<![CDATA[Jalopnik: mercedes s-class hybrid]]> http://tags.jalopnik.com/assets/base/img/thumbs140x140/jalopnik.com.png <![CDATA[Jalopnik: mercedes s-class hybrid]]> http://jalopnik.com/tag/mercedessclasshybrid http://jalopnik.com/tag/mercedessclasshybrid <![CDATA[2010 Mercedes S400 Hybrid: World’s Most Efficient Gas-Powered Luxury Car]]> Achieving an estimated 29 MPG combined while wafting its occupants between plastic surgeries in Miami, the 2010 Mercedes S400 Hybrid will be the world's most efficient luxury car. Well, with a gas engine that is.


The Press Release follows:

The 2010 Mercedes-Benz S-Class

Benchmark in the luxury segment

* S400 HYBRID: the first series-production Mercedes-Benz passenger car with
* hybrid drive and the world's first car with a lithium-ion battery
* Additional safety thanks to the latest driver assistance systems
* Modern, innovative design

After three years of the current S-Class, Mercedes-Benz is launching the restyled 2010 S-Class in August. With the very latest technology for even greater safety, as well as trailblazing innovations in comfort and drive technology, the Mercedes-Benz flagship is reasserting its leading position as the brand's innovation platform and benchmark for luxury sedans.

In the 2010 S-Class, Mercedes-Benz has improved the renowned safety level even further with a unique combination of innovative camera and radar-based driver assistance systems. These include Adaptive Highbeam Assist, Lane Keeping Assist and the PRE-SAFE® brake system linked to the proximity regulating radar, which intervenes autonomously before an impending rear-end collision and acts like an invisible crumple zone. Other innovations in the 2010 S-Class include the ATTENTION ASSIST driver drowsiness monitor and Active Body Control with automatic crosswind stabilization.

The new S400 HYBRID is also celebrating its debut. As the first series-production Mercedes-Benz passenger car with hybrid drive, this S-Class model is the world's most economical luxury car with a gasoline engine. Its estimated combined fuel consumption of 29 miles per gallon sets a new worldwide benchmark in this vehicle segment.

"The S400 HYBRID is a major milestone on our road towards emission-free mobility", says Dr. Dieter Zetsche, Chairman of Daimler AG and CEO of Mercedes-Benz Cars. "Our first series-production hybrid passenger car exemplifies the long-term, sustainability-oriented development strategy of Mercedes-Benz, which has a clearly defined aim: economical and environmentally compatible premium automobiles, with no compromises in terms of safety, comfort and a superior driving experience." The S400 HYBRID is also a trailblazer where energy storage is concerned: the new luxury sedan is the first series production car in the world to be equipped with the very latest lithium-ion battery technology. "In this way the S-Class and the Mercedes-Benz brand are doing important pioneering work for the electrification of the automobile."

The new hybrid model combines a low fuel consumption and a high level of environmental compatibility with superior performance: the internal combustion engine and the hybrid module develop a combined output of 295 hp, and a combined maximum torque of 284 lb-ft. (The electric motor contributes 20 hp and 118 lb-ft to the powertrain).

With 270,000 units sold world-wide since its launch, the W 221-series S-Class is the world's most successful luxury sedan, and seamlessly continues the success story of the flagship model in the Mercedes-Benz lineup. Since 1951, when the model 220 began the direct lineage of the S-Class, Mercedes-Benz has delivered around 3.3 million passenger cars from this model series to customers.

The U.S. line-up includes the S400 HYBRID, the 382-hp V8-powered S550 and all-wheel-drive S550 4MATIC as well as the high-performance 518-hp S63 AMG. V12 offerings include the 510-hp S600 and the top-of-the-line 604-hp S65 AMG. The 2010 S-Class will be in U.S. showrooms beginning in August.

