Avionics System Architecture Design of a Manned eVTOL Aircraft

The avionics system plays a critical role in ensuring the operation of an aircraft, facilitating communication between the aircraft and ground, detecting and displaying aircraft status, as well as coordinating data exchange and processing among various systems. This paper presents an architecture of the avionics system for a manned electric vertical takeoff and landing (eVTOL) aircraft, which mainly includes the flight control system, navigation sensor system, communication system, intelligent onboard computer system, and cloud monitoring system. Detailed descriptions are provided for the redundant flight control system, sensor redundancy design, and intelligent onboard computer system. Various flight tests, including manned flight, cargo transportation, endurance, range, speed, and fault tolerance tests, are conducted on the aircraft equipped with this avionics system. The flight tests have exceeded a thousand. Analysis of flight log data demonstrates that the designed avionics system meets the safety and functionality requirements of the manned eVTOL aircraft.