Polestar 2 2020, Руководство пользователя

Страница: 293 / 568

Subfunctions
Assistance at risk of collision can perform the
following functions if necessary:
• Collision warning
• Assisted braking
• Automatic braking
• Steering assistance
Step 1 – Collision warning
In the event of a risk of collision with a pedes-
trian, cyclist or vehicle, the driver's attention is
alerted by means of a visual, acoustic and brake
pulse warning. At lower speeds or with heavy
braking or acceleration there will be no brake
pulse warning as the intensity of the brake pulse
varies with the speed of the car.
Step 2 – Assisted braking
Assisted braking reinforces the driver's braking
action if the system considers that the braking is
not sufficient to avoid a collision.
Step 3 – Automatic braking
If the driver has not started to take evasive
action and the risk of collision is imminent then
the automatic braking function is deployed - this
takes place regardless of whether the driver
brakes. Braking then takes place with full brake
force in order to reduce collision speed, or with
limited brake force if it is sufficient to avoid a col-
lision.
The seatbelt tensioner can be activated in con-
nection with the engagement of the automatic
brake function.
The function is designed to be activated as late
as possible in order to avoid unnecessary inter-
vention. Automatic braking takes place only
after or at the same time as the collision warn-
ing.
When automatic braking has prevented a colli-
sion with a stationary object, the car remains
stationary in anticipation of positive action by
the driver. If the car has been braked to avoid
collision with a slower vehicle in front, its speed
is reduced to match that of the vehicle in front.
The driver can always interrupt a braking inter-
vention by firmly depressing the accelerator
pedal.
When the function is activated and brakes, the
brake lights are switched on. The driver display
shows a text message to advise that the func-
tion is or has been active.
Steering assistance
The function can help the driver reduce the risk
of the car leaving its lane unintentionally or col-
liding with another vehicle or obstacle by
actively steering the car back into its lane or
swerving. Steering assistance is not part of a
sequence but can be applied regardless of
when the other steps occur.
After automatic engagement, the driver display
indicates that this has occurred via a text mes-
sage.
Related information
• Driving support systems (p. 242)
• Obstacle detection with assistance at risk of
collision (p. 294)
• Option to reduce speed with assistance at
risk of collision (p. 296)
• Limitations for assistance at risk of collision
(p. 297)
• Selecting sensitivity for assistance at risk of
collision (p. 299)
• Assistance at risk of collision in crossing traf-
fic (p. 300)
>>
Driver support 293