Transmission gear life monitor system
US6526816B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 13, 2000 |
| Grant date | Mar 4, 2003 |
| Priority date | — |
| Expiry date | Dec 13, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01M13/021
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An integral gear life monitor system and method for determining gear use and damage is disclosed. The system includes a first and second sensors for measuring the rotational speed and torque of a driveline component, such as an input shaft of a vehicle transmission, for a particular gear ratio at one or more time intervals over a period of time. Each time interval may be in the range of 40 ms to 100 ms. The period of time may be hours, days, month, or even years. A processor performs a statistical summation technique to transform the signals from the first and second sensors into an equivalent amount time for the particular gear ratio during that period of time. A driveline vibration analyzer can perform an online determination of the torsional vibrations for the particular gear ratio to determine whether vibration is a root cause of why a gear ratio is worn or damaged. The transformed signals can be stored in a non-volatile memory of the processor for later retrieval as a diagnostic tool to statistically measure the amount of life used by each gear ratio, to determine if a gear ratio is worn or damaged, to determine the root cause of why a gear ratio is worn or damaged, and to tak…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.