东北大学学报（自然科学版）

东北大学学报:自然科学版 ›› 2014, Vol. 35 ›› Issue (1): 101-105.DOI: 10.12068/j.issn.1005-3026.2014.01.024

• 机械工程 • 上一篇    下一篇

重型矿用汽车多参数动力性换挡规律

赵鑫鑫，张文明，冯雅丽，杨耀东   

  1. (北京科技大学 机械工程学院， 北京100083)
  • 收稿日期:2013-04-27 修回日期:2013-04-27 出版日期:2014-01-15 发布日期:2013-07-09
  • 通讯作者: 赵鑫鑫
  • 作者简介:赵鑫鑫(1987-)，女，北京人，北京科技大学博士研究生；张文明(1955-)，男，北京人，北京科技大学教授；冯雅丽(1967-)，女，北京人，北京科技大学教授.
  • 基金资助:
    国家高技术研究发展计划项目(2011AA060404).

Powerful Shifting Strategy and Multiparameters Considered for HeavyDuty Mining Truck

ZHAO Xinxin， ZHANG Wenming， FENG Yali， YANG Yaodong   

  1. School of Mechanical Engineering， University of Science and Technology Beijing， Beijing 100083， China.
  • Received:2013-04-27 Revised:2013-04-27 Online:2014-01-15 Published:2013-07-09
  • Contact: FENG Yali
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摘要： 基于矿用汽车载荷变化大、行驶环境多变、油门变化频繁的特点，依据重载爬坡和轻载下坡的典型工况，制定了重型矿用汽车多参数动力性换挡策略.利用函数叠加法建立康明斯QSL-FR91674型发动机全特性曲线，得到不同油门开度情况下发动机输出转速与输出转矩的表达式.根据发动机输出动力特性，计算得到3550型矿用汽车车速、油门开度和加速度三参数动力性换挡规律.再结合道路状况识别方法、车辆载荷、驾驶员操作意图，针对轻载下坡和重载爬坡工况，修正得到重型矿用汽车多参数动力性换挡规律.在Maplesim中建立换挡模型，通过仿真计算，得到修正前后车辆轻载下坡路况时挡位和车速变化曲线，后者避免了不必要的换挡，保证了车辆的动力性能.

关键词: 矿用汽车, 动力性换挡规律, 换挡参数, 油门开度变化率, 自动变速器

Abstract: The powerful shifting strategy considering multiparameters for mining truck was set up based on the weight， working condition and change rate of throttle angle， uphill with overload and downhill with empty load. The full field performance function of diesel engine Cummins QSLFR91674 was established by the superposition method. In addition， the relationship between engine speed and output torque in different throttle angles was shown by this function. Based on the engine dynamic performance， the powerful shifting strategy of vehicle speed， throttle angle and vehicle acceleration was designed for the mining truck named 3550. The strategy was further optimized combining the identification method for road condition， the state of vehicle load， and the driver intentions. The power train system simulation model was established in Maplesim， and simulation results represent that the optimized strategy can precaution unnecessary shift and improve the dynamic performance for vehicle.

Key words: mining truck, powerful shifting strategy, shifting parameters, change rate of throttle angle, automatic transmission

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