Abstract: A tank arrangement includes a tank container which encloses a tank space where the tank container has a bottom side and a top side which is disposed opposite from the bottom side. A swirl pot is disposed in the tank space and has a swirl pot opening. A suction jet pump has a nozzle, a propulsion jet line, and a suction jet line where the propulsion jet line and the suction jet line open into the nozzle and where the nozzle has an outlet opening. The nozzle is disposed on the top side of the tank container at a distance above the swirl pot opening with the outlet opening directed toward the swirl pot opening.

Abstract: A method for checking operability of a first metering unit includes sending a control signal to a second metering unit to dispense a second quantity; comparing the quantity dispensed with the second quantity; sending a control signal to a second metering unit to introduce a third quantity; detecting the pressure drop caused by the introduction of the third quantity; sending a control signal to the first metering unit to introduce a first quantity; detecting the pressure drop caused by executing the control signal to introduce the first quantity; and ascertaining that the first metering unit is not functioning correctly if a difference between the pressure drop detected as a result of the execution of the control signal to introduce the first quantity and the pressure drop detected as a result of the execution of the control signal to introduce the third quantity is above a threshold.

Abstract: A method for checking operability of a first metering unit includes sending a control signal to a second metering unit to dispense a second quantity; comparing the quantity dispensed with the second quantity; sending a control signal to a second metering unit to introduce a third quantity; detecting the pressure drop caused by the introduction of the third quantity; sending a control signal to the first metering unit to introduce a first quantity; detecting the pressure drop caused by executing the control signal to introduce the first quantity; and ascertaining that the first metering unit is not functioning correctly if a difference between the pressure drop detected as a result of the execution of the control signal to introduce the first quantity and the pressure drop detected as a result of the execution of the control signal to introduce the third quantity is above a threshold.

Abstract: A method for determining an air mass in an air separator of a water direct injection system for injecting a water/fuel mixture into a combustion chamber of an engine of a motor vehicle. The air separator is disposed between a water pump for delivering water of the water/fuel mixture and a high-pressure pump for feeding the water/fuel mixture to a high-pressure injector for injecting the water/fuel mixture into the combustion chamber. The method includes increasing a pressure of the water from a first pressure value to a second pressure value by the water pump, determining a water volume delivered by the water pump during the increasing of the pressure of the water by the water pump, and determining the air mass in the air separator on a basis of the determined water volume delivered by the water pump.

Abstract: The invention relates to a method and a control unit for controlling a hybrid driveline comprising an internal combustion engine (ICE) and at least one alternative propulsion unit. The method involves monitoring a predetermined first parameter related to vehicle operation and a second parameter related to the state of an exhaust particle filter, wherein a particle filter regeneration is scheduled when the predetermined second threshold is exceeded. If the first parameter has exceeded or is expected to exceed a predetermined first threshold within a set time period prior to a scheduled particle filter regeneration; then initiation of an on-board diagnostic process is delayed until the particle filter regeneration has been completed. Subsequently, the hybrid driveline is controlled to perform a particulate filter regeneration at the scheduled time and the ICE is operated to perform the on-board diagnostic process.

Abstract: A method for determining an air mass in an air separator of a water direct injection system for injecting a water/fuel mixture into a combustion chamber of an engine of a motor vehicle. The air separator is disposed between a water pump for delivering water of the water/fuel mixture and a high-pressure pump for feeding the water/fuel mixture to a high-pressure injector for injecting the water/fuel mixture into the combustion chamber. The method includes increasing a pressure of the water from a first pressure value to a second pressure value by the water pump, determining a water volume delivered by the water pump during the increasing of the pressure of the water by the water pump, and determining the air mass in the air separator on a basis of the determined water volume delivered by the water pump.

Abstract: An operating material supply system for a motor vehicle includes: i) at least one operating material container for storing operating material at risk of freezing; ii) at least one conveying device, which is designed to convey the operating material stored in the operating material container upstream in the direction of at least one injector, or in the opposite direction downstream, iii) at least one air separator, which is connected to the operating material container via a feed line; iv) at least one first injector line, which connects the air separator to at least one first injector. When the air separator is installed in the motor vehicle, a connector for the first injector line is distanced further from the roadway surface than a connector for the feed line.

Abstract: An operating material supply system for a motor vehicle includes: i) at least one operating material container for storing operating material at risk of freezing; ii) at least one conveying device, which is designed to convey the operating material stored in the operating material container upstream in the direction of at least one injector, or in the opposite direction downstream, iii) at least one air separator, which is connected to the operating material container via a feed line; iv) at least one first injector line, which connects the air separator to at least one first injector. When the air separator is installed in the motor vehicle, a connector for the first injector line is distanced further from the roadway surface than a connector for the feed line.

Abstract: The invention relates to a tank assembly (5) having a tank container (10), a swirl pot (20) and an eductor pump (30), wherein a nozzle (32) of the eductor pump (30) is arranged on an upper side (16) of the tank container (10) at a distance above a swirl pot opening (22) of the swirl pot (20).

Abstract: A device for supplying a liquid at risk of freezing to the combustion chambers of an internal combustion engine, in particular an internal combustion engine driving a motor vehicle, is designed to convey the liquid at risk of freezing at least from a section of a supply line, through which the liquid travels from a storage container to a supply unit to the internal combustion engine, back to the storage container. In addition, an aeration valve is provided near to the supply unit and branching off from the supply line, via which the supply line is connected to the environment in the open state.

