Active Safety; Audi Pre-Sense; Pre Sense Basic - Audi Q7 2017 Manual

Active safety

Audi pre-sense

Audi pre-sense is able to initiate actions that protect occu-
pants and other road users in certain critical situations.
This is made possible by networking the various in-car
systems which communicate continuously on the data bus.
Other control modules are able to evaluate this data and
take appropriate action.
Audi pre-sense basic
Audi pre sense city
Audi pre-sense front
Audi pre sense rear
inclusive of pre sense basic

Pre sense basic

With Audi pre sense basic, the following actions can be
initiated:
• Belt slack reduction.
• Partial or full tensioning of the electrically reversible
safety belt tensioners.
Definition and function of belt slack reduction system for reversible safety belt tensioners
In certain situations, for example, when wearing a thick
winter jacket, it may be the case that the safety belt is not
tight fitting to the body after the reversible safety belt
tensioners deploy. In such a case, the mechanical unreeling
force of the automatic safety belt retractor is less than the
force required to compress the thick winter jacket. The
distance which the safety belt can travel until it fits the
front occupants perfectly is referred to as "belt slack".
Safety belt fits rightly
(minimum belt slack)
16
Please note that Audi pre sense cannot prevent collisions.
It serves only to assist the driver and it can reduce the
severity of the collision. It should also be noted that not all
objects or lane makings can be detected by the sensor or by
the camera. The individual functions of Audi pre sense are
described in greater detail below.
PR no. 7W1
PR no. 6K8
PR no. 8T3 / 8T8
PR no. 7W3
•
•
•
The safety belt is unreeled with defined force by the revers-
ible seat belt tensioners under the following conditions.
This enables any existing belt slack to be reduced.
• If the vehicle reaches a speed of about 9.3 mph (15
km/h) after starting the engine and traveling forwards.
• If the vehicle has not reached a speed of 9.3 mph (15
km/h) about 10 seconds after starting the engine and
traveling forwards.
Safety belt on "thick" clothing
(more belt slack)
637_004
Closing the panoramic glass sunroof.
Closing the side windows.
Switching on the emergency warning flashers.
637_005