Transcript Engine Group Update 02-16-10.ppt

Engine Team
Status Update
February 17, 2009
Jimmy Hresko
Mike Lin
Scott Kunz
Samihan Yedkar
Arianna Golden
Mike Velez
Costas Akrivoulis
Agenda
•
•
•
•
•
Engine
ECU
Cooling
Electrical
Engine Dyno
Current engine
• Honda f4i
•
•
•
•
599 cc
Compression ratio : 12:1
Production 2001-2006
Power in bike:
109hp (crank )
46 ft lb (crank)
@12500 rpm and
10000 rpm
Other options
• Suzuki GSX-R600 (599cc)
compression ratio 12.5:1 (04-07),12.8:1 (08-10)
power (crank): 125 hp @ 13,500rpm
• 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 power @ 12,250 (05), 12,700 (07), 14100 (09)
• Yamaha YZF-6R (599cc or 600cc before 06)
compression ratio 13.1:1 (10), 12.4:1 (01-05)
peak power @ 14,500 (06-10)
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:
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
• 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:
– http://www.megamanual.com/begintuning.htm
Solid introduction to how ICE’s work,
stoichiometric calculations/AFR, how to
generate good fuel maps, etc.
Cooling
Past + Present:
One radiator mounted under side
pod
Custom thermostat housing
F4i stock water pump
Single pass radiator
Future Concepts:
Different positions
Oil cooling
Double pass radiator
All aluminum tubing
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