Mercedes Benz

OFFICIAL PRESS RELEASE

Stuttgart, Germany, Jan 29, 2011

As part of the ceremony to mark the 125th birthday of the invention of the motor car on 29 January in Stuttgart, German Chancellor Dr. Angela Merkel and Dr. Dieter Zetsche, Chairman of the Board of Management of Daimler AG, fired the symbolic starting shot for the Mercedes-Benz F-CELL World Drive. Setting out from Stuttgart on 30 January, three Mercedes-Benz B-Class vehicles featuring local zero-emission fuel cell drives are undertaking a 125-day circumnavigation of the world. Travelling across four continents and through 14 countries, the three B-Class F-CELL vehicles will head around the globe once, finishing their "world tour" back in Stuttgart where they started. With the F-CELL World Drive, Mercedes-Benz is aiming to confirm the technical maturity of fuel cell technology, as well as the suitability for everyday use of the vehicles. At the same time, the company will also take the opportunity to enforce the political call to establish a comprehensive filling station infrastructure for fuel cell vehicles.


On January 29, 1886, Carl Benz filed the patent for his three-wheeled "vehicle with gas engine operation" under number 37435, thus setting the first milestone for a completely new form of mobility. Some 125 years to the day later - on 29 January 2011 - Daimler AG is taking this date as an opportunity not only to look back through history and highlight the milestones of automotive development, but also to give a specific insight into the future of mobility. The symbolic start of the F-CELL World Drive, the first circumnavigation of world using standard-production fuel cell vehicles, therefore also took place as part of the celebrations. After the three Mercedes-Benz B-Class F-CELL vehicles - which are starting their long journey on January 30 - were driven onto the stage by Mercedes-Benz racing drivers Michael Schumacher, Nico Rosberg and David Coulthard, the symbolic starting shot was fired by Dr. Dieter Zetsche, Chairman of the Board of Daimler AG, together with German Chancellor Dr. Angela Merkel.

Over a route covering 30,000 kilometres, the three Mercedes-Benz B-Class F-CELL vehicles will demonstrate that they are a safe and reliable means of transport over long distances and in the widest variety of road and weather conditions. "Some 125 years after the invention of the motor car, for us the B-Class F-CELL embodies its reinvention", explains Dr. Dieter Zetsche, Chairman of the Board of Management of Daimler AG, commenting on the significance of the innovative fuel cell vehicle. "As an event which is currently unique, this circumnavigation of the world in customer-ready fuel cell vehicles again demonstrates that we have sufficient pioneering spirit for at least another 125 years of innovation."

On the road with the fuel cell – mobility with zero emissions and no compromises

Electric vehicles with fuel cell combine the benefits of a long range with a short refuelling time. As a result they are able to make a contribution towards local zero-emission mobility not only in densely populated areas, but also over long-distance routes. In addition, besides their use in passenger cars, fuel cell drives can also be used in a variety of other vehicle types, such as urban buses for example. Mercedes-Benz recognised this potential at an early stage, launching the first vehicle with fuel cell drive, the NECAR 1, as early as 1994. Since that time, the company has made very significant progress in the development of this technology, enabling it in the meantime to reach a very high level of technical maturity. As a result, for the first time all of the development and production standards applicable to series production vehicles have now also been applied to the B-Class F-CELL. All of the F-CELL components comply with the highest of Mercedes-Benz standards in terms of their quality, reliability and service life.

Besides local zero-emission mobility, the B-Class F-CELL also provides all of the brand-typical characteristics, such as safety, comfort, superior performance and also exemplary functionality, in combination with complete suitability for everyday use and unrestricted driving pleasure.

With the F-CELL World Drive, Mercedes-Benz wants to prove the high degree of maturity which has been achieved with fuel cell technology and also highlight its potential on a global basis. At the same time the circumnavigation of the world will also draw attention to a significant challenge: the infrastructure for the provision of hydrogen. "This type of electric mobility can only be implemented on a comprehensive scale when it is backed by a network of hydrogen filling stations designed to meet demand. This filling station network now has to be developed by joining forces," explains Dr. Thomas Weber, Daimler AG Board Member responsible for Group Research and Development, Mercedes-Benz Cars. "We have done our homework: the B-Class F-CELL shows to impressive effect the contribution which electric vehicles with fuel cell are already able to make to future mobility. The vehicle enables local zero-emission motoring not only over short routes but also over longer distances. We will demonstrate this with our F-CELL World Drive," confirms Dr. Thomas Weber.

