Impact Case Study: Guaranteeing the real-time performance of in-vehicle networks

Controller Area Network (CAN) is a digital communications bus used by the automotive industry for invehicle networks. Research from the Real-Time Systems Group at the University of York introduced techniques that enable CAN to operate under high loads (approx. 80% utilisation) while ensuring that all messages meet their deadlines. The research led directly to the development of commercial products, now called Volcano Network Architect (VNA) and the Volcano Target Package (VTP). This Volcano technology (VNA and VTP) is now owned by Mentor Graphics. In recent years, VNA has been used to configure CAN communications for all Volvo production cars, with VTP used in the majority of Electronic Control Units (ECUs) in these vehicles, including the S40, S60, S80, V50, V70, XC60, XC70, XC90, C30, and C70; total production volume 330,000 to 450,000 vehicles per year. This Volcano technology is also used by Jaguar, LandRover, Aston Martin, Mazda, and the Chinese automotive company SAIC. It is used by the world’s leading automotive suppliers, including Bosch and Visteon. It is also used by Airbus.