New assistance systems enable partially assisted driving
IQ.DRIVE. With the new IQ.DRIVE umbrella brand, Volkswagen bundles up the driver assistance systems of today and tomorrow on a path towards autonomous driving. The new Passat boasts the most advanced versions of IQ.DRIVE. The innovative network behind the systems makes the Volkswagen, which is tailored to the needs of high-mileage drivers, more comfortable and safer than ever before.
Partially assisted up to 210 km/h. The new assistance systems in the Passat include Travel Assist, Emergency Steering Assist, and ACC with predictive cruise control. The Travel Assist feature, available in a Volkswagen for the first time, allows for partially assisted driving across practically the whole speed range up to 210 km/h – a milestone on the way to autonomous driving. An integral part of Travel Assist is the ACC with predictive speed control. The adaptive cruise control reacts to speed limits, towns, bends, roundabouts and junctions with corresponding speed adaptation.
Armada of assistance systems. The IQ.DRIVE spectrum is supplemented by known technologies which are partially integrated in the new assistance systems. These include the lane change system Side Assist plus Rear Traffic Alert, the lane keeping system Lane Assist, Front Assist with Pedestrian Monitoring, the trailer manoeuvring system Trailer Assist, and the Park Assist system. If the driver no longer reacts for health reasons, Emergency Assist takes over. The system brakes the Passat to a standstill.
Partially assisted up to 210 km/h. Like with Traffic Jam Assist, the Adaptive Cruise Control (ACC) is responsible for longitudinal guidance in Travel Assist, while the Lane Assist adaptive lane guidance system handles lateral guidance Whereas this automatic longitudinal and lateral guidance system was only available up to a maximum of 60 km/h in connection with Traffic Jam Assist, the Travel Assist option in the new Passat enables partially automated driving up to 210 km/h. Travel Assist is activated via the multifunction steering wheel in a matter of seconds with a single button on the left-hand steering wheel clip. If Travel Assist is active, it enables partially assisted driving on Level 2 of the spectrum of the official degrees of automation between 0 and 5. The driver must permanently monitor the system in Level 2 for legal and safety reasons. To ensure this, Travel Assist monitors whether the driver has hands on the steering wheel. This is more convenient in the new Passat than ever before as a direct result of the first capacitive steering wheel from Volkswagen. It is now sufficient that the driver merely touches the steering wheel; the capacitive surface recognises that the driver is still controlling the vehicle by means of ‘hands-off detection’. In the past, feedback was required from the driver in the form of a slight movement of the steering wheel. Furthermore, the following applies: if the driver lets go of the steering wheel for more than around 10 seconds, then a series of warning signals (visual, acoustic, braking jolt) are issued. The driver must react by this point at the latest and touch the steering wheel, otherwise Emergency Assist is activated and the Passat is automatically brought to a stop.
New electromechanical brake servo as standard
Optimised for short braking distances. Volkswagen has considerably enhanced the electromechanical brake servo. The system, previously used only in the GTE with plug-in hybrid drive, can now be found across the whole product line as standard. This is a considerable improvement in comfort and safety. On the one hand, the electromechanical brake servo ensures that the Passat’s brakes react even quicker. Furthermore, the new electromechanical brake servo also improves assisted driving – with tremendous benefits: Adaptive Cruise Control ACC reacts in a more effective manner, as braking interventions with the electromechanical brake servo can be controlled more precisely. In conjunction with Front Assist including pedestrian detection, a standard feature in the Passat, the braking distance is cut by up to 33 percent (within system limits) as part of a deceleration manoeuvre from 30 km/h to 0 km/h. In an ideal scenario, the risk of an accident involving a pedestrian and the impact speed both fall considerably.
ACC with predictive cruise control
Partially assisted longitudinal guidance. The latest generation of adaptive cruise control – ACC – incorporates predictive cruise control. Up until now, the system in the Passat was a pure Adaptive Cruise Control system: just set the desired speed - braking and accelerating was then carried out by the Adaptive Cruise Control. This proven feature will also be offered in the new Passat. From now on, the new, predictive ACC will be available as an additional option. In combination with the navigation system and Dynamic Road Sign Display, the system can also react to variable parameters such as speed limits.
Integrated sensors. ACC with predictive cruise control calculates the vehicle position based on the route and GPS data and reduces the vehicle speed before reaching bends, roundabouts, junctions, speed limits and towns. At the same time, ACC accesses the Dynamic Road Sign Display via the front camera (new generation MFK 3.0) and adjusts the speed as soon as a speed limit is detected. On leaving an area with a lower speed limit, ACC once again automatically accelerates the Passat with predictive cruise control until it reaches the maximum speed limit valid for a given section of road. The radar sensor from the current ACC takes over the safety function in the front and adapts the distance to the vehicle in front. If the Passat is fitted with DSG, the ACC becomes a traffic jam and stop-and-go assistant, as the vehicle also moves off again automatically when equipped with the dual clutch gearbox. The latest generation ACC is no longer a passive system. Instead, it is an active system that improves convenience and safety. The driver can override the predictive ACC at any time by operating the accelerator pedal or brake.
