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The Road to Emission-free Driving by Daimler – Part 5 of 5

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Tomorrow’s electromobility.

Ideal solutions to meet all the requirements of mobility of the future.

 

 

Flexible vehicle architecture for customized mobility.

With the F 800 Style research car, Mercedes-Benz is showing how various sustainable drive solutions can be implemented in a single large vehicle. One of the most significant innovations in the F 800 Style is its newly developed flexible vehicle architec- ture for large sedans – the only such system in the world. This highly flexible platform allows the integration of various alterna- tive drive technologies in a classic sedan architecture.

The Mercedes-Benz F 800 Style with plug-in hybrid drive makes for locally emission-free electric driving in city traffic. Its drive unit consists of a V6 gasoline engine developing approximately 220 kW (300 hp) with next-generation direct injection and a hybrid module with an output of around 80 kW (109 hp), so that its overall power output is in the order of 300 kW (409 hp). Thanks to its efficient drive system and the CO2 bonus for battery-electric operation, this vehicle has a certified fuel consumption of just 2.9 liters of gasoline per 100 kilometers, corresponding to only 68 grams of CO2 per kilometer. By reason of its excellent fuel efficiency, the F 800 Style with plug-in hybrid nevertheless has the driving performance of a sportscar (0 to 100 km / h in 4.8 seconds, maximum speed 250 km / h). Its top speed in electric mode is 120 km / h. The F 800 Style thus also meets the requirements of long-distance travel.

In the F-CELL version of the Mercedes-Benz F 800 Style, an electric drive unit with fuel cell makes for locally zero-emission driving over a range of almost 600 kilometers. The electric motor, with an output of around 100 kW (136 hp), develops a generous torque of approximately 290 Nm. The fuel cell of the F 800 Style is positioned in the front section, while its compact electric motor is located near the rear axle. The lithium-ion battery and the four hydrogen tanks are installed behind the rear seats, where they are afforded maximum protection in the case of an accident. The fuel cell drive components are derived from the E-Drive modular system developed by Mercedes-Benz for a variety of electric vehicles.

 

The Mercedes-Benz F 800 Style research vehicle is designed both as a plug-in hybrid and as a variant with electric drive on the basis of fuel cell technology.


Mercedes-Benz Concept BlueZERO: Pioneer of a new generation of electric vehicles.

Another concrete example of environmentally responsible electro- mobility for everyday use is the near-series Mercedes-Benz Concept BlueZERO. On the basis of a vehicle architecture, the intelligent modular concept makes for three models with different drive configurations that can fulfill all customer requirements for sustainable mobility:

• The BlueZERO E-CELL with purely battery-electric drive has a range of up to 200 kilometers.

• The BlueZERO F-CELL with fuel cell makes long-distance travel possible thanks to its electric range of around 400 kilometers.

• The BlueZERO E-CELL PLUS with electric drive and additional internal combustion engine as a generator (“range extender”) has an overall operating range of up to 600 kilometers and can cover up to 100 kilometers in purely electric mode.

 

A space-saving location out of harm’s way.

The three BlueZERO variants were realized on the basis of the unique sandwich floor architecture which Daimler introduced more than ten years ago, also with a view to integrating alternative drive units for the Mercedes-Benz A-Class, and was subsequently further developed for the Mercedes-Benz B-Class. The vehicle has five fully functional seats and is entirely suitable for everyday use, with a payload of 450 kilograms and a luggage space of more than 500 liters. The principal drive components are installed in the vehicle’s underfloor unit for a low center of mass and optimal protection, in addition to saving space. This ensures a high level of safety, particularly in the case of an accident.

 

Emission-free driving with a generous range and various drive solutions: The Concept BlueZERO F-CELL with fuel cell technology and a range of over 400 kilometers (left) provides absolutely clean individual mobility. The electric drive unit with range extender in the Concept BlueZERO E-CELL PLUS makes for a range of up to 600 kilometers, 100 kilometers of which are emission-free (right).

