Abstract: A wheel load assembly (5) for a dynamometer test bench (1) comprises—a support structure (17) which can be assembled on a base (12), —a vertical load device (18) having a first application bracket (19) which is rigidly connectable to a bearing body (96), which in turn is couplable to the wheel suspension part (3), a first reaction support (20) connected to the support structure (17), a first force transmission connector (21) connected between the first reaction support (20) and the first application bracket (19), as well as a first load apparatus (22) operatively connected to the first force transmission connector (21) to load the first force transmission connector (21) in a first vertical load direction (23), —a longitudinal load device (24) having a second application bracket (25) which is rigidly connectable to the bearing body (96), which in turn is couplable to the wheel suspension part (3), a second reaction support (26) connected to the support structure (17), a second force transmission connector (27)

Abstract: A processing unit includes a first communication interface that is designed for communication with a server device and/or a mobile device. The processing unit also has a second communication interface, which is designed for communication with the mobile device. The processing unit further has an internal communication interface of the processing unit, which is designed for communication with a vehicle bus network of the vehicle. The processing unit is designed to receive vehicle access data, which is representative of an access authorization of a driver to the vehicle via the second communication interface. The processing unit is also designed to determine depending on the vehicle access data a release signal for enabling a use of the vehicle and to provide it to the internal communication interface. The processing unit is also designed to receive vehicle analysis data via the internal communication interface.

Abstract: According to some embodiments, a method of performing EMC testing of an ADV can be used According to some embodiments, a method of performing EMC testing of an ADV can be used to test how software and hardware components in the ADV are impacted in an indoor EMC testing environment. According to the method, the ADV can be positioned at a fixed spot in the indoor EMC testing environment, and can be driven in an autonomous driving mode for a predetermined period of time. One or more of the autonomous driving modules of the ADV are modified to accommodate the positioning of the ADV at the fixed spot and the indoor EMC testing environment. The ADV can determine if each of a plurality of performance parameters meets its performance metric during the predetermined period of time. If each performance parameters meets its performance metric, the ADV is considered to have passed the EMC testing.

Abstract: A robot has brake and accelerator actuating levers (9, 10) and a rotary actuator (12) between them. A drive ring (16) is fast with an actuator drive member (14) and between them they captivate a journal bearing (17) for the brake actuating lever (9) on which a return spring (19) acts. Advance of the lever is via a cam member (31) adjacent it. Wherever the output drive member (14) from the rotary actuator is turned, the cam member is rotated correspondingly. For brake application, the drive member (14) is driven, clockwise in FIG. 2. For brake release, and accelerator application, the drive member is driven back and the cam member is disengaged from the lever (9) with unidirectional freedom. The drive ring (16) is carried on a central ‘clutch’ member (35). The central member (35) is journalled in a fixed clutch member (36), which carries a clutch operating winding (38) for clutching together the central member (35) and an accelerator drive member (39) journalled on the central member.

Abstract: Wind tunnel test stand for motor vehicles convertible into multiple configurations including a one-belt, three-belt and/or five-belt configuration. The wind tunnel test stand includes force sensors for sensing forces between a weighing platform and a test stand frame, a belt unit with a conveyor belt, and a carriage accommodating at least one belt unit, where the carriage is supported relatively movably with respect to the test stand frame in X- and Y-directions.

Abstract: The present invention relates to a filter for controlling a simulator for the representation of movements of a simulated vehicle, the rotational and translational control commands required to control the simulator being calculated from a difference between the angle of rotation and the apparent vertical angle, taking into account a physiological rotation rate limitation.

Abstract: A 240 degrees radially rotatable deck assembly rotatable in either direction without requiring resetting in a park position and requiring only a rotatable outer ring of a slew gear connected to a rotatable sub-frame attached to the deck, a fixed inner ring of the slew gear affixed to a fixed sub-frame fixed to a frame of the assembly and only a single hydraulic motor requiring no cylinders and only one main valve body with incorporated electric solenoids reducing the complexity of the plumbing and the weight of the assembly resulting in lower construction and maintenance costs, improved fuel economy and allowing an increased load weight. The assembly includes a positive holding brake that eliminates blow-by of the rotating section and is rotatable in either direction without requiring being reset in a park position. Such a deck is especially useful on a tow truck.

