The speed indication function is equipped with various types of speedometer depending on the vehicle model.
The instrument cluster receives the position signal tw from the antilock brake system (ABS)/automatic stability control (ASC)/dynamic stability control (DSC) control unit. In this way, the instrument cluster controls the speedometer, total odometer reading and trip odometer reading displays.
The instrument cluster derives the speed from the position signal tw and from the position pulse number (K-number ) stored as coding data in the instrument cluster ). In addition, the instrument cluster makes available a speed signal (speed-A ) for the connected control units. The speed information is also made available in the form of a telegram to the connected bus systems.