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.


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    Title :

    Airplane dual-redundancy digital type undercarriage retraction/extension controller


    Contributors:
    LI ZHIYONG (author) / CHANG KAI (author) / LI SHENGJUN (author) / HU GANGWEI (author)

    Publication date :

    2015-05-27


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B64C AEROPLANES , Flugzeuge



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