发明名称 |
METHOD AND APPARATUS FOR DETERMINING A RECOGNITION THRESHOLD |
摘要 |
A method for determining a recognition threshold for recognizing the presence of a tooth or a tooth gap of a position sensor in front of a sensor is presented. The method includes a step of reading in a sensor signal which represents a variation over time of a measured magnetic field when the teeth and the tooth gaps of the position sensor are passed by the sensor. In addition, the method includes a step of ascertaining from the sensor signal a first value based on a minimum value of the sensor signal and a first value based on a maximum value of the sensor signal within a predefined time interval. The method also includes a step of computing a differential absolute value which represents a predetermined percentage of a difference between the value based on the at least one maximum value and a value based on the at least one minimum value of the sensor signal. Lastly, the method includes a step of determining the recognition threshold, so that the recognition threshold represents a value that corresponds to a result of adding the differential absolute value to the first value based on the minimum value of the sensor signal. |
申请公布号 |
EP2659232(A1) |
申请公布日期 |
2013.11.06 |
申请号 |
EP20110790891 |
申请日期 |
2011.10.31 |
申请人 |
ROBERT BOSCH GMBH |
发明人 |
ROLEW, EDUARD;SCHMIDT, VERENA;OPITZ, BERNHARD |
分类号 |
G01D5/14 |
主分类号 |
G01D5/14 |
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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