Method of controlling a turbocharged engine
US9677486B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 13, 2015 |
| Grant date | Jun 13, 2017 |
| Priority date | — |
| Expiry date | Oct 13, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A method of controlling a motor vehicle having a turbocharged engine is disclosed in which deactivation of cylinders of the engine is controlled to prevent the rotational speed of a turbocharger of the engine falling below a predefined limit TA, TB. Following commencement of a coast down of the motor vehicle all cylinders of the engine are first deactivated so as to maximise energy recuperation from the motor vehicle by a belt integrated starter generator driveably connected to the engine. However, if the speed of the turbocharger reaches one of the speed limits TA, TB at least one cylinder of the engine is reactivated to keep the turbocharger spinning.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.