集成地图信息和个性化驾驶特性的串并联混合动力变速器能源管理策略

IF 15 1区 工程技术 Q1 ENERGY & FUELS
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引用次数: 0

摘要

整合行驶过程中的多源智能互联信息,并将其在线应用于全局优化能源管理策略,已成为提高混合动力变速器节能效果的重要技术手段。然而,这些信息的作用模式和现有动态编程(DP)方法的优化计算效率限制了上述具有全局优化能力的策略的在线应用。针对这些问题,本研究提出了一种遵循电池充电状态(SoC)参考轨迹并综合考虑驾驶行程多源信息的分层能源管理策略。首先,提出基于个性化驾驶特征的全局速度预测模型,为空域 DP 方法获得精确的驾驶周期输入。其次,在双核控制器中部署了上述任务以及混合动力变速器的工作模式决策和多动力源扭矩分配计算任务。最后,通过车辆测试验证了分层能源管理策略。与 DP 策略相比,所提出的策略具有 4.17% 的节能潜力,但尚未实现。此外,与充电消耗和充电维持(CD-CS)策略相比,所提出的策略每百公里可降低 0.38 升油耗,节能效果显著。这项研究首次将 DP 方法应用于车辆控制器,从而促进了具有全局优化能力的能源管理策略的在线应用。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Energy management strategy of series–parallel hybrid transmission integrating map information and personalized driving characteristics

Energy management strategy of series–parallel hybrid transmission integrating map information and personalized driving characteristics

The integration of multi-source intelligent and connected information during a driving trip, along with its online application to globally optimized energy management strategies, has emerged as a crucial technical approach for enhancing the energy-saving effectiveness of hybrid transmissions. However, the action mode of such information and the optimization calculation efficiency of existing dynamic programming (DP) methods limit the online application of the aforementioned strategies with global optimization capabilities. To address these problems, the present study proposes a hierarchical energy management strategy that follows the reference trajectory of the battery state of charge (SoC) and comprehensively considers the multi-source information on the driving trip. First, a global speed prediction model based on personalized driving characteristics is proposed to obtain an accurate driving cycle input for the space-domain DP method. Second, the aforementioned tasks as well as the working-mode decision of the hybrid transmission and the multi-power-source torque distribution calculation tasks are deployed in the dual-core controller. Finally, the hierarchical energy management strategy is verified via vehicle testing. Compared with the DP strategy, the proposed strategy has an energy-saving potential of 4.17% that is yet to be realized. Furthermore, compared with the charge-depleting and charge-sustaining (CD–CS) strategy, the proposed strategy reduces fuel consumption by 0.38 L per 100 km, and its energy-saving effect is significant. This study is the first to apply the DP method to the vehicle controller, thereby facilitating the online application of energy management strategies with global optimization capabilities.

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来源期刊
Etransportation
Etransportation Engineering-Automotive Engineering
CiteScore
19.80
自引率
12.60%
发文量
57
审稿时长
39 days
期刊介绍: eTransportation is a scholarly journal that aims to advance knowledge in the field of electric transportation. It focuses on all modes of transportation that utilize electricity as their primary source of energy, including electric vehicles, trains, ships, and aircraft. The journal covers all stages of research, development, and testing of new technologies, systems, and devices related to electrical transportation. The journal welcomes the use of simulation and analysis tools at the system, transport, or device level. Its primary emphasis is on the study of the electrical and electronic aspects of transportation systems. However, it also considers research on mechanical parts or subsystems of vehicles if there is a clear interaction with electrical or electronic equipment. Please note that this journal excludes other aspects such as sociological, political, regulatory, or environmental factors from its scope.
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