Spark voltage limiting system for active fuel management
US8495984B2 · kind B2 · utility
3Cited by
1References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 26, 2009 |
| Grant date | Jul 30, 2013 |
| Priority date | — |
| Expiry date | May 30, 2032 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D2200/503
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An engine control system for a vehicle includes a variable displacement module that deactivates N of M cylinders of an engine during a fuel management mode. N is an integer and M is an integer greater than 1. A spark control module generates a spark timing signal for the N cylinders based on a pre-dwell time and a fuel management dwell modifier during the fuel management mode. The spark control module reduces dwell time of the N cylinders during the fuel management mode based on the fuel management dwell modifier.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.