I’m considering building a motor efficiency dyno for my Final Year Project at uni as a way to parameterise off the shelf motors for our Eco Marathon team.
Plan is to use these parameters in a SIMULINK model to predict competition performance and drive car development.
My initial plan is to use two motors.
One to be tested/parameterised (torque control) & one acting as a brake/torque load (likely velocity control). This will allow me to sweep through the range of torques/speeds to capture the entire efficiency map.
My question is, how mature is the regen braking? I will need to be sinking all the output motor power (~600W peak).
Ideally, this would be fed back to the other motor, reducing power supply consumption.
If I need a braking resistor, am I right to assume I need one capable of sinking 600W?
Love to know your thoughts.