Autocars: Mercedes-Benz
Showing posts with label Mercedes-Benz. Show all posts
Showing posts with label Mercedes-Benz. Show all posts

Friday, April 3, 2009

Mercedes-Benz F-Cell Roadster: A symbiosis of high-tech and tradition

The theme of "sustainable mobility" is at Mercedes-Benz is an integral part of vocational training. So dedicated professionals in a cross-project, the apprentices of Daimler AG in Sindelfingen Mercedes factory and built a roadster with a fuel cell propulsion. Name: F-Cell Roadster.
The Mercedes-Benz F-Cell roadster combines the latest technologies with the history of the automobile. In line with the Benz patent motorcar from 1886 is the vehicle with large wheels spokes. Moreover, the F-Cell Roadster style elements from various eras vehicle. These include for example the carbon seat shells with handmade leather as well as the striking, modeled on the Formula-1 racing cars designed front fiberglass.
The vehicle will be driven by drive-by-wire technology - the traditional steering wheel will be replaced by a joystick. For the drive provided by the zero-emission fuel cell system in the rear. With an output of 1.2 kW / hp 1.63 achieved the F-Cell Roadster, a maximum speed of 25 km / h and provides a range of up to 350 kilometers.
The two occupants enjoy the pure "wind". Before falling in too daring journey protect fold system as a replacement for doors. Looking at the photos, you must be careful however, not with his feet in the spokes of the front wheels to land. But that weighs the true lightweight, like a modern version of a mobile carriage seems, only 350 kilograms.
Approximately one year worked on a total of 150 trainees and Dual students in the design, development, assembly and completion of the F-Cell roadster. They were young in the fields of "motor vehicle mechatronics", "Model", "electronics", "coating technology", "Manufacturing Mechanics" and "product design" and "vehicle interior" part. The primary objective of the project was to investigate the issue of alternative drives in the training practical to integrate.

Tuesday, March 31, 2009

Mercedes-Benz SL 63 AMG: the risks and effects of a V8

A sound, which becomes addicted: Before the drug SL 63 AMG protect - if ever - be price or small blemishes. It is available without prescription for 145,240 euros at the Mercedes dealer on risks and side effects read the following Fahrbericht.
At a time when we ask ourselves, what sound setting in most future electric motors and other alternative drives on our roads will ensure, with the picks Mercedes SL 63 AMG to the great shock in terms of engine noise from fossil fuels from the V8 in the 525 bhp Roadster grumbled, bubbles and roars so seductive that the Gasfuß completely independent and instinctively the exhaust concert highlights new conducts.

Sound with addictive potential

The Symphony in SL Minor, Opus 63 is addictive, and if you only have once accustomed, sounds nothing like before. The V8 roar of the mighty 6.3-liter AMG engine sounds when compared to other V8 engines such as would provide a first audiophile CD at an exclusive high-end Dolby surround system to hear (SL 63), and then in a portable CD player from the 80s with ausgeleierten loudspeaker membranes play (other V8).

Other risks and side effects of the drug SL 63 AMG: The price of 145,240 euro, which many people at risk before the drug SL 63 AMG retains. Who is susceptible to the drug, could be to protect against the addiction some flaws in mind. For example, plastic, aluminum where we expected and at first glance even suspected - for example on the flanks of the exclusive roadster. Here Zierblenden indicate with whom you are dealing with. "6.3 AMG" but to ordinary plastic. This also applies to the knob of the air conditioning inside the SL.

Passers: Surprised and excited

But that's also already broadly in line with dissuasive arguments. The maximum would be provided by a plastic bicycle helmet protected convince at the traffic light next to me in the pedals and when driving off-V8, the staccato of my nose rümpft. That is at any rate, what I think of him briefly in the interior mirror perceive, before he was strampelnder point disappears on the horizon.

Those who opposed pleasurably and without fear bicycle helmet mobile enjoys life as a pedestrian or the SL 63 AMG Sound meets, listens rather surprised to enthusiastic. That depends entirely on the previous experience: the most passersby are surprised that there is no such thing on public roads at all there. Few others are written on their faces that they are informed of the existence of such cars knew, but never with a direct encounter have expected.

But no matter: Who is the SL 63 gently away from the traffic lights anfährt, already attracts the attention. Who is also the volume control (or "accelerator" called) aufdreht (or "passage"), does this course even more.

