The term chassis/suspension (or "running gear") describes the entirety of all moving parts of a vehicle that serve to connect it to the road.

The suspension (i.e. running gear) includes wheels, wheel suspension, spring suspension, shock absorbers, steering and the service brake.

The brake and steering controls, like the engine, transmission and drive train, are not part of the suspension. On passenger cars with unitized body (i.e. self-supporting), the suspension is not considered part of the chassis, but is viewed as an assembly in its own right.

Comfortable, driver-active and safe "steering feel" is largely governed by contact with the road. Speed-sensitive steering ensures that this subjective feel adapts optimally to all driving situations – from parking to fast motorway driving. Our proportional valves control this complex process imperceptibly and highly dynamically – operating with maximum reliability in their light, compact design

Parking in confined situations is very tiring on the arms. However, if a vehicle is equipped with active steering as well as speed-sensitive steering, the steering wheel turns can be reduced to a third. Our on-off solenoids perform a safety function in the event of system failure, and are therefore vital elements.

In critical situations, human reactions and the force used to operate the brake pedal are often simply not enough to prevent a collision. In such cases our on-off solenoid activates the brake servo, which helps to reduce the braking distance by up to 40%. Our solenoids are characterized by a very fast response time and exceptional quality values. An absolute prerequisite for a safety component that is fitted in over a million vehicles around the globe each year.