Abstract: An evaluation module configured to evaluate the lifespan of a multichip module, the multichip module comprising a first substrate and multiple chips under evaluation, includes a second substrate, configured to be the same as the first substrate, and having attachment positions corresponding to the attachment positions on the first substrate, and at least one evaluation chip, configured to be the same as the multiple chips under evaluation. The number of evaluation chips is less than the number of chips under evaluation by at least one. The at least one evaluation chip is arranged at an attachment position on the second substrate, such that the at least one evaluation chip and the chip under evaluation arranged at the corresponding attachment position on the multichip module have the same cooling performance and sustain the same thermal stress. The present disclosure also discloses a method for evaluating the lifespan of a multichip module.

Abstract: The invention relates to a method for determining a target volumetric flow rate (V) for a coolant that is conducted through a coolant path in order to cool a power converter, wherein: the temperature (TC) of a DC-link capacitor of the power converter and the temperature (TK) of the coolant are determined, and a value for the target volumetric flow rate (V) is determined on the basis of the temperature (TC) of the DC-link capacitor and the temperature (TK) of the coolant.

Abstract: This invention relates to a microelectromechanical loudspeaker implemented as a system-on-chip or system-in-package. The microelectromechanical loudspeaker includes a microelectromechanical sound-generating device implemented in a microelectromechanical system (MEMS) and a microphone mounted on the cover or integrated in the cover, wherein the microphone is positioned adjacent to one of the sound outlet openings of the cover. The MEMS comprises a cavity formed between a planar cover, a planar base and circumferential sidewalls provided between the cover and the base. The MEMS further comprises a plurality of movable actuators for generating sound. The actuators are provided in the cavity between the cover and the base, and wherein the cover and the base have a plurality of sound outlet openings to emit sound in a direction transverse to the cover and the base, respectively.

Abstract: A quick clamping device for a portable power tool, in particular an angle grinder, includes an output shaft that is configured to be driven in rotation and at least one clamping unit that is configured to fix an application tool unit to the output shaft without tools. The clamping unit has at least one movably mounted clamping element configured to apply a clamping force to the application tool unit in a clamping position of the clamping element. The clamping element is formed by a positive-locking element that is movable transversely to an axis of rotation of the output shaft and is configured to engage behind at least a subregion of the application tool unit in a positive-locking manner so as to secure the application tool unit.

Abstract: An OFDM radar sensor including multiple transmission channels and at least one reception channel, and a method for operating such an OFDM radar sensor. At least for first transmission channels, the signal form of the signal to be transmitted, which includes a sequence of OFDM symbols in question, is progressively computed in portions for each transmission channel, and multiple buffer memories are used in alternation for storing a computed portion of the signal form and for reading out a previously computed and stored preceding portion of the signal form, which is converted from digital to analog and transmitted. A particular portion of the signal form is computed and stored in one of the buffer memories while a preceding portion of the signal form is being read out from another of the buffer memories and converted from digital to analog, and transmitted on the transmission channel in question.

Abstract: A vehicle is located on a digital map, with objects being stored in the digital map in a georeferenced manner. From a set of these objects stored in a georeferenced manner in the digital map, which are currently being detected by the environment sensor, the object most distant from the environment sensor is identified and a current sensor range of the environment sensor is determined on the basis of the distance of the environment sensor from the object.

Abstract: An electrochemical cell cathode catalyst layer includes electrocatalyst particles, an electrocatalyst support having an electronically conductive porous material including a plurality of pores with a diameter of less than or equal to 10 nm having a surface morphology comprising a plurality of peaks and valleys, the surface morphology being configured to contain the electrocatalyst particles within the plurality of pores and to enhance mass transport of molecular oxygen to the electrocatalyst particles by adsorbing molecular oxygen to the surface morphology, and an ionomer adhered to the electrocatalyst, the electrocatalyst support, or both.

Abstract: An exciter device is configured to apply both a vibrational force and an impact force to a device-under-test. A first end of a piston is couplable to the device-under-test and a second end of the piston is aligned with a position of an impact hammer tip. The impact hammer tip and an electromagnet are both coupled to a moveable housing that is positioned around the piston. The exciter device applies a vibrational force to the device-under-test when an alternating magnetic field is applied by the electromagnet to the permanent magnet causing a linear reciprocating movement of the moveable housing relative to the piston. The exciter device applies an impact force to the device-under-test when a magnet field is applied by the electromagnet to the permanent magnet causing a linear movement of the moveable housing that is sufficient to cause the impact hammer to contact the second end of the piston.

Abstract: A projection device for smart glasses. The projection device includes an image generating unit for generating at least one first light beam representing image information, and at least one deflecting element, which is configured to deflect the first light beam in the form of a second light beam representing first image information, and to deflect the first light beam in the form of a third light beam representing second image information, into a first field of vision and/or into a second field of vision of an eye; the second light beam and the third light beam differing with regard to a beam divergence; and the second field of vision and the first field of vision at least overlapping.

Abstract: A method for calculating reaction heat in an exhaust system of an internal combustion engine by means of a model, comprising a first model component and a second model component, wherein the first model component refers to a calculation of exhaust components flowing from valves of the internal combustion engine, the second model component relates to the entire exhaust system, and total masses from the first model component are divided along the exhaust system onto the individual components of the exhaust system.

