Abstract: 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).

Abstract: A method for displaying a fill level of a pressure vessel includes measuring an actual fill level of the pressure vessel, calculating a displayable fill level based on the actual fill level, and displaying the displayable fill level via a display device. In the method, during refueling between a first filling point (FP1) and a second filling point (FP2), the displayable fill level is increased in relation to the actual fill level in accordance with a predefined characteristic curve.

Abstract: A method monitors a pressure tank system of a stationary vehicle. The method detects a wake-up situation by use of sensor data of a main sensor of the vehicle. Furthermore, in reaction to the detection of a wake-up situation, the method activates a further resource for detecting and/or for evaluating sensor data with regard to the pressure tank system. Moreover, the method determines, by use of the further resource, whether one or more protective measures are to be carried out in relation to the pressure tank system and/or the surroundings thereof.

Abstract: A control unit for a pressure container system comprising at least one pressure container with a pressure container valve designed to conduct fuel from the pressure container into a removal line for supplying an energy converter. The control unit is designed to determine that a fueling procedure of the pressure container is occurring or has occurred. In response thereto, the control unit is additionally designed to cause the pressure container valve to open in a pulsed manner temporally prior to a removal request for fuel for operating the energy converter so that the pressure in the removal line approximates the pressure in the pressure container.

Abstract: A method for reducing the potential hazard of a number of vehicles with heterogenous drives includes receiving on a backend server hazard data of the vehicles which includes current fill state data of at least one energy store and the current position of the respective vehicles, identifying on a backend server hazard situation data comprising the position and the type of the hazard situation, evaluating on the backend server the hazard data of the vehicles with respect to the hazard situation data, and automatically initiating at least one protective measure corresponding to the evaluated hazard data.

Abstract: A device supports a refueling process of a vehicle having a fuel cell, wherein the vehicle is configured to carry out a switch-off process of the fuel cell prior to the refueling process. The device includes a control unit that determines that a refueling process shall be carried out. The control unit also, in response to the determination, performs one or more measures that reduce a delay time period for starting the refueling process caused by the switch-off process of the fuel cell.

Abstract: A refuelling assistance device that determines one of the following scenarios: (a) that consecutive refuelling operations of a first vehicle at corresponding different fuel stations have taken place without a communication link, and (b) that consecutive refuelling operations at a first fuel station for corresponding different vehicles have taken place without the communication link. In response to determining scenario (a), the control unit causes a communication module of the first vehicle to be checked for establishment of the communication link. In response to determining scenario (b), the control unit causes a communication module of the first fuel station to be checked for establishment of the communication link.

Abstract: A method for at least partially compensating for a temperature-induced rise in pressure in a fuel-cell system includes providing a fuel-cell system that has an anode supply path that establishes a fluidic connection between a fuel-cell stack and at least one fuel-source, and an anode-side stack shut-off valve in the anode supply path, the anode-side stack shut-off valve prohibiting the supply of fuel to the fuel-cell stack from an anode section of the anode supply path. The fuel-cell system also has an excess-pressure valve in the anode section, the excess-pressure valve conducting fuel away out of the anode section if the pressure in the anode section exceeds a tripping pressure. In the shut-down state, the pressure in the anode section rises due to warming of the fuel. The anode-side stack shut-off valve is opened to relieve the pressure before the rising pressure in the anode section reaches the tripping pressure.

Abstract: A method for displaying a fill level of a pressure vessel includes measuring an actual fill level of the pressure vessel, calculating a displayable fill level based on the actual fill level, and displaying the displayable fill level via a display device. In the method, during refueling between a first filling point (FP1) and a second filling point (FP2), the displayable fill level is increased in relation to the actual fill level in accordance with a predefined characteristic curve.

Abstract: A motor vehicle with a pressure vessel system includes at least a first pressure vessel arranged in a first region of the motor vehicle and at least one second pressure vessel arranged in a second region of the motor vehicle having a lower intrusion probability than the first region. Fuel is preferentially removed first primarily from the at least one first pressure vessel. When the lower limit of fuel level or fuel temperature is reached in the at least one first pressure vessel, fuel is removed from the at least one second pressure vessel. If the fuel supply rate from the at least one first pressure vessel is lower than an overall fuel supply rate for an energy converter, fuel is removed from the at least one second pressure vessel to meet the overall fuel supply rate needed by the energy converter.

