detected by the electronics system that
ultimately outputs the seat belt re-
minder signal. A major challenge for the
developers was to find the ideal switch-
ing point in the entire seat across a
temperature range of minus 40°C to
plus 85°C whilst taking various tested
seat positions into account. The SBR
sensor has to ensure 100 percent de-
tection of objects weighing above 40 kg
and must not be activated below 5 kg.
The SCHERDEL in-house development
together with an appropriate vehicle
seat mat witnessed its first commercial
scale production run in September of
last year. The vehicle models of a
renowned manufacturer will be
equipped with the new technology from
mid-2015. The full assembly consists of
the ready-to-install and fully tested sen-
sor with a respective adapter. A com-
plete assembly line with end-of-line test
(EoL) has been set up in at the
SCHERDEL facility in Marienberg. To
facilitate traceability, each sensor
comes with a data matrix code. It is al-
so important to mention that
SCHERDEL has once again taken the
needs of customers into account by en-
suring simple installation: It takes very
little effort and just a few seconds to
clip the sensor onto the spring mat and
fix it to the seat frame.
(dk)
7
SERVICE CENTRE – LOCATIONS –
TECHNOLOGY & PRODUCT DEVELOPMENT
– NEWS AND INFORMATION
The seat sensor is clipped onto the spring mat
quickly and easily.
The seat sensor is installed on the B-surface of
the foam, thus enhancing seating comfort.
Contact
SCHERDEL INNOTEC
Forschungs- und
Entwicklungs-GmbH
Scherdelstr. 2
95615 Marktredwitz
Germany
Tel.: +49 9231 603-0
Contact person
Michael Rankel
Tel.: +49 9231 603-612
Michael.Rankel@
scherdel.de
SCHERDEL
Marienberg GmbH
Am Federnwerk 1
09496 Marienberg
Germany
Tel.: +49 3735 710-0
Contact person
Dipl.-Ing. Jan Seitenglanz
Tel.: +49 3735 710 800
jan.seitenglanz@
fwm.scherdel.de
“The seat sensor developed in cooperation with our client
is a perfect example of how the demand for innovation of-
ten brings with it different ideas and different ways of look-
ing at problems. With this type of project it is always nec-
essary to rethink set positions and to evaluate previous ex-
periences from new perspectives and with fresh concepts.
Installation of the sensor on the B-surface of the foam
leads not only to new seat design options, but also signifi-
cantly improves seating comfort for the vehicle occupants.
A criterion that obviously has a huge impact on the suc-
cess of our development partnership in the market.”
Marcus Bach
Managing Director
SCHERDEL GmbH
comfort and safety
development for passenger seats
