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8
GENERAL INSTRUCTIONS
The vehicle data is read out
using the legally prescribed
socket for on-board diagnosis
(OBD) in the vehicle.
Legal requirements for the
disclosure of data
As part of its legal responsib-
ilities, the manufacturer of the
vehicle is obligated to make its
stored data available to the rel-
evant authorities. This data is
provided in the required scope
in individual cases, for example
to clarify a criminal offence.
In the context of applicable
laws, public agencies are en-
titled in individual cases to read
out data from the vehicle them-
selves.
Operating data in the vehicle
Control units process data to
operate the vehicle.
This includes, for example:
Status reports of the vehicle
and its individual components,
for example wheel speed,
wheel circumferential velo-
city, deceleration
Environmental conditions, for
example temperature
The data is only processed in
the vehicle itself and is gener-
ally non-permanent. The data is
not stored beyond the operat-
ing period.
Electronic components, for ex-
ample control units, contain
components for storing tech-
nical information. Information
can be temporarily or perman-
ently stored on the vehicle con-
dition, component loads, incid-
ents or errors.
This information is generally
used to document the condi-
tion of a component, a module,
a system or the surrounding
area, for example:
Operating conditions of sys-
tem components, for example
filling levels, tyre pressure
Malfunctions and faults in im-
portant system components,
for example light and brakes
Response of the vehicle in
special riding situations, for
example engagement of the
driving dynamics systems
Information on incidents
resulting in damage to the
vehicle
The data is necessary for the
provision of control unit func-
tions. Furthermore, the data
is used to detect and rectify
malfunctions and to enable the
vehicle manufacturer to optim-
ise vehicle functions.
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