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Fast Analog Capturing Module

Capturing injection control voltage

  • Capturing injection control voltage and calculating injection quantity for piezo actuators of SI engines
  • Analog plug-on module for the DS2302 Direct Digital Synthesis Board
  • Up to 6 modules with one DS2302

Hardware Details

  • 16-bit resolution
  • 1 megasample per second sampling rate
  • 2 channels
  • ±10 V input range
  • Optional external trigger input

Software Details

  • Integration (Euler) on DS2302 slave DSP in 8 ... 10 µs
  • Threshold values for starting and stopping computation included
  • Capture of n injection pulses (currently n=3 per cylinder) per 720° crankshaft revolution
  • Values provided to the master via dual-port memory