Turbine adapted maps for turbocharger engine matching

Abstract This paper presents a new representation of the turbine performance maps oriented for turbocharger characterization. The aim of this plot is to provide a more compact and suited form to implement in engine simulation models and to interpolate data from turbocharger test bench. The new map is based on the use of conservative parameters as turbocharger power and turbine mass flow to describe the turbine performance in all VGT positions. The curves obtained are accurately fitted with quadratic polynomials and simple interpolation techniques give reliable results. Two turbochargers characterized in an steady flow rig were used for illustrating the representation. After being implemented in a turbocharger submodel, the results obtained with the model have been compared with success against turbine performance evaluated in engine tests cells. A practical application in turbocharger matching is also provided to show how this new map can be directly employed in engine design.

[1]  N. Watson,et al.  Turbocharging the internal combustion engine , 1982 .

[2]  Ilya Kolmanovsky,et al.  Turbocharger Modeling for Automotive Control Applications , 1999 .

[3]  Francisco José Arnau,et al.  A model of turbocharger radial turbines appropriate to be used in zero- and one-dimensional gas dynamics codes for internal combustion engines modelling , 2008 .

[4]  I Hakeem,et al.  Modelling of a Turbocharger Turbine Under Pulsating Inlet Conditions , 1996 .

[5]  S. L. Dixon,et al.  Fluid mechanics, thermodynamics of turbomachinery , 1966 .

[6]  Carlos Guardiola,et al.  Assessment of a sequentially turbocharged diesel engine on real-life driving cycles , 2009 .

[7]  John B. Heywood,et al.  Internal combustion engine fundamentals , 1988 .

[8]  D. E. Winterbone,et al.  The thermodynamics and gas dynamics of internal-combustion engines. Volume II , 1982 .

[9]  Joerg R. Seume,et al.  Analysis of Turbocharger Non-Adiabatic Performance , 2006 .

[10]  Zoran Filipi,et al.  The Use of Neural Nets for Matching Fixed or Variable Geometry Compressors With Diesel Engines , 2003 .

[11]  José Galindo,et al.  Strategies for improving the mode transition in a sequential parallel turbocharged automotive diesel engine , 2009 .

[12]  Jesús Benajes,et al.  Modelling of supercharger turbines in internal-combustion engines , 1996 .

[13]  E. Hendricks,et al.  Mean Value Modelling of Turbocharged Spark Ignition Engines , 1998 .

[14]  Keiji Konishi,et al.  IGTC-65 Performances of Radial Inflow-Turbines for Exhaust Gas Turbochargers Under Nonsteady Flow Conditions(Session C-8 TURBOCHARGERS II) , 1991 .

[15]  J. Macek,et al.  Simulation of Pulsating Flow Unsteady Operation of a Turbocharger Radial Turbine , 2008 .

[16]  Elbert Hendricks,et al.  Mean Value Modeling of a Small Turbocharged Diesel Engine , 1991 .