CNG Future Building Blocks
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Transcript CNG Future Building Blocks
What Does the Future Hold for
Advanced Technologies?
John German
American Honda Motor Co., Inc.
Advanced Powertrain Forum
August 5, 2005
3 Issues for the Future
Automobile:
Energy Supply & Demand
Sustainability
Climate Change
Urban Air Quality
Social Concerns
Transportation’s Social Issues
Key Issues
Energy
Sustainability
Climate Change
Air Pollution
Honda is Committed to Clean
and Efficient Gasoline Vehicles
• Technically
advanced F.E.
leading models in
the market
• Popular massmarket models with
continual efficiency
improvement
• Highest CAFE of
major OEMs
Honda’s Environmental Leadership
1975
Civic CVCC
1st to meet ’70’s Clean Air Act,
without a catalyst
1986
Civic CRX-HF
1st to top 50-mpg mark
1990
VTEC engine
introduced
Seemingly-incompatible
achievement of -1. Strong performance
2. Low emissions
3. High fuel economy
Efficiency / CO2 Reduction
Honda’s Power Train Roadmap
Hydrogen fueled FCV
FCV
Alternative Fuel Vehicle
+
Improvement of ICE
I. C. Engine
Technologies
IMA
Accord
Civic I M A
IMA
CNG
i-DSI
Integrated Motor Assist
INSIGHT
CVT
i-VTEC
VTEC-E
1990
2000
2010
2020
Honda’s Building Blocks for the Future
CNG
Future Building Blocks
• Working with Government
• Understanding Fleet Customers
• Infrastructure Challenges
• Gaseous Fuel know-how
PURE ELECTRIC
Future Building Blocks
• EV know-how
• Infrastructure Issues
• Home Refueling
• Customer Habits
CLEAN GASOLINE
Future Building Block
• LEV, ULEV, SULEV Leadership
• Infrastructure is perfect
• Reasonable cost
• Catalyst technology
Honda’s Building Blocks for the Future
CNG
HOME
REFUELED AFV
PURE ELECTRIC
Combines CNG with BEV attributes:
• Home Refueling
• As Clean as a BEV
• Lower Cost potential
Future Building Block:
• Potential Infrastructure Solution
• Gaseous Fuel know-how
GASOLINEELECTRIC HYBRIDS
CLEAN GASOLINE
Combines BEV with ULEV
• Infrastructure is perfect
• Cost is affordable
• Good Customer Acceptance
Future Building Block:
• Electric Energy Mgmt &
Safety...
Honda’s Future Dream
CNG
HOME REFUELED AFV
FUEL CELL
VEHICLES
PURE ELECTRIC
GASOLINE-ELECTRIC
HYBRIDS
CLEAN GASOLINE
Built on Core Honda Technologies:
• EV and HEV vehicle know-how
• Gaseous Fuel know-how
• Catalyst know-how
• Infrastructure innovation
• Technology innovation (Ultra-Cap)
Conventional Technology
Honda VTEC Combustion:
(Variable valve Timing and lift, Electronically Controlled)
• HIGHER EFFICIENCY
• LOWER EMISSIONS
• GREATER PERFORMANCE
Application %
50%
‘91
‘95
‘03
Variable Cylinder Management
Accel
6 Cylinder operation
Cruise
3 Cylinder
operation
Decel
Vehicle speed
Honda Announced Improvements
• 2006 Civic VTEC
– Delays intake valve closure timing during cruising
and other low-load conditions
• Throttle-by-wire used for larger throttle opening and a
major reduction in pumping loss
– Switches valve timing for excellent acceleration
• Advanced VTEC
– Continuously variable intake valve timing and lift
– + 13% efficiency (vs. 2005 i-VTEC engine
• Advanced VCM
– Increased flexibility to expand range of driving
conditions
– Improved active control engine mounts
– + 11% efficiency (vs. 2005 Honda V-6 engine)
Transmission Advances
Computer controls are enabling a variety
of improved transmission designs
• Dual-clutch automated manual
– Smooth shifting and potentially cheaper
– But launch concerns (no torque converter), huge investment
• Continuously Variable Transmission (CVT)
– Excellent city efficiency and extremely smooth
– Can deliver steady-state engine speeds to facilitate HCCI
– But torque limited, highway efficiency lower (belt friction), huge
investment
• Improved shift points and lock-up strategies
– Low investment
• Lapillier 6-speed automatic
Not yet clear which is most cost-effective
– all may co-exist
Incremental FE Technology
• Engine technology
– High specific output
(including 4 valve/cylinder)
– Variable valve timing/lift
– Cylinder deactivation
– Direct injection
– Precise air/fuel metering
• Transmission efficiency
– 5/6 speed-AT/6-speed MT
– CVT
– Dual-clutch automated MT
• Reduced losses
–
–
–
–
Lightweight materials
Low drag coefficient
Low resistance tires
Lower accessory losses
Cost and value issue
• These technologies are
continuously being
incorporated into vehicles.
• However, consumers value
other attributes more highly,
such as performance,
safety, utility, and luxury.
• Putting in technologies just
to improve fuel economy
may not be valued by
customers.
Fuel Economy Improvement - ???
Depends on how much is already
incorporated into fleet and synergies (or
lack of synergy) between technologies
Worldwide Fuel Control
• On a systems basis, good fuel is
needed to enable many technologies
• Growing countries, such as India and
China, need to improve fuel quality
– Sulfur
– Heavy metals
– Aromatics
– Deposit additives
– etc
Diesels