Author:
,PODDUBKO Sergey N.,ISHIN Nikolay N., ,GOMAN Arkadiy M., ,SKOROKHODOV Andrey S., ,SHPORTKO Vladimir V.,
Abstract
The article is devoted to the study of dynamic processes in the power unit of electric vehicle when shifting gears in a two-shaft gearbox by means of a cone synchronizer. A two-mass dynamic model is used to obtain analytical dependences. This model of the power unit makes it possible to obtain a qualitative idea and a quantitative assessment of the electric vehicle gearshift process, to select parameters of the laws of engine torque and synchronizer friction moment change. For a more precise description of vibrations in a power unit, taking into account its elastic properties, a three-mass dynamic model is considered. An example of calculating the time of shifting from low gear to top one for the MAZ-4381EE delivery electric truck is given. The studies conducted have shown that the vibrational processes occurring in the power unit of electric vehicle do not significantly affect the dynamic loading of its elements.
Publisher
Joint Institute of Mechanical Engineering of the National Academy of Sciences of Belarus
Reference21 articles.
1. 1. Kharitonov S.A., Abasov E.I. Perspektivy ispolzovaniya korobok peredach v elektricheskikh transportnykh sredstvakh [Prospects of gearbox usage in electric transport]. Trudy NAMI, 2017, no. 2(269), pp. 101-106 (in Russ.).
2. 2. Hajduga A., Kieracińska A. The use of multi-speed mechanical transmission in electric drives. The archives of automotive engineering - Archiwum motoryzacji, 2017, vol. 75, no. 1, pp. 39-67. DOI: https://doi.org/10.14669/AM.VOL75.ART3.
3. 3. Ruan J., Walker P., Zhang N. Comparison of power consumption efficiency of CVT and multi-speed transmissions for electric vehicle. International journal of automotive engineering, 2018, vol. 9, iss. 4, pp. 268-275. DOI: https://doi.org/10.20485/jsaeijae.9.4_268.
4. 4. Ritari A., Vepsäläinen J., Kivekäs K., Tammi K., Laitinen H. Energy consumption and lifecycle cost analysis of electric city buses with multispeed gearboxes. Energies, 2020, vol. 13, iss. 8. DOI: https://doi.org/10.3390/en13082117.
5. 5. Machado F.A., Kollmeyer P.J., Barroso D.G., Emadi A. Multi-speed gearboxes for battery electric vehicles: current status and future trends. IEEE Open journal of vehicular technology, 2021, vol. 2, pp. 419-435. DOI: https://doi.org/10.1109/OJVT.2021.3124411.