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Active driver assist

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Active driver assist

The 'Active driver assist' is a driving aid system designed for use on long motorway journeys, where traffic is flowing or in jams.
This system comprises the “Stop and GoAdaptive cruise control function” STOP AND GO ADAPTIVE CRUISE CONTROL and the “Lane Centring” function.
The system allows the driver to :
  • maintain vehicle speed based on a previously saved speed ;
  • adjust the distance between this vehicle and the vehicle in front ;
  • direct the vehicle to the centre of the lane ;
  • adapt the vehicle speed to the speed shown on the road signs, automatically or after confirmation by the driver (depending on the vehicle).
WARNING
Important : you should keep your feet near the pedals and your hands on the steering wheel at all times to prepare for any event.

The “Stop and Go adaptive cruise control” function

Based on information from a camera, the Stop and Go adaptive cruise control function gives you the option of maintaining a selected speed, known as the cruising speed, while keeping a safe distance from the vehicle in front in the same lane.
Depending on the vehicle, the cruising speed can adjust automatically to a speed limit change.
If the vehicle in front stops, the Stop and Go adaptive cruise control may brake your vehicle to a complete stop before setting off again.
The system controls acceleration and deceleration of your vehicle using the engine and braking system.
The “Stop and Go adaptive cruise control” functioncan be activated from 0 to 99 mph (0 to 160 km/h) according to conditions on the road (traffic, weather, etc.).
It is represented by the following symbol or STOP AND GO ADAPTIVE CRUISE CONTROL.
Note :
  • the driver must observe the maximum speed limit and safe distances in the country where they are driving ;
  • the Stop and Go adaptive cruise control can brake the vehicle up to a third of the braking capacity. Depending on the situation, the driver may need to brake harder.
Tip
The Stop and Go adaptive cruise control does not trigger an emergency stop and its braking capability is limited.

The “Lane centring” function

Using information from a camera, the “Lane Centring” function manipulates the steering system to direct the vehicle to the middle of the lane.
If the conditions allow it, the function is available between :
  • 0 mph and 99 mph (0 and 160 km/h) approximately with a vehicle in front ;
or
  • 37 mph (60 km/h) and 99 mph (160 km/h) approximately without a vehicle in front.
The “Lane Centring” function is a comfort feature. It is represented by the symbol .
Note : in the event of a sharp bend, the function’s lateral retention capacities are limited and require the driver to take immediate action on the steering wheel. The camera zone must be kept clean and free of any tapering in order to ensure the proper operation of the system.

Additional information

Depending on the vehicle, the “Active driver assist” function may be used with other driving aid functions.
Please note that :
  • the system cannot be activated when the “Park Assist” function is active ;
  • When the "Lane Centring" function is in adjustment mode, this will suspend the "Lane departure prevention" function if it has already been activated. When the "Lane Centring" function is not controlling the steering system, the "Lane departure prevention" function may be reactivated if conditions allow.

Location of components

1 Camera

Detects markings on the ground and the position of vehicles on the various traffic lanes.
Calculates the distance between your vehicle and the vehicle in front.
The system’s maximum range is approximately 140 metres . This may vary according to the road conditions (ground relief, weather conditions, etc.).
Amongst other things, it controls the system activation/deactivation parameters (door opening status, etc.).
Make sure the windscreen is not obscured (by dirt, mud, snow, etc.).
WARNING
The camera zones must be kept clean and free of any tampering in order to ensure the proper operation of the system.

2 Electronic parking brake

Keeps the vehicle stationary under certain conditions.

3 Power-assisted steering

Operates the front wheels to assist the trajectory of your vehicle according to details transmitted by the 1 computer. It also enables detection of the driver’s hands on the steering wheel.

4 Engine computer

It controls and directs the engine to carry out the required acceleration.

5 Active vehicle control

This system provides information on vehicle dynamics to the computer 1 (speed, lateral acceleration etc.) and acts on the braking system to control deceleration and to keep the vehicle stationary.

Controls

Controls description

6
Selects/deselects the driving aids, depending on the vehicle:
  • Active driver assist;
  • stop and go adaptive cruise control;
  • speed limiter;
  • off.
7
Adjusts the following distance
8
Recalls the stored cruising speed (RES)
9
Activates, decreases cruising speed or stores the current speed (SET/-)
10
Activates, increases cruising speed or stores the current speed (SET/+).
11
Puts the function on standby (with cruising speed stored) (0)
12
(depending on the vehicle) Adapts the speed setpoint to detected speed limits

Displays on the instrument panel

13
Stored cruising speed
14
“Stop and Go adaptive cruise control” function indicator light
15
“Lane Centring” function warning light
16
Vehicle in front
17
Stored safe distance
18
Left-hand and right-hand line indicators
19
Hands off steering wheel detection warning light .