Abstract: A water injection device is provided for a vehicle internal combustion engine having a storage tank for water and a conveying device which is connected to water and can convey water through a feed line into at least one injection valve which is assigned to the internal combustion engine and if required, in the case of a switched-off internal combustion engine, can convey it from the injection valve back in the direction of the storage tank. A device for separating air from the water which is conveyed back is provided in the feed line. The device for separating air is configured in the form of a container, in the upper interior region of which the at least one or more feed lines opens/open, whereas a forward feed line which is connected to the conveying device opens into the lower interior region of the container, and wherein, as viewed in the vertical direction, the upper interior region of the container is spaced apart further from a roadway, on which the vehicle is standing, than the lower interior region.

Abstract: A water tank device for an internal combustion engine with water injection, includes a water tank with an internal volume, which is at least partly delimited by a tank wall and in which a liquid is stored for the water injection in the internal combustion engine, and a filter device, which is designed to clean fuel vapor from a fuel tank of the internal combustion engine. The filter device has a heat transfer surface. The filter device is closed so as to be fluid-tight against the liquid which can be received in the internal volume. The filter device is arranged on the water tank such that a heat exchange with the liquid which can be stored in the water tank is facilitated via the heat transfer surface.

Abstract: The invention relates to a method and a control unit for controlling a hybrid driveline comprising an internal combustion engine (ICE) and at least one alternative propulsion unit. The method involves monitoring a predetermined first parameter related to vehicle operation and a second parameter related to the state of an exhaust particle filter, wherein a particle filter regeneration is scheduled when the predetermined second threshold is exceeded. If the first parameter has exceeded or is expected to exceed a predetermined first threshold within a set time period prior to a scheduled particle filter regeneration; then initiation of an on-board diagnostic process is delayed until the particle filter regeneration has been completed. Subsequently, the hybrid driveline is controlled to perform a particulate filter regeneration at the scheduled time and the ICE is operated to perform the on-board diagnostic process.

Abstract: A device supplies water into a high-pressure fuel pump of a motor vehicle internal combustion engine, wherein the water is admixed to the fuel in the inlet region of the high-pressure fuel pump in a controlled manner by a metering valve, and wherein the device is designed to guide the water at least from a part of a supply line back to the storage container. When viewed in the flow direction from the storage container to the high-pressure fuel pump, a shut-off valve is provided in the supply line upstream of the metering valve, and the supply line is designed to elastically deformably change its volume in a line section positioned between the valves.

Abstract: A device for supplying a liquid at risk of freezing to the combustion chambers of an internal combustion engine, in particular an internal combustion engine driving a motor vehicle, is designed to convey the liquid at risk of freezing at least from a section of a supply line, through which the liquid travels from a storage container to a supply unit to the internal combustion engine, back to the storage container. In addition, an aeration valve is provided near to the supply unit and branching off from the supply line, via which the supply line is connected to the environment in the open state.

Abstract: A water tank device for an internal combustion engine with water injection, includes a water tank with an internal volume, which is at least partly delimited by a tank wall and in which a liquid is stored for the water injection in the internal combustion engine, and a filter device, which is designed to clean fuel vapor from a fuel tank of the internal combustion engine. The filter device has a heat transfer surface. The filter device is closed so as to be fluid-tight against the liquid which can be received in the internal volume. The filter device is arranged on the water tank such that a heat exchange with the liquid which can be stored in the water tank is facilitated via the heat transfer surface.

Abstract: A container is provided for a liquid operating medium of a motor vehicle. The container includes: i) an outer container which forms a container volume; ii) at least one heating device which is designed to thaw frozen operating medium, and iii) a partition which divides the container volume into a proximal region and a distal region. The proximal region is arranged closer to the at least one heating device than the distal region. The partition is designed to let through more operating medium between the proximal region and the distal region in the installation position of the container than in an oblique position of the container.

Abstract: A container is provided for a liquid operating medium of a motor vehicle. The container includes: i) an outer container which forms a container volume; ii) at least one heating device which is designed to thaw frozen operating medium, and iii) a partition which divides the container volume into a proximal region and a distal region. The proximal region is arranged closer to the at least one heating device than the distal region. The partition is designed to let through more operating medium between the proximal region and the distal region in the installation position of the container than in an oblique position of the container.

Abstract: A motor vehicle includes a tank for storing a liquid reducing agent suppliable to the exhaust system of an internal-combustion engine, and an air delivery device, by which an excess pressure can be built-up in a cushion of air situated in the tank above the reducing agent level. Via the air delivery device, alternatively, a vacuum is generatable in the air cushion, which vacuum supports feeding of the agent into the tank. Via the vacuum in the air cushion, reducing agent can also be returned from a pipe, which leads the reducing agent to the exhaust system, back into the tank, and/or additional liquid reducing agent can be transferred from a storage tank by way of a supply duct.

Abstract: A method is provided for determining the amount of ammonia which is stored in a storage container by a chemical bond to a solid storage medium, in particular a salt of an earth alkaline metal or the like, and which can be released by supplying heat in order to be supplied to a catalytic exhaust gas purification device of an internal-combustion engine. The storage medium functions as a dielectric of an electric capacitor and the stored amount of ammonia is inferred from the capacity of this capacitor. One wall of the housing of the storage container functions as a first electrode of the capacitor, and, within the storage container, at least one additional electrode is arranged such that at least a partial amount of the storage medium forms the dielectric. The storage container may have an essentially cylindrical shape. Several cylindrical electrodes can be arranged in a coaxial manner.