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World Electric Vehicle Journal is published by MDPI from Volume 9 issue 1 (2018). Articles in this Issue were published by The World Electric Vehicle Association (WEVA) and its member the European Association for e-Mobility (AVERE), the Electric Drive Transportation Association (EDTA), and the Electric Vehicle Association of Asia Pacific (EVAAP). They are hosted by MDPI on as a courtesy and upon agreement with AVERE.
Open AccessArticle

Failure Mechanism of the Transmission Shaft of a New Power Split Hybrid Vehicle

Department of Automotive Engineering, State Key Laboratory of Automotive Safety and Energy, Tsinghua University
Jing-Jin Electric Technologies (Beijing) Co., Ltd.
Author to whom correspondence should be addressed.
World Electr. Veh. J. 2013, 6(2), 345-352;
Published: 28 June 2013
PDF [256 KB, uploaded 18 May 2018]


Power split driveline ensures a hybrid vehicle good performance in fuel economy and emissions, but might bring about serious torsional vibrations at city traffic operation. A power split driveline is addressed in this paper to understand the mechanism behind the failure of its transmission shaft. Lumped-parameter models were established for the system at various engine and motor configurations corresponding to typical working conditions. Natural frequencies and mode shapes were calculated for each configuration. Sensitivity analysis reveals the variation of the natural frequencies with respect to the inertia or stiffness of the system. It is revealed that there exists unavoidable resonance with the system during vehicle operation, which should be the main reason of the shaft failure.
Keywords: hybrid electric vehicle; powertrain; modelling; city traffic hybrid electric vehicle; powertrain; modelling; city traffic
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

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Zhang, Y.; Hou, Z.; Yang, F.; Yu, P. Failure Mechanism of the Transmission Shaft of a New Power Split Hybrid Vehicle. World Electr. Veh. J. 2013, 6, 345-352.

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