Unique combination of driver assistance systems

An absolutely unique combination of ultra-modern assistance and protection systems is available for the 2010 S-Class. Many of these systems are also available for the new E-Class, which debuts this summer. The new assistance systems turn the models in the E and S-Class into "intelligent" partners for their driver. The car is able to "see", "feel", respond reflexively and act autonomously to prevent accidents or mitigate their effects. Mercedes-Benz also uses cameras in these systems - these are able to look well ahead, monitor the car's surroundings and interpret typically critical situations. One example is the optional Adaptive Highbeam Assist. This system recognizes oncoming or leading vehicles and then controls the headlamps to ensure the best possible beam range without dazzling other drivers on the road.

The Sindelfingen-based engineers have also developed Night View Assist further – Night View Assist PLUS is equipped with a special pedestrian detection function: as soon as the system detects pedestrians ahead of the car, they are highlighted on the display to make it easier for the driver to see them.

Lane Keeping Assist is another system that "looks ahead" for even safer driving. The system's computer is able to recognize lane markings by evaluating the contrasting images of the road surface and the markings. If the vehicle leaves the lane unintentionally, the driver is warned by short vibrations of the steering wheel. Unlike conventional systems of this kind, the Mercedes-Benz system is able to evaluate the driver's activities as well and can reliably ascertain whether the car is leaving its lane intentionally or not. Therefore, there is no warning if the driver accelerates before overtaking or merging onto a highway, brakes heavily, or enters a curve.

Drowsiness detection on the basis of more than 70 parameters

With the driver drowsiness monitor, ATTENTION ASSIST, the 2010 S-Class has very sensitive monitors for the attention level of its driver and can warn them in time when they becomes drowsy. This innovative technology continuously monitors more than 70 different parameters. Once the high-resolution steering angle sensor recognizes the steering behavior that typically indicates the onset of drowsiness, a warning signal is sounded and "ATTENTION ASSIST. Time for a break!" appears in the instrument cluster.

Mercedes-Benz has also improved the long and medium-range radar used by Brake Assist PLUS and DISTRONIC PLUS adaptive cruise control. Both systems assist the driver during emergency braking. If the driver is distracted and fails to recognize the immediate danger of a rear-end collision, the PRE-SAFE®Brake is able to intervene and brake the vehicle independently. For the 2010 S-Class the developers in Sindelfingen have improved this system even further: if the driver fails to react even after an acoustic and visual warning, the PRE-SAFE®Brake is able to activate the maximum braking pressure around 0.6 seconds before what is now recognized as an unavoidable accident — an emergency braking action that can significantly mitigate the severity of the impact. The system therefore acts as something like an "electronic crumple zone".

Detailed fine-tuning has also given the 2010 S-Class better driving dynamics and agility. This is in large measure due to the new electro-hydraulic Direct-Steer system, where the ratio varies with the steering angle.

New: Active Body Control (ABC) compensates for crosswinds

Mercedes-Benz developers have also added a crosswind stabilization function to Active Body Control (ABC) suspension. For this purpose ABC uses the yaw rates and lateral acceleration sensors of the Electronic Stability Program ESP® to vary the wheel load distribution via the ABC spring struts, depending on the direction and intensity of the crosswind. This enables the effects of crosswinds to be compensated, or reduced to a minimum in the case of strong gusts.

S400 HYBRID: the world's most economical gasoline-engined luxury sedan

The 2010 S-Class also plays a pioneering role where its drive system is concerned: "The modular hybrid concept sets the new standard for efficient, clean and superior motoring pleasure in all vehicle segments, and is therefore a driving force for the premium automobile of the future", says Dr. Thomas Weber, the member of the Daimler AG Executive Board responsible for corporate research and development at Mercedes-Benz Cars.

The new S400 HYBRID is the first car to be designed on the basis of the highly intelligent modular concept developed by Mercedes-Benz to give its customers the best hybrid solution for their requirements. The S400 HYBRID, which is a true technological trendsetter with this concept, features all the necessary
components:

* a compact yet powerful electric motor
* the accompanying operating electronics
* a modern lithium-ion storage battery with a high capacity.

