GM-Allison Hybrid EPSystemTM

(2-Mode)

Allison’s Long Term Commitment to Transit (ships first V-Drive in October

1947)

0

200

400

600

800

1,000

1,200

1,400

1,600

2006 2007 2008 2009

889 EP40s

395 EP50s

1284 in 2009

EPSystemTM Hybrid Shipments

World’s largest HD Hybrid producer

• 3200 EPSystemTM Shipped as of today• 206 Manufactured and Shipped in one month (June 2009)

MICHIGAN

MICHIGAN

States with EP40/50s

EPSystemTM in 36 U.S. States

N.A. Availability: Gillig, New Flyer, MCI, Nova, NABI and Alexander Dennis

EPSystemTM Vocations (29’ to 80’)

Bus size EP Hardware EP Software29’ Same EP4035’ Same EP4040’ @ 280hp Same EP4040’ @ 330hp Same EP5060’- 80’ Artic Same EP5040’- 45’ Coach Same EP50

EPSystemTM Hybrid : 29’-80’ Bus

Energy Storage System 2 (ESS2)• Gen2.0 Panasonic cells (same as 2010 Toyota Prius)• Proven Nickel Metal Hydride cells• “Refresh Cell Kit” for mid-life maintanence (updates ESS to

ESS2 also)• 100,000,000 service miles achieved without a single end-

of-life cell failureDual Power Inverter Module 2 (DPIM2)• Added robustness• Fully interchangeable with prior DPIM

Gen 4 Controllers with 2010 Engines• Significantly more memory, expansion and fewer

connections• Controller hardware common with World

Transmission• 2010 EPA engines validated with Gen 4

ESS2

DPIM2

EVDriveTM Drive Unit• Proven 2-Mode Infinitely Variable Electric Drive• Has both a “series” and “parallel” hybrid path• Same system for 29-foot to 80-foot buses and

coaches

EP40TM and EP50TM Hybrid System’s Electrification • Validation , Durability and 2009 Death Valley Testing• 2010 Customer Field Testing• January 2011 introduction of

Smart Electrification

Smart Electrification

= 12 & 24 Volts DC

HV AC

HV DC

EVDriveTM Dual Power Inverter Module 2(DPIM2)

Vanner DC-DC Converter“Hybrid Beltless

Alternator”

Smart Electrification

12V/24V Electrical System Monitoring and Management

The HBA automatically adjusts output voltage to match the

state-of-charge of the low voltage batteries

• Improves low voltage battery life• Does not overcharge the low voltage batteries• Temperature Compensation• Communicates with MUX and Telemetry

systems• J-1939 CAN Bus communication• “Real-time” Fault Notification• Event Recording and Prognostics

EXPERIENCE POWER… EXPERIENCE VANNER.

Total System Power Management

ISO9001 / TS-16949 Certified

• Designed for GM-Allison EP-40 / EP-50

Hybrid System

• Eliminate the headache and cost of:

• Routine maintenance• Transient power spikes• Alternator safety concerns

• Full Production Launch - January 2011

• Next Generation (After Jan 2011 Launch)• 300A Output HVDC• Alternator & HVDC Combo System• Testing to start in mid-2010

High Voltage DC-DC Converter

“Hybrid Beltless Alternator” (HBA)

EXPERIENCE POWER… EXPERIENCE VANNER.ISO9001 / TS-16949 Certified

• Eliminates• Alternator• Regulator• Belts• Pulleys / Idlers

Built to perform in the transit drive cycle “sweet spot”

Power Output (Engine RPM) OEM Alternator W

OEM Alternator X

OEM Alternator Y

Vanner HBA

500 RPM (40% of transit drive cycle / 0-750 RPM) 125A 150A 125A 250A750 RPM (44% of transit drive cycle / 750-1000 RPM) 250A 375A 200A 250A1000 RPM (14% of transit drive cycle / 1500-2000 RPM) 300A 450A 250A 250A

EXPERIENCE POWER… EXPERIENCE VANNER.ISO9001 / TS-16949 Certified

More power output than 330A / 450A / 500A alternators from Curb Idle to 750RPM (40% of drive cycle)

25%-30% more efficient than alternator technology

Does not have to be over-sized for low RPM power output

Smart Electrification