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Nonlinear flatness-based control of driveline oscillations for a powertrain with backlash traversing
Citation Link: https://doi.org/10.15480/882.3503
Publikationstyp
Journal Article
Publikationsdatum
2016-08-21
Sprache
English
Institut
TORE-URI
Enthalten in
Volume
49
Issue
11
Start Page
749
End Page
755
Citation
IFAC-PapersOnLine 11 (49): 749-755 (2016)
Contribution to Conference
Publisher DOI
Scopus ID
Publisher
Elsevier
Load changes in automotive powertrains may cause uncomfortable vibrations during vehicle acceleration. These driveline oscillations occur due to flexible and underdamped shafts. Furthermore, backlashes in the drive train represent hard nonlinearities and lead to challenges in control. Reducing vibration only by feedback control may destabilize the closed loop due to time delays in the powertrain system. This paper proposes a flatness-based feedforward control law based on a two-mass powertrain model with backlash to compensate oscillations. In addition, a proportional feedback controller is used to damp remaining oscillations arising from model mismatches and disturbances after the set-point transition. Simulation results show improved tracking performance in comparison to a feedforward approach without considering backlash explicitly.
Schlagworte
Backlash
Differential Flatness
Driveline Oscillation
Feedforward Control
Load Change
Set-Point Transition
DDC Class
600: Technik
620: Ingenieurwissenschaften
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