Apparatus and method for a driver assistance system of a vehicle

It is proposed a device (100) for a driver assistance system (300) of a vehicle (200), wherein the driver assistance system (300) comprises a number of driver assistance applications (FA). The device (100) includes a plurality of sensors (101, 102), a first processing unit (110), a second arithmetic unit (120) and a control unit (130) on. associated with the respective sensor (101, 102) to output a sensor signal (S1, S2) is arranged, wherein the respective sensor signal (S1, S2) a respective formal description (B1, B2) of the sensor signal (S1, S2). The first calculation unit (110) is arranged to process the sensor signals from the sensors (101, 102) output (S1, S2) based on the associated formal descriptions (B1, B2) to merge and depending on a fused sensor signal (FS) to be output. The second arithmetic unit (120) is adapted to a system model (SM) at least in dependence on the output merged sensor signal (FS) to be calculated. The control unit (130) is adapted to at least one of the driver assistance applications (FA) based on the calculated system model (SM) to be controlled. By the use of the formal descriptions of a modular and hybrid fusion of sensor signals of different sensors. Furthermore, a driver assistance system, a method and a computer program product for operating a driver assistance system is proposed.