eprintid: 576
rev_number: 13
eprint_status: archive
userid: 7
dir: disk0/00/00/05/76
datestamp: 2011-07-27 09:08:51
lastmod: 2014-07-17 12:40:36
status_changed: 2011-07-27 09:08:51
type: book_section
metadata_visibility: show
item_issues_count: 0
creators_name: Bemporad, Alberto
creators_name: Borrelli, Francesco
creators_name: Glielmo, Luigi
creators_name: Vasca, Francesco
creators_id: alberto.bemporad@imtlucca.it
creators_id: 
creators_id: 
creators_id: 
title: Optimal piecewise-linear control of dry clutch engagement
ispublished: pub
subjects: QA75
subjects: TJ
subjects: TL
divisions: CSA
full_text_status: none
abstract: Based on a discrete-time second order state-space dynamic model of the powertrain system, a piecewise feedback control for the dry clutch engagement process is proposed. The engine speed and the clutch disk speed are assumed to be measurable and the control input is the normal engaging force applied to the disks. The controller is designed by minimizing a quadratic performance index subject to constraints on the normal force, normal force derivative, and engine speed. The resulting Model Predictive Controller (MPC) is shown to consist of a piecewise linear feedback control: the state space can be divided into several regions, such that in each region an off-line computed linear controller must be implemented. The explicit piecewise linear form of the MPC law is obtained by using a multiparametric programming solver and can be tuned so that fast engagement, small friction losses and smooth lock-up are achieved. The paper reports numerical results, carried out by a Simulink/MPC Toolbox simulation scheme and a realistic set of parameters, showing the good performance of the closed-loop system.
date: 2001
publication: IFAC Workshop Advances in Automotive Control
publisher: IFAC
place_of_pub: Karlsruhe, Germany
pagerange: 33-38
event_dates: Karlsruhe, Germany
refereed: TRUE
book_title: Workshop Advances in Automotive Control
related_url_url: http://control.ee.ethz.ch/index.cgi?page=publications&action=details&id=563
citation:   Bemporad, Alberto and Borrelli, Francesco and Glielmo, Luigi and Vasca, Francesco  Optimal piecewise-linear control of dry clutch engagement.   In:  Workshop Advances in Automotive Control.   IFAC, Karlsruhe, Germany, pp. 33-38.       (2001)