NVH

Vibration and Ride Comfort Testing: NVH and Road Simulation

CSI provides advanced vibration analysis and ride comfort testing services, supporting automotive manufacturers in evaluating NVH (Noise, Vibration, Harshness) performance and passenger comfort.

The laboratory features a semi-anechoic chamber with a 4WD chassis dynamometer, enabling detailed analysis of powertrain-induced vibrations and vehicle comfort.

Road simulation and durability testing

Using a 4-Poster test rig, CSI can:

  • Accurately reproduce real road profiles
  • Simulate controlled and repeatable driving conditions
  • Perform accelerated durability tests, equivalent to over 100,000 km mileage

Climate-controlled testing

Tests can be conducted under controlled environmental conditions, adjusting:

  • Temperature
  • Humidity
  • Solar radiation

to ensure long-term reliability and product quality.

Key testing activities

  • Vibration analysis of vehicle and powertrain
  • Dynamic ride comfort evaluation
  • Road simulation and accelerated durability testing
  • Climate-controlled testing

Squeak & Rattle and modal analysis

CSI also performs:

  • Squeak & Rattle testing to detect unwanted noise from components and assemblies, both initial and after fatigue cycles
  • Experimental modal analysis on vehicles, subsystems, and components to identify:
    • natural frequencies
    • vibration modes
    • damping coefficients

These analyses support the optimization of vibro-acoustic performance and ride comfort.

 The CAE service of CSI provides a full support to customers during all the vehicle development phases, from the Concept to the Homogolation/Self-Certification. CSI, known internationally as Euro NCAP laboratory and as a competence hub, with high experienced know-how and skills in the automotive field, offers its experience in the management of turn-key projects with a team of professionals assigned to the project. The BU Conformity Assessment of CSI offers certification, inspection, testing and training services specific for the Automotive Sector. The training courses done by IMQ Group are a reference point in the training and continuing education of professionals and companies technical personeel for years. The cyber security in the automotive field impacts the protection of all the important elements in the vehicle from the treats to the IT safety: a cyber security assessment is required to analyse all the dangers and evaluate risks linked to the exposure to internet of the connected-car.