发明名称 |
METHOD OF DETECTING A SWITCHING POSITION OF A SWITCHING DEVICE |
摘要 |
A switch is formed by a branch including a measurement resistance and a selectable one of switching resistances having different nominal values such that a switch position depends on which switching resistance is selected. The measurement resistance is connected through the selected switching resistance to a supply voltage whereby a voltage drop dependent on the switch position is across the measurement resistance. A controller identifies the switch position by comparison of a measured value (UM1) of the voltage drop with target voltage drops corresponding to switch positions, calculates a voltage drop (Uges) across the branch based on nominal values of the measurement and selected switching resistances and the supply voltage, forms a difference value (UDiff) between a measured value (UVcc) of the supply voltage and the branch voltage drop (Uges), and qualifies the identified switch position as faulty when the difference value (UDiff) exceeds a difference threshold value (UDiff-S). |
申请公布号 |
EP2593754(B1) |
申请公布日期 |
2016.05.25 |
申请号 |
EP20110748596 |
申请日期 |
2011.07.11 |
申请人 |
LEOPOLD KOSTAL GMBH & CO. KG |
发明人 |
WAGNER, MARTIN;BÜHLMANN, RAINER;THORMANN, WERNER;KOBER, SVEN;KATHOL, MEINOLF |
分类号 |
G01D3/08;B60Q1/14;G01D5/252;H01H1/00;H03K17/00 |
主分类号 |
G01D3/08 |
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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