Post on 25-Jan-2021
Problem Statement: FSAE Competition❖ International collegiate design competition in which student teams design,
manufacture and compete small Formula 1 style race cars.❖ Race cars to be manufactured with the best overall package of design,
construction, cost and performance.❖ 1000 possible points to be scored throughout Static and Dynamic Events
➢ Static Events: Design Presentation, Cost Presentation and Business presentation
➢ Dynamic Events: Acceleration, Skidpad, Autocross, Endurance, Efficiency
Our Competition: FSAE Electric 2021
Chassis: Design Validation
MIG welding to nodes on chassis
Weight load
RWR 2019-2020 Mission StatementThe 2019-2020 Rainbow Warrior Racing team will design and build, by May 2020, a simple and reliable prototype electric race car to serve as a foundational model for future RWR teams. The prototype shall strictly adhere to the Formula SAE Electric Rules with a performance focus on endurance capabilities.
Electric Powertrain Design Specifications❖ Motor: Emrax 228 134 hp (100kW) & 170 lbf∙ft (230 Nm)❖ Accumulator: 302V, 7.8 kWh, 72s12p ❖ Drivetrain: Drexler LSD, Rear Chain Drive ❖ Electronics: Rinehart PM100DX, Orion 2 BMS, Teensy 3.2
Microcontroller, Elcon Charger
University of Hawaii at Manoa
College of Engineering
Dept. of Mechanical Engineering
Advisor: Dr. Zachary Trimble
Torsional Rigidity
(Nm/deg)
Engine Bay Volume (ft^3)
Original (2019) 579.3 5.5
Modified (2020) 866.6 6
Percent Difference 49% 9%
Cooling System 2019 (IC) 2020 (EV)
Est. Powertrain Heat Generation 10 kW 8 kW
Heat Rejection (Theoretical/Tested) 10/12 kW 14/(?) kW
Manufacturing
Jig setup to weld A-arms
Suspension: Designing for Experiment
Electric powertrain packaged into space frame Accelerometer-arduino setup used in experiment
Top: Raw acceleration data collected from accelerometerBottom: Filtered data; used to compare to calculated lateral acceleration
Electric powertrain concept
Frame undergoing torsion test