| abstract |
Device for controlling control units in a vehicle electrical system of a motor vehicle, in which the electrical system has a bus system, which is divided into subnets of buses with groups of control devices for controlling operations and in which the control units via at least one access to data transmission by means of a test device is controlled , wherein the bus system is preceded by a multi-functional data transmission device, to which the subnets can be connected directly in parallel and over the multiple, the distributed on the connected subnets controllers are timed in parallel. Device for controlling control devices, wherein the subnets are structured by means of a hierarchically predetermined criteria ranking, which takes into account the communication required between the individual control devices within the subnets and between the subnets and the data to be transmitted to the individual control units. Method for controlling control units, wherein via a multifunctional data transmission device, a plurality of subnets of the electrical system arranged in the control units is addressed in parallel in time on the connected subnets. |