Energy-saving control system and method of excavator hydraulic system: Fid-Bau Portal

Energy-saving control system and method of excavator hydraulic system

CHEN XINGLIN / WANG WEI

The invention relates to the technical field of hydraulic control, and discloses an energy-saving control system and method for an excavator hydraulic system, and the energy-saving effect is achieved by controlling the temperature of hydraulic oil and the temperature of a cooling system of the excavator hydraulic system. The method mainly comprises the steps that the optimal working temperature range of hydraulic oil of a hydraulic system is obtained, and under different testing strategies, the influence of the hydraulic oil temperature change on the excavation weight and the time needed by the cooling system for reducing the hydraulic oil temperature are measured under the condition that the cooling system of the excavator does not work. In actual work, the temperature of a hydraulic system is adjusted according to a hydraulic oil temperature control strategy, and the action of an excavator arm is controlled according to a manual or automatic mode; the system achieves automatic energy-saving control through the temperature sensor, the hydraulic clutch device and the control module, and the working efficiency and the energy-saving effect of the excavator are effectively improved.

本发明涉及液压控制技术领域，且公开了一种挖掘机液压系统的节能控制系统及方法，通过对挖掘机液压系统液压油温度和冷却系统温度的控制，实现节能效果；其主要过程包括：获取液压系统液压油的最佳工作温度范围，分别在不同的测试策略下，测定挖掘机在冷却系统不工作的情况下，液压油温度变化对挖掘重量的影响，以及冷却系统将液压油温度降低所需的时间。在实际工作中，依据液压油温度控制策略对液压系统进行温度调节，并根据手动或自动模式对挖掘机机臂的动作进行控制；系统通过温度传感器、液压离合装置和控制模块实现自动化节能控制，有效提升挖掘机的工作效率和节能效果。

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