Fault-tolerant control scheme for rotor speed sensor of a turbo-shaft engine and full authority digital engine control(FADEC) was studied.And
the fault-tolerant rule of a turbo-shaft engine was determined.A "fault simulator" was used to carry out fault-tolerant test under a test rig.The results show that
fault accommodation and verification method are easy to implement
and fault-tolerant control can maintain efficiently the power output of engines.The test run provides useful experience for matching of multiple engine installation
and also lays a basis for other types of aero-engines.