The compact hybrid module combines the hybrid functions of an automatic start-stop system and energy recuperation. In several respects this means that the S400 HYBRID sets a new standard in its class, making it the world's most economical luxury sedan with a gasoline engine. Dr. Thomas Weber: "This demonstrates that Mercedes-Benz is able to combine sustainable mobility with the claim of automotive premium positioning - with vehicles that are efficient and environmentally compatible, without having to accept compromises in terms of safety, comfort and superior driving refinement. At the same time the S400 HYBRID dispels the myth that sustainable mobility is only possible with small cars."

The combined fuel economy for the S400 HYBRID is estimated at 29 miles per gallon, a 30-percent increase over the S550.

This figure is accompanied by a truly superior performance potential: the modified 3.5-liter gasoline engine develops 275 hp, while the electric motor generates 20 hp and a starting torque of 118 lb-ft.

The new Mercedes-Benz S400 HYBRID is based on a V6 version of the S-Class and features an extensively modified drive train. This encompasses a further development of the 3.5-litre V6 petrol engine, an additional magneto-electric motor, the 7G-TRONIC seven-speed automatic transmission specially configured for the hybrid module, the necessary operating and control electronics, the transformer and a high-voltage lithium-ion battery.

During braking the electric motor acts as a generator and is able to recover kinetic energy by a process known as recuperation. During this process the electric motor works together seamlessly with the engine brake of the internal combustion engine and the conventional wheel brakes. The recuperated energy is stored by a compact but efficient lithium-ion battery in the engine compartment and retrieved when required. Major advantages over conventional nickel/metal hydride batteries include a higher energy density and greater electrical efficiency combined with more compact dimensions and a low battery weight. Thanks to space-saving installation in the engine compartment, the trunk capacity and generous interior dimensions remain unchanged. The hybrid module also has a
convenient start-stop function.

Comfort: the latest multimedia technology

With its 6.5-inch color display screen, the standard COMAND system with GPS navigation has been refined with a forty-gigabyte hard drive as well as an integrated six-disc CD-DVD player and a Music Register for around 1,000 MP3 tracks. HD Digital Radio and Zagat Restaurant ratings are also available.

A new media interface makes it easier than ever to connect an iPod, USB stick, memory card and other devices. Music tracks can be indicated on the COMAND display located on the center console as well as a smaller display in the center of the instrument cluster and they can be selected with the buttons on the multi-function steering wheel.

Any Bluetooth-enabled cell phone will work hands-free – even with the phone in a pocket or purse, the audio is automatically muted when a call is made or received and callers are heard over the audio system speakers. In addition, phone book info can be displayed by the COMAND system.

Design: a muscular, self-assured presence

The modified design reflects the effortless superiority and power of the S-Class sedan. It is characterized by the more pronounced arrow-shape of the radiator grille, plus a new front bumper with a discreet light-catching contour and a chrome strip below the cooling air intakes. Exhaust tailpipes of all S-Class variants are visibly integrated into the rear bumper. The headlamps incorporate bi-xenon technology and LED indicators on the lower edge of the headlamp as standard. Eye-catching highlights on the S400 HYBRID are provided by the two round foglamps and daytime driving lights on each side of the front bumper. Their location at the outer edges of the bumper underlines the muscular character of the S400 HYBRID.

An even more dynamic look is provided by the Premium 1 package, which is standard on the majority of the model line and includes striking LED arrays for daytime driving lights, indicators and marker lights. They lend an unmistakable day-and-night design to the front end. The rear end is characterized by tail lights in an innovative LED design. Here too, a total of 52 LEDs in the form of a double-C form an unmistakable light signature.

Mercedes-Benz also makes more use of light as a styling element in the interior via the standard ambient lighting, now with a choice between three lighting moods: solar (amber), neutral (white) and polar (ice-blue).

