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A Charge Sustaining Parallel HEV Application of the Transmotor
ISSN: 0148-7191, e-ISSN: 2688-3627
Published March 01, 1999 by SAE International in United States
Annotation ability available
An electromechanical gear is presented along with design examples utilizing the electromechanical gear in hybrid electric vehicle drive trains. The designs feature the electromechanical gear (the Transmotor) in place of traditional mechanical transmissions and/or gearing mechanisms. The transmotor is an electric motor suspended by its shafts, in which both the stator and the rotor are allowed to rotate freely. The motor thus can provide positive or negative rotational energy to its shafts by either consuming or generating electrical energy.
A design example is included in which the transmotor is installed on the output shaft of an internal combustion engine. In this arrangement the transmotor can either increase or decrease shaft speed by applying or generating electrical power, allowing the ICE to operate with a constant speed. A torque splitting device is then employed to absorb excess torque produced by the engine or to create supplementary torque when needed, allowing the ICE to operate with constant torque. Thus a constant speed constant torque engine can be directly coupled to the output drive shaft by using electric machines.
The governing equations, a control strategy and an analysis corresponding to each operating mode of the architecture are presented. The operating regions and boundaries of individual components are investigated and engine, motor and energy storage system sizing are identified.
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CitationMoore, S. and Ehsani, M., "A Charge Sustaining Parallel HEV Application of the Transmotor," SAE Technical Paper 1999-01-0919, 1999, https://doi.org/10.4271/1999-01-0919.
- Davis, Gregory W. “The Development of an Electo-Hydraulically Controlled, Five-Speed Transmission for a Hybrid Electric Vehicle,” SAE Paper No. 980830
- Sodhi, Sameer “Electromagnetic Gearing Applications in Hybrid Electric Vehicles,” Texas A&M University August 1994
- Wakefield, E. H. “History of the Electric Automobile,” SAE Publication 1994
- Weisenburger, G.E. “Electric Motor” Feb. 1900
- Burke A. F. “Hybrid/electric vehicle design options and evaluations,” SAE Journal Publications , Paper No. 920447 Feb. 1992
- Johnston, B. et al “The Continued Design and Development of the University of California, Davis Future Car,” SAW Paper 980487
- Ehsani, M. Rahman K.M. Toliyat H.A. “Propulsion System Design of Electric and Hybrid Vehicles,” IEEE Transaction of Industrial Electronics
- Toliyat, H.A. Rahman K.M. Ehsani M. “Electric Machine in Electric and Hybrid Applications,” Proceedings of ICPE 1995 Seoul 627 635
- Ehsani, M. “Electrically Peaking Hybrid System and Method,” 1996
- Howze, J. Ehsani M. Buntin D. “Optimizing Torque Controller for a Parallel Hybrid Electric Vehicle,” 1996
- Gao, Yimin Rahman K. Ehsani M. “Parametric Design of the Drive Train or an Electrically Peaking Hybrid (ELPH) Vehicle,” ASE paper 970294
- Jeffries, P.N. Corbett A.E. “The Petro-Electric Driv-etrain,” IEEE Colloquium on Motors and Drives for Battery Powered Propulsion 7 1-4 Apr. 1993
- Willis, F.G. Radtke R.R. “Hybrid Vehicle System Analysis,” SAE paper 920447