Torque (Nm)
1900 1400 900 400 -100
20 year supply of old trailers Industry slow to adopt Trailers a commodity Trailers not owned by fleet
RPM
Vehicle Centric - Lower cruise Power Cruise RPM 1100 Cruise Power 125 HP Max Cruise Power 350 HP Margin Power 225 HP Max Torque 2250 Nm Gradeability 2.00%
HHDDT Transient

© 2012 Eaton Corporation. All rights reserved. September 2012
10
NAFTA Class 6 Pickup & Delivery
2010 6.7L 230 hp / 580 lb.ft. / 26,000 lb.
FTP 72
© 2012 Eaton Corporation. All rights reserved. September 2012
11
Sources of FE variation among drivers
Aggressive speed control and gear selection are the main contributors Poor driving style against constraints (traffic flow, speed limit, etc.)
Baseline Boost EGR Axle Transmission Average eRPM Engine Fan 1/4 Mile Acceleration (sec) Fuel Economy (MPG) Twin Series Sequential FGT High-pressure loop 4.11 6-speed AMT 1575 On 40.1 5.30 Turbo-Super FGT + R900 Supercharger with Clutch Mid-pressure loop 4.11 6-speed AMT 1125 On 40.2 6.18 0.25% 16.6% 450rpm downspeeding Change
Torque (Nm)
1900 1400 900 400 -100 400 600 800 1000 1200 1400
225 HP 450 HP 225 HP 34 Tons
1600 1800 2000 2200
62 MPH 0% Grade 2%
RPM
Baseline Cruise RPM Cruise Power Max Cruise Power Margin Power Max Torque Gradeability
+ Faster shifts / power shifts Transmission Centric - Shift more often Cruise RPM 950 Cruise Power 225 HP Max Cruise Power 450 HP Margin Power 75 HP Max Torque 2250 Nm Gradeability 0.67%
Eaton Demonstration Vehicle 2011 Kenworth T800
© 2012 Eaton Corporation. All rights reserved. September 2012
9
NAFTA Class 8 Vocational
2010 13L 425 hp / 1450 lb.ft. / 57,000 lb.
Fuel economy : Downspeeding + Turbo Optimization Downspeeding with Supercharger-Turbocharger
Supercharger enables downspeeding while maintaining performance
Boost Response
Eaton Demonstration Vehicle
© 2012 Eaton Corporation. All rights reserved. September 2012
8
HD Diesel Supercharger
Fuel Economy and Performance Data
. . . within the context of the vehicle of the future.
. . . enabled by innovative transmissions. . .
6
© 2012 Eaton Corporation. All rights reserved.
6
Boosting and Transmissions
225 HP
+ Maintains speed-based shift points - Torque penalty on - Weight - Cylinder Pressure - Torsional Requirements - Requires increased Trans and clutch input torque
© 2012 Eaton Corporation. All rights reserved.
Cruise RPM traditionally set to maintain gradeability
1450 RPM allows full power and 2% grade at cruise
3400 2900 2400
Test data from T800
0-35 mph acceleration 2 repetitions of each case at Marshall track
450 rpm downspeeding
450 rpm downspeeding results:
Faster acceleration: 2.5% improvement Better fuel economy: 21% increase in MPG
Driver ID 21 27 Number of Trips 41 115 Avg. Trip Dist (miles) 417.2 417.6 Avg. Accel (m/s2) 2.73 2.18 Avg. Decel (m/s2) 0.62 0.44 % of Time at 100% throttle 85 60 Avg. Trip Time (hr) 8.11 7.96 Median MPG 5.98 6.58
1450 225 HP 450 HP 225 HP 2250 Nm 2.00%
© 2012 Eaton Corporation. All rights reserved.
2
2
Engine Centric Downspeeding Approach: Increase Torque
3400 2900 2400
© 2012 Eaton Corporation. All rights reserved.
4
4
Vehicle Centric Downspeeding Approach: Reduce Cruise Power
3400 2900 2400
+ Aero and tires reducing cruise power 225 HP + GPS / Terrain cruise control allows speed to float -100 HP + Fuel savings incremental to downspeeding 400 600 800 1000 1200 1400 1600 1800 2000 2200
Require engine Re-cal 3x shifts / mile Requires small gear steps Increased clutch wear
Torque (Nm)
1900 1400 900 400 -100
Max gradeabiltity 0.67%
RPM
Give-up some downspeed fuel savings (more time 1-gear down)
Torque (Nm)
1900 1400 900 400 -100 400 600 800 1000 1200 1400 1600 1800 2000 2200
RPM
Engine Centric - Raise Torque Cruise RPM 950 Cruise Power 225 HP Max Cruise Power 450 HP Margin Power 225 HP Max Torque 3400 Nm Gradeability 2.00%
A C C E L E R AT E
Powertrain Innovation for Stretched Fuel Economy and GHG Goals
Mihai Dorobantu Director, Vehicle Technologies and Innovation SAE Government – Industry Meeting, Washington, DC, January 31st 2013
Baseline Boost EGR Axle Transmission Average eRPM Engine Fan 1/4 Mile Acceleration (sec) Fuel Economy (MPG) Single VGT High-pressure loop 4.30 8LL AMT 1259 On 39.5 3.30 Turbo-Super FGT + R900 Supercharger with Clutch Mid-pressure loop 4.30 8LL AMT 1147 On 39.5 3.49 5.76% 112rpm downspeeding Change