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MCD14-010_pr_stresstest-parkbremse.pdf
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New adjustment for stress testing of switch modules
Birkenfeld, September 9, 2014: For the pattern-accompanying endurance test of switch modules for the electric parking brake, the measurement technology specialist, MCD, developed an new adjustment. The frame fits all standard cabinets and can accommodate positioning of up to six switches. All materials of the test frame are made to withstand the extreme temperature ranges between - 40 to + 150 ° C (surface temperature). Specially shaped test sockets each take up one switch. The inclination of the switch can be adjustable in such a wide range that the switches are always tested in the position which they actually occupy in the vehicle.
The most recently delivered frame was a basic one designed to test two different switch types. For each type, a suitable test socket and the corre-sponding actuator units have been delivered. The operating of a button and rocker is caused by a dynamic pressure surge and mounting forks. The switch can thus be stressed in different ways in continuous operation under changing climate conditions. Achmed Haddou presenting this devel-opment explained: "One does not need to be a computer scientist in order to parameterize the adjustment. The drive commands, ramps and speeds can be defined in LabView, Hyper terminal or C #. The transmission of the PLC commands are via RS232, Profibus-DP or CAN open interfaces."
The system is used to support the tests already in the development phase. The molding post plates are tilted by 90°, thus facilitating the inser-tion of the test samples. In addition, an access method was created to con-tact the samples custom connectors. The actuator is also as simple ex-changeable as the molding plate. Finely adjustable preload bolts provide defined forces of the integrated compression and extension springs.
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MCD Elektronik GmbH
Hoheneichstr. 52 | 75217 Birkenfeld | Fon +49 7231 78 405-49 | Fax +49 7231 78 405-10
Ms. Verena Feidy, verena.feidymcd-elektronik.SPAMPROTECTION.de