Interior: carefully selected materials and first-class finishing

The multifunction steering wheel of the S-Class has also been modified by the Mercedes-Benz designers: the rim and airbag module are lined with soft premium leather as standard. The new, flatter airbag module also lends a sporty touch to the multifunction steering wheel. Mercedes-Benz engineers have also implemented specific aerodynamic measures to reduce wind noise, which also contributes to greater traveling comfort.

The 2010 Mercedes-Benz S-Class will be in U.S. showrooms beginning in August 2009.

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<![CDATA[Mercedes-Benz S400 BlueHYBRID Provides Smugness For Very Serious German Businessmen]]> The Mercedes S400 BlueHYBRID (note the use of all caps here, to let people know IT'S A HYBRID!) takes the exquisite S-Class and makes it into a Lexus LS600hL-killing eco-smug limo. Starting with a 3.5-liter V6, a hybrid drivetrain with a 20 HP electric motor and lithium-ion batteries specially developed for automotive use are added. Altogether it makes about 299 HP and produces just 190 grams of CO2 per kilometer...the best rating in the world for a car this big. For more details, or if you're looking for help getting to sleep, check out the very full press release after the jump.


Mercedes-Benz S 400 BlueHYBRID: The CO2 champion in the luxury class, with an efficient hybrid drive system and lithium-ion technology

Mercedes-Benz is launching its first passenger car model equipped with a hybrid drive system in summer 2009 - the S 400 BlueHYBRID. The combination of a modified V6 petrol engine and a compact hybrid module makes the S 400 BlueHYBRID the world's most economical luxury saloon with a spark-ignition engine. The NEDC combined fuel consumption is a mere 7.9 litres per 100 kilometres. This makes for the world's lowest CO2 emissions in this vehicle and performance class - just 190 grams per kilometre. These exemplary figures go hand in hand with assured performance. The 3.5-litre petrol engine develops an output of 205 kW/279 hp, the electric motor generates 15 kW/20 hp and a starting torque of 160 Nm. The result is a combined output of 220 kW/299 hp and a combined maximum torque of 385 newton metres. Moreover, the new S 400 BlueHYBRID is the first series-production model to be equipped with a particularly efficient lithium-ion battery specially developed for automotive use. This is another major contribution by Mercedes-Benz to the electrification of the car.

The new Mercedes-Benz S 400 BlueHYBRID is based on the S 350, and features an extensively modified drive train. This encompasses a further development of the 3.5-litre V6 petrol engine, an additional magneto-electric motor, the 7G-TRONIC seven-speed automatic transmission specially configured for the hybrid module, the necessary operating and control electronics, the transformer and a high-voltage lithium-ion battery.

The compact hybrid module is a disc-shaped electric motor that also acts as a starter and generator. The system offers a double benefit, as it both helps to save fuel and increases driving enjoyment. This is partly due to the booster effect of the electric motor, as it powerfully backs up the petrol engine with a maximum additional torque of 160 newton metres during the high-consumption acceleration phase. The driver benefits from the combined action of these two units in the form of even more impressive torque characteristics and smooth, effortlessly superior acceleration.

The hybrid module also has a comfortable start/stop function, which switches the engine off when the vehicle is at a standstill - for example at traffic lights. When it's time to move off again, the electric motor almost imperceptibly restarts the main power unit. This likewise makes a contribution to fuel economy and environmental protection: because the engine restarts first time, and practically instantly, emissions are also minimised during the starting phase.

When the vehicle is braked the electric motor acts as a generator, and is able to recover braking energy by a process known as recuperation. Working in finely tuned partnership, the electric motor supplements the braking effect of the petrol engine and the wheel brakes to deliver a smoothly progressive braking action. The recuperated energy is stored in a compact yet highly efficient lithium-ion battery in the engine compartment, and made available when required. This complex system is managed by a high-performance control unit, which is likewise located in the engine compartment.