4 continents, 14 countries and 30,000 kilometres in 125 days

Setting off from Stuttgart on January 30, the tour will initially head south via Paris, Barcelona and Madrid, to the Portuguese capital of Lisbon. There the cars will leave European soil and continue their journey by plane to the East Coast of the USA.

From Fort Lauderdale, Florida, the route heads across the North American continent, along the Gulf of Mexico, leading westwards to Los Angeles, California. Then, travelling along the west coast of the USA, the F-CELL World Drive will go north, finally reaching Vancouver, Canada. After driving for roughly one month and covering more than 7500 kilometres, the vehicles will leave North America, in order to continue their tour in the east of Australia. Starting in Sydney, the B-Class F-CELL vehicles will head along the south coast of the fifth continent, covering more than 5000 kilometres, with stopovers in Melbourne and Adelaide, until reaching Perth. The last transfer between continents on the world tour will finally take the F-CELL World Drive to the continent of Asia, to the destination of Shanghai in China.

Travelling via the Chinese capital of Beijing, the fuel cell cars will cover a distance of more than 10,000 kilometres across the continent of Eurasia, heading through the Kazakh cities of Almaty and Astana, to Moscow. This is a stretch of the route with which Mercedes-Benz is already very familiar. In 2006 no less than 33 Mercedes-Benz E-Class vehicles passed through this region, in the opposite direction from Paris to Beijing, as part of the "E-Class Experience".

On the last stage, the route will head through Northern Europe. From St. Petersburg in Russia, the cars will travel via Finland to the Swedish capital of Stockholm. Oslo in Norway is another destination on the route, before the F-CELL World Drive takes the vehicles via Denmark and back to Germany again, where they will make stopovers in such cities as Hamburg. After 70 days of driving on a journey lasting 125 days, the tour will finally come to an end, back in Stuttgart again, at the beginning of June.

More than 20 stopovers

During the F-CELL World Drive, Mercedes-Benz will not only be demonstrating the performance of its vehicles, but at the same time will also make use of the tour to increase global awareness of the potential of fuel cell technology. Local activities providing an opportunity for an intensive exchange of information on the topic of electric mobility will take place on more than 20 days at several locations along the route. The programme will also incorporate politics and partners of the Stuttgart-based automotive manufacturer.

The participants of the tour will therefore pay a visit to the car2go mobility project in Austin, Texas, among others. Austin was the first location for the innovative mobility concept outside of Europe, and the project continues to be extremely successful there. A few days later, the participants will visit the Automotive Fuel Cell Cooperation in Vancouver, Canada. This is where the fuel cell stacks used in the B-Class F-CELL, for example, were developed. The company was established in 2007 with Daimler as the majority shareholder (50.1 percent). The other partners are the Ford Motor Company (30 percent) and Ballard Power Systems (19.9 percent). Furthermore, participants on the Vancouver leg of the tour in Canada will also have the opportunity to meet the adventurer and explorer Mike Horn and experience his PANGAEA Expedition - for which Mercedes-Benz is the main sponsor - first hand. Since October 2008, The PANGAEA Expedition has been visiting all of the continents, including both the North and South Pole. Together with young people from all over the world, expedition leader Mike Horn is setting up ecological and social projects on his journey around the globe. The F-CELL World Drive will also spend several days at "Auto Shanghai" in China, Asia's largest motor show.

The challenge of the infrastructure

The setting up of a comprehensive hydrogen infrastructure for electric vehicles with fuel cells is an important factor for the market success of this technology. So far there are only approx. 200 filling stations around the world at which fuel cell vehicles can be refuelled. Due to the incomplete supply network, the provision of the tour-vehicles with hydrogen represents a tremendous logistical challenge.

