文章基本信息

标题：Nonlinear Flatness-Based Control of Driveline Oscillations for a Powertrain with Backlash Traversing
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作者：True Pham ; True Pham ; Robert Seifried 等
期刊名称：IFAC PapersOnLine
印刷版ISSN：2405-8963
出版年度：2016
卷号：49
期号：11
页码：749-755
DOI：10.1016/j.ifacol.2016.08.109
语种：English
出版社：Elsevier
摘要：Abstract 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.
关键词：KeywordsDriveline OscillationFeedforward ControlBacklashDifferential FlatnessLoad ChangeSet-Point Transition