2017 IEEE International Conference on Mechatronics (ICM) 2017
DOI: 10.1109/icmech.2017.7921150
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Comparison of effect on motor among 2-, 3- and 4-speed transmission in electric vehicle

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Cited by 8 publications
(3 citation statements)
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“…The comparison of the single-speed and two-speed transmission systems, shown in Figure 10, demonstrates that they differ in the number of gears. Although increment of the number of gears leads to the increase of the mechanical losses in transmission system, the overall efficiency of the machine in the presence of multi-speed transmission system is higher [144]. This improvement of the efficiency resulted from the operation of the electric machine in the field weakening region where its efficiency is higher.…”
Section: Transmission System (Mechanical Drivetrain) Lossesmentioning
confidence: 99%
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“…The comparison of the single-speed and two-speed transmission systems, shown in Figure 10, demonstrates that they differ in the number of gears. Although increment of the number of gears leads to the increase of the mechanical losses in transmission system, the overall efficiency of the machine in the presence of multi-speed transmission system is higher [144]. This improvement of the efficiency resulted from the operation of the electric machine in the field weakening region where its efficiency is higher.…”
Section: Transmission System (Mechanical Drivetrain) Lossesmentioning
confidence: 99%
“…Literature shows the significance of the speed in determination the transmission system efficiency [153] in comparison to the role of other factors. It has been shown that the maximum efficiency of the transmission systems is not higher than 95% [144,153]. Thus, this portion of the loss must not be ignored when the total efficiency of an EV is studied.…”
Section: Loss and Efficiency In The Single And Multi-speed Transmission Systemsmentioning
confidence: 99%
“…However, under conditions of different routes, the requirements of the quantity of speeds are different. 10 A new all-electric vehicle layout was developed, including two powertrains, each of which included a two-speed transmission for improving vehicle acceleration and grade ability. [11][12][13] Therefore, the development of electric vehicle transmission systems has become a trend.…”
Section: Introductionmentioning
confidence: 99%