Car-2-Car communications demonstrated by BMW, VW, Nissan and GM

Considered as the following up activities from the spectrum regulation of 30MHz ITS frequency band at 5.9GHz in EU, BMW, VW, Nissan, and GM have demonstrated their active safety systems based on vehicle-to-vehicle communication technologies:

BMW announces Car-2-Car communications development

*Picture from motorauthority

The Car-2-Car Communication Consortium (C2C-CC) consisting of various European manufacturers, including BMW, Daimler, Renault, Fiat, VW, Honda, Opel, Volvo and Audi has been working on the European Car-2-Car (C2C) communication system that has standard interface agreed by all carmakers and a uniform frequency radio frequency enable the cars to communication effectively.

The recently approved the 5.9 GHz frequency band specifically for C2C communications in Europe marked a key milestone in the standardiyation process for C2C industry.

BMW's C2C system enables vehicles to communicate with other vehicles in the vicinity for the purpose of danger warning, and traffic information exchange. The communication is performed using the Wireless Local Area Network (WLAN) technology, which organizes vehicles into ad-hoc wireless network on the road.

Similar system has been developed not only by the partners from C2C-CC, e.g. VW, but also by carmakers outside of the initiative, such as Nissan and General Motors. The systems have to be compatible with each other for being truely effective.

Source and picture courtesy: motorauthority

Volkswagen's Car-2-Car system begins testing


Volkswagen performed a test of its Car-2-Car communication system with a Passat and a Golf, which both use the WLAN technology for information exchange between the cars. Each vehicle can access to the car bus throught the "Car Gate" and get a abstract of car data, such as speed, wheel speeds or status of the hazard flashers, and exchange the information with adjacent vehicles in order to help drivers to aviod adverse situations.

For more information and photo courtesy: motorauthority

Related readings:
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GM develops second-generation car-to-car communications system