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Vehicles and Fuels Low Emissions Choices For Fleets UC, CSU, CCC Sustainability Conference August Vehicles and Fuels Low Emissions Choices For Fleets UC, CSU, CCC Sustainability Conference August 1, 2008 Steve Hahn Materials Manager Santa Barbara Metropolitan Transit District

GM Allison Hybrid EPSystem. TM GM Allison Hybrid EPSystem. TM

Accumulative Hybrid Deliveries 2007 Accumulative Hybrid Deliveries 2007

GM-Allison Hybrid delivery distribution in North American transit buses Hamilton ON (12) St Catharine GM-Allison Hybrid delivery distribution in North American transit buses Hamilton ON (12) St Catharine ON (7) Ann Arbor MI (15) Ithaca (6) Saskatoon (4) Grand Rapids (5) Albany (11) Victoria (6) Vancouver (2)Edmonton (2) Madison WI (5) Philadelphia (32) Syracuse (9) Duluth (2) Cleveland (9) Buffalo (44) Pittsfield MA (1) Seattle (237) Minneapolis (22) Lansing (10) Lebanon PA (1) Pittsburgh (6) Spokane (3) Chicago (10) Brighton (2) Portland (2) Springfield (1) Eugene (11) Grand Rapids Hartford (2) Las Vegas (42) (2) Lafayette (4) Newark (4 coach) Eureka (2) Indianapolis (2) Salt Lake (3)Avon (1) Denver (4) Wilmington (2) Modesto (1) Baltimore (10) Livermore (1) Rockville (14) Bloomington (2) Stockton (32) Hampton Roads VA (10) Vail (1) Aspen (11) Evansville (5) Yosemite (18) Washington D. C. (50) Reno (2) Franklin TN (1) Humboldt (3) Lynchburg VA (2) Tulsa (1) Santa Barbara (8) Charlotte (2) Albuquerque (58) Austin (3) Norwalk (2) Chapel Hill (3) Flagstaff AZ (2) Orange County (2) ECU NC (1) Shreveport (1) Louisville (9) Covington KY (4) Tampa (4) Memphis TN (4) Houston (44) Sarasota (10) Ft. Lauderdale (5) Honolulu (50) San Juan (14) EESB January 2008 cgc 021808

64 Million Service Miles accumulated as of December 2007 64 Million Service Miles accumulated as of December 2007

Hybrid Benefits Noise Testing Aspen Colorado Whispr Mode was as quiet as passenger cars Hybrid Benefits Noise Testing Aspen Colorado Whispr Mode was as quiet as passenger cars in Aspen

“A” Motor/ Generator DPIM Two-Mode Compound Split Parallel Hybrid Architecture “B” Motor/ Generator Energy “A” Motor/ Generator DPIM Two-Mode Compound Split Parallel Hybrid Architecture “B” Motor/ Generator Energy Storage Nearly 100% Efficient Mechanical Path Over 90% Efficiency 70% of the time

EP Motor Architecture • Dual AC Induction Motors • Planetary Gearsets EP Motor Architecture • Dual AC Induction Motors • Planetary Gearsets

Series Hybrid Vs Parallel Losses Series Hybrid Allison Parallel Hybrid has less Energy Losses Series Hybrid Vs Parallel Losses Series Hybrid Allison Parallel Hybrid has less Energy Losses = Less Emissions, Fuel and Noise

System Controllers • Allison Transmission 1000/2400 Series™ controller – As used in 2008 Silverado System Controllers • Allison Transmission 1000/2400 Series™ controller – As used in 2008 Silverado – Mass: 6. 7 lb (3. 1 kg) total weight for 2 controllers

Allison Matsushita/Panasonic Ni. MH Energy Storage System Allison Matsushita/Panasonic Ni. MH Energy Storage System

Dual Power Inverter Module (DPIM) • One DPIM includes two inverters • 600 Volts Dual Power Inverter Module (DPIM) • One DPIM includes two inverters • 600 Volts nominal DC • Mass: 165 lb (75 kg)

Dual Power Inverter Module (DPIM) • 160 k. W continuous 3 phase AC output Dual Power Inverter Module (DPIM) • 160 k. W continuous 3 phase AC output • Simply cooled by EVDrive. TM cooling circuit • SAE J 1939 Control Communications

MTD Hybrid Statistics • 250, 000 miles recorded (8 buses are in service) • MTD Hybrid Statistics • 250, 000 miles recorded (8 buses are in service) • 14 -16 hour runs per day • 90% availability • 22% FE improvement • Exhaust temperatures averaging 400 C for regeneration of DPF’s • Exhaust backpressures averaging below 2” • 10000 mile between propulsion system road calls • Rear Brake change interval every 100, 000 miles • Front Brake change interval every 200, 000 miles

Fuel Economy Improvement Fuel Economy Improvement

Hybrid Benefits Improved Fuel Economy CBD-14 Fuel Economy Hybrid Benefits Improved Fuel Economy CBD-14 Fuel Economy

Hybrid Benefits Reduced Emissions Hybrid Benefits Reduced Emissions

Urban Bus Emissions (on CBD-14) CNG Diesel Urban Bus Emissions (on CBD-14) CNG Diesel

Thank you! Steve Hahn Materials Manager Santa Barbara MTD shahn@sbmtd. gov Thank you! Steve Hahn Materials Manager Santa Barbara MTD shahn@sbmtd. gov