0 The new Mercedes-Benz S-Class: Multimedia features - Communication centre and concert hall

A completely new multimedia generation with intuitive operation and particularly tangible functions thanks to visualisation and animations celebrates its debut in the new S-Class. Other innovations include the multi-user system, which allows independent access to the media sources of the entertainment system from any seat. The new S-Class is also the first saloon car to be equipped with the unique Frontbass system as standard. With this system, the interior space in the bodyshell's cross-members and side members is used as a resonance chamber for the woofers. A 3D surround sound system is available on request.

Several hundred developers worldwide contributed to the new Mercedes-Benz multimedia generation, compiling more than 30 million lines of programming. The centrepiece of the new COMAND Online system is the Intel Atom, a processor whose performance fully equals that of components in the latest laptops.

As a completely new feature, the developers have made the individual functions of the communication systems more tangible with on-screen visualisation and animations (see "Control and display concept" section). The user is also able to adapt what is shown in the central display to their own requirements. With the exception of the navigation map (which always fills the complete display area), the central display is divided into a main area (2/3 on the right of the screen) and an additional area (1/3 on the left side of the screen). In standard configuration the additional area shows supplementary information about the selected main application, e.g. if the radio function is active, the artist and song title are shown, or the current channel in the case of TV.

It is also possible to permanently show preferred contents in the additional area (except when the full navigation map is active). One can select a small navigation map, fuel consumption display, data connection display or entertainment information, for example.

In addition to this improvement in operating convenience, numerous new functions extend the multimedia options available, and transform the S-Class into a communication centre or a concert hall as required.

The interactive presentation of content is a prominent new feature of the navigation function. The new navitainment functions include an animated compass, the "Driveshow" for passenger information as in an aircraft, and the display of Google Maps on the head unit and in the rear. Information on the traffic situation is shown with hatched lines (rather than with vehicle silhouettes as before). Thanks to real-time traffic information, the navigation system is also better informed about the situation on the roads. Traffic data are now provided by the "Live Traffic Information" service. Unlike the previous data sources TMC and TMCpro, whose data are received by radio, "Live Traffic Information" uses a fast internet connection and is therefore particularly up-to-date.

As another new feature, a key word search can be used to enter destinations: only a few letters need to be entered, and the system will automatically display a choice of appropriate town/street combinations and possible points of interest. The letter combinations or key words can even contain spelling mistakes.

Example: if the driver enters STUT and BAD, the system will suggest 'Stuttgarter Strasse' in Bad Friedrichshall, 'Badstrasse' in Stuttgart and the 'Freibad Möhringen' swimming pool in Stuttgart. The entered key words are visually highlighted in the display of search results.

In the radio function the favourite stations can now be saved to an individually organised preset list for all wavebands (DAB, FM, AM) rather than to a general autostore function. Individual stations can then be called up using the favourites function. The "Song tagging" function is likewise useful: songs just played in the vehicle can be flagged and then downloaded to a mobile device via iTunes and the internet connection.

The player is now able to recognise mixed tracks, i.e. video and audio files. Videos are shown as a preview in a small, animated area, and can be enlarged to full-screen format. The function "Play similar titles" suggests songs similar to the one currently playing, accessing the CD, Music Register or a connected source. Also new are the Coverflow display, the album cover search and the Picture Viewer as a slideshow.

"Telephone module with Bluetooth®" is standard equipment with the COMAND Online system. This supports the connection of the mobile phone to the vehicle via a standardised Bluetooth® interface. In addition "Convenience telephony" can be ordered as an optional extra by way of a pre-installation using a universal phone interface, whereby the mobile phone can be connected via a cradle in the centre console. Suitable cradles for various mobile phones are obtainable from Mercedes-Benz Accessories.

"Business telephony in the rear" with a hands-free function is optionally available for passengers in the rear. Connection of the mobile phone to the rear unit is likewise via Bluetooth®. Pre-installation with a universal phone interface is also possible for the rear. The telephony via the COMAND Online system is networked with the "Business telephony in the rear". Calls can therefore be conveniently transferred between the driver and the rear, and functions such as call waiting or conference are also available. Business telephony is operated via a Bluetooth® handset integrated into the rear and featuring a convenient touch display. This allows functions such as seat adjustment to be operated intuitively.

