Maturo FR-DYN-3t-F Free-Standing on Top of Hall Floor or Turntable

The Dynamometer FR-DYN-F is constructed as a freestanding dynamometer, which can be fixed onto a turntable or a stand-alone system. Two passive axles are used for vehicles with rear/front or four-wheel drive. The four independent roller pairs are free-running and operated by the vehicle engine.

Structure
The 4 independent roller pairs of the dynamometer are integrated into a “self-contained” frame, which minimize the dynamic energy output to the turntable or hall floor.

Rollers
The rollers are static heaved up to 2000 rpm and flame-coated.
The surface of the rollers is comparable with road surface.
Balance quality: Q 2.5 according to VDI 2060

Fig.: Double roller system

Wheel Base
The wheelbase is to adjust manually. The base must be adjusted according to the car wheel distance with a +/- 2 mm tolerance. Operation of the wheel base adjustment is only possible at a standstill of the dynamometer.

Loading and Unloading
To drive the car on the stand and into the rollers two free adjustable ramps and must be used. The ramps are removable while the test is running.

Fixing elements
The system is equipped with four lashing straps to fixing of the vehicle while running. Spring hooks allow an easy connection to the four fastening bolts. The fixing elements are integrated into the structure of the system and are adjustable to the specific vehicle sizes. The straps are made of electrically neutral material. Length adjustment: from 1.0 to 6.0 m Tensile strength: 5000 N

Fig.: Fixing system

Optional: Mechanical coupling of the axles
Both axles are firmly mechanically linked together for a synchronous operation of all rollers. This coupling prevents a response of all driving safety systems in the vehicle; e.g. ESP.

Fig.: Mechanical coupling of the axles

Option: Cooling Fan System
Shielded fans provide a sufficient cooling for the tyres and the motor of the vehicle under test.
The plastic air scoop on top of the turntable is used to detour the airflow.
The fan speed can be set either proportional to the roller speed (up to 60 km/h) or to a
constant speed by the NCD Controller.

Fig.: Cooling fan system