Sliding mode control system
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United States of America Patent
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Feb 8, 1994
Grant Date -
N/A
app pub date -
Dec 3, 1991
filing date -
Dec 8, 1990
priority date (Note) -
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Abstract
Control method and apparatus for a moveable control member with n>3 observed states. The apparatus incorporates a sliding mode control system operable to maintain the state point of the moveable member on a predetermined non-linear hyperplane having n-1 dimensions. The hyperplane is such that, if the state point is maintained thereon, the maximum rate of change of the highest order observed state does not exceed that of which the control apparatus is capable. The sliding mode control system include sa digital processor operable to reference n-1 low order observed states to the predetermined hyperplane to establish a desired value of the highest order observed state. The control system compares such desired value with the observed highest order state, and implements the control action necessary to maintain the state point on the predetermined hyperplane.
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