[1]赵勇,王媛媛,魏路路.串联混合动力推土机能量管理策略[J].长安大学学报(自然科学版),2019,39(02):108-116.
　ZHAO Yong,WANG Yuan yuan,WEI Lu lu.Energy management strategy of series hybrid bulldozer[J].Journal of Chang’an University (Natural Science Edition),2019,39(02):108-116.
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串联混合动力推土机能量管理策略()
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长安大学学报（自然科学版）[ISSN:1006-6977/CN:61-1281/TN]

卷:
第39卷
期数:
2019年02期
页码:
108-116
栏目:
汽车与机械工程
出版日期:
2019-03-31

文章信息/Info

Title:
Energy management strategy of series hybrid bulldozer
作者:
赵勇; 王媛媛; 魏路路
(长安大学 道路施工技术与装备教育部重点实验室，陕西 西安 710064)
Author(s):
ZHAO Yong;  WANG Yuanyuan;  WEI Lulu
（Key Laboratory of Highway Construction Technology and Equipment of Ministry of Education,Changan University, Xian 710064, Shaanxi, China）
关键词:
机械工程; 混合动力; 推土机; 能量管理; 燃油经济性
Keywords:
mechanical engineering;  hybrid;  bulldozer;  energy management;  fuel economy
文献标志码:
A
摘要:
以提高整车的最小燃油消耗为控制目标，研究了串联混合动力推土机的能量管理策略。首先，根据双电机独立驱动的串联混合动力推土机结构，建立了发动机、发电机、电机及其控制器、超级电容、推土机动力学的数学模型；然后，基于发动机最佳燃油消耗功率曲线，提出一种恒温器式与功率跟随式相结合的能量管理控制策略；最后，采用MATLAB/Simulink软件，通过理论与试验相结合建模方法对串联混合动力推土机的整机和控制策略进行了仿真建模，利用130 s推土机的典型工况对动力源的能量分配和综合工况的经济性进行了仿真研究。研究结果表明：该策略可对发动机输出功率与超级电容充放电功率进行合理分配，满足整车功率需求，超级电容充放电次数明显减少且荷电状态（SOC）值在最佳工作区间内；混合动力发动机比原机型发动机燃油消耗率降低，发动机负载波动也明显减小，原机型发动机燃油消耗量为1 512 g，混合动力发动机燃油消耗量为1 358 g，其比原机型节油10.2%，整机燃油经济性得到明显提高。该方法是一种有效的串联混合动力推土机能量管理方法。
Abstract:
To improve the minimum fuel consumption of the vehicle as a control target, the energy management strategy of a series hybrid bulldozer was studied. First, according to the structure of two independent motors of a series hybrid bulldozer, the mathematical models of the engine, generator, motor and its controller, ultracapacitor, and dynamic of bulldozer were established. Next, the combination method of thermostat and the power following energy management strategy were proposed， based on optimal fuel consumption power curve of the engine. Finally, the series hybrid bulldozer and its control strategy were simulated by MATLAB/Simulink software by modeling method of combining the theory and experiment. The energy distribution of power source and the economy of comprehensive working conditions were simulated by using the typical working conditions of the 130 s bulldozer. The results show that this strategy can reasonably distribute the engine output power and the charging and discharging power of the supercapacitor to meet the power demand of the vehicle. Consequently, the charging and discharging times of the supercapacitor are reduced. The SOC value is in its best working range. The fluctuation of engine load is also significantly reduced. The fuel consumption of the original engine is 1 512 g and that of the hybrid engine is 1 358 g. The fuel consumption is reduced by 10.2%. Therefore, the proposed method is effective for energy management. 14 figs, 23 refs.

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更新日期/Last Update: 2019-04-01