Vehicle rattle detection method and system
US6101432A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 18, 1999 |
| Grant date | Aug 8, 2000 |
| Priority date | — |
| Expiry date | Nov 18, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01M17/007
- WIPO fieldMeasurement
- WIPO sectorInstruments
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.