The most important new functions at a glance

Equal rights for every occupant: the entertainment features

The new S-Class is the first vehicle worldwide to offer a genuine multi-user system with Individual Entertainment System in the rear. This means that there is independent access to the media sources of the entertainment system from any of the four seats – i.e. radio, TV, internet, navigation, DVD player and USB-connected devices.

The driver control function for all the seats is another new feature. The driver is able to route any audio or video source to the display and headset of any passenger. At the touch of a button the driver is also able to have one of the audio sources in use played via the onboard loudspeakers.

The multi-user system was technically realised by connecting the COMAND Online system with Individual Entertainment System in the rear via a fibre-optic cable, a so-called MOST bus system (Media Oriented Systems Transport). Access to the sources from any seat is possible via the MOST ring, which works with a transfer rate of up to 150 Mbit per second. For the COMAND remote control function, digital radio technology is used for the first time instead of infrared technology. This makes operation throughout the vehicle possible from any position.

The well-proven SPLITVIEW system for the driver and front passenger has been retained. The COMAND Online system forms a mixed image from two separate display images (e.g. TV and navigation). This is then separated in the high-resolution central display by means of prisms, enabling different screen content to be shown for the driver and front passenger depending on the viewing angle. The driver and front passenger therefore see different images – the passenger can watch television, for example, while the driver is following the navigation instructions.

Together with the DVD changer, headset and Comand Online remote control, SPLITVIEW is part of the "Individual Entertainment" system. The "Individual Entertainment System in the rear" meanwhile comprises a second DVD player (in the centre console for the five-seater, in the parcel shelf for the four-seater), two high-resolution 10.2-inch displays, radio remote control and two wireless headsets.

With Frontbass and up to 24 loudspeakers: the sound systems

The innovative Frontbass system developed by Mercedes-Benz‑and used for the first time in a saloon car is a feature common to all the audio systems: the woofers are housed in the firewall, and use the almost 40-litre space in the cross-member and side member as a resonance chamber. Since woofers no longer have to be fitted in the doors, the acoustically disturbing vibrations typical of this configuration are eliminated. The mid-range speakers in the doors are relocated upwards. This improves the soundscape and allows additional stowage space in the doors.

As alternatives to the standard sound system with ten loudspeakers, two very high-quality audio systems are available which were developed together with the high-end audio specialist Burmester: Burmester® Surround Sound system and Burmester® High-End 3D‑Surround Sound system.

The features of the three sound systems at a glance

The systematic use of analogue diplexers in the medium and high frequency ranges ensures an extraordinarily expressive and natural sound. Bass, mid-range, treble, volume, balance and fader can be individually adjusted. The listening experience can be enhanced even further with the Surround function or sound optimisation for the front and rear seats.

Three-dimensional in-car sound: Burmester® High-End 3D Surround Sound system

The optional Burmester® High-End 3D Surround Sound system offers a unique visual and acoustic experience. The tweeters in the mirror triangles of the front doors are a particular visual highlight. They rotate through 360° when the head unit is turned on, moving ten millimetres towards the passengers in a spiral motion. This movement aligns the tweeters to give the optimum sound impression. This system is also visually distinguishable from the Burmester® Surround Sound system by three overhead speakers and special door speaker covers.

The Burmester® High-End 3D Surround Sound system makes for an outstanding listening experience, with the best possible sound settings for every seat and, for the first time, three-dimensional sound as standard in a luxury saloon car. This 3D surround sound is created with the help of special Burmester algorithms and three speakers integrated into the headlining. This combination of analogue and digital technologies produces an extraordinarily expressive and natural sound – the Burmester "feel-good sound".

If the ambience lighting is switched on, the two tweeters are illuminated in one of the seven available colours. The same applies to the overhead console, which is also elegantly emphasised by the ambience lighting and accommodates two of the three overhead speakers.

