-
公开(公告)号：US06412456B2
公开(公告)日：2002-07-02
申请号：US09854480
申请日：2001-05-15
IPC分类号： F01L904
CPC分类号： F01L9/04 , H01F2007/1894
摘要： A valve control system for controlling an electromagnetic valve unit is arranged to detect a characteristic of a free vibration of a vibration system in the electromagnetic valve unit when a pair of electromagnets of the electromagnetic valve unit are de-energized and to estimate at least one of a friction quantity and a spring constant of the vibration system on the basis of the detected characteristic of the free vibration. The control system executes the control of the electromagnetic valve unit on the basis of a control parameter determined by one of the estimated friction quantity and the estimated spring constant. This arrangement improves a certainty of softly landing a movable member of the electromagnetic valve unit on the electromagnets.
-
公开(公告)号：US06497205B2
公开(公告)日：2002-12-24
申请号：US09860582
申请日：2001-05-21
IPC分类号： F01L904
CPC分类号： F01L9/04
摘要： A valve control system for controlling an electromagnetic valve unit is arranged to execute an initialization control for moving a movable member to a start position by alternatively energizing valve opening and closing electromagnets according to a natural frequency of a vibration system of the electromagnetic valve unit. The valve control system detects amplitudes of oscillation of the movable member during the initialization control and calculates an increase-degree of the detected amplitudes. Further, the valve control system estimates a friction quantity of the vibration system on the basis of the calculated increase-degree and controls electric current supplied to the electromagnets on the basis of a control parameter reflecting the estimated friction quantity.
摘要翻译： 用于控制电磁阀单元的阀控制系统被布置成执行用于通过根据电磁阀单元的振动系统的固有频率交替地激励阀打开和关闭电磁体来执行用于将可动构件移动到起始位置的初始化控制。 阀控制系统在初始化控制期间检测可移动部件的振动幅度，并计算检测到的振幅的增加程度。 此外，阀控制系统基于计算的增加度来估计振动系统的摩擦量，并且基于反映估计摩擦量的控制参数来控制供应给电磁体的电流。
-
搜索结果
2 条记录 (耗时 0.01 秒)