Acting as an exclusive partner on the F-CELL World Drive will be the Linde Group which, thanks to its hydrogen know-how and global presence, is able to guarantee a supply throughout the entire circumnavigation of the world. A jointly developed mobile tanker unit will accompany the tour, thus enabling the supply of fuel even on remote sections of the route. In addition to a refuelling pressure of 700 bar, compact dimensions for transport by air were the most important requirements for the specially designed refuelling vehicle.

Even away from the F-CELL World Drive, Daimler and Linde are also working closely together in order to meet the growing hydrogen demands of an ever-increasing number of fuel cell vehicles in the future. As a result, since 2009 both companies have for example been committed, together with major energy suppliers, corporations in the mineral oil industry and other partners, to the "H2-Mobility" initiative for the comprehensive development of a hydrogen infrastructure in Germany.

On the road to sustainable mobility

In recent years Daimler has clearly positioned itself as a pioneer in the area of alternative drive systems. On the road to sustainable mobility, the company is consistently adopting a "multi-lane" approach. The three core focal points for development are: the optimisation of vehicles with state-of-the-art combustion engines; further efficiency increases with hybridisation tailored to customer needs and in line with demand; and fuel cell and battery-powered vehicles that do not produce any local emissions.

The company is consciously backing several concepts for electric mobility. The battery-powered vehicle has therefore been developed as a zero-emission solution for urban motoring, while vehicles incorporating fuel cells are also suitable for inter-city motoring thanks to their long range and short refuelling times. With the B-Class F-CELL, the A-Class E-CELL, the smart fortwo electric drive and the Vito E-CELL, the company offers four locally zero-emission vehicles, all of which are equally ready for series production.

E-Drive modular system for maximum efficiency

Thanks to its E-Drive modular system, Mercedes-Benz can bring standard-production electric cars to market quickly and achieve optimum cost efficiency. This intelligent modular concept makes it possible to use a high proportion of identical parts for a wide range of electric vehicles with battery or fuel cell. The company-wide use of components saves on development time and costs and ensures more "streamlined" production.

All of the key components of electric vehicles are ideally suited to modularisation: from the electric motor and the transmission, the battery and high-voltage safety concept to the high-voltage wiring, and software modules. Specific components, such as stacks and hydrogen tanks, can be used as standard components for entirely different vehicles in the F-CELL line-up, for instance simply by varying the quantity as necessary: thus the Mercedes-Benz fuel cell bus, for example, is powered by two passenger car systems of the same type that is also used in a B-Class F-CELL. In addition, the B-Class F-CELL is powered by the same electric motor as used in the new A-Class E-CELL.

Powerful lithium-ion batteries

Together with its partners, Daimler is forging ahead with the development of sophisticated lithium-ion batteries. This work forms the basis of customised solutions for its unique product portfolio, which covers practically all mobility requirements. Daimler benefits here from the expertise it has accumulated through many years of research work. To date the company has filed more than 750 patents for battery-powered vehicles – and over 380 of these involve lithium-ion technology. Targeted cooperation with expert partners ensures that the battery systems optimally meet all vehicle and application-specific requirements.

One example is Deutsche Accumotive GmbH & Co. KG, a joint venture between Daimler AG and Evonik Industries AG which focuses on system integration, development and production, as well as research and development of battery systems based on lithium-ion technology. The integration of these company-produced batteries into Daimler vehicles is scheduled to start from 2012.

Mercedes-Benz B‑Class F‑CELL

First electric car fully suited for everyday driving and with the driving dynamics of a two-litre petrol car

Mercedes-Benz is launching its first series-produced electric car with a fuel cell on the road: the new B‑Class F‑CELL. The small-scale production of the environmentally friendly electric car is already underway. In 2010, the first of around 200 vehicles have been delivered to customers in Europe and the USA. At the heart of the B‑Class F‑CELL is the new-generation electric drive system powered by a fuel cell, which is compact, powerful, safe and fully suited for everyday use. The fuel cell generates the electrical power on board, while producing little more than pure water and zero emissions. The key drive components are located in the sandwich floor, where they are protected and do not take up much space, leaving the vehicle's interior and boot fully usable. Thanks to its long range of around 400 kilometres and short refuelling times, the B‑Class F‑CELL combines local zero-emission mobility with long-distance comfort and compelling performance. Driving pleasure and performance on a par with a 2.0-litre petrol car come courtesy of the 100-kW/136-hp electric motor, which develops effortlessly superior torque of 290 Nm. The B‑Class F‑CELL consumes the equivalent of 3.3 litres of diesel per 100 kilometres in the New European Driving Cycle (NEDC).

