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Control-oriented Modeling of Three-Way Catalyst Temperature via Projection-based Model Order Reduction

Zhu, Zhaoxuan, Zhu

Abstract Details

2018, Master of Science, Ohio State University, Mechanical Engineering.
Thermal management of aftertreatment devices is nowadays becoming a critical requirement to comply with the stringent emission standards. A recent challenge in aftertreatment control and diagnostics is the need to monitor the temperature distribution along the entire length of the catalyst, rather than relying on a single-point measurement. To this extent, this work focuses on the development and validation of a control-oriented, physics-based Three Way Catalytic Converter (TWCC) model for the purpose of real-time thermal monitoring. Starting from the governing equations in Partial Di erential Equation (PDE) form, a model order reduction technique that combines Proper Orthogonal Decomposition and Collocation is developed. The sensitivity of the selection of the empirical basis functions is studied. To include the exothermic effect of chemical reactions, an Arti cial Neural Network is trained. To study the accuracy of the reduced order model, two high-fidelity models using Finite Di erence Method and commercial simulation software GT-Power are developed. The reduced order model executes much faster than using standard numerical methods, meanwhile providing comparable accuracy. The model is validated against GT-POWER in the ability to predict the temperature distribution, the peak temperature and its axial location in US-06 Drive Cycle.
Marcello Canova (Advisor)
Shawn Midlam-Mohler (Committee Member)
99 p.

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Citations

  • Zhu, Zhu, Z. (2018). Control-oriented Modeling of Three-Way Catalyst Temperature via Projection-based Model Order Reduction [Master's thesis, Ohio State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=osu1534271429299604

    APA Style (7th edition)

  • Zhu, Zhu, Zhaoxuan. Control-oriented Modeling of Three-Way Catalyst Temperature via Projection-based Model Order Reduction. 2018. Ohio State University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=osu1534271429299604.

    MLA Style (8th edition)

  • Zhu, Zhu, Zhaoxuan. "Control-oriented Modeling of Three-Way Catalyst Temperature via Projection-based Model Order Reduction." Master's thesis, Ohio State University, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=osu1534271429299604

    Chicago Manual of Style (17th edition)