Power plants – Fluid motor means driven by waste heat or by exhaust energy... – With supercharging means for engine
Patent
1999-01-26
2000-10-10
Koczo, Michael
Power plants
Fluid motor means driven by waste heat or by exhaust energy...
With supercharging means for engine
60602, F02B 3724, F02M 2507
Patent
active
061289027
ABSTRACT:
A method and apparatus of controlling the airflow into a compression ignition engine having an exhaust gas recirculation (EGR) system and a variable geometry turbocharger (VGT). The control strategy includes the steps of measuring the intake manifold pressure and exhaust manifold pressure, and using these values, estimating the EGR flow fraction. The EGR flow fraction is then used in a proportional plus integral feedback control loop to generate position commands for the EGR valve. Similarly, the intake manifold pressure signal is used in a proportional plus integral feedback control loop to generate position commands for the VGT. In this way, the EGR valve is used to regulate the EGR flow fraction to a desired value and the VGT turbine is used to regulate the intake manifold pressure to a desired value.
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Kolmanovsky Iiya V.
Moraal Paul Eduard
Van Nieuwstadt Michiel J.
Drouillard Jerome R.
Ford Global Technologies Inc.
Koczo Michael
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