Real-time spectral analysis of internal combustion engine knock
US7181339B2 · kind B2 · utility
8Cited by
3References
24Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 27, 2006 |
| Grant date | Feb 20, 2007 |
| Priority date | — |
| Expiry date | Feb 27, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01L23/225
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A system for, and a method of, obtaining, for analysis, from a subject internal combustion engine, real-time engine knock data involving assessing, as a positive indication of engine knock behavior, whether the energy-content value represented in at least one selected, knock-relevant frequency-domain spectral bin which is present in a frequency-domain energy-content spectrum derived from acquired engine operating data of a type expected to contain evidence of engine knock behavior exceeds that of a pre-selected energy threshold value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.