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Integrated System Build & Test with Customer Demo

Table of Contents 1 Requirements 2 Testing 2.1 Assembly Status 2.2 Test Plans 3 Risk & Problem Tracking 3.1 BOM 3.2 Risk Management 3.2.1 Current Action Plans In Progress 3.3 Problem Tracking 4 Project Plan 4.1 Week 12 4.2 Week 13 4.3 Week 14 5 Documentation 5.1 Poster Progress 5.2 Paper Progress 6 Team Assessment

Requirements

See our updated Customer Requirements here.

See our updated Engineering Requirements here.

Testing

Assembly Status

Battery Pack Barrier Assembly Plan

Battery Panels Assembly Plan

Controller Heat Sink Assembly Plan

Fan and Vent Assembly Plan

Fan Wiring Assembly Plan

• 100% of assembly plans completed

Test Plans

We have decided to utilize Google Sheets for tracking of our test plans. This allows the document to be up-to-date at all times. Click here to view our Test Plans.

• 50% of test plans completed
• 50% of test plans in progress

Risk & Problem Tracking

BOM

View full excel file or PDF.

• 100% of materials have been ordered and received
• Total cost ~$980
• Still well under budget ($2000)

Risk Management

View full excel file or PDF.

Current Action Plans In Progress

• Durability Risk - Will monitor durability during and after competitive drive testing. Waiting on Hot Wheelz.

• Waterproofing Risk - Have added hydrophobic membrane to controller side covers since holes were added to pass finger probe test. Additionally are planning on tarp-like cover to go over battery box in the event of heavy rain. Waiting to test on rainy day!

• Failure of Cooling Risk - Unable to test light bulb model due to intense current draw (battery could not handle, nor could wires). Decided to wait until Hot Wheelz was ready to gather data. Set temperature settings very low to turn on fans and also to shut off system. Waiting on Hot Wheelz. Have backup plan if "problem areas" in battery pack are not cooling which involves different type of film for heat transfer. This material has been sourced and the issue has been discussed thoroughly with Hot Wheelz members so they understand what needs to change if temperatures are too high.

Problem Tracking

Team using Google Sheets for problem management tracking.

Project Plan

Our team has become very efficient in understanding what needs to be done. We have become a very cohesive team by learning how to listen to each other and understand where each other is coming from. We have run into many dead ends and hold ups as a team, but whenever those go away, we all rush to finish the task together. We may not have met our initial goals to finish early or to validate subsystems, but we have plans in place to allow Hot Wheelz to remain competitive at Formula Hybrid, all while battling with our last few weeks of senior year.

Week 12

• Rough draft of paper - Each team member has been assigned work for the paper. This will be finished by end of MSD Thursday, reviewed and submitted by the 5pm deadline.

• Validate waterproofing - If no rain this week, set up sprinkler or get some method to test all waterproofed areas.

• Validate cooling methods - Drive testing expected Wednesday evening pending weather. Should be able to get data then.

• Prepare all documentation & spare parts for Hot Wheelz competition

Week 13

• Finish up all test plans and documentation
• Final version of poster
• Final version of paper

Week 14

• GO TO COMPETITION!!!! :D

Documentation

Poster Progress

A rough draft of our poster can be seen here.

Paper Progress

A rough draft of our technical paper can be seen here.

Team Assessment

During this cycle, we learned the importance of having backup plans for all aspects of the project at the beginning. We did not anticipate the batteries taking so long to arrive to campus, which significantly pushed back our testing timeline. In order to ensure that our design would meet its expectations, we decided to create a test rig that would produce heat in place of the actual batteries. This last minute test plan has cost us over $200 and could have been better planned in the beginning to save material or find other ways to reduce costs. Additionally, we started to track our tasks in a spreadsheet so we could just come in and start working right away. This has improved our efficiency and allows us to quickly see what is holding up what other aspects of the project. We learned the importance of time management which will come in handy moving forward as we will have to increase our workload to accomplish all of our goals.

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