Final Vehicle Testing

For the final Vehicle testing, group F was focused on small optimizations on the AEV and in there code to make their vehicle more energy efficient. The AEV was to run the full track, connect to a load, then travel back to the start stopping the in the docking sation.

This is the code for Final Vehicle Testing. If needed, the Function Glossary can be seen here: Glossary

Code Comment
celerate(4,0,25,4); Accelerate all motors from start to 25% in 4 seconds
motorSpeed(4,28); All motors at 28%
goToAbsolutePosition(239); Go to position 239 marks
brake(4); Brake all motors
goToAbsolutePosition(292); Go to position 292 marks
rotateServo(90); Rotate servo 90 degrees
goFor(8); Go for 8 seconds
rotateServo(-90); Rotate servo -90 degrees
motorSpeed(4,28); All motors at 28%
goToAbsolutePosition(386); Go to position 386 marks
brake(4); Brake all motors
goToAbsolutePosition(648); Go to position 648 marks
rotateServo(90); Rotate servo 90 degrees
goFor(2); Go for 2 seconds
rotateServo(-90); Rotate servo -90 degrees
motorSpeed(4,20); All motors at 20%
goFor(0.5); Go for 0.5 seconds
brake(4); Brake all motors
goFor(6); Go for 6 seconds
rotateServo(-90); Rotate servo -90 degrees
reverse(4); Reverse all motors
motorSpeed(4,40); All motors at 40%
goToAbsolutePosition(430); Go to position 430 marks
brake(4); Brake all motors
goToAbsolutePosition(392); Go to position 392 marks
rotateServo(90); Rotate servo 90 degrees
goFor(8); Go for 8 seconds
rotateServo(-90); Rotate servo -90 degrees
motorSpeed(4,40); All motors at 40%
goToAbsolutePosition(295); Go to position 295 marks
brake(4); Brake all motors
goToAbsolutePosition(80); Go to position 80 marks
rotateServo(90); Rotate servo 90 degrees

Below are the results of three test runs for the final vehicle test. These results were very consistent with each-other and proved that group F’s AEV was very reliable and controlled.

  Trail 1  Trials 2  Average 
Time  59.00  60.00  59.50 
Energy  207.52  205.58  206.55 

Because of the energy usage, group F ended up over budget by $22,000. This cost could be blamed on the AEV code itself but in the end it can be concluded that the design was not optimized to it’s best capabilities. Group F’s final AEV design can be seen below. This design is very similar to the AEV when it start testing. Some notable differences are the servo attached after brake testing, the propellers facing the forward direction after configuration testing, and the t-base after performance testing 1.

A major drawback of group f’s AEV was the fact it used too much power to complete the scenario. Looking forward the problem would be solved by taking a look at the weight, design, and form of movement the AEV has and figuring out how they can be modified to decrease the energy efficiency.