Distributed platooning control of connected and automated vehicles under Event-based encryption-decryption

The paper investigates the problem of distributed vehicular platooning control under the premise of privacy preservation. First, an encryption-decryption scheme is introduced to secure the data transmitted among vehicles, preventing potential external breaches that might compromise the confidentiality of the original vehicular data, thereby enhancing the privacy and security of vehicle interactions. Second, an event-triggered mechanism is utilized to enable data exchanges among vehicles only when specific conditions are met. The employment of such event triggering significantly reduces the utilization of communication resources, thereby improving communication efficiency. Then, a distributed platooning control strategy is proposed to ensure that each vehicle within the platoon achieves the desired tracking performance. Finally, stability analysis of the closed-loop event-triggered encryption-decryption platooning control system is conducted. The feasibility and the efficacy of the control strategy are demonstrated through a specific numerical example.