发明名称 |
METHOD FOR DETERMINING THE POSITION OF A POSITIONING ELEMENT OF AN ELECTRICALLY-OPERATED ACTUATOR, CORRESPONDING CIRCUIT ARRANGEMENT AND DEVICE |
摘要 |
<p>System determines the position of a control element of an electrically driven actuator. The actuator may be switched on by a controlled switch when a lower threshold value is reached and may be switched off when an upper threshold value is reached. An on-period and an off-period are determined as a function of the lower threshold value, the upper threshold value, and the electric switching behavior of the actuator depending on the position of the control element. From the on-period and the off-period, the position of the control element are determined from a comparison of the quotient of the on-period or off-period and the sum of the on-period and off-period, and from a comparison of the sum of the on-period and the off-period with corresponding stored reference data. The system includes accompanying circuitry for application of the process, and an accompanying device, in particular a hydraulic valve.</p> |
申请公布号 |
EP1525596(A1) |
申请公布日期 |
2005.04.27 |
申请号 |
EP20030766167 |
申请日期 |
2003.07.15 |
申请人 |
HYDAC ELECTRONIC GMBH |
发明人 |
QU, WENMIN;MANNEBACH, HORST, PETER;MORSCH, JOACHIM |
分类号 |
H01F7/18;F02D41/20;G05B19/19;(IPC1-7):H01F7/18 |
主分类号 |
H01F7/18 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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