Method for detecting a failure of at least one sensor onboard an aircraft implementing a baro-inertial loop, and associated system
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United States of America Patent
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Jul 25, 2017
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app pub date -
Jun 26, 2014
filing date -
Jun 28, 2013
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Abstract
A method for detecting a failure of at least one sensor onboard an aircraft implementing a baro-inertial loop is provided. The method includes implementing a baro-inertial loop including obtaining a computed vertical speed, then a short-term baro-inertial altitude, based on a double integration of the measured vertical acceleration; and developing at least one intermediate loop parameter based on a deviation between the short-term baro-inertial altitude and the pressure altitude. The method also includes observing at least one failure detection parameter obtained from one of the intermediate parameters of the baro-inertial loop; and determining the presence of a failure on one of the sensors of the aircraft based on the value of the observed failure detection parameter.
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