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COMMERCIAL IN CONFIDENCE The information contained in this document is the property of BAE Systems, and further dissemination is prohibited without the written permission of BAE Systems.
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BAE Systems
Benefits and Challenges with clean technology in the
China transit market
Michael Reilly,Chief Representative,China
31 October 2012
COMMERCIAL IN CONFIDENCE The information contained in this document is the property of BAE Systems, and further dissemination is prohibited without the written permission of BAE Systems.
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Systems integrator for cleaner, smarter transportation
Components
• Electric motors and
controls for propulsion
• Electric motors and
controls for accessory
components like air
conditioning and other
systems
• Power Electronics
• Energy storage systems
• Battery chargers
Path to Lighter Weight, Higher Energy Efficiency and Improved Performance
Benefits
• Improved overall energy
management
• Maximized use of regenerative
energy
• Reduced operating cost
• Electric drive component
compatibility/commonality/Re-use
• Lighter vehicle weight
• Improved safety
• Zero emissions
• Lower noise operation
Vehicles
• Hybrids
• Plug in hybrids
• Fuel cell vehicles
• Battery-electric
vehicles
• Trolley buses
• Light and heavy rail
COMMERCIAL IN CONFIDENCE The information contained in this document is the property of BAE Systems, and further dissemination is prohibited without the written permission of BAE Systems.
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Global bus
• Fleet
– 3,800+ systems in service
– World’s largest hybrid bus fleet: New York City (1675 buses,
800 units equipped with lithium-ion energy storage,
10,000,000 miles accumulated)
– Other hybrid bus fleets: Houston, London, Ottawa, San
Francisco, Seattle, Toronto and more
• Fleet usage
– More than 300 million miles cumulative
– HybriDrive propulsion systems travel an average of 12 million
miles each month
– 1.8 million + passengers trips daily
– 1 billion passenger trips cumulative
• Public benefits
– 25 million gallons saved cumulative – up to 40% better MPG
– 280,000 tons of CO2 prevented cumulative
In use around the world - zero emission adaptable
COMMERCIAL IN CONFIDENCE The information contained in this document is the property of BAE Systems, and further dissemination is prohibited without the written permission of BAE Systems.
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Hybrid architectures – series vs. parallel
Series Hybrid Drive Train
Architecture choice dependent on vocation and duty cycle
GEAR
-BOX
Integrated
Drive Unit
Electric Interconnect
Mechanical Interconnect
MO
TO
R
GE
NE
RA
TO
R
TRANSMISSION
CONTROLLER
Integrated
Drive Unit
Parallel Hybrid Drive Train
• Sized for full all-electric mobility
• No mechanical coupling of engine to road enables
maximum control over engine operation
• Applicable for fuel cell or battery powered vehicles
• Ideal for urban Transit Buses
• Sized for desired braking energy capture
• Engine still mechanically coupled to road;
enables higher efficiency at highway speeds
• Scalable for a wide range of duty cycles
• Ideal for trucks
MOTOR
ENERGY
STORAGE CONTROLLER
MO
TO
R
GE
NE
RA
TO
R
ENGINE ENGINE
CONTROLLER ENERGY
STORAGE
COMMERCIAL IN CONFIDENCE The information contained in this document is the property of BAE Systems, and further dissemination is prohibited without the written permission of BAE Systems.
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HybriDriveTM series hybrid system overview: core components
Propulsion Control System
(PCS)
Modular Traction System (MTS)
(Traction Motor, Generator, Gearbox)
Energy Storage System
(ESS)
Accessory Power System
(APS)
HybriDrive® series propulsion systems are suitable for all-electric
vehicles as well… simply omit the engine and
generator
COMMERCIAL IN CONFIDENCE The information contained in this document is the property of BAE Systems, and further dissemination is prohibited without the written permission of BAE Systems.
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Altoona Fuel Economy Results – Baseline system
Altoona Fuel Economy
NFI 40' Bus
5.0
4.2
7.4
5.2
3.63.9
6.1
4.2
2.6
3.0
4.4
3.1
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
CBD ART COM TOTAL
Duty Cycle
MP
G
NFI w/ BAE Systems
Bus #904 - BRT
Test Year 2009
GVW 42,410
SLW 38,300
Eng ISB 260
NFI w/Allison
Bus #511 - DE40LF
Test Year 2005
GVW 41,730
SLW 35,770
Eng ISL 280
NFI Diesel
Bus #607 D40LF
Test Year 2006
GVW 37,970
SLW 31,860
Eng ISM 280
Optimizations post testing further improved fuel economy
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London test results
• 17 vehicles on 4 routes
• 97%+ availability of hybrid system in service
• 94%+ availability of vehicle in service
• 250,000+ in service miles for Enviro 400H double decker
• 100,000 in service miles for Enviro 200H single decker
• Fuel economy figures vary from route to route, but are achieving up
to 30% saving in fuel used
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Up to 30 percent savings in fuel demonstrated in service
Operator Route Number
of
Vehicles
Total
Miles
Average
Hybrid
MPG
Average
Diesel MPG
%
Reduction
in Fuel Use
Average
MPH Availability of
Hybrid
System
London
General 24 5 63000+ 6.8 5.4 21 6.7 97%
Metrolin
e 16 5 70000+ 7.1 5.2 27 7.2 98%
London
United 482 2 41000+ 8.2 5.7 30 12.8 99%
London
United 371 5 38000+ 9.6 7.7 20 10.2 97%
COMMERCIAL IN CONFIDENCE The information contained in this document is the property of BAE Systems, and further dissemination is prohibited without the written permission of BAE Systems.
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Your optimum Power Management System supplier in a rapidly changing world
Issues to Consider
• Benefits clear – less fuel consumption, reduce emissions, smoother
ride. Do they outweigh the challenges?
• Costs: - are fuel cost savings over the lifecycle of the bus enough to
achieve lower overall capital cost?
• Subsidies: - is subsidy policy appropriate, or targeted on inappropriate
objectives? Are subsidies sufficiently attractive?
• Technology: - is current policy achieving desired results?
- is technology reliable/robust enough for demands?
- what is the most appropriate system to use?
- are batteries sufficiently reliable?
COMMERCIAL IN CONFIDENCE The information contained in this document is the property of BAE Systems, and further dissemination is prohibited without the written permission of BAE Systems.
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