CDM 75L / NVH

2WD or 4WD rolling roads for light-, medium-, heavy-duty vehicles, motorcycles / ATVs and special vehicles for the reproducable indoor measurement of noise, vibration and harshness.

For the measuring and analysis of

External noises
Internal noises

Roll diameter 48" or 75"

Inline-design
4-motor-design (individual drive motors for ea. roll)
Motor-in-the-middle design (mim)
Different roller surface concepts
(e.g. ‚Hartley‘ design)
Special roll insulation to avoid ‚bell effects‘
Watercooled drive motors
Integrated lifting platforms or vehicle lifts
Special vehicle restraint system
Drive motors, rolls and test stand decking are isolated to reduce the backround noise level to a minimum 41 dbA at 50 km/h
Test speed up to 250 km/h
Various power- and environmental packages available (options)