A milestone on the road to electrification

The centrepiece of the modular, very compact and highly efficient hybrid drive system is the new high-voltage lithium-ion battery, which was specially developed for automotive use and is the first such unit worldwide to be introduced in a series-production vehicle. In this way Mercedes-Benz is making a trailblazing contribution to the electrification of the car, with the S-Class once again playing the role of the technological trendsetter.

Major advantages over conventional nickel/metal hydride batteries include a higher energy density and better electrical efficiency, together with more compact dimensions and a lower weight. Thanks to space-saving installation in the engine compartment, where it replaces the conventional starter battery, the generous interior space and boot capacity of the S 400 remain unchanged. The lithium-ion battery not only stores energy for the electric motor, but is also connected to the 12-Volt onboard network via the transformer to supply power to other standard consumers such as the headlamps and comfort features. The completely newly designed battery system consists of the cell block with its lithium-ion cells and the cell monitoring system, the battery management function, the high-strength housing, the cooling gel, the cooling plate, the coolant feed and the high-voltage connector.

Optimised thermal efficiency lowers the engine's fuel consumption

The 3.5-litre V6 petrol engine with variable valve control has been throughly re-engineered and improved. In the process the development engineers made use of the advantages offered by the Atkinson principle,where the expansion phase is longer than the compression phase. The intake valve is kept open slightly longer between the intake and compression phases, which improves the engine's thermal efficiency while reducing the specific fuel consumption and untreated emissions. A new cylinder head, different pistons and a modified camshaft with different camshaft control increase the output by 5 kW/7 hp to 205 kW/279 hp - while reducing fuel consumption at the same time.

Especially on rural journeys and on motorways, the S 400 BlueHYBRID achieves a further efficiency improvement by moving the so-called operating point of the petrol engine to produce a lower specific fuel consumption. The extremely high start-off torque made possible by the boost effect of the electric motor gives the driver a particularly exhilarating feeling of powerful acceleration, while fuel consumption and emissions are reduced.

The electric motor improves efficiency

The compact, disc-shaped electric motor, which is space-savingly installed in the torque converter housing between the engine and the 7G-TRONIC seven-speed automatic transmission, improves efficiency even further. This is a 3-phase AC external rotor magneto motor, which develops a peak output of 15 kW/20 hp and a starting torque of 160 newton metres with an operating voltage of 120 Volts.

This compact motor also acts as a starter and generator, adopting the functions of both these conventional ancillary units.

Sophisticated interaction with the internal combustion engine makes numerous additional functions possible that positively influence the emissions and agility of the S 400 BlueHYBRID in equal measure. Moreover, this disc-shaped motor effectively dampens torsional vibrations in the drive train, thereby further reducing noise and vibrations in the interior. The result is even more ride comfort for both driver and passengers.

"Boost" effect for even more driving pleasure

The overall system offers extensive benefits: firstly by helping to save fuel, and secondly by increasing driving pleasure with the help of the "boost" effect, where the electric motor gives powerful assistance to the petrol engine with its maximum torque of 160 newton metres right from the beginning of the fuel-intensive acceleration phase. This means that the hybrid drive system of the S 400 BlueHYBRID moves off powerfully even from very low engine speeds, as the torque curve impressively confirms. The additional torque of the hybrid module also has a consistently positive effect during subsequent acceleration phases. In all driving situations, the driver therefore benefits from the interaction between the two units in the form of powerful responsiveness and muscular torque - but without an increased fuel consumption.

The S 400 BlueHYBRID accelerates from zero to 100 km/h in 7.2 seconds, and reaches an electronically governed top speed of 250 km/h. The S 400 BlueHYBRID betters the already very favourable NEDC fuel consumption of the conventionally powered S 350 by up to 2.2 litres per 100 kilometres. CO2 emissions are reduced by 21 percent.

The start/stop function already saves fuel when rolling to a stop

In addition the hybrid module features an extremely comfortable and efficient start/stop function, which already switches the engine off when the vehicle is rolling to a stop at less than 15 km/h, for example before stopping at traffic lights. When it's time to move off again, the electric motor immediately and imperceptibly restarts the main engine as soon as the driver releases the brake pedal or operates the accelerator. This likewise contributes to fuel economy and environmental conservation: as the engine restarts practically instantly, emissions are also minimised during the starting phase. The vibrations and jolts that are unavoidable when starting with a conventional starter are also reduced to a minimum.

