Reliable communication in autonomous electrical cars
Funding by „Mikroelektronik aus Deutschland Innovationstreiber der Digitalisierung" des Bundesministeriums für Bildung und Forschung (BMBF)
In the BMBF project RobKom, the ICE, together with partners from Industry and other Universities in Germany, is exploring ways of solving technical challenges in electrified vehicles. Automating and electrifying vehicles requires a multitude of additional sensors in the car, which produce and communicate huge quantities of data to be transferred in real time. In addition, to improve the efficiency of the power electronics, wide bandgap semiconductors such as SiC will be used, which, with simple control, lead to massive electromagnetic emissions (EMI).
Objectives and Approach
In order to bring these competing demands on top of each other, a cooperative operation of power and communication electronics is explored. One approach is that the communication electronics report a degradation in data transmission to the power electronics, which then adjusts the switching behavior to emit significantly less electromagnetic emissions at slightly lower efficiency. Another way to make communication more robust is to monitor the EMI and adapt the transmission schemes to reduce the packet loss.
The ICE is involved within the consideration of wireless transmission of e.g. wireless sensors. To improve the transmissions scheme of WiFi or LTE for example, the EMI will be characterized first. A demonstrator is planned to implement algorithm and/or protocol enhancement based on Software Defined Radios.
- Aixcontrol – Gesellschaft für leistungselektronische Systemlösungen mbH, Aachen
- EMC Test NRW GmbH, Dortmund
- NXP Semiconductors Germany GmbH, Hamburg (Coordinator)
- Robert Bosch GmbH, Reutlingen
- RWTH Aachen: IAS, ISEA
- SiL System Integration Laboratory GmbH, Paderborn
- Technische Universität Dortmund
- TE Connectivity GmbH, Bensheim