Internal combustion engine abnormal combustion detection device
US10451024B2 · kind B2 · utility
0Cited by
8References
5Claims
0Family size
Assignee
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Key dates
| Filing date | Jul 18, 2017 |
| Grant date | Oct 22, 2019 |
| Priority date | — |
| Expiry date | Apr 20, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Knocking and pre-ignition are identified, without contributing to pre-ignition, even when vibration magnitudes and timings of occurrence of the knocking and pre-ignition are the same. When detecting an abnormal combustion that cannot be identified as a knocking or pre-ignition, ignition timing is advanced, at which time knocking is identified when an abnormal combustion intensity increases, and pre-ignition is identified when a difference between ignition timing and abnormal combustion occurrence timing increases.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.