Title: Partially premixed combustion multi-cylinder engine cycle-to-cycle-oriented temperature estimation and control

Authors: Lianhao Yin; Gabriel Ingesson; Rolf Johansson; Per Tunestål; Bengt Johansson

Addresses: Department of Energy Sciences, Lund University, Lund, Sweden ' Department of Automatic Control, Lund University, Lund, Sweden ' Department of Automatic Control, Lund University, Lund, Sweden ' Department of Energy Sciences, Lund University, Lund, Sweden ' Department of Energy Sciences, Lund University, Lund, Sweden

Abstract: Advanced combustion concepts like partially premixed combustion (PPC) are sensitive to inlet gas conditions especially inlet temperature. To estimate the combustion parameters like ignition delay on a cycle-to-cycle basis, both complementary filter and extended Kalman filter were designed to estimate the inlet temperature, and the ignition delay was calculated with properly estimated temperature. A two valve fast thermal management system was used to control the inlet temperature, and a PI controller with the lambda tuning method was used. The estimation and control algorithm were verified on a six-cylinder heavy duty engine.

Keywords: temperature control; complementary filters; extended Kalman filter; EKF; engine control; PI control; controller design; partially premixed combustion; PPC; multi-cylinder engines; temperature estimation; inlet temperature; ignition delay; thermal management.

DOI: 10.1504/IJPT.2017.082884

International Journal of Powertrains, 2017 Vol.6 No.1, pp.5 - 22

Received: 02 Apr 2015
Accepted: 24 Jun 2015
Published online: 15 Mar 2017 *

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