Abstract: A method for operating a drive apparatus, having a reciprocating-piston engine and an exhaust-gas-driven turbocharger, of a motor vehicle, the reciprocating-piston engine being operated in a four-stroke mode during on-load operation; and the exhaust-gas-driven turbocharger having an electrical machine, in particular a media gap machine, that is operated in generator mode during overrun operation of the reciprocating-piston engine. During overrun operation, the reciprocating-piston engine is operated in a two-stroke mode.

Abstract: A method for operating a drive apparatus, having a reciprocating-piston engine and an exhaust-gas-driven turbocharger, of a motor vehicle, the reciprocating-piston engine being operated in a four-stroke mode during on-load operation; and the exhaust-gas-driven turbocharger having an electrical machine, in particular a media gap machine, that is operated in generator mode during overrun operation of the reciprocating-piston engine. During overrun operation, the reciprocating-piston engine is operated in a two-stroke mode.

Abstract: A converter unit having at least one output. The at least one output is configured to be connected to a coil of an asynchronous machine. The converter unit is configured to provide several voltage levels at the at least one output.

Abstract: An energy storage control system and method is disclosed. The energy storage control system can include a controller, a circuit defining a plurality of electrical current paths between an input and an output, and a first energy storage device and a second energy storage device electrically coupled in series to one another between the input and output. The control system can also include a first switch device electrically coupled in parallel to the first energy storage device and a second switch device electrically coupled in parallel to the second energy storage device. The controller can be in electrical communication with the first energy storage device and the second energy storage device. The first switch device and second switch device can be operably controlled by the controller.

Abstract: A solenoid valve for controlling a fluid is disclosed. The solenoid includes an armature, a pole core, wherein a working gap is provided between the armature and the pole core, a valve member which is connected to the armature and can be moved together with the armature, a valve body with a through-opening on which a valve seat is formed, wherein the valve member opens and closes the through-opening on the valve seat, a return element which applies a return force to the valve member in order to return the valve member to a closed state, a spring element which is arranged in the working gap, and an adjusting device which is in contact with the spring element in order to adjust a spring force of the spring element.

Abstract: The disclosure relates to a method for determining an estimated value for at least one measured variable of a wind turbine. The measured variable represents a bending torque on a blade root of a rotor blade of the wind turbine from a rotor plane. The method includes reading in the measured variable and an angle of attack for the rotor blade. The method further includes adapting a model, which simulates an estimated value of the measured variable on the basis of a modeling instruction for a relationship between the measured variable and the angle of attack. The model is adapted using the read-in measured variable and the read-in angle of attack. The method also includes providing the estimated value for the at least one measured variable using the model.

Abstract: A microfluidic component for manipulating a fluid includes a first substrate, a second substrate, and a third substrate that is configured from a resilient material and arranged between the first substrate and the second substrate. At least one first recess that forms a first control chamber is configured on the face of the first substrate facing the third substrate. At least one second recess that forms a fluid channel is configured on the face of the second substrate facing the third substrate. A second control chamber that is spatially separated from the first control chamber and a control channel that connects the first control chamber to the second control chamber are formed in the first substrate. At least one lateral wall of the second control chamber is configured from resilient material and is deformable by an actuator such that the inner volume of the second control chamber decreases.

Abstract: The invention concerns a burner, particularly an auxiliary burner in a motor vehicle and most especially a burner to rapidly heat up a three way catalytic converter of an internal combustion engine of a motor vehicle, with a fuel supply mechanism to deliver fuel to the burner, an air supply mechanism to deliver air to the burner, as well as with an open-loop or closed-loop control mechanism to set a desired fuel-air-ratio in the burner. The invention additionally concerns a procedure to operate such a burner. Provision is made, that the open-loop or closed-loop mechanism adjusts the fuel mass delivered from the fuel supply mechanism to the burner to the air mass delivered from the air supply mechanism to the burner.

Abstract: A method for operating a hybrid drive having at least one first and one second drive-connected drive machine, in which an actual torque of at least one of the drive machines is influenced by a reference-forming element in that, from a combined setpoint torque, a first setpoint torque is formed for a slow influencing path and a second setpoint torque is formed for a fast influencing path for the first drive machine and a setpoint torque is generated for a fast influencing path of the second drive machine. A provision is made for the lead setpoint torque for influencing the slow influencing path of the first drive machine to be obtained from the unfiltered combined setpoint torque before the combined setpoint torque is processed in the reference-forming element.

Abstract: A carrier element for an object. The carrier element has an essentially u-shaped form and includes two side pieces, which are interconnected by a bridge.

