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Testing fuel cell vehicles is all the rage these days, and Mercedes isn't missing out on the action. The latest hydrogen vehicle tests from the three-pointed star company took place in wintery Sweden. Wouldn't want to coddle a car or anything.

Daimler recently took a B-Class hydrogen car using an optimized fuel-cell system based on the stack in the F 600 HYGENIUS from 2005 through its paces. According to the company, the vehicle worked well in some real world cold situations, was able to hold the road, and in general passed the tests "with flying colours." The road handling issue is extra important, Daimler says, because electric motors (in this case, powered by the fuel cell) don't govern speed the same way as traditional ICEs. Dr. Thomas Weber, Daimler AG board member with responsibility for Research and Development at Mercedes Benz Cars, said the tests showed the drive concept is on the right track. More tests will be done on the fuel cell B-Class in the coming months in preparation for small-series production in 2010. Read more from Daimler after the break



Press Release:

B-Class with fuel-cell drive proves its worth during winter testing in Sweden
  • Comprehensive low-temperature tests under the toughest conditions
  • Another milestone on the road to production standard
The Mercedes-Benz B-Class with fuel-cell drive has passed its winter testing in northern Sweden with flying colours. At double-digit, below-zero temperatures, the zero-emission drive showed what it could do in the comprehensive test programmes. For example, cold start behaviour was subjected to thorough scrutiny. Although Daimler Research had already found a technical solution to the fuel cell's start capability at -25 degrees Celsius, the engineers' focus here was on the interaction between the different components under real-life winter conditions. A further focus of the winter tests was on roadholding. This meant adapting the Electronic Stability Program (ESP) to the special requirements of a fuel-cell vehicle. A special feature in this context is that an electric motor exhibits different speed governing behaviour to that of standard combustion engines.

Dr. Thomas Weber, Daimler AG board member with responsibility for Research and Development at Mercedes Benz Cars, drew positive conclusions from the testing: "The results of the winter tests proved that we are on the right track with this innovative drive concept and have taken another important step on the road to reaching production standard. As with the standard test programmes for conventional vehicles, we will be subjecting the B-Class F-CELL to further rigorous testing over the next few months."

First small series from 2010
Mercedes will be launching the first series vehicle with a local, zero-emission fuel-cell drive in the summer of 2010. Small-series production of the B-Class F-CELL will commence in early 2010. A new generation of fuel-cell drive will be used to power this innovative vehicle. It is much more compact, while at the same time offering greater performance and is completely suitable for everyday use.

The optimised fuel-cell system that Mercedes-Benz presented in 2005 in the F 600 HYGENIUS research vehicle forms the technical basis. This extremely compact fuel-cell system operates much more efficiently than previous generations. The newly designed "stack", the fuel cell module, is roughly 40 percent smaller, yet generates 30 percent greater power, along with a 16 percent reduction in consumption compared to the F-Cell A-Class. The system also demonstrates a good cold start capability, thanks to innovations such as the electric turbocharger for air supply, and the new humidification and demisting system.

Compared to the F-Cell A-Class, a refined, more compact, yet more efficient system is used in the F-CELL B-Class. The electric motor develops maximum output of 100 kW/136 hp and a maximum torque of 320 newton metres. This means that the B-Class F-CELL offers extremely high roadholding standards that surpass those of a standard two-litre petrol engine. At the same time, the zero-emission fuel-cell drive in this family-friendly-design compact vehicle uses the equivalent of just 2.9 litres of fuel (diesel equivalent) per 100 kilometres – and all that with zero-emission.

Daimler AG's fuel-cell fleet has now covered around 3.8 million zero-emission kilometres, giving the company more data, expertise and experience than any other manufacturer. With approximately 100 vehicles, it operates the largest fuel-cell vehicle fleet in the world. Its concept vehicles, passenger cars, vans and Citaro city buses are tested by customers under everyday conditions.

About Daimler
Daimler AG, Stuttgart, with its business units Mercedes-Benz Cars, Daimler Trucks, Daimler Financial Services, Mercedes-Benz Vans and Daimler Buses, is a leading global supplier of premium passenger cars and the world's largest manufacturer of commercial vehicles. Daimler Financial Services offers a comprehensive range of financial services, including financing, leasing, insurance and fleet management. Daimler markets its products in virtually every country in the world, and maintains production facilities on five continents. Company founders Gottlieb Daimler and Karl Benz made history from 1886, with the invention of the automobile. As a pioneer in motor vehicle construction, Daimler considers it both an aspiration and an obligation to meet its responsibilities towards society and the environment, and develop mobile solutions for the future that are both safe and sustainable – with groundbreaking technologies and high-quality products. As well as Mercedes-Benz, the highest-valued automotive brand in the world, Daimler's portfolio today includes the brands smart, Maybach, Freightliner, Sterling, Western Star, Mitsubishi Fuso, Setra, Orion and Thomas Built Buses. The company shares are quoted on the stock exchanges in Frankfurt, New York and Stuttgart (stock exchange abbreviation DAI). In 2007, the group sold 2.1 million vehicles and employed more than 270,000 people. Revenues were approximately 99.4 billion euros, and EBIT 8.7 billion euros. As a company with the ambition of always delivering top performance, Daimler strives to achieve sustainable growth and profitability while maintaining its leadership in the industry.

Further information from Daimler is available on the Internet: www.media.daimler.com

[Source: Daimler]


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