The paper introdeces the research status of hybrid technology at home and abroad ,describes the types and features of hy-draulic hybrid systems ,analyzes the characteristics of parallel hydraulic hybrid loader ,and points out the problems existing in the field and its research directions in future .%介绍了混合动力技术国内外的研究现状、当前应用于工程机械上的混合动力的系统结构、连接方式及其技术特点 ,通过实例说明了液压并联混合动力在装载机行走液压系统的制动能量回收方面的特点和优势 ,并指出了存在的问题及后续的研究方向.
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