A control allocation method based on equivalent virtual control surfaces

Most existing allocation methods need the control effectiveness matrix to solve the problem, and their allocation accuracy directly depends on the identification precision of the control effectiveness matrix. If the matrix is poorly identified, the designed allocator may not work well. This paper presents an allocation method based on equivalent virtual control surface whose aerodynamic effect is equivalent to the real effectors. The method divides the design of control allocation system into two parts: the longitudinal and lateral, solve the problem and find the allocation law by choosing reasonable equivalent virtual effectors. Simulation results show that the proposed method can make the responses of roll angle and yaw angle follow the command signals well.