Benefits of Feedforward for Model Predictive Airpath Control of Diesel Engines

نویسندگان

چکیده

This paper investigates options to complement a diesel engine airpath feedback controller with feedforward. The control objective is track the intake manifold pressure and exhaust gas recirculation (EGR) rate targets by manipulating EGR valve variable geometry turbine (VGT) while satisfying state input constraints. based on rate-based Model Predictive Control (MPC) that provides integral action for tracking. Two feedforward are considered one look-up table specifies as function of speed fuel injection rate, another (non-rate-based) MPC generates dynamic trajectories. controllers designed verified using high-fidelity model in GT-Power exploit low-order linear parameter-varying (LPV) prediction which identified from transient response data generated model. It shown combination has potential improve performance robustness design. In particular, without can lose stability at low speeds, MPC-based results best response. Mechanisms able assist stabilization discussed.

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ژورنال

عنوان ژورنال: IFAC-PapersOnLine

سال: 2022

ISSN: ['2405-8963', '2405-8971']

DOI: https://doi.org/10.1016/j.ifacol.2022.09.344