Fault tolerant synchronization of chaotic heavy symmetric gyroscope systems versus external disturbances via Lyapunov rule-based fuzzy control

► Fault tolerant synchronization of chaotic gyroscope systems. ► Fault tolerant synchronization versus external disturbances. ► Design of the slave observer and the Lyapunov rule-based fuzzy control. ► Capability of extension to a variety of chaotic systems. ► Usefulness for practical applications in the future.