scholarly journals Separation of Estimation and Control for Discrete-Time Linear Decentralized Control Systems

1974 ◽  
Vol 10 (3) ◽  
pp. 263-271
Author(s):  
Tsuneo YOSHIKAWA ◽  
Yuji YOSHIDA
Keyword(s):  
Control Systems ◽  
Decentralized Control ◽  
Discrete Time ◽  
Estimation And Control ◽  
And Control ◽  
Time Linear

Turbocharger Map Reduction for Control-Oriented Modeling

2011 ◽  
Author(s):  
Karla Stricker ◽  
Lyle Kocher ◽  
Ed Koeberlein ◽  
D. G. Van Alstine ◽  
Greg Shaver
Keyword(s):  
Control Systems ◽  
Exchange Process ◽  
Variable Geometry ◽  
Shaft Speed ◽  
Analytical Functions ◽  
Nozzle Position ◽  
Mass Flows ◽  
Estimation And Control ◽  
Gas Exchange Process ◽  
And Control

The gas exchange process in a modern diesel engine is generally modeled using manufacturer-provided performance maps that describe mass flows through, and efficiencies of, the turbine and compressor. These maps are typically implemented as look-up tables requiring multiple interpolations based on pressure ratios across the turbine and compressor, as well as the turbocharger shaft speed. In the case of variable-geometry turbochargers, the nozzle position is also an input to these maps. This method of interpolating or extrapolating data is undesirable when modeling for estimation and control, and though there have been several previous efforts to reduce dependence on turbomachinery maps, many of these approaches are complex and not easily implemented in engine control systems. As such, the aim of this paper is to reduce turbocharger maps to analytical functions for models amenable to estimation and control.

Stability Analysis of Finite-Level Quantized Discrete-Time Linear Control Systems

2010 ◽  
Vol 16 (3) ◽  
pp. 258-271 ◽  
Author(s):  
Carlos E. de Souza ◽  
Daniel F. Coutinho ◽  
Minyue Fu
Keyword(s):  
Stability Analysis ◽  
Control Systems ◽  
Discrete Time ◽  
Linear Control ◽  
Linear Control Systems ◽  
Time Linear
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