Steering and climatic comfort remain unchanged, as both the steering servo pump and the refrigerant compressor are electrically powered. Both systems therefore continue to operate even when the vehicle is at a standstill with the engine automatically switched off. The intelligent control logic is able to detect whether the driver is executing a turning or parking manoeuvre. In this case the automatic start/stop function is temporarily deactivated, so that these manoeuvres can be carried out in comfort.

Every braking action generates electric power for the battery

When the vehicle is braked, the electric motor acts as a generator and uses a process known as recuperation to convert the kinetic energy into electrical energy. This energy is stored in the compact yet highly efficient lithium-ion battery, and made available when required.

In the process the electric motor assists the engine braking effect of the internal combustion engine in two smooth, seamless stages: In stage one, on the overrun with no braking action, the electric motor acts as a generator and begins to recuperate energy. Stage two commences as soon as the driver lightly operates the brake pedal: the generator output is then increased proportionally, and perceived as heavier deceleration by the driver. Only when more brake pedal pressure is applied are the wheel brakes activated in addition to recuperation. In this way more electrical energy can be generated, while saving wear and tear on the hydraulic braking system at the same time. To make the best possible use of this double benefit, Mercedes engineers also developed a new braking system with a new brake pedal module for the S 400 BlueHYBRID.

Cleverly located control electronics

Dedicated control electronics are required to operate the 3-phase AC electric motor in the 120-Volt high-voltage DC network. The current converter is accommodated in the space formerly occupied by the starter. As the control electronics heat up as a result of electric currents measuring up to 150 amps, the system is equipped with its own, additional low-temperature cooling circuit.

Mercedes-Benz engineers have accommodated the transformer in the right front wheel arch, where it facilitates the exchange of energy between the 120-Volt high-voltage network and the 12-Volt onboard network - and also allows the option of emergency starting with jump leads if the standard battery should lose its charge. To ensure a consistently high level of electrical efficiency, the transformer is likewise cooled by a low-temperature circuit. The 12-Volt lead/acid battery is installed in the boot, and not only supplies the standard consumers but also the monitoring system for the high-voltage components with energy. Thanks to its interaction with the lithium-ion battery, it is considerably smaller in size and lighter than usual.

Tried-and-tested automatic transmission with a new configuration

Mercedes-Benz developers also adapted the well-proven 7G-TRONIC automatic transmission to suit the hybrid drive, with newly programmed software for the transmission management system. A newly developed auxiliary oil pump ensures reliable lubrication of the transmission even during phases when the internal combustion engine is switched off.

This complex system is managed by the modified high-performance engine control unit. This incorporates extensive functions, and distinguishes between operating conditions such as city traffic, rural journeys, motorway driving or slow manoeuvring.

Hybrid status is shown in the instrument cluster

The driver is also able to monitor the status of the hybrid drive system visually. The instrument cluster has a separate, centrally positioned, display showing the energy flow during boost and recuperation phases, as well as the battery charge status.

Seven-stage safety concept in addition to the Mercedes-Benz standard

As is usual at Mercedes-Benz, the development engineers gave safety aspects their very special attention. Know-how incorporated into the series-production car included long years of Daimler research experience with fuel-cell technology. The challenge lay in not only complying with all the worldwide and in-house legal crash test requirements, but also in ensuring the greatest possible safety for the electrical components. This safety system already applies in production, includes workshop personnel during servicing and maintenance, and also takes the emergency services into account when passengers need to be recovered following an accident.

Accordingly the hybrid technology of the S 400 BlueHYBRID is equipped with an extensive 7-stage safety concept.

