systems. Furthermore, control devices facil-
itate comfort or infotainment functions.
Information about stored or exchanged data
can be requested from the manufacturer of
the vehicle, in a separate booklet, for exam-
ple.
Personal reference
Each vehicle is marked with a unique vehi-
cle identification number. Depending on the
country, the vehicle owner can be identified
with the vehicle identification number, li-
cense plate and corresponding authorities.
In addition, there are other options to track
data collected in the vehicle to the driver or
vehicle owner, e.g. via utilized services.
Operating data in the vehicle
Control units process data to operate the ve-
hicle.
For example, this includes:
–Status messages for the vehicle and its
individual components, e.g., wheel rota-
tional speed, wheel speed, deceleration,
transverse acceleration, engaged safety
belt indicator.
–Ambient conditions, e.g., temperature,
rain sensor signals.
The processed data is only processed in the
vehicle itself and generally volatile. The
data is not stored beyond the operating pe-
riod.
Electronic components, e.g. control units
and ignition keys, contain components for
storing technical information. Information
about the vehicle condition, component us-
age, maintenance requirements or faults
can be stored temporarily or permanently.
This information generally records the state
of a component, a module, a system, or the
environment, for instance:
–Operating states of system components,
e.g., fill levels, tire inflation pressure,
battery status.
–Malfunctions and faults in important
system components, for instance lights
and brakes.
–Responses by the vehicle to special sit-
uations such as airbag deployment or
engagement of the driving stability con-
trol systems.
–Information on vehicle-damaging
events.
The data is required to perform the control
device functions. Furthermore, it also
serves to recognize and correct malfunc-
tions, and helps the vehicle manufacturer to
optimize vehicle functions.
The majority of this data is transient and is
only processed within the vehicle itself.
Only a small share of the data is stored
event-related in event or fault memories.
When servicing, for instance during repairs,
service processes, warranty cases, and qual-
ity assurance measures, this technical infor-
mation can be read out from the vehicle to-
gether with the vehicle identification
number.
A dealer’s service center or another quali-
fied service center or repair shop can read
out the information. The socket for OBD On-
board Diagnosis required by law in the ve-
hicle is used to read out the data.
The data is collected, processed, and used
by the relevant organizations in the service
network. The data documents technical con-
ditions of the vehicle, helps with the identi-
fication of the fault, compliance with war-
ranty obligations and quality improvement.
Furthermore, the manufacturer has product
monitoring duties to meet in line with prod-
uct liability law. To fulfill these duties, the
vehicle manufacturer needs technical data
from the vehicle. The data from the vehicle
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NOTES Information
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