Vehicle driveline balancing
US5431049A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 27, 1994 |
| Grant date | Jul 11, 1995 |
| Priority date | — |
| Expiry date | Jun 27, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01M13/028
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method and system for balancing an automotive vehicle driveline (10) after it has been installed into a vehicle (8). An impact hammer and a system analyzer (36) are used to determine a frequency response function at each end of a driveshaft (16). From this, a critical frequency of rotation is determined for the driveshaft (16) for that particular model of vehicle (8) and driveline (10). Each vehicle (8) that comes off of an assembly line can now have a balance test performed on it using accelerometers (44 and 46) and a phase angle measurement. Combining the measurement with the frequency response function, the imbalance of the driveline is determined and compared to a predetermined limit to determine if correction masses need to be added. If so, a determination of the amount of mass needed and the orientation is made.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.