Automatic transmissions are subjected to extensive tests prior to installation into a vehicle. During these tests, all functions
are dynamically checked under simulated road conditions.

Typical tests are: Noise, correct shift points, shift time, or in the case of CVT transmissions, monitoring of proper gear ratio in dependence of road speed, gas pedal and gear lever position.

  

		(Fig.) Detailed view of a final test stand for CVT automatic transmissions