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Power matching method for hydraulic excavator
The invention relates to the technical field of hydraulic excavators, in particular to a power matching method for a hydraulic excavator. The power matching method comprises the following steps of calculating adjustment starting pressure and adjustment starting current by taking the maximum power value of the current gear as adjustment starting power; according to a PQ curve graph, calculating therelation among the pressure, the current and the power; obtaining the relation between the real-time power Q and the real-time pressure P under different pressures according to the calculated pressure and power through an equivalent method; and calculating the double-pump pressure, comparing the values of the double-pump pressure, and selecting different formulas according to the comparison result to calculate the main pump power under the current pressure. According to the method, the power of the power source can be fully utilized to meet the operation requirement of the excavator, the working efficiency of the whole excavator can be improved, in addition, the economic consumption area of the power source can be controlled, and energy consumption is more economical.
本发明涉及液压挖掘机技术领域，具体是一种液压挖掘机功率匹配的方法，以当前档位最大功率值为起调功率，计算出起调压力、起调电流；根据PQ曲线图，推算出压力、电流、功率之间的关系；将上述推算出的压力和功率，通过等效的方法，得出不同压力下实时功率Q与实时压力P之间的关系；计算双泵压力，并比较双泵压力的值，根据比较的结果选择不同的公式计算出当前压力下的主泵功率。本发明提供的方法能充分利用动力源的功率满足挖掘机作业需求，能提升整机的工作效率，另外还能控制在动力源的经济耗区，使能源消耗更为经济。
Power matching method for hydraulic excavator
The invention relates to the technical field of hydraulic excavators, in particular to a power matching method for a hydraulic excavator. The power matching method comprises the following steps of calculating adjustment starting pressure and adjustment starting current by taking the maximum power value of the current gear as adjustment starting power; according to a PQ curve graph, calculating therelation among the pressure, the current and the power; obtaining the relation between the real-time power Q and the real-time pressure P under different pressures according to the calculated pressure and power through an equivalent method; and calculating the double-pump pressure, comparing the values of the double-pump pressure, and selecting different formulas according to the comparison result to calculate the main pump power under the current pressure. According to the method, the power of the power source can be fully utilized to meet the operation requirement of the excavator, the working efficiency of the whole excavator can be improved, in addition, the economic consumption area of the power source can be controlled, and energy consumption is more economical.
本发明涉及液压挖掘机技术领域，具体是一种液压挖掘机功率匹配的方法，以当前档位最大功率值为起调功率，计算出起调压力、起调电流；根据PQ曲线图，推算出压力、电流、功率之间的关系；将上述推算出的压力和功率，通过等效的方法，得出不同压力下实时功率Q与实时压力P之间的关系；计算双泵压力，并比较双泵压力的值，根据比较的结果选择不同的公式计算出当前压力下的主泵功率。本发明提供的方法能充分利用动力源的功率满足挖掘机作业需求，能提升整机的工作效率，另外还能控制在动力源的经济耗区，使能源消耗更为经济。
Power matching method for hydraulic excavator
一种液压挖掘机功率匹配的方法
QIAN YONG (author) / LIU HAO (author) / YAN JIEYIN (author) / PENG WENBIN (author)
2020-05-19
Patent
Electronic Resource
Chinese
IPC:
E02F
Baggern
,
DREDGING
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