Control systems and methods for newly assembled engines
US8146569B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 17, 2009 |
| Grant date | Apr 3, 2012 |
| Priority date | — |
| Expiry date | Oct 11, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An engine control system for a vehicle comprises a combustion control module and an engine startup module. The combustion control module selectively controls a spark timing and airflow into an engine based on a counter value. The engine startup module, when the counter value is one of greater than and less than a predetermined final value, controls an equivalence ratio (EQR) of an air/fuel mixture provided to the engine during an engine cranking period based on a fuel rail pressure and controls the EQR during an engine running period based on the fuel rail pressure and an engine runtime period. The counter value is set to the predetermined final value after the engine is started for a first time after the engine is assembled.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.