Mercedes-Benz "Road to the Future" - From BlueTEC Diesel to Electric Vehicles
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Modular Technologies for a Clean Future of the Premium Automobile
STUTTGART - June 13, 2008: Fuel-efficient and environmentally-sustainable premium automobiles from Mercedes-Benz, without the need to forego the characteristic brand features - safety, comfort and refined driving pleasure. This is the strategy of the Stuttgart based vehicle manufacturer. One emphasis within the development strategy is on modular powertrain technologies that can be utilized either individually or in combination, depending upon vehicle class, usage profile and customer requirements. With its “Road to the Future” Mercedes-Benz has presented details on the product implementation. Mercedes-Benz offers a tangible outlook into the future of the combustion engine with the innovative DIESOTTO engine in the research vehicle F 700.
World population, and thus the need for individual mobility, is set to grow dras-tically over the next few decades. At the same time, natural resources are be-coming increasingly scarce as well as consequently more expensive for both consumers and vehicle manufacturers. Add to this, legislative requirements for the environmental sustainability of vehicles differ dramatically from region to region across the globe. For example, many European cities have now established environment zones and the state of California has legislated quotas for zero-emissions vehicles.
Individually tailored solutions for diverse requirements
These developments are already having a noticeable impact on customer
behavior. Alongside economic factors - primarily increasing fuel prices -
the environmental sustainability of vehicles is gaining importance in the
purchasing decision. Everyday customer requirements are also becoming
increasingly differentiated and more individualized - those who drive long
distances cross country have different vehicle requirements than those who
travel largely or exclusively in and around congested urban areas.
Therefore, Mercedes-Benz is convinced that, in the future, one single
technology will not prevail on the road to sustainable mobility. Instead,
to these multi-faceted demands the company is offering equally
multi-faceted individually tailored solutions. The benefits of individual
technologies in respect of optimal fuel consumption and emissions values
are played to their best advantage in specific fields of application. The
approach taken by Mercedes-Benz as a premium manufacturer is therefore
based on vehicle concepts with modular powertrain technologies that ensure
that both customer benefit and environmental sustainability always take
center-stage for the brand with the three-pointed star.
Roadmap for sustainable mobility
The company’s development strategy is centered on securing its
leading position within the premium vehicle segment. Thus, three key fields
of action were defined in the roadmap for sustainable mobility:
Furthermore, the company is also pursuing the development of clean and alter-native fuels that do not present a competitive threat to food crops - one particular example being SunDiesel made from waste plant material.
BlueEFFICIENCY achieves up to twelve percent less fuel
consumption
Development engineers have devised individual packages tailor-made for
each vehicle segment. The objective is to find the best solution for each
individual vehicle model. Under the BlueEFFICIENCY label, Mercedes-Benz has
developed a package of various fuel economic measures, which will be rolled
out through the entire Mercedes-Benz model range. It encompasses
optimization of weight, aerodynamics, rolling resistance, energy management
and powertrain. A good example of this is the Mercedes-Benz C 180
KOMPRESSOR equipped with a four-cylinder gasoline engine. While its
predecessor had a capacity of 1.8 liters, the engine displacement in the
new model has been reduced to 1.6 liters. While power and torque output
have been maintained at the same levels (156 hp, 230 Nm), fuel consumption
has been reduced by 0.9 liters to 6.5 liters per 100 km, in combination
with other initiatives such as the new electric ECO steering systemand
decreased rolling resistance. CO2 emissions are down by over 20 grams per
kilometer - from 177 to 156 grams per kilometer. Overall, BlueEFFICIENCY
initiatives can reduce fuel consumption by up to twelve percent. The
potential of such initiatives shows the fact, that when it comes to fuel
savings - in Germany, the C 180 KOMPRESSOR and the C 200 CDI hold a
combined share of C-Class sales of 25 percent.
Diesel as clean as gasoline ...
