Abstract: Sensors in a test bench environment have to be parameterized in advance. This is a complex task that up to now has been performed mostly manually by a test bench engineer. In order to make the parameterization of a sensor (54) easier, it is proposed that the position of the sensor on the object under test (1) be ascertained through suitable localization methods and the ascertained position be compared with geometric data of the object under test (1), from which the position of the sensor (54) on the object under test (1) can be derived, and from this position on the object under test (1), the variable physically measured by the sensor (54) can be assigned to the sensor (54).

Abstract: An internal combustion engine having a connecting assembly for a cylinder head (2) includes at least one air- or gas-conducting part (4) that connects to at least one flow opening (3a) of the cylinder (2), in particular an exhaust manifold (5) or an intake manifold, and a sealing element (9) disposed between the air- or gas-conducting part (4) and the cylinder head (2). In order to reduce the assembly complexity and save installation space, at least one fastening means (7) for the air- or gas-conducting part (4) is disposed spatially separate from the sealing element (9).

Abstract: In order to be able to simulate a development system of a complex development environment, such as a test bench environment for motor, drive train, transmission, vehicle component, or vehicle development, utilizing an automation device and development tools in a continuous and reproducible manner, device models (7) generating development data (23) run in a simulation device (6), wherein the device models (7) at least partially process simulation data (24) from a test model (20), and a number of real development tools (5) are connected to an automation device (4) and/or to the simulation device (6) via real interfaces, and development tools (5) process the development data (23).

Abstract: In a method for determining the flow rate of fluids using the ultrasonic transit time method, the flow speed and therefrom the flow rate of the fluid is determined from the transit time of ultrasound signals through the measurement section. In order to take into account the change in the transmission function of the ultrasonic converters, which change acts as a drift of the measurement variable, the transmission function of the measurement section is determined at least approximately, and at least one ultrasonic transit time is corrected by means of a correction value that is determined from the group transit time of the transmission function.

Abstract: The invention relates to capacitive ultrasonic transducer comprising a sensor head having a back plate, the structured front side of which is provided with an insulation layer, and. the back side of which is provided with an electrode. In order to achieve an improved construction by means of which increased temperature resistance up to several hundred degrees Celsius can be achieved even in strongly oxidizing and reducing media, the membrane provided as a sound generated is subjected to tensile stress in the planar direction.

Abstract: An internal combustion engine having at least one catalytic converter unit for cleaning the exhaust gases produced during the operation of the internal combustion engine. The internal combustion engine includes at least one catalytic converter body which is arranged upstream of an exhaust gas heat exchanger in an exhaust gas flow path, especially an exhaust gas recirculation line.

Abstract: A rotary piston engine is disclosed. In one aspect, the engine includes a rotary piston rotating in a housing. The engine also includes a piston flank wall extending at least between two apex edges adjacent on the circumferential wall of the piston. The engine further includes a combustion chamber formed between the piston flank wall, an inner circumferential wall of the housing, and inner side walls of the housing, wherein the spark plug is connected to the combustion chamber by at least one spark plug channel. The spark plug channel has a substantially circular, elliptical or slot-like formed cross-section and the spark plug is arranged in a spark plug cavity having a larger diameter than the spark plug channel. The volume of the spark plug cavity is arranged relatively to thee spark plug channel substantially at the rear side, seen in the direction of rotation.

Abstract: An internal combustion engine (1), includes a cylinder head (2) and a cylinder block (3), with a crankcase (10) being fixed to the cylinder block (3), and with the crankcase (10) including at least one oil pump. In order to reduce the production effort the oil pump is arranged in the crankcase (10), with the oil pump (40) being connected with a flange (43), and with the flange (43) being fixed to a mounting wall (42) of the crankcase (10).

Abstract: A test rig for dynamic test assignments on internal combustion engines is equipped with a preferably electrical drive and/or loading device which is coupled to a control device for adapting and controlling setpoint values for a speed and a torque characteristic. For a test rig of this kind, in order to enable the setpoint values determined by a speed and a torque characteristic to be optimally adapted and controlled for the respective test assignment and so that they can be reproduced on the test rig in the best possible manner, the control device can be adapted in terms of adjusting the weighting of speed control to torque control.

Abstract: A method for evaluating the state of a fuel-air mixture and/or the combustion in a combustion chamber of an internal combustion engine, with sample signals of flame light signals being stored in a database, and with flame light signals of the combustion in the combustion chamber being detected and compared with the stored sample signals, and with an evaluation of the state being output in the case of coincidence between the measured and stored signal patterns. In order to enable the monitoring of the combustion in the simplest possible way the sample signals in the database are stored with the assigned emission values and an evaluation of the state of the combustion is performed with respect to the obtained emissions in the case of coincidence between the measured and stored signal patterns for the combustion chamber of the respective cylinder.

