Controller and control method for internal combustion engine
US10156212B2 · kind B2 · utility
2Cited by
4References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 27, 2016 |
| Grant date | Dec 18, 2018 |
| Priority date | — |
| Expiry date | Dec 17, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
There is provided an internal combustion engine controller and a control method thereof that can accurately estimate an EGR rate even when the humidity of intake air (the atmospheric air) changes. In the internal combustion engine controller and the control method thereof, an EGR rate is calculated based on an inner-manifold water vapor partial pressure ratio calculated based on a manifold pressure, a manifold temperature, and a manifold humidity and an inner-intake-air water vapor partial pressure ratio calculated based on an intake-air pressure, an intake-air temperature, and an intake-air humidity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.