Title :
A comparative study on approaches to state and disturbance estimation for a vehicle combustion heating system
Author :
Butt, Saif Siddique ; Prabel, Robert ; Aschemann, Harald
Author_Institution :
Dept. of Mechatron., Univ. of Rostock, Rostock, Germany
Abstract :
In this paper, a comparison of three alternative estimation approaches for a vehicle combustion heating system is presented: 1) a Luenberger observer, 2) a reduced-order observer, and 3) a discrete-time Kalman filter. The estimated temperatures (representing state variables) and unknown disturbance heat flows are employed within a model-predictive on-off control structure. The observer design as well as the model-predictive on-off control are based on a control-oriented model of a combustion heating system, that is frequently installed in road vehicles like buses, cars, and trucks. To evaluate the alternative estimation strategies, the root-mean-square error between the measured and estimated states, the sensitivity w.r.t. noise, and the computational effort are considered. The advantages and disadvantages of each estimation strategy are discussed based on both simulations and experimental results obtained from a dedicated test rig.
Keywords :
Kalman filters; combustion; control system synthesis; discrete time filters; heat systems; observers; predictive control; reduced order systems; road vehicles; temperature control; Luenberger observer; alternative estimation approaches; discrete-time Kalman filter; disturbance estimation; disturbance heat flows; estimation strategy; model-predictive on-off control structure; observer design; reduced-order observer; road vehicles; state estimation; state variables; temperatures; vehicle combustion heating system; Combustion; Heat engines; Heating; Observers; Temperature measurement;
Conference_Titel :
Methods and Models in Automation and Robotics (MMAR), 2013 18th International Conference on
Conference_Location :
Miedzyzdroje
Print_ISBN :
978-1-4673-5506-3
DOI :
10.1109/MMAR.2013.6669927