Method for controlling an engine with VGT and EGR systems

Details Method for controlling an engine with VGT and EGR systems Method for controlling an engine with VGT and EGR systems

2006-07-18

2006-07-18

Nguyen, Hoang (Department: 3748)

Power plants

Fluid motor means driven by waste heat or by exhaust energy...

With supercharging means for engine

C123S568110, C123S568210

Reexamination Certificate

active

07076953

ABSTRACT:
A method for controlling an internal combustion engine is provided. The engine includes a variable geometry turbocharger (VGT) system and an exhaust gas recirculation (EGR) system. In a boost mode, the VGT system is controlled with a closed loop based on boost pressure. In an EGR mode, the VGT system is controlled with a closed loop based on EGR rate. Further, in the EGR mode, the EGR system is controlled with a closed loop based on boost pressure. Preferred control techniques are also provided including non-linear compensation and adaptive feed forward control.

REFERENCES:
patent: 6178749 (2001-01-01), Kolmanovsky et al.
patent: 6305167 (2001-10-01), Weismann, II et al.
patent: 6347519 (2002-02-01), Kreso
patent: 6422219 (2002-07-01), Savonen et al.
patent: 6457461 (2002-10-01), Romzek
patent: 6460522 (2002-10-01), Rimnac

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