Abstract: A method for controlling a heat recovery device in an internal combustion engine, in particular, for a motor vehicle. The heat recovery device is provided with a circuit for a working medium having an evaporator of an expansion machine that is arranged in an exhaust gas flow path of the internal combustion engine, a condensor, an expansion tank, and a feed pump. The working temperature of the working medium is controlled by varying the mass flow of the working fluid as a function of at least one operating parameter. A setpoint value of the working medium mass flow of an exhaust gas flow path of an exhaust gas tract and/or an exhaust gas recirculation line is calculated on the basis of a base setpoint value for the working medium mass flow. The base setpoint value for the working medium mass flow is at least a function of the exhaust gas temperature, preferably upstream of the evaporator, and of the exhaust gas mass flow in the exhaust gas flow path.

Abstract: An electric energy storage device for an electric vehicle, which storage device including at least one battery module having a plurality of especially flat and substantially plate-shaped battery cells which are electrically connected to one another and which are arranged next to one another or one above the other between at least two pressure plates in at least one stack. At least one battery cell and/or the battery module is surrounded by a plastic structure.

Abstract: The invention relates to a thermoelectric generator unit (1) comprising at least one thermoelectric module (2), which comprises an exhaust gas heat exchanger (3) on one side and a coolant heat exchanger (4) on the opposite side in a sandwich-like arrangement, wherein the exhaust gas heat exchanger and the coolant heat exchanger (3, 4) are designed as flat tubes, the flat sides (9, 13) of which are each connected by means of lateral wall sections (10, 20). According to the invention, side walls (15) are fastened to the lateral wall sections (10, 20) of at least the two heat exchangers (3, 4) lying on the outside, which side walls absorb the clamping forces for an even, permanent compression of the individual elements (2, 3, 4) of the thermoelectric generator unit (1). The thermoelectric module (2) is laterally sealed by means of the side walls (15) that absorb the clamping forces.

Abstract: The invention relates to an internal combustion engine comprising a cylinder head (1) with a fire deck (7) on the combustion chamber side, at least one injector sleeve (2) detachably connected to the cylinder head (1) for mounting an injection unit, wherein the injector sleeve (2) is screwed to the fire deck (7) on a fire-deck-side first end (5) via a first screw connection (4), and wherein the injector sleeve (2) comprises in the region of the first end (5) at least one radially protruding first bearing area (9) with a first contact face (10) facing the fire deck (10), which contact face rests on a first counter surface (11) formed by the cylinder head (1).

Abstract: A system for measuring temporally resolved through-flow processes of a fluid. The system includes an inlet, a main line comprising a line section, an outlet fluidically connected with the inlet via the main line, a displacement device arranged in the main line, a circuitous line which branches off the main line between the inlet and the displacement device and to enter the main line between the displacement device and the outlet, a pressure difference transducer arranged in the circuitous line, an evaluation and control unit which controls the displacement device, and a bypass line comprising a pump and a sensor. The bypass line branches off from the main line or from the circuitous line and ends at a same side of the displacement device and the pressure difference transducer to bypass the line section or the circuitous line from which the bypass line branches off.

Abstract: A method for validating a driver assistance system (3) of a vehicle, wherein tests (T) defined by test parameters (P) are carried out for a predetermined test scenario (4), during a first test (T(n)) at least on test parameter (P) is determined, and to generate a second test (T(n+1)) the first test (T(n)) is altered in order to displace the first test parameter (P) within a critical range (7) assigned to it.

Abstract: To enable testing of a starter motor on a test bench with an electrical dynamometer as a replacement for a real combustion engine, a simulation unit (20) is used in which a mathematical model of the combustion engine is implemented, and the simulation unit (20) determines a new load setpoint (ns, Ts) using the mathematical model from measured actual values (?i, ni, Ti) of the operation of the electrical dynamometer (3) at every scanning time point of a regulation, which new load setpoint (ns, Ts) is fed to the regulator (21) of the electrical dynamometer.

Abstract: For a method for testing a vehicle or components thereof which is as flexible as possible, it is proposed that a test control unit 3 generates or plays back a virtual world which contains both a virtual vehicle state and a virtual vehicle environment, and the test control unit 3 manipulates a number of sensors and/or actuators of the real vehicle 1 according to the requirements of the virtual world and, at the same time, activates a driving state actuator 2 according to the requirements of the virtual world, and the driving state actuator 2 generates the instantaneous vehicle state and the instantaneous vehicle environment in the virtual world by introducing additional forces or moments into the real vehicle 1 so that the real vehicle 1 experiences the vehicle state and the vehicle environment from the virtual world on the real test track 4.

