Real time recall feature for an engine data processor system

Details Real time recall feature for an engine data processor system Real time recall feature for an engine data processor system

G - Physics

01

M

354/18

G01M 15/00 (2006.01) G06F 15/20 (1985.01)

Patent

CA 1223961

ABSTRACT OF THE DISCLOSURE A real-time recall feature for an engine data processor (20). An engine mounted data processor (20) inputs a plurality of engine operating parameters from a gas turbine engine (10). These parameters are fault checked and reformatted by the processor (20) before being output on a serial transmission channel (XCH) to an airframe mounted permanent recording apparatus (30). A set of the most recent engine profiles are stored in a dynamic random access memory (DRAM) which is constantly updated by overlaying the oldest data with the most recent. A switch (52) generates a signal (FRZ) to terminate storage of the profiles and freeze the contents of the (DRAM). The memory remains frozen having captured the most recent engine profiles associated with the generation time of the signal (FRZ) until unloaded over the channel (XCH) to recorder (30). The output of the (DRAM) is in response to a signal (RPL) generated by switch (52). (Figure 1)

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