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Analysis of a Continuously Variable Transmission Based on a Twin Epicyclic, Power Split Device
Technical Paper
2007-01-1454
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
This research paper is focused on a novel transmission which provides a continuously variable gearbox based on two epicyclic gear sets plus two electric motor/generator units. This design scheme offers potential efficiency benefits over its competitors. It is referred to as a four branch transmission [1], because it has four independent power input and output, namely the engine, two motor/generators and the output shaft of the transmission. A key advantage of the design, when it is used on a hybrid electric vehicle, is that the electrical machines, namely the two motor/generators, and can be downsized compared with the more common, single epicyclic, 3 branch arrangement. A matrix method for the analysis of planetary transmissions [2] is used; the performance and control strategy of the new system is presented.
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Citation
Ren, Q. and Crolla, D., "Analysis of a Continuously Variable Transmission Based on a Twin Epicyclic, Power Split Device," SAE Technical Paper 2007-01-1454, 2007, https://doi.org/10.4271/2007-01-1454.Also In
References
- Hybrid Synergy Drive
- Tian, L. Lu, L Matrix system for automatic vehicle transmission design Journal of Mechanical Design, Transactions of the ASME 1997 119 333 337
- Toyota Prius Transmission 20 10 2006
- Miller, J. M. Miller, J. N. J. Comparative Assessment of Hybrid Vehicle Power Split Transmissions 4'th VI Winter Workshop Series 2005 http://www.engin.umd.umich.edu/vi/w4_workshops/Miller_W04.pdf
- Moeller, F. Power combining single regime transmissions for automotive vehicles Integrated Powertrain and Driveline Systems 2006 London 141 150
- Williams, G. Function gjelim