Distributed Electronic Control Architecture and Low-Latency Electronic Information Transmission Technology for eVTOL

Abstract

The distributed power unit of the electric vertical take-off and landing (eVTOL) aircraft should have good real-time control performance and transmission determinism, and the traditional centralised avionics system will be prone to bus delay accumulation and single points of failure. Collaborative Design for a Distributed Electronic Control Architecture and Low-Latency Transmission Technology: Weighted graphs are used to determine the position of nodes in the architecture, multi-agent task decoupling and load-balancing schemes are introduced, a triple-redundancy fault reconfiguration mechanism has been established; at the transmission level, a physical-layer scheme with shortened polar codes and CRC-aided decoding has been developed, and it is combined with Time-Sensitive Networking (TSN) scheduling and edge-end collaborative compression; finally, at the integration level, a co-flow conflict resolution model, mode-adaptive bandwidth allocation and clock synchronization jitter suppression strategies have been developed. Based on the above verification results, the total transmission jitter of the proposed scheme will be less than 1% of the control period.