The Conception, Description, and Application of a New Vehicle Endurance Test System at AUDI NSU 820094

The Audi road simulator incorporates three hydraulic servo actuators applying forces at each tire contact point. In addition the steering wheel and the brake are operated with two further actuators; thus the test rig has 14 actuators working under “remote parameter control”. The vehicle on the test rig is unrestrained so that the inertia forces are the only reaction forces, thus giving the best possible simulation.
The paper describes the test rig and reports on initial experience and results.


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