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7/18/2019 Project Review RIT FSAE

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P07222: FSAE Engine Management

System For Electronic Fuel Injection

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

Sponsor: RIT FSAE TeamFaculty Advisor: Dr. Alan Nye



Project Description

• Fuel and ignition control module for 4-stroke gasolineengine.

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 o2 sensor Accurate to 0.1 AFR

Watertight, vibration proof, reliable and durable

Aluminum case with rubber dampners

Potted Sealed Connectors

Small and lightweightLess than 147mm x 105mm x 40mm

Less than 0.5kg

Data logging capability with run storage Ability to record past 20 minutes of sensor activity

Flexible I/O ConfigurationInputs: 8 Analog / 8 Digital

Outputs: 16 Digital



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 can cause engine malfunctions and even damage

• Damage to our components

• Overheating - the case is water-tight and sealed, but the componentswill generate 45W of heat

• Faulty Installation - a battery installed in reverse can destroy theelectronics



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 timeconstraints.

• 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 19th - PCB layout complete, and drawing package finalized, sensor input and processing routines begun

• March 26th - Electrical/Mechanical components and PCB ordered, startimplementation of output timer routines

• March 31st - Functional prototype assembled, fuel and ignition map control

added to program• April 2nd - Electrical hardware testing, serial communication (USB)

completed

• April 9th - Systems integration, thermal testing, GUI development resumes,design verification

• April 16th - Embedded application testing begins, if necessary designrevision

• May 7th - Website constructed, electrical data sheet composed, designpaper completed, poster fabricated

• May 18th - Project review



Any Questions?