Modeling and Torsional Vibration Control Based on State Feedback for Electric Vehicle Powertrain

Zai Min Zhong; Qiang Wei

doi:10.4028/www.scientific.net/AMM.341-342.411

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 341-342Modeling and Torsional Vibration Control Based on...

Modeling and Torsional Vibration Control Based on State Feedback for Electric Vehicle Powertrain

Abstract:

Electric vehicles will longitudinally vibrate obviously under acceleration and regenerative braking conditions (because of torsional vibration of the electric vehicle powertrain). This paper includes models of motor rotor, gear reducer and differential assembly, half shafts, tire and body and nonlinear powertrain dynamic model in consideration of gear backlash and frictional characteristics between tire and ground. Real car tests confirm that it is correct under acceleration conditions. Then a two mass-spring damper linear model which is simplified from the nonlinear powertrain dynamic model is proposed to design torsional vibration control algorithm based on state feedback. The simulation results show that the algorithm can actively eliminate torsional vibration.

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Periodical:

Applied Mechanics and Materials (Volumes 341-342)

Pages:

411-417

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.341-342.411

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Online since:

July 2013

Authors:

Zai Min Zhong, Qiang Wei

Keywords:

Electric Vehicle Powertrain, State Feedback, Torsional Vibration Control

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