Download January 15, 2008

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