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Project
Car Name: Turbulence
Car Number: 8
Project Time: 24 months
Team Size: 15 members
Testing Miles: 50 miles
Project Cost: $250,000
Dimensions
Length: 4.99 m (196.5 in)
Width: 1.79 m (70.5 in)
Height: 0.9 m (35.4 in)
Wheelbase: 2.29 m (90.0 in)
Front Track: 1.27 m (50.0 in)
Rear Track: Single rear wheel
Ground Clearance: 0.1 m (9.3 in) minimum at body
Weight: 233.6 kg (515 lb) without driver
Weight Distribution: 63 % front / 37 % rear
Aerodynamics
Vehicle shape: Integrated Canopy Design with Splined Array Shape and Rounded Wheel Fairings
Frontal Area: 1.01 m^2
Cd: estimated 0.125
Chassis
Structural Construction/Materials: Pre-fabricated Carbon Fiber/Aluminum Honeycomb composite sandwich boards, adhesively bonded with fiberglass and epoxy reinforcement. Welded steel tube roll cage structure adhesively bonded to frame.
Body Construction/Materials: Pre-preg Carbon Fiber/Polyurethane foam composite sandwich. Moldless construction using body plug to form inner foam sandwich.
Tires: Michelin 65/80, 85 psi
Wheels: Custom Machined Aluminum by Raytheon
Front Brakes: MCP hydraulic calipers on steel cross-drilled disc
Actuation Method: MCP hydraulic master cylinder and foot pedal
Rear Brake: Magura hydraulic rim brake on motor wheel
Actuation Method: Magura hydraulic hand lever actuated by front brake pedal
Front Suspension: Machined aluminum A-Arms and suspension upright, Yarnell air spring/shock.
Rear Suspension: Semi trailing A-arm design, geometry identical to front suspension, Yarnell air spring/shock.
Steering: Steering wheel, Yarnell rack and pinion, Ackermann steering geometry.
Drivetrain
Motor/Controller: New Generation Motors EV-C200-092 Controller, SC-M150 Brushless DC Motor
Power: Maximum power output of 6.4 kW (8.6 hp)
Efficiency: Maximum system efficiency of 94%
Controls: Separate pedals/potentiometers for throttle and regenerative braking
Data Telemetry
Battery Data: Brusa BCM400 Watt-Hour Meter
Speed Data: Garmin GPS Receiver
Batteries
Battery Type: Saft HE-41 Li-ion
# of Batteries: 27
Mass: 30 kg (66.1 lb)
Pack voltage: 94.5 volts nominal
W-hr capacity: 3.93 kW-hr
Solar Array
Solar Cell type: 550 RWE Schott monocrystalline silicon and 660 Emcore triple-junction GaAs
Active Solar Array area: 8 m^2
Construction/encapsulation technique:
736.5 solar cells in 5 series strings
Tefcel / Tedlar / EVA laminate modules adhesively bonded to body
Laminate construction by SunWise Solar
Normalized array output: 1200 watts
Measured array efficiency: 16% silicon, 23% GaAs
Maximum measured output: 1030 watts
Peak Power trackers: 5 Biel School MPPTnG A0401, Boost Type
Average Power Tracker Efficiency: 99%
Performance
Maximum Speed: 120.7 kph (75 mph)
Maximum Speed on Solar Power: 72.4 kph (45 mph)
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