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首页> 外文会议>Transmissions amp; drivelines, 2012. >Analysis and Guidelines for Design of Efficient Power-Split Systems
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Analysis and Guidelines for Design of Efficient Power-Split Systems

机译：高效功率分割系统设计分析和准则

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The article is divided into two parts. The first part is dedicated to the analysis of mechanical systems by means of the matrix method. The power of the matrix method lies in its easy implementation in computer calculations. In this article we will present the program "SunGear." This program is devoted to calculation of such Power-split systems and complete analysis of mechanical stepped planetary gearboxes. The second part of the article will describe the analysis of Power-split systems. In our study we focus on Power-split systems with mechanical CVT. The analysis will be presented by means of two examples: a). IVT (no shift elements) with the spread from reverse (ratio equals -2) up to the overdrive with a ratio of 0,6. The power is split between CVT (spread 0,25 up to 4) and mechanical gear set. The differential (planetary or bevel gear device with 2 degrees of freedom) is placed on the input or on the output of the mechanism. A set of 24 different compositions of mechanisms which fulfill the given kinematic constraints was obtained. The comparison of all found solutions is made mainly based on the overall efficiency and magnitude of circulating power. According to the analysis the guidelines for design of an efficient IVT system were developed. b). Power-split CVT, where the combination of differential, CVT and mechanical gearset is made mainly to increase the torque capacity in case of usage of mechanical CVT and for increase of efficiency in case of usage of hydrodynamic of hydrostatic CVT. As distinct from the IVT's the Power-split CVT systems can be designed without circulating power. The guidelines of design of Power-split CVT systems without circulating power will be presented.
机译：文章分为两个部分。第一部分致力于通过矩阵方法对机械系统进行分析。矩阵方法的强大之处在于它易于在计算机计算中实现。在本文中，我们将介绍程序“ SunGear”。该程序专门用于此类动力分配系统的计算以及对机械式步进行星齿轮箱的完整分析。本文的第二部分将描述电源分割系统的分析。在我们的研究中，我们重点研究具有机械CVT的功率分配系统。该分析将通过两个示例进行介绍：a）。 IVT（无换挡元件），从反向（比率等于-2）到超速传动比的传动比为0.6。功率分配在CVT（蔓延0,25到4）和机械齿轮组之间。差速器（具有2个自由度的行星齿轮或锥齿轮装置）放置在机构的输入或输出上。获得了满足给定运动学约束的一组24种不同的机构组成。所有找到的解决方案的比较主要基于总效率和循环功率的大小。根据分析，制定了有效的IVT系统设计指南。 b）。动力分配式CVT，其中差速器，CVT和机械齿轮组的组合主要是为了在使用机械CVT的情况下增加扭矩容量，并在使用流体静力CVT的情况下提高效率。与IVT的不同之处在于，功率分配CVT系统的设计无需循环电源。将介绍无循环功率的功率分配CVT系统的设计指南。

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