This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Effects of Motor and Transmission on Noise Level of Electric Bus Powertrain Using Lead Packaging Method
Technical Paper
2018-01-1281
ISSN: 0148-7191, e-ISSN: 2688-3627
This content contains downloadable datasets
Annotation ability available
Sector:
Language:
English
Abstract
Because of the advantages of excellent power, fuel economy and zero-emission characteristics, electric buses have been used widely as cities’ short-range commuter vehicles. However, the high-frequency noise becomes more prominent for the powertrain system of the electric bus due to the lack of noise masking effect for the traditional internal combustion engine. To improve the noise characteristic of electric bus powertrain, the identification of the main noise source of the powertrain is well needed.
In this paper, the effects of the motor and transmission on the noise level of the electric bus powertrain have been studied using lead packaging method. The variations of acoustical power level of the powertrain according to different rotation speed and torque under the conditions of only motor covered and only transmission covered have been discussed. The operation range of the powertrain has been divided into three regions and are defined as low speed/high torque region, high speed/low torque region and normal operation region, respectively. In addition, a concept of Noise Contribution Index (NCI) has been introduced to evaluate the contribution of the motor and transmission to the overall powertrain noise level in the above mentioned three operation regions.
Results showed that for the low speed/ high torque region and normal operation region, the noise level of the powertrain depends on the transmission noise level, but for the high speed/ low torque region, it changed to the motor noise level. In additions, from the results of the correlation analysis, it showed that the variations of the motor noise level were mainly attributed to the rotation speed, while the variations of the transmission noise level were mainly attributed to the torque.
Authors
Topic
Citation
Liu, H., Yu, H., Liu, Y., and Chen, Y., "Effects of Motor and Transmission on Noise Level of Electric Bus Powertrain Using Lead Packaging Method," SAE Technical Paper 2018-01-1281, 2018, https://doi.org/10.4271/2018-01-1281.Data Sets - Support Documents
Title | Description | Download |
---|---|---|
Unnamed Dataset 1 |
Also In
References
- Xiong , R. , Sun , F. , Gong , X. , and He , H. Adaptive State of Charge Estimator for Lithium-Ion Cells Series Battery Pack in Electric Vehicles Journal of power sources 242 699 713 2013 10.1016/j.jpowsour.2013.05.071
- Tzeng , G.H. , Lin , C.W. , and Opricovic , S. Multi-Criteria Analysis of Alternative-Fuel Buses for Public Transportation Energy Policy 33 1373 1383 2005 10.1016/j.enpol.2003.12.014
- Jolivet , S. , Mezghani , S. , Isselin , J. , and el Mansori , M. Experimental and Numerical Study of Tooth Finishing Processes Contribution to Gear Noise Tribology International 102 436 443 2016 10.1016/j.triboint.2016.06.005
- Dos Santos , F.L.M. , Anthonis , J. , Naclerio , F. et al. Multiphysics NVH Modeling: Simulation of a Switched Reluctance Motor for an Electric Vehicle IEEE Transactions on Industrial Electronics 61 469 476 2014 10.1109/TIE.2013.2247012
- Ma , Z. , Jiang , J. , Shi , W. , Zhang , W. , and Mi , C.C. Investigation of Path Dependence in Commercial Lithium-Ion Cells for Pure Electric Bus Applications: Aging Mechanism Identification Journal of Power Sources 274 29 40 2015 10.1016/j.jpowsour.2014.10.006
- Fang , Y. , Zhang , T. , Yu , P. et al. Experimental Study on Vibration and Noise of Electric Powertrain Journal of Vibration Measurement & Diagnosis 2015 10.16450/j.cnki.issn.1004-6801.2015.02.003
- Fang , Y. and Zhang , T. Sound Quality Investigation and Improvement of an Electric Powertrain for Electric Vehicles IEEE Transactions on Industrial Electronics 65 1149 1157 10.1109/TIE.2017.2736481
- Li Z , Sui N , Wang G. 2011 10.1109/ICEICE.2011.5776874
- Pellerey P , Cristaudo S 2012 10.4271/2012-01-152