The Burmester® High-End 3D Surround Sound system provides its unrivalled listening experience by virtue of 24 high-performance speakers and 24 separate amplifier channels with a total output of 1540 watts. At the same time an intelligent combination of analogue and digital amplifier technologies leads to a particularly fine and natural sound together with high performance reserves. While sophisticated analogue filter settings allow the best possible fine reproduction in the mid-range and treble frequencies, the digital amplifier - despite its compact dimensions - masters the highest dynamic peaks. The result is outstanding sound resolution and fine acoustic detail, combined with impressive impulse reproduction. This provides a rounded, warm and substantial sound experience founded on an impressive bass range.

The new, three-dimensional listening experience provided by the 3D Surround Sound system and created by the Burmester speakers integrated into the vehicle roof is unique. In addition to the two speakers in the overhead console, another speaker is accommodated in the overhead control panel. A 3D algorithm was developed specifically for the new S-Class‑to create the unique listening experience made possible by these overhead speakers. The aim of the developers was to add a subtle spatial effect to the outstanding listening experience.

Apart from 3D Surround, four other preset sound modes can be selected to suit every taste and audio source:

- Pure: audiophile sound reproduction with no additional effects, for unadulterated musical enjoyment

- Live: appealing, dynamic sound background akin to live music

- Easy Listening: milder sound background for relaxed listening over longer periods

- Surround: virtual surround sound

3D-Surround: three-dimensional listening experience provided by the overhead loudspeakers

Using the so-called VIP setting, the sound quality can be optimised for any of the four seating positions. This function has been carefully configured for each of the sound modes shown above.

The sophisticated sound compensation (VNC) has also been developed further. This ensures that the best possible sound impression is maintained despite changes in driving noise. VNC guarantees maximum listening pleasure at all times – whether on the motorway or in town.

Credits: Daimler AG

Copyright © 2013, Mercedes-Benz-Blog. All rights reserved.

Detail: The new Mercedes-Benz S-Class: Multimedia features - Communication centre and concert hall

0 The new Mercedes-Benz S-Class: The driving assistance systems - Helpers in the background

Avoid accidents and mitigate their consequences - this is the integrated approach adopted by Mercedes-Benz Accident Research under the heading "Real Life Safety". Mercedes-Benz is systematically pursuing this strategy with numerous new assistance systems and greatly enhanced functions. Comfort and safety are enhanced at the same time, and new possibilities are opened up for motorists and car developers. Mercedes-Benz calls this "Intelligent Drive". The new functions all rely on the same sensor system, comprising a new stereo camera together with multistage radar sensors.

The support functions range from relieving the burden on the driver and therefore increasing comfort, to issuing visual, acoustic and/or tactile warning signals, to boosting the driver's reactions. Some systems are even able to take corrective action in an emergency, such as autonomous applications of the brakes to prevent an accident or lessen its severity. Here is a summary of the new assistance systems and those with notably enhanced functionality:

- DISTRONIC PLUS with Steering Assist and Stop&Go Pilot takes the burden off the driver when it comes to lane guidance and is also able to follow vehicles in traffic jams automatically.

- For the first time, thanks to the stereo camera the Brake Assist system BAS PLUS with Cross-Traffic Assist is able to detect crossing traffic and pedestrians too, and to boost the braking power applied by the driver accordingly.

- If the lane markings are broken lines, Active Lane Keeping Assist can detect when the adjacent lane is occupied, especially by oncoming traffic, and reduce the risk of the vehicle leaving its lane unintentionally by applying the brakes on one side.

- Adaptive Highbeam Assist Plus allows the high-beam headlamps to be kept on permanently without dazzling traffic by masking out other vehicles in the beams' cone of light.

- Night View Assist Plus was further developed and supplemented by a thermal imaging camera. Night View Assist Plus can alert the driver to the potential danger posed by pedestrians or animals in unlit areas in front of the vehicle by automatically switching from the speedometer to a crystal-sharp night view image and highlighting the sources of danger. A spotlight function is furthermore able to flash any pedestrians detected ahead.

