Automotive and Engine Technology

, Volume 4, Issue 3–4, pp 139–151 | Cite as

Active torsional vibration reduction: potential analysis and controller development for a belt-driven 48 V system

  • Raja Sangili VadamaluEmail author
  • Christian Beidl
  • Guenter Hohenberg
  • Klaus Muehlbauer
Original Paper


Modern internal combustion engines (ICE) reach higher peak pressure thanks to the improved thermodynamic processes and charging technologies. Passive vibration damping approaches face challenges motivating the application of active methods. Active torsional vibration reduction achieves reduced torsional oscillations using the compensation torque generated by an electric traction machine (ETM). 48 V-based hybridization is gaining increased attention as an intermediate step towards higher levels of powertrain electrification. This trend opens new challenges for active vibration reduction with non-inline integration of the ETM using belt drive systems. We analyze the available potential for active torsional vibration attenuation in such belt drive systems in combination with a 48 V belt-driven starter generator (BSG). The study shows that a dual-mass flywheel (DMF) with a centrifugal pendulum absorber can be replaced by a simplified DMF with active vibration reduction using the 48 V BSG system. The effectiveness of active vibration reduction depends on the control functionality. In this contribution, we present an adaptive controller which does not require sensors for reference signal measurement. Besides simulative analysis, the performance of the proposed controller is demonstrated on the experimental test setup with a 2-cylinder ICE and an ETM in an inline configuration.


Active torsional vibration reduction Belt-driven 48 V system Potential analysis Adaptive controller 


Compliance with ethical standards

Conflict of interest

The authors declare that they have no conflict of interest.


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© Springer Nature Switzerland AG 2019

Authors and Affiliations

  1. 1.Institute for Internal Combustion Engines and Powertrain SystemsTU DarmstadtDarmstadtGermany
  2. 2.IVD Deutschland GmbHDarmstadtGermany
  3. 3.Continental RegensburgRegensburgGermany

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