From Airscarf wind up bulkhead

What is the drug SL 63 AMG still on? Exterior looks very sporty potent SL from. Formula 1 leaves greet the sight of the arrow-shaped front apron or the diffuser at the rear. Overall, a consistent mix with the wrinkled quoting the new design language of Mercedes. Inside enjoy the noble ambience driver (Example: leather and carbon), the highest level of comfort (eg Airscarf "called warm air from the head restraints) and sporty driving experience (Example: Exact adjustable seats with plenty of lateral support).

The exit and electrically retractable wind deflector ensures almost no wind at open driven 200 km / h and more. Only the right upper arm reported higher, but still tolerable breeze in the cockpit. Who still open to closed switch wants to do this by pressing a button in 16 seconds Lively.

New 7-speed automatic

Turn the pilot on the AMG paddle. But who for a while the automatic mode of the new 7-speed gearbox has enjoyed, can safely forgo the Paddelei. The automatic transmission, called "Speed Shift MCT" works thanks to multi-clutch technology, transducers, and thus freely without slippage or traction with minimal interruption and switching pauses. The Schaltmodi range from "comfort points" to "particularly sporty" and "manually". Depending on the automatic mode at certain speeds, the gear stage. And the more sporty the mode dial, the shorter the switching times down to 100 milliseconds. As I said: Of course, the course should select the SL 63 AMG is not truly his.

Also enjoyed the pilot of a three ESP, on the electronic damper system ABC (Active Body Control ") or the so-called steering parameters: the servo assistance depends on the speed driven. Motto: The faster, more streamlined. Furthermore, the SL 63 AMG for großgewachsene occupants and plenty of luggage or souvenirs from the tour Roadster: 339 liters summarizes the trunk when the roof was still open at 235 liters driving. And the trick: Even if the roof is stowed in the trunk, you have to be unchecked baggage - that is in such folding roof constructions a notable exception.

Addictive potential in the state

What is still on the drug SL 63 AMG has to say: A side effect is not as bad as feared. In the test with plenty of sound orgies from the two double tailpipes, alternating with a comfortable cruising the average consumption was just under 14 liters. For a car with this performance impressive: 525 hp (386 kW), a torque of 630 Nm at 5.200/min., 0 to 100 km / h in 4.6 s - all this way, with a cylinder capacity not 6,3, but exactly 6208 liters.

At 250 km / h is an end to the tunneling. Power over nothing, because of the addictive powerful SL 63 AMG in the state shortly after the jump. The idle mumbling announced that it is equal to what your ears will give the following sound experiences have far more than the first noise already promised.

Risks and side effects

Conclusion: Most of the risks and side effects of the SL 63 AMG will be happy to purchase. Exceptional purchase price. The preserves most of us before this addiction. Happy Few, however, can the 145,240 euro is not deterred, and then they fail completely as antidotes.

Monday, March 23, 2009

Mercedes-Benz AMG SLS: A legend returns as a super sports car back

With the Mercedes-Benz AMG SLS sees a new super sports car the light of the world. It is the first vehicle developed independently of the performance brand of Mercedes-Benz. The SLS is the myth of the legendary Mercedes-Benz 300 SL from the 1950s to revive, as the legendary Ur-father of the SL-series is. Special features were the characteristic wing doors, the two power domes on the long bonnet and the gill-like air in the front fenders and we may be curious as to how this classic AMG features the SLS at the present time interpreted.

While the optics are not yet much to be seen, the first technical details now known. Already the Technology Package makes the ears sit up with excitement: aluminum spaceframe body with wing doors, a big 6.3 liter V8 with a front mid-engine 571 hp, a 7-speed dual-clutch gearbox in the transaxle arrangement and a sport suspension. The ideal weight distribution of 48 to 52 percent between the front and rear axle and the vehicle deep emphasis emphasize the uncompromising sports car concept further.

The design and development phase for the new super sports car launched in the last quarter of 2006. By the end of 2009, the vehicle testing will be completed. In spring 2010, the reinterpretation of the legendary Flügeltürers finally celebrate their launch.
Consequently, thanks to lightweight aluminum

The radical design of highly talented as driving super sports cars with wide and deep placed behind the front mid-engine provides the same proportions as the lightweight optimized bodyshell concept: presenting the first Mercedes-Benz and AMG is a car with the chassis and body are made of aluminum. This provides over traditional steel construction for a significant weight savings, as a glance at the desired DIN unladen weight of 1,620 kg without driver shows.

