DocumentCode :
2336206
Title :
Model-based control of an electro-pneumatic clutch using a sliding-mode approach
Author :
Prabel, Robert ; Schindele, Dominik ; Aschemann, Harald ; Butt, Saif Siddique
Author_Institution :
Mechatron., Univ. of Rostock, Rostock, Germany
fYear :
2012
fDate :
18-20 July 2012
Firstpage :
1195
Lastpage :
1200
Abstract :
This paper presents a nonlinear model-based control design for an electro-pneumatic clutch for heavy trucks, which is required at start-up or during gear shifts to disconnect the combustion engine from the gear box. This automated actuator disburdens the driver and provides the necessary actuation force according to the large torque transmitted through the powertrain. The proposed cascaded control structure consists of a fast inner control loop for the internal pressure, which is estimated by a nonlinear reduced-order observer, as well as an outer control loop for the clutch position. The design of the feedback part for the clutch position is based on sliding-mode techniques. A Lyapunov-based approach is used for the inner control loop of the internal pressure, which is usually not measured in truck applications. Thereby, high tracking accuracy is achievable for the piston position as controlled variable. The efficiency of the proposed control structure is demonstrated by experimental results from a dedicated test rig.
Keywords :
Lyapunov methods; cascade control; clutches; control system synthesis; electropneumatic control equipment; gears; internal combustion engines; nonlinear control systems; observers; power transmission (mechanical); pressure control; reduced order systems; variable structure systems; Lyapunov-based approach; actuation force; cascaded control structure; clutch position; combustion engine; electro-pneumatic clutch; gear box; gear shifts; heavy trucks; internal pressure inner control loop; nonlinear model-based control design; nonlinear reduced-order observer; outer control loop; powertrain; sliding-mode approach; test rig; Equations; Force; Mathematical model; Mechatronics; Observers; Pistons; Valves;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Industrial Electronics and Applications (ICIEA), 2012 7th IEEE Conference on
Conference_Location :
Singapore
Print_ISBN :
978-1-4577-2118-2
Type :
conf
DOI :
10.1109/ICIEA.2012.6360905
Filename :
6360905
Link To Document :
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