Press release #Mobility

Continuous vehicle-to-vehicle communication for automated driving

Innovation project investigates methods for fast, secure data communication

  • Bosch, Escrypt, Kapsch, Nokia, and Deutsche Telekom collaborate as partners in the publicly funded CONCORDA project in a consortium headed by Ertico
  • Continuous, secure data transmission supports assistance systems in safety-critical driving situations
  • Project results provide basis for future automated driving functions
Cornelia Dürr

Cornelia Dürr


Stuttgart – One of the cornerstones of automated driving functions is secure data communication between road users. With the additional information supplied through such communication, automation systems can adapt their driving maneuvers to suit the current driving situation better than would be possible using only the vehicle’s own sensor technologies. How the flow of data in vehicle-to-vehicle communication can be kept stable and secure is a matter that Bosch, Escrypt, Kapsch, Nokia, and Telekom have been investigating over the past three and a half years in the European innovation project CONCORDA in a consortium. This was headed by Ertico – ITS Europe, a public/private partnership pursuing the development and deployment of intelligent transport systems. The primary focus here was to investigate suitable ways of ensuring continuous data transport between the road users in the vicinity of the vehicle. Previous research has concentrated mainly on occasional warning messages that were sent out in cases of imminent danger. The approach now being pursued has resulted in particularly strict requirements in terms of securing the communication network against unauthorized access. Moreover, fast and stable data communication between road users must be ensured at all times irrespective of the network quality, for instance, even when driving in tunnels. The goal of the research was therefore to determine which benefits the various communication technologies offer for continuous, secure vehicle-to-vehicle data transmission.

The objects used for testing in the CONCORDA project were trucks driven in convoy on stretches of public highways. During their journey, the trucks shared safety-relevant information, such as acceleration and braking data. The testing comprised three types of vehicle-to-vehicle communication: firstly, direct Wi-Fi-based communication (ITS-G5); secondly, cellular-based communication that is direct (LTE-V2X PC5); and thirdly, indirect communication over the mobile network (LTE). With the latter method, the truck’s signals transmitted via the LTE network were first routed to a server in the edge cloud of the mobile network and from there were then forwarded to the test vehicles.

As the trials showed, all the tested systems more than adequately fulfilled the stringent standards with regard to information security. Thanks to their high transmission speed and low latency, the two direct channels of communication are very well suited for use within a radius of up to 500 meters from the vehicle – for example, to immediately prepare the assistance systems for sudden hazards like emergency braking. Within a wider radius of up to 3000 meters, indirect communication via the mobile edge cloud offers benefits. By linking the vehicle’s own data with the data from other road users or the infrastructure, it is possible to implement additional, more advanced functions in the area of automated driving using these methods. Nowadays, most new trucks already come equipped with an LTE unit. By adding the direct, secure channel of communication, parallel use of the two technologies can provide the optimal solution in terms of stable, continuous data transmission.

The results of the innovation project will be incorporated by the project partners into the further development of automated driving functions and communication technologies for trucks and cars that will make road traffic of the future even safer, more efficient and more comfortable.

Mobility is the largest Bosch Group business sector. In 2023, its sales came to 56.2 billion euros, or just under 60 percent of total Group sales. This makes the Bosch Group one of the leading mobility suppliers. Bosch Mobility pursues a vision of mobility that is safe, sustainable, and exciting. For its customers, the outcome is integrated mobility solutions. The business sector’s main areas of activity are electrification, software and services, semiconductors and sensors, vehicle computers, advanced driver assistance systems, systems for vehicle dynamics control, repair-shop concepts, as well as technology and services for the automotive aftermarket. Bosch is synonymous with important automotive innovations, such as electronic engine management, the ESP anti-skid system, and common-rail diesel technology.

The Bosch Group is a leading global supplier of technology and services. It employs roughly 429,000 associates worldwide (as of December 31, 2023). The company generated sales of 91.6 billion euros in 2023. Its operations are divided into four business sectors: Mobility, Industrial Technology, Consumer Goods, and Energy and Building Technology. With its business activities, the company aims to use technology to help shape universal trends such as automation, electrification, digitalization, connectivity, and an orientation to sustainability. In this context, Bosch’s broad diversification across regions and industries strengthens its innovativeness and robustness. Bosch uses its proven expertise in sensor technology, software, and services to offer customers cross-domain solutions from a single source. It also applies its expertise in connectivity and artificial intelligence in order to develop and manufacture user-friendly, sustainable products. With technology that is “Invented for life,” Bosch wants to help improve quality of life and conserve natural resources. The Bosch Group comprises Robert Bosch GmbH and its roughly 470 subsidiary and regional companies in over 60 countries. Including sales and service partners, Bosch’s global manufacturing, engineering, and sales network covers nearly every country in the world. Bosch’s innovative strength is key to the company’s further development. At 136 locations across the globe, Bosch employs some 90,000 associates in research and development, of which nearly 48,000 are software engineers.

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