Control apparatus for internal combustion engine
US12163495B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 1, 2023 |
| Grant date | Dec 10, 2024 |
| Priority date | — |
| Expiry date | Jun 1, 2043 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A control apparatus, for an internal combustion engine, detects a rotational speed parameter (time parameter) that represents a rotational speed of the internal combustion engine including a plurality of cylinders, detects a single misfire that is a misfire for every ignition for each of the plurality of cylinders, based on the rotational speed parameter that has been detected in each combustion stroke of the plurality of cylinders (steps 2 to 7 and 9), counts, as a misfire counter value, the number of times that the single misfire has been detected for each of the plurality of cylinders (steps 8 and 10), determines whether the misfire is occurring in the cylinder, based on the misfire counter value (steps 11 to 12), and corrects an ignition timing of the cylinder that has been determined that the misfire is occurring to an advance angle side (steps 25, 26, and 34).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.