利用三参数自动换挡策略的轮式装载机传动系建模与遗传算法优化

吉林大学学报(工学版) ›› 2011, Vol. 41 ›› Issue (增刊1): 27-33.

利用三参数自动换挡策略的轮式装载机传动系建模与遗传算法优化

王继新¹, 龚大鹏¹, 张英爽¹, 邓继业¹, 沈勇²

1. 吉林大学机械科学与工程学院, 长春 130022;
2. 徐州工程机械科技股份有限公司, 江苏徐州 221005

收稿日期:2010-11-25 出版日期:2011-09-01 发布日期:2011-09-01
作者简介:王继新(1975 ),男,副教授,博士.研究方向:新能源车辆传动技术.E-mail:jxwang@jlu.edu.cn.
基金资助:
国家自然科学基金项目(50805065,51075179)

Modeling of wheel loader powertrain with three-parameters shift strategy and optimization with genetic algorithm

WANG Ji-xin¹, GONG Da-peng¹, ZHANG Ying-shuang¹, DENG Ji-ye¹, SHEN Yong²

1. College of Mechanical Science and Engineering, Jilin University, Changchun 130022, China;
2. Xuzhou Construction Machinery Science and Technology Co Ltd, Xuzhou 221005, China

Received:2010-11-25 Online:2011-09-01 Published:2011-09-01

摘要/Abstract

摘要：

将液压系统负载的分流系数作为动态参数引入换挡策略,提出了以油门开度、车速、液压系统负载分流系数为控制参数的装载机三参数自动换挡策略,避免了传统换挡策略将液压系统负载作为常值而产生的不良换挡行为。建立了传动系动力学仿真模型,通过分析油耗特性和传动系载荷信号验证了仿真模型的合理性。在此基础上构建了基于遗传算法的传动性能优化模型,结果表明:利用本文建立的仿真模型和三参数换挡曲面得到的优化解可以使传动系在满足动力性能要求的情况下燃油消耗更低。

关键词: 车辆工程, 轮式装载机, 传动系, 换挡策略, 载荷模拟, 遗传算法

Abstract:

A three-parameter shift strategy of wheel loader using throttle opening,vehicle speed,and coefficient of hydraulic load as control parameters was proposed.Bad shift behavior caused by traditional method,which treats the load of hydraulic system as a constant,was avoided.The dynamic simulation model of powertrain was established,the rationality of which was verified through analyzing the characteristics of fuel consumption and load signals of powertrain.A transmission performance optimization model based on genetic algorithm was constructed.The simulation results showed that the optimization solution obtained by the simulation model and three-parameter shift strategy can achieve lower fuel consumption on the condition that the powertrain meets the dynamic requirements.

Key words: vehicle engineering, wheel loader, powertrain, shift strategy, load simulation, genetic algorithm

中图分类号:

U463.2

王继新, 龚大鹏, 张英爽, 邓继业, 沈勇. 利用三参数自动换挡策略的轮式装载机传动系建模与遗传算法优化[J]. 吉林大学学报(工学版), 2011, 41(增刊1): 27-33.

WANG Ji-xin, GONG Da-peng, ZHANG Ying-shuang, DENG Ji-ye, SHEN Yong. Modeling of wheel loader powertrain with three-parameters shift strategy and optimization with genetic algorithm[J]. 吉林大学学报(工学版), 2011, 41(增刊1): 27-33.

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