20 Steering wheel

The driver must always keep their hands on the steering wheel. If too much force is applied when turning the steering wheel, the “Lane Centring” function is put on standby so the driver can regain control of the vehicle.
Under certain conditions (sharp bends, etc.) a vibration may be triggered on the steering wheel to warn the driver that they must regain control of the vehicle.
If the driver does not handle the steering wheel (no hands are detected) the “Lane centring” function is deactivated after several alerts.

Activating, deactivating the “Active driver assist” function

Activating the function
To activate the function, press the button 6 as many times as necessary to activate it.
The warning light 15 is displayed in grey on the instrument panel.
Then press the steering wheel control 9 (SET/-) or 10 (SET/+).
The "Active driver assist", consisting of the Stop and Go Adaptive cruise control and the "Lane Centring" function, is then activated.
The green warning light 15 and the left-hand and right-hand line indicators 18 are displayed on the instrument panel to confirm that the function is in operation and directing your vehicle towards the centre of the lane.
You can interrupt the "Lane Centring" function at any time by forcefully turning the steering wheel. As soon as you stop turning the steering wheel, the "Lane Centring" function is reactivated.
Tip
you must keep your hands on the steering wheel when using the "Lane Centring" function. Under no circumstances should you take your hands off the steering wheel.
Deactivating the function
Press the button 6. Deactivation of the function is confirmed by the disappearance of the warning light 15 and the right-hand and left-hand line indicators 18 from the instrument panel.
Tip
if the "Lane departure prevention" function was previously activated and the conditions allow, it will automatically reactivate.

“Lane Centring” function on standby

The “Lane Centring” function is put on standby automatically when :
  • the system no longer detects the lines or only one line is detected in your lane ;
  • the lane is too narrow or too wide ;
  • the system does not detect any hands on the steering wheel ;
  • in some driving conditions (roundabout, intersection, the bend is too sharp, etc.) ;
  • the vehicle speed is greater than approximately 99mph (160km/h) ;
  • the vehicle speed is below approximately 30 mph (48 km/h), without a vehicle in front ;
  • the vehicle crosses a line ;
  • the system is temporarily disrupted (for example: camera obscured by dirt, mud, snow, condensation, etc.).
Certain actions carried out by the driver also suspend the “Lane Centring” function :
  • activating the indicators ;
  • too much force is used when handling the steering wheel.
Standby of the function is confirmed by the 15 warning light and the left-hand and right-hand line indicators 18 appearing in grey on the instrument panel.
WARNING
Important : you should keep your feet near the pedals and your hands on the steering wheel at all times to prepare for any event.
Once the conditions are met, the function again directs the vehicle to the centre of the lane. The 15 warning light and left-hand and right-hand line indicators 18 are displayed in green on the instrument panel.
Tip
You can affect the vehicle trajectory at any point by turning the steering wheel.

“Keep hands on steering wheel” alert

When the “Lane Centring” function no longer detects your hands on the steering wheel, several warning levels will be triggered :
  • after approximately 15 seconds, the message : “Keep hands on steering wheel” is displayed in yellow on the instrument panel 19 ;
  • after approximately 30 seconds, the message : “Keep hands on steering wheel” and the warning light 19 appears in red on the instrument panel, accompanied by a gradually increasing sound signal ;
  • after approximately 45 seconds, the audio sources go on standby, the audible signal sounds continually, the warning light 19 is switched off and the message “Lane centering deactivated” appears in red on the instrument panel  : the “Lane Centring” function is deactivated.
Note : in some situations, the “Lane Centring” function may no longer detect your hands on the steering wheel and may sound a signal :
  • the vehicle is moving along a long straight lane and the driver’s hands are immobile on the steering wheel ;
  • the driver is holding the steering wheel very lightly ;
  • ...
If the “Lane Centring” function is deactivated due to the driver’s hands not being detected on the steering wheel, the Stop and Go adaptive cruise control function continues to operate.
Tip
In the first two alert levels, when the system again detects the presence of the driver’s hands on the steering wheel, the system stops the alerts. The function continues to direct the vehicle to the centre of the lane.

In the case of a sharp bend

In the case of a sharp band, and depending on the vehicle speed, the function’s side retaining capacities will be limited and require the driver to carry out immediate action on the steering wheel so that the function can continue to maintain the vehicle in the centre of the lane.
If the driver does not intervene, the function triggers a vibration on the steering wheel to signal that the vehicle is about to cross a line and that the driver needs to carry out immediate action.
The 15 warning light and the left-hand or right-hand line indicator 18 appear in red on the instrument panel.
If the vehicle crosses a line completely and moves out of lane or if the bend is too sharp, the “Lane Centring” function is put on standby. The function is confirmed to be on standby the warning light 15 and the left-hand and right-hand line indicators 18 appearing in grey on the instrument panel.

