Battery Systems for Research Prototype

Blizz Primatist

Key project requirements

|   18650 Cylindrical cells
|   Custom 35 kWh battery pack
|   System energy density above 200 Wh/kg

Podium Advanced Technologies has designed the Blizz Primatist and all its components: from batteries and electronics to chassis, body structure, aerodynamics, and propulsion.

Blizz Primatist is a full electric vehicle powered by a 204 hp electric motor, fueled by a Li-Ion 35 kWh custom battery pack. One of the main challenges for Podium has been the identification and characterization of Lithium cells with the highest specific energy, that could allow to limit the weight of the 35 kWh battery pack below 180 kg, given a total vehicle weight target below 500 kg, and tuning our BMS to let them perform at their fullest potential.

Designing a vehicle that could be homologated by FIA was another tremendous challenge, that required fitting on this “small” vehicle a number of safety features, starting from the ones needed on a car powered by a 800 V full electric powertrain.

Battery Management System Hardware features

  • Scalable: decentralized architecture BMS and several CSCs
  • Voltage level: 400V and up to >800V
  • Safety
  • Double μC with redundant communication (digital fault lines for OV, UV, OT)
  • Insulation monitoring unit
  • Crash detection, interlock signal, liquid leak detection
  • Interfaces
  • 2x CAN Bus
  • Low voltage interfaces
  • Analog and digital I/O’s
  • Channels for contactors and relays control
  • 2x Analog Current sensor interfaces
  • 4x HV measurement channels
  • Min 6 to max 16 cells voltage measurement per CSC
  • Max 8 temperature sensors per CSC

Battery Management System Software features

  • Cell limits monitoring
  • Power prediction (SoP)
  • SoC and SOH Evaluation
  • Balancing control
  • Contactor Control
  • Thermal Management Control
  • Data Logging
  • Operating Mode Control
  • Start-up and pre-charge
  • Driving
  • Charging
  • Shut down and discharge
  • Charger (AC & DC) Interfaces

Fill the form and upload your CV