[Music]
in recent years were the
general conditions
human existence a quick one
subjected to change
the supply of the industrialized
countries with energy moved into the
center of a converted
social consciousness the
Energy shortage at worldwide
growing demand has
opaque world political
backgrounds too strong
price fluctuations with significant
upward trend for the consumer
guided
the expansion of the road network
through fiscal and infrastructural
Problems partly with drastic limits
set
resource shortage and energy needs
in the production of technical products
Influence on material choice and
manufacturing process increasing
requirements for quality of life
under the aspect of relief
physical work and rising
cost pressure at changed
world economic influences
to profound changes in the
production running
against the background of this economic
and technological change is the
Mercedes types range to a new one
compact series first with the
Models 190 and 190 added
at the conception meetings
they were from the converted ones
the following conditions
development goals in the foreground small
external dimensions low weight
low drag from it
resulting lower
fuel consumption after weighing all
pro and contra arguments engine forward
Drive in the back also for this
size above average
Driving behavior in demanding
driving comfort high active and passive
safety maintenance and repair
friendliness all at one
independent style but without
abandon the typical mercedes benz
features just in that was the
real challenge to the
stylists a more compact and for
daimler-benz scales light vehicle
to design it anyway immediately
mercedes is recognizable
with the help of laser beam technology
the exact measurement of the size takes place
the end face of the vehicle models in the
Windkanal become the
observed flow conditions and the
on the model attacking air forces
measured
the results influence the
Design of the one to one model in the
Big wind tunnel will fine tune
the exterior shape of the model in natural
size made
Here are the effects of
changes immediately after
be studied
the success of every single measure becomes
visible
the vote of form and height of the
roof contour and the trailing edge is for
the drag coefficient of the vehicle
of great importance on the
the basis of the optimized sound model
created hard model confirms the
correctness of the concept
finally one could
drag coefficient of 0 3 3
be achieved though some measures
at the outer vehicle contour in the
conflicting goals with aerodynamics
Optimization stand such as the water
channel for dirt free disposal of
side window
here was aware of the safety of
given preference over the aerodynamics
the final form will finally be
sampled and stands as mathematical
surfaces model for the others
constructive work available
regardless of the type bound
Vehicle development are focusing on the whole
other wise and elsewhere
Designers in new technical territory
new principles are being studied with
compared known structures and
with the help of bills and
experience on your fitness for
serial vehicles checked
especially the completely redesigned
rear axle for the new series
a significant technical innovation
is
every back wheel is spatially spaced by five
arranged left therefore led the
Designation space left axis
[Music]
before deciding on the final
vehicle conception were extensive
theoretical work and help
various test vehicles also
practical testing work to
Chassis tuning performed
[Music]
the chassis development was following
main objectives underlying the because of
better view of the axes at
Demonstration vehicle will be explained
Optimization of straight-ahead since in
power steering and load change reactions
through kinematic and elasto
kinematic tuning
[Applause]
above average driving comfort through
multiple isolation of the suspension
as well as favorable introduction of
dynamic advice forces in the body
over far outward shock absorbers and
separated from it feathers
low tire wear due to low
trace and fall changes the
front axle conception should
raumökonomie good-natured directs
properties at optimal
Steering precision and good driving comfort
connect with each other
These requirements were realized
with a damper leg axis
Take the shock absorbers along with you
the three ex control arms the wheel guide
the feathers are next to the
shock absorbers on the wishbone
large-volume rubber bearings increase the
fahrkomfort
already in construction and calculation
Stadium becomes another essential
goal of the chassis development realized
lowest possible weight below
Consideration for daimler benz
typical high demands on the
Durability extensive
trials on different
test stands simulate both the forces
and moments from the drive train as
also the different burdens the
from the roadway from vienna
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while a servo hydraulic roads
Simulation test bench with the help
a process computer is controlled
the landing gear will be extremely stressed
at the same time elsewhere
extensive constructive work on
the body performed
calculations using the finite
elements support the method
designer in the design of his
designs regarding rigidity and
the weight of body-in-white is the weight
Checking the vibration
properties according to natural frequency phases
position and swing shape with the goal
further improvement of driving comfort
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on another vibration test bench
he to control the operational stability
and Durability the burden of a
Traced bad distance
higher strength sheets one by 30
percent higher energy intake
ensure plastic deformation
protect the occupants in heavy
accidents
The stem is by its special
Concept for the favorable transfer of
forces of the front longitudinal member in the
Passenger compartment especially for protection
the occupants occupied
frontal collisions designed this
Collision saab comes under the heavy
road traffic accidents the largest
meaning too
therefore were resulting from it
claims to the vehicle structure of
especially at the beginning of development
considered in an over
coverage of just 40 percent
just the one-sided application of force
the deformation characteristics of the stem
and the rigidity of the passenger compartment
highest demands
