Systems and methods may be provided for monitoring a fuel level of a vehicle. The fuel may be a gaseous fuel, such as natural gas. An electronic control unit may be able to receive a signal from one or more sensors. The electronic control unit may provide a command to drive a fuel gauge to display the fuel level. The electronic control unit may determine the gauge command based on the received signal and a filling compensation scheme. The electronic control unit may be initialized through a user interface. A filling compensation scheme may be selected during initialization. The electronic control unit may be capable of communicating various sensors, gauges, devices, controls and/or other ECUs of varying specifications.

A motor vehicle has a pressure relief device that can be thermally activated, for the pressure relief of at least one pressure vessel. A body floor element is arranged at least partially between the passenger compartment or the cargo area and the pressure vessel. A pressure relief triggering device is designed to directly or indirectly bring about the pressure relief. The pressure relief triggering device is designed to absorb thermal energy from the passenger compartment or the cargo area in order to trigger the pressure relief device, without the thermal energy absorbed for the triggering having previously been transmitted to the pressure relief triggering device through the body floor element.

The fuel gas system (100) for a vehicle (1) comprises: a filling device (50) having an outlet pipe (56); a first circuit (11) for providing fuel gas to an engine (8) of the vehicle, and including: a first tank (12); a first supply line (13) connecting the first tank (12) and the engine (8); a first filling pipe (14) connecting the filling device outlet pipe to the first tank (12); a second circuit (21) for providing fuel gas to a thermic device (9) capable of heating, cooling or refrigerating, the second circuit (21) including: a second tank (22); a second supply line (23) connecting the second tank (22) to the thermic device (9); a second filling pipe (24) connecting the filling device outlet pipe (56) to the second tank (22). The first circuit (11) and the second circuit (21) are configured to be in fluid communication: in a filling phase, when fuel gas flows in the first and second filling pipes (14, 24) from the filling device (50) towards the first and second tanks (12, 22); and in a working phase, when fuel gas flows in the first and second supply lines (13, 23) from the first and second tanks (12, 22).

The technology disclosed by the invention relates to a pressure vessel system for a motor vehicle for storing fuel, comprising a plurality of pressure vessels (100) that are combined to a pressure vessel assembly (10), the pressure vessels (100), when mounted, being arranged substantially in parallel relative to each other, and the pressure vessels (100) being fluidically interconnected via a common fuel line (200).

The gas filling system includes: a vehicle that includes a tank and a first communication instrument; and a gas station that includes a second communication instrument. The vehicle includes: a first temperature sensor that acquires temperature information of the gas stored in the tank; a second temperature sensor that acquires temperature information outside the tank; and a controller. The controller permits transmission of the temperature information of the first temperature sensor to the second communication instrument on the condition that the absolute value of a difference between an indicated value of the first temperature sensor and an indicated value of the second temperature sensor is smaller than or equal to a predetermined value, and prohibits transmission of the temperature information of the first temperature sensor to the second communication instrument on the condition that the absolute value of the difference is larger than the predetermined value.

A transport refrigeration system (200) including: a first engine (26) configured to power a refrigeration unit (22); a first fuel tank (330) fluidly connected to the first engine (26) through a first fuel line (332); a first shut off valve (450) located within the first fuel line (332) proximate the first fuel tank (330); a second shut off valve (72) located within the first fuel line (332) proximate the first engine (26); a sensor system (80) configured to detect at least one of a crash of the transport refrigeration system (200), a crash of the first fuel tank (330), a fuel leak in the first fuel line (332), and an engine stall in the first engine (26); and a controller (30) configured to close the first shutoff valve (450) and second shutoff valve (72) when at least one of a crash of the transport refrigeration system (200), a crash of the first fuel tank (330), a fuel leak in the first fuel line (332), and an engine stall in first engine (26) is detected.

The invention relates to a system for supplying a gaseous fuel that comprises a low temperature tank for receiving the fuel in its liquid aggregate state achieved by cooling and comprises a rail that is fluidically connected to at least one injector device for discharging gaseous fuel into a combustion space. The system is characterized in that it has a pressure store that is configured to receive gaseous fuel and that is fluidically connectable to both the low temperature tank and the rail to buffer fuel coming from the low temperature tank and to supply it to the rail.

Disclosed is a method for determining operation of a valve in a gas tank system comprising a plurality of gas tank and valve arrangements, each comprising a gas tank and at least one valve arranged at a passage downstream said gas tank. The method comprises: opening the valves at the passages in a first set of gas tank and valve arrangements; determining a first pressure value at a gas transportation arrangement downstream all of said opened valves; closing the passage at all gas tank and valve arrangements, except for one gas tank and valve arrangement; waiting a pre-determined amount of time; determining a second pressure value at said gas transportation arrangement downstream the gas and tank and valve arrangement whose valve have not been closed; and determining whether said at least one valve which has not been closed operates properly based on said first and second determined pressure values.

A fuel module system is provided. The fuel module system can be mounted on a chassis of a vehicle and deliver a material from a container to an engine at a regulated pressure and a target temperature for optimization of the vehicle. The flow of material can be from the one or more containers to the fuel module system and then to a portion of the engine, wherein the material housed within the one or more containers has a first temperature, a first pressure, and a first flow rate and at the delivery to the portion of engine, the material is adjusted by the fuel module system.

The present disclosure relates to a computer system and a method for controlling pressure release in a liquid gas fuel volume of a vehicle, the vehicle including a liquid gas fuel volume, a valve controllable to ventilate a volume of fuel gas into ambient surroundings of the vehicle, a sensor assembly, a navigational system and a computer system including a processor device. The method includes, by the processor device identifying the vehicle approaching a confined space, measuring by the sensor assembly a status of the liquid gas fuel volume. Based on the measured status of the liquid gas fuel volume and on historical data, estimating an amount of fuel gas that would be released while the vehicle is located in the confined space, and controlling the valve to preemptively ventilate at least the estimated amount of fuel gas from the liquid gas fuel volume before reaching the confined space.