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Innovative Vehicle Design Teacher Training Workshop Saturday, Sept 22, 2013

Innovative Vehicle Design Teacher Training Workshop Saturday, Sept 22, 2013. I gotta’ teach what…?. Schematics Basic Electronics Battery Safety and System Requirement Calculations Design Calculations - Gear Ratios, Tire Sizes, Motor V/RPM, Velocity & Acceleration

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Innovative Vehicle Design Teacher Training Workshop Saturday, Sept 22, 2013

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  1. Innovative Vehicle DesignTeacher Training WorkshopSaturday, Sept 22, 2013

  2. I gotta’ teach what…? • Schematics • Basic Electronics • Battery Safety and System Requirement Calculations • Design • Calculations - Gear Ratios, Tire Sizes, Motor V/RPM, Velocity & Acceleration • Processes – Drilling, Tapping, Filing, Cutting, Hand Tools & Safety • The Purchasing Process • Time-Line Softwares – What are the milestones, when is it due, who’s responsible…Oh Boy!

  3. Where do I find all that stuff? • Remember…This is an educational and fun experience. • Use the internet! • Mentors are Great! • Build that Bridge! • Students are wonderful researchers! Pair em’ up and watch em’ go!

  4. Use the Math U know! • Pick a common bike tire size in Dia “ • 16”…what is circumference? Pi x D • How far around the tire? • How long is a mile? • How many times does the tire have to rotate to travel a mile? • If your top speed desired is 30 mph, how many revolutions does the tire have to turn to cover 30 miles in 60 mins? • How many rpm’s should your tire turn???

  5. What gear ratio do we use? • Gear Ratio will be dependant on your tire rpm… • You’ve already selected a motor…what’s its rpm at 80%? • Does your tire turn faster or slower than the motor?

  6. More ratio #’s…  • For talking purposes… the motor peaks at 3000 rpms at 24 volts. • 80% of that is 2400 rpms • Let’s say your tire rpm needs to be 740 • Divide your motor rpm by the tire rpm • 2400/740= 3.24 to every time your tire turns 1 revolution…so 3.24 : 1 is your ratio!

  7. Let’s pick the sprockets! • Remember your ratio of 3.24 to 1 • If your motor shaft is ¾ -1”, you can get 13 teeth around it easily, so let’s take a 13 tooth sprocket. • 13 x 3.24 = 42.12 or 42 tooth sprocket for your axle…based on your numbers your sprocket set is a 13 and 42…let’s get em’ and try it!

  8. When we’re all done calculating…

  9. Motor Size • Lots of Internet HP calculators! • Pick a weight for your vehicle, decide on your top speed ( less than 35mph) • Give a time to reach that top speed and the calcs will give you the HP required to make it happen! • Go Shopping!

  10. What should this look like? • Many free design packages out there. • ProDesk Top is one, easy to use and free, comes with tutorials. • Many schools have SolidWorks. • Design centers around??? • Aerodynamics!!! Lightweight!!!

  11. What does “Innovative” mean? • To Introduce a new idea • To use an existing product in a totally new way

  12. Have your student purchase items… • They all spend money! • How is it done with a company’s $? • Invite a “bean counter” to guest speak in class! • Let students make the calls, get quotes, and write the purchase reqs!

  13. What’s Incoming Rc’vng Inspection? • Every Automotive company conducts it! • Is what I recv’d, what I ordered? • Sign off and then accounting gets the packing slip and BOL, why? • That’s the Purchasing Loop! • We get our stuff and everyone gets the $$$!

  14. IVD Guidelines Questions?

  15. What can we expect at MIS? • A great experience!!! • Bring 2 chaperones… • Have your MIS release forms signed and ready to give to the gate attendant. • Bring signed photo releases and a completed Project Synopsis form • Pick your pit stall and unload.

  16. MIS Inspections • Inspections • Driver weigh-in with dry ballast 150 # min • 30 degree Tilt test • Brake lane test - 25 mph stop in 40 feet • Helmet Regulations check – height, DOT • Overall Inspection • You will rec’v an official checklist for your own preliminary inspection at your sight

  17. MIS Events • Your team will compete on one of four figure 8 test tracks for 30 minutes to test the durability of your steering, brakes and chassis structure. • All teams will be on the “Big Oval” at 12 o’clock noon for the “Big Event”. This will be a one hour energy management event.

  18. Trophy Time! • Drum rolls, Please! After the events are completed, the judging is tallied and voted on by the SquareOne Board… It’s’ Trophy Time! • Pictures and applause are encouraged! • We should be out by 2:30 – 3:00 p.m.

  19. Questions?

  20. What Now? • Next Steps (Refer to Appendix) • Assemble a team of students and volunteers • Get kids excited and find some big ideas • Assemble Gas Kart and Test • Acceleration Rate, Top Speed, Range, Others…? • Install Electric Drive and Re-Test • Start Innovating • Have fun! • Ask when you need to!!! WE’re all here for each other success! Remember, it’s all about kids!

  21. Their Story!

  22. Thanks SquareOne!!!

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