Dynamic power matching for wheel loader based on power reflux hydrodynamic transmission system

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2024-07-25 DOI:10.1177/09544070241261107

Yingzhe Kan, Shuangyi Xie, Qin Yin, Wei Jiang, Min Yang, Run Qian

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引用次数: 0

Abstract

The power reflux hydrodynamic transmission system (PRHTS) has the advantages of flexible transmission, low-speed torque multiplication, adaptive adjustment of speed ratio to external load, and improved torque converter (TC) transmission efficiency. Therefore, it is highly suitable for wheel loaders. Wheel loaders usually work in harsh environments with complex and changing working conditions, and static power matching makes it challenging to fully utilize wheel loaders’ performance. In response to the above issues, this paper proposes a dynamic power matching optimization design method for PRHTS with capacity adjustment gear (CAG) based on wheel loader. The optimization design method obtains data through V-shaped working condition experiments of the wheel loader, and conducts clustering analysis on the data to obtain high-frequency kinematic segments and their characteristic parameters. On this basis, combined with the analysis of the working principle of PRHTS, the system structural parameters are optimized and designed. Compared with static power matching, the dynamic power matching optimization design method increases the average traction force by 4.9 kN, improves the transmission efficiency by 2.6%, reduces the average fuel consumption rate by 3.66 g (kW·h)−1, and reduces the fuel consumption per V-cycle by 27.7 ml in V-shaped working conditions.

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基于动力回流液力传动系统的轮式装载机动态动力匹配

动力回流液力传动系统（PRHTS）具有传动灵活、低速扭矩倍增、根据外部负载自适应调节速比、提高变矩器（TC）传动效率等优点。因此，它非常适合轮式装载机。轮式装载机通常工作在环境恶劣、工况复杂多变的环境中，静态动力匹配使轮式装载机性能的充分发挥面临挑战。针对上述问题，本文提出了一种基于轮式装载机的带容量调节齿轮（CAG）的 PRHTS 动态功率匹配优化设计方法。该优化设计方法通过轮式装载机的 V 型工况实验获取数据，并对数据进行聚类分析，得到高频运动线段及其特征参数。在此基础上，结合对 PRHTS 工作原理的分析，对系统结构参数进行优化设计。与静态功率匹配相比，动态功率匹配优化设计方法使平均牵引力提高了 4.9 kN，传动效率提高了 2.6%，平均燃料消耗率降低了 3.66 g (kW-h)-1，在 V 型工况下每 V 循环燃料消耗量降低了 27.7 ml。

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.