Table of Contents
Advertisement
Intelligent
technology
'-----------------------------------------------
Intelligent
technology
Notice
about
data
recorded
by
vehicle
control
modules
Your vehicle
is
not equipped with an Event Data Recorder (EDR),
installed by some manufacturers
for the express
purpose
of
capturing data for retrieva
l
after an accident or crash event. ED R's are
sometimes
called "crash recorders".
Some state laws restrict the retrieval or downloading of data stored
by
ED R's that
were installed
in
a
vehicle for
the
express
purpose
of
retrieving data after an accident or crash event without the owner's
consent.
Although your vehicle is
not
equipped with an EDR,
it
is
equipped w
ith
a number of electronic control modu les for various vehicle systems
such as,
for example, engine function, emission control,
as
well
as for
the airbags and safety belts.
These electronic contro
l
modules also record vehicle-re lated data
during normal vehicle operation
for
diagnostic and
repair purposes
.
The
recording
capacity of the e lectronic control modu les is
limited
to
data (no sound is
recorded)
and only a sma ll amount of
data
is actu-
ally recorded over a very limited period of time and stored when a
system fault or other
condition is sensed
by a contro
l
unit. Some of
the data then stored may relate to vehicle speed, direction, braking
as
well as
restraint
system
use and
performance in the event of
a
crash or other condition. Stored data can only be read and down-
loaded with
special
equipment.
Electronic
Stabilization
Program
(ESP)
General
The Electronic
Stability Program
increases
driving
stability
.
With ESP, contro
l
over the vehicle is increased in situations when the
vehicle is
close to the
limits of grip, such
as
dur ing accelerat
ion
and
in
curves. ESP reduces the risk of sk idding and improves vehicle stability
unde
r
all
road
conditions.
It
operates at
all speeds.
The Anti-Lock Brake System (ABS), Electronic Differential Lock (EDS)
and Anti-Slip
Regulation
System (ASR) are integrated
in
the
Elec-
tronic
Stab ility
Program
.
How
ESP works
The ESP control unit processes the following data from
high-sensitive
sensors: the rotationa
l
speed
of
the
vehicle about
its
vertical axis,
fore-and -aft and
lateral
acceleration forces, brake pressure and
steering angle
.
Using stee ring ang le and vehicle speed,
the
direction
the driver
wishes to travel is
determined
and continuously compared with
actual
veh icle
behavior.
If
the
two do not
match,
for example when
the vehicle beg ins to skid, ESP brakes the appropriate whee
l
auto-
matically.
The
veh icle is stabilized aga in
by the
forces act ing on
the
whee
l
during
braking. With
an oversteering veh icle (tendency for the
rear
end to
skid
out of
the
curve),
the
brake app lication
is mainly
at the
front wheel on the outside of the curve, with an understeering
vehicle
(tendency to run wide in the curve) at
the
rear wheel on the inside of
the curve or additionally at the other wheels as needed. This brake
application
is
accompanied by
noises
.
_,
Advertisement
Table of Contents