1. In the first stage all the wiring is colour-coded to eliminate confusion, and marked with safety instructions. This prevents assembly errors in production, and makes the regular quality checks easier to carry out.

2. The second stage comprises comprehensive contact protection for the entire system by means of generous insulation and newly developed, dedicated connectors.

3. As part of the third stage, the world's first lithium-ion battery to be used in a series-production model has been given a whole package of carefully coordinated safety measures. This innovative battery is accommodated in a high-strength steel housing, and also secured in place. Bedding the battery cells in a special gel effectively dampens any jolts and knocks. There is also a 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.

4. The fourth stage of the safety concept includes separation of the battery terminals, individual safety-wiring for all high-voltage components and continuous monitoring by multiple interlock switches. This means that all high-voltage components are connected by an electric loop. In the event of a malfunction the high-voltage system is automatically switched off.

5. Active discharging of the high-voltage system as soon as the ignition is switched to "Off", or in the event of a malfunction, is part of the fifth stage.

6. During an accident, the high-voltage system is completely switched off within fractions of a second (stage six).

7. As the seventh and last stage, the system is continuously monitored for short circuits.

Thanks to its compact dimensions and modular design, the additional weight of the overall system is only 75 kilograms - including the comprehensive safety systems. The superior driving experience for which a Mercedes is known is therefore ensured by this trailblazing and very versatile technology, which can be used for practically all Mercedes-Benz model series. Moreover, the payload remains unchanged at 595 kilograms.

The intelligent high-performance engine management system responds very sensitively to different driving conditions, and optimally configures the drive system for the relevant application, ensuring that both fuel consumption and emissions are kept to the lowest possible level.

* At standstill the petrol engine is usually switched off, and therefore consumes no fuel. The electric drive of the refrigerant compressor and steering servo pump allows uninterrupted operation of the air conditioning and power steering. Comfort is in no way compromised, and is at the same high level as in all S-Class models.

* Moving off and accelerating away gently remains a smooth and comfortable procedure. A driver who kicks down the accelerator for a brisk start benefits from the boost function of the electric motor, which produces considerably more dynamic acceleration.

* At constant speeds the intelligent electronics recognise situations such as relaxed motorway stretches, and automatically adjust the load point of the internal combustion engine to achieve a lower specific fuel consumption, thereby helping to save fuel and reduce emissions.

* When rolling to a stop the recuperation function is activated as soon as the drive is interrupted in any way (foot off the accelerator, engine braking). Once the vehicle speed falls below 15 km/h, the petrol engine is automatically switched off.

* If the driver brakes using the brake pedal, the electric motor initially begins to convert the vehicle's kinetic energy into electrical energy. In this case the electric motor acts as a generator, storing the kinetic energy as electrical energy in the lithium-ion battery. This process feels like a stronger engine braking effect to the driver. The conventional disc brakes at the wheels are not yet employed, saving wear and tear. The disc brakes are only activated if the driver applies heavy pressure to the brake pedal, braking the car together with the engine brake and recuperation.

* Once the driver selects "R" (reverse) in the 7G-TRONIC automatic transmission when manoeuvring, this automatically activates the Manoeuvring mode and prevents the start/stop function from switching off the engine at short, frequent intervals.

* The advantages of the hybrid drive system really come into their own in city traffic, with frequent stops at red traffic lights. Already switching off the petrol engine as the car frequently coasts to a stop significantly lowers the fuel consumption and emissions, while the long recuperation phases increase the battery charge. The electric motor ensures particularly comfortable and rapid restarting when the start/stop function is active.

* On rural roads there are frequent changes between boost, constant speed and recuperation phases. Depending on the nature of the route, large quantities of recuperation energy are available to reduce fuel consumption and emissions. The more braking and acceleration phases there are, the better: uphill and downhill gradients, as well as winding, dynamic stretches, make for the largest savings.

* The hybrid effect is inherently less important on motorways, however thanks to specific modifications to the V6 petrol engine and the 7G-TRONIC automatic transmission, the driver is also able to achieve significant fuel savings and correspondingly lower emissions on fast road stretches like these.

