The invention discloses a hoisting operation energy-saving control method, device and system and engineering machinery. The hoisting operation energy-saving control method comprises the steps that when hoisting action is carried out, the rotating speed of a motor is obtained, and the flow needed by hoisting is obtained through the displacement and the speed ratio of the motor; in combination with the pump efficiency optimal working state, motor parameters are adjusted to the current efficiency optimal value; when the variable-amplitude action is carried out, the variable-amplitude angle is obtained, and the flow needed by variable-amplitude operation is obtained; the rotating speed of the motor is adjusted to meet the current flow requirement, and the current efficiency optimal value is adjusted; when the arm stretching action is carried out, the length variation of the suspension arm is obtained, and the flow required by stretching operation is obtained; the current flow demand is guaranteed, the rotating speed of the motor is adjusted to meet the current flow demand, and the current efficiency optimal value is adjusted; during the rotation action, the rotation speed is obtained, and the flow needed by rotation is obtained; the rotating speed of the motor is adjusted to meet the current flow requirement, and the current efficiency optimal value is adjusted. The requirement for the operation speed is met, the energy consumption is reduced, and the continuous operation time is prolonged.
本发明公开了一种吊重作业节能控制方法、装置、系统及工程机械包括当进行起升动作时,获取马达转速,通过马达排量和速比,得到起升需要的流量;结合泵效率最优工作状态,调整电机参数,调整到当前效率最优值;当进行变幅动作时,获取变幅角度,得到变幅作业需要的流量;调节电机转速,满足当前流量需求,调整到当前效率最优值;当进行伸臂动作时,获取吊臂长度变化量,得到伸缩作业需要的流量;保证当前流量需求,调节电机转速,满足当前流量需求,调整到当前效率最优值;回转动作时,获取回转速度,得到回转需要的流量;调节电机转速,满足当前流量需求,调整到当前效率最优值。本发明既满足对作业速度的需求,降低能耗,提高连续作业时间。
Energy-saving control method, device and system for hoisting operation and engineering machinery
吊重作业节能控制方法、装置、系统及工程机械
2023-11-10
Patent
Electronic Resource
Chinese
IPC: | B66C Krane , CRANES |
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