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Driver Assistance Systems, Function - GF54.00-P-0002GN

MODEL 166 as of model year 2016 

MODEL 292 

IMPORTANT The name for "DISTRONIC PLUS" has been changed; as of MYJ17/2, the designation will be "Distance Pilot DISTRONIC". The name for "Steering Assist" has been changed; as of MYJ17/2, the designation will be "Steering Pilot".

The name for "COLLISION PREVENTION ASSIST PLUS" has been changed; as of MYJ17/2, the designation will be "Active Brake Assist". The name for "SPEEDTRONIC" has been changed; as of MYJ17/2, the designation will be "Limiter".

The nomenclature changes are not taken into account in this documentation.

Drive Assist systems, general 

The Drive Assist systems support the driver in various situations in accordance with their configuration either actively or passively. In both cases, the Drive Assist systems contribute to driving safety. This helps to reduce the frequency of accidents and their consequences. Ride comfort is also enhanced.

The following Drive Assist systems are available and they are described in separate documents:

Attention assistance system 

By evaluating steering patterns, any onset of driver fatigue (e.g. on long monotonous journeys on freeways and highways) can be detected. If the evaluation indicates fatigue or an increasing lack of attention by the driver, the driver is prompted to take a break by means of visual and acoustic warnings.

Cruise control 

The cruise control constantly adjusts the actual speed of the vehicle without operation of the accelerator pedal to the target speed set by the driver. The vehicle is also automatically braked through active intervention by the brake system when driving down a hill to maintain the target speed.

IMPORTANT The driving assistance systems named below are based on camera or radar technology. People and objects such as, e.g. vehicles and obstacles or traffic signs are registered on the basis of camera or radar technology. Depending on the particular requirements, the driving assistance systems use the detection ranges of the radar sensors and multifunction camera as shown in the diagram below.

Shown: Model 292 

G11969285

Lane Keeping Assist (with CODE 476 (Lane Keeping Assist)) 

The Lane Keeping Assist detects any unintentional driving across lane markings and issues a haptic warning to the driver in certain situations by initiating vibrations on the steering wheel.

The Lane Keeping Assist evaluates detection range "B" (front field of vision of camera).

COLLISION PREVENTION ASSIST PLUS (with CODE 258 (COLLISION PREVENTION ASSIST)) 

The COLLISION PREVENTION ASSIST PLUS continuously checks the following distance to the vehicle driving immediately ahead, warns the driver optically and acoustically about any possible collisions (e. g. a rear-end collision) with other vehicles and helps to significantly reduce the risk of accident. In an imminent collision situation, the COLLISION PREVENTION ASSIST PLUS initiates autonomous partial braking. The COLLISION PREVENTION ASSIST PLUS evaluates detection range "A" (mid-range radar).

DISTRONIC PLUS (with CODE 239 (DISTRONIC PLUS)) 

DISTRONIC PLUS automatically regulates the speed and distance to the vehicle in front based on the driver's inputs in a vehicle speed range of v = 0 to 200 km/h and v = 200 to 0 km/h. The control is realized via the DISTRONIC electric controller unit.

The DISTRONIC PLUS evaluates detection range "A" (long range radar).

DISTRONIC PLUS with Steer Assist and Stop & Go Pilot (with code 266 (DISTRONIC PLUS with Steer Assist and Stop & Go Pilot)) 

The DISTRONIC PLUS regulates the speed and distance to a vehicle in front according to the requirements of the driver automatically by braking (if necessary) and accelerating again (if possible). Distance and speed control is performed by the radar sensors control unit (N62/1) (with code 23P (Driving Assistance Package)). In order to do this, the radar sensors control unit (with CODE 23P (Driving assistance package)) actively intervenes in the engine management or brake system.

If heavier braking is required than the DISTRONIC PLUS can apply, the driver is visually and acoustically warned.

The Steer Assist assists the driver by keeping the vehicle in the center of the lane, even in gentle bends. The vehicle stays in its lane, and unintentional movement towards the lane markings is prevented. Steer Assist does not relieve the driver of his/her task of keeping the vehicle in the lane. It serves more to relieve the load and therefore to facilitate the resulting increase in comfort. Assistance is also only provided within defined limits, i. e. no assistance can be provided for large steering angles at slow speeds, e.g. caused by driving on roads going over passes.

The DISTRONIC PLUS with Steer Assist evaluates detection ranges "A" (long range radar), "B" (front field of view of camera), and "C" (front short range radar).

Blind Spot Assist (with CODE 234 (Blind Spot Assist)) 

The Blind Spot Assist monitors the rear and side areas of the vehicle using short range radar and, if necessary, informs the driver that an intentional lane change (turn signal active) is not recommended at this time. In a broader sense, Blind Spot Assist serves as an extension of the inside rearview mirror.

The Blind Spot Assist evaluates detection range "D" (rear short range radar).

Active Blind Spot Assist (with CODE 237 (Active Blind Spot Assist)) 

The Active Blind Spot Assist monitors the rear and side areas of the vehicle using short range radar and, if necessary, informs the driver that an intentional lane change (turn signal active) is not recommended at this time. In a broader sense, the Active Blind Spot Assist serves as an extension of the inside rearview mirror.

If the active Blind Spot Assist system detects the threat of an imminent side collision with a vehicle during a lane change, a course-correcting intervention by the brake system is requested. This is conducted through targeted wheel-specific interventions by the brake system, to move the vehicle back onto a collision-free course.

The Active Blind Spot Assist evaluates detection ranges "A" (long range radar), "C" (front short range radar) and "D" (rear short range radar).

