EOL Test System for Paddle Switches

Electronic hand levers for motor vehicles, so-called paddle switches, are tested functionally, optically and haptically with this rotary table. Besides electronic measurements of operating current and short circuits, inserted DUTs are tested for luminance, LED color, illumination and quality of symbols by modern camera systems inside the automatic test procedure. A haptical test station with a haptic finger simulates shift operation and documents the measurement values.


  1. Manual loading station

    • Paddle switches are placed on an exchange adapter
    • Left and right paddle switches are tested simultaneously
    • Exchange adapter is transported through the test procedure by an integrated transfer system
    • Green or red LEDs display the test results directly at the loading station

  2. Electronic test

    • Measurements of voltage, operating current and short-circuits
    • Simultaneous contacting of both DUTs

  3. Optic test

    • Testing of luminance, LED color, illumination and quality of symbols
    • Cable core color detection of DUTs connection cables
    • Usage of special camera systems and imaging software MCD Toolmonitor Vision

  4. Haptic test

    • Precision drive by linear motor with motor controller
    • Sensors, measurement amplifiers and a haptic finger perform the shift operation
    • Measurement of switching points, switching resistances and redundancy points
    • Simultaneous recording and valuation of physical measurement data and switching points

Equipment components:

  • Modern camera system (luminance/USB connection)
  • Integrated transport system
  • Universal measurement system UMS1300
  • Control functions via MCD Toolmonitors (SerIO, Visu, PowerSupply, Vision and Data Manager)
  • Thermo label printer
  • LED visualization of test results at loading station
  • NIO handling via slide