Internal combustion engine control device
US8762033B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 1, 2008 |
| Grant date | Jun 24, 2014 |
| Priority date | — |
| Expiry date | Mar 28, 2031 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D2250/21
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
When fuel cut permission conditions are satisfied, a guard provided by an ignition timing retardation limit is relieved. In the resulting state, the ignition timing is retarded to decrease the output torque of an internal combustion engine. After the output torque of the internal combustion engine is decreased to a predetermined minimum torque, the supply of fuel is shut off. When, on the other hand, recovery from a fuel cut is to be achieved, the guard provided by the ignition timing retardation limit is relieved until completion conditions for recovery from the fuel cut are satisfied. In the resulting state, the ignition timing is retarded to decrease the output torque of the internal combustion engine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.