a newly designed steering arrangement
prevents even with this unfavorable
stress too far penetration of the
steering in the passenger compartment
all collision will be tender
according to their importance in the
body design
in numerous will try the
Structure of the vehicle checked and
based on the results obtained
further improved with that is that
Crash behavior of the entire vehicle
according to the latest findings of the
daimler-benz research optimized
this vehicle can as well as the
other types of rows from daimler benz
on request with an airbag for the
driver in addition to the belt and one
Tensioner for the passenger
be equipped
also the protection of outer
Traffic participants were with one
essential development goal despite
various optimization measures
through compliant design of the
entire bonnet area up to
hood rear edge with partially
recessed wipers are at
these are always the limits of the
protection possibility by constructive
measures on the vehicle clearly
The ease of repair is at
try to impact with less
impact speeds under proof
put the possible section here
Repairs reduce costs
everything that regenerates itself
bumpers contribute to the reduction of
Repair costs for trivial accidents
at impact speeds up to four
kilometers per hour were not yet
lasting damage experienced
in driving tests was the vote
of your own behavior through targeted
Changes in the elasto kinematic
characteristics of the front and rear axle
at stationary and in stationary driving
through to the border area
one over the steering angle
changeable translation at the
Mechanical steering could
Steering precision can be increased without that
when parking too high steering forces
must be applied
finally, driving characteristics became
achieved the new standards set
in trying with different caravans
and became an experimental followers
safe driving characteristics also in the
Team operation does not exist
on request, the vehicles can be ex works
with a detachable trailer hitch
be equipped
in case of sudden air deflated tires
the control force lever is the one that works
geometry results from the front axle
Stabilize direction
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the already proven anti-blocking
system still steering at full braking
also possible stands for this series
as special equipment available
even with one-sided slippery roadway
the braked vehicle stays in the
track on driving comfort can be objectively
Measure with the help of a mass seat cushion
and acceleration will be the
vibrations in driving on mass
track and track different
Frequency ranges analyzed longer
wheelbase large spring travel soft suspension
and gas pressure shock absorbers give the
Low frequency range a good one
fahrkomfort
higher frequency stocker vibrations and
vibrations in the drive train
analyzed and over screen time
served played
even with the most diverse
load condition remains the comfort
receive
different climatic conditions
although partly on test stands
can be simulated on
rides in different countries
and climate zones in the testing
work involved at a great height
In cold heat, dust and moisture
The vehicles must also be under
heavy load during driving
prove
in connection with the damper at
Front axle developed fist saddle
disc brake offers except the
Ease of maintenance also the
lower essential advantage
sensitivity to calm brake discs
temperatures on the test bench can
extreme loads are simulated
the engines are further developments of the
proven four-cylinder n100 series 2
the performance vote with high
torques in the lower speed range
takes into account the
Vehicle size and driving resistance also
at top speed, the
carburetor and injection engines the
known high stability on the
two-liter injection engine is through
Retention of the mechanical reason
Systems are particularly sturdy
electronically controlled additional functions
improve the mixture preparation
further the result more favorable
fuel consumption low
Pollutant emissions and good adaptation
on different driving conditions
In addition, contributes to the favorable
consumption of the vehicle as well
low drag also
low rolling resistance in one
special trailer can be the rolling resistance
at becomes isolated from environmental influences
even at high speeds
be determined
with elaborate electronic
Measuring devices will reduce consumption in the
driving for the different
gearbox variants exactly determined
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next to the mechanical four-speed gearbox
is a new 5 gear gear as well
a new four-speed automatic for
disposal
For the first time, the automatic transmission can be switched on
wish with two sound programs
be equipped
a standard program and a
additional economy program the one
especially quiet and economical way of driving
allows
[Music]
at the final vote of the
Chassis are the elasto
kinematic properties of front
and rear axle so on each other
Voted that a maximum
Driving safety and driving comfort achieved
becomes
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done on largely finished vehicle
different noise measurements here
require ever increasing demands
new ways of rating one
Specially tuned art head technique
allows using a digital
record an accurate and
reproducible interior noise
Appraisal for the outside noise
Measurement can be done in the large room test bench
also free-field conditions simulated
become
the result of several years of research
Construction calculation test bench
Simulation real vehicle testing
objective vehicle measurement as well
subjective assessment is finally
one from scratch and in the details
completely new series of theirs
Development here are just a few key points
and cutouts could be shown
The products of
daimler-benz based on high
for the first time in
a more compact vehicle series
realize
to the known advantages of a high
quality standards high life and
stable in value
driving characteristics of high comfort
contemporary stylistics and about German
kicker active and passive safety
now come the other benefits
lower air resistance low
weight and as a result hereof
low fuel consumption with
the new models 190 and 190 e became
finally the promotion realized the
from the beginning a self-evident goal
was also this compact vehicle is
a real mercedes