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BATTERY PERFORMANCE METER FOR ELECTRIC PROPULSION SYSTEMS Team Members: Ryan Bickham, Dennis Blosser Cody Dinkins, Todd Dutton, Rachel Shively Project Sponsor: Patrick Taylor, Ph.D., AMRDEC January 15, 2008 Received Parts • Airframe – Parkzone F-27C Stryker – Wing Span: 37 in – Overall Length: 27 in – Flying Speed : 80 mph or more Received Parts • Motor – Parkzone Brushless Motor – Part # PKZ4216 – High power, direct drive, 6-pole 1880 Kv – 2.5 mm diameter shaft Received Parts • Electronic Speed Controller – E-flite 25 Amp Pro Brushless ESC – Powered by a 3S Li-Po battery – Max burst current: 30 Amp (15 sec) – Battery Input Leads: 16 AWG, E-flite EC3 – Motor Output Leads: 16 AWG, 3.5mm female gold bullet connectors Received Parts • Battery – Parkzone 2200 mA-h 3S LiPo battery – Part # PKZ1030 – Voltage: 11.1 V – E-Flite EC3 connection – Weight: 5.6 oz Received Parts • Servo Tester – Astro Servo Tester PN 105 – Servo signal adjusts between low and high throttle (1ms and 2 ms) – Places a test load of 500 mA on BEC circuit System Diagram – Device Under Test Battery Under Test 4-cell NiCd receiver battery Speed Controller Servo Tester Motor Device Under Test RECENT DEVELOPMENTS Mechanical: •Received airframe and parts for motor setup •Requested fabrication of parts for cooling system Electrical: • All three auditing FPGA course • Decided to use same type of FPGA for project as in class • Programming in VHDL NEXT STEPS Electrical: • Ordering: • Procurement list for Dr. Taylor needed by Friday • Specific FPGA • Interconnects • A/D Converter •Shunt resistors and basic circuitry • Small LCD Monitor & VGA Cables? • User input panel? •Brands? • Learning language & use NEXT STEPS Mechanical: • Procurement list for Dr. Taylor needed by Friday • 4-cell NiCd receiver battery • Chargers for both NiCd and LiPo batteries • Socket headed cap screws • Computational method for drag and lift curves for airframe • Use calculated aeronautical data to find power characteristics for testing