Model-based control of airpath pressure limits by modulating a turbo charger by-pass valve and a variable-geometry turbine
US8209979B2 · kind B2 · utility
11Cited by
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17Claims
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Key dates
| Filing date | Mar 24, 2009 |
| Grant date | Jul 3, 2012 |
| Priority date | — |
| Expiry date | Dec 31, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Simultaneous or independent control of a by-pass valve and a variable-geometry forced induction component on a combustion engine is based on operational parameters measured by various sensors provided as inputs to a control module. Sudden loss of power due to low turbine efficiencies is prevented during transitions between operating conditions of engine speed and load. Excessive peak cylinder pressures are also prevented by controlling engine boost pressure to a permitted limit at high engine speed and load.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.