FSAE Instrumentation 11/18/08 Ryan Gunn John Lee Dan Van Winkle Ali Yilmaz

Requirements Data Acquisition Shock Position Steering Position Wheel Speed Oil & Brake Pressure Real-Time Transmission Data Logging GUI

System Diagram

Environmental System Requirements Withstand normal operating conditions Electro-magnetic Interference Water Exposure Vibration Temperature Weight - <20 lbs Size (10”x12”x5” last year’s car)

Data Acquisition Alternatives RacePak MoTeC NI cRIO

Real-Time Communication Alternatives WiFi IEEE Custom Frequency RF communication

Wi-Fi Data Transmission in Racing First Application 2005 Pro Racing Leagues NASCAR Indy Pro Series IRL Formula SAE Teams University of Cincinnati Carnegie Melon University

Sensor Selection Shock Position Sensor The Novotechnik 2841 S ° measurement range 1% linearity P2800_E.pdf Accelerometer Analog Devices ADXL g Low power (300 mV) sensors/imems- accelerometers/adxl330/products/product.html

Sensor Selection Wheel Speed Sensor Automation Direct PD1-AN-1A 5000 Hz maximum frequency At 100mph, the wheel spins at 60rpm Oil Pressure Sensor Omega PX32B1 Pressure Transducer psi operating range Steering Position Sensor Novotechnik SP2801 A ° operating range

Optional Requirements Improved Battery Exhaust Temperature Oil Temperature

Power Consumption cRIO-20W Accelerometer 180 μA mW Oil Pressure - 40mW Brake Pressure – 25mW Rotary Potentiometer – 0.7mW Proximity Sensor – 200mW

Comparing Batteries Current Battery ODYSS PC310 Drycell 2.87 AH/kg Possible Alternatives Li Ion 11.4 AH/kg Somewhat volatile

Future Tasks Verification and Testing Hardware Software