|
|
Power matching method of parallel hybrid excavator |
WANG Dong-yun,PAN Shuang-xia,LIN Xiao,GUAN Cheng |
(College of Mechanical and Energy Engineering, Zhejiang University, Hangzhou 310027,China) |
|
|
Abstract The currently used control strategy of hybrid excavator does not consider the power matching between the power sources, so it is hard to guarantee the control effect.Based on the analysis of hydraulic excavator working condition and the development of a parallel hybrid excavator model, the concepts of hybridization, optimum hybridization and dynamic optimum hybridization were introduced, and the matching degree between the main power source and the auxiliary one was described. The influences of hybridization factor(HF) on the control strategy, fuel economy and drivability were investigated. A new method to decide the HF which is based on the load of the excavator and aims to improve the fuel economy was presented . The simulation shows that the method can get a suitable HF which can guarantee the control effect without the limitation of the power sources, and it can get the best fuel economy without sacreficing the drivability of the hydraulic excavator.
|
Published: 29 November 2009
|
|
并联混合动力挖掘机动力源匹配方法研究
现有的混合动力挖掘机控制策略没有考虑动力源之间的功率匹配问题,因此难以保证其控制效果.在分析液压挖掘机工况、建立并联混合动力挖掘机的仿真模型基础上,引入混合度、最佳混合度和动态最佳混合度的概念,描述主动力源与辅助动力源之间的匹配程度;研究动力源混合度 (HF)对动力总成控制效果、燃油经济性以及动力性能的影响.提出以混合动力工况为基础,燃油经济性为目标的混合度确定方法.经仿真验证,利用该方法得到的混合度能够确保动力总成控制策略控制性能不受动力源的局限,且在满足整机动力性能的同时达到最佳的燃油效率.
|
|
[1] 南條孝夫,今西悦二郎.鹿児島昌之 ハイブリッドショベル省エネ化のための動力シミュレーション[J]. JSAE Transation, 2004,47(44):101106.
NANJO T,IMANISHI E,KAGOSHIMA M. Power simulation for energy saving in htbrid excavator[J]. JSAE Transation,2004,47(44):101106.
[2] 王庆丰,张彦廷,肖清.混合动力工程机械节能效果评价及液压系统节能的仿真研究[J].机械工程学报, 2005,41(12): 135141.
WANG Qing-feng, ZHANG Yan-ting, XIAO Qing. Evaluation for energy saving effect and simulation research on energy saving of hydraulic system in hybrid construction machinery[J]. Chinese Journal of Mechanical Engineering, 2005,41(12):135141.
[3] XIAO Qing, WANG Qing-feng, ZHANG Yan-ting. Control strategies of power system in hybrid hydraulic excavator [J]. Automation in Construction, 2008,17(4): 361367.
[4] 肖清,王庆丰,张彦廷,等.液压挖掘机混合动力系统建模及控制策略研究[J].浙江大学学报:工学版, 2007,41(3):480483.
XIAO Qing,WAN Qing-feng,ZHANG Yan-tin,et al.Study on modeling and control strategy of hybrid system in hydraulic excavators[J]. Jouranl of Zhejiang University:Enginenrring Sciences,2007,41(3): 480483.
[5] KATRASNIK T.Hybridization of powertrain and downsizing of IC engine-A way to reduce fuel consumption and pollutant emissions[J].Energy Conversion And Management, 2007,48(5):14111423.
[6] 张明柱,周志立,徐立友,等.柴油发动机调速特性时连续性数学模型研究[J].农业工程学报, 2004, 20(3):7478.
ZHANG Ming-zhu, ZHOU Zhi-li, XU Li-you,et al.Continuous mathematic model for governing characteristics of diesel engine[J].Transactions of The Chinese Society of Agricultural Engineering, 2004,20(3):7478.
[7] 潘双夏,王冬云,李贵海.基于能量守恒和四线法的SOC估算策略研究[J].汽车工程,2007,29(5):415421.
PAN Shuang-xia,WANG Dong-yun, LI Gui-hai.Research on the estimation strategy of SOC based on law of conservation of energy and four-lines measurement[J].Automotive Engineering, 2007, 29(5):415421.
[8] 王军平,陈全世,林成涛.镍氢电池组的荷电状态估计方法研究[J].机械工程学报, 2005,41(12): 6266.
WANG Jun-ping,CHENG Quan-shi, LIN Chen-tao.Study on estimation of the state of charge of NIMH battery pack for electric vehicle[J]. Chinese Journal of Mechanical Engineering, 2005,41(12):6266.
[9] PLETT G L. Extended Kalman filtering for battery management systems of LiPB based HEV battery packs[J]. Journal of Power Source, 2004,134(2): 262276.
[10] 张彦廷,基于混合动力和能量回收的液压挖掘机节能研究[D]. 杭州: 浙江大学,2006.
ZHANG Yan-tin.Research on energy saving for hydraulic excavators based on hybrid and regeneration[D].Hangzhou: Zhejiang University,2006. |
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
Cited |
|
|
|
|
|
Shared |
|
|
|
|
|
Discussed |
|
|
|
|