Crank drive condition monitoring for an internal combustion engine
US11118522B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 29, 2019 |
| Grant date | Sep 14, 2021 |
| Priority date | — |
| Expiry date | Nov 27, 2039 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D2200/1015
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for detecting a change in the operating behaviour of a crank drive of a motor vehicle such as cracks in the crank drive or for detecting bearing wear. The crank drive includes a crankshaft, a pulse generator generating a signal S dependent on the rotational speed of the pulse generator and the distance of the pulse generator away from the sensor device. The method includes steps of detection of a current signal Scur of the sensor device during the operation and comparing the current signal Scur with a reference signal Sref stored in a memory and detecting a change in the operating behaviour of the crank drive such as cracks in the crank drive or bearing wear, from the comparison of the current signal Scur with the reference signal Sref.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.