P 07222 FSAE Engine Management System For Electronic

P 07222: FSAE Engine Management System For Electronic Fuel Injection Sponsor: RIT FSAE Team Faculty Advisor: Dr. Alan Nye Member Role Erich Fiederlein Team Leader / Heat Transfer Analysis Andrew Bloom Programming Brandon Mancini Vibration Analysis Greg Doelger IC Engine Analysis / 3 -D Modeling Kenvin Tung Digital Design / Embedded System Brad Greene Hardware Design

Project Description • Fuel and ignition control module for 4 -stroke gasoline engine. Customer Needs Engineering Specs Easy to tune and adjust User definable and intuitive interface Programmable from a laptop Cross platform, Zero configuration, USB interface Built in wideband o 2 sensor Accurate to 0. 1 AFR Watertight, vibration proof, reliable and durable Aluminum case with rubber dampners Potted Sealed Connectors Small and lightweight Less than 147 mm x 105 mm x 40 mm Less than 0. 5 kg Data logging capability with run storage Ability to record past 20 minutes of sensor activity Flexible I/O Configuration Inputs: 8 Analog / 8 Digital Outputs: 16 Digital

Design Concept

Design Concept

Design Concept

Risk Assessment • Damage to customer’s components • Sensors • Oxygen Sensor - Improper heater control circuitry • Fuel Injectors - Running over 80% duty cycle will cause failure • Engine • Timing Inaccuracies - propagation delays in firing fuel injectors or ignition cause engine malfunctions and even damage • Damage to our components • Overheating - the case is water-tight and sealed, but the components will generate 45 W of heat • Faulty Installation - a battery installed in reverse can destroy the electronics

Proposed Mitigation • Damage to customer’s components • Sensors • Computer simulations and substantial bench testing • Engine • Real time monitoring of outputs in the laboratory • Damage to our components • Overheating • Thermal analysis used in case development • Monitor temperatures during extended test runs • Faulty Installation • Over Voltage and Battery Protection circuitry

Current State of Design • Design meets all customer needs except • Auto tune, Wireless Telemetry, Knock Sensor, Integrated Display, Traction Control are all out of the scope of this project due to time constraints. • Design meets all engineering specifications • Still on track for proposed budget of $1200 • Budget COG (each) - $400 • Actual COG (each) - $362 • Mitigation • The system contains extra I/O and processing power to allow future expandability

Project Schedule Milestones • March 19 th - PCB layout complete, and drawing package finalized, sensor input and processing routines begun • March 26 th - Electrical/Mechanical components and PCB ordered, start implementation of output timer routines • March 31 st - Functional prototype assembled, fuel and ignition map control added to program • April 2 nd - Electrical hardware testing, serial communication (USB) completed • April 9 th - Systems integration, thermal testing, GUI development resumes, design verification • April 16 th - Embedded application testing begins, if necessary design revision • May 7 th - Website constructed, electrical data sheet composed, design paper completed, poster fabricated • May 18 th - Project review

Any Questions?