Audi advanced technology increases road safety

Audi is taking another step towards safer and smarter mobility. The German brand is using for the first time a “swarm of data”, a huge amount of high-precision data to improve the car-to-X service for “local hazard alerts”. Based on a car-to-cloud application to estimate the coefficient of friction with the road or the wheel slip, the new technology detects the slightest changes in road traction, immediately uploads the data to the cloud for processing and warns the following drivers and are going to be on the icy road, for example, in almost real time.

Since 2017, Audi cars have been able to warn each other of dangerous situations such as accidents, damaged vehicles, traffic jams, ice or limited visibility. To do this, the car-to-X service’s “local hazard alert” service analyzes various data. These include electronic stabilization control (ESC) interventions, rain and light sensors, wiper and headlight operation, as well as emergency calls and airbag activation.

Audi is now taking the next step and improving high-precision data service to make the warning more accurate and even faster. It works with Car.Software, a company of the Volkswagen Group, and HERE Technologies, a company that develops advanced navigation and mapping applications and is co-owned by Audi, and the Swedish company NIRA Dynamics AB, using a patented implementation of the latter as a basis. for the development of improved risk alerts.

The in-car software application, developed by Car.Software, estimates the coefficient of friction between the tires and the road surface based on the wheel slip. Suspension signals are used, such as wheel speed and acceleration values. The system is permanently active in all driving conditions and not only at the physical limits that would require the intervention of traction control systems. The data remains anonymous, both in the car itself and in the cloud, to which it is transmitted. They are combined with other data, such as current weather information and empirical values, and then, through processing by the other partners of the program, depending on the severity of the situation, end up as warnings in the virtual cockpit or in the Audi head-up screen.

The larger the number of vehicles that provide the data, the more efficient the system, which can be constantly self-improving. This is the basic premise of the data swarm – an area in which Audi has gained extensive knowledge in recent years. In Europe, in 2021 more than 1.7 million Volkswagen Group vehicles will provide current data for the application, with the number increasing to more than three million in 2022, making Audi a leader in this field. This is the first application in which vehicle data is used for this type of advanced data analysis.

Car.Software is a software company of the Volkswagen Group that has a mission to develop the leading technology base for the automotive industry and thus make the driving experience safer, more sustainable and more comfortable. It employs about 5,000 engineers and developers worldwide, with “development centers” in Berlin, Ingolstadt, Munich, Stuttgart, Wolfsburg and Seattle, USA.

Press release

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