1. TEAM 28 (S.P.O.C.) Solar Power Optimized Cart

2. TEAM MEMBERS  Cameron Boozarjomehri  Computer Engineer  Team Leader  Jacob Bitterman  Electrical Engineer  Hardware Lead (Leader of away team)  William Ellett  Computer Engineer  Software Lead (redshirt 1)  Zaza Soriano  Team Mentor  Consultant (Supreme Overlord)  Dr. Richie  Being a Swell Guy  Sponsor  Duke Energy

3. MOTIVATION  Desire to work with Solar Technology  Interested in transportation project  Environmental conservation interests  Have an excuse to drive a golf cart to and from campus

4. CURRENT METHODOLOGY (SEV) ►Solar Electric Vehicle ►Gas Power converted to Electric ►Cost: $25,000

5. CURRENT METHODOLOGY (TESLA SUPERCHARGER) ►Solar Power station for the model S ►Electric car using charge stations ►Cost: $62,400 (1,170 for Vehicle Dock) ►Super Charge station incorporate PV cells (Separate Assembly)

6. CURRENT METHODOLOGY (UCF ZENN) ►Zero Emission No Noise ►Electric Car modified with a PV array ►Cost: $15,995 (just car, no integrated PV hookup) ►Range of 35 Miles

7. GOALS  Electric vehicle  Powered solely by photovoltaic cells  Able to drive as long as possible given adequate sunlight  Able to charge while driving  Vehicle drive modes to control performance  Performance mode  Balanced mode  Eco mode  Clearly Demonstrate vehicle information to user  Battery life/longevity  Vehicle current mode  Charge time  Range

8. SPECIFICATIONS  Cart can reach top speeds in excess of 10 miles per hour  Considered normal for this model cart  Cart will have parallel charging circuits  Vehicle load capacity of 700lbs (including passengers and all components)  Charge from no energy in 6 hours during optimal sunlight exposure

9. SPECIFICATION CONT.  Rear panel adjustable with 80º of freedom to optimize solar energy collection  Optimization system that suggests best panel angle to within 5º  User Interface  Displays current drive mode (Performance, Balanced, Eco Boost)  Display current maximum range in miles +/- 1 mile  Display speed in mph to nearest 1/10 th of a mile  Display energy absorption rate in watts to nearest watt  Battery charge percentage accurate to nearest whole percent

10. GOALS/SPECIFICATIONS OF DRIVE MODE  All drive modes have emergency shutoff to protect cart components Drive ModePerformanceBalancedEco Boost TuningFavors SpeedBehaves NormallyFavors Range RequirementsCart is able to surpass factory restricted top speed Vehicle operates within standard factory settings Cart is able to surpass factory specified top range Performance TargetsCart can go in excess of 14 mph Cart can travel more than 25 miles between charges Cart travels as long as possible past 25 miles between charges Intended Design settings Vehicle uses both battery and solar panel output to maximize speed and acceleration Cart uses battery power only for normal cart function Combines Battery and Panels in parallel, while limiting speed/acceleration to maximize range

11. OVERALL BLOCK DIAGRAM Solar Panels Micro- Controller MPPT Bluetooth Governor /Motor Onboard Display Batteries

12. COMPONENT POSITIONING (SIDE) 7’ 9.5” 5’ 7.5” Solar Panels 5’ 4” Display Microcontroller Housing Battery Housing *Banana for Scale

13. COMPONENT POSITIONING (BACK) Microcontroller Housing 5’ 7.5” 3’ 11” 3’ 3” 5’ 4”

14. VEHICLE (GOLF CART) SpecsE-Z-GO Freedom-TXT 36 Volt Electric Golf Cart (2005) Energy SourceTrojan 105h 6Volt Deep Cycle wet battery (x6) DC Motor36-volt 4-hp@4400 rpm (can handle up to 48 volts) Projected Top Speed20mph Realistic top speed10mph Load Capacity800 pounds Price$1,600.00 after tax

15. PHOTOVOLTAIC OPTIMIZATION Solar Panels Micro- Controller MPPT Bluetooth Governor /Motor Onboard Display Batteries

16. SOLAR (PHOTOVOLTAIC) PANEL SpecsGrape Solar GS-S-390- TS 390-Watt Monocrystalline Solar Panel Grape Solar GS-S-250- Fab5 250-Watt Monocrystalline Solar Panel Power Film Solar Charger, RV-15-3900 60-Watt Rated Power390W250 Watts60 Watts Watts341 (PTC)222.1 (PTC)54.5 (PTC) Max Voltage49.4V31.7V15.4V Cell Efficiency15.2%15.4%10.6% Dimensions L x W x T 77.2” x 51.5” x 1.57”64.6” x 39” x 1.57”80.05” x 26.14” Flexible Price$969.00$374.99$1,382.00

