Data processing: vehicles – navigation – and relative location – Vehicle control – guidance – operation – or indication – Vehicle diagnosis or maintenance indication
Patent
1999-11-18
2000-08-08
Cuchlinski, Jr., William A.
Data processing: vehicles, navigation, and relative location
Vehicle control, guidance, operation, or indication
Vehicle diagnosis or maintenance indication
701111, 364578, 73 3509, 73 62, 73 69, 700280, G01M 1700
Patent
active
06101432&
ABSTRACT:
Vehicle model rattle detection method and system process vibration displacement data of elements of a vehicle CAE model to predict rattle of the vehicle. The rattle detection method and system includes dividing a vehicle model into a plurality of elements and grids. The displacement data for each element as a function of vibration is then provided. The element-grid pairs which contact due to vibration are then determined using the displacement data. Contact velocity for each contacting element-grid pair due to vibration is then estimated. Rattle for each contacting element pair as a function of contact velocity is then determined. The displacement data includes magnitude data and phase data for each element as a function of vibration over time. A rattle index for each contacting element pair is generated, the rattle index is indicative of rattle severity.
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Her Jenyuan Yuan
Lee Ming-Ran
Tsou Poyu
Cuchlinski Jr. William A.
Ford Global Technologies Inc.
Kelley David B.
Marc-Coleman Marthe Y.
May Roger L.
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