It is the stated objective of Mercedes-Benz to make gasoline engines as
efficient as diesel engines, and diesel engines as clean as gasoline
engines. With the highly efficient BlueTEC exhaust gas treatment system,
Mercedes-Benz has already made the diesel as clean as the gasoline engine,
and thus proven the future viability of the self-ignition engine. When it
comes to fuel consumption, the latest diesel technology is currently the
best option for large sedans and SUVs. This is demonstrated by the success
of the E 320 BlueTEC, with which Mercedes-Benz launched the renaissance of
the diesel powertrain for passenger vehicles in the U.S. market in October
2006. This year will see three Mercedes-Benz SUVs follow suit, equipped
with the world’s cleanest diesel technology. The R 320 BlueTEC, the
GL 320 BlueTEC and the ML 320 BlueTEC represent a further milestone in the
U.S.diesel offensive. In March 2008, Mercedes-Benz became the first
manufacturer in the world to achieve registration approval in all 50 states
for Diesel SUVs.
… gasoline as fuel-efficient as diesel
The preferred methods for improving the efficiency of the gasoline
engine are for example reduction in displacement - downsizing - and
turbocharging. As demonstrated by the C 180 KOMPRESSOR, fuel savings can be
achieved without loss of performance. Fuel consumption can be further
reduced and power output increased through the application of
second-generation gasoline direct injection. The E 350 CGI consumes 8.7
liters per 100 kilometers, which is ten percent less than the otherwise
identical 3.5 liter V6 gasoline engine with port injection, in spite of its
20 hp higher power output. This technology will be implemented gradually in
all gasoline engines.
Starting 2009 - fuel-efficient and powerful gasoline hybrids
Further potential for the increased efficiency of combustion engines can
be realized through hybrid technologies. As early as next year,
Mercedes-Benz will launch two gasoline hybrids. In the U.S., the ML 450
BlueHYBRID will be the most fuel-efficient SUV available - equipped with a
Two-Mode hybrid that can also be driven powered purely by electricity. This
hybrid variant is particularly suitable for SUVs and enables fuel savings
even in long-distance driving. Also next year, the S 400 BlueHYBRID will
set a new standard in the luxury class. With only 7.9 liters fuel
consumption in the NEDC, it is the world’s most fuel-efficient
vehicle in its class. In parallel, Mercedes-Benz is offering a needs-based
solution for smaller vehicles. Crucial to the choice of the hybrid module
are the real-life usage patterns namely the actual everyday driving profile
and the cost/benefit relationship. This is why Mercedes-Benz opted to
introduce the smooth ECO start/stop function in the A- and B-Class - a
system that had already proven itself in principle in the smart fortwo
micro hybrid drive, and was further developed for the A- and B-Class.
BlueTEC HYBRID - the champion fuel saver of the future
According to Mercedes experts, clean diesel hybrids currently present
the greatest fuel-saving potential within the larger vehicle segments. The
BlueTEC HYBRID technology is a highly efficient powertrain system that
Mercedes-Benz will bring to series production. The latest study vehicle
from Mercedes-Benz, the Vision GLK BlueTEC HYBRID, offers a concrete
perspective on this technology. This concept study is equipped with the
all-new OM651 four-cylinder diesel. Paired with a compact hybrid module,
the diesel/electric drive assembly has a combined power output of 165
kW/224 hp and a combined torque of 560 Nm - a figure that is on par with
large-displacement V8 gasoline engines at the top of the compact SUV
segment. The refined driving performance of the Vision GLK BlueTEC HYBRID
comes with an extremely low fuel consumption of only 5.9 liters per 100
kilometers.
DIESOTTO combines the best characteristics of gasoline and
diesel
The benefits of low-emission gasoline engines and the fuel consumption
advantages of modern diesel engines are brought together in the DIESOTTO
engine developed by Mercedes-Benz. It combines an all-new kind of
compression ignition with other technologies such as direct injection and
turbocharging. An additional hybrid module is integrated within the F 700
research vehicle. As a result, the F 700 offers the high performance of a
gasoline engine (175 kW/238 hp plus 15 kW/20 hp) and the superior torque of
a diesel engine (400 Nm). Yet, the research vehicle consumes only 5.3
liters of conventional gasoline per 100 kilometers and emits only 127 grams
of CO2 per kilometer, which is extremely low for a vehicle in this
class.
