Dual channel signal selection and fault detection system
作者： Richard Walter Hess , Richard Hong Chin , Asamitsu Maeshiro
DOI:
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摘要: A signal selection and fault detection system that provides triple functional redundancy using the outputs (YA, YB) of two unmonitored primary channels output one or other complementary filters (22, 34) each receive process a (Y dot IRU) is derived from third, independent source (18) representative rate first derivative signals YB). During non-failure conditions, (YCF1) generated by normal mode filter 22 synthesized selected (10) midvalue this In event suspected failure in signals, (YIRU) substituted (16) for as third input (C) to selector (10). The includes monitor (24) detector (26) generate switching (LOC FAIL, IC FILT, SELCHA, SELCHB) control between isolation failed channels. Provisions (30, 32) are made initializing integrators (52, 54) varying band width (C1, C2, A1, A2) both function parameter influences signals.
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