17. MICROCONTROLLER SpecsMSP430G2xx 16 bit Microcontroller ATmega328 Operating Voltage1.8-3.6V1.8-5.5V Flash Memory56Kbytes32Kbytes I/O Pins14/2032 Operational Range-40 to 85C IDEMSP-EXP430G2Arduino IDE Price$12.50$12.84

18. MPPT SENSORS SpecsPhidgets RB-Phi-86 Precision Voltage Sensor AttoPilot Voltge/Current Sense Breakout – 45A (Added to PCB) Voltage max40V51.8V Current MaxN/A44.7A Current offset3.6mA ≈ 0 Easily added to PCB?noyes Dimensions L x W x T 19mm x 19mm x 4mm Approx. 19mm x 15mm x 4mm Price$19.00$19.95 (x2)

19. MPPT DESIGN DC-DC converter

20. COMPONENT POSITIONING (BATTERIES) Thermal Sensors 18 Volts per circuit

21. BATTERY SpecsSmart Battery 12V 40AH Lithium Ion Battery Kit Trojan Line Flooded Deep cycle 6V battery (Model T-105) Voltage12.8V6V Max Capacity80A-H225A-H Weight46.0lb62lb Dimensions L x H x W 7.75” x 6.87” x 6.50”10.375” x 7.125” x 10.875” Temperature Range-15 to 70 C-20 to 45 C Price$672.90$149.00

22. ADDITIONAL SENSORS TMP36 – Temperature SensorSEN-09088 Mini Photocell 2.7 to 5.5 V100mW Max Power 10 mV/C Sensitivity150V Max Voltage ±1 C at -40 to 125C (In battery operational range) -30 to 70C Responsive range Dimensions 5 x 4 x 3mm 13mm lead length Dimensions 2 x 4 x 5mm 31mm lead length $1.50 (x6)$1.50 (x2) 18mm 33mm

23. DRIVE CIRCUIT Solar Panels Micro- Controller MPPT Bluetooth Governor /Motor Onboard Display Batteries

24. DRIVE MODES Standard Mode Eco Boost Mode Performance Mode

25. DISPLAY Solar Panels Micro- Controller MPPT Bluetooth Governor /Motor Onboard Display Batteries

26. COMPONENT POSITIONING (DASH BOARD) B0 B1

27. USER DISPLAY SpecsAdafruit Blue Character OLED 16x2 Adafruit HDMI 4 Pi – 10.1” Display 1280x800 IPS – VGA/NTSC/PAL Resolution16 characters x 2 rows1280x800 pixels LightingLED Pixel-basedWhite LED backlight Required Voltage3/5V 5-12VDC Easily added to PCB?no Dimensions L x W x D 80mm x 36mm x 10mm Approx. 230mm x 150mm x 5mm Contrast ratio2000:1800:1 Price$27.95$144.95

28. USER DISPLAY Program start Display welcome page Drive Mode menu Range menu B0 Speed menu B0 Energy menu B0 Battery charge menu B0 Display current mode B0 B1 (change mode) B1 Display range B0 B1 Speedometer B0 B1 Display energy consumption B0 B1 B0 Display current battery levels B0 B1

29. PROJECT BUDGET ComponentBudgeted CostActual CostDifference Cart $1,999.00 $1,600.00+$399.00 Battery $0.00 PV Cells $433.95 2x $374.99-$316.03 Screen $149.95 $27.95+$122.00 Controller $91.89 $55.00+$36.89 Sensors, etc. $0.00$69.90-$69.90 Total: $2,674.79$2,502.83+$171.96

30. TIMELINE

31. STRETCH GOAL  Bluetooth Redundant Data Distribution from display Android application converts Metadata to useful displays  PV Optimization using GPS Phone GPS used to look up module determines cart orientation Cart heading relayed via Bluetooth Application suggests panel angle and cart heading based on time/position

32. DISTRIBUTION OF LABOR TaskJacob BittermanCameron Boozarjomehri William Ellett Battery Motor Connection XX Maximum Power Point Tracking XX Battery Charging Circuit XX Power Switching and Distribution XX Drive Mode Implementation X Microcontroller and Sensor Connections X Panel Positioning System (PPS) X User Interface XX

34. QUESTIONS?