Operating faults

If an operating fault is detected by the lane centering function, the message “Check lane centering” is displayed on the instrument panel and the function is deactivated.
The Stop and Go adaptive cruise control function can remain operation.
Consult an approved dealer.
If a “Stop and Go adaptive cruise control” function operating fault is detected, the “Check Adaptive Cruise control” message appears on the instrument panel and both the “Stop and Go adaptive cruise control” function and the “Lane Centring” function are interrupted.
Consult an approved dealer.
If an operating fault is detected on one or more components of the “Active Driver Assist” system, the warning light appears on the instrument panel, alongside, depending on the nature of the fault, the message :
  • “Check front camera” ;
  • “Check camera/radar” ;
  • “Check vehicle”.
The Active Driver Assist system is deactivated.
Consult an approved dealer.
WARNING
The “Active Driver Assist” function is an additional driving aid. This system does not take the place of the driver.
Therefore, it can under no circumstances replace the driver’s responsibility to respect speed limits and safe distances and to be vigilant (the driver must always be ready to brake).
The driver must always be in control of the vehicle. The driver must always adapt their trajectory and speed according to the surroundings and traffic conditions regardless of system indications.
The “Active Driver Assist” uses the “Stop and Go adaptive cruise control” function and the “Lane Centring” function. It must only be used on a motorway or multi-lane road (separated by a barrier).
Except for lines delimiting lanes and the speed limit signs within the limits of the system's detection capacity, the road sign information (other traffic signs, traffic lights, pedestrian crossings, etc.) are not recognised by the system. These do not trigger any alert or reaction by the system.
The "Active driver assist" uses the "Stop and Go adaptive cruise control" and "Lane Centring" functions. The system should under no circumstances be taken to be an obstacle detector or an anti-collision system.
Use the "Active driver assist" exclusively outside built-up areas, on wide roads with visible lines.
It must not be used in heavy traffic, on winding or slippery roads (black ice, aquaplaning, gravel) or during bad weather (fog, rain, side winds etc.).
There is a risk of accidents.
WARNING
System servicing/repairs
  • In the event of an impact, the camera alignment may be changed and its operation may consequently be affected. Deactivate the system and consult an authorised dealer.
  • Any work in the proximity of the camera (replacements, repairs, windscreen modifications, paintwork etc.) must be carried out by a qualified professional.
Only an authorised dealer is qualified to service the system.
WARNING
Deactivating the system
You must deactivate the system if :
  • the vehicle is travelling on a windy road ;
  • the vehicle is being towed (breakdowns) ;
  • the vehicle is being driven with an emergency spare wheel ;
  • the vehicle is towing a trailer or a caravan ;
  • the vehicle is being driven in a tunnel or close to a metallic structure ;
  • the vehicle arrives at a toll point, a roadwork area or on a narrow lane ;
  • the vehicle is being driven up or down a very steep slope ;
  • the visibility is poor (glaring sun, fog etc.) ;
  • the weather conditions are poor (rain, snow, side winds, etc.) ;
  • the vehicle is being driven on a slippery road surface (rain, snow, gravel, etc.) ;
  • the area of the camera has been damaged (e.g. on the inside or outside of the windscreen) ;
  • the windscreen is cracked or distorted ;
In the event of the system behaving abnormally, deactivate it and consult an authorised dealer.
WARNING
Some conditions can disrupt or damage the operation of the system, for example :
  • obstruction of the windscreen area (by dirt, ice, snow, condensation etc.) Frequently check the cleanliness and condition of the windscreen, front wiper blades ;
  • a complex environment (tunnel etc.) ;
  • poor weather conditions (snow, heavy rain, hail, black ice, etc.) ;
  • poor visibility (night, fog etc.) ;
  • poor contrast between the vehicle preceding it and the surrounding area (e.g. white vehicle in a snowy area etc.) ;
  • being dazzled (glaring sun, lights of vehicles travelling in the opposite direction etc.) ;
  • narrow, winding or undulating road (tight bends etc.) ;
  • the tar lines detected as a line by the system ;
  • narrowing/widening lanes ;
  • road markings which are worn, lacking in contrast or very widely spaced from one another (lines partially erased etc) ;
  • multiple markings on the road (roadworks area, slip roads connecting to adjacent motorways, hard shoulder etc.) ;
  • a vehicle with a significant difference in speed ;
  • use of mats not adapted to the vehicle. On the driver’s side, only use mats suitable for the vehicle, attached with the prefitted components, and check the fitting regularly. Do not lay one mat on top of another. There is a risk of wedging the pedals ;
  • Depending on the vehicle, an area with low connectivity that makes it impossible to geolocate the vehicle, or maps that are not up to date.
In these cases, the system may wrongly intervene.
  • Risk of unwanted braking or acceleration.
  • Risk of unwanted, incorrect correction or no correction of trajectory.
Many unforeseen situations may affect the system operation. Certain objects or vehicles that can appear in the camera detection zone may be interpreted by the system incorrectly, possibly leading to inappropriate acceleration or braking.
You should always be attentive to sudden events that might occur while you are driving. Always maintain your vehicle under control by keeping your feet near the pedals and your hands on the steering wheel, so that you are ready to act in any event.