Abstract: A pressure vessel system for a motor vehicle has at least one pressure vessel, to which an extraction line is connected. The extraction line has a connection point, to which a connection line leading to a consumer is connected. The connection point of the extraction line includes a first coupling part of a quick coupling, to which a second coupling part of the quick coupling, arranged on the connection line, is connected. The first coupling part has a non-return valve, which closes the extraction line when the second coupling part is decoupled.

Abstract: A method for operating a valve of a pressure vessel system includes determining an actual pressure difference between an inlet pressure at an inlet of the valve and an outlet pressure at an outlet of the valve, and enabling the valve if the actual pressure difference is lower than or equal to a maximum admissible pressure difference of the valve.

Abstract: A method for enabling a fuel cell system includes the steps of: i) detecting a pressure value, which is indicative of the pressure within a section of the anode sub-system, wherein the section begins downstream of a pressure reducer; ii) relieving the pressure of the section during a pressure relief time interval, if the pressure value is greater than a pressure limit value and a release request is present; and then iii) enabling the fuel cell system if the pressure value in the section after the pressure relief is less than the pressure limit value.

Abstract: A method for supplying at least one fuel cell of a fuel cell system of the motor vehicle with fuel includes ascertaining or predicting an indication value which is indicative of the real and/or possible mass flow of the withdrawal of fuel from a pressure-vessel system of the motor vehicle and closing at least one tank shut-off valve when the indication value is equal to or falls below a limiting value.

Abstract: A thermally activatable safety valve has at least one microwave transmitter and microwave transmitter component. The microwave transmitter and/or the microwave transmitter component is designed to heat at least one thermally activatable opening element.

Abstract: 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.

Abstract: A pressure vessel stores fuel. The pressure vessel includes a liner, a fiber-reinforced layer, at least one end piece, and at least one outlet. The fiber-reinforced layer surrounds the liner, at least in some regions. The end piece is covered by the fiber-reinforced layer, at least in some regions. The at least one outlet is used to carry fuel that has collected in a boundary layer between the liner and the fiber-reinforced layer and is to be drained. The outlet surrounds the end piece, at least in some sections. The outlet is arranged and formed in such a way that the fuel to be drained escapes from the boundary layer into the outlet.

Abstract: A motor vehicle with a pressure vessel system includes at least a first pressure vessel arranged in a first region of the motor vehicle and at least one second pressure vessel arranged in a second region of the motor vehicle having a lower intrusion probability than the first region. Fuel is preferentially removed first primarily from the at least one first pressure vessel. When the lower limit of fuel level or fuel temperature is reached in the at least one first pressure vessel, fuel is removed from the at least one second pressure vessel. If the fuel supply rate from the at least one first pressure vessel is lower than an overall fuel supply rate for an energy converter, fuel is removed from the at least one second pressure vessel to meet the overall fuel supply rate needed by the energy converter.

Abstract: A method for adjusting temperature and/or pressure of fuel in a pressured container system of a vehicle to a respective temperature setpoint and/or a respective pressure setpoint before a process of filling the pressurized containers includes extracting fuel from a first pressurized container having a first temperature and a first pressure, to bring the first temperature and/or the first pressure of the fuel closer to the temperature setpoint and/or to the pressure setpoint of the first pressurized container. The method also includes supplying the extracted fuel to either a fuel conversion device to power the vehicle or into a second pressurized container, where fuel in the second pressurized container has a second temperature and a second pressure, to bring the second temperature and/or the second pressure of the fuel closer to the temperature setpoint and/or to the pressure setpoint of the second pressurized container.

Abstract: A tank device, in particular in a vehicle, has a pressure tank for storing fuel and a fuel line for filling the pressure tank which extends from outside of the pressure tank through a tank opening up to a free line end in the interior of the pressure tank. The fuel line in the pressure tank has at least one line outlet through which the fuel can flow out of the fuel line into the pressure tank. The fuel line, between the tank opening and the free line end, has a flexible line section such that the flexible line section moves when the pressure tank is filled.