Technology

Overtaking Distance Sensor

A nightmare: when overtaking, the distance sensor fails. The passing Wizard turns off. But the driver can not intervene. Highly automated driving must also work for a few seconds when systems fail. Working on Fraunhofer engineers from Munich. They present their fail-safe electrical systems at the Embedded World.Cars will soon own Park in the parking garage, they are driving on the highway in columns and overtake independently. However only makes sense if the autopilot is also really reliable. The control system fails, the person must intervene. Only what happens if valuable seconds until then?

Then smashes the car on the front man or flies out of the curve?

That all functions of an autopilot with an error in the wiring just switch itself might not be the solution. Instead, the car must be briefly capable of independently sure to continue. Fraunhofer researchers have developed such a fail-safe on-board network and will present it at Embedded World in Nuremberg, Germany from February 23 to 25.
On-board systems need to respond so long independently, until the driver catches

The scientists from the Fraunhofer Institute for embedded systems and communication technology ESK in Munich is aimed at the development of a system that is “fail operational”. This means that the vehicle can respond so long independently after the failure of a control unit, until the driver takes the car themselves.

To keep critical functions continue to be manageable, the electrics and electronics in the position must be to compensate for error. The best not only for individual functions, but in the entire system.

ESK team in the framework of the SafeAdapt project funded by the European Union has pursued his research. Here searches with ten partners from six countries, methods and solutions for a resilient software architecture. Now apparently the Fraunhofer team succeeded to develop such architectures and so that they are realized with different ECUs and heterogeneous technologies.

In particular their solution is compliant with AUTOSAR scientists point out. This development partnership in the automotive industry wants to create an open and standardized software architecture and establish.

Steering and braking, even if the systems problems

The solution actually looks like you want to show the ESK-team on the “embedded world” 2016. A model car will be on the Fraunhofer Association booth, which is equipped, but linked with a driving simulator not only with control units. By car engineers want to show how their software works, which is able to keep essential systems such as steering and braking functions properly even after failure of individual sensors or functions.

Want the scientists a test vehicle build next and also human intervention is a driving simulator, where required.

Project partners are the Institute and company CEA LIST (France), Delphi (Germany), DuraCar (Netherlands), FICO mirrors (Spain), Tecnalia research & innovation (Spain), ensures (Italy), Siemens (Germany) and TTTech Computertechnik (Austria) when developing resilient electronics systems in addition to the Fraunhofer ESK.