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2010
Awards

2010 - Audi Side Assist
Blind Spot Monitoring
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Audi Side Assist is a technology designed to help drivers to change lanes safely.
Two radars, one on either side of the car, are mounted in the rear bumper. At
speeds above 30km/h, these radars monitor the traffic in a zone which extends
from around 70m behind the car to a point just ahead of the driver, and includes
the so-called ‘blind-spot’. However, Audi Side Assist does more than simply check
for vehicles in this blind-spot. By measuring the distance and speed of vehicles
approaching from behind, Audi Side Assist is able to calculate whether or not
a change of lane would be hazardous. If there is no apparent intention by the
driver to change lane, a light situated in the door mirror on the relevant side
of the car is illuminated. The light provides information to the driver that there
is a potential threat. If the driver uses the direction indicator to signal that
he intends to change lane, the warning light flashes more intensely, signifying
to the driver that the manoeuvre he is about to make is potentially dangerous.
The system works when the car is overtaking as well as when it is being overtaken,
to ensure that the car can be safely returned to its lane.
Safety Benefit
Audi Side Assist is a technology developed by Audi to help drivers to make safe
lane changes amongst traffic moving in the same direction at speeds above 30km/h
on highways. The distribution of injury severities in accidents involving a lane
change is similar to those which occur across all accident types. Audi Side Assist
operates at speeds above 30km/h and is designed to address lane-change accidents
which are typical of highway and motorway driving. Accordingly, it has the potential
to help avoid higher-speed accidents and more severe injuries. Estimates vary
as to the benefit which might be expected. One analysis predicts that lane change
assistance technologies could affect around 20% of off-path fatalities in Sweden.
Audi estimates that, in the accidents which could be addressed by Audi Side Assist,
some 80 percent of the injuries are currently fatal or severe, compared to around
a half for all accident types.
How the system assessed?
Audi have tested the system extensively during its development. Controlled tests
were done on a track to establish the correct response of the system in a wide
variety of overtaking manoeuvres, covering a range of relative speeds between
vehicles. These trials were also used to ensure that, to the extent possible,
false warnings are avoided i.e. that no warning is given for vehicles which are
not in the adjacent lane, and which do not pose a threat. In addition, extensive
road testing was done by professional drivers in different traffic and weather
conditions. A customer survey has been used to demonstrate a high level of satisfaction
by users, a critical parameter in ensuring continued use.
Limitations
Audi Side Assist does not switch on by default at the start of each journey. The
status of the system is stored in the key and automatically returns to the last
setting used by the user of that key. The driver can manually turn the system
on and off. In bends, Audi Side Assist may react to a following vehicle which
is two lanes away, not in the next lane. Similarly, if lanes are unusually narrow
(in road works, for example), the system may warn of vehicles in a non-adjacent
lane. The system depends on clear detection by the two radars which might be impaired
in adverse weather conditions (very heavy rain or snow etc). A mounted trailer
might interfere with the radar’s operation. Audi Side Assist is automatically
turned off when a trailer is connected to an Audi towing bracket but must be manually
deactivated for trailers connected to brackets of other makes.
Availability
Audi Side Assist is rewarded for its availability on the Audi A4, on which it
is offered as an option. The system is also available on other vehicles which
have been tested by Euro NCAP, such as the Audi Q5 and Q7. The availability of
optional equipment may vary from country to country. In some countries, optional
safety equipment may be available only when combined with other features as part
of a package, and may not be offered on all variants. You should check with your
dealer to see if the system is available to you.
More
Awards From 2010
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