Knock control apparatus for internal combustion engine
US8909459B2 · kind B2 · utility
0Cited by
2References
4Claims
0Family size
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Key dates
| Filing date | Sep 12, 2012 |
| Grant date | Dec 9, 2014 |
| Priority date | — |
| Expiry date | Jul 13, 2033 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D2041/286
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A knock control apparatus for an internal combustion engine includes a knock signal normalization portion that normalizes a knock signal using base statistics calculated on the basis of the knock signal. The knock signal normalization portion calculates base statistics on the basis of a last value and a current value of the knock signal and normalizes the knock signal using a base statistic interpolated according to an operating state.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.