A novel CPS-based vehicle safety state evaluation scheme Available to Purchase

In order to obtain consecutive vehicle safety states (CVSSs) for a vehicle safety warning system (VSWS), a novel CVSS calculation scheme, tightly coupling the vehicle's cyber system and its physical dynamics (the cyber–physical system (CPS)), has been developed. The proposed scheme objectively divides the dynamic vehicle distance changes into a cyber process and a physical process, defines the notions of minimum safety distance and safety constants and then improves the dynamic vehicle safety distance calculation scheme using the vehicle velocity, acceleration, the velocity difference and other parameters in the consecutive vehicle distance for scenarios of staying in the same lane and changing to a different lane. The simulation results show that the proposed scheme is practical and effective, and can offer advice for VSWS designs.