Engine airflow control
US6516778B1 · kind B1 · utility
17Cited by
35References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 26, 2000 |
| Grant date | Feb 11, 2003 |
| Priority date | — |
| Expiry date | Apr 12, 2021 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D2400/12
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A method for controlling a powertrain of a vehicle adjusts a minimum allowed airflow based on operating conditions. Specifically, when conditions of engine speed and/or vehicle speed area away from idle conditions, no increasing of the minimum allowed airflow is carried out. However, when conditions of engine speed and/or vehicle speed area approaching idle conditions, the minimum allowed airflow is increased to the required airflow for those idle conditions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.