Partially assisted lateral guidance. The Passat is offered with the Lane Assist lane keeping system as standard. The system correctively steers if the vehicle is about to leave the lane. Lane Assist recognises the relevant road lane markings using a camera that is integrated at the top of the windscreen. The new MFK 3.0 multifunction camera is used in the Passat to further improve lateral guidance. Background: the system can recognise both grass and the boundary lines of the lane via the newly integrated “Road Edge Recognition” system.
Emergency Steering Assist
Evasive manoeuvres become safer. The new Emergency Steering Assist in the Passat is available for the first time ever in a Volkswagen. It is automatically activated as soon as the driver has to avoid an obstacle. If the radar sensor integrated in the front end of the Passat recognises an obstacle, then the driver will be visually and acoustically warned about a collision. A typical example of such a situation is a vehicle driving on a country road before braking to a sudden stop. The driver behind intuitively carries out an evasive manoeuvre in response. Such evasion is more agile and controlled in the new Passat due to targeted braking intervention from the assistance system. The vehicle is also stabilised when quickly pulling back into lane and potential turning in is prevented within the system limits. The new Emergency Steering Assist enhances active safety on country roads and motorways.
Intelligent lighting systems look ahead
IQ.LIGHT – LED matrix headlight. The Passat is the second model after the current Touareg to be equipped with the new IQ.LIGHT – LED matrix headlights as optional equipment. Amongst other things, they impress with interactive light control that makes night driving more comfortable and safer. The LED headlights use a matrix made of light dots – individual LEDs that can be activated. Dipped beam and main beam are generated via two LED projection systems. The inner module has seven LEDs for basic illumination; an additional main beam is also realised via five additional LEDs. The outer module is the interactive LED matrix headlight – known as a pixel module. Its light is generated via a total of 32 individually controllable LEDs on a printed circuit. They form the LED matrix. The turn signal, daytime running light, and side light are also realised with LEDs. The LEDs on the turn signal with their “wipe” effect are arranged as a narrow horizontal stripe at the top within the headlight. If the turn signal is inactive then they form the daytime running light, supplemented by four additional LED elements that can be found in the LED projection systems. The LEDs in the daytime running light also form the side light when dimmed. The LED matrix system can be recognised by the IQ.LIGHT logo on the outside of the headlight housing.
Interactive light functions. Various, partially interactive light functions are activated via a total of 44 LEDs in both projection systems. The responsible control unit uses signals from the front camera, the digital map data of the navigation system, the GPS signals, the steering angle as well as the current speed to precisely activate the individual LEDS for optimum light in fractions of a second. The driver activates the automatic continuous main beam function via Dynamic Light Assist by simply pushing the left-hand steering column switch forwards. The rest – dimming, main beam activation, city lighting, motorway light – is done by the Passat. Automatically. As the new matrix headlights operate with the highest light output, people, objects, other vehicles and animals are made visible that would be less recognisable and less visible previously with conventional headlight systems. The new IQ.LIGHT – LED matrix headlights offer a total of eight light functions: city lighting, dipped headlight, motorway light, dynamic cornering light, partial matrix main beam, main beam headlights, sign glare control and a travel mode (when driving in countries with left-hand traffic).
LED tail light clusters
Distinctive switchover function. LED technology is used for the new tail light clusters in the Passat as standard. The design and the LED contours give the rear area a distinctive night time light signature. In the top-of-the-range version of the full LED tail light clusters, the inner LED elements create six small angles known as wings. They are bordered by LED strips for the tail light (above, below, outside) and a LED strip for the turn signal (right at the top). The three wings for the tail light function are aligned with the longitudinal side facing downwards, and the three wings for the brake light face upwards. If the brake is actuated, then the three LED tail light wings switch off and the three LED brake lights switch on – resulting in a recognisable click-clack effect. This feature was taken directly from the Touareg and is only provided by Volkswagen. As is the case with the LED matrix headlights, the LED tail light clusters in the top version are also equipped with a wiper function for the turn signals.
Coming Home / Leaving Home animation. Last, but not least, an animation as a Coming Home and Leaving Home scenario runs when opening and closing the Passat in the dark. To begin with, the turn signal starts by wiping twice in an in-and-out motion, then the three red LED tail light cluster wings are activated, followed by the red LED peripheral areas on the tail light clusters. All red LEDs then go out in succession after the animation has finished.
LED technology in standard equipment
LED as standard in the Passat. LEDs are the preferred light source even in the basic variants. The dipped beam and main beam as well as the daytime running lights and side lights are realised with daylight white LEDs in the standard headlight. Furthermore, the combined fog and cornering light in the bumper optimises visibility using LED technology. The tail light clusters at the rear are equipped exclusively with LEDs.