Toward a Comprehensive Model for Combustion in a Direct-Injection Stratified-Charge Engine

1980 ◽  
pp. 231-264 ◽  
Author(s):  
T. D. Butler ◽  
L. D. Cloutman ◽  
J. K. Dukowicz ◽  
J. D. Ramshaw ◽  
R. B. Krieger
Keyword(s):  
Direct Injection ◽  
Comprehensive Model ◽  
Stratified Charge

Feasibility Assessment and Operating Policy Optimization of Automotive Powertrains With Uncertainties Using Game Theory

2001 ◽  
Author(s):  
Ilya Kolmanovsky ◽  
Irina Siverguina
Keyword(s):  
Direct Injection ◽  
Operating Conditions ◽  
Lean Nox Trap ◽  
Drive Cycle ◽  
Stratified Charge ◽  
Feasibility Assessment ◽  
Feasibility Evaluation ◽  
Lean Nox ◽  
Game Theoretic ◽  
Policy Optimization

Abstract The paper describes a game-theoretic framework and a computational algorithm for feasibility evaluation of automotive powertrains with storage elements in terms of fuel economy and emissions performance. The game-theoretic framework allows to handle various time-dependent uncertainties, including uncertainties in the drive cycle. In particular, an important issue in the prior approaches to this problem, the drive cycle dependence of the optimal policies, is alleviated. Within the basic framework, it is also possible to generate implementable operating policies that specify powertrain actuator settings as functions of engine operating conditions and states of the storage elements. We illustrate the procedure using an example powertrain with a Direct Injection Stratified Charge engine and an aftertreatment system consisting of a Three Way Catalyst and a Lean NOx Trap.

Hybrid Model Predictive Control of Direct Injection Stratified Charge Engines

2006 ◽  
Vol 11 (5) ◽  
pp. 499-506 ◽  
Author(s):  
N. Giorgetti ◽  
G. Ripaccioli ◽  
A. Bemporad ◽  
I.V. Kolmanovsky ◽  
D. Hrovat
Keyword(s):  
Model Predictive Control ◽  
Hybrid Model ◽  
Predictive Control ◽  
Direct Injection ◽  
Stratified Charge

Hybrid Modeling and Control of a Direct Injection Stratified Charge Engine

2002 ◽  
Author(s):  
Alberto Bemporad ◽  
Nicolo` Giorgetti ◽  
Ilya Kolmanovsky ◽  
Davor Hrovat
Keyword(s):  
Direct Injection ◽  
Hybrid Modeling ◽  
Torque Control ◽  
Design Flow ◽  
Gasoline Direct Injection ◽  
Advanced Technology ◽  
Affine Function ◽  
Modeling And Control ◽  
Stratified Charge ◽  
And Control

This paper illustrates the application of hybrid modeling and optimal control to the problem of air-to-fuel ratio and torque control in advanced technology gasoline direct injection stratified charge (DISC) engines. DISC engines have two discrete modes of operation, stratified and homogeneous, and their dynamic behavior can be easily captured by a hybrid model. We show that the design flow (hybrid modeling and controller synthesis) is simple in terms of problem setup and tuning, provides good closed-loop performance, and leads to a control law that can be implemented on automotive hardware as a piecewise affine function of the measured and estimated quantities.

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