Dual controller system
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United States of America Patent
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Dec 15, 2020
Grant Date -
Jan 11, 2018
app pub date -
Dec 30, 2015
filing date -
Dec 31, 2014
priority date (Note) -
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Abstract
The present invention relates to a dual controller system for analyzing a control signal received from two dual controllers, both of which operate in an active state, to check whether an error occurs in the controllers and to perform operation with a controller in a normal state. A dual controller system according to the present invention includes a plurality of lower-layer modules performing respective functions, and first and second controllers for controlling each of the plurality of lower-layer modules, wherein the first and second controllers transmit control signals to the plurality of lower-layer modules, and the lower-layer modules determine whether an error occurs in the two received control signals, remove an erroneous control signal and perform a function according to a normal control signal.
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