Model Predictive Control of DOC Temperature during DPF Regeneration

Kim, Yong-Wha; Nieuwstadt, Michiel Van; Gregory, Stewart; Pekař, Jaroslav

doi:10.4271/2014-01-1165

Cited by 14 publications

(15 citation statements)

References 13 publications

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“…C liq is the gaseous species concentration of diesel fuel in Equation (5). Similarly, A resid is the pre-exponential factor of Equation (6). E resid is the activation energy of Equation (6).…”

Section: Problem Description and Primary Modelmentioning

confidence: 99%

“…Similarly, A resid is the pre-exponential factor of Equation (6). E resid is the activation energy of Equation (6). C resid is the gaseous species concentration of diesel residue in Equation (6).…”

Section: Problem Description and Primary Modelmentioning

confidence: 99%

“…E resid is the activation energy of Equation (6). C resid is the gaseous species concentration of diesel residue in Equation (6). Finally, n in Equations (10) and (11) represents the reaction order of diesel fuel thermolysis.…”

Section: Problem Description and Primary Modelmentioning

confidence: 99%

“…Post-injection in the cylinder involves adding an extra injection after the normal diesel injection. This method has various advantages, such as a simple structure and low cost; thus, engineers based many works on it [6]. However, its shortcoming, i.e., that it induces lubricating oil dilution, is also obvious [7].…”

Section: Introductionmentioning

confidence: 99%

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Modeling and Order Reduction for the Thermodynamics of a Diesel Oxidation Catalyst with Hydrocarbon Dosing

Zhang

Yao

et al. 2019

Catalysts

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This paper presents an order reduction for the thermal dynamics of a diesel oxidation catalyst (DOC) with hydrocarbon (HC) dosing. The original model includes the pyrolysis of diesel droplets and a wall storage process in the upstream of the DOC. The order reduction process is derived from the thermodynamics model of the DOC for further control design. The results are compared with experimental data. It is found that the DOC can be simplified as a second-order model using the HC dosing model, which has more than 94% fitness, reflecting the thermodynamics of the system. According to this research, the DOC thermal dynamics can be considered to be equivalent to a time-varying second-order system for the investigation. The second-order parameters of K, Tw, and ζ are also investigated in this paper.

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Section: Problem Description and Primary Modelmentioning

confidence: 99%

Section: Problem Description and Primary Modelmentioning

confidence: 99%

Section: Problem Description and Primary Modelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Modeling and Order Reduction for the Thermodynamics of a Diesel Oxidation Catalyst with Hydrocarbon Dosing

Zhang

Yao

et al. 2019

Catalysts

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“…• C [27]. It is done normally by post-injecting fuel, among other procedures like the modification of the main injection timing.…”

Section: Post-injection Strategy Approachmentioning

confidence: 99%

Model-based passive and active diagnostics strategies for diesel oxidation catalysts

Guardiola

Plá

Piqueras

et al. 2017

Applied Thermal Engineering

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This article proposes a diesel oxidation catalyst diagnostics strategy based on the exothermic process generated by exhaust gas species oxidation in the catalyst. The diagnostics strategy is designed to be applied on-board and respecting real-time electronic control unit computational limitations. Diagnosis purposes are fulfilled by means of the comparison of the passive model temperature, which represents the outlet temperature of a non-impregnated diesel oxidation catalyst, and the measurement provided by the on-board catalyst-out temperature sensor. Thus, the presented diagnostics strategy uses only two production grade temperature sensors and the measurements of air and fuel mass flows from the electronic control unit. Passive diagnostics is based on the oxidation of engine-raw emissions, whilst active diagnostics is based on the oxidation of requested post injected fuel. Post-injection strategy is also discussed for active diagnosis. Then, the diagnostics strategy is able to discern whether the diesel oxidation catalyst is able to oxidise or not.

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Robust Real-World Emissions by Integrated ADF and Powertrain Control Development

Willems

Gompel

Seykens³

et al. 2018

Control Strategies for Advanced Driver Assistance Systems and Autonomous Driving Functions

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Model Predictive Control of DOC Temperature during DPF Regeneration

Cited by 14 publications

References 13 publications

Modeling and Order Reduction for the Thermodynamics of a Diesel Oxidation Catalyst with Hydrocarbon Dosing

Modeling and Order Reduction for the Thermodynamics of a Diesel Oxidation Catalyst with Hydrocarbon Dosing

Model-based passive and active diagnostics strategies for diesel oxidation catalysts

Robust Real-World Emissions by Integrated ADF and Powertrain Control Development

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