| 新型电控液驱车辆能量再生系统建模与实验 |
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| 引用本文： | 李翔晟,常思勤.新型电控液驱车辆能量再生系统建模与实验[J].农业机械学报,2006,37(10):31-34. |
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| 作者姓名： | 李翔晟 常思勤 |
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| 作者单位： | 南京理工大学机械工程学院 210094 南京市 |
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| 摘 要： | 建立了电控液驱车辆能量再生系统各元件蓄能器、变量泵/马达、飞轮以及液压回路的分析模型和系统模型。以蓄能器压力和温度、泵/马达的转矩和效率、压力损失和飞轮的转速为时间参变量,采用四阶Runge-Kutta算法求解微分方程。用以此计算的系统变量确定能量损耗和循环效率。实验结果表明:能量损耗主要产生于液压泵/马达,约占总能量损失的32.64%;系统循环效率在62%~89%;损失能量回收率76%,能量损耗与蓄能器的有效容积、飞轮的初速度和转动惯量有关。
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| 关 键 词： | 车辆 静液压传动 能量回收 循环效率 |
| 收稿时间： | 04 5 2005 12:00AM |
| 修稿时间： | 2005年4月5日 |
Modeling and Experimental Research on Energy Regeneration System for New Vehicle with Electronic Control of Hydrostatic Transmission |
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| Li Xiangsheng,Chang Siqin.Modeling and Experimental Research on Energy Regeneration System for New Vehicle with Electronic Control of Hydrostatic Transmission[J].Transactions of the Chinese Society of Agricultural Machinery,2006,37(10):31-34. |
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| Authors: | Li Xiangsheng Chang Siqin |
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| Institution: | Nanjing University of Science and Technology |
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| Abstract: | The models of the energy regeneration system that consist of an accumulator, a variable displacement pump/motor, connecting lines and flywheel have been set up. In order to solve the differential equations, the fourth order Runge-Kutta integration method was selected. The results showed that of the 32. 64 % of the total energy loss was attributable to the hydraulic pump/motor. The variation in constant-volume specific heat of gas was less than 2%, constant thermal time was 60 s, accumulator was found to operate essentially and adiabatically with little thermal loss. During a series of experiments, energy was repeatedly transferred between the hydraulic accumulator and the flywheel through the pump/motor. Computed system varied favorably in comparison with the experimental results. At moderate and high motor/pump displacement, the round trip efficiency varied from 62%- 89%. It was lower at small displacement. Efficient saving rate of the loss energy was 76%, and related to the effective volume of accumulator, initial speed and inertia of flywheel. |
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| Keywords: | Vehicle Hydrostatic transmission Energy regeneration Round trip efficiency |
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