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PRE-SAFE~The Next Step in the enhancement of Vehicle Safety
Technical Paper
2003-06-0151
Sector:
Language:
English
Abstract
In times when the potential for further optimizing passive
safety become ever smaller, new ways for improving vehicle safety
must be found. Accident analyses shows that the pre-crash phase
provides room for substantial improvement, calling for reversible
systems that exploit this available time before the accident for
the benefit of the occupants. Preventive occupant protection is
realized for the first time with PRE-SAFE, initiating the next
phase in the enhancement of vehicle safety. PRE-SAFE is embedded in
Mercedes-Benz's integrated safety concept, and combines active
and passive safety systems.
Announced in theory at the ESV 2001, PRE-SAFE has now seen its
first series application in the 2003 S-Class model, and initial
field experience has been gathered. Taking nature's reflex as a
role model, the vehicle reacts to critical driving conditions
identified by the sensors of the Electronic Stability Program (ESP)
and the Brake Assist (BAS) that may lead to an accident. Reversible
belt-pretensioners for occupant fixation, passenger seat
positioning and sunroof closure are activated. However, these are
merely first steps in this new and evolving safety technology.
Further PRE-SAFE applications might be introduced in the future.
Individual safety and environment sensing will mark the next major
steps.