The completely newly developed carcass consists of an aluminum spaceframe. This exclusive design combines light weight with high strength, an uncompromising driving dynamics possible. Of course meets the aluminum space frame with all the requirements in terms of passive safety. Despite the low seating position allow the far-sih-opening doors provide convenient entry and exit.

Further developed AMG 6.3-liter V8 engine with 571 hp

The refined 6.3-liter V8 engine from AMG implements a maximum 571 hp at 6,800 rpm. In conjunction with its low vehicle weight is calculated as a power weight of 2.84 kilograms / horsepower. The maximum torque of 650 Nm achieved the eight-cylinder naturally aspirated engine at 4750 rpm. From 0 to 100 km / h accelerates the Hinged doors in just 3.8 seconds and finished his jacking expected only at 315 km / h. The intern called M159 High Speed V8 engine with an engine capacity of 6208 cc was compared with the M156-based engine completely revised.

Complex catalyst technology enables the performance of current and future exhaust emissions limits such as EU 5, LEV 2 and ULEV. Thanks to selective use of efficiency measures, the combined fuel consumption of the Mercedes-Benz AMG SLS is expected at around 13 liters Super Plus per 100 kilometers lie.

The most important measures to improve performance are a new intake manifold, the revision of the valve train and camshaft, the use of flow-optimized Stahlrohrfächerkrümmer dethrottling and the exhaust system dar. This approach has significantly improved cylinder filling reached, which causes an increase in performance.

The eight-cylinder to be agile to respond and pedal movements over the entire rpm range a more joy show strong rotation. With the shift to a dry sump lubrication maker reached a significantly lower position of the engine fitted in the vehicle. The resulting lowering of the vehicle gravity allows high transverse and strong driving dynamics.

Double-clutch gearbox in the transaxle arrangement

His exuberant strength of the V8 engine on a lightweight carbon driveshaft to the rear axle forward - similar to the C-Class DTM Renntourenwagen. The gear has its place in the rear axle (transaxle principle) and is about a so-called "Torque Tube" is fixed to the motor housing. The Torque Tube (Engl. "Torque = Torque," Tube "tube =) rotates a carbon shaft with engine speed. The advantages of this costly solution is the rigid connection between engine and gearbox and the optimum support of the emerging forces and moments.

For the transmission is a new dual-clutch gearbox with seven gears responsibility. The transmission is characterized by fast switching operations without interruption of tractive force. The drivers are four different Fahrprogramme of extremely comfortable to sporty and a Race Start function. Optimum traction while allowing the mechanical, in the compact gearbox integrated differential lock.

The chosen solution plus front mid-engine Transaxle layout provides an ideal weight distribution of 48 percent front to 52 percent rear. Through the installation position of the engine behind the front axle are the best conditions for a perfect driving dynamics with precise Einlenkverhalten, agility class, low inertia in the direction of spontaneous changes and excellent traction given. As standard, the Hinged door on a 3-stage ESP. The driver can also touch the three modes: "ESP On", "ESP Sport" and "ESP Off" is available.

In "ESP On" is specified when starting an unstable driving braking intervention at one or more wheels and a withdrawal of the engine torque. In "ESP Sport" allow the over-or under control interventions as well as the accompanying engine torque intervention higher driving conditions, such as the drift angle. Is "ESP Off" is activated, driving, no interference.

Ceramic composite brakes, and weight-optimized wheel

Shortest stopping distances even with the enormous burden promises high-performance braking system in composite technology. Optionally, there is a ceramic-composite brake system with larger dimensioned brake discs, for less unsprung masses and more braking performance guarantee. The ceramic brake discs are due to their higher hardness on an even higher temperature and also bribe her by about 40 percent lower weight.

Lightweight stand even with the wheels in Focus: Weight-optimized AMG light-alloy wheels in 9.5 x 19 inch front and 11.0 x 20 inch rear reduce unsprung mass and improve driving dynamics and suspension comfort. Exclusively developed for the AMG tires 265/35 R 19 (front) and 295/30 R 20 (rear) while ensuring the best grip.