- ATTENTION ASSIST can warn of inattentiveness and drowsiness in an extended speed range and notify the driver of their current state of fatigue and the driving time since the last break, offers an adjustable sensitivity setting and, if a warning is emitted, indicates nearby service areas in the COMAND navigation system.

Sensors: intelligent networking of eyes and ears

Mercedes-Benz is making a major leap forward with the introduction of the Stereo Multi-Purpose Camera (SMPC), or stereo camera for short. Just like the Multi-Purpose Camera (MPC) fitted previously, it is positioned behind the windscreen in the vicinity of the rear-view mirror. It has an aperture angle of 45° and is capable of detecting the position and movement of objects, especially vehicles and pedestrians, in three dimensions in each case. The "6D-Vision" technology nominated last year for the German Research Prize is used for this purpose for the first time. The camera's two "eyes" provide it with a three-dimensional view of the area up to around 50 metres in front of the vehicle, and it is able to monitor the overall situation ahead for a range of up to 500 metres. In this way, the new camera is able to provide data for processing by various systems.

Intelligent algorithms evaluate this information in order to detect and carry out spatial classification of vehicles that are driving ahead, oncoming or crossing, as well as pedestrians and a variety of traffic signs and road markings within a large field of vision.

Whereas the stereo camera's lenses act as the car's eyes, the radar sensors are its ears, so to speak, and provide additional data about the distance from objects. The system of radar sensors comprises two short-range radar sensors in the front bumper and in the side of the rear bumper with a range of 30 m and a beam angle of 80°, which are complemented by a long-range radar (200 m, 18°) including medium-range detection (60 m, 60°). In addition, the multi-mode radar (80 m, 16° and 30 m, 80°) fitted at the front of the standard vehicle with COLLISION PREVENTION ASSIST is installed in the middle of the rear bumper. The data from the camera and radars is amalgamated in a control unit in order to provide the system-specific data for the various functions.

Comfort-enhancing assistance with lateral lane guidance: DISTRONIC PLUS with Steering Assist and Stop&Go Pilot

The DISTRONIC PLUS adaptive cruise control is a driver aid designed to keep the vehicle at the desired distance from another vehicle in front that is travelling slower than the selected cruising speed. This basic radar-based function has now been enhanced by the addition of a Steering Assist with Stop&Go Pilot, which helps drivers to stay centred in their lane by generating the appropriate steering torque when travelling on a straight road and even in gentle bends.

The stereo camera recognises lane markings as well as vehicles driving ahead together with their spatial positioning, and relays this information to the electric steering assistance system. By generating the appropriate steering torque, the system can enhance ride comfort in the speed range up to 200 km/h and greatly assist the driver in many traffic situations. At speeds up to 60 km/h, the Stop&Go Pilot 'intelligently' decides whether to use the vehicle in front or the road markings as a means or orientation, enabling semi-autonomous following of traffic jams even when there are no clear lane markings visible. The system fuses the data gleaned from the stereo camera and the radar sensors, calculates any reactions required, and then regulates the vehicle's linear speed as requirements dictate by controlling engine power, transmission and brakes, as well as actuating the electric steering for lateral vehicle guidance.

DISTRONIC PLUS with Steering Assist can be activated as before with a selector lever on the steering wheel in a speed range from 0-200 km/h, now also with the vehicle standing still and no vehicle moving ahead of it. Any speed between 30 km/h and 200 km/h can be selected as the desired cruising speed. The driver starts off in this case by pulling the DISTRONIC PLUS lever or tapping the accelerator.

A green steering wheel symbol appears in the instrument cluster to indicate when the Stop&Go Pilot is operating while DISTRONIC PLUS is activated. Meanwhile, linear controlling actions (cruise control function) continue to be visualised in the speed display by means of circular segments and the speedometer needle.

