The invention belongs to the technical field of undercarriage control and particularly relates to an airplane dual-redundancy digital type undercarriage retraction/extension controller. The system comprises two working channels which are redundancies of each other; each working channel comprises a proximity sensor signal acquisition circuit, a handle signal acquisition circuit, a DSP minimum system and an output driving circuit; the two DSP minimum systems are connected by a crossed channel data chain; a switching circuit is connected with the two DSP minimum systems and the two output driving circuits respectively; and the output driving circuits are connected with one of the two DSP minimum systems and the switching circuit. The airplane dual-redundancy digital type undercarriage retraction/extension controller adopts electric dual-redundancy control and selects a DSP chip as a processor chip, so that an undercarriage retraction/extension system is simplified and has higher reliability; and the control rate is convenient to realize and adjust. The undercarriage retraction/extension controller adopts the dual-redundancy configuration so that the fault-tolerant capability of primary malfunction work and secondary malfunction safety can be realized.
Airplane dual-redundancy digital type undercarriage retraction/extension controller
2015-05-27
Patent
Electronic Resource
English
IPC: | B64C AEROPLANES , Flugzeuge |
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