公开(公告)号：US08727453B2

公开(公告)日：2014-05-20

申请号：US13044853

申请日：2011-03-10

申请人： Norihiro Saita ,  Taichi Shibata ,  Masamichi Imamura ,  Shinichiro Nishida ,  Satoshi Doi ,  Tadaharu Yokota

发明人： Norihiro Saita ,  Taichi Shibata ,  Masamichi Imamura ,  Shinichiro Nishida ,  Satoshi Doi ,  Tadaharu Yokota

IPC分类号： B60T11/34 ,  F16K31/02 ,  B60T15/36

CPC分类号： B60T8/36 ,  B60T8/363 ,  B60T13/662 ,  B60T13/686

摘要： A hydraulic pressure control apparatus has an electromagnetic valve having a valve body forced to one side by an elastic member and a coil driving the valve body to the other side; a hydraulic pressure control section for calculating a command current value to drive the electromagnetic valve and controlling a hydraulic pressure in a hydraulic circuit by opening/closing the electromagnetic valve; a current detection section detecting a value of the current passing through the coil; and a command current value correction section. The command current value correction section detects a change of an inductance of the coil when the valve body moves from the one side to the other side or from the other side to the one side through the current detection section, and corrects the command current value using the detected inductance change.

摘要翻译： 液压控制装置具有电磁阀，该电磁阀具有通过弹性部件被迫向一侧的阀体和将阀体驱动到另一侧的线圈; 液压控制部，用于计算驱动电磁阀的指令电流值，并通过打开/关闭电磁阀来控制液压回路中的液压; 检测通过所述线圈的电流的值的电流检测部; 和指令电流值校正部。 指令电流值校正部检测当阀体从一侧向另一侧移动时的线圈的电感变化，或者通过电流检测部检测线圈的另一侧向一侧的电感的变化，并且使用 检测到的电感变化。