Especially in the automotive environment, many different sensors are used, for example for temperature measurements. Because of the large quantities and the large number of sensors, there is a need for simple and very cost-effective solutions for transmitting the data. Various bus systems have been designed precisely for this purpose and are used in almost every type of vehicle.
The second important aspect is the interconnection of the many different control units in the vehicle. The complete vehicle system has many overlapping functions that interlock with each other. This implementation of the vehicle functions in electronics and software often is distributed over various control units, which then have to communicate with each other in real time. This is done via distributed and interconnected systems that communicate with each other via bus systems.