The system's design is so refined that the sensors can detect whether the driver's hands are actually on the steering wheel. If the system recognises that the driver has taken their hands off the steering wheel while the car is moving, depending on the situation, the detected surroundings and the speed, a visual warning is issued in the instrument cluster first; then a warning signal sounds and the Steering Assist is deactivated. This is additionally indicated by changing the steering wheel symbol from green to white. The linear control action remains unaffected by this and continues to be available. That means the system has an intelligent hands-off detection feature that brings the driver's hands back to the wheel when necessary. The use of DISTRONIC PLUS requires no change in driver behaviour – those who previously drove hands-free in a tailback can continue to do so (much more safely). Thus, Mercedes-Benz offers relaxed driving mainly over long distances and on motorways, especially during otherwise tiring and annoying (slow) tailback tracking.

The performance capabilities of the basic DISTRONIC PLUS function have been increased once again. Now, the system is able to brake at a rate of up to 5 m/s² without any intervention from the driver. If the "S" drive mode button is pressed, the rate of acceleration increases, too. Vehicle acceleration is also far more dynamic if the driver signals a wish to overtake by switching on the indicators, assuming the adjacent lane is clear.

By combining the radar and camera data, DISTRONIC PLUS is now also able to detect both vehicles cutting in and vehicles ahead, and vehicles ahead of them, in one's own lane and in adjacent lanes, and take any necessary action promptly. This can prevent, for example, illegal overtaking on the inside lane on motorways and similar multi-lane highways by adapting the speed to that of vehicles in the outside lanes (at speeds above 85 km/h), especially when a tailback begins to dissolve and in streams of traffic. At lower speeds, permissible overtaking on the inside lane with a maximum speed differential of 20 km/h is possible.

It goes without saying that the driver always can override DISTRONIC PLUS with Steering Assist. For instance if they signal with their indicators that they wish to change lanes, the lateral assistance remains passive as long as it takes to change lanes.

Braking assistance for cross traffic too: BAS PLUS with Cross-Traffic Assist

City centre junctions are a major accident blackspot. The collisions here can mostly be put down to driver distraction or misjudgement. Whereas humans often react too slowly, assistance systems are immune to that brief moment of shock.

Apart from material damage, accidents at junctions often result in serious personal injuries, too. The new Brake Assist BAS PLUS from Mercedes-Benz is therefore capable of more than just helping the driver to avoid collisions with vehicles ahead or lessen their consequences in a purely linear direction: the new Cross-Traffic Assist function can also come to the driver's aid in critical situations with cross traffic at junctions.

If this anticipatory system detects a hazardous situation of this type, it prompts the driver to start emergency braking by activating visual and acoustic warnings. If the driver presses the brake pedal too tentatively, BAS PLUS will step in by automatically boosting brake pressure for effective emergency braking, even applying the brakes at full power if necessary. Applying just the right amount of braking power for the situation at hand maximises the available braking distance for traffic behind.

The Cross-Traffic Assist function is operative at speeds up to approx. 72 km/h, while BAS PLUS is able to aid the driver in linear situations at any speed.

Brake Assist BAS PLUS with Cross-Traffic Assist is potentially able to either prevent or lessen the severity of around 27 percent of all accidents at road junctions resulting in injury. This equates to some 20,000 accidents a year in Germany alone (source: investigations carried out by the GIDAS – German In‑Depth Accident Study – and Mercedes-Benz Accident Research).

Detects broken lines too: Active Lane Keeping Assist

The new improved version of Active Lane Keeping Assist is now also able to intervene should the driver inadvertently cross a broken line when the neighbouring lane is not clear, meaning that a lane change could result in the risk of a collision. The system can determine if this is the case using the information from the stereo camera and the radar system. The latter has been supplemented by a sensor at the rear, which works in unison with the other sensors in the front and rear bumpers.

Active Lane Keeping Assist is not only capable of recognising critical situations such as overtaking vehicles, vehicles to be overtaken and parallel traffic, it can also respond effectively to oncoming traffic. If the system detects the vehicle crossing the lane markings when the adjacent lane is not clear, not only does it cause the steering wheel to vibrate in pulses as a tactile warning for the driver, it guides the vehicle back into lane by applying a corrective braking force on one side via the ESP®, now also when the vehicles crosses broken lines. It thereby complements the Active Blind Spot Assist, and for the first time also enables the often fatal collisions with oncoming traffic to be avoided.

