Method for operating an assistance system, and assistance system

A method for operating an assistance system for a vehicle, comprising

• controlling the assistance system by a control device comprising a processor or electronic control unit,
• capturing the environment by multiple sensors, wherein
• a first sensor set which comprises at least one sensor of the sensors for capturing the environment, and
• a second sensor set which comprises at least one sensor of the sensors for capturing the environment, wherein
• enlisting sensor signals of the first sensor set in order to create an environmental model,
• carrying out at least one of trajectory planning or driving functions of the assistance system on the basis of the environmental model, and
• routing, by a sensor signal path switch, sensor signals of the second sensor set either via a main path to signal processing of the environmental model or via a safety path to the signal processing of a plausibility check of the planned trajectory,
• providing a mode manager which is configured to recognize assistance functions and assistance functions to be automatically activated, and to establish a necessity of whether the safety path is required or not on the basis of the recognized assistance functions.