Electricity: motive power systems – Positional servo systems – With protective or reliability increasing features
Reexamination Certificate
2007-02-06
2007-02-06
Barnes, Crystal J. (Department: 2121)
Electricity: motive power systems
Positional servo systems
With protective or reliability increasing features
C318S568220, C700S013000, C700S061000, C700S069000, C700S079000, C700S178000, C700S255000
Reexamination Certificate
active
10523530
ABSTRACT:
A method and a device are provided for detecting the occurrence of a malfunction upon movement of an element by a driving system. While the element is being moved, a difference between a predetermined value and an actual value is determined at regular intervals by means of a processor. A derivative of the difference is determined by the processor at regular intervals. The difference and the derivative both fluctuate around an equilibrium value. Subsequently, only the values on one side of the equilibrium value of both the difference and the derivative are sampled. The sampled values are multiplied and the result is compared with a reference value by means of the processor. The occurrence of a malfunction is established if the result of the multiplication is higher than the reference value.
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Assembleon N.V.
Barnes Crystal J.
Foley & Lardner LLP
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