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CN107076129B 用于电磁驱动的往复泵的控制的方法及其实施装置 有权

用于电磁驱动的往复泵的控制的方法及其实施装置
摘要：
通过依据磁衔铁的位置通断供应给电磁铁的电压，电磁驱动的往复活塞的控制影响磁衔铁的速度。在处理中，并不测量磁衔铁的位置，而是从电磁铁的状态变量确定磁衔铁的位置。这可以如下被实现，处理器(11)从测量装置(13)测得的电压值和电流值计算电磁线圈(5)的电阻，从电压，电流和电磁线圈(5)的电阻计算电磁铁(2)中的磁通链的时间变化，从先前的磁通量和时间变化计算电磁铁(2)中的磁通链，从电磁铁(2)中的磁通链和流过电磁线圈(5)的电流来确定磁衔铁(7)的位置，并且依据磁衔铁(7)的位置，借助于通断装置(12)通断电磁线圈(5)上的电压。上述类型的往复式活塞泵及其电子控制用于在车辆和移动工作机械中泵送和/或计量燃料和试剂。
摘要（英）：

A controller of an electromagnetically driven reciprocating pump influences velocity of the magnetic armature by switching voltage applied to the electromagnet depending on the position of the magnetic armature, its position determined from state variables of the electromagnet. A processor calculates electrical resistance of the magnetic coil from the voltage and current measured by the measuring device, and calculates the temporal change of the linked magnetic flux in the electromagnet from the electrical voltage, the current and the resistance of the magnetic coil, and calculates the linked magnetic flux in the electromagnet from an earlier magnetic flux and from the temporal change, and determines the position of the magnetic armature from the linked magnetic flux in the electromagnet and the electrical current through the magnetic coil, and switches the voltage at the magnetic coil by the switching device depending on the position of the magnetic armature.

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