Chassis dynamometer in semi-anechoic chamber

The 6NAPSE Group has a chassis dynamometer in a semi-anechoic chamber for vehicles testing.

Dynamic tests on motor vehicles

The CEVAA, test and expertise center of the 6NAPSE Group, has been equipped, since its creation in 1999, with a chassis dynamometer in a semi-anechoic environment. It allows tests to be carried out on vehicles under dynamic conditions. Its use is mainly oriented towards the fields of acoustics and vibration, but it can also be used for mechanical reliability measurements or endurance tests.

The test facility is only suitable for two-wheel drive vehicles and can accommodate sizes ranging from microcars to the largest utilities. The bench can carry out tests according to precise and repeatable regulation conditions of road law simulation, speed, force or acceleration. Its two rollers are independent and each equipped with an electric motor.

Characteristics

Vehicle transmission: Traction and propulsion
Maximum speed in tests: 200 km/h
Maximum force per motor reduced to the rim: 3500 N up to 80 km/h
Nominal power: 2 x 83 kW
Admissible acceleration for 3000 kg: 4 m/s²
Capacity: 3500 kg
Vehicle size: from microcar to bulky utility vehicle

Applications

Vibration measurements on GMP and on body
Acoustic measurements: vehicle interior noise, radiated noise
Intake and exhaust vent noise
Transfer Pathway Analysis
Operational deformation
Diagnosis of vibro-acoustic problems

NEW : a functional, modern and optimized system in 2021, for industrial use

Steering system
- High-performance PC, running Windows 10 RTX 64-bit, for faster data and task processing
- MORPHEE 2020 control software, version 3.3, which simplifies the use of the bench
- BECKHOFF acquisition and control relays connected in EtherCAT, for better communication between the machines and the cockpit
Machine control
- Integration of a torque meter (± 5000 N.m) on each transmission shaft
- Servo-control by direct measurement of torque (formerly calculated by current consumption)
- Better regulation accuracy (± 5% of full scale)

The use of the chassis dynamometer can be the subject of a specific estimate which includes the control of the bench by a CEVAA technician. This will allow you to save time in carrying out the tests.