Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Power adjusting method and device and engineering machinery
The invention provides a power regulation method and device and engineering machinery, and the method comprises the steps: obtaining a real-time working parameter, carrying out the query in a pre-stored corresponding relation table based on the real-time working parameter, obtaining a target current value, i.e., a pump current value corresponding to the real-time working parameter in the table, and controlling the opening degree of a pump proportional valve based on the target current value. Due to the fact that the opening degree of the pump proportional valve is in positive correlation with the pump demand power, control over the pump demand power can be achieved, the effect of automatically adjusting the pump demand power based on the target current value corresponding to the real-time working parameters is achieved, the situation that the pump demand power is too high, and consequently motor speed reduction and even flameout are caused is avoided, and the service life is prolonged. And normal work of the electric excavator where the motor and the pump are located is influenced.
本申请提供了一种功率调节方法、装置及工程机械，通过获取实时的工作参数，基于实时的工作参数在预先存储的对应关系表中进行查询，得到目标电流值即表中与实时的工作参数对应的泵电流值，并基于目标电流值控制泵比例阀的开度，由于泵比例阀的开度与泵需求功率成正相关，可以实现对泵需求功率的控制，达到基于实时的工作参数对应的目标电流值自动调整泵需求功率的效果，避免出现泵需求功率过高导致电机掉速甚至熄火，影响电机和泵所在的电动挖掘机正常工作的现象。
Power adjusting method and device and engineering machinery
The invention provides a power regulation method and device and engineering machinery, and the method comprises the steps: obtaining a real-time working parameter, carrying out the query in a pre-stored corresponding relation table based on the real-time working parameter, obtaining a target current value, i.e., a pump current value corresponding to the real-time working parameter in the table, and controlling the opening degree of a pump proportional valve based on the target current value. Due to the fact that the opening degree of the pump proportional valve is in positive correlation with the pump demand power, control over the pump demand power can be achieved, the effect of automatically adjusting the pump demand power based on the target current value corresponding to the real-time working parameters is achieved, the situation that the pump demand power is too high, and consequently motor speed reduction and even flameout are caused is avoided, and the service life is prolonged. And normal work of the electric excavator where the motor and the pump are located is influenced.
本申请提供了一种功率调节方法、装置及工程机械，通过获取实时的工作参数，基于实时的工作参数在预先存储的对应关系表中进行查询，得到目标电流值即表中与实时的工作参数对应的泵电流值，并基于目标电流值控制泵比例阀的开度，由于泵比例阀的开度与泵需求功率成正相关，可以实现对泵需求功率的控制，达到基于实时的工作参数对应的目标电流值自动调整泵需求功率的效果，避免出现泵需求功率过高导致电机掉速甚至熄火，影响电机和泵所在的电动挖掘机正常工作的现象。
Power adjusting method and device and engineering machinery
功率调节方法、装置及工程机械
YANG SHIBAO (Autor:in) / CUI HUIXI (Autor:in) / ZONG MEIYU (Autor:in)
25.08.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
E02F
Baggern
,
DREDGING
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