Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Thermal management method, controller and thermal management system of electric excavator
The invention discloses a thermal management method, a controller and a thermal management system of an electric excavator. The method comprises the steps that the hydraulic oil temperature of hydraulic oil in a hydraulic oil tank is obtained; and under the condition that the temperature of the hydraulic oil is lower than the first preset oil temperature, the flow of the cooling liquid in the first branch and the flow of the cooling liquid in the second branch are adjusted by controlling the opening degree of the reversing valve, so that the hydraulic oil in the hydraulic oil tank is heated through the cooling liquid flowing in the first branch. The flow of cooling liquid passing through the hydraulic oil tank can be adjusted through the electric control proportional reversing valve according to the temperature of the hydraulic oil, the hydraulic oil is heated through heat of the cooling liquid, the temperature rising speed of the hydraulic oil in the low-temperature environment is increased, the time for waiting for machine warming is shortened, and the machine can rapidly reach the normal working state; meanwhile, the workload of the electronic fan is reduced, and the energy consumption is reduced.
本申请公开了一种电动挖掘机的热管理方法、控制器及热管理系统。该方法包括：获取液压油箱中液压油的液压油温；在液压油温低于第一预设油温的情况下，通过控制换向阀的开度，调整第一支路中冷却液的流量和第二支路中冷却液的流量，以通过第一支路中流动的冷却液加热液压油箱中的液压油。本申请能根据液压油温，通过电控比例换向阀调节经过液压油箱的冷却液流量，通过冷却液的热量对液压油进行加热，提高了低温环境下液压油升温速度，减少了等待暖机的时间，使机器能快速达到正常工作状态，同时减少了电子风扇工作负荷，降低了能耗。
Thermal management method, controller and thermal management system of electric excavator
The invention discloses a thermal management method, a controller and a thermal management system of an electric excavator. The method comprises the steps that the hydraulic oil temperature of hydraulic oil in a hydraulic oil tank is obtained; and under the condition that the temperature of the hydraulic oil is lower than the first preset oil temperature, the flow of the cooling liquid in the first branch and the flow of the cooling liquid in the second branch are adjusted by controlling the opening degree of the reversing valve, so that the hydraulic oil in the hydraulic oil tank is heated through the cooling liquid flowing in the first branch. The flow of cooling liquid passing through the hydraulic oil tank can be adjusted through the electric control proportional reversing valve according to the temperature of the hydraulic oil, the hydraulic oil is heated through heat of the cooling liquid, the temperature rising speed of the hydraulic oil in the low-temperature environment is increased, the time for waiting for machine warming is shortened, and the machine can rapidly reach the normal working state; meanwhile, the workload of the electronic fan is reduced, and the energy consumption is reduced.
本申请公开了一种电动挖掘机的热管理方法、控制器及热管理系统。该方法包括：获取液压油箱中液压油的液压油温；在液压油温低于第一预设油温的情况下，通过控制换向阀的开度，调整第一支路中冷却液的流量和第二支路中冷却液的流量，以通过第一支路中流动的冷却液加热液压油箱中的液压油。本申请能根据液压油温，通过电控比例换向阀调节经过液压油箱的冷却液流量，通过冷却液的热量对液压油进行加热，提高了低温环境下液压油升温速度，减少了等待暖机的时间，使机器能快速达到正常工作状态，同时减少了电子风扇工作负荷，降低了能耗。
Thermal management method, controller and thermal management system of electric excavator
电动挖掘机的热管理方法、控制器及热管理系统
ZHANG XIN (Autor:in) / YUAN ZHUOMIN (Autor:in) / YU JIONG (Autor:in) / CAI CHENG (Autor:in) / DONG ZHIWEI (Autor:in) / SHEN XIAOJIAN (Autor:in)
06.02.2024
Patent
Elektronische Ressource
Chinesisch
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