Motor test benches play a vital role in the development and validation of an efficient solar car. These systems allow us to evaluate motor performance under a range of simulated conditions.
For our project, we are building a test bench using two electric motors coupled via their shafts. One motor acts as a load by applying variable braking torque—controlled through a DC supply—while the second serves as the motor under test.
Our primary challenge has been designing a reliable coupling mechanism that will be able to handle the high RPMs and torque loads expected during testing. Additionally, safety and durability are major concerns; we must protect against potential debris from mechanical failure, and ensure our motor controller and wiring remain shielded from damage.
To address these concerns, we are developing a plexiglass safety shield for the rotating components and a protective enclosure for the electronics. We plan to fabricate the motor coupling from metal for added strength. Following these guidelines, our prototype is currently in progress, and we expect to have a fully completed build by the end of the fall quarter.
