发明名称 |
Method and device for determining the actuation position of an adjusting element of a motor vehicle |
摘要 |
In order to determine the actuation position of a motor-driven adjusting element of a motor vehicle, a Hall-effect sensor is located in a rotatable magnetic field, wherein a periodic change in the magnetic flux density sensed by the Hall-effect sensor is converted into a binary pulse train in that a pulse transition takes place when an upper switching threshold is positively exceeded and when a lower switching threshold separated from the upper switching threshold by a hysteresis is negatively exceeded. The hysteresis is reduced following an inactive phase of the Hall-effect sensor during which the magnetic field was stationary and/or the Hall-effect sensor was deactivated, if the magnetic flux density at the start of the inactive phase has exceeded the upper switching threshold by no more than a predefined tolerance range.
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申请公布号 |
US8552715(B2) |
申请公布日期 |
2013.10.08 |
申请号 |
US20100843288 |
申请日期 |
2010.07.26 |
申请人 |
SEMINETH MARCO;THOMANN CHRISTIAN;SCHINDHELM THOMAS;BROSE FAHRZEUGTEILE GMBH & CO.;KOMMANDITGESELLSCHAFT |
发明人 |
SEMINETH MARCO;THOMANN CHRISTIAN;SCHINDHELM THOMAS |
分类号 |
G01B7/30 |
主分类号 |
G01B7/30 |
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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