Cross check strategy for systematic error protection
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United States of America Patent
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Aug 25, 2015
Grant Date -
Sep 11, 2014
app pub date -
Mar 11, 2014
filing date -
Mar 11, 2013
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Abstract
A method for generating and verifying an output command for using in a power steering system is provided. The method receives, by a module having at least a primary processing path and a secondary processing path that is in parallel with the primary processing path, a set of input signals. In the primary processing path, the method generates a primary output command based on the set of input signals and sends the primary output command out of the module. In the secondary processing path, the method generates a first range of command values based on the set of input signals, determines whether the primary output command falls within the range of command values, and generates a fault signal based on determining that the primary output command does not fall within the first range of command values.
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