Abstract: The present invention aims to apply a vertical load to a specimen with high precision even if the specimen shifts horizontally. A load application device includes: a hydraulic actuator which applies a load to a specimen; a support structural body which supports the hydraulic actuator along a vertical direction; a horizontal guide surface which guides the support structural body along a horizontal direction; and a bearing which is interposed between the support structural body and the horizontal guide surface and bears the support structural body so as to be horizontally shiftable relative to the horizontal guide surface. This bearing includes a plurality of spherical bodies supported so as to be independently rollable, and the plurality of spherical bodies are held in contact with the support structural body or the horizontal guide surface.

Abstract: A fixture includes a vehicle body and a tube connected to the vehicle body. The tube has an axis, and the fixture includes a piston slideably disposed in the tube along the axis. A seat belt D-ring is mounted to the piston. The tube and the piston each define holes positioned to be aligned with each other when the piston is in multiple positions along the axis in the tube. A pin is engageable with the holes when the holes are aligned.

Abstract: The present application relates to devices for determining inertia properties of an object, said devices comprising a support and a measuring platform which are arranged relative to each other in such a way that movements between two and five degrees of freedom are possible.

Abstract: In an engine test apparatus of a type to stop a carriage carrying an engine, by pressing a wheel of the carriage to a rail, the wheel and rail may be damaged if the wheel is pressed strongly. An engine test apparatus 1 is arranged to perform an engine performance test by moving a carriage 2 carrying an engine, along a rail 3, to the position of a dynamometer. Carriage 2 comprises a base 11 supporting the engine, casters 12˜45 attached to base 11, and a fixing portion 17 to position and fix base 11 on the rail. Casters 12˜15 include a spring 19 to be compressed when the base is fixed by the fixing portion.

Abstract: The invention relates to a wind tunnel balance, having at least one belt unit that has at least one belt unit frame equipped with at least one conveyor belt that is wound around at least two rollers. The wind tunnel balance also has at least one fastening device that is suitable for fastening a vehicle to the conveyor belt in a predetermined position, a frame, and a platform that is supported so that it is able to move relative to the frame; force measuring elements are provided between the platform and the frame and are able to detect forces between the frame and platform, and the fastening device is attached to the platform in stationary fashion. The invention permits a high-precision detection of aerodynamic forces in wind tunnel measurements or tests.

Abstract: Methods and systems are provided for evaluating a steering system of a vehicle, in which the steering system includes a steering column, steering rack, and pinion. The rack is manipulated as the steering system is mounted to a testing system. The steering column is also manipulated as the steering system is mounted to the testing system. Data is collected from the manipulating of the rack and the dithering of the steering column for use in evaluating the steering system.

Abstract: A hydrodynamic torque generator for test benches includes at least one inlet valve and at least one outlet valve, and a control device for valve positioning, the control device including an open-loop feed-forward controller and a closed-loop feedback controller.

Abstract: In a vehicle test system, a displacement degree computing unit computes degrees of six-degree-of-freedom displacements of each of second motion bases, which correspond to external forces of respective six degrees of freedom detected by a corresponding one of six-axis force sensors, on an assumption that each of the second motion bases has a virtual mechanical impedance. A MB second target value generator generates final position and posture target values for each of the second motion bases based on the position and posture target values for each of the second motion bases and the degrees of six-degree-freedom displacements of each of the second motion bases.

Abstract: An injector test stand for fuel injectors includes: a holder for fixing a fuel injector an injection chamber which is positionable relative to the fuel injector, and a variable injector mounting which includes a rotatable insert having at least one adjustable clamping jaw is accommodated in the holder.

Abstract: Test fixtures for automotive parts, methods of fabricating test fixtures for automotive parts, and methods of heat testing automotive parts are disclosed. A method of fabricating a test fixture for supporting an automotive part may include forming a plurality of vertical support blades. Each of the plurality of vertical support blades comprises a support portion contoured to correspond to at least a portion of an underside of the automotive part. The method further includes assembling the plurality of vertical support blades such that each vertical support blade is substantially parallel to and spaced apart from an adjacent vertical support blade. The method further includes attaching the plurality of vertical support blades to a base such that the support portion of each of the plurality of vertical support blades is positioned to engage the corresponding portion of the underside of the automotive part.

