Development of a Lateral-directional Envelop Protection Flight Control System

For the factor of aircraft flying safety, some critical flight parameters must be limited within the envelop borders. However, excellent flight performance requires that the aircraft can flight to some envelop borders easily and fast nearly. The purpose of envelop protection is to solve this dilemma. Based on the basic lateral-directional flight control law, an envelop protection method using control command compensation is developed. Numerical simulation results show that this method can effectively solves the flying safety problem without sacrificing flight performance.