Figure: Investigations on the auxiliary units

INVESTIGATIONS ON THE AUXILIARY UNITS

The system analysis of auxiliary units and the belt starter-generator includes the measurement and evaluation of slip and dynamic behavior of an auxiliary unit system on an internal combustion engine. The variables to be recorded include the speed of the torsional vibration dampers and belt pulleys, the belt force and belt dynamics, especially on the idle run of the belt. Another important variable is the load on the assemblies, which include the alternator and the air-conditioning compressor. In the case of a belt-starter-generator system, the dynamic change in the system behavior when switching between the idle run and the load run must also be analyzed.

 

TIME RANGE ANALYSES

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  • Belt loads
  • Bearing forces
  • Tensioner preload and damping forces
  • Force vector calculation depending on the tensioner position
  • Slip behavior in the overall transmission
  • Start and stop behavior
  • Speed gradient and peak torque evaluations

ANALYSES IN THE SPECTRAL RANGE

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  • Resonance behavior of the tensioner
  • Resonance behavior of the overall transmission
  • Automatic generation of result tables
  • Decoupling behavior