Abstract: The disclosed embodiments include a test stand (100) for the simulation of forces and moments introduced into a motor vehicle or into parts of a motor vehicle during driving operation. In order to allow a simulation of road journeys which is as realistic as possible, it being possible at the same time to dispense with vehicle-specific excitation or activation signals, there is provision, according to the invention, whereby the test stand (100) has at least one wheel contact plate (2) for receiving a vehicle wheel (1) and at least one first actuator (3a, 3b) connected at one side to the foundation (101) of the test stand (100) and at the other side to the wheel contact plate (2), for moving the wheel contact plate (2) along a first axis (L1), preferably along the vertical axis, relative to the foundation (101) of the test stand (100).

Abstract: A holding device for a fuel injector has a mounting device to accommodate the fuel injector, and a fixing device which has a first part and a second part, which are supported in a guidance in a displaceable manner with respect to the mounting device. The second part is fixable on the guidance and between the first part and the second part of the fixing device an elastic element is situated in such a way that it is in a position to press the first part of the fixing device against a fuel injector situated in the mounting device, in order to fix it in the holding device. Also described is a clamping device for fuel injectors having at least one holding device, which is fastened elastically to the clamping device.

Abstract: A test bench for motor vehicles and/or axles of motor vehicles for simulating gyroscopic torques of a rotating wheel includes a wheel replacement system connected to an axle of the motor vehicle. The wheel replacement system includes a wheel replacement mass and a driver for driving the wheel replacement mass. The test bench also includes an arrangement for applying testing forces, testing torques and testing movements in a longitudinal, lateral and/or vertical direction to the motor vehicle and/or axles of the motor vehicle. The driver is configured to set the wheel replacement mass in rotation. The arrangement for applying testing forces, testing torques and testing movements is configured to generate a gyroscopic torque of the wheel replacement mass which is set in rotation, by applying testing forces, testing torques and testing movements in the longitudinal, lateral and/or vertical direction to the motor vehicle and/or the axles of the motor vehicle.

Abstract: A vehicle test apparatus includes: a test article installation vehicle body to which four axles corresponding to four wheels that are a left front wheel, a right front wheel, a left rear wheel and a right rear wheel are attached, and on which a test article is installed; a first motion base that supports the test article installation vehicle body, and that allows the test article installation vehicle body to make motions of six degrees of freedom; and four second motion bases each of which supports a corresponding one of the axles, and each of which allows a corresponding one of the axles to make motions of six degrees of freedom.

Abstract: A rotation test stand for a test specimen includes a load device for generating a load for the test specimen, a test specimen accommodation for accommodating the test specimen and for transmitting the load to the test specimen as well as a measuring device for measuring a measured variable acting on the test specimen. Provision is furthermore made at a suitable location for a vibration damping device for damping vibrations, which arise in the test stand. The vibration amplitudes are to be reduced, in particular, by a torsional vibration damper or a linear vibration damper. The vibration damper can be disposed in the drive train or at the measuring device.

Abstract: The equipment for test stands of the braking system of vehicles, in particular for four-wheel drive vehicles, includes a bearing frame having a resting and rotation apparatus for a wheel of a vehicle, suitable for resting the wheel and for allowing the free rotation of the wheel during a test of the braking system of the vehicle, and a containment element associated with the frame and suitable for engaging onto a portion of the wheel to retain the wheel onto the resting and rotation apparatus during the test of the braking system of the vehicle.

Abstract: A roadway system for a vehicle and a method for testing a vehicle on a roadway system are provided. The roadway system and/or method include a platform having at least one movable endless belt configured to support a vehicle. A sensor assembly is configured to provide an output signal indicative of position, displacement, velocity and/or acceleration of the vehicle on the belt with respect to at least one reference axis. An autopilot system is configured to operate a component of the vehicle to control the vehicle on the belt with respect to the reference axis based on the output signal.

Abstract: A device for dynamically exciting a component, in particular a chassis component of a motor vehicle has an actuator (10) with a piston rod (20) and an actuator housing (30). A connecting element (40) is coupled to the piston rod (20) of the actuator (10). A coupling (50) is coupled to the connecting element (40) for connection to the component. The connecting element (40) is coupled to the piston rod (20) in such a manner that the coupling is substantially moment-free.

