2022

HT06 on the Endurance Track at Formula SAE 2022

HT06 Took Third Place Overall at the 2022 Competition

Engineering Summary

In 2022, HyTech Racing focused efforts on building an extremely lightweight and reliable vehicle with a low center of gravity and high lateral acceleration at all parts of the circuit. This was accomplished through an iterative design process focusing on high-level performance metrics and designing to the limit of each critical requirement.

HT06 features many design improvements over its predecessors. A novel battery pack cooling design strategy enabled HyTech's most energy-dense and tightly packaged accumulator ever. Advanced composite structural simulation techniques led to the development of a lighter, stiffer, and stronger aero package. A complete ergonomic study and experimentally driven design iteration gave our drivers a comfortable seating and steering position while seating the driver in the lowest possible position to even further improve acceleration performance.

Tuning HT06 took place during hundreds of hours of on-track testing to validate structural components, dial-in suspension setup, test launch control software, and validate onboard cooling systems. An adjustable anti-roll bar, configurable aero elements, and software control of powertrain parameters allowed for quick on-track adjustment of vehicle balance and handling.

Results

HT06 placed 3rd overall out of 55 teams in the 2022 FSAE Michigan Electric competition. The team also received 2nd in cost, 3rd in acceleration, 3rd in skidpad, and 4th in design.

HT06 Vehicle Details

General
  • Weight: 386 lb (175 kg) measured at Formula SAE
Chassis
  • Steel tube space frame
Suspension
  • Double unequal length wishbone
  • Ohlins TTX25 dampers
Powertrain
  • Chain sprocket reduction
  • Clutch type limited slip differential
Electric Drive
  • Motor: Emrax 207 Medium Voltage
  • Inverter: Rinehart CM200DZ
  • Battery: 84S1P LiCoO2 pack with 5.6 kWh energy capacity
  • Peak outputs: 80 kW
  • Peak torque: 160 Nm
Aero Package
  • 2 element front wing
  • 3 element rear wing
  • Coefficient of lift: -2.6
  • Coefficient of drag: 1.4
Electrical Controls
  • Low voltage controls: Teensy 4.0 Microcontrollers that run 6x faster than previous Microcontrollers
  • High voltage controls: New team-built precharge and discharge controls circuitry. Clean-sheet object oriented BMS management system embedded software
  • Data Acquisition: Created two new PCBs to interface with various sensors, revamped parser and live telemetry console.