Volvo Approach to Sustainable Environment & Mobility. SHARMA.pdfVolvo Approach to Sustainable...
Transcript of Volvo Approach to Sustainable Environment & Mobility. SHARMA.pdfVolvo Approach to Sustainable...
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Volvo BusesKarthik Sarma1 20-Jun-2012
Volvo Approach to Sustainable Environment & Mobility.
Karthik Sarma
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Volvo BusesKarthik Sarma2 20-Jun-2012
Heavy Buses account for nearly 1% out of the 14% of transport contribution to global emissions.
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Volvo BusesKarthik Sarma3 20-Jun-2012
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Volvo BusesKarthik Sarma4 20-Jun-2012
Optimal Solution benefitting environment and energy use?
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Volvo BusesKarthik Sarma5 20-Jun-2012
Hybrid Value Proposition
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Volvo BusesKarthik Sarma6 20-Jun-2012
Greetings from some Volvo Hybrids -around the world
Göteborg
BernLeeds
Oslo
GrazLuxembourgLondon
Trondheim
CuritibaMexico City
Aarau
Copenhagen
Randers
Dortmund
Strasbourg Luzern
Dordrecht
Stade
Solothurn
Alcobendas Tampere
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Volvo BusesKarthik Sarma7 20-Jun-2012
Volvo 7900 Hybrid - Summary• In-House Parallel Design
- 37% Lower fuel consumption**- 50% less NOx and PM**- Increased passenger capacity- Silent start and -3 dB less noise- 120 kW Electrical machine- Electric AC, Compressor, Steering Servo
- Lowest life time cost*- Very High reliability
* Including environmental cost** compared to conventional diesel vehicle
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Volvo BusesKarthik Sarma8 20-Jun-2012
Key achievements Volvo Hybrid 7900 B5LH
* Source: CV Magazine, June’12
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Volvo BusesKarthik Sarma9 20-Jun-2012
Volvo 7900 Hybrid – Key FeaturesQuality & Uptime
Improved fit & finish
Improved quality
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Volvo BusesKarthik Sarma10 20-Jun-2012 2011 September
Volvo 7900 Hybrid – Principle IdeaBackground – Energy distribution
8%
11%
2%3%
76%
Rolling ret
Roll, acc
Drag, retDrag, acc
Rolling lossesAerodynamic lossesBrake losses reusable
Brake
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Volvo BusesKarthik Sarma11 20-Jun-2012 2010-03-01
Volvo 7900 HybridProduct Design – Visual look
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Volvo BusesKarthik Sarma12 20-Jun-2012
Volvo 7900 HybridPrinciple Design – Power and torque
• Energy-efficient diesel enginecombined with electric engine
• Can jointly or separately power thevehicle
• Diesel and electric operationcoordinated optimally for bestperformance and lowestenvironmental impact
• Electric engine used at start andacceleration up to 15 km/h. = Lownoise level at start
• Running at idle can be avoided
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Volvo BusesKarthik Sarma13 20-Jun-2012
Volvo 7900 Parallel Hybrid - Efficiency at constant speed: 0.43 * 0.98 42% 15% lower fuel consumption than serial hybrid
~43%
~95%
~98%
~95%~81%
~43%
~98%
~95% ~95%
~95%
~81%
Serial Hybrid - Efficiency at constant speed: 0.43 * 0.95 * 0.95 *0.95*0.98 36%
Volvo 7900 HybridPrinciple Design – Serial v parallel concept
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Volvo BusesKarthik Sarma14 20-Jun-2012
Volvo’s hybrid technology– accelerates transition to CO2-free transport
• 20-30% lower fuel consumption and emissionsof CO2
• 40-50% lower controlled emissions
• Favourable performance in various trafficenvironments
• Revolutionary for operator economy
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Volvo BusesKarthik Sarma15 20-Jun-201215
Hybrid background – the conventional drivetrain
Advantage of conventional:- High range- Compact energy storage
Diesel EngineATM
gearbox DMotoring < 40 %
First step to improved solution:- An all electric vehicle
n
D
EnergyStorage
+ -
El.mach Gearbox
PowerElectronics
95 %
95 %
90x90 %
Drawback of conventional:- Low efficiency in city cycles, < 40 %- No regenerative braking
Hybrid Concepts
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Volvo BusesKarthik Sarma16 20-Jun-2012
n
D
EnergyStorage
+ -
El.mach Gearbox
PowerElectronics
95 %
95 %
90x90 %
Electric Vehicle
Advantage:- High average efficiency- Regenerative braking- Packaging
D
EnergyStorage
+ -
El.mach GearboxDiesel Engine El.
mach
PowerElectronics
PowerElectronics
95 %
95 % 95 %
90x90 %
95 %
Idea to improved solution:- An ICE driven range extender -> The Series Hybrid Vehicle
Drawbacks:- Short range- Reduced payload
Hybrid Concepts
Regen
< 80%
Motoring
< 80%
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Volvo BusesKarthik Sarma17 20-Jun-2012
Series Hybrid – principal layout
Advantage:- Long range- Freedom in packaging-Good brake recuperation
D
EnergyStorage
+ -
El.mach GearboxDiesel Engine El.