The technology for the B‑Class F‑CELL drive system is based on the optimised latest-generation fuel cell system. It is some 40 percent smaller than the system in the A-Class F‑CELL from 2004, but develops 30 percent more power while consuming 30 percent less fuel. The main drive system components include:

- A compact fuel cell stack
- A powerful lithium-ion battery
- Three 700-bar tanks for the hydrogen and
- A compact, lightweight drive motor at the front axle.
- Cold-start capability down to minus 25 degrees Celsius

The fuel cell module in the B‑Class F‑CELL, the stack, boasts outstanding cold-start capability down to minus 25 degrees Celsius. The system features a new humidification system consisting of hollow fibres that ensures, unlike with the first-generation fuel cell, that water no longer freezes in the stack, a characteristic that used to impair cold-start capability. Even at minus 15 degrees Celsius the B‑Class F‑CELL starts just as quickly as the very latest diesel engine. A dedicated operating strategy helps ensure the fuel cell stack reaches its optimum operating temperature of around 80 degrees Celsius as quickly as possible each time the vehicle is started. Thanks to the powerful cooling system and intelligent temperature management, this 'pleasant temperature' is maintained constant under all operating conditions.

Range of around 400 kilometres with the tanks full

The hydrogen used to run the fuel cell is stored in three tanks at a pressure of 700 bar. Each tank holds just under 4 kilograms of the gaseous fuel. The tanks are hermetically sealed from the outside world, preventing the loss of hydrogen into the atmosphere even if the vehicle is left to stand for long periods. Thanks to the high compression ratio, the B‑Class F‑CELL can cover long ranges of up to 400 kilometres with the tanks full, over twice as far as the A-Class F‑CELL. If the tanks are empty, they can be filled simply and quickly in less than three minutes, thanks to a standardised refuelling system.

Equivalent of just 3.3 litres of diesel per 100 kilometres

The electric motor – a permanently excited synchronous motor – develops a peak output of 100 kW/136 hp and a maximum torque of 290 Nm – typical of the high torque generated by an electric motor –, which is available from the instant the engine starts to turn. It ensures that the B‑Class F‑CELL, whose impressive dynamic handling properties are in some cases far better than those of a two-litre petrol car, gets off to an excellent start. Nonetheless, the local zero-emission electric drive with fuel cells consumes the equivalent of just 3.3 litres of diesel per 100 kilometres (NEDC).

Compact lithium-ion battery with high power density

A powerful high-voltage lithium-ion battery is used to store the power. It boasts an energy capacity of 1.4 kWh and is cooled via the air-conditioning system circuit. When it came to the battery for the B‑Class F‑CELL, Mercedes‑Benz drew on the experience garnered during the development of the lithium-ion technology for the S 400 HYBRID. Advantages of the lithium-ion battery include its compact dimensions and much superior performance compared with nickel metal hydride batteries (NiMH). The energy density is 30 percent higher than with NiMH technology; the power density 50 percent higher by comparison. Furthermore, high recharge efficiency and a long service life make the technology even more compelling.

Intelligent drive system management for superb efficiency

Mercedes-Benz has further enhanced the operating strategy of the electric drive with fuel cells for the B‑Class F‑CELL. As the outside temperature plummets, the electric motor receives its electrical energy during a cold start both from the lithium-ion battery and from the fuel cell system as it "powers up". Battery power is sufficient as the outside temperature warms up; the fuel cell then comes on line later – depending on the power requirements. In drive mode, the energy management system constantly maintains the F‑CELL system in the optimum operating range. The lithium-ion battery dynamically smoothes out variations with regard to the electrical power required in the current driving situation.

