Power plants – Fluid motor means driven by waste heat or by exhaust energy... – With supercharging means for engine
Patent
1991-01-25
1992-06-23
Koczo, Michael
Power plants
Fluid motor means driven by waste heat or by exhaust energy...
With supercharging means for engine
F02B 3712
Patent
active
051232464
ABSTRACT:
A system and method for closed loop control of a pressure-activated variable geometry turbocharger (VGT) for use in internal combustion engines, such as heavy duty diesel engines, provides sensors for detecting both intake manifold boost pressure as well as VGT actuator pressure. Sensors are also provided for detecting various engine operating parameters. Target VGT actuator pressures and target intake boost pressures are read from look-up tables according to the engine operating parameter values. Closed loop control of VGT geometry is effected based upon either VGT actuator pressure error or intake manifold boost pressure error as a function of engine operating mode, e.g., steady state or transient state operation. Turbine overspeed protection and adaptive compensation for transient state control are also performed.
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patent: 4741163 (1988-05-01), Hidaka et al.
patent: 4756161 (1988-07-01), Hirabayashi
patent: 4769994 (1988-09-01), Hirabayashi
patent: 4848086 (1989-07-01), Inoue et al.
Rini Guy T.
Younessi Ramin
Koczo Michael
Mack Trucks, Inc.
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