Skip to main navigation Skip to main content Skip to page footer
Beispielfoto von Fahrwerksbestandteilen

Vehicle Dynamics

advanced by design

Chassis and suspension systems

What is a chassis?

All components of the chassis work together to ensure the safety, comfort and dynamics of the vehicle. The chassis has the task of damping the body vibrations caused by the unevenness of the road surface.

The main components of the chassis include suspension, damping, steering, brakes, axles, wheels, suspension as well as control and driver assistance systems.

The chassis has the task of ensuring constant contact between the wheels and the road surface in order to transfer drive, braking and steering forces and thus maintain control of the vehicle.

Focus product area of RAPA Automotive

Chassis components since the end of the 1990s

First chassis solutions at RAPA Automotive: valve blocks for air suspension systems and products for the chassis area with hydropneumatic suspension

Expansion of the areas of expertise

At the beginning: pneumatic and hydraulic components

Today: expansion to electro-hydraulic and smart components and systems

Focus on chassis

Chassis components and systems form the main part of the RAPA product portfolio

→ Independence from specific drive types

Solutions for customers

Further developments and innovations based on customer inquiries and on our own initiative
→ Portfolio with modular building block structures based on the product family approach

Differentiation between different chassis systems

The various types of chassis and their compositions are divided into the following categories:

 

Passive systems
 
Adaptive / Semi-active systems
 
Active systems
 
  • No supply of energy
  • Compromise in terms of comfort, dynamics and safety
  • Spring and damping properties cannot be changed 

     
  • Low energy supply
  • Limitation or deceleration of 
    body movements
  • Continuous adjustment of passive spring and damping properties 
    (switching between characteristic curves)
  • External energy supply
  • Active control of suspension components
  • Maximum reduction of body movements
     

 

The complexity of the chassis depends on the requirements of the vehicle class, dimensions, drive concept, steering and the desire for comfort and dynamics. The more comfortable, dynamic and safe the vehicle, the more complex and expensive the suspension system becomes.

Areas of expertise at RAPA Automotive

Air suspension systems

Learn more

Level control

Learn more

Damping systems

Learn more

Active chassis systems

Learn more