Automotive and telecommunications: ConVeX C-V2X project completed
The tests were designed to provide additional evidence of the complementary nature of direct short-range and cellular wide-range communication with C-V2X and have yielded results that demonstrate the reliability and performance of V2X technology. Organizations formed the Connected Vehicle-to-Everything (V2X) of Tomorrow (ConVeX) consortium in December 2016 and have since then successfully completed and analyzed implementation and performance tests under realistic driving conditions.
During the project, ConVeX, which is co-funded by the German Federal Ministry of Transport and Digital Infrastructure (BMVI), has tested and demonstrated several use cases for C-V2X, including vehicle-vehicle (V2V) and vehicle -a- Infrastructure direct communication (V2I) operating in 5.9 GHz ITS frequencies, as well as network-to-network area-vehicle communication (V2N). For these tests, Audi vehicles and SWARCO's intelligent road infrastructure were equipped with C-V2X technology based on the Qualcomm 9150 C-V2X platform.
ConVeX has studied the reliability, range and performance of the direct communication C-V2X using 5.9 GHz vehicle-to-vehicle and infrastructure at a variable speed. The tests have provided a reliable reception to 100% of the safety messages in terms of the visibility down to 1.2 km , with the distance limited by the length of the roads of the test. The test was carried out with the speed of the vehicle between two vehicles travelling in opposite directions up to 430 km / h. These tests were conducted at two points on German motorways A9 and A6.
The tests were also conducted in urban conditions with crossings completely “blind” and have shown a minimum distance of 140 m with safety messages delivered to the 100% reliability for the communication V2V, which underlines the high effectiveness of direct communication C-V2X on more use cases , for example, Intersection Movement Assist (IMA) Left Turn Assist (LTA) and Forward Collision Warning (FCW).
in addition to the test in the real world, the technical University of Kaiserslautern has conducted extensive simulations to confirm the excellent performance in the field of C-V2X. The test V2N exploited a network Ericsson 5G. Thanks to the characteristics of the network, the traffic information is constantly provided with low latency, and high reliability over intervals are arbitrarily long, determined by the needs of the application, rather than by the ability of communication.
During the trial, ConVeX has also demonstrated the reliability, range and performance of the communication technology with the first demonstration of cross-border in the world for direct communication C-V2X vehicle-to-vehicle and infrastructure through the three borders trans-european, including France, Luxembourg and Germany . The detailed results of the project from this trial, as well as all the related documentation, are available on the website of the initiative .
