Method for processing a sensor signal of a knocking sensor for an internal combustion engine
US6862517B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 14, 2003 |
| Grant date | Mar 1, 2005 |
| Priority date | — |
| Expiry date | Jan 14, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01L23/225
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Method for processing a sensor signal of a knocking sensor for an internal combustion engine, having the following steps: a time window is defined for the evaluation of the sensor signal as a function of the operating state and/or the operating behavior of the internal combustion engine, a plurality of sampled values of the sensor signal are sampled within the predefined time window with a predefined sampling frequency, and an output signal which represents the knocking behavior of the internal combustion engine is determined from the sampled values, the Fourier transform of the sampled values being calculated in order to determine the output signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.