发明名称 A METHOD AND APPARATUS FOR MEASURING A FLUID LEVEL AND A MOTOR VEHICLE PROVIDED WITH SUCH APPARATUS
摘要 A fluid level (26) is measured through determining an inclination angle of a bracket (32) that rotatably connects a floating member (34) located near a surface of the fluid to a pivoting arrangement (28, 30) which carries a resistor (40) of which a first part is branched off through a slider (42) moving along with a change in the angle. In particular, the following steps are executed. First, connecting a stabilized power supply (U0) with its first terminal in series with a limiting resistor (RV) to one end of the resistor (40); second, measuring the voltages over both the first part (UF) and over a remainder part (UE) of the resistor. Finally, calculating the resistance value of the first part (RX) through eliminating a contact resistance value (RU, 46) associated with the slider from the measurement equations given by the values of the respective voltages (UF, UE).
申请公布号 WO03048698(A1) 申请公布日期 2003.06.12
申请号 WO2002EP11857 申请日期 2002.10.23
申请人 SIEMENS AKTIENGESELLSCHAFT;SINZ, WOLFGANG 发明人 SINZ, WOLFGANG
分类号 B60K15/077;G01F23/36;(IPC1-7):G01F23/36 主分类号 B60K15/077
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