Power plants – Fluid motor means driven by waste heat or by exhaust energy... – With supercharging means for engine
Reexamination Certificate
2007-02-13
2007-02-13
Trieu, Thai-Ba (Department: 3748)
Power plants
Fluid motor means driven by waste heat or by exhaust energy...
With supercharging means for engine
C123S568210, C123S568220, C701S108000, C701S103000, C073S118040, C073S118040
Reexamination Certificate
active
10850531
ABSTRACT:
An engine management system uses physically based models to determine the composition and mass of the fresh air/exhaust gas mixture suctioned by an internal combustion engine. The models are closely coupled to each other in a partial manner and are used to simulate the filling of the combustion chamber with the suctioned fresh air/waste gas mixture in order to simulate the flow of the mass of re-circulating exhaust gas, the behavior of the exhaust gas manifold upstream and downstream from a turbine, the storage behavior of the intake manifold, and the behavior of the intake pipe or inlet manifold whereby the fresh air/exhaust gas mixture is fed to the combustion engine from a corresponding mixing point where the suctioned fresh air is mixed with the exhaust gas re-circulated via the exhaust gas re-circulation line. As a result, a plurality of additional state variables can be determined without additional sensors.
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Jeschke Jens
Nitzke Hans-Georg
Rebohl Thorsten
Baker & Botts L.L.P.
Trieu Thai-Ba
Volkswagen Aktiengesellschaft
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