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 modifying a driving simulator, characterized in that during at least one time segment of an actual drive, a chronological profile (1) of a biometric state of the athlete is determined, at least one chronological profile of a parameter (5) of a vehicle used by the athlete is determined, a relationship is determined between the chronological profile (1) of the biometric state of the athlete and the chronological profile of the parameter (5) of the vehicle, said relationship giving the change over time of the biometric state according to the change over time of the parameter (5), during a first training in the driving simulator a developing chronological training profile (2) of the biometric state of the athlete is determined, and during a further, second training in the driving simulator, the chronological training profile (7) of the biometric state of the athlete, modified by mental stimulation of the athlete according to the determined relationship, is made to approximate the chronological profil

Abstract: The invention relates to a length-adjustable connecting rod (1) for a reciprocating-piston machine, in particular for an internal combustion engine, comprising at least one first rod part (6) having a small connecting rod eye (2) and a second rod part (9) having a large connecting rod eye (4), which two rod parts can be moved in relation to each other and/or in each other in a telescopic manner, wherein the second rod part forms a guiding cylinder (8) and the first rod part forms a piston element (7) that can be longitudinally displaced in the guiding cylinder, wherein a first high-pressure chamber (10) is spanned between the second rod part and the piston element on the side of the piston element facing the large connecting rod eye, into which first high-pressure chamber at least one first oil channel (20) leads, in which in particular a first check valve (21) opening in the direction of the first high-pressure chamber is arranged, wherein at least a first return channel (22) extends from the first high-pres

Abstract: The invention relates to a device (1) for measuring friction on a cylinder-piston arrangement, wherein a reciprocating piston (3) is arranged in a cylinder liner (2) of a liner unit (23), said cylinder liner being decoupled from a cylinder head (9), and the liner unit (23) is arranged in a liner carrier (8) which is connected to a sensor carrier and which has a rotationally symmetrical receiving region (13) for the cylinder liner (2), said receiving region being concentric to the cylinder axis (21), wherein preferably at least one cooling jacket (12) is assigned to the cylinder liner (2).

Abstract: The invention relates to a cooling system (4) for an internal combustion engine having at least one cylinder head (1), the at least one cylinder head being connected to at least one cylinder block (2) by means of a cylinder-bead sealing surface (28).

Abstract: An internal combustion engine, in particular a large multi-fuel diesel internal combustion engine, and includes an SCR catalytic converter that can be bypassed, and at least one control element for switching the flow in an exhaust gas line between a first position where the SCR catalytic converter is active and a second position where the SCR catalytic converter is bypassed, and at least one flow path bypassing the SCR catalytic converter.

Abstract: A method for obtaining data from a nonlinear dynamic real system during a test run, for instance an internal combustion engine, a drivetrain, or parts thereof, a sequence of dynamic excitation signals is generated according to an initial design and a system output is measured. To enable the quick and precise generation of experimental designs for global measurement, modeling, and optimization of a nonlinear dynamic real system, a sequence of dynamic excitation signals was generated by generating a design with a sequence of excitation signals, obtaining output data by feeding said sequence into a model for the real system, determining a criterion for the information content of the complete design of experiment sequence, varying the sequence, obtaining new output data by feeding said modified sequence into the model, determining again said criterion, iterating until said criterion improves, and using the improved sequence of excitation signals for the real system.

Abstract: A method for simulating cornering of a vehicle 2 being tested on a roller dynamometer 1 to determine a measured variable 13, wherein the vehicle 2 being tested on the roller dynamometer 1 is operated as though driving straight ahead, and to simulate cornering the 5 additional resistance forces of cornering are taken into account in the form of a correction parameter 9.

Abstract: An n-alkane with the general chemical formula CnH2n+2 with an ordinal number n of ten, eleven or twelve is used as operating medium (7) for a condensation nucleus counter for exhaust gases from internal combustion engines (4) by which individual particles contained in the exhaust gas can be counted.

Abstract: The invention relates to a cooling structure (1) for a cylinder head (2) of an internal combustion engine with at least two exhaust valves (3, 4) and at least one intake valve (5, 6) per cylinder, wherein at least one exhaust valve bridge (8) is located between two adjacent exhaust valves (3, 4) and at least two intake-exhaust valve bridges (10, 11) are located each between an exhaust valve (3, 4) and an adjacent intake valve (5, 6), the cooling structure (1) comprising a lower first cooling jacket (12) adjacent to a fire deck (13) and an upper second cooling jacket (14) adjacent to an intermediate deck (15), the first and second cooling jackets (12, 14) being flow connected by at least one transfer opening (27, 31) of the intermediate deck (15), the first cooling jacket (3) including at least one centre cooling chamber (17) and an outer cooling chamber arrangement with at least one first outer cooling chamber (16), the outer cooling chamber (16) and the centre cooling chamber (17) being flow connected by at

Abstract: The invention relates to a method for checking the efficacy of an exhaust gas after-treatment device (9), especially of a caatlyst, for an internal combustion engine, exhaust gas generated by a donor internal combustion engine (2) flowing through the exhaust gas after-treatment device (9) to be checked. In order to allow the efficacy of an exhaust gas after-treatment device (9) to be checked with a high degree of flexibility and in a simple manner, a partial quantity is withdrawn from the exhaust gas flow of the donor internal combustion engine (2) and is fed to a defined partial inlet cross-section (22) of the exhaust gas after-treatment device (9) to be checked.

Abstract: A four-stroke internal combustion engine having an engine brake, at least one exhaust valve per cylinder, each valve actuated by a camshaft and at least one first valve lever arrangement, and a device which advances the exhaust control, with the valve lever arrangement having an exhaust lever actuated by an exhaust cam and a brake lever actuated by a brake cam. The brake lever has a first brake lever part on the side of the camshaft and a second brake lever part on the side of the exhaust valve, with the two brake lever parts being rotatably mounted independent of each other about a lever axis and being rotationally connectable with each other in engine braking operation by a locking element which is adjustable between two positions.