ATE Test Benches

Modern combustion engine designing, with emphasis on low consumption and low emission, usually brings along increased cyclic irregularities which lead to the animation of the vehicle powertrain. Especially the loose components brought into motion inside the transmission cause a noticeable rattling noise. The isolated testing of these rattling noises provoked us to develop the ATE test bench (Aechoic Test Chamber for Transmission with Engine Torque Pulsation Simulation).

ATE Test Benches

This test bench consists of an acoustic chamber with half anechoic characteristics in which airborne noise measurements with 1 meter distance can be performed on the transmission. The transmission is connected to an exterior electric driving engine and output engine through an extreme rigid CFK-tubular shaft. The in- and output side of the ATE are decoupled through a dual mass fly wheel. Due to the drive motor, combustion engines with up to 4000 rpm cyclic irregularities can be simulated. The torque value of the output engine is high enough to reliably prevent tooth lift off of the wheels of the shifted gear. Without the generation of cyclic irregularities the test bench can be used for other investigations for example "Gear Whine".

In diesem For more information please download the data sheet (150 kB).