This document summarizes GM's electric vehicle technologies including eAssist, the Chevrolet Volt extended-range electric vehicle, the all-electric Chevrolet Spark EV, and hydrogen fuel cell vehicles. It describes GM's light electrification system eAssist which improves fuel economy up to 25% and is standard on the Buick LaCrosse. It also outlines the powertrain components and fuel saving features of the Chevrolet Volt and discusses its 35 mile all-electric range and 344 mile extended gas-powered range. Finally, it briefly mentions GM's work on the Cadillac ELR luxury coupe and its fuel cell vehicle evaluations through Project Driveway and a collaboration in Hawaii.

1. Rich Gunther
District Manager Commercial, Government &
Alternative Fuels

2. GM eAssist Technology
• Buick – “You don’t keep running when you are stopped, so why
should your car’s engine?”
• Light-electrification system
– Standard on Buick LaCrosse and offered on Buick Regal
– 25 mpg city/36 mpg highway
• 2013 Malibu Eco
– Expected to achieve
25 mpg city/37 mpg highway
– 25% better fuel economy than traditional
powertrain system

3. eAssist Components
• The system starts with a 2.4L Ecotec 4-cylinder engine and a
next-gen 6-speed automatic transmission
– Adds an electric motor-generator (15kW)
– Adds 115V lithium-ion battery
• This combination stores energy and saves fuel

4. eAssist Fuel Saving Features
• Improvement in fuel economy comes from these powertrain
energy saving features:
– Engine off at idle
– Extended fuel cutoff
on decelerations
– Regenerative braking
– Electric boosting
– Intelligent
charging/discharging
of the lithium-ion battery
• Additional vehicle energy savings comes from:
– Efficient tires
– Under body aerodynamic panels
– Front-end active airflow management

5. Electric Vehicles Changing Industry
• Today is the start of a revolution in the auto industry
– For 100 years, vehicles have been mechanically-driven
and petroleum-fueled
– Moving to vehicles that are driven and fueled by electricity
• This kind of revolution changes societies

6. Volt Reinventing the Automobile’s DNA
• In a class by itself — first mass-produced Extended Range Electric
2011

7. How Volt Works
• Combines a high-voltage lithium-ion battery pack
with an advanced electric drive unit
• Electric Mode — Volt can drive initially on electricity for a
range of 35 miles*
• Extended Range Mode — Gas-powered generator turns on and
produces electric energy for approximately 344 additional miles of
driving range
*EPA estimated 35 miles initial range based on 93 MPGe (electric);
actual range varies with conditions

8. How Volt Works
• Combines a high-voltage lithium-ion battery pack
with an advanced electric drive unit
• Electric Mode — Volt can drive initially on electricity for a
range of 35 miles*
• Extended Range Mode — Gas-powered generator turns on and
produces electric energy for approximately 344 additional miles of
driving range
*EPA estimated 35 miles initial range based on 93 MPGe (electric);
actual range varies with conditions

9. Volt Performance
• The Volt proves electric driving can be spirited
– Top Speed — 100 mph
– Torque — 273 lb.-ft.
– 0-60 mph in less than 9.0 seconds
– Quarter mile in less than 17 seconds

10. Volt Battery is Very Efficient
• Uses less energy per year
than average household
refrigerator and freezer
• Recharge for less
than a cup of coffee (approx. $1.50 per day)
Compared to Gasoline
• Volt driver would • In contrast, at
pay less than $3 to $4 a gallon,
3¢ per mile a conventional
of electric driving, vs. vehicle would
less if charged cost between
during 10¢ and 13¢
off-peak hours per mile

11. Expanding EREV Technology
• Cadillac Converj concept to become production car called
Cadillac ELR
– Luxury touring coupe with extended-range electric vehicle
technology
• The modern vision of the personal luxury 2+2

12. 2013 Chevrolet Spark EV
• Spark EV all-electric vehicle will be sold in select U.S. and global
markets in 2013
– Offers an all-electric option to customers with predictable
driving patterns
• advanced nanophosphate lithium-ion battery packs

13. Hydrogen Fuel Cell Vehicles
• Fuel cells are right choice for customers who need:
– More passenger and cargo-carrying capability
– Ability to travel longer distances at highway speeds
– Great performance and fuel economy
– Rapid re-fueling

14. Benefits of Hydrogen Fuel Cells
• Zero petroleum
• Zero greenhouse gas emissions
• Zero tailpipe emissions
• Triple the range of electric vehicles
• No overnight charging

15. GM’s Fuel Cell System
• Compared to an internal combustion engine, this system:
– Is more than twice as efficient
– Promises equivalent durability, range (300 miles)
and performance
– Has 60% fewer part numbers
– 90% fewer moving parts
– And offers similar
refueling time (~3 minutes)

16. Fuel Cell System Configuration
• Packaged in space of a traditional 4-cylinder engine
• Hydrogen storage system and high voltage battery placed for
maximum crash protection
• Commercial production expected within the decade
DC-DC
Fuel Cell ElectricConverterRechargeable Hydrogen
System Traction Energy Storage Storage
System System
• Real-world product evaluations
– Project Driveway (2007 to 2010)
– GM-Hawaii collaboration with production-intent vehicle (ongoing)

17. Project Driveway
• 30-month program started in 2007
• 100+ vehicles in the hands of retail and commercial customers
• Largest-ever market test of fuel cell vehicles
• Amassed more than 2.3 million miles
– Included nearly 20,000 refuelings
– Saved 1.2 million pounds of CO2
from being released into atmosphere

18. GM — Hawaii Collaboration
• Hawaii’s major energy gas provider to make hydrogen available to
Oahu’s one million residents later this decade
– GM to provide vehicles for test market
• GM also collaborating with three U.S. military organizations in Hawaii
by providing 15 fuel cell vehicles for use and evaluation