Team K Deliverables

Why Dreese Data Systems? 

 

Over the course of nine rigorous weeks, Group K has worked along side the other groups of Dreese Data Systems to create the most efficient and functioning vehicle for your transportation. 

The vehicle is very accurately ran. 

By using absolute positioning, the AEV stops and begins perfetly on command. This is a higher quality than a vehicle ran based off of time and power.

The propellers running will always be the most efficient. 

In testing, it was found that the bigger sized propellers ran the vehicle further with less power. These propellers are the ones used in our design, and run with less power and cost.

Battery power will be at it’s highest, getting you from point A to point B as quickly as possible.

The Group tested how much battery power is lost in each run, so we will be very aware of when batteries need to be changed and powered. This will make the vehicle always running at its peak.

Slick, aerodynamic design. 

The design of the AEV has been hand designed for style, comfort, and aerodynamics.

 

 

 


 

 Results of Methodology Testing:

 

Results for Methodology 1:

 

From the data, it is to note that there is a definite decline in average voltage the more you run the AEV. This result was expected as the more you use the battery, the less charge the battery will have. There are still important takeaways from this lab however. The main one being that the more you run the AEV using the motorSpeed() function, the less distance the AEV will travel because the battery will not be able to provide as much power in continuous runs. Fortunately, even after eight runs the average voltage only dropped about 0.0434 Volts, meaning this affect is minimal.

 

Results for Methodology 2:

 

 

 

Orientation 1 and 2 were the smaller propellers and Orientation 3 and 4 were the bigger propellers. From the lab we found that the smaller propellers simply do not provide in thrust and using them will generate little distance no matter the orientation, making them unusable. The bigger propeller are much more powerful when running the AEV the orientation the propellers are in actually does matter, meaning in order to be the most efficient, it is ideal to use the big propellers in Orientation 4. Knowing this, we are going to be able to use the most proficient propellers in the most proficient orientation, greatly improving the usability of our AEV. The figure below showcases the propellers in orientation 4.

 

 

Results for Methodology 3:

In the advanced R&D 3 lab, we studied if the power needed to use a servo motor braking system made a sizable impact on the energy needed to move the AEV. Through the experimenting process, we discovered how precise the AEV can travel while using a braking system and surely this would out weigh any size able amount of power needed to be transferred to the servo in order to stop the vehicle. In fact, on average the servo only needed to take around 3.5 watts for about a 1/3rd of a second for both servo calls in the program. In conclusion, the servo motor only uses a small amount of power and what ever compilation that brings up would be heavily outweighed by the fact that the vehicle can now complete it’s performance tests with precision.

 

 

 


Total Cost:

In the final design, despite the fact that vehicle excluded any custom made parts, the total estimated cost was greater than what was predicted. The figure below shows how the final cost is calculated. 

 

The next figure is a total cost from the use of the parts on the AEV. Due to the fact that little parts were used in the first place and that there was not a use of custom printed parts, the total cost for parts was relatively low.

 

 

Despite the fact that we did not use custom made parts, we came in over budget. This is due to accuracy penalties during our final performance test where the AEV would come to a hard stop when it returns back to the depot. We were penalized large amounts of dollars for these errors and subsequently, made us around $100,000 over budget.