IBS
FAILURE BEHAVIOR

In addition IBS has a very safe mechanical back up. In comparison to the series system the initial force as well as the pedal force characteristics change very little. This is crucial to avoid driver confusion and to prevent accidents.

A technical illustration of a mechanical automotive part, likely a power steering pump or similar component, focused on its detailed internal and external features.
A graph titled 'Fail-Safe Design' with a grid, axes labeled 'F_p' and 'S_p', but no data points or curves are present. 
FP     Pedal force
SP     Pedelweg