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Excavator power compensation and fault judgment method and device and readable storage medium
The invention discloses a power compensation and fault judgment method and device for an excavator and a readable storage medium. The power compensation method comprises the steps that the current of a hydraulic pump is collected; raising the hydraulic pump current to raise the hydraulic pump power; if the increased hydraulic pump current is smaller than the set hydraulic pump current threshold upper limit, the hydraulic pump current is adjusted according to the engine instantaneous speed drop and the engine stable state speed drop until the hydraulic pump current is larger than or equal to the set hydraulic pump current threshold upper limit; the upper limit of the hydraulic pump current threshold value serves as the final adjusted hydraulic pump current; if the lifted hydraulic pump current is larger than or equal to the set upper limit of the hydraulic pump current threshold value, the set upper limit of the hydraulic pump current threshold value is directly used as the finally adjusted hydraulic pump current; and performing compensation control on the power of the hydraulic pump by adopting the finally adjusted current of the hydraulic pump, so that the power of the hydraulic pump is matched with the power of the engine, and judging a fault according to the matching condition. Matching of the full-life-cycle engine and the hydraulic system is achieved through structure simplification, user perception is improved, the full-life-cycle power utilization efficiency of the engine is improved, and waste of manpower and material resources is reduced.
本发明公开了一种挖掘机功率补偿及故障判别方法、装置及可读存储介质，功率补偿包括：采集液压泵电流；提升所述液压泵电流，以提升液压泵功率；若提升后的液压泵电流小于设定液压泵电流阈值上限，则根据发动机瞬时掉速和发动机稳定态掉速调整所述液压泵电流，直至所述液压泵电流大于等于设定液压泵电流阈值上限，将所述液压泵电流阈值上限作为最终调整后的液压泵电流；若提升后的液压泵电流大于等于设定液压泵电流阈值上限，则直接将设定的液压泵电流阈值上限作为最终调整后的液压泵电流；采用最终调整后的液压泵电流对液压泵功率进行补偿控制，以使液压泵功率与发动机功率相匹配，并根据匹配情况判别故障。本发明以结构精简实现全生命周期发动机与液压系统匹配，提升用户感知，提高发动机全生命周期功率利用效率，减少人力物力浪费。
Excavator power compensation and fault judgment method and device and readable storage medium
The invention discloses a power compensation and fault judgment method and device for an excavator and a readable storage medium. The power compensation method comprises the steps that the current of a hydraulic pump is collected; raising the hydraulic pump current to raise the hydraulic pump power; if the increased hydraulic pump current is smaller than the set hydraulic pump current threshold upper limit, the hydraulic pump current is adjusted according to the engine instantaneous speed drop and the engine stable state speed drop until the hydraulic pump current is larger than or equal to the set hydraulic pump current threshold upper limit; the upper limit of the hydraulic pump current threshold value serves as the final adjusted hydraulic pump current; if the lifted hydraulic pump current is larger than or equal to the set upper limit of the hydraulic pump current threshold value, the set upper limit of the hydraulic pump current threshold value is directly used as the finally adjusted hydraulic pump current; and performing compensation control on the power of the hydraulic pump by adopting the finally adjusted current of the hydraulic pump, so that the power of the hydraulic pump is matched with the power of the engine, and judging a fault according to the matching condition. Matching of the full-life-cycle engine and the hydraulic system is achieved through structure simplification, user perception is improved, the full-life-cycle power utilization efficiency of the engine is improved, and waste of manpower and material resources is reduced.
本发明公开了一种挖掘机功率补偿及故障判别方法、装置及可读存储介质，功率补偿包括：采集液压泵电流；提升所述液压泵电流，以提升液压泵功率；若提升后的液压泵电流小于设定液压泵电流阈值上限，则根据发动机瞬时掉速和发动机稳定态掉速调整所述液压泵电流，直至所述液压泵电流大于等于设定液压泵电流阈值上限，将所述液压泵电流阈值上限作为最终调整后的液压泵电流；若提升后的液压泵电流大于等于设定液压泵电流阈值上限，则直接将设定的液压泵电流阈值上限作为最终调整后的液压泵电流；采用最终调整后的液压泵电流对液压泵功率进行补偿控制，以使液压泵功率与发动机功率相匹配，并根据匹配情况判别故障。本发明以结构精简实现全生命周期发动机与液压系统匹配，提升用户感知，提高发动机全生命周期功率利用效率，减少人力物力浪费。
Excavator power compensation and fault judgment method and device and readable storage medium
挖掘机功率补偿及故障判别方法、装置及可读存储介质
WANG ZHEN (author) / LIU YUEJI (author) / ZHAO PENGKUN (author) / WANG RONGBIAO (author) / YANG SONGSHAN (author) / CUI XIANGYI (author)
2024-05-24
Patent
Electronic Resource
Chinese
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