Abstract: The invention relates to a belt unit in a wind tunnel balance for motor vehicles, in particular for determining forces and moments acting on a motor vehicle in a wind tunnel, wherein an area exposed to wind is minimized by means of a trapezoidal support, which is raised with respect to a normal zero position, and appropriately adapted test stand covers. The wind-exposed area of the endless belt of the belt test stand can be reduced here to a value which is only slightly above the necessary wheel contact area (tire shuffle). As a result, error forces can be reduced further, so that the result is highly increased measurement accuracy.

Abstract: An injector test stand for fuel injectors includes: a holder for fixing a fuel injector an injection chamber which is positionable relative to the fuel injector, and a variable injector mounting which includes a rotatable insert having at least one adjustable clamping jaw is accommodated in the holder.

Abstract: The invention relates to a device for determining the inertial parameters of a body, particularly a motor vehicle. Said device comprises a receiving platform (P) on which the body (F10) can be placed. The receiving platform (P) is provided with a central, especially spherical joint (G00) about which the receiving platform (P) can be moved with three degrees of freedom (x, y, z) by means of drive units (Z1, Z2, Z3). The invention further relates to a method for determining the inertial parameters of a body, particularly by means of a device disclosed in one of the preceding claims. In said method, a control system is provided which allows a receiving platform (P) and a body (F10) mounted thereon to be moved about a central pivot (G00) with three degrees of freedom (x, y, z).

Abstract: The invention relates to a test stand (100) for the simulation of forces and moments introduced into a motor vehicle or into parts of a motor vehicle during driving operation. In order to allow a simulation of road journeys which is as realistic as possible, it being possible at the same time to dispense with vehicle-specific excitation or activation signals, there is provision, according to the invention, whereby the test stand (100) has at least one wheel contact plate (2) for receiving a vehicle wheel (1) and at least one first actuator (3a, 3b), connected at one side to the foundation (101) of the test stand (100) and at the other side to the wheel contact plate (2), for moving the wheel contact plate (2) along a first axis (L1), preferably along the vertical axis, relative to the foundation (101) of the test stand (100).

Abstract: A testing device for a torque converter having a turbine portion 2 and a stator portion 3, including a turbine shaft 4 rotatably supported by a first support portion 6, and a stator shaft 9 concentrically disposed on an outer circumferential side of the turbine shaft 4 and axially moveably and non-rotatably supported by a second support portion 8. The turbine shaft 4 has a central oil passage 4b and a splined portion 4a on the outer circumferential periphery which is engaged with a splined portion 2a of the turbine portion 2 when the turbine shaft 4 is axially downwardly moved. The stator shaft 9 has a splined portion 9d on the outer circumferential periphery which is engaged with a splined portion 3a of the stator portion 3 when the stator shaft 9 is axially downwardly moved. A spring 11 is provided, which biases the stator shaft 9 toward the torque converter.

Abstract: A test bench for motor vehicles and/or axles of motor vehicles for simulating gyroscopic torques of a rotating wheel includes a wheel replacement system connected to an axle of the motor vehicle. The wheel replacement system includes a wheel replacement mass and a driver for driving the wheel replacement mass. The test bench also includes an arrangement for applying testing forces, testing torques and testing movements in a longitudinal, lateral and/or vertical direction to the motor vehicle and/or axles of the motor vehicle. The driver is configured to set the wheel replacement mass in rotation. The arrangement for applying testing forces, testing torques and testing movements is configured to generate a gyroscopic torque of the wheel replacement mass which is set in rotation, by applying testing forces, testing torques and testing movements in the longitudinal, lateral and/or vertical direction to the motor vehicle and/or the axles of the motor vehicle.

Abstract: A test stand for motor vehicles, in particular a roller type or belt conveyor brake test stand, comprising a measuring device (2) that has a measuring sensor (1) for collecting test data, is characterized with respect to an especially flexible and quasi location independent operability by a chargeable energy accumulator (3) for providing the electric energy required to operate the measuring device (2) and by a feeding device (4) for feeding energy into the energy accumulator (3).

