Secure and Safe Automated Vehicle Platooning
Cooperative adaptive cruise control (CACC) or platooning recently becomes promising as vehicles can learn of nearby vehicles' intentions and dynamics through wireless vehicle to vehicle (V2V) communication and advanced on board sensing technologies. The complexity of automated vehicle platoon system opens doors to various malicious cyber attacks. Violation of cybersecurity often results in serious safety issues as been demonstrated in recent studies. However, safety and security in a vehicle platoon so far have been considered separately by different sets of experts. Consequently no existing solution solves both safety and security in a coherent way. In this article, we show cyber attacks on an automated platoon system could have the most severe level of safety impact with large scale car crash and argue the importance of safety security co design for safety critical cyber physical systems (CPS) Based on a deep comprehension on the interrelation of safety and security, we present a safety security co design engineering process to derive functional security requirements for a safe automated vehicle platoon system. Finally we offer a vision of the future research issues on this important area of automated and connected vehicles.