Abstract: An elevator includes an evaluation unit. A pair of position pick-ups are connected to the cable assembly and/or driving pulley of the elevator and coupled to the input of the evaluation unit. The elevator is accelerated or decelerated for checking adhesion of the cable onto the driving pulley (traction sheave). The motion parameters of the cable assembly and the driving pulley are sensed separately, and the drive capability can be determined therefrom.

Abstract: Apparatus and method for verifying effects of a motor vehicle accident involving at least one vehicle adapted to be advanced towards a pre-defined point of collision at a predetermined speed. The apparatus and method provides for the employ of a drive mechanism for setting the vehicle into motion.In order to be independent of the type of vehicle and at the same time to be able to achieve a realistic accident sequence including the simulation of different braking operations and speed variations as well as a start motion procedure building up to a preselected speed, the vehicle's own drive mechanism, an optionally provided clutch and the vehicle's brake are adapted to be controlled by actuators connected to a fluid pressure actuating and control system including a supply reservoir and a number of selectively controllable valves for the simulation of an accident.