Development test bench for electric actuators

Fields of application

• Function development, optimisation and validation for electric drive systems
• Analysis of drive functions in the HiL network (ECU and BLDC motors, for example, possibly with transmission)
• Identification properties and dynamics, also under specific climatic conditions

Test bench architecture and modules

• Load machine and modular load drive configurations for flexible operation
  • with highly dynamic load machine (e.g. ±12 000 U/min, ±20 Nm with high power density)
  • with/without flywheel mass, with freely rotating or clamped test item
• Electricity supply for test item
  • Vehicle electrical system simulations (12/24/48V) for power as well as logic and energy recovery with dynamic bidirectional power supply units (up to ±450 A)
  • Optional battery switch to connect a battery simulator
  • Optional integrated supercaps to simulate storage in vehicle power supply systems
• Temperature or climatic simulation
  • Temperature (-40 … +150°C) and humidity control (10...85% RH)
  • Standard or customer-specific chambers, units and interfaces
• Metrology
  • Torque and speed measuring technology with applicable measuring ranges and resolutions
  • Measurement of current, voltage, temperature and acceleration
  • Optional integration of electrical power meters

Automation and functions

• Manual and highly automated analysis of characteristics, efficiency or long-term stability
  • Determination of harmonics, torques and step responses
  • Automatic identification of transmission functions and test item parameters
  • Database-oriented test sequencer for developing specific test programmes
  • Flexible model integration and extension options for FIU functions
  • Automatic report generation of test results with DIAdem