Whenever the driver brakes or as soon as they take their foot off the accelerator, the electric motor converts kinetic energy into electrical energy, which is then stored in the battery, using a process known as recuperation. While manoeuvring or on short journeys, the electric drive motor uses battery power. If the battery capacity is not sufficient, the fuel cell automatically kicks in. In a bid to ensure optimum efficiency and customer benefits, the intelligent drive management system decides whether the electrical energy is used from the lithium-ion battery, the fuel cell, or a combination of the two systems.

Full everyday practicality

Five seats and a boot capacity of 416 litres make the B‑Class F‑CELL fully suitable for day-to-day and family use. The key components for the electric drive with fuel cell are optimally protected in the vehicle underbody, thanks to a space-saving design that also promotes a low centre of gravity. Advantages of the design include:

- The generous interior space in the B‑Class is fully retained. As the entire fuel cell system is integrated into the spacious sandwich floor, no compromises are necessary with respect to passenger and luggage space as well as variability
- The drive technology built into the sandwich floor ensures a low centre of gravity and, consequently, extremely reliable, agile handling
- Crash safety meets the extremely high standards associated with Mercedes, as the key drive components as well as the hydrogen tanks are placed between the axles.

The B‑Class F‑CELL offers consummate driving pleasure and full day-to-day suitability – without local emissions. The innovative electric car also has a great deal to offer when it comes to equipment and appointments, including the bonamite silver special paint finish and exclusive 10-spoke light-alloy wheels. In the interior, leather upholstery, heated seats, automatic climate control and the COMAND system, as well as other features, ensure a high level of comfort. The dynamic energy flow display in the COMAND system display keeps the driver constantly abreast of the battery charge status, operating mode of the fuel cell system, as well as providing information on nearby hydrogen filling stations.

Safety first: uncompromising safety standards

Mercedes-Benz applies the same high safety standards to the B‑Class F‑CELL as to any of its other series-production models. The starting point is the outstanding crash safety of the Mercedes-Benz B‑Class, which received the highest five-star rating in the European NCAP (New Car Assessment Programme). The integrated safety concept of the B‑Class F‑CELL takes the specific characteristics of the innovative drive system into account. The experience garnered over many years by Mercedes-Benz with the electric drive powered by fuel cells from the A-Class F‑CELL and the high-voltage technology involving the lithium-ion battery from the S 400 HYBRID went into honing the concept.

Mercedes engineers have tested the safety of the drive-specific components including the hydrogen tanks in the B‑Class F‑CELL in more than 30 crash tests. The hydrogen tanks are installed in the sandwich floor and therefore well protected in the event of an impact. They hold the hydrogen which is pressurised to 700 bar and have been designed to withstand all conceivable loads. In the event of a crash, safety valves close the hydrogen supply lines to the fuel cell and decouple the tanks from the other system components. Even after a serious accident, the hydrogen poses no risk whatsoever. If a fire leads to excessive heat, a temperature-controlled value vents the tank contents in a controlled manner.

The lithium-ion battery and the high-voltage system in the B‑Class F‑CELL feature – based on the experience garnered with hybrid technology in the S 400 HYBRID – an extensive, seven-stage safety concept.

- All the wiring is colour-coded to avoid confusion, and marked with safety instructions. This prevents assembly errors in production or in repairs, and makes the quality checks easier to carry out
- Comprehensive contact protection for the entire system by means of generous insulation and dedicated connectors
- The lithium-ion battery is accommodated in a high-strength steel housing. Further safety features: blow-off vent with a rupture disc and a separate cooling circuit. An internal electronic controller continuously monitors the safety requirements and immediately signals any malfunctions
- All high-voltage components are connected by an electric loop. In the event of a malfunction the high-voltage system is automatically switched off
- As soon as the ignition is switched to "Off", or in the event of a possible malfunction, the high-voltage system is actively discharged
- During an accident, the high-voltage system is completely switched off within fractions of a second
- The system is continuously monitored for short circuits

The high level of safety means Mercedes-Benz fuel cell vehicles can use underground car parks, multi-storey car parks or tunnels with no restrictions whatsoever.



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