A service device for a pressure vessel system of a motor vehicle includes a service-device-side refueling coupling part which is connectable to a motor-vehicle-side refueling coupling part of the motor vehicle and a controller for activating the pressure vessel system. A method for the service of the pressure vessel system includes producing a connection between the service device and the pressure vessel system and activating the pressure vessel system by the service device.

A liquid volume transfer system includes: a liquid infusion device, including a first communication module, a first controller and a first flow rate detecting module; a liquid container, including a second communication module; and an unmanned aerial vehicle, including a third communication module, a third controller and a second flow rate detecting module. The first controller obtains a remaining liquid volume value from the second communication module through the first communication module, and determines a target infused liquid volume value based on the remaining liquid volume value and a total infused liquid volume value; after completion of infusion, the total infused liquid volume value is sent to the second communication module through the first communication module; the third controller obtains the total infused liquid volume value through the third communication module, and sends the remaining liquid volume value to the second communication module through the third communication module after spraying.

An apparatus, including a monitor system which includes a microphone, a first power supply, and a transmitter which transmits a first audible sound, indicative of a normal flow of fluid into a tank, or transmits a second audible sound, indicative of a need to cease a flow of the fluid into the tank; an attachment device to which the monitor system or the microphone is attached and which is attached to a ventilation pipe or an object in a vicinity of the ventilation pipe; and a receiver system which includes a receiver, which receives the first audible sound or the second audible sound, a second power supply, and a speaker which provides a first audio output, indicative of the first audible sound, or a second audio output indicative of the second audible sound. The speaker outputs the first audio output or outputs the second audio output.

An apparatus, including a monitor system including a microphone, first power supply; and transmitter which transmits a first sound indicative of a normal flow of a fluid into a tank and a second sound indicative of a need to cease the flow of the fluid; an attachment device, wherein the monitor system or microphone is attached to the attachment device, and the attachment device is attached to, or attached to an object in a vicinity of, a ventilation pipe; and a receiver system which is headset, earpiece, wearable device, or handheld device, which includes a housing; receiver which receives the first sound or second sound; second power supply; and speaker. The speaker outputs the first audio output indicative of the normal flow of the fluid into the tank and outputs the second audible sound indicative of the need to cease the flow of the fluid.

A hydrogen gas supply system comprises a storing unit that stores hydrogen, a communication unit that receives at least either of burden information indicative of an environmental burden exerted during manufacturing of hydrogen externally received by the storing unit and quality information indicative of quality with respect to the hydrogen externally received by the storing unit, a user interface unit that provides an output in accordance with the at least either of the burden information and the quality information with respect to the hydrogen supplied from the storing unit to the user, and a controller that controls the user interface unit based on an amount of the hydrogen received by the storing unit and the at least either of the burden information and the quality information, which is received by the communication unit.

The present system is directed in one embodiment to a vehicle with a cargo tank or reservoir and a pumping system, comprising a centralized controlled area network (CAN) in operative communication with a programmed computing device, e.g., a programmed logic controller (PLC) that may automate the pumping process output to automatically adjust based on demand and may further enable a pump flow rate that is infinitely adjustable to match output requirements. In other embodiments, the pump speed is no longer dependent upon engine speed or RPM. In other embodiments, the CAN may monitor for vapor at the pump inlet and automatically slow the pump speed until the vapor problem is resolved. Other embodiments may comprise the CAN integrating various vehicle and pumping systems to maximize safety and safety issue annunciations.

A fuel filling apparatus and method for a bi-fuel vehicle using both gasoline and liquefied petroleum gas (LPG) as a fuel are provided to. The fuel filling apparatus and method are capable of temporarily burning a portion of LPG fuel after collecting the fuel portion, using a gasoline fuel tank and a canister, when the internal pressure of an LPG fuel tank in the bi-fuel vehicle is equal to or greater than an LPG filling pressure of a filling gun. Additionally, the internal pressure of the LPG fuel tank is decreased to a level below the LPG filling pressure of the filling gun, thereby achieving smoother LPG fuel filling of the LPG fuel tank by the filling gun.

A system for autonomously controlling a fluid refill station (FRS) includes a sensor that generates an input signal indicative of an amount of fluid in a tank of an autonomous truck and a central controller. The central controller monitors the amount of fluid in the tank and assigns the autonomous truck to the FRS if the amount of fluid has reached a minimum threshold value. The central controller determines an alignment of the tank of the autonomous truck with a fluid outlet of the FRS, directs the FRS to refill the tank with fluid if the tank is in alignment with the fluid outlet of the FRS, and directs the FRS to stop refilling the tank when the amount of fluid in the tank has reached a maximum threshold value. The central controller marks the FRS as non-functional based on a determination of an anomaly with the FRS.

An apparatus, including a monitor system which includes a microphone, a first power supply, and a transmitter which transmits a first audible sound, indicative of a normal flow of fluid into a tank, or transmits a second audible sound, indicative of a need to cease a flow of the fluid into the tank; an attachment device to which the monitor system or the microphone is attached and which is attached to a ventilation pipe or an object in a vicinity of the ventilation pipe; and a receiver system which includes a receiver, which receives the first audible sound or the second audible sound, a second power supply, and a speaker which provides a first audio output, indicative of the first audible sound, or a second audio output indicative of the second audible sound. The speaker outputs the first audio output or outputs the second audio output.