吉林大学学报(工学版) ›› 2015, Vol. 45 ›› Issue (4): 1139-1147.doi: 10.13229/j.cnki.jdxbgxb201504017

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串联式混合动力推土机节能率的解析分析

张宝迪1, 张欣1, 席利贺1, 刘林2   

  1. 1.北京交通大学 机械与电子控制工程学院,北京 100044;
    2.潍柴动力股份有限公司 新能源技术中心,山东 潍坊 261001
  • 收稿日期:2013-12-17 出版日期:2015-07-01 发布日期:2015-07-01
  • 通讯作者: 张欣(1959-),女,教授,博士生导师.研究方向:新能源汽车技术.E-mail:zhangxin@bjtu.edu.cn
  • 作者简介:张宝迪(1988-),男,博士研究生.研究方向:车辆混合动力技术.E-mail:baodizhang@126.com
  • 基金资助:
    “十二五”国家科技支撑计划项目(2011BAG04B02); 中央高校基本科研业务费专项项目(2013YJS076)

Analysis of energy saving ratio in series hybrid electric bulldozer

ZHANG Bao-di1, ZHANG Xin1, XI Li-he1, LIU Lin2   

  1. 1.School of Mechanical, Electronic and Control Engineering, Beijing Jiaotong University, Beijing 100044, China;
    2.New Energy Technology Center,Weichai Power Co., Ltd., Weifang 261001, China
  • Received:2013-12-17 Online:2015-07-01 Published:2015-07-01

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摘要： 为探究混合动力推土机的节能效果、原因和潜力,推导出等效节油率与其影响因素的关系方程。将仿真与解析法相结合,分析了节能原因以及部件效率和循环工况对节能效果的影响,计算了等效节油率的极限值。结果表明:在典型循环工况下,节能主要源于电传动路径上较高的部件效率。在部件效率中,发动机效率对等效节油率的影响最显著。等效节油率随着推土阻力或行驶速度的提高而降低。不同优化措施下的节能极限可以利用解析式求得。

关键词: 机械设计, 混合动力系统, 推土机, 等效节油率, 等效能量转换效率, 解析法

Abstract: In order to explore the effect, the mechanism and the potential of energy saving in using series hybrid electric bulldozer, an analytical formula was deduced to present the relationship between the Equivalent Fuel Saving Ratio (EFSR) and the influencing factors. Combing simulation and analytical method, the mechanism of energy saving and the impacts of components' efficiencies and drive cycles on the energy saving effect were analyzed. The limit values of the EFSR were calculated. Results show that under typical drive cycle, the energy saving mainly originates from the higher components' efficiencies in the diesel-electric routine of the powertrain; the engine efficiency has the largest influence on the EFSR among all components' efficiencies. With the increase in bulldozing resistance or vehicle speed, the EFSR decreases. Moreover, the energy saving limit under various optimization measures can be calculated using the proposed analytical formula.

Key words: mechanical design, hybrid electric powertrain, bulldozer, equivalent fuel saving ratio, equivalent energy conversion efficiency, analytical method

中图分类号: 

  • TU623.5
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