The S 400 BlueHYBRID is produced at the Sindelfingen plant, together with the other S-Class models. The petrol engine, 7G-TRONIC automatic transmission and electric motor are first put together to form a hybrid module, then delivered to the production line as a unit. The market launch in western Europe is planned for June 2009; China is expected to follow in August 2009 and the USAin September 2009.

Modular technologies for the environmentally friendly future of the premium car

The new S 400 BlueHYBRID exemplifies the strategy of Mercedes-Benz, whose declared aim is to offer the brand's customers economical and environmentally compatible premium cars - without compromising in terms of typical brand attributes such as safety, comfort and a superior driving experience.

Major areas of development focus include modular drive technologies, which are used on a stand-alone basis or in combination depending on the vehicle class, operating profile and customer requirements - Mercedes-Benz has already described how this applies to the product portfolio in its "Road to the Future". In this context Mercedes-Benz also provides an outlook on the future of the internal combustion engine, with the innovative DIESOTTO engine in the F 700 research car.

Dedicated solutions for different requirements

The requirements for the cars of the future are complex and multi-facetted. This is because the world population, and therefore the demand for mobility, are set to increase drastically over the next few decades. At the same time the world's natural resources are becoming increasingly scarce, and therefore more and more expensive for both consumers and car manufacturers. Depending on the world region, there are also sometimes very different legal requirements with respect to the environmental compatibility of vehicles. Examples include the environmental zones already established in many European cities, or the legally prescibed quotas for emission-free vehicles in California.

These developments are already having a noticeable effect on customer behaviour. In addition to economic factors - above all increasing fuel prices - the environmental compatibility of a car is becoming increasingly important as a buying criterion. What is more, the day-to-day driving requirements of customers are becoming more and more individual and distinctive: drivers covering long rural distances have different requirements from those who mainly or even exclusively drive in densely populated urban areas.

In the view of Mercedes-Benz, there is therefore no single technology that will provide the ideal solution for sustainable mobility in the future. Instead the company offers versatile, tailor-made solutions to meet these very varied requirements. The individual technologies deliver their benefits in terms of optimal fuel consumption and emissions in the specific areas of application concerned. The approach taken by Mercedes-Benz envisages vehicle concepts with modular drive technologies, which ensure that customer benefits and environmental compatibility are always jointly emphasised.

Roadmap for sustainable mobility

The corporate development strategy is aimed at safeguarding the leading position in the premium segment on a lasting basis. To this end three areas of emphasis were defined in the roadmap for sustained mobility:

* Vehicle optimisation with the latest internal combustion engine technology - for example by downsizing, high-pressure charging, direct injection and the environmentally friendly diesel technology BlueTEC - as well as specific vehicle improvements in the areas of aerodynamics, lightweight construction and energy management (BlueEFFICIENCY), for example.

* Further efficiency improvements by means of need-related hybridisation in various development stages - from the start/stop function to the two-mode hybrid operating under electric power alone.

* Locally emission-free driving with fuel-cell and battery-powered vehicles.

The company is also actively involved in the development of clean and alternative fuels that do not compete with the production of foodstuffs - particularly in SunDiesel, which is obtained from plant waste.

An intelligent mix of drive systems as a solution for the mobility of the future

Mercedes-Benz has already brought numerous answers to the challenges of tomorrow to market. The most recent examples are the BlueEFFICIENCY models in the A-Class, B-Class and C-Class, the natural-gas-powered B 170 NGT and the powerful yet economical and clean BlueTEC SUVs, which were first introduced into the US market this year. A mix of modular drive systems, from the latest internal combustion engines with BlueTEC or direct injection, with or without hybridisation, right up to locally emission-free battery and fuel-cell-powered vehicles, provides all the conditions that will enable Mercedes-Benz to offer its customers need-related mobility to the brand's customary high standard into the long-term future.

[via eMercedesBenz]

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