Braking system for an automotive vehicle

A braking system for an automotive vehicle comprising a connecting mechanism (26,36,40;250,252,258,284;26,250,252,284,310;26,36,370-378;26,36,400-4 08), which allows relative movement between the brake operating member (10) and the input rod (24) of the pneumatic booster (12), and a signal generating device (50,270,340,380,410) located at the connecting mechanism, generating an output signal in dependence of said relative movement.