Data processing: vehicles – navigation – and relative location – Vehicle control – guidance – operation – or indication – With indicator or control of power plant
Reexamination Certificate
2006-10-13
2010-02-02
Cronin, Stephen K (Department: 3747)
Data processing: vehicles, navigation, and relative location
Vehicle control, guidance, operation, or indication
With indicator or control of power plant
C123S339150, C123S436000, C701S111000
Reexamination Certificate
active
07657360
ABSTRACT:
Dither frequency analysis systems include a controller for directing a control signal and a dither frequency to an actuation driver. One or more sensors are used for receiving and relaying a signal downstream from an actuation element, which downstream signal includes the dither frequency. A frequency analysis device receives and analyzes the downstream dither frequency and directs the same to a controller that is configured to evaluate the analyzed downstream dither frequency, and evaluate whether the same indicates proper or improper actuation system operation. The downstream dither frequency is analyzed and evaluated at a frequency of less than about one second, and the frequency analysis device analyzes downstream dither frequencies in the range of from about 50 to 500 hertz. The system can include algorithms and test sequences to address and/or further evaluate improper actuation system operation.
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Cronin Stephen K
Hoang Johnny H
Honeywell International , Inc.
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