All hydraulic load sensing steering that supplies oil on demand preferentially and valve working hydraulic system of single pump priority are economic and energy-saving.

优先按需供油的全液压负荷传感转向及单泵优先阀门工作液压系统，经济节能。

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Electro-hydraulic proportional sectional valves are realized with load sensing control, and the pump output power is adaptive to load, the system effectiveness is highly enhanced.

通过对电液比例多路阀进行负载敏感控制，实现泵和负载之间的功率匹配，显著提高系统效率。

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Additionally, the coordinate principle of variable displacement pump with constant power control and load-sensing control system is demonstrated, and establish the constant power control model.

针对液压泵恒功率调节系统，建立了动态数学模型并对恒功率调节与负载传感系统的控制协调机理进行分析。

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