Table of Contents
Advertisement
lll.___
l_ n _ t_ e _ ll _ ig = -e_ n _t_te _ c_ h_ n _o _lo ...; g ' "'-=-
y ___________________________________________
_
Intelligent
technology
Notice
about
data
recorded
by
vehicle
control
modules
Your vehicle is not equipped with an Event Data Recorder (EDRl,
installed by some manufacturers for the express purpose of
capturing data for retrieval after an accident or crash event . EDR's
are sometimes called "crash recorders".
Some state laws restrict the retrieva l or downloading of data stored
by EDR's that were insta lled in a vehicle for the express purpose of
retrieving data after an accident or cras h event without t he owner's
consent.
Although your vehicle is not equipped with an EDR, it is equipped
with a number of electronic control modules for various vehicle
systems such as, for example, engine function, emission contro l, as
we ll as for the airbags and safety belts.
These electronic control modules also record vehic le-related data
dur ing norma l vehicle opera t ion for diagnost ic and repair purposes .
The recording capacity of the electronic control modules is limited
t o data (no sound is recorded) and only a small amount of data is
actua lly recorded over a very limited period of time and stored when
a system fault or other condition is sensed by a control unit. Some
of the data then stored may relate to vehic le speed, d irection,
braking as we ll as restraint system use and performance in the
event of a crash or other condition . Stored data can only be read and
downloaded with special equipment. •
Electronic
Stabilization
Program
(ESP)
General
information
The ESP improves the vehicle stability.
I~
"
"'
(
~
1 ~
IA
I
3-
)
Fig. 254 Cente r
console w it h ESP
switch
ESP is designed to help you maintain vehic le control in situations
where the car approaches the limits of "grip", especia lly when
acce lerating and cornering . ESP reduces the risk of skidding and
improves stabil ity under all road conditions.
The system operates across the entire speed range in combination
with the ABS system. If the Ant i-Lock Brake System (ABS) malfunc-
tions, the ESP wi ll also shut down .
H ow the sys t e m w o rk s
The Anti -Lock Brake System (ABS), Electronic Differential Lock (EDU
and the Anti-Sl ip Regulation System (ASR) are integrated in the elec-
tronic stabi lization program. In addition to the data provided by
t hese f unctions, the ESP control unit requires additional measure -
ment data provided by high performance sensors . The rotational
speed of t he veh icle about its vertica l axis, the lateral acce lerat ion
acting on the vehicle, the brake pressure and the steering angle are
all measured .
_,,,,
Advertisement
Table of Contents
