System and method for controlling transient switching between HCCI mode and SI mode of an engine
US8322324B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 9, 2009 |
| Grant date | Dec 4, 2012 |
| Priority date | — |
| Expiry date | Jan 1, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A control system and method for operating an engine includes an HCCI mode control module operating an engine in a homogeneous charge compression (HCCI) mode. The control system also includes a difference module determining an actual difference between a desired torque amount and a spark ignition (SI) threshold. An SI mode control module operates the engine in a SI state when the actual difference is above a threshold band. A HCCI mode control module operates the engine in the HCCI mode for a predetermined time when the actual difference is within the torque threshold band. The HCCI mode control module operates the engine in the HCCI mode when the actual difference is below the torque threshold band.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.