Abstract: The invention relates to a method for testing a vehicle comprising a vehicle test stand. Said vehicle test stand comprises a cooling agent and the vehicle comprises a tester with a cooling agent circuit. The cooling agent with the cooling agent circuit of the tester is connected to the tester for exchanging heat. The invention also relates to a vehicle test stand.

Abstract: A method and vehicle test stand comprising at least one actuator for moving the vehicle in a longitudinal direction. During the test, a rotational movement which is carried out by a wheel or a powertrain of the vehicle is measured in real time, a longitudinal acceleration corresponding to the measured rotational movement is ascertained, and the at least one actuator is actuated based on the ascertained longitudinal acceleration. In at least one example, the vehicle may be connected to an acceleration sensor, an acceleration signal of the acceleration sensor is detected during the test and a low-frequency longitudinal acceleration component is calculated based on the ascertained longitudinal acceleration and a position control loop for controlling the actuator, and the vehicle longitudinal acceleration is ascertained based on the detected acceleration signal and the calculated low-frequency longitudinal acceleration component.

Abstract: The invention relates to a method for damping vibrations while checking a drivetrain which has at least one shaft and to a device for carrying out the method. The shaft is connected to at least one drive or load machine for adjustment of a drive or load torque, a target value of the drive or load torque being specified for the machine. A shaft torque which is dependent on the relative rotation between two points on the shaft is measured, and the measured shaft torque as such is applied to the target value of the drive or load torque.

Abstract: The invention relates to a method for damping vibrations while checking a drivetrain which has at least one shaft and to a device for carrying out the method. The shaft is connected to at least one drive or load machine for adjustment of a drive or load torque, a target value of the drive or load torque being specified for said machine. A shaft torque which is dependent on the relative rotation between two points on the shaft is measured, and the measured shaft torque as such is applied to the target value of the drive or load torque.

Abstract: An apparatus and method for generating rotary oscillation with two shafts pivotable relative to each other. An end section of a first shaft is accommodated in an end section of a second shaft so as to form an air gap. One of the two shafts has a magnetic field generator of substantially constant field strength, and the other shaft has conductors which generate a magnetic field and to which current has been variably applied to pivot the shafts relative to each other.

Abstract: An apparatus and method for generating rotary oscillation with two shafts pivotable relative to each other. An end section of a first shaft is accommodated in an end section of a second shaft so as to form an air gap. One of the two shafts has a magnetic field generator of substantially constant field strength, and the other shaft has conductors which generate a magnetic field and to which current has been variably applied to pivot the shafts relative to each other.