Device and method for analysing a performance of an engine
US8713992B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 18, 2011 |
| Grant date | May 6, 2014 |
| Priority date | — |
| Expiry date | Jan 18, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The present invention relates to a device for analyzing a cylinder wise performance of an internal combustion engine, comprising ion current measurement means that are arranged to measure an ion current in a engine and that are also arranged to produce a first signal corresponding to a measurement performed by said ion current measurement means, and also comprising an amplifier that is connected to said ion current measurement means and that is arranged to receive and amplify said first signal in order to produce an amplified signal, and further also comprising first analyzing means for analyzing said amplified signal for detecting an indication of a knock event in the engine, wherein said amplifier is a variable-gain amplifier and that said device further comprises second analysis means that is arranged to receive and analyze said amplified signal and to adjust a gain of said amplifier. The invention also relates to a method for analyzing a performance of a engine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.