The purpose of this test was to ensure that the AEV could start and stop in front of the gate, wait for the gate to lift, and pass through the gate successfully.
Graphs:
Performance Test 1: Power vs. Time
Performance Test 1: Power vs. Distance
Analysis:
The performance test was successfully completed on the group’s second run. The first run failed due to the wrong number of Marks being used and the AEV coming up short of the gate. The marks error was corrected for the second test and was successfully completed. Looking at the graphs, Power vs. Time( Figure 7), and Distance vs. Time(Figure 8), which were taken from the performance test 1, it can be seen that the power braking technique was not energy efficient by the large spike in the graphs. The power braking technique used around 15.2 watts of energy to stop the AEV, which was the most energy used during the run. The AEV also had large spikes in energy usage when the AEV started for the second time which was reasonable since it had to overcome the static friction after stopping at the gate. A final take away from the performance test was that after the stop the AEV used 10.56 watts of energy when moving before the gate and only 9.74 watts after the stop. This difference in energy used can be explained by slower propeller speed used after the stop because the AEV no longer had to go up the incline. The team passed this perfectly, receiving a 20/20.
Code:
