Virtual compressor outlet temperature sensing for charge air cooler overheating protection
US7143580B2 · kind B2 · utility
23Cited by
5References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 22, 2004 |
| Grant date | Dec 5, 2006 |
| Priority date | — |
| Expiry date | Feb 21, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A system and method for controlling an internal combustion engine, having an exhaust recirculation (EGR) system and a charge air cooler, to prevent overheating the charge air cooler. The system calculates the output temperature of a turbocharger compressor as a function of ambient air temperature, air pressure, air mass flow rate, and turbo speed by processing an equation and controls the engine to modify charge air flow to reduce the output temperature of the turbocharger compressor if that temperature exceeds that of a determined crucial temperature above which charge air cooler damage could occur.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.