Driving with zero local emissions through pure electric power
In parallel to hybrid concepts, Mercedes-Benz is working intensively on
solutions for purely electric driving using fuel cells and batteries.
Electric drives are particularly quiet, highly efficient and have zero
local emissions. Already since 1991 the company is doing research in the
field of fuel cell technology and therefore has a broad experience in
electric driving. These cognitions can be gainfully used for the
development of battery vehicles as well. Since 2007, the Stuttgart vehicle
maker has been operating a battery-powered test fleet comprising 100 smart
fortwo electric drive vehicles in London. As a zero-emissions vehicle, the
smart fortwo electric drive enjoys tax advantages and is exempt from local
restrictions - such as the congestion charge levied in the British capital.
This makes it an interesting and environment-friendly alter-native,
especially within urban areas. But the success of innovative drive concepts
is directly linked to the allocation and availability of corresponding
infrastructures. Thereby a much more intensive collaboration between energy
companies, petroleum industry and politics together with automobile
manufactures is needed.
Advancement in fuel cell development
Mercedes-Benz is also a leader in the field of fuel cell technology.
Mercedes-Benz has at its disposal the world’s largest customer test
fleet, and will begin with a small-scale series production in 2010 of the
B-Class F-Cell, featuring the next-generation fuel cell drive. This new
generation has a considerable higher output, while at the same time being
more compact. It is capable of cold-start at temperatures as low as -25
degrees Celsius, has a significantly greater range of up to 400 kilometers
and also boasts short refueling times. The key to all forms of vehicle
electrification is the energy storage unit - from hybrids to pure electric
driving with fuel cell and battery vehicles. Compared with other types of
batteries, lithium-ion technology offers considerable advantages, including
very compact dimensions, much greater power output, a long life cycle and a
high level of reliability. The future will see Mercedes-Benz use
lithium-ion batteries also in battery-powered and fuel cell vehicles.
Mercedes-Benz engineers achieved the breakthrough in this field through
patented technological solutions. In 2009 Mercedes-Benz as the
world’s first manufacturer will introduce a passenger car with
lithium-ion battery to market - the S 400 BlueHYBRID.
Clean fuels for clean power units
The development of fuels and powertrains is inseparable linked. High
quality and alternative fuels can release further potential in the
reduction of fuel consumption and emissions. For Daimler, the most
promising option among regenerative fuels for combustion engines is
second-generation biofuels - BTL (Biomass To Liquid) such as SunDiesel.
SunDiesel is an extremely pure, completely free from sulfur and aromatics
fuel, which emits very few pollutants under combustion and is virtually CO2
neutral. The synthetic fuel is derived from the atomization of biomass from
a variety of biogenic ingredients and waste material, meaning that it does
not represent a threat to food crops. Furthermore, SunDiesel can be used in
current and future diesel engines without any need for modification. The
transportation and storage of SunDiesel also requires no modification to
the existing fuel infrastructure. In early 2002, together with CHOREN,
Daimler began to investigate usage op-portunities for BTL, as well as its
economic feasibility and energy balance. Since 2003, the company has been
testing the fuel in its vehicles under everyday driving conditions, and was
able to confirm the advantages of its use in diesel engines. Daimler AG has
had a shareholding in CHOREN Industries since 2006.
Intelligent driveline mix as a solution for future mobility
Mercedes-Benz has already brought a large number of customized
technological solutions to market that meet the demands of the future. The
latest examples are the BlueEFFICIENCY versions of the A- and B-Class with
ECO start/stop function, and the B 170 NGT. The modular powertrain mix -
from of state-of-the-art combustion engines with BlueTEC or direct
injection with and without hybridization to local emission free battery and
fuel cell vehicles - also offers all the prerequisites for long-term,
need-based and individually tailored mobility for Mercedes-Benz customers,
at the high levels expected from the brand.