Abstract: The invention relates to a method or an arrangement for function checking of internal combustion engines in motor vehicles, in which an external testing and measuring system is connected via a diagnostic interface to an on-board diagnostic and control system, and after the start of the testing process, the testing system triggers control signals to adjust the defined operating conditions of the internal combustion engine, and performs and documents analyses. To ensure an automatic testing process, it is proposed to launch a safety routine in the diagnostic and control system that interrupts the automatic testing process when certain signals are present from on-board control and/or operating devices.

Abstract: The equipment (1) for test stands of the braking system of vehicles comprises a supporting element (2) associable with a test stand (A) of the braking system of vehicles, on top of part of measuring rollers (C). The supporting element (2) has a lowered portion (3) suited to accommodate resting a first wheel (D) of a vehicle while a second wheel (E) of the vehicle is resting on the measuring rollers (C) and is substantially aligned with the first wheel (D).

Abstract: A test stand sensor apparatus includes a sensor for acquiring data from the item under test and/or the environment, a power supply unit for converting electromagnetic radiation into electrical energy, and a unit for the wire-free transmission of sensor data and of a code which is characteristic of the sensor.

Abstract: A test stand for dynamic testing of an individual running gear component or of a complete axle system of a motor vehicle includes a test stand frame having. The test stand frame has a mounting area configured for mounting the complete axle system in the mounting area in a first installation direction. A fastening device is configured for fixed mounting of the individual running gear component on the fastening device in a second installation direction, the second installation direction being different from the first installation direction. An actuator is configured for dynamic excitation of both of the complete axle system and the individual running gear component. The actuator is configured to connect to the individual running gear component or the complete axle system in a region of a point of intersection of the first installation direction and the second installation direction.

Abstract: An apparatus and method for inducing waves within a container arranged to permit a through-flow of fluid flowing generally from an inlet of the container to an exit of the container, wherein the container has wave inducing means located at the exit of the container, the wave inducing means being operable to vary the area of the exit thereby inducing waves within the container. The apparatus may form part of a combustor test rig.

Abstract: A testing machine tests the durability of backer pads on the track shoe assembly and the surface of the road wheel. The test machine utilizes two eccentric drives to move a section of a road wheel to simulate actual vehicle conditions. A positioning system positions the track shoe assembly with respect to the road wheel to adjust the loading between the two components.

Abstract: The invention relates to a device for determining the inertial parameters of a body, particularly a motor vehicle. Said device comprises a receiving platform (P) on which the body (F10) can be placed. The receiving platform (P) is provided with a central, especially spherical joint (G00) about which the receiving platform (P) can be moved with three degrees of freedom (x, y, by means of drive units (Z1, Z2, Z3). The invention further relates to a method for determining the inertial parameters of a body, particularly by means of a device disclosed in one of the preceding claims. In said method, a control system is provided which allows a receiving platform (P) and a body (F10) mounted thereon to be moved about a central pivot (G00) with three degrees of freedom (x, y, z).

Abstract: A method for automatically identifying a type of vehicle on a test stand includes: a) supplying predetermined parameters characterizing the type of vehicle; b) providing a test stand encompassing a plurality of sensors; c) sensing at least some areas of a tire on the test stand; and d) determining at least one tire property from values sensed by means of at least some of the sensors. The properties determined in step d) are compared with the predetermined parameters, and the type of vehicle is assigned on that basis, or parameters of a new type of vehicle are defined if the properties fail to match the parameters.

Abstract: A rotation test stand for a test specimen includes a load device for generating a load for the test specimen, a test specimen accommodation for accommodating the test specimen and for transmitting the load to the test specimen as well as a measuring device for measuring a measured variable acting on the test specimen. Provision is furthermore made at a suitable location for a vibration damping device for damping vibrations, which arise in the test stand. The vibration amplitudes are to be reduced, in particular, by a torsional vibration damper or a linear vibration damper. The vibration damper can be disposed in the drive train or at the measuring device.

Abstract: A test stand for an internal combustion engine is provided with a drive (2) and/or load system (3), a force transmission device (4) for connecting the internal combustion engine with the drive and/or load system (3), and a sensor and evaluation system for automatically collecting and evaluating measurement variables, wherein the force transmission device (4) comprises a system for detecting torque and rotation angle (6), which system is coupled to the internal combustion engine in a torsionally stiff manner, to achieve a coupling between the test object and the system for detecting torque and rotation angle, which coupling is improved for exact measurements, the force transmission device has at least one vibration damper (7) which is arranged on that side of the system for detecting torque and rotation angle (6) which is opposite to the internal combustion engine.

