Abstract

In this chapter, various control algorithms for the combined control of burnt gas ratio and intake manifold pressure are investigated. Based on the process model derived, three model-based controllers are designed. The most elaborate one of them is a nonlinear model predictive control (NMPC) algorithm. The design aspects which have been covered in the book, such as offset-free control, are implemented. The choice of several parameters, such as the number of SQP steps or the length of the control horizon, is investigated in detail for the NMPC algorithm. For comparison, a linear MPC (LMPC) algorithm is developed as well, which relies on the linearization of the nonlinear model. Additionally, a decentralized control approach based on PI controllers is investigated. For an appropriate decentralized control synthesis, several modules have to be included, such as decoupling control and anti-reset windup. Finally, the three concepts are compared, including the validation of the NMPC algorithm on an engine test bench.

Full Text
Published version (Free)

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call