5 Series E60 530d (M57TU) SAL
>
E60, E61, E63, E64 from 09/2005 [System overview ...]
>
E65, E66 as from 03/2005 [System overview ...]
Changes to ACC 2 compared to ACC 1 (ACC 1 in E60, E61, E65 and E66 before 03/2005):
-
Radar sensor now has 4 radar antenna instead of just 3
This means the area covered by the radar sensor is widened from
±
4
°
to
±
8
°
.
-
The system is approx. 60 % smaller.
With the model year measures, the following changes to the active cruise control option will be introduced in March
2005:
> E60, E61, E63, E64
Additional scope of operation in combination of car communication computer (CCC) with Professional navigation
system option 609.
The dynamics of the Active Cruise Control change according to the characteristics of the roads. (The roads are split
into road categories, e.g. motorways and highways. In addition, the general the number of bends on the route ahead
is analysed, i.e. if there are a lot of bends ahead, or just a few, as well as the radii of the bends.)
The advantages:
In comparison with the previous ACC, ACC 2 offers the following advantages:
-
more dynamic control behaviour
-
The widened surveillance range of the radar sensor means that Active Cruise Control now works much better
when cornering.
•
Vehicles in front are monitored earlier
•
Longer, more stable monitoring when following a vehicle (even in cases of tight bends)
Brief description of components
The Active Cruise Control option consists of the following components:
-
ACC sensor with control unit
The ACC sensor and control unit form a single unit.
The ACC sensor monitors the distance, angle and relative speed of vehicles driving ahead. (Relative speed: The
relative speed is the difference in speed between the two moving objects, i.e. relative to each other.)
The ACC sensor is a radar sensor. The ACC sensor has a limited monitoring range (approximately 120 metres).
[more ...]
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Cruise-control system steering-column stalk
Cruise control is set and called up using the Active Cruise Control system steering-column stalk.
[more ...]
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2 brake pressure sensors
A brake pressure sensor is installed in each of the front and rear axle brake circuits. The signals from the brake
pressure sensors are evaluated by the Dynamic Stability Control.
If Active Cruise Control is in use, the vehicle will be braked as necessary by the Dynamic Stability Control (DSC)
(not DSC intervention). The brake pressure sensors all the brake pressure, which is often only very slight, to be
regulated to the front and rear axles
•
Vehicles with DSC 8Plus:
The brake pressure sensors have been discontinued on vehicles with DSC 8Plus. DSC 8Plus is an
advanced development of the familiar DSC 8.
SBT Active Cruise Control E60, E61, E63, E64, E65, E66
BMW AG - TIS
22.02.2013 10:59
Issue status (12/2007) Valid only until next DVD is issued
Copyright
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