Exhaustive Synthesis and Analysis of Automotive 2-Stage Planetary Transmission Designs

Volume 10: 2019 International Power Transmission and Gearing Conference Pub Date : 2019-11-25 DOI:10.1115/detc2019-97753

H. Karhula, M. Nicolai, W. Desmet

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引用次数: 1

Abstract

Most modern automatic automotive transmissions are complex mechanical systems composed of multiple planetary gearsets that are connected by shafts, clutches and brakes. Creating a design that supports the desired transmission ratios while requiring a minimal amount of components is a challenging task that is commonly tackled by an engineer with experience and intuition. This paper introduces an approach for the exhaustive synthesis of automotive transmissions composed of two planetary gearsets, two clutches and two brakes that can be deployed in automotive drivetrains. By modeling the components of an automotive transmission based on their possible mechanical connections and additional user-defined specifications a constraint satisfaction problem is derived. An iterative solving process exhaustively generates all possible transmission design with the specified set of components. Further the generated designs are filtered and analyzed such that the designer is served only with unique, valid and useful transmission designs. Finally a set of generated, novel 4-speed transmission designs is presented.

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汽车两级行星传动设计的详尽综合与分析

大多数现代自动汽车变速器是由多个行星齿轮组组成的复杂机械系统，这些齿轮组通过轴、离合器和制动器连接在一起。在需要最少的组件的情况下，设计出支持所需传动比的设计是一项具有挑战性的任务，通常由有经验和直觉的工程师来解决。本文介绍了一种由两个行星齿轮组、两个离合器和两个制动器组成的汽车传动系统的详尽综合方法。通过对汽车变速器部件的可能机械连接和附加用户定义规格进行建模，推导出约束满足问题。迭代求解过程详尽地生成具有指定组件集的所有可能的传动设计。进一步对生成的设计进行过滤和分析，使设计人员只得到唯一的、有效的和有用的传动设计。最后提出了一套新颖的四速变速器设计方案。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Volume 10: 2019 International Power Transmission and Gearing Conference

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