关键词: 节能控制, 全局功率匹配与协调, 生产效率, 液压挖掘机

Abstract: The local power match harmony technique about two parts, engine-pump part and pump-load part, is investigated. The reasons of not barmonizing in power between engine-pump and pump-load are analyzed The overall power match harmony technique is proposed, and its realization plan is given. The research provides not only useful information for designing hydraulic excavator with new energy saving control system, but also beneficial reference for power match design of other construction machines.

Key words: Energy saving control, Hydraulic excavator, Overall power match harmony, Productivity