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EV Bus

MEA EV-RDS Four-Quadrant Operation – Bus Testing.

MEA supplies innovative solutions for combined HiL &/or Motor Testing.   

Testing includes MEA EV-RDS Four-Quadrant Operation/Braking together with unique dynamic capabilities using MEA-IDS Acceleration Dynamometer “worldwide patent solution”. 

The simulation includes Real-time simulation of Bus/driver – To accelerate / to brake / to change Bus states. Real-time simulation environment with full real-time capabilities.

Testing of development and production, as well as during in-field operation of the final products is addressed by MEA by means of a comprehensive solution portfolio for Research, Development & Certification (Durability & Reliability, Performance, Calibration & Optimization), Production (End Of Line, Quality Assurance), Field, InUse & In-Service.

Selected Capabilities:

  • Four-Quadrant Operation/Braking.
  • Drive Load Simulation with User-Defined Sequence.
  • “Hardware In Loop” communicates via CANBUS.
  • Four-Quadrant DC Power Supply.
  • Battery Simulation including SOC script and SOD script during advanced battery simulation and Simple battery simulation.
  •  Generator testing / Generator simulation. 
  • High Speed & High Torque EV testing (200kW motor @ 36000rpm)
  • MEA IDS: Unique Testing capabilities (Worldwide patent). 
  •  Battery Testing (Nested Loop, CC, CC-CV, CP, CR, CAP%, Last SOC, lAST CAP,  IEC 61960, Protection, etc..)

 

Selected Systems:

 

Patented Unique capabilities with MEA IDS  

  • Complete load testing without connecting the EV motor to any mechanical load.
  • Ripple Torque
  • Friction Torque
  • Friction Spectrum
  • Cogging Torque
  • Speed & Torque Spectrum
  • Back EMF
  • Dynamic and static data during motor acceleration.

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