Abstract: A piston assembly is disclosed. In one aspect, the piston assembly includes a rotary piston, wherein the rotary piston comprises a first axis of rotation, a central bore having bore axis and at least two curved first constraint surfaces, and wherein the bore axis substantially corresponds to the first axis of rotation. The piston assembly also includes a substantially hollow-cylindrical bearing ring configured to be at least partially inserted in the central bore. The piston assembly further includes at least one fuse body configured to connect the rotary piston and the bearing ring, and to transmit, at least temporarily, a force in the two opposite axial directions relating to the first axis of rotation between the rotary piston and bearing ring.

Abstract: A method for optimizing vehicles and engines that are used for driving such vehicles includes the steps of taking measurements during real operation of the vehicle on the road or on a roller-type test stand, or the engine on an engine test stand; parameterizing a simulation model representing the vehicle or the engine so as to be able to arithmetically determine a prediction about the measured values obtained by means of the measurements; simulating the vehicle by using the simulation model, additionally calculating at least one drivability index (DR) which results from several measured values based on an empirically determined function and which indicates the drivability of a vehicle in a specific driving mode; and optimizing the settings of the vehicle during the simulation, at least one drivability index (DR) being input into the target function or the fringe conditions of the optimization process.

Abstract: A rechargeable electric or high-voltage battery for an electric vehicle, with at least two stacks of battery cells arranged side-by-side in a line in the direction of stacking The stacks are arranged side-by-side in a housing, with cooling air flowing through cooling air channels arranged within the housing transversely to the direction of stacking. The cooling air channels form a closed cooling air circuit for cooling the battery, with the cooling air circuit having at least one cooling air fan and at least one heat exchanger.

Abstract: To achieve high precision in a test stand environment, a method and a device for calibrating a torque measurement unit includes connecting the torque measurement unit with a dynamometer, a set point speed nsoll larger than 0 rpm is specified for a speed regulator, whereby the speed regulator generates a set point torque Tsoll, which is upwardly limited by a reference torque limit Tmax that can be specified, and the reference torque that is limited in this way is specified to the dynamometer as reference torque Tstell.

Abstract: The invention relates to an exhaust gas line (1) of an internal combustion engine, comprising at least one catalytic converter (2) which is provided with at least one catalytic converter support (4) which is arranged in the housing (3) and which comprises at least one first and one second area (5, 6) which can be flowed through in parallel, with the flow being capable of being deactivated in at least one area by means of a switching device (8) arranged in the exhaust gas line (1). In order to achieve a rapid activation of the catalytic converter in the simplest possible and most compact way it is provided that the areas (5, 6) of the catalytic converter support (4) have different physical and/or chemical properties in relation to response behavior, permeability, catalytic activity and/or thermal inertia.

Abstract: A method for judging the drivability of vehicles including acquiring drivability-relevant physical data during the driving operation of the vehicle; checking the data for the presence of trigger conditions which indicate the existence of specific driving states; if a specific driving state exists, calculating at least one local evaluation, which is a judgment of an evaluation criterion relevant for the driving state; and calculating an overall evaluation for the acquired driving state. An increase in precision may be achieved with repeated occurrence of identical driving states, a correction variable is calculated for the evaluations, which is a function of the differences in the behavior of the vehicle upon identical driving states, and a corrected evaluation is calculated in which this correction variable is taken into consideration.

Abstract: An internal combustion engine (1), including a cylinder head (2) and a cylinder block (3), with a crankcase (10) being fixed to the cylinder block (3), and with at least one mass balancing shaft (20) being held in the crankcase (10). In order to reduce the production effort it is provided that—when seen in the direction of the axis (19a) of the crankshaft (19)—a first pin (26) which is arranged in a borehole (6) and arranged as an alignment pin is positioned in the region of the face side (5) of the crankcase (10) on a straight connecting line (27) between the axis (20a) of the mass balancing shaft (20) and the axis (19a) of the crankshaft (19), with preferably the first pin (26) being arranged in the crankcase (10) and the borehole (6) in the flanged bush (24).

Abstract: In a machine-implemented method for obtaining data from a nonlinear dynamic real system during a test run, for instance an internal combustion engine, a drive-train or parts thereof, of a sequence of dynamic excitation signals for at least one measurement channel is generated according to a previously generated design of experiment for said test run and the system output of at least one output channel is measured.

Abstract: A cylinder head of an internal combustion engine with several cylinders includes an inlet side and an outlet side with at least two outlet channels per cylinder, wherein a first coolant jacket is arranged in the cylinder head, the first coolant jacket including a first coolant collection channel which extends along the cylinder head on the outlet side over the outlet channels. The first coolant collection channel is connected to cooling chambers at least partially surrounding the outlet channels, the cooling chambers being in a fluidic connection with at least one transfer opening in a cylinder head gasket plane, wherein one first transfer opening per cylinder is arranged in a first transverse engine plane containing a cylinder axis, and wherein a first transverse cooling passage extends from each first transfer opening in the first transverse engine plane between two respective outlet channels, the first transverse cooling passage splitting into two cooling sub-passages in the area of the cylinder axis.

Abstract: A method for machining a cylinder head including a cooling jacket, wherein the fire deck of the cylinder head which is in a raw state is machined by material removal in relation to a reference mark of the cylinder head. The position of the cooling jacket is used as a reference mark.