Abstract: A pressure sensor and a method for measuring a pressure, the pressure sensor including a main body having a piezoelectric material and at least two internal electrodes arranged in the piezoelectric material, where the at least two internal electrodes are arranged such that a voltage arises between the at least two internal electrodes when a pressure acts on a side surface of the main body.

Abstract: A method for detecting a dosing error of a reduction agent in a dosing module of an SCR catalytic converter system. The SCR catalytic converter system comprises the dosing module, which has a dosing valve and a flow valve as well as a delivery module with delivery pump. The SCR catalytic converter system, furthermore, has a return, in which a further flow valve is arranged. Said flow valve changes an effective cross-sectional area of the return. The method herein comprises the following steps: at the beginning, the dosing valve is closed (200). At a first pressure value (p1) in the system the delivery pump is switched off (201) and a measurement (202) of a first pressure rate (?RLdynamic) of the flow valve of the return subsequently takes place. Additional operation of the pump and the dosing valve occurs and a ratio of pressure rates is determined.

Abstract: The invention relates to an injector assembly for metering a fluid, in particular a reductant, into an exhaust line (9) of an internal combustion engine, comprising an injector (2), a housing (3) which surrounds the injector (2), a first opening (5) which is provided on the housing (3) in order to allow access for a fluid connection (4) in order to supply the fluid to the injector (2), a second opening (6) which is provided on the housing (3), and an electric connection assembly (7) which is arranged in the housing (3) and which is led from an electric connection (20) of the injector to the second opening (6). The electric connection assembly (7) comprises a line portion (70) and a plug socket (71), and the plug socket (71) is arranged in the housing (3) in a sealed manner on the second opening (6).

Abstract: The invention relates to a housing (10) for an electrical machine (50) and to an electrical machine (50) having such a housing (10). The housing (10) comprises an inner wall (12) and an outer wall (14), with a hollow space (16) therebetween for cooling the electrical machine (50) with a fluid. The housing (10) further has a sealing device (24, 26) on a front face (22, 23) of the housing (10). The housing is particularly characterised in that the sealing device (24, 26) comprises an annular sealing element (28) mounted between the inner wall (12) and the outer wall (14) so as to seal the front face, and in that the sealing device (24, 26) comprises a deflection ridge (30) which projects from the sealing element (28) in the axial direction of the housing (10) and is at least partially arranged between the walls (12, 14), the deflection ridge (30) being designed to lead a cooling fluid in the hollow space (16). A compact, economical and fluid-tight housing (10) can thus be advantageously provided.

Abstract: A method and a device for the functional testing and evaluation of a control system. The method for functional testing of sensors, actuators, and/or a control logic system of a control system controlled in at least a partly automated manner has the following: sending at least one stimulus to a sensor, an actuator, and/or to the control logic system of the control system; reading out at least one reaction of the control system from the sensor, from the actuator, from the control logic system, and/or from a connection between these components; and using a metric module to compare the reaction with a stored expected reaction, the metric module determining a metric according to which deviations of the read-out reaction from the expected reaction are to be evaluated with respect to the intended function of the control system.

Abstract: A diesel exhaust fluid delivery system and a dual-variable control strategy for adjusting the delivery pressure and the mass flow rate of the fluid passing through the system. The method for operating the system using two operating modes: low flow rate and high flow rate. While operating in the low flow rate operating mode, the speed of a DEF pump remains constant and DEF delivery to the exhaust system is adjusted by controlling a backflow valve. While operating in the high flow rate operating mode, the backflow valve is closed and the speed of the pump is adjusted to regulate DEF delivery to the exhaust system.

Abstract: A hydraulic block of a slip regulation of a hydraulic vehicle power brake system that has a master brake cylinder bore and forms a master brake cylinder. In order to prevent a hard impact of a piston of the master brake cylinder against an end stop when the master brake cylinder is released, in particular when there is an abrupt release, for example when the foot slides off a foot brake pedal, a hydraulic return damper that is integrated in the piston is provided.

Abstract: An adsorption refrigeration device includes a first chamber with an adsorber/desorber material and a second chamber with an evaporator/condenser device. The first and second chambers are in fluid connection via a pipeline. The fluid connection between the chambers is blocked in a first functional position and opened in a second functional position via a valve device that is arranged in the pipeline. The valve device has a valve element with a variable diameter. The valve element has two functional positions. In the first functional position, the valve element has a first diameter by which it fills an internal cross section of the pipeline with tight contact with an inner wall of the pipeline. In the second functional position, the valve element has a second diameter that is smaller than the first diameter such that a gap is opened between the inner wall of the pipeline and the valve element.

Abstract: The disclosure proceeds from a system, in particular from a portable power tool system, having at least one mobile functional module which has at least one communications unit for communicating electronic data, having at least one building infrastructure device which has at least one communications unit for communicating with the functional module, and having at least one control and/or regulation unit which is at least intended to use an evaluation of a communication between the functional module and the building infrastructure device to at least infer a position of the functional module. It is proposed that the functional module is at least intended to sense at least one article-specific parameter, a user-specific parameter and/or an environment-specific parameter and/or to transmit said parameter(s) at least to the building infrastructure device.

