Engine Team Status Update February 17, 2009 Jimmy HreskoMike Lin Scott KunzSamihan Yedkar Arianna GoldenMike Velez Costas Akrivoulis

Agenda Engine ECU Cooling Electrical Engine Dyno

Current engine Honda f4i 599 cc Compression ratio : 12:1 Production Power in bike: 109hp (crank ) 46 ft lb rpm and rpm

Other options Suzuki GSX-R600 (599cc) compression ratio 12.5:1 (04-07),12.8:1 (08-10) power (crank): ,500rpm Honda CBR 600RR (599cc) compression ratio 12:1 (03-06), 12.2:1 (07-10) Kawasaki Ninja ZX-6R (599cc) compression ratio 13.3:1 (03-10), 13.9:1 (08) peak 12,250 (05), 12,700 (07), (09) Yamaha YZF-6R (599cc or 600cc before 06) compression ratio 13.1:1 (10), 12.4:1 (01-05) peak 14,500 (06-10)

IN: Voltage Sensors: Throttle Position Sensor Manifold Absolute Pressure Sensor Mass Air-Flow Sensor Gear Position Temperature Sensors Air Temperature Sensor Coolant Temperature Sensor Engine Temperature Lambda Sensor (Wideband/Narrowband) Ref and Sync Trigger OUT: Fuel Injector Drivers: Ignition Drivers Shift Lights Tachometre Signal Fan Control Engine Control Unit What is an ECU: –Electronic device charged with determining the exact amount of fuel, ignition timing, etc. required to smoothly operate an ICE. Functionalities: –Fuel Injection Determining the appropriate A/F ratio based on throttle position, RPM, MAP –Ignition Timing Adjusting ignition timing for ideal power delivery/fuel efficiency/engine smoothness I/O:

Engine Control Unit Different ECUs, Different Functionalities: –What is the best ECU for our team? –What can different ECU’s do/What are the benefits/downsides of popular ECU’s used by other FSAE teams? –Research currently ongoing –Currently considering (for academic purposes): Performance Electronics-ECU1 Megasquirt II, V3.0 Board MoTeC M4

Tuning Theory Basic Tuning Theory Knowledge from here: – Solid introduction to how ICE’s work, stoichiometric calculations/AFR, how to generate good fuel maps, etc.

Cooling Future Concepts:  Different positions  Oil cooling  Double pass radiator  All aluminum tubing Past + Present:  One radiator mounted under side pod  Custom thermostat housing  F4i stock water pump  Single pass radiator

Engine Electrical Goals: –Have finished (real) electrical diagram by end of week –Rewire a previous racecar (CMR79) by spring break –While rewiring CMR79, develop and document the process of rewiring, and compile a list of components as a full electrical inventory of the racecar

Cockpit Electronics

ECU Electronics