; a propulsion system (600), arranged to propel the vehicle (10), and/or an auxiliary power supply (700), arranged to provide electrical power to the vehicle (10); a set of hydrogen storage devices (200), including a first hydrogen storage device (200A), and optionally a set of heaters (300) including a first heater (300A), wherein the set of hydrogen storage devices (200) is arranged to provide hydrogen gas to the propulsion system (600) and/or to the auxiliary power supply (700); wherein the first hydrogen storage device (200A) comprises: a pressure vessel (230A), having a first fluid inlet (210A) and a first fluid outlet (220A), comprising therein a thermally conducting network (240A) optionally thermally coupled to the first heater (300A), wherein the pressure vessel (230A) is arranged to receive therein a hydrogen storage material in thermal contact, at least in part, with the thermally conducting network (240A); and preferably, wherein the thermally conducting network (240A) has a lattice geometry, a gyroidal geometry and/or a fractal geometry in two and/or three dimensions; and wherein the first hydrogen storage device (200A_, preferably the pressure vessel and/or the thermally conducting network (230A) thereof, provides a first structural component (100A) of the set of structural components (100).

A group of motor vehicles contains at least vehicles of two different vehicle types of the following vehicle types: a battery drive vehicle with only one electric motor drive, a hybrid drive vehicle with an electric motor drive and an internal combustion engine drive, a fuel cell drive vehicle with a fuel cell drive, and an internal combustion engine drive vehicle with only one internal combustion engine drive. All of the vehicle types of the group of motor vehicles have a base assembly with a left-side sill structure, a right-side sill structure, an upper base, a lower base, and a central tunnel structure.

A group of motor vehicles contains at least vehicles of two different vehicle types of the following vehicle types: a battery drive vehicle with only one electric motor drive, a hybrid drive vehicle with an electric motor drive and an internal combustion engine drive, a fuel cell drive vehicle with a fuel cell drive, and an internal combustion engine drive vehicle with only one internal combustion engine drive. All of the vehicle types of the group of motor vehicles have a base assembly with a left-side sill structure, a right-side sill structure, an upper base, a lower base, and a central tunnel structure.

A power supply device for the electric power supply of at least one consumer is provided having a primary power grid in which there is present a fuel cell arrangement comprising electric contacts which includes a discharge circuit switched in parallel and connected to the electric contacts comprising a switch element activatable by means of a controller across a switch line as well as a resistance element and having a DC-DC converter which is present in the primary power grid by which the primary power grid is connected to a secondary power grid characterized in that the discharge circuit comprises a safety device or a safety function, which holds the switch element in an opened state and thereby makes the discharge circuit inactive for as long as an actuating possibility exists via the switch line, and which places the switch element in a closed state and thereby makes the discharge circuit active for lowering the voltage of the fuel cell arrangement once the actuating possibility via the switch line is denied. Furthermore, a method for lowering the voltage of a fuel cell arrangement of a power supply device is also provided.

A power supply device for the electric power supply of at least one consumer is provided having a primary power grid in which there is present a fuel cell arrangement comprising electric contacts which includes a discharge circuit switched in parallel and connected to the electric contacts comprising a switch element activatable by means of a controller across a switch line as well as a resistance element and having a DC-DC converter which is present in the primary power grid by which the primary power grid is connected to a secondary power grid characterized in that the discharge circuit comprises a safety device or a safety function, which holds the switch element in an opened state and thereby makes the discharge circuit inactive for as long as an actuating possibility exists via the switch line, and which places the switch element in a closed state and thereby makes the discharge circuit active for lowering the voltage of the fuel cell arrangement once the actuating possibility via the switch line is denied. Furthermore, a method for lowering the voltage of a fuel cell arrangement of a power supply device is also provided.

A drive system of an electric vehicle is disclosed. The vehicle has an arrangement optimized for characteristics of a hydrogen electric truck so as to ensure an available space inside vehicle body frames, thereby allowing a battery, high-voltage electric parts, a hydrogen tank, and the like to be arranged inside the vehicle body frames and increasing space utilization in the vehicle. The drive system includes a motor configured to drive the vehicle, a reducer or a transmission connected to an output side of the motor so as to change a rotational speed of the motor, and a rear axle configured to transmit rotating power output from the reducer or the transmission to vehicle wheels. The motor and the reducer or the transmission together with the rear axle are mounted on a suspension.

A drive system of an electric vehicle is disclosed. The vehicle has an arrangement optimized for characteristics of a hydrogen electric truck so as to ensure an available space inside vehicle body frames, thereby allowing a battery, high-voltage electric parts, a hydrogen tank, and the like to be arranged inside the vehicle body frames and increasing space utilization in the vehicle. The drive system includes a motor configured to drive the vehicle, a reducer or a transmission connected to an output side of the motor so as to change a rotational speed of the motor, and a rear axle configured to transmit rotating power output from the reducer or the transmission to vehicle wheels. The motor and the reducer or the transmission together with the rear axle are mounted on a suspension.

A fuel cell vehicle includes a vehicle body, a tank mounted on the vehicle body, a fuel cell unit configured to generate electricity by using gas supplied from the tank, and a first band configured to fix the tank to the vehicle body. The tank includes a valve-side end including a cap to which an automatic valve is attached, a base-side end opposite to the valve-side end, and a cylindrical tank side surface extending between the valve-side end and the base-side end. The first band extends in a circumferential direction along the tank side surface, and is located within a range of a first predetermined distance ±15 mm from the base-side end or within a range of a second predetermined distance ±15 mm from the valve-side end.

A fuel cell vehicle includes a vehicle body, a tank mounted on the vehicle body, a fuel cell unit configured to generate electricity by using gas supplied from the tank, and a first band configured to fix the tank to the vehicle body. The tank includes a valve-side end including a cap to which an automatic valve is attached, a base-side end opposite to the valve-side end, and a cylindrical tank side surface extending between the valve-side end and the base-side end. The first band extends in a circumferential direction along the tank side surface, and is located within a range of a first predetermined distance ±15 mm from the base-side end or within a range of a second predetermined distance ±15 mm from the valve-side end.