Abstract: A nanostructured environmental sensor includes a silicon based substrate, a structural base located above the substrate, and a sensor portion suspended above the structural base. A top surface of the sensor portion is formed from nickel oxide using atomic layer deposition. The nanostructured thin film nickel oxide environmental sensor is provided in a housing to form an environmental sensor package for sensing attributes of the environment to which the environmental sensor package is exposed.

Abstract: A brake fluid reservoir for a vehicle comprising: a shell defining a main chamber for containing a quantity of brake fluid for one or more vehicle brake circuits having an outer surface; a fill opening defined by the shell in an upper portion of the outer shell, the fill opening in fluid communication with the main chamber and closable by a cap to close the main chamber from the surrounding environment; outlet ports defined by the shell in a lower portion of the outer shell, the outlet ports in fluid communication with the main chamber; and a channel located along at least a section of the outer surface between the fill opening and the outlet ports, wherein the channel is configured to collect fluid when fluid exits the opening along the outer surface.

Abstract: Disclosed is a device for filling a receptacle, comprising at least one filling station (48) for filling at least one receptacle (36), and at least one receptacle holder (38) for conveying the receptacle (36) relative to the filling station (48), characterized in that at least one driving surface (13) and at least one mover (20) which can be coupled to the driving surface (13) especially in a magnetic manner are provided, the mover (20) being arranged so as to be movable and/or rotatable on the driving surface (13) in at least two degrees of freedom, and in that the receptacle holder (38) is disposed on the mover (20).

Abstract: A power tool includes a slide switch which is configured to provide variable speed control of the rotational velocity of a drive member as well as provide ON/OFF functionality for the tool 10 based on the position of the switch. The slide switch eliminates the need for a separate switch for turning the tool on and off.

Abstract: A current measuring circuit for redundantly measuring electrical current includes a measuring resistor, a magnetic field sensor, and an evaluation circuit on an evaluation circuit board. The evaluation circuit is used to determine electrical current using the measuring resistor. The magnetic field sensor on the evaluation circuit board and the evaluation circuit board are arranged in direct proximity to the measuring resistor such that the magnetic field sensor is configured to detect the magnetic field from the current-carrying resistor. A battery includes the current measuring circuit and a motor vehicle includes the battery.

Abstract: A lifting and conveying device includes a lifting body, a revolving conveyor element, and a linear drive. The revolving conveyor element is deflected on the lifting body to a conveyor path on which an item can be conveyed. The lifting body is engageable or engaged by the linear drive of the device for a lifting of the conveyor path.

Abstract: A mast for a rig for a surfboard is characterized among others by the following features: a mast with a profiled cross-section in the longitudinal direction, said cross-section being formed transversely to the mast longitudinal direction and deviating from a circular shape; the profiled cross-section has the shape of a droplet or has a droplet-like design in the manner of a droplet profile; the mast has a fork tree head securing section which can be rotated or pivoted about the fork tree head securing section; the fork tree head securing section is provided with a cross-section which deviates from the droplet profile; and the mast lower part and the mast upper part of the mast consist of plastic or comprise plastic optionally with the addition of a reinforcement consisting of metal, glass fibers, and/or carbon fibers.

Abstract: A hand-held power tool has a tool housing in which a gear unit which is drivable by a drive motor for driving a drive shaft is situated and to which a torque clutch is assigned. On the hand-held power tool, the drive shaft is provided with a tool holder for holding an assigned insertion tool, and an acceleration sensor is provided which is designed for enabling detection of an activation of the torque clutch.

Abstract: A sensor element for a pressure sensor, includes a sensor membrane on which a defined number of piezoresistors are situated, the piezoresistors being configured in a circuit in such a way that, when there is a change in pressure an electrical change in voltage can be generated; at least two temperature measuring elements configured in relation to the sensor membrane in such a way that temperatures of the sensor membrane at positions of the piezoresistors can be measured using the temperature measuring elements, an electrical voltage present at the circuit of the piezoresistors due to a temperature gradient being capable of being compensated computationally using the measured temperatures.

Abstract: A compensating device, which can be placed between a robot, e.g., used to grip and position workpieces, and a gripper moved by the robot to compensate position tolerances, includes respective interfaces for a manipulator and an end effector, with the compensating device positioned between the manipulator and the end effector and including a joint device aligned with a first axis Z between the interface segments, a first joint partner connected to the first interface segment, and a second joint partner connected to the second interface segment, one of the joint partners including a ball segment and the other including, for the ball segment, a receptacle segment that includes at least one ramp region so that the joint device forms a pivot or ball joint, the ball segment being capable of being displaced from a normal position in a transverse direction X-Y to the first axis Z into a compensating position.

Abstract: A method ascertains a state of a product in a plurality of time periods using a detection unit associated with the product. The method including the following for each of the time periods: setting a configuration of the detection unit at a beginning of the respective time period, the configuration different than a configuration available beforehand, and detecting at least one measured value using the detection unit in the respective time period on the basis of the set configuration.