4 wheels, each with attached torque motor in combination with an optional turntable to perform steer- and drive simulation testing



Torque Wheel Dynamometer TWDM

The ViL platform is based on an innovative and patented concept for a Torque-Wheel DynamoMeter (TWDM) consisting of four wheels with integrated torque motor in combination with an electromechanical turntable. The wheel hub of the TWDM can be rotated relative to the rim when the wheel is in a standing position.


In contrast to existing test benches or roller dynamometers, no structural measures are necessary for the TWDM. By using optional electromechanical turntable plates, different steering angles can be set, which also allows speed-dependent steering counter forces to be taken into account. Accordingly, the steering of the vehicle remains in its original state with the TWDM and does not need to be manipulated, which is a huge advantage compared to the state-of-the-art test stand technology. Even incline, decline, tyre slip on ice or snow, can be replicated by using the TWDM in combination with a powerful real-time road drive environment simulation. The resulting ViL platform is therefore particularly well suited for the evaluation of automated driving functions. Optionally in combination with ADAS hard- and software.




  • Easy installation, no consturctural measures necessary
  • Free accessibility for stimulation of ADAS sensors such as radar, lidar and cameras, GPS, G5 ... communication systems
  • Simulation of cornering, lane change, automatic parking/unparking, distance warning. Emergency braking behavior, etc.
  • Can also be used optionally for EMC testing
  • Sensors for speed measurement and torque measurement are included


  • Steer- and Drive Simulation Testing
  • R2R testing
  • ADAS testing
  • EMC testing
  • E-Mobility testing





Variants of the TWDM (Extracts)

Tyre size 215/30 R20 (Outside diameter ca. 640 mm) is available for all variants.


TWDM Air Cooled (Standard / Base Configuration)


  Model 1 Model 2 Model 3
Max. power [kW] 6 10 19
Max. torque [Nm] 65 123 226
Max. speed [min-1] 1860 1770 1830
Nominal torque [Nm] 14 22 28,5
Nominal speed [min-1] 400 400 400



TWDM High Speed (Customized on Request)


  Model 1 Model 2 Model 3
Max. power [kW] 41 80 93
Max. torque [Nm] 432 864 1300
Max. speed [min-1] 3000 3000 2400
Nominal torque [Nm] 260 519 792
Nominal speed [min-1] 1050 1060 777



TQDM High Torque (Customized on Request)

  Model 1 Model 2 Model 3
Max. power [kW] 39 74 89
Max. torque [Nm] 800 1600 2400
Max. speed [min-1] 1800 1800 1350
Nominal torque [Nm] 525 1050 1590
Nominal speed [min-1] 460 467 343



Vehicle in the Loop ViL

Design of Control



ADAS Sensors