Planetary gear (PG) power-split hybrid powertrains have been used in producing hybrid and plug-in hybrid vehicles from the Toyota, General Motor, and Ford for years. Some of the most recent designs use clutches to enable multiple operating modes to improve launching performance and/or fuel economy. Adding clutches and multiple operating modes, however, also increases production cost and design complexity. To enable an exhaustive but fast search for optimal designs among a large number of hardware configurations, clutch locations, and mode selections, an automated modeling and screening process is developed in this paper. Combining this process with the power-weighted efficiency analysis for rapid sizing method (PEARS), an optimal and computationally efficient energy management strategy, the extremely large design space of configuration, component sizing, and control becomes feasible to search through. This methodology to identify optimal designs has yet to be reported in the literature. A case study to evaluate the proposed methodology uses the configuration adopted in the Toyota Hybrid Synergy (THS-II) system used in the Prius model year 2010 and the Hybrid Camry. Two designs are investigated to compare with the simulated Prius design: one uses all possible operating modes; and the other uses a suboptimal design that limits the number of clutches to three.
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December 2015
Research-Article
Efficient Exhaustive Search of Power-Split Hybrid Powertrains With Multiple Planetary Gears and Clutches
Xiaowu Zhang,
Xiaowu Zhang
Department of Mechanical Engineering,
University of Michigan,
Ann Arbor, MI 48109
e-mail: xiaowuz@umich.edu
University of Michigan,
Ann Arbor, MI 48109
e-mail: xiaowuz@umich.edu
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Shengbo Eben Li,
Shengbo Eben Li
State Key Laboratory of Automotive
Safety and Energy,
Tsinghua University,
Beijing 100084, China;
Safety and Energy,
Tsinghua University,
Beijing 100084, China;
Department of Mechanical Engineering,
University of California, Berkeley,
Berkeley, CA 94720
University of California, Berkeley,
Berkeley, CA 94720
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Huei Peng,
Huei Peng
Department of Mechanical Engineering,
University of Michigan,
Ann Arbor, MI 48109;
University of Michigan,
Ann Arbor, MI 48109;
State Key Laboratory of Automotive
Safety and Energy,
Tsinghua University,
Beijing 100084, China
Safety and Energy,
Tsinghua University,
Beijing 100084, China
Search for other works by this author on:
Jing Sun
Jing Sun
Department of Naval Architecture
and Marine Engineering,
University of Michigan,
Ann Arbor, MI 48109
and Marine Engineering,
University of Michigan,
Ann Arbor, MI 48109
Search for other works by this author on:
Xiaowu Zhang
Department of Mechanical Engineering,
University of Michigan,
Ann Arbor, MI 48109
e-mail: xiaowuz@umich.edu
University of Michigan,
Ann Arbor, MI 48109
e-mail: xiaowuz@umich.edu
Shengbo Eben Li
State Key Laboratory of Automotive
Safety and Energy,
Tsinghua University,
Beijing 100084, China;
Safety and Energy,
Tsinghua University,
Beijing 100084, China;
Department of Mechanical Engineering,
University of California, Berkeley,
Berkeley, CA 94720
University of California, Berkeley,
Berkeley, CA 94720
Huei Peng
Department of Mechanical Engineering,
University of Michigan,
Ann Arbor, MI 48109;
University of Michigan,
Ann Arbor, MI 48109;
State Key Laboratory of Automotive
Safety and Energy,
Tsinghua University,
Beijing 100084, China
Safety and Energy,
Tsinghua University,
Beijing 100084, China
Jing Sun
Department of Naval Architecture
and Marine Engineering,
University of Michigan,
Ann Arbor, MI 48109
and Marine Engineering,
University of Michigan,
Ann Arbor, MI 48109
1Corresponding author.
Contributed by the Dynamic Systems Division of ASME for publication in the JOURNAL OF DYNAMIC SYSTEMS, MEASUREMENT, AND CONTROL. Manuscript received January 5, 2015; final manuscript received August 21, 2015; published online September 23, 2015. Assoc. Editor: Junmin Wang.
J. Dyn. Sys., Meas., Control. Dec 2015, 137(12): 121006 (12 pages)
Published Online: September 23, 2015
Article history
Received:
January 5, 2015
Revised:
August 21, 2015
Citation
Zhang, X., Eben Li, S., Peng, H., and Sun, J. (September 23, 2015). "Efficient Exhaustive Search of Power-Split Hybrid Powertrains With Multiple Planetary Gears and Clutches." ASME. J. Dyn. Sys., Meas., Control. December 2015; 137(12): 121006. https://doi.org/10.1115/1.4031533
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