mach
PowerElectronics
PowerElectronics
Motoring < 30 %
AccelerationRegen up to 80%
Gearbox D
EnergyStorage
+ -
El.mach
Diesel Engine
PowerElectronics
Drawbacks:- Large high power energy storage - Low ICE drive efficiency at constant speed
Hybrid Concepts
Improved solution:- Connect ICE to wheels mechanically –> The Parallel Hybrid
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Volvo BusesKarthik Sarma18 20-Jun-2012
Gearbox D
EnergyStorage
+ -
El.mach
Diesel Engine
PowerElectronics
The Parallel Hybrid – The Volvo Group Solution
Motoring > 40 %
Advantages of the parallel vehicle:- Good commonality with existing powertrain- High range- High motoring efficiency due to hybridization- Less costly, due to low complexity
Regen up to 80 %
Limitations:- Slightly lower regenerative braking capability due to lower EM rating than Series Hybrid
- Matters only at extensive stop&go- Mechanical transmission to wheels influences packaging
Hybrid Concepts
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Volvo BusesKarthik Sarma19 20-Jun-2012
Spe
ed
Parallel hybrid – efficient in different environments
London -30% Göteborg -20%
TimeS
peed
Time
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Volvo BusesKarthik Sarma20 20-Jun-2012
0
5
10
15
20
25
30
35
0 10 20 30 40 50 60
Average Speed (km/h)
% o
f pop
ulat
ion
European Bus MarketShare of buses vs route speed over full life time -Data based on 10 000 Volvo buses.
5%
29%13% 18% 18% 15%
Serial hybrid* Parallel hybrid*
10%
20%
30%
40%
Average speed in route (km/h)0 10
0%20 30 40 50 60
* Commercial hybrid packages from supplier industry
Average speed in route (km/h)
Fuel
sav
ing
%Fl
eet %
Volvo 7900 Hybrid – Principle IdeaTransport efficiency/VLP
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Volvo BusesKarthik Sarma21 20-Jun-2012
Volvo 7900 HybridEnvironment – Volvo development
0
20
40
60
80
100
Euro III Euro IV EEV Hybrid
0
20
40
60
80
100
Euro III Euro IV EEV Hybrid
0
20
40
60
80
100
Euro III Euro IV EEV Hybrid
Fuel consumption*
Nitrogen oxides (NOx)
Particulates (PM)
*Volvo development
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Volvo BusesKarthik Sarma22 20-Jun-2012
Volvo 7900 HybridEnvironment – Environmental Facts & Figures
CO2 NOx
kms kms
Exha
ust p
ollu
tant
s
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Volvo BusesKarthik Sarma23 20-Jun-2012Master presentation 2010-03-01
Volvo 7900 HybridEnvironment – Emission Legislation development
0
0.02
0.04
0.06
0.08
0.1
0.12
0.14
0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 6 6.5 7 7.5
Part
icul
ates
[g/
kWh]
Euro 3, 2000
Euro 2, 1996
US 02, 2002
NOx [g/kWh]US 10, 2010
Japan, 2005Euro 5, 2009 Euro 4, 2006
US 07, 2007
Volvo hybrid, 2009
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Volvo BusesKarthik Sarma24 20-Jun-2012
Volvo 7900 HybridSystem Performance - Driveline - Live = Energized = Voltage applied
- Traction voltage = Between 60V-1000V within HEV.
- High Voltage = Levels over 1000V. Not present in HEV.
- Extra Low Voltage = Levels below 60V DC or 25V AC
- ePTO = Electrical power take-off- HEV = Hybrid electric vehicle- HJB = HEV Junction Box- MDS = Motor Drive System- PEC = Power Electronic Converter- HPCU = Hybrid Powertrain Control Unit- DC/DC = Voltage Converter- HVIL = Hazardous Voltage Interlock Loop- AMT = Automatic Manual Transmission- ESS = Energy Storage System- EM = Electric Motor- D5 = City duty 5 liter engine
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Volvo BusesKarthik Sarma25 20-Jun-2012
Breaking Acceleration
120 kWVolvo B7L Mixed cycle
Volvo 7900 HybridVehicle Performance - Energy Distribution
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Volvo BusesKarthik Sarma26 20-Jun-2012
Hybrid is the base for:- Economical- Simple- Efficient- Environmentally friendly
Result in: - Public transportation with high availability
Volvo 7900 Hybrid - SupplementsQuality & Uptime – Global interest for Hybrids
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Volvo BusesKarthik Sarma27 20-Jun-2012
..
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Range possibilities for parallel technique in SORT 1 and SORT 2 like transport cycle
Range possibilities for serial hybrid technique on SORT 1 like
transport cycle
Volvo 7900 Hybrid - SupplementsProductivity – Vehicle performance
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Volvo BusesKarthik Sarma28 20-Jun-2012
Swiss Post press release - up to 30% in überland
Volvo 7900 Hybrid – Customer references
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Volvo BusesKarthik Sarma29 20-Jun-2012
Srl No. Parameter Specifications Life cycle
1. Electrical / Traction Storagesystem 600 V, DC 4 ½ years
2. Electrical Motor Permanent Magnet, AC motor, 3 phase, 120 kW, 400 Nmcontinuous torque, 800 Nm peak torque 12 years
3. EngineMD5, 5 liter, city duty downsized engine, 4-cylinder, 4-stroke turbocharged and intercooled in-line 4 valve, 215HP, 600 Nm
Overhaul at 500000 km / 8 years
4. DC/DC converter 600 V-24 V 12 years
LCC calculated based on total life of 12 years
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Volvo BusesKarthik Sarma30 20-Jun-2012
THANK-YOU