Abstract: A method for resistance welding includes performing a plurality of resistance welding processes during which welding electrodes are pressed against respective welding spots of respective workpieces. The welding electrodes are energized with a respective welding current for each of the plurality of resistance welding processes, and for each of the plurality of resistance welding processes, a respective at least one characteristic value that characterizes a quality of the welding is determined. A statistical analysis of the determined at least one characteristic value for each of the plurality of resistance welding processes is performed, and based upon the analysis, an adaptation of the prescribed welding parameters is determined.

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 control system for controlling a hydraulic installation with a plurality of receivers operating in parallel includes control units which regulate control positions of each of the receivers supplied by a pump, the pressure and flow rate of which are regulated by a regulator with or without flow rate sharing. The distributor associated with each receiver is switched between modes by a switch associated with each receiver. A counter supplies a control signal to the switches in order to switch them to flow rate sharing mode, if at least two receivers must be activated. Each control unit generates a pressure value and a flow rate value in order, in flow rate sharing mode, to generate a flow rate regulation signal corresponding to the sum of all the flow rates, and a pressure signal corresponding to the highest pressure out of all the pressures.

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: The invention relates to a circuit arrangement (200) for controlling a plurality of semiconductor switches connected in parallel, having an activation connection (213) and a deactivation connection (214), and having a plurality of control connections (220), each provided for connection to a control connection (123) of one of the plurality of semiconductor switches, wherein the activation connection (213) and the deactivation connection (214) are each connected to each of the plurality of control connections (220), and wherein a circuit breaker (230) is provided between the activation connection (213) and at least one of the control connections (220), furthermore having at least one detection and control arrangement which is designed to detect a current flow in the at least one of the control connections (220) and, if a short-circuit is detected on the basis of the current flow, to control the circuit breaker (230) to open.

Abstract: The invention relates to a method for operating a motor vehicle (1) which has an electrical machine (7) with at least three phases, an electrical energy store (13) and a power electronics system (12) having a plurality of switching elements, wherein the switching elements of the power electronics system (12) are actuated for electrically connecting the phases to the energy store (13), in order to produce a generator deceleration moment. Provision is made for a driving situation of the motor vehicle (1) to be determined, wherein an actuation method is selected from amongst a group of at least two possible actuation methods according to the determined driving situation, and wherein the switching elements are actuated according to the selected actuation method.

Abstract: To obtain a hydraulic pressure control unit that can be downsized. A hydraulic pressure control unit (1) for a brake system mounted to a straddle-type vehicle includes: a coil unit (60) used to open/close a channel of a brake fluid; a housing (40) that accommodates the coil unit (60); a placement table (90) held by the housing (40); and a base body (10) having an upper surface (18) to which the coil unit (60) and the housing (40) are connected. The placement table (90) is configured that at least a part thereof is arranged below a portion of a coil housing (65) of the coil unit (60) and that, in a state before the coil unit (60) and the housing (40) are connected to the base body (10), a support section (91) supports the portion of the coil housing (65) from below.

Abstract: Device for use in a biosensor comprising a multisite array of test sites, the device being useful for modulating the binding interactions between a (biomolecular) probe or detection agent and an analyte of interest from a biological by modulating the pH or ionic gradient near the electrodes in such biosensor. The device provides a biosensor which is more accurate, reliable and the results of which are more reproducible. Analytic methods for more accurately measuring an analyte of interest in a biological sample are also provided.

Abstract: The presented invention relates to a method for operating an electrical energy store, the ageing behaviour of which is estimated by means of an expected ageing profile, wherein a rapid-charging profile, which is to be used, of the electrical energy store is ascertained depending on a comparison between a detected state of ageing of the electrical energy store and a desired state of ageing, which is determined by means of the expected ageing profile, of the electrical energy store.

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 battery cell. The battery cell incluedes a first terminal contact and a second terminal contact, an energy storage unit, a first transistor, a sensor system that is set up to acquire a state parameter of the battery cell, and a control circuit. A first pole of the energy storage unit is coupled to the first terminal contact, and a second pole of the energy storage unit is coupled to the second terminal contact. The first transistor is connected between the first terminal contact and the second terminal contact in series with the energy storage unit. The he control circuit is set up to control a switching process of the first transistor, the control circuit controlling the first transistor based on the acquired state parameter in order to control a charge current or a discharge current of the energy storage unit.

Abstract: A method for carrying out a distance-regulating or speed-regulating function for a single-track motor vehicle. An activated distance-regulating or speed-regulating function can be deactivated by the driver through actuation of a brake operating element, if the actuation intensity of the brake operating element exceeds a first threshold value. The presence of a collision risk is ascertained by an environmental sensor system. When there is a risk of collision, an emergency braking assistance function is activated through the actuation of the brake operating element by the driver with an actuation intensity exceeding a second threshold value. The second threshold value is lower than the first threshold value. The activated distance-regulating or speed-regulating function is continued independently of the driver after the termination of the emergency braking assistance function, with the settings that were present before the activation of the emergency braking assistance function.

Abstract: The invention relates to a control device (100) for a DC-DC converter (110) having multiple parallel-connected DC-DC converter modules (120_1, . . . , 120_n). The control device measures individual target current values for the DC-DC converter modules so that these are operated with a common degree of utilisation.

Abstract: The present invention obtains a controller capable of improving assistance performance of a rider. The present invention also obtains a rider-assistance system including such a controller. The present invention further obtains a control method for such a rider-assistance system. In the case where travel posture information of a lean vehicle (100) is acquired and the travel posture information is information indicating that leaning of the lean vehicle (100) exceeds a reference, initiation of first rider-assistance operation for assisting with driving by a rider by using information on a first target (T1) located on a side of a travel line (DL) of the lean vehicle (100) is prohibited, and initiation of second rider-assistance operation for assisting with driving by the rider using information on a second target (T2) located on the travel line (DL) of the lean vehicle (100) is permitted.

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: 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 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: 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: 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.