上海交通大学学报

上海交通大学学报 >

2022 , Vol. 56 >Issue 2: 173 - 181

DOI: https://doi.org/10.16183/j.cnki.jsjtu.2020.409

电机与离合器复合控制的电动装载机换挡策略

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  • 1. 华侨大学 机电及自动化学院, 福建 厦门 361021
    2. 厦门厦工机械股份有限公司, 福建 厦门 361021
任好玲(1978-),女,山东省平度市人,博士,主要从事纯电驱动工程机械行走控制方面研究.

收稿日期: 2020-12-02

  网络出版日期: 2022-03-03

基金资助

国家重点研发计划(2020YFB2009904);国家自然科学基金(5187521);国家自然科学基金(51905180);福建省高校产学研重大项目(2019H6015);福建省自然科学基金(2018J01068);福建省自然科学基金(2019J01060)

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Shift Strategy of Electric Drive Loader with Compound Control of Motor and Clutch

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  • 1.College of Mechanical Engineering and Automation, Huaqiao University, Xiamen 361021, Fujian, China
    2.Xiamen XGMA Machinery Co., Ltd., Xiamen 361021, Fujian, China

Received date: 2020-12-02

  Online published: 2022-03-03

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摘要

为了发挥纯电驱动方式的优势,针对电动装载机的传动系统,取消传统机型上效率较低的液力变矩器及倒挡方向离合器.通过分析纯电驱动系统换挡规律,采用电液换挡控制系统控制湿式离合器工作,并基于压力和转速等反馈结合驱动电机主动工作在转速及转矩模式,实现离合器充、泄油过程中转矩及转速的匹配.针对某50型纯电驱动装载机,提出一种基于驱动电机与离合器压力复合控制的纯电驱动装载机换挡控制策略.整车试验结果表明:所提出的控制策略能发挥纯电驱动的优势,换挡时间缩短约50%, 滑摩做功大幅减小,换挡冲击度最大值为14.08 m/s3,在我国车辆推荐限定值17.64 m/s3以内.

关键词： 装载机; 纯电驱动; 复合控制; 控制策略; 换挡品质

本文引用格式

任好玲, 蔡少乐, 陈其怀, 林添良, 郎彬 . 电机与离合器复合控制的电动装载机换挡策略[J]. 上海交通大学学报, 2022 , 56(2) : 173 -181 . DOI: 10.16183/j.cnki.jsjtu.2020.409

Abstract

To give full play to the advantages of pure electric drive, and aimed at the transmission system of electric loader, the low efficiency hydraulic torque converter and reverse direction clutch of traditional models are cancelled. By analyzing the shift law of the pure electric drive system, the electro-hydraulic shift control system is used to control the wet clutch, and based on the feedback of pressure and speed, combined with the driving motor active working in the speed and torque mode, the matching of torque and speed in the process of clutch engagement and disengagement is realized. For a 50-type pure electric drive loader, a shift control strategy of pure electric drive loader based on composite control of drive motor and clutch pressure is proposed. The result of vehicle test shows that the proposed control strategy can give full play to the advantages of pure electric drive. The shift time is reduced by about 50%, the sliding friction work is greatly reduced, and the maximum shift impact is 14.08 m/s3, which is within the recommended limit value of 17.64 m/s3 for Chinese vehicles.

Key words： loader; pure electric drive; compound control; control strategy; shift quality

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