Control-oriented observer for cylinder pressure estimation of SI engine using frequency response function
by Syed Abbas Ali; Samir Saraswati
International Journal of Modelling, Identification and Control (IJMIC), Vol. 39, No. 2, 2021

Abstract: This paper presents a closed-loop control-oriented observer (COB) for in-cylinder pressure estimation, which utilises a one zone combustion model in the feed-forward loop and frequency response function (FRF) model in the feedback loop. The model uses the phase difference in firing frequency of crankshaft speed as a measure to update COB parameters. The update rate of control parameters in the COB is one engine cycle. The COB is found observable at the top dead centre (TDC). The applicability of the proposed model is illustrated by simulation and experimental results. Further, a comparative study using closed-loop COB, FRF, and sliding mode observer (SMO) methods, is also presented.

Online publication date: Mon, 20-Jun-2022

The full text of this article is only available to individual subscribers or to users at subscribing institutions.

 
Existing subscribers:
Go to Inderscience Online Journals to access the Full Text of this article.

Pay per view:
If you are not a subscriber and you just want to read the full contents of this article, buy online access here.

Complimentary Subscribers, Editors or Members of the Editorial Board of the International Journal of Modelling, Identification and Control (IJMIC):
Login with your Inderscience username and password:

Username:        Password:          Forgotten your password?

Want to subscribe?
A subscription gives you complete access to all articles in the current issue, as well as to all articles in the previous three years (where applicable). See our Orders page to subscribe.

If you still need assistance, please email subs@inderscience.com