This content is not included in your SAE MOBILUS subscription, or you are not logged in.
Improvement in Shift Quality in a Multi Speed Gearbox of an Electric Vehicle through Synchronizer Location Optimization
ISSN: 0148-7191, e-ISSN: 2688-3627
Published March 28, 2017 by SAE International in United States
This content contains downloadable datasetsAnnotation ability available
Electrical and Series Hybrid Vehicles are generally provided with single speed reduction gearbox. To improve performance and drive range, a two-speed gearbox with coordinated control of traction motor and gearshift actuator is proposed. For a two-speed gearbox, gearshift without clutch would increase the shifting effort. Active Synchronization is introduced for a smoother gearshift even without clutch. The quality of gearshift is considered as a function of applied shift force and time taken. To enhance the quality of the gearshift further, the location of the synchronizer in the transmission system is optimized. To validate the improvement in the quality of the gearshift, a mathematical model of the two-speed gearbox incorporating proposed location of synchronizer assembly along with active synchronization is developed. The qualitative and quantitative analysis of the results achieved is presented.
CitationPenta, A., Gaidhani, R., Sathiaseelan, S., and Warule, P., "Improvement in Shift Quality in a Multi Speed Gearbox of an Electric Vehicle through Synchronizer Location Optimization," SAE Technical Paper 2017-01-1596, 2017, https://doi.org/10.4271/2017-01-1596.
Data Sets - Support Documents
|[Unnamed Dataset 1]|
- Saini, V., Singh, S., NV, S., and Jain, H., “Genetic Algorithm Based Gear Shift Optimization for Electric Vehicles,”SAE Int. J. Alt. Power. 5(2):348–356, 2016, doi:10.4271/2016-01-9141.
- Lee Hyeoun-Dong, Sul Seung-Ki, Cho Han-Sang and Lee Jang-Moo, “Advanced gear-shifting and clutching strategy for a parallel-hybrid vehicle”, inIEEE Industry Applications Magazine, vol.6, no.6, pp.26–32, Nov/Dec2000.doi:10.1109/2943.877837
- Chyuan-Yow Tseng, C.-H. Y. “Advanced shifting control of synchronizer mechanisms for clutchless automatic manual transmission in an electric vehicle”, Department of Vehicle Engineering, National Pingtung University of Science and Technology, No. 1, Hseuh Fu Road, Nei Pu, Pingtung 91. Mechanism and Machine Theory, ELSVIER, 84, 37–56 (2015)
- Gong Zongyang, Zhang Weigong, Chen Gang, Wang Wanjun:Analyses and Evaluation on Synchronizer of Manual Transmission. PACIIA (1) 2008:842–845