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FRONT SUSPENSION - Electronic Control SU$pension (ECS)
2·13
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R .......
nd
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..
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Rebound
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.....
Internal Operation
of
Shock Absorber
SOFT (low damping forcel
When bounding
The
damping force
is
determined
m~inly
by
thfl
flow
resistance
on
the
b8se
valve
side and
a low
d8mping force
is obtained
by passing oil
in
the
Iowltr part of the piston
through
the checK
v~lve
built
into
the checK nut
end
the orifice (large dia.J
with
no resist8nce.
Whltn rebounding
As
the
piston rod rises, oil
flows
as shown
in
the
figure
on
the left
and the
damping
force
is
determined by the
flow
resistance of the piston
valve.
MEDIUM (medium damping lorcel
Whltn bounding
Compared to SOFT damping force, the orifice
diameter
is
smaller.
piston rod f
low resistance
increases
and the
damping
10lCfl is
the force
combined with
th
e
flow
resi stance
on the rn.se
valve
side.
When rebounding
The
orificfI
diameter
is
smaller
just
as when
bounding and a higher damping force thon at
SOFT
is
obtained.
HARD
(high damping force)
When
bounding
Sin ce
tna orifice
is
closed. oil
in
the
lower
port of
the piston pushes wide the valve
in
the upper part
of
the
piston
and flows
out
so flow resistance
increas
es
and a higher damping
force
than at
MEDIUM
is
obl8ined.
When rebounding
This
is tna
same as when bounding. Since
the
orilice
is
closed.
damping
force
is
at
its
maximum.
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