 

The driver plays the key role.
Modern drive and assistance systems make for tan- gible savings and help protect the environment – but it is the human driver who plays the decisive role.

Gasoline, diesel, hybrid, electric? The choice of the optimal drive system largely depends on personal mobility require- ments. Product blends matched to individual needs constitute the heart of Daimler’s “Road to Emission-free Driving” initiative. However, aside from all technical new develop- ments and advances in drive systems, fuels, and assistance systems, the driver still plays a significant role that should not be underestimated. Several minimal changes in individual driver behavior together have the potential to markedly influence a vehicle’s fuel consumption and thus also its pollutant emission levels. These factors account for no less than 20 percent of overall fuel consumption. Reducing consumption is thus a key factor in the quest for emission- free driving for the future.

 

Seven hints for economical driving:

1. Start off prudently. Bear in mind before setting off that during the cold phase, i.e. over the first four kilometers, the engine consumes fuel at a much higher rate – at times corresponding to between 30 and 40 liters per 100 kilometers.

2. Anticipate. An anticipatory driving style makes for effective fuel savings.

3. Benefit from the overrun cutoff. When approaching traffic lights or an obstacle, the overrun cutoff helps save fuel. The fuel supply is interrupted when the accelerator pedal is released.

4. Shift up early. The higher the gear, the lower the engine speed and fuel consumption. So shift up briskly through the gears.

5. Simply switch off. Savings potential is also provided by deactivating the engine at traffic lights, railroad crossings, and in traffic jams. Switching off already saves fuel when the vehicle is stationary for more than ten seconds.

6. Wind traps. Every kilogram of unnecessarily stowed luggage is ballast that increases a vehicle’s weight and thus also its fuel consumption. Open windows, soft-tops, andsunroofs,alongwithroofracks,giverisetoturbulence and especially at higher speeds increase fuel consumption by up to five percent.

7. Good maintenance pays off. Only a well-adjusted engine yields optimal fuel consumption. Regular mainte- nance checks should thus be a matter of course. And don’t forget to check the tire pressure.

 

Whether it be in comfort, safety, design, or drive technology – we have set new standards in every decade.

The most outstanding innovations in drive systems technology include the first diesel car of 1936, the Mercedes-Benz 300 SL introduced in 1954 as the first series-production automobile with gasoline direct injection, and the first series-produced car with turbodiesel engine (1977). Common-rail direct injection (CDI, 1997) and BLUETEC, the technology for the world’s cleanest diesel vehicles, are further milestones of drive systems technology.

Daimler has repeatedly made pioneering achievements – in alterna- tive drive systems as well. The first passenger cars and commercial vehicles with battery-electric or hybrid drive came into existence in 1906, but they could not hold their own against the increasingly powerful internal combustion engine and the benefits of its extensive operating range. Development of electric drive was taken up once more in the late 1960s. NECAR 1, the first automobile with fuel cell drive, was launched in 1994. Since that time, the development of this technology has made enormous progress: Locally emission-free fuel cell and electric vehicles have proved their worth in fleet trials and are already on the roads today in small production series. Daimler’s “electrifying” pioneering achievements also include the Mercedes-Benz S 400 HYBRID (2009) – the first hybrid model with lithium-ion battery – and the Mercedes-Benz Vito E-CELL (2010), the first series-produced fully electric van.

 

 

Part 1: http://www.germancarforum.com/the-road-to-emission-free-driving-by-daimler-part-1-of-5
Part 2: http://www.germancarforum.com/the-road-to-emission-free-driving-by-daimler-part-2-of-5
Part 3: http://www.germancarforum.com/the-road-to-emission-free-driving-by-daimler-part-3-of-5
Part 4: http://www.germancarforum.com/the-road-to-emission-free-driving-by-daimler-part-4-of-5
Part 5: http://www.germancarforum.com/the-road-to-emission-free-driving-by-daimler-part-5-of-5

 

Source [Daimler]

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