Abstract: A method for determining driving resistance in an insufficient warm-up state includes measuring driving data including at least first rolling resistance when a vehicle travels to include at least one constant-speed driving section in an insufficient warm-up state and determining a second rolling resistance based on the first rolling resistance measured in the constant-speed driving section, wherein the second rolling resistance is a rolling resistance predicted in the sufficient warm-up state.

Abstract: The disclosed embodiments relate to a test stand for the simulation of the vibration behavior of a vehicle. The test stand comprises a receiving element for contacting with a vehicle and an excitation system for the application of excitation frequencies. The excitation system comprises a main actuator system with at least one movable main actuator and an additional actuator system with at least one movable additional actuator, the additional actuator system being connected to the main actuator system.

Abstract: A test bench, in particular a convertible wind channel balance, including a lifting frame for lifting at least one wheel belt unit, wherein the wheel belt unit has at least one belt which is looped around at least two rollers, a weighing platform, which is mounted so as to be relatively movable in relation to a test bench frame, at least one force sensing member arranged between the weighing platform and the test bench frame in order to sense forces between the weighing platform and the test bench frame, wherein at least one self-centering docking member is provided between an auxiliary frame and the weighing platform.

Abstract: The device described herein and the associated method relate, in particular, to a holding device for a wind tunnel test stand 1, in particular for a wind tunnel balance. The device may comprise a holding base 5a, 6a, which may be arranged outside of a conveyor belt 3 of the wind tunnel test stand 1, and a support element 7 having at least two ends 7a, 7b. Via a connection element 13, one end of the support element 7 may be connected to a wheel 22 of a test object 4. Furthermore, a support device 8 may be provided, which may be connected to the support element 7 in such a way that a change in a rotational orientation of the support element 7 can cause a lifting or lowering movement of the support device 8.

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: A test bench, in particular a convertible wind channel balance, including a lifting frame for lifting at least one wheel belt unit, wherein the wheel belt unit has at least one belt which is looped around at least two rollers, a weighing platform, which is mounted so as to be relatively movable in relation to a test bench frame, at least one force sensing member arranged between the weighing platform and the test bench frame in order to sense forces between the weighing platform and the test bench frame, wherein at least one self-centering docking member is provided between an auxiliary frame and the weighing platform.

Abstract: The invention relates to a method for manufacturing road surface covering elements that can be mounted on rollers of chassis dynamometers, including detection of a surface contour of a road surface covering within an essentially strip-shaped section. The method also includes production of a digital image of the detected section and manufacturing of the road surface covering element according to the digital image by means of a three-dimensional manufacturing technique.

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: 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: 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 actuating device for a robot driver that reduces the effort involved for setting or learning of the actuating means. In addition, the effort for determining the pedal force can be reduced. The actuating device comprises at least one actuating means, which has at least one control rod comprising an actuator region and a contact element, wherein the contact element can be caused to connect to a pedal and the control rod in the actuator region is a rotationally symmetrical component which is slidably received in an actuator housing in the actuator region. In the actuator region the control rod contains a first element, and the actuator housing has a second element which is provided in an outer circumferential region of the first element, wherein the first element and the second element form an electromagnet force-generating means for moving the control rod.