Active Lane Keeping Assist (with CODE 238 (Active Lane Keeping Assist)) 

The Active Lane Keeping Assist detects when lane markings are unintentionally crossed over and warns the driver in certain situations by means of a warning system in the steering wheel before the lane is exited. If the driver fails to react to the warning, specific interventions by the brake system are initiated in order to return the vehicle to the lane.

The Active Lane Keeping Assist evaluates detection ranges "A" (long range radar), "B" (front field of vision of camera), "C" (front short range radar), "D" (rear short range radar) and "E" (rear long range radar).

BAS PLUS (with code 268 (Brake Assist PLUS) and code 269 (Brake Assist PLUS, cross-traffic (BAS+Q))) 

BAS PLUS supports the driver during an emergency braking maneuver. The brake boost required for this is calculated according to the situation. In this way a threatened collision can be prevented or, at least, the consequences of the collision are mitigated.

BAS PLUS evaluates detection ranges "A" (long range radar), "B" (front field of view of camera) and "C" (front short range radar).

PRE-SAFE® brake (with code 300 (PRE-SAFE® brake) and code 271 (Autonomous brake intervention/pedestrian protection)) 

The PRE-SAFE® brake assesses the traffic situation in front of the vehicle and it continuously determines the hazard potential for a rear-end collision. In critical accident situations PRE-SAFE ® brake introduces appropriate measures geared towards avoiding a collision or - at the least - reducing the possible consequences of a collision. Furthermore, there is a distance warning function contained therein which advises the driver about a vehicle driving immediately ahead which is too close. An optical and acoustic warning is issued before any possible collisions with vehicles or stationary obstacles on the vehicle's own lane.

The PRE-SAFE® brake evaluates detection ranges "A" (long range radar), "B" (front camera field of view), and "C" (front short range radar).

IMPORTANT PRE-SAFE® brake is part of the PRE-SAFE® safety concept. The detailed description of this function is included in a separate document.

Rear end PRE-SAFE (with CODE 253 (Rear-end collision warning and protection system)) 

PRE-SAFE rear end extends the preventive occupant protection system for the stationary vehicle in the event of an imminent rear end collision. To this end, the traffic situation at the rear is monitored. Various measures are introduced on this basis that may be able to reduce the consequences of an accident for the vehicle occupants.

Rear PRE-SAFE evaluates detection range "E" (rear long range radar).

IMPORTANT Rear PRE-SAFE is part of the PRE-SAFE® safety concept. The detailed description of this function is included in a separate document.

Traffic Sign Assist (with code 513 (Traffic Sign Assist)) 

Traffic Sign Assist detects the traffic signs on the route being traveled by the vehicle. It notifies the driver of signposted speed limits and prohibitions or their termination, while also warning visually and acoustically when entering a freeway or a expressway opposite the specified direction of travel (wrong-way driver scenario).

The following traffic signs are registered and evaluated:

The Traffic Sign Assist evaluates detection range "B" (front field of vision of camera).

  Attention assist, function   GF54.30-P-0009GN
  Cruise control (CC), function   GF30.30-P-0001GN
  Lane Keeping Assist, function Model 166 as of model year 2016
with code 476 (Lane keeping assist)
Model 292
with code 476 (Lane keeping assist)		 GF54.71-P-0005GN
  COLLISION PREVENTION ASSIST PLUS, function Model 166
as of model year 2016
with code 258 (COLLISION PREVENTION ASSIST)
Model 292
with code 258 (COLLISION PREVENTION ASSIST)		 GF30.30-P-0018GN
  DISTRONIC PLUS, function Model 166
as of model year 2016
with code 239 (DISTRONIC PLUS)
Model 292
as of model year 2016
with code 239 (DISTRONIC PLUS)		 GF30.30-P-3300GN
  DISTRONIC PLUS with Steer Assist and stop & go pilot function Model 166
as of model year 2016
with code 266 (DISTRONIC PLUS with Steer Assist and Stop & Go Pilot)
Model 292
with code 266 (DISTRONIC PLUS with Steer Assist and Stop & Go Pilot)		 GF30.30-P-0017GN
  Blind Spot Assist, function Model 166
as of model year 2016
with code 234 (Blind Spot Monitoring)
Model 292
with code 234 (Blind Spot Monitoring)		 GF54.71-P-0003GN
  Active Blind Spot Assist, function Model 166
as of model year 2016
with code 237 (Active Blind Spot Assist)
Model 292
with code 237 (Active Blind Spot Assist)		 GF54.71-P-0006GN
  Active Lane Keeping Assist, function Model 166
as of model year 2016
with code 238 (Active lane keeping Assist)
Model 292
with code 238 (Active lane keeping Assist)		 GF54.71-P-0004GN
  BAS PLUS, function Model 166
as of model year 2016
with code 268 (Brake Assist System Plus)
with code 269 (Brake Assist PLUS with Cross-Traffic Assist (BAS+Q)
Model 292
with code 268 (Brake Assist System Plus)
with code 269 (Brake Assist PLUS with Cross-Traffic Assist (BAS+Q)		 GF30.30-P-3310GN
  PRE-SAFE brake, function Model 166
as of model year 2016
with code 271 (Autonomous brake intervention/pedestrian protection)
with code 300 (PRE-SAFE® Brake) Model 292
with code 271 (Autonomous brake intervention/pedestrian protection)
with code 300 (PRE-SAFE® Brake)		 GF30.30-P-3340GN
  PRE-SAFE rear, function Model 166
as of model year 2016
with code 253 (Rear impact warning and protection system)
Model 292
with code 253 (Rear impact warning and protection system)		 GF30.30-P-0015GN
  Traffic Sign Assist, function Model 166
as of model year 2016
with code 513 (Traffic Sign Assist)
Model 292
with code 513 (Traffic Sign Assist)		 GF54.30-P-0010GN
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