基于液压泵DA与马达HA联合控制的工程机械波动载荷抑制及节能

发布时间：2018-05-12 18:18

本文选题：机械工程 + DA-HA联合控制　；参考：《中国公路学报》2014年01期

【摘要】：为了提高工程机械发动机-液压驱动系统对波动载荷的自适应性及其动力性与燃油经济性,对液压泵DA、液压马达HA控制原理进行了分析,研究了液压泵DA与液压马达HA联合控制原理与控制算法,并进行了对比试验。研究结果表明:通过柴油机-液压泵DA控制与液压马达HA控制相结合能够提高液压泵和液压马达适应剧烈波动载荷的能力;改善了发动机和液压马达的工作条件,使得发动机工作在额定工况附近,液压马达转速波动幅度明显下降;同时发动机节油效果显著,提高了整机的动力性、经济性与工作平稳性。研究结果为波动载荷下工程机械液压底盘设计提供了理论与试验依据。
[Abstract]:In order to improve the adaptability of engine hydraulic drive system to fluctuating load and its power performance and fuel economy, the control principle of hydraulic pump DAand hydraulic motor HA is analyzed. The combined control principle and control algorithm of hydraulic pump DA and hydraulic motor HA are studied, and the comparative tests are carried out. The results show that the ability of hydraulic pump and hydraulic motor to adapt to violent fluctuation load can be improved by combining DA control with HA control of hydraulic motor, and the working conditions of engine and hydraulic motor are improved. It makes the engine work near the rated working condition, the fluctuation range of the hydraulic motor speed is obviously decreased, and the fuel saving effect of the engine is remarkable, which improves the power performance, economy and working stability of the whole engine. The results provide theoretical and experimental basis for hydraulic chassis design of construction machinery under fluctuating load.
【作者单位】：长安大学施工技术与装备教育部重点实验室;江苏徐州工程机械研究院;一拖(洛阳)动力机械有限公司;西北大学化工学院;
【基金】：中央高校基本科研业务费专项资金项目(CHD2010ZY010) 高速公路施工机械陕西省重点实验室开放基金项目(2013G1502059)
【分类号】：TU603

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