Internal-combustion engines – Charge forming device – Exhaust gas used with the combustible mixture
Reexamination Certificate
2006-01-31
2006-01-31
Gimie, Mahmoud (Department: 3747)
Internal-combustion engines
Charge forming device
Exhaust gas used with the combustible mixture
C123S568160
Reexamination Certificate
active
06990967
ABSTRACT:
A potentiometer device, for detecting valve positions, wherein a voltage signal Usis sendable to a control unit having an A/D converter, including a carrier element on which at least one slider track, having a slider element in contact therewith, is disposed; wherein the slider track switches between supply voltage Uvof the control unit and ground, and the slider element is connected with the control unit with a protection resistance over an output, wherein the control unit includes a resistance for detecting a cable disconnect, which is a pull-down resistance between voltage signal Usand ground, or a pull-up resistance between supply voltage Uvand voltage signal Us, wherein a resistance is provided at output, that is, in a first embodiment, a pull-up resistance between supply voltage Uvand voltage signal Us, and, in a second embodiment, a pull-down resistance between voltage signal Usand ground.
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German Search Report, dated Mar. 3, 2004.
Griffin & Szipl, P.C.
Pierburg GmbH
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