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Control of a dual-loop exhaust gas recirculation system for a turbocharged Diesel engine

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Abstract

Dual-loop exhaust gas recirculation (EGR) with variable geometry turbocharger (VGT) is an effective technique to simultaneously control intake manifold conditions (pressure, temperature, and burned gas mass fraction) in Diesel engines. To address the control problem for this highly coupled and complicatedly dynamic multi-input multi-output (MIMO) system, this paper proposed a control method with decoupled-feedforward loop. Through investigating the dynamics of airpath loop system, a linear-quadratic regulator (LQR) with a decoupled-eedforward control strategy was utilized for the control of the intake manifold conditions. The proposed method was validated and compared with the conventional LQR method via a high-fidelity GT-Power model.

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Authors and Affiliations

  1. Department of Mechanical Engineering, McMasters University, Hamilton, ON, L8S 4L7, Canada

    S. Chen & F. Yan

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  1. S. Chen
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  2. F. Yan
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Correspondence to F. Yan.

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Chen, S., Yan, F. Control of a dual-loop exhaust gas recirculation system for a turbocharged Diesel engine. Int.J Automot. Technol. 16, 733–738 (2015). https://doi.org/10.1007/s12239-015-0074-6

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  • DOI: https://doi.org/10.1007/s12239-015-0074-6

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