Mechanical · Automotive (Powertrain)
Electric Vehicle (EV) Powertrain Design
Advanced 6 weeks 40-70 hours
Build a scaled EV powertrain: motor + controller + battery driving a small vehicle/dyno. Measure torque, current draw, and range. Compare efficiency at different loads.
Major
Mechanical
Focus area
Automotive (Powertrain)
Total hours
40-70 hours
What you'll need
- brushless BLDC motor with 30A ESC for RC drone
- LiPo battery pack 3S 11.1V for RC
- Arduino Mega 2560 R3 microcontroller board
- INA219 DC current voltage power monitor sensor module
- infrared IR optical tachometer RPM speed sensor module
- 4WD robot car chassis kit with motors wheels
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Steps
- Mount the brushless motor and ESC on the chassis with the LiPo battery, using a fireproof LiPo bag for charging.
- Add the current sensor and tachometer and wire them to the Arduino Mega.
- Program the Arduino to control throttle and log current, voltage, and RPM.
- Run tests at different speeds and loads and calculate efficiency.
- Estimate range from your measured energy use per distance.
- Chart efficiency vs. load and document the powertrain for your portfolio.
What to photograph for your portfolio
- Powertrain build
- torque/current curves
- range test
- efficiency comparison
Resume bullet starters
Copy one, then swap in your own numbers.
Designed and built an electric vehicle (ev) powertrain design using EV powertrain, motor control, battery management
Applied measurement to implement, test, and validate the system end-to-end
Quantified performance with [insert your result, such as accuracy, error reduction, response time, or load capacity] after iterative tuning
Skills you'll show off
EV powertrainmotor controlbattery managementmeasurement