A method for controlling a filling process of a motor vehicle tank comprising the following steps: determine a geographic location of the motor vehicle tank; determining, by means of the tank control device, whether the geographical position of the motor vehicle tank is within a predetermined geographical area; and determining a shutdown fill volume dependent on the geographical position of the motor vehicle tank, if the geographical position of the motor vehicle tank is within the predetermined geographical area.

A method for controlling a filling process of a motor vehicle tank comprising the following steps: determine a geographical location of the motor vehicle tank; determining, by means of a tank control device, whether the geographical location of the motor vehicle tank is within a predetermined geographical area; and determining a shut-off filling volume dependent on the geographical location of the motor vehicle tank, if the geographical location of the motor vehicle tank is within the predetermined geographical area.

Vehicle fuel volume estimation systems and methods are provided herein. An example method includes determining a fuel level percentage value for a vehicle, determining a vehicle identification number (VIN) of the vehicle, determining a fuel tank part number using the VIN, converting the fuel level percentage value into a fuel volume value based on the fuel tank part number, and transmitting a message to a recipient, the message that includes the fuel volume value.

The application relates to a fill level valve for a pressure equalization line of a fluid tank assembly, wherein the pressure equalization line is fluidically connected between a fluid tank and a filling line opening into the fluid tank, and wherein the fill level valve includes a connecting piece which can be arranged on the fluid tank. It is provided here that a dip tube, which can be arranged in the fluid tank, and which is fluidically connected to the connecting piece, originates from the connecting piece, wherein a flow resistance formed by a constricted flow cross section is provided in the dip tube. The application furthermore relates to a fluid tank assembly.

Vehicle fuel volume estimation systems and methods are provided herein. An example method includes determining a fuel level percentage value for a vehicle, determining a vehicle identification number (VIN) of the vehicle, determining a fuel tank part number using the VIN, converting the fuel level percentage value into a fuel volume value based on the fuel tank part number, and transmitting a message to a recipient, the message that includes the fuel volume value.

Some embodiments may include a system for determining a filling level of a fuel situated in a fuel tank comprising: an air pump; a valve; a pressure sensor; a control unit; a timing element; and a control unit. The control unit may be programmed to actuate the valve to close the fuel tank and subsequently actuate the air pump to increase a pressure in the fuel tank until an upper threshold is reached. The timing element may determine the time required for the pressure to reach the upper threshold. The control unit may calculate the filling level of the fuel based on the time taken to reach the upper threshold.

A vehicle (100, 200, 300, 400) includes a chassis (110, 210, 310, 410), a gas storage tank (120, 220, 320, 420) for a gas, and a gas storage tank (120, 220, 320, 420) arranged between the chassis (110, 210, 310, 410) and the gas storage tank (120, 220, 320, 420) and connected to the chassis (110, 210, 310, 410) and the gas storage tank (120, 220, 320, 420), the first weighing device (140, 240, 340, 440) being arranged to measure a force exerted by the gas storage tank (120, 220, 320, 420) on the first weighing device (140, 240, 340, 440).

A fuel cap assembly according to an example of the present disclosure includes a fuel cap and a pipe stub that extends from the fuel cap and defines a first internal passage. A sensor element and a fuel tube are adjacent to each other and both extend from the fuel cap through the first internal passage. A cylindrical coupler is composed of an elastomer and defines a second internal passage that extends between an inlet port and an outlet port. The inlet port has a first inner diameter and the pipe stub is receivable into the inlet port. The outlet port has a second inner diameter that differs from the first inner diameter.

Methods and systems are provided for reducing an amount of fuel vapors that are routed to a fuel vapor storage canister during a refueling event, in response to an indication that a fuel dispenser that is dispensing fuel to a fuel tank is underperforming. In one example, a method comprises increasing a pressure in the fuel tank responsive to an indication that the fuel dispenser is dispensing fuel at a first rate that is at least a threshold amount below a second rate, without changing the first rate at which the fuel dispenser is dispensing the fuel. In this way, fuel vapor recirculation may be improved and an amount of fuel vapors routed to the canister reduced, which may thus reduce opportunities for release of undesired evaporative emissions to atmosphere.

A device equipped with a tank, includes: the tank to be filled with a fuel gas; a valve mechanism provided in the tank; a receptacle with which a nozzle of a fuel gas filling device is connectable; a first filling path, an upstream end of the first filling path communicating with the receptacle; a second filling path, a downstream end of the second filling path communicating with the tank through the valve mechanism; and a storage container hermetically communicating between a downstream end of the first filling path and an upstream end of the second filling path, and storing foreign matter contained in the fuel gas, wherein the storage container is positioned vertically above the downstream end of the first filling path.