FSAE Cooling Testing and Pump Selection
For the 2023-24 academic year, I led the electric drivetrain cooling management and optimization for the Cal Poly Racing CP24E vehicle. I analyzed the cooling requirements of drivetrain components, constructed a system curve for the previous year's cooling loop, and sourced a new pump that best fit the updated system design while reducing weight by 35%. I also developed a testing plan to measure the head loss within the cooling loop and applied system curve "k" constants to account for the head loss contributions of individual components, enabling precise adjustments to the overall system curve. Final System Curve I began this process by evaluating the cooling requirements for the critical components of the electric drivetrain (the motor and the motor controller): Motor Specifications Model Emrax 228 Cooling Type Liquid (Water) Minimum Coolant Flow Rate 8 L/min Max Coolant Temperature 50℃ Max Allowable Motor Temperature 120℃ Max Motor Temperature Experienced 60℃ Motor Con...
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