Active Lane Keeping Assist is active at speeds between 60 and 200 km/h. If driver activity in the form of active steering, braking or acceleration is detected, for example, or when the indicators are switched on, both the warning and the corrective brake actuation are suppressed. Using the instrument cluster the system can be set for two levels – Standard or Adaptive.

Now recognises no-overtaking zones and access restrictions, too: Traffic Sign Assist with wrong-way driver warning function

A new Traffic Sign Assist which builds on the capabilities of the previous Speed Limit Assist represents yet another contribution to accident prevention from Mercedes-Benz. The system is now also able to recognise no-overtaking zones and alert drivers to no-entry restrictions.

The camera on the inside of the windscreen continues to pick up speed limit signs, including those on overhead gantries and in roadworks, for example. The camera's data is cross-referenced against the information in the navigation system and can be displayed in both the instrument cluster and the map view. If the camera fails to spot any road signs showing a speed limit or a speed limit is lifted, the legal speed limits based on the navigation data are shown instead, such as a maximum speed of 100 km/h on country roads in Germany or 50 km/h in built-up areas. Supplemental signs are also recognised and displayed according to situation (e.g. "in the wet").

No-overtaking zones and the signs signalling their end are also registered and displayed, while in the case of signs imposing access restrictions, through the wrong-way driver warning function an acoustic warning is emitted together with a visual warning in the instrument cluster – making an effective contribution towards helping to prevent serious accidents caused by wrong-way drivers.

Visualising drowsiness: ATTENTION ASSIST

A quarter of all motorway accidents in Germany are put down to drowsiness, making it one of the most frequent causes of accidents, most of which are of a serious nature. In 2009, Mercedes-Benz presented ATTENTION ASSIST, which is able to detect telltale signs of inattentiveness and increasing drowsiness based on changes in steering behaviour and a host of other factors.

The system has been subject to ongoing development, and the latest version has the ability to detect drowsiness and inattentiveness across a far greater speed range from 60 - 200 km/h. Furthermore, the system's sensitivity can be adjusted, e.g. for drivers who already feel tired when they get behind the wheel.

A new menu in the instrument cluster display also makes the system more tangible and transparent for the driver by visualising the current ATTENTION ASSIST level and the driving time since the last break. What's more, it is also possible to see whether the system is active in the current driving situation. If the usual ATTENTION ASSIST warning recommending the driver to take a break is emitted, nearby service areas can be indicated in the navigation system.

The system can be deactivated by making the appropriate selection in the instrument cluster menu. However, it will always be automatically reactivated with the sensitivity setting last selected the next time the vehicle is started.

Automatic manoeuvring into and out of parallel and end-on parking spaces: Active Parking Assist with PARKTRONIC

Active Parking Assist with PARKTRONIC enables automated parking with active steering and brake control in both parallel and end-on spaces. It is an advanced version of the PARKTRONIC system with Parking Guidance offered previously. What's more, the system is now also able to manoeuvre out of parallel parking spaces again all by itself with automatic steering and brake control, assuming the vehicle was parked there automatically previously.

When travelling at speeds below 30 km/h, ultrasonic sensors with an extended range in the bumpers' side sections survey the nearside of the road for suitable parallel and end-on parking spaces. The same procedure is carried out for the far side of the road if the driver indicates accordingly. A symbol in the instrument cluster shows that the system is in the process of measuring. If a suitable parking spot is identified, an arrow appears alongside the symbol indicating that the system is ready for automatic parking. All the driver now has to do to activate the system is engage reverse gear and confirm by pressing the OK button on the steering wheel.

Active Parking Assist with PARKTRONIC steers and brakes the vehicle automatically as well as indicating the required driver actions in the display each time, such as the gear to be selected. The driver moves the vehicle by lightly pressing the accelerator or releasing the brake.

Credits: Daimler AG

Copyright © 2013, Mercedes-Benz-Blog. All rights reserved.

Detail: The new Mercedes-Benz S-Class: The driving assistance systems - Helpers in the background