发明名称 Method for detecting the position of an armature of an electromagnetic actuator
摘要 A method of detecting the position of the armature (3) of an electromagnetic actuator arranged and able to move between first and second coils (1, 2), in which a voltage jump (UB) is applied to the first and the second coils (1, 2) of the actuator connected in series. The first and the second coils (1, 2) form a voltage divider in accordance with the impedance coil principle. The voltage (U1) of the first coil (1) and the voltage (U2) of the second coil (2) are measured and, from the measurement data for the voltages at the first and the second coils (1, 2), the quotient of the difference (DeltaU) between the two voltage values and the voltage jump (UB), normalized in relation to the size of the voltage jump (UB) is calculated, and a specific armature stroke is correlated one-to-one with each value of the quotient.
申请公布号 US8482299(B2) 申请公布日期 2013.07.09
申请号 US200913123736 申请日期 2009.09.10
申请人 PANTKE MICHAEL;KURTH JORG;ZF FRIEDRICHSHAFEN AG 发明人 PANTKE MICHAEL;KURTH JORG
分类号 G01R27/28 主分类号 G01R27/28
代理机构 代理人
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