液力变矩器与发动机的功率匹配与转速感应控制

张泽宇; 惠记庄; 卜正锋; 丁凯; 谷立臣

doi:10.13433/j.cnki.1003-8728.2018.0109

液力变矩器与发动机的功率匹配与转速感应控制

doi: 10.13433/j.cnki.1003-8728.2018.0109

1.
长安大学公路养护装备国家工程实验室, 西安 710064;
2.
陕西航天动力高科技股份有限公司, 西安 710077;
3.
西安建筑科技大学机电工程学院, 西安 710055

基金项目:

国家科技支撑计划项目（2015BAF07B02）、中央高校创新团队项目（310825153403）及中央高校优秀博士生计划项目（310825175010）资助

详细信息

作者简介:
张泽宇(1990-),博士研究生,研究方向为工程机械机电液一体化、机械传动与控制,zhangzeyu@chd.edu.cn

通讯作者:
惠记庄,教授,博士生导师,huijz6363@chd.edu.cn

计量
- 文章访问数: 250
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- PDF下载量: 5
- 被引次数: 0
出版历程
- 收稿日期: 2016-09-11
- 刊出日期: 2018-01-15

Power Matching and Speed Sensing Control between Hydraulic Torque Converter and Engine

1.
National Engineering Laboratory for Highway Maintenance Equipment, Chang'an University, Xi'an 710064, China;
2.
Shaanxi Aerospace Power Co., Ltd., Xi'an 710077, China;
3.
School of Mechanical-electronic Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China

摘要

摘要: 为了提高装载机的工作性能，减小燃油消耗，对不同工况下液力变矩器与发动机的功率匹配与转速感应控制进行研究。根据装载机的作业方式，选择154 kW发动机的最佳工作曲线与340 mm的液力变矩器的主要工况点进行功率匹配。根据装载机的多参数工况识别与工况点的控制原则，对发动机进行转速感应控制。以50型装载机为研究对象，建立分工况转速感应传动系统模型，并与传统方式进行对比计算。结果表明：在铲掘工况下，装载机输出扭矩提高了约25.6%，综合燃油消耗量下降了21.6%；在卸载工况下，综合燃油消耗量从32 g/h下降到8.5 g/h；在行驶工况下，高效经济模式限制了发动机4%的输出功率，综合燃油消耗量降低了7.5%，最经济工况模式限制了发动机30%的输出功率，综合燃油消耗量降低了36.8%。
- 工程机械 /
- 功率匹配 /
- 转速感应控制 /
- 装载机 /
- 工况识别
Abstract: In order to improve the performance of a loader and reduce its fuel consumption, the power matching and speed sensing control between the hydraulic torque converter and the engine was researched. Based on the loader's operating mode, the best working curve of 154 kW engine and the main operating point of 340 mm hydraulic torque converter were selected for power matching. According to the operating condition identification and the control principle of the loader, the speed sensing control of the engine was carried out. Taking the 5-ton loader as an example, the model of the speed sensing control system based on condition identification was established and the calculation results were compared with the traditional method. The results show that:in the excavation condition, the output torque of the loader increases by 25.6% and the fuel consumption reduces by 21.6%. In the unloading condition, the fuel consumption decreases from 32 g/h to 8.5 g/h. In the driving condition, the efficient economic mode limites the output power by 4%, reduces fuel consumption by 7.5%. In the most economical mode, the power of engine limites by 30%, and the fuel consumption reduced by 36.8%.
- construction machinery /
- power matching /
- speed sensing control /
- loader /
- operating condition identification

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参考文献(22)

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