1D Modelling of Reactive Fluid Dynamics, Cold Start Behavior of Exhaust Systems

Wurzenberger, Johann C.; Auzinger, Günter; Heinzle, Roman; Wanker, Roland

doi:10.4271/2006-01-1544

Cited by 16 publications

(3 citation statements)

References 41 publications

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“…A number of articles have presented models for a three-way catalytic converter to describe the heat and mass transfer in the after-treatment system and the conversion efficiency as a function of the catalyst brick temperature and the air-to-fuel ratio. 29,30 These models are primarily used for design and evaluation and are too complex for the development of control algorithms. Using simpler models of the catalyst's conversion efficiency makes it possible to design a specific modelbased emissions control for the engine.…”

Section: Introductionmentioning

confidence: 99%

“…A number of articles have presented models for a three-way catalytic converter (TWC) to describe the heat/mass transfer in the after-treatment system and conversion efficiency as a function of the catalyst brick temperature and air to fuel ratio (29), (30). These models are primarily used for design and evaluation and are too complex for the development of control algorithms.…”

mentioning

confidence: 99%

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Design and evaluation of a predictive powertrain control system for a plug-in hybrid electric vehicle to improve the fuel economy and the emissions

Taghavipour

Azad

McPhee

2014

Proceedings of the Institution of Mechanical Engineers, Part D:

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In this article, a power management scheme for a plug-in power-split hybrid electric vehicle is designed on the basis of the model predictive control concept of charge depletion plus charge sustenance strategy and the blended-mode strategy. The commands of model predictive control are applied to the powertrain components through appropriate low-level controllers: standard proportional–integral controllers for electric machines, and sliding-mode controllers for engine torque control. Minimization of the engine emissions is a key factor for designing the engine’s low-level controller. Applying this control scheme to a validated high-fidelity model of a plug-in hybrid electric vehicle, developed in the MapleSim environment with a chemistry-based Lithium-ion battery model, results in considerable improvements in the fuel economy and the emissions performance.

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Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

Design and evaluation of a predictive powertrain control system for a plug-in hybrid electric vehicle to improve the fuel economy and the emissions

Taghavipour

Azad

McPhee

2014

Proceedings of the Institution of Mechanical Engineers, Part D:

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show abstract

“…A number of articles have presented models for a three-way catalytic converter (TWC) to describe the heat/mass transfer in the after-treatment system and conversion efficiency as a function of the catalyst brick temperature and A/F ratio [10]- [15]. These models are primarily used for design and evaluation and are too complex for the development of control algorithms.…”

Section: Introductionmentioning

confidence: 99%

Supervisory Control of Parallel Hybrid Electric Vehicles for Fuel and Emission Reduction

Kum

Peng

Bucknor

2011

Journal of Dynamic Systems, Measurement, and Control

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Past research on hybrid electric vehicles (HEVs) focused primarily on improving their fuel economy. Emission reduction is another important performance attribute that needs to be addressed. When emissions are considered for hybrid vehicles with a gasoline engine, horizon-based optimization methodologies should be used because the light-off of the three-way catalytic converter heavily depends on the warming-up of catalyst temperature. In this paper, we propose a systematic design method for a cold-start supervisory control algorithm based on the dynamic programming (DP) methodology. First, a system-level parallel HEV model is developed to efficiently predict tailpipe emissions as well as fuel economy. The optimal control problem for minimization of cold-start emissions and fuel consumption is then solved via DP. Since DP solution cannot be directly implemented as a real-time controller, more useful control strategies are extracted from DP solutions over the entire state space via the comprehensive extraction method. The extracted DP results indicate that the engine on/off, gear-shift, and power-split strategies must be properly adjusted to achieve fast catalyst warm-up and low cold-start tailpipe emissions. Based on DP results, we proposed a rule-based control algorithm that is easy to implement and adjust while achieving near-optimal fuel economy and emission performance.

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Modeling the Gas Flow Process Inside Exhaust Systems: One Dimensional and Multidimensional Approaches

Montenegro

Onorati

2014

Urea-SCR Technology for deNOx After Treatment of Diesel Exhausts

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1D Modelling of Reactive Fluid Dynamics, Cold Start Behavior of Exhaust Systems

Cited by 16 publications

References 41 publications

Design and evaluation of a predictive powertrain control system for a plug-in hybrid electric vehicle to improve the fuel economy and the emissions

Design and evaluation of a predictive powertrain control system for a plug-in hybrid electric vehicle to improve the fuel economy and the emissions

Supervisory Control of Parallel Hybrid Electric Vehicles for Fuel and Emission Reduction

Modeling the Gas Flow Process Inside Exhaust Systems: One Dimensional and Multidimensional Approaches

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