Hybrid and Electric Powertrain

Techrules Ren

Key project requirements

|   Sport PHEV application
|   50C Maximum discharge rate
|   70% Cell to pack weight ratio
|   Pack energy density exceeding 126Wh/kg

Podium Advanced Technologies has designed the innovative four motors and turbine range extender architecture and the battery pack of Ren, the first vehicle from the China-based automotive research and development company Techrules.

The Ren, which made its debut at the 2017 Geneva Motor Show with an innovative design style signed by Fabrizio and Giorgetto Giugiaro, is the world’s first electric production supercar to feature the Techrules-developed Turbine-Recharging Electric Vehicle (TREV) system. The series hybrid powertrain technology delivers high levels of efficiency and performance, and an ultra-low environmental impact.

A variety of configurations will be available to tailor the powertrain to the exact requirements of the customer. The flagship version – with a battery capacity of 25 kWh and with two motors at the front and four at the rear – delivers maximum power of 960kW with a range of 1,170 km from 80 litres of diesel fuel (NEDC).

The drivetrain comprises two, four or six axial flux, liquid-cooled electric motors manufactured by YASA in the UK. 
The rear-wheel-drive two-motor configuration will see a motor driving each rear wheel. A four-motor set-up will drive all four wheels. The highest-power six-motor configuration has two motors for each rear wheel, and one for each front wheel.

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

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