摘要 |
The device has 2 parallel, redundant electrical lines (2), each contg. a redundant switch (4) with at least one pair of contacts. The 2 switches (4) are operated by a common mechanical dead-point spring and a pivot plate (14), via a continuously adjustable displacement source, so that the switches act as a dual switch (10), coupled to an interrogation device, for determining the switch condition of both pairs of switch contacts. Pref. the displacement sensor is directly acted on by a mechanical linear or rotary movement, or acts as a transducer for a non-mechanical physical parameter, e.g. a temp.-dependent expansion element or a bimetallic element. USE/ADVANTAGE - Eg for vehicle main and redundant stand-by switches, which are changed over when current sensed failure occurs in one line. Reliable diagnosis of function of switch contact pairs. |
申请人 |
AUDI AG, 85057 INGOLSTADT, DE |
发明人 |
PENSEL, GERHARD, DIPL.-ING. (TU), 8070 INGOLSTADT, DE;KREIPP, ALFONS MARTIN, DIPL.-ING. (FH), 8070 INGOLSTADT, DE;WINKLER, JOSEF, DIPL.-ING. (FH), 8079 KIPFENBERG, DE |