Central Electronic Control Unit for Infotainment and Additional Vehicle Functions
The heart of the ICT infrastructure for small vehicles is a central ECU that contains all of the safety-critical and non-safety-critical functions. Special attention must be paid to protecting the safety-critical functions. In ACM this was achieved prototypically by separate hardware and within ACM-2 this will be enabled by using virtualization that ensures a reliable and predictable execution process. Moreover, in order to reduce the energy consumption of the in-vehicle ICT network, researchers are working on a process that makes it possible to estimate the energy consumption in the early phases of development. Energy efficiency for applications that operate all the time is an especially important issue for electric vehicles.
In addition to well-established interfaces, the central ECUs will also be equipped with UMTS, WLAN and car2x communication capability. The central ECU features its own Linux-based partition on which a wide range of apps can be made available. In this environment, the so-called vehicle service plays a key role in allowing existing vehicle functions or information to be easily integrated in external applications.
The concept of three different protected areas in the central electronic control unit affords a maximum degree of flexibility: a protected real-time area for the vehicle’s driving functions, an open area for the operator of the service in which apps are installed and an area for interaction with the user’s smartphone.