Collaborative Optimization of Topology and Size for Three Planetary Gear Hybrid Powertrains
- Delivery
- Available on this site
- Format
- Price
- Non-members (tax incl.)：￥1,100 Members (tax incl.)：￥880
- Publication code
- 20181830
- Paper/Info type
- AVEC
No.ThE2-1
- Pages
- 1-8(Total 8 p)
- Date of publication
- Jul 2018
- Publisher
- Others, Unknown
- Language
- English
- Event
- AVEC '18
Detailed Information
| Category(E) | Hybrid EV Control II |
|---|---|
| Author(E) | 1) Zhaobo Qin |
| Abstract(J) | 直列HEVではエネルギ損失・大寸法モーターが問題であり，新たに2つの出力シャフトのマルチモードハイブリッドPTが提案された．2つのシャフトにより，直進・方向転換・後退が操舵系・変速機なしで可能となる．この最適化に近似解法を持つ多目的最適化手法が用いられ，これによる設計は形状が縮小し，改善された操縦性と低燃費を示した． Translation |
| Abstract(E) | Hybrid tracked vehicles have become increasingly popular for off-road applications due to their better fuel economy and higher output power. Currently, the most popular in the production of tracked vehi-cles are the series hybrid, because of the simpler powertrain designs. They suffer, however, from high energy conversion losses and large propulsion motors. To overcome these issues, a new multi-mode hybrid power-train with two output shafts is proposed. The left and right tracks are driven by the two output shafts of the hybrid powertrain to realize straight driving, turning, and driving backwards without any additional steering mechanism or transmission. To identify the optimal design from among millions of design candidates, a to-pology-control-size-integrated design approach is presented. A novel near-optimal energy management strate-gy, Efficiency Evaluation Real-time Control Strategy (EERCS), is proposed to rapidly calculate near-optimal control rules for candidate designs. The EERCS is confirmed to achieve results similar to those of Dynamic Programming (DP), yet the computation time is over 50 times less. The superior topologies are obtained by automated modelling and rapid screening, while the optimal design is computed using multi-objective optimi-zation with a meta-heuristic algorithm. Results of a case study show that the optimized design with downsized components produces improved drivability and fuel economy compared to the series hybrid benchmark. |
