三行星齿轮动力分配混合动力传动系统的最优设计
Optimal design of three-planetary-gear power-split hybrid powertrains
AI总结：
本文提出了一种高效搜索和优化方法，系统探索了使用三个行星齿轮的多模式混合动力车的可能设计，识别出8种在启动性能和燃油经济性上更优且使用更少离合器的设计。
摘要：
当今许多混合动力电动汽车（HEVs）使用行星齿轮（PGs）来连接动力传动元件。近期的功率分配HEVs倾向于使用两个PGs，其中一些具有多种模式以实现更好的燃油经济性和驾驶性能。未来，混合动力传动技术必须得到增强，以设计混合轻型卡车。对于轻型卡车，多模式和更多PGs的需求更强，以实现所需性能。为系统探索所有可能的多模式HEVs的三PGs设计，提出了一种高效搜索和优化方法。对现有使用三个PGs的配置的所有可能的离合器拓扑和模式进行了穷举搜索。首先利用启动性能筛选出不满足要求的启动性能的设计。然后采用近最优且计算高效的能量管理策略，识别出在燃油经济性方面表现良好的设计。所提出的设计过程成功识别出8种在启动性能和燃油经济性上更优且使用比基准和专利设计更少离合器数的设计。
英文摘要：
Many of today's power-split hybrid electric vehicles (HEVs) utilize planetary gears (PGs) to connect the powertrain elements together. Recent power-split HEVs tend to use two PGs and some of them have multiple modes to achieve better fuel economy and driving performance. Looking to the future, hybrid powertrain technologies must be enhanced to design hybrid light trucks. For light trucks, the need for multi-mode and more PGs is stronger, to achieve the required performance. To systematically explore all the possible designs of multi-mode HEVs with three PGs, an efficient searching and optimization methodology is proposed. All possible clutch topology and modes for one existing configuration that uses three PGs were exhaustively searched. The launching performance is first used to screen out designs that fail to satisfy the required launching performance. A near-optimal and computationally efficient energy management strategy was then employed to identify designs that achieve good fuel economy. The proposed design process successfully identify 8 designs that achieve better launching performance and better fuel economy, while using fewer number of clutches than the benchmark and a patented design.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
