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FRAUNHOFER INSTITUTE FOR
EXPERIMENTAL SOFTWARE ENGINEERING
CARUSO DATAPLACE GMBH
Vehicle Data: Digital Fuel for the Connected Car Economy
A Study on the Data Needs of the Automotive Aftermarket
Data from connected vehicles is the
foundation for many upcoming mobility
services. Currently, acquiring data from a
larger number of vehicles from different
brands is a challenge due to diversity and
a lack of central access. The Extended
Vehicle standard aims to provide a tech-
nical baseline for accessing vehicle data.
Caruso has established the first compre-
hensive data catalog for vehicle data,
comprising 301 data items. Based on this
catalog, Fraunhofer IESE conducted a
study to identify the data needs of play-
ers in the automotive aftermarket.
13 responses provided priority levels for
data needs and confirmed a genuine,
strong, and broad interest in this data.
Moreover, 125 additional data items
were requested by the participants.
For each prioritized data item, the partici-
pants were also asked to state the de-
sired quality/accuracy and the required
update frequency. Steep requirements
were imposed on the data update fre-
quency; 36% of the data items being
demanded at sub-second frequencies for
particular services. This cannot be
achieved without lowering the transmis-
sion frequencies through (pre-)processing
in the vehicle. The Extended Vehicle
standard currently does not support this,
so that many envisioned services might
not be possible. Access to historical data
is currently also not covered by the Ex-
tended Vehicle standard and may impose
new demands on data providers or data
marketplaces like Caruso.
The study confirmed that there is a
strong demand for vehicle data for many
different types of future mobility services.
Vehicle data must be easily accessible to
all players of the automotive aftermarket.
The Caruso data catalog is the first step
towards a uniform view on vehicle data.
EXECUTIVE SUMMARY
Highest Requested Update Frequency
36% within <1 second 25% within seconds 18% no data
7% event-triggered
2% within days
9% within minutes
3% within hours
Caruso Dataplace Index
301 data items
Data Collections
Questionnaire Results
301
+125
Caruso Dataplace data items
All 301 needed by the aftermarket
Aftermarket Data Needs
426 data items (125 new)
Historical data is also needed
13responses
received
Q3/2017survey
conducted
301data items
used in survey
3data item
priority labels
1st
comprehensive
data catalog
Caruso has created the first open and
comprehensive catalog of vehicle-related
data, covering perspectives of multiple
verticals. Upon their request, Fraunhofer
IESE conducted a survey to prioritize the
catalog’s data items, and to verify how
well Caruso’s catalog meets the current
data needs of representative companies
in the automotive aftermarket. The re-
sults also helped expand the catalog.
The survey was conducted in Q3/2017.
A digital questionnaire was sent to com-
panies of the automotive aftermarket, in
particular to members of CLEPA and
other partners of Caruso. It contained
instructions and Caruso’s vehicle data
catalog with 301 items.
The companies were asked to provide a
priority level (“mandatory”, “nice-to-
have”, or “not needed”) for each of the
301 data items of the catalog.
In addition, for each prioritized data
item, they were encouraged to provide
an example of the data, its desired quali-
ty/accuracy, its required update frequen-
cy, and additional remarks. As optional
questionnaire items, the companies could
list data items they missed in the catalog,
indicate the purpose(s) for which they
intend to use vehicle data, and make
general comments.
To date, 13 detailed responses have been
received, of which one outlier was omit-
ted from analysis. However, understand-
ing the data needs for future mobility
services is an activity that has only just
started. Caruso has updated its market-
place index with the data items added by
the survey participants, and will continue
to do so. Thus, interested companies are
welcome to contact Caruso or Fraunho-
fer IESE to tell us of their data needs.
The full study will be available soon via
www.caruso-dataplace.com/datastudies
A STUDY ON THE NEEDS FOR VEHICLE DATA
IN THE AUTOMOTIVE AFTERMARKET
Regarding the assignment of priority
levels by representative companies in the
automotive industry, each of the 301
items were prioritized as “mandatory” at
least once, with only two items getting
merely one such vote. A vast majority of
items (82%) were requested by 30–70%
of the companies. The finding that most
vehicle data items are used only in spe-
cific contexts is corroborated by the dif-
ferent purposes for which companies aim
to use vehicle data, namely: cross-brand,
brand-specific. and personalized services,
improved traffic safety, and component
analysis & quality improvements.
The companies additionally stated the
need for 125 unique new data items.
Requirements on update frequency were
provided for 82% of the data items. For
36% of the data, the strictest requested
update frequency is less than 1 second
(and often significantly less). The cumula-
tive totals show that data is often also
needed within a matter of seconds, or
triggered by events such as changed
settings or a particular type of vehicle (in)
activity.
42% of the data items were given re-
quirements on their accuracy, mainly
regarding significant figures, distances,
forces, and degrees.
RESULTS: KEY REQUIREMENTS FOR DATA
MOST REQUESTED DATA ITEMS
1. Speed of Vehicle
2. Acceleration of Vehicle
3. Odometer Value
4. Diagnostic Trouble Codes
Battery State of Charge
5. Non-Standardized Codes
Engine RPM
6. Remaining Life of Brakes
7. Mileage
GPS Position
Battery Voltage
8. Service Indicator
Relative Position of Brake Pedal
Status ABS
Status ESP
0%
10%
20%
30%
40%
Highest Requested Frequency per Data Item
42%accuracy
requirements
82%update frequency
requirements
125new data items
provided
36%<1 second
frequency
426data items
after survey
100%items prioritized
≥1 mandatory
The participating companies from the
automotive aftermarket showed great
interest in vehicle data and confirmed the
relevance of the data items in the Caruso
data catalog.
Vehicles are providing increasingly more
data that will be offered by the vehicle
manufacturers via the Extended Vehicle
standard.
The key challenge is to make this data
available with the high update frequen-
cies requested and needed for the de-
sired use cases. The current architecture
of the Extended Vehicle standard pre-
vents this. Only a concept of configurable
data (pre-)processing in the vehicle
(which is currently not available) could
help to overcome this shortcoming. Oth-
erwise, companies in the automotive
aftermarket might not be able to offer
certain services.
Many scenarios that use vehicle data
provide services or perform monitoring,
which requires the most recent data val-
ues from a vehicle. However, historical
data is often needed for quality assur-
ance and predictive services, which is
currently not being collected and provid-
ed. Either vehicle manufacturers or Caru-
so could persist vehicle data to enable
automotive aftermarket scenarios that
are based on historical data.
Caruso has expanded its vehicle data
catalog to 426 data items based on the
additional data needs provided by the
survey participants. Caruso welcomes
further participants to the survey. The
Caruso data catalog will be continuously
evolved to serve as a basis of the market-
place between companies that offer data
items and companies that want to create
additional value with data.
CONCLUSIONS FROM THE STUDY
AUTHORS Eduard C. Groen (Fraunhofer IESE), Dr. Matthias Naab (Fraunhofer IESE), Dr. Jens Knodel (Caruso)
Dr. Matthias Naab
Department Head
Architecture-Centric Engineering
Fraunhofer IESE
Fraunhofer-Platz 1
67663 Kaiserslautern
Germany
www.iese.fraunhofer.de
+49 631 6800 2249
Dr. Jens Knodel
Chief Ecosystem Architect
CARUSO GmbH
Steinheilstraße 10
85737 Ismaning
Germany
www.caruso-dataplace.com
+49 89 321 216 9900
CONTACT
