Model identification and backstepping control of a continuously variable transmission system

This paper develops a continuous-time model and controller for the drivetrain dynamics and hydraulics governing the ratio dynamics of a metal V-belt continuously variable transmission (CVT). In developing the drivetrain dynamics, the separate notions of geometric ratio and speed ratio and their rela...

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Bibliographic Details
Published inProceedings of the 2001 American Control Conference. (Cat. No.01CH37148) Vol. 6; pp. 4591 - 4596 vol.6
Main Authors Foley, D.C., Sadegh, N., Barth, E.J., Vachtsevanos, G.J.
Format Conference Proceeding
LanguageEnglish
Published IEEE 2001
Subjects
Automobiles
Automotive engineering
Backstepping
Engines
Manufacturing
Mechanical power transmission
Pulleys
Torque
Vehicle dynamics
Vehicles
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Summary:This paper develops a continuous-time model and controller for the drivetrain dynamics and hydraulics governing the ratio dynamics of a metal V-belt continuously variable transmission (CVT). In developing the drivetrain dynamics, the separate notions of geometric ratio and speed ratio and their relation to each other through the output power efficiency of the CVT are introduced. A data driven model is then created to represent the relationship between ratio dynamics and control hydraulics. The controller developed uses backstepping to effectively track a desired engine speed. Exact local asymptotic stability conditions for the controller are presented. A simulation incorporating the entire drive train and vehicle dynamics demonstrates good closed loop behavior of the controlled system.
ISBN:9780780364950
0780364953
ISSN:0743-1619
2378-5861
DOI:10.1109/ACC.2001.945703