Engine control apparatus
US9863338B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 5, 2016 |
| Grant date | Jan 9, 2018 |
| Priority date | — |
| Expiry date | Feb 26, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
When a difference between a target intake air amount during the reduced-cylinder operation, which is greater than a target intake air amount during the all-cylinder operation in a normal state, and an actual intake air amount is greater than an allowable deficient intake air amount, a preparatory control for increasing the actual intake air amount and shifting an ignition timing toward a retard side with respect to an ignition timing during the all-cylinder operation in the normal state. Then, at a time when the difference between the target intake air amount and the actual intake air amount becomes equal to or less than the allowable deficient intake air amount, the reduced-cylinder operation is started, wherein the allowable deficient intake air amount is set to a larger value when a current speed stage is a high speed stage than when it is a low speed stage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.