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Electric Vehicle Drivetrain Efficiency and the Multi-Speed Transmission Question.
- Source :
- World Electric Vehicle Journal; Dec2023, Vol. 14 Issue 12, p342, 16p
- Publication Year :
- 2023
-
Abstract
- The availability of high-fidelity energy consumption estimates and the ability to evaluate drivetrain efficiency are crucial for effectively planning a large-scale transition to electric vehicles. For both new and retrofitted electric vehicles, a key question is the transmission type—single-speed or multi-speed—and the resulting impact on the vehicle's overall efficiency. This paper presents a comprehensive simulation-based methodology for evaluating the impact of transmission selection on vehicle efficiency using high-fidelity driving cycle data. The method can be used for new vehicles and retrofit applications where a transmission is already present. The efficiency of a single-speed reduction gearbox was compared to that of a five-speed multi-speed transmission in a retrofitted vehicle, of which the impact of the manual transmission on the vehicle dynamics and efficiency was examined. The manual transmission proved to be more efficient for a perfect gear-shifting strategy. [ABSTRACT FROM AUTHOR]
- Subjects :
- ELECTRIC vehicles
INFECTIOUS disease transmission
ENERGY consumption
Subjects
Details
- Language :
- English
- ISSN :
- 20326653
- Volume :
- 14
- Issue :
- 12
- Database :
- Complementary Index
- Journal :
- World Electric Vehicle Journal
- Publication Type :
- Academic Journal
- Accession number :
- 174493746
- Full Text :
- https://doi.org/10.3390/wevj14120342