Abstract: A hose hanger assembly includes a tubular support, at least one mount, a flange structure, and a cover structure. The tubular support defines a first end, a second end, and a storage compartment located therebetween, the first end of the tubular support defining an access opening aligned with the storage compartment. The at least one mount is attached to the second end of the tubular support. The flange structure includes (i) an inner ring member attached in fixed relation to the first end of the tubular support, (ii) an outer ring member spaced apart from the inner ring member, and (iii) and a plurality of links interconnecting the outer ring member and the inner ring member so as to define a plurality of windows, the flange structure being configured to resemble a wheel rim flange. The cover structure is movable between (i) a first position in which the cover structure is located to cover the access opening, and (ii) a second position in which the cover structure is located to expose the access opening.

Abstract: At an accumulator with at least two accumulator cells, which are arranged in an accumulator housing and which are connected electrically with each other by a connector element, at least one of the accumulator cells is connected with the connector element by an electrically conductive adhesive.

Abstract: The invention relates to an active noise cancellation device. The invention proposes a device and a method used to cancel the noise in an exhaust gas channel of a vehicle A noise signal is received form the exhaust gas channel, using a sound sensor, a frequency signal which has same amplitude as of noise signal but opposite phase, is generated, the generated frequency signal is acoustically mixed with the noise signal in the exhaust gas channel, using a sound converter, there by reducing the noise in the exhaust gas channel. The device also takes into account the reflection of the sound caused by an obstacle near the exhaust gas channel. A distance measuring device which is external to the active noise cancellation device provides the information about the distance between the obstacle and the exhaust gas channel. Based on the distance, the frequency signal is suitably modified to reduce the effect of sound reflections caused by the obstacle.

Abstract: For an antenna device, in particular for a radar antenna device having excitation field and radome in front of it, the thickness of the radome is varied such that a location-dependent phase delay of the emitted or received wave front may be attained. Thus, tilts, in particular for the non-vertical installation of radar devices in motor vehicles, that lead to unwanted radiation lobe deviations, may be compensated for in a simple way.

Abstract: Electrical connecting lines of a sensor element are anchored by friction locking, specifically using an annularly closed spring element which clamps the connecting lines against contact surfaces on the sensor element using pressure bodies.

Abstract: A device and a method for controlling an exhaust-gas aftertreatment system, for example, for an internal combustion engine, are provided. The exhaust-gas aftertreatment system includes at least one catalytic converter. A reducing agent is supplied to the exhaust-gas aftertreatment system. An exhaust gas mass flow is preselectable on the basis of the power consumption by a sensor and/or on the basis of a pressure variable.

Abstract: A circuit arrangement for operating an electrical machine having an inductive component. The circuit arrangement includes an electrical switch (TR1 through TR6) that applies a pulse-shaped signal (S1 through S4) to the electrical machine. The free-running circuit also includes an electrical switch (TR1 through TR6). A comparator (15) is provided which compares the free-running current flowing in the free-running circuit with a predefined threshold value and, if the current drops below the threshold value, provides a switching signal (S3A) that is used to deactivate the switch (TR1 through TR6) in the free-running circuit. The circuit arrangement reduces both the electrical power loss in the circuit arrangement and the mechanical power loss in the electrical machine.

Abstract: There are many inventions described and illustrated herein. In one aspect, the present invention is directed to a compensated microelectromechanical oscillator, having a microelectromechanical resonator that generates an output signal and frequency adjustment circuitry, coupled to the microelectromechanical resonator to receive the output signal of the microelectromechanical resonator and, in response to a set of values, to generate an output signal having second frequency. In one embodiment, the values may be determined using the frequency of the output signal of the microelectromechanical resonator, which depends on the operating temperature of the microelectromechanical resonator and/or manufacturing variations of the microelectromechanical resonator. In one embodiment, the frequency adjustment circuitry may include frequency multiplier circuitry, for example, PLLs, DLLs, digital/frequency synthesizers and/or FLLs, as well as any combinations and permutations thereof.

Abstract: An injector for injecting fuel in a combustion chamber of an internal combustion engine has a housing provided with a housing opening, a control valve body movable in the opening of the housing, a ring chamber which encloses the control valve body, an inlet connectable with a high pressure collecting chamber and opening into the ring chamber, a nozzle inlet arranged so that during the movement of the control valve body the nozzle inlet is connected with the inlet or separated from the latter, and 2/2-way control valves arranged inside the housing in series so that one of the 2/2-way control valves is force-equalized in an open condition.

Abstract: A 2/2-way solenoid valve which is open when it is without current and is inserted into a diesel fuel-carrying line to a high-pressure pump. The solenoid valve functions as an emergency shutoff or when the device is tested by supplying the solenoid valve with power which then closes the line to a high-pressure pump, which interrupts the high-pressure delivery. The solenoid valve has an armature, which functions in an armature chamber that is filled with diesel fuel and is sealed in relation to the outside by two O-rings. A plastic valve housing protects the coil and the contacting of the electrical connections from corrosion and protects the individual wires of the coil from vibration stresses. The solenoid valve is designated for use in common rail injection systems of vehicular internal combustion engines.