Deterministic Intra-Vehicle Communications: Timing and Synchronization
As we power through to the future, in-vehicle communications reliance on speed is becoming a challenging predicament. This is mainly due to the ever-increasing number of electronic control units (ECUs), which will continue to drain network capacity, hence further increasing bandwidth demand. For a wired network, a tradeoff between bandwidth requirement, reliability, and cost- effectiveness has been our main motivation in developing a high-speed network architecture that is based on the integration of two time-triggered protocols namely; Time Triggered Ethernet (TT- E) and Time Triggered Controller Area Network (TT-CAN). Therefore, as a visible example of an Internet of Vehicles technology, we present a time triggered communication-based network architecture. The new architecture can provide scalable integration of advanced functionalities, while maintaining safety and high reliability. To comply with the bandwidth requirement, we consider high-speed TT-Ethernet as the main bus (i.e., backbone network) where sub-networks can use more cost-effective and lower bandwidth TT-CAN to communicate with other entities in the network via a gateway. The main challenge in the proposed network architecture has been to resolve interoperability between two entirely different time-triggered protocols, especially in terms of timing and synchronization. With that in mind, we explore the main key drivers of the proposed architecture, which are bandwidth, reliability, and timeliness.
June 7-11, 2020
IEEE International Conference on Communications (IEEE ICC)
Deterministic Intra-Vehicle Communications: Timing and Synchronization, IEEE International Conference on Communications (IEEE ICC), Dublin, -1, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=929702
(Accessed September 22, 2021)