Abstract: An aerodynamic test stand (1) is provided for determining forces acting on a vehicle. The test stand has a stationary floor (2), at least two supporting devices (4) for supporting the motor vehicle, and at least one band unit moving in relation to the floor, for influencing air flow behavior in the floor region. The band unit is composed, segment-like, of runway sections (9, 10, 11, 20, 21, 22, 23, 24, 25, 26, 27, 28) to accurately detect forces acting on the vehicle.

Abstract: A method for monitoring performance test stands having at least one load assembly, which is coupled to a test subject, such as an internal combustion engine, vehicle drive, or drive train, includes ascertaining multiple, possibly derived parameters, which characterize the current state of the test stand, and evaluating them automatically in regard to the stability of the operating state of the test stand. In order to allow reliable cognition of instabilities in performance test stands of greatly varying configurations in the typical control modes and the reliable online monitoring of the stability of the control circuits on performance test stands in real time with CPU use which conserves resources as much as possible, the standardized parameters are weighted and consolidated into a single index which is characteristic for the current state, and this index is provided for the display and/or as a control variable for the real-time test stand controller.

Abstract: The present invention relates to a comprehensive test bed for vehicle body, which comprises an vehicle body static strength testing apparatus, an vehicle body air tightness testing apparatus, an vehicle coupler strength testing apparatus and an vehicle body mode testing apparatus, wherein the tested vehicle body is provided with a strain foil and a displacement sensor; and the strain foil and the displacement sensor are connected with a data acquisition system. The comprehensive test bed for the vehicle body can perform an vehicle body static strength test on various rail passenger vehicles, an vehicle body steel structure vibration mode test, an vehicle body partial assembly vibration mode test and an vehicle body air tightness test, and can realize strength tests on partial key components of the vehicle body (a transition vehicle coupler, a return vehicle coupler, an vehicle body chassis cross beam, a hoisting structure, an end structure, and the like).

Abstract: A test system (1) is arranged for testing vehicle systems which comprise at least one sensor (20). The test system comprises a test stand (11) for accommodating a vehicle (2), an object (12) which is movable relative to the test stand, and a control unit (13) for controlling the movement of the object. The test stand (11) is provided with a speed measurement unit (14) for detecting the virtual speed (v) of the vehicle, while the control unit (13) is arranged for controlling the movement of the object in dependence on said virtual speed. The object (12) preferably is a dummy vehicle which may be pulled along a track (16).

Abstract: A test stand for motor vehicles, in particular a roller type or belt conveyor brake test stand, comprising a measuring device (2) that has a measuring sensor (1) for collecting test data, is characterized with respect to an especially flexible and quasi location independent operability by a chargeable energy accumulator (3) for providing the electric energy required to operate the measuring device (2) and by a feeding device (4) for feeding energy into the energy accumulator (3).

Abstract: The invention pertains to a vehicle testing platform for testing the electronic stability program (ESP) of a vehicle and a method of its use. The invention also relates to a retainer structure for holding a vehicle upon any vehicle testing platform.

Abstract: The equipment (1) for test stands of the braking system of vehicles comprises a supporting element (2) associable with a test stand (A) of the braking system of vehicles, on top of part of measuring rollers (C). The supporting element (2) has a lowered portion (3) suited to accommodate resting a first wheel (D) of a vehicle while a second wheel (E) of the vehicle is resting on the measuring rollers (C) and is substantially aligned with the first wheel (D).

Abstract: In a running test, vehicle wheels are mounted on rollers. Each roller receives torque corresponding to the running resistance, which is a value corresponding to the running resistance applied to the vehicle on actual ground. The actual friction coefficient between the wheels and the rollers is calculated. The running resistance is corrected such that the actual friction coefficient becomes equal to the friction coefficient on actual ground that is calculated based on the slip ratio of the wheels with respect to the rollers. This approximates the running resistance applied to the vehicle by the rollers to the running resistance applied to the vehicle on actual ground as the torque is applied to the rollers in correspondence with the corrected running resistance. This prevents the drive force produced by the vehicle in the running test from becoming different than the drive force that is produced when running on actual ground.