Abstract
A design of flap/slat control lever signal calculation based on a potentiometer for civil aircraft is proposed. The design applies to the dual redundancy FSECU (Flaps Slat Electronic Control Unit) architecture. A range monitoring algorithm is first proposed to confirm the validity of the FSCL (Flap/Slat Control Lever). The value of a single potentiometer is used for one-channel FSCL detent calculation. To solve the difference in FSCL signals among channels, an algorithm for FSCL signal monitoring and voting is proposed. The core of this algorithm is presented by logical description and the flow diagram. The design is verified by modeling and simulation in the Simulink environment. The results are in line with expectations, which can provide a reference for the design of the FSCL signal algorithm.
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