Abstract: A suction adapter, in particular a suction drill suction adapter, for connecting an insertion tool, in particular a suction drill, to a suction apparatus includes at least one insertion tool receiving region, in which the insertion tool is arranged, at least one connection interface with respect to an insertion tool suction channel of the insertion tool, and at least one, in particular dimensionally stable, discharge guiding unit configured to delimit a suction channel. The at least one discharge guiding unit has at least one discharge guiding element configured to delimit a suction channel outlet of the suction channel and which has a longitudinal axis. The longitudinal axis of the at least one discharge guiding element is orientated parallel with a main extent axis of the at least one insertion tool receiving region in a region of the suction channel outlet in at least one operating state.

Abstract: A method for matching data of a first control unit for controlling an electrical energy storage unit, which includes a plurality of electrochemical energy stores, with a second control unit for determining precise predictive values.

Abstract: Notifying a driver of a number of hydraulic pressure support events. In one example, a system includes a parking brake assembly; a human-machine interface; and a parking brake electronic processor configured to generate a command to apply one or more braking components of the parking brake assembly to at least one wheel of the vehicle and generate a request for additional hydraulic pressure support. The system also includes a host electronic processor configured to receive the request for additional hydraulic pressure support; generate a command to build extra hydraulic pressure; and provide the command to the pump motor. The host electronic processor is also configured to increment a counter indicating a number of hydraulic pressure support events performed; compare the counter to a threshold value; and provide an alert to the driver via the human-machine interface when the counter exceeds the threshold value.

Abstract: A method for operating a pump motor of a control device of a braking system. The control device has the pump motor, a valve device having at least one electrically operable switching valve, a first electric supply connection connectable electrically to the pump motor and a second electric supply connection connectable electrically to the valve device, an electric setpoint operating current being predetermined for the pump motor, and the pump motor being connected electrically to the first supply connection, so that the setpoint operating current is provided at least partially through the first supply connection. It is provided to connect the pump motor electrically to the second supply connection, so that the setpoint operating current is provided at least partially through the second supply connection.

Abstract: A method for operating a burner, comprising supplying a controlled quantity of combustion air to the burner, supplying a controlled quantity of fuel to the burner, igniting the air-fuel mixture in the burner, determining a pressure pulsation value in the exhaust gas downstream of the burner and/or in an air path upstream of the burner, and adjusting the quantity of combustion air and/or the fuel depending on the pressure pulsation value. Further proposed are a computing unit and a computer program product for performing such a method.

Abstract: Method for emptying an SCR supply system, wherein the SCR supply system comprises a pump with a pump chamber and an actively controllable inlet valve and an actively controllable outlet valve, wherein an emptying process of the SCR supply system is detected and controlled as a function of the pressure curve in negative pressure phases and/or criteria determined in pressure release phases.

Abstract: A shut-off valve for a pressurized-gas vessel includes a valve closing body which can perform stroke movements and is preloaded by the spring force of a closing spring against a valve seat. When the valve closing body is in a closed position, a connection of a valve inlet to a valve outlet is shut off. The shut-off valve includes an actuator arrangement for opening the valve closing body. The actuator arrangement interacts with an actuating element which is arranged spaced apart from and coaxial with respect to the valve closing body and which is movable by the actuator arrangement in the direction of the valve closing body. When the actuating element abuts against the valve closing body, an opening impulse can be generated.

Abstract: A rim magnet arrangement for fixing on a stem of a valve. The rim magnet arrangement includes a magnet, and a fixing device, which is configured to fix the magnet on the stem of the valve in an axial direction of the stem, and an anti-twist protection, which is configured to fix the magnet in a circumferential direction of the stem.

Abstract: Systems and methods for automated MIMO force-response characterization of a structure-under-test. The structure-under-test is coupled to a plurality of exciter devices and a plurality of response sensors. An excitation signal is automatically and iteratively applied to each exciter device while sensor data is collected from each response sensor to collect response data for a plurality of different exciter-sensor combinations (i.e., response data collected by a single response sensor while the excitation signal is applied to a single exciter device). A signal quality test is applied to the collected sensor data and, in response to determining that the collected response data for a particular exciter-sensor combination is of insufficient quality, the data collection for that exciter-sensor combination is automatically repeated. The excitation signal can be automatically adjusted before repeating the data collection to improve the quality of the collected data for the exciter-sensor combination.

Abstract: A computer-implemented method of implementing a computation using a hardware-accelerated instruction of a processor system by solving a constraint satisfaction problem. A solution to the constraint satisfaction problem represents a possible invocation of the hardware-accelerated instruction in the computation. The constraint satisfaction problem assigns nodes of a data flow graph of the computation to nodes of a data flow graph of the instruction. The constraint satisfaction problem comprises constraints enforcing that the assigned nodes of the computation data flow graph have equivalent data flow to the instruction data flow graph, and constraints restricting which nodes of the computation data flow graph can be assigned to the inputs of the hardware-accelerated instruction, with restrictions being imposed by the hardware-accelerated instruction and/or its programming interface.