Systems and methods for fueling (or charging) communication, for example between a hydrogen fueling station and a hydrogen powered vehicle (or an electric vehicle and charging station) may utilize near field communication as well as vehicle to infrastructure communication. Safety information, fueling or charging information, payment information, and other information may be transmitted, and the redundant nature of the communication permits fault recovery and improved process monitoring. In this manner, fueling and/or recharging is made safer, faster, and more efficient.

Methods and devices are disclosed for determining and displaying the current fuel level to a vehicle operation while the vehicle ignition is turned off. An example vehicle includes a fuel tank including a fuel sensor, one or more external vehicle displays, and a processor. The processor is configured to determine a current fuel level of the fuel tank, determine a cost to fill the fuel tank, and display the current fuel level and the cost to fill the fuel tank on the one or more external vehicle displays, while a vehicle ignition is turned off.

Methods and devices are disclosed for determining and displaying the current fuel level to a vehicle operation while the vehicle ignition is turned off. An example vehicle includes a fuel tank including a fuel sensor, one or more external vehicle displays, and a processor. The processor is configured to determine a current fuel level of the fuel tank, determine a cost to fill the fuel tank, and display the current fuel level and the cost to fill the fuel tank on the one or more external vehicle displays, while a vehicle ignition is turned off.

A gas supply system (2) includes a compressor unit (21), an accumulator unit (23), a pre-cooling system (24) and a housing (4). In the gas supply system (2), the compressor unit (21) is vertically arranged and the pre-cooling system (24) is arranged above the accumulator unit (23) in the housing (4). The compressor unit (21) and the accumulator unit (23) are covered by one rectangular parallelepiped housing (4).

A gas supply system (2) includes a compressor unit (21), an accumulator unit (23), a pre-cooling system (24) and a housing (4). In the gas supply system (2), the compressor unit (21) is vertically arranged and the pre-cooling system (24) is arranged above the accumulator unit (23) in the housing (4). The compressor unit (21) and the accumulator unit (23) are covered by one rectangular parallelepiped housing (4).

Systems and methods for fueling (or charging) communication, for example between a hydrogen fueling station and a hydrogen powered vehicle (or an electric vehicle and charging station) may utilize near field communication as well as vehicle to infrastructure communication. Safety information, fueling or charging information, payment information, and other information may be transmitted, and the redundant nature of the communication permits fault recovery and improved process monitoring. In this manner, fueling and/or recharging is made safer, faster, and more efficient.

Systems and methods for fueling (or charging) communication, for example between a hydrogen fueling station and a hydrogen powered vehicle (or an electric vehicle and charging station) may utilize near field communication as well as vehicle to infrastructure communication. Safety information, fueling or charging information, payment information, and other information may be transmitted, and the redundant nature of the communication permits fault recovery and improved process monitoring. In this manner, fueling and/or recharging is made safer, faster, and more efficient.

A portable fueling device that stores and filters fuel. The fueling device may include a frame configured to be towed by a towing vehicle. One or more transport members, such as wheels or skids, facilitate the movement. A fuel tank is positioned on the frame and a fuel line extends outward from the fuel tank. An end of the fuel line opposite from the frame can be configured to dispense the fuel. First and second filters are positioned along the fuel line and each is configured to remove contaminants from the fuel. The first filter is positioned upstream from the second filter and is able to filter smaller sized contaminants than the second filter. The first filter also has a larger capacity than the second filter. A pump can be positioned to move the fuel along the fuel line.

A portable fueling device that stores and filters fuel. The fueling device may include a frame configured to be towed by a towing vehicle. One or more transport members, such as wheels or skids, facilitate the movement. A fuel tank is positioned on the frame and a fuel line extends outward from the fuel tank. An end of the fuel line opposite from the frame can be configured to dispense the fuel. First and second filters are positioned along the fuel line and each is configured to remove contaminants from the fuel. The first filter is positioned upstream from the second filter and is able to filter smaller sized contaminants than the second filter. The first filter also has a larger capacity than the second filter. A pump can be positioned to move the fuel along the fuel line.

A system and method for the transfer of cryogenic fluid fuel includes a nozzle positionable with respect to fuel tank inlet, e.g., of an unmanned aerial vehicle (UAV), a seal to seal the area where the nozzle and inlet are connected, a collapsible and expandable bellows providing an isolation volume where the fluid is transferred from the nozzle into the inlet; a vacuum is provided in the volume to avoid accumulation of fuel or other species in the volume.