Hệ thống treo (Suspension System ) docx

Diagnosis Technician>>Suspension and Steering>>Suspension System
HÖ thèng treo
SUSPENSION SYSTEM
Diagnosis Technician>>Suspension and Steering>>Suspension System
Suspension System
Description
Si
Shock absorber
Torsion beam
Spring
S
pr
i
ng
Stabilizer
Shock absorber
Suspension arm
Lower arm
(1/1)
Diagnosis Technician>>Suspension and Steering>>Suspension System
Suspension System
Oscillation and Driving Comfort
Sprung weight
1.Sprung weight and
unsprung weight
Unsprung weight
Sprung weight
Sprung

weight
Sprung weight

Uiht
U
nsprung we
i
g
ht
Unsprung weight
(1/3)
Diagnosis Technician>>Suspension and Steering>>Suspension System
Suspension System
Oscillation and Driving Comfort
(1) Pitching
2.Oscillation of sprung
weight
(2) Rolling
(3) Bouncing
(4) Yawing
(2/3)
Diagnosis Technician>>Suspension and Steering>>Suspension System
Suspension System
Oscillation and Driving Comfort
3.Oscillation of unsprung
weight
(1) Hopping
(2) Tramping
(3) Wind-up
(3/3)
Diagnosis Technician>>Suspension and Steering>>Suspension System
Suspension System
Suspension Types and Characteristics

(1) Ri id l i
(1)

Ri
g
id
ax
l
e suspens
i
on
(2) Independent suspension
(1/3)
Diagnosis Technician>>Suspension and Steering>>Suspension System
Suspension System
Suspension Types and Characteristics
(1) Ri id l i
(1)

Ri
g
id
ax
l
e suspens
i
on
(2) Independent suspension
(1/3)
Diagnosis Technician>>Suspension and Steering>>Suspension System

Suspension System
Suspension Types and Characteristics
(1) Ri id l i
(1)

Ri
g
id
ax
l
e suspens
i
on
(2) Independent suspension
(1/3)
Diagnosis Technician>>Suspension and Steering>>Suspension System
Suspension System
Suspension Types and Characteristics
(1)Trailing arm type with torsion beam
(2)Parallel leaf spring type
(3)Leading arm type with lateral rod,
trailing arm type with lateral rod
(4)4-link type
(2/3)
Diagnosis Technician>>Suspension and Steering>>Suspension System
Suspension System
Suspension Types and Characteristics
(1)Trailing arm type with torsion beam
T ili
T

ra
ili
ng arm
Torsion beam
Stabilizer bar
No lift-up
(2/3)
Diagnosis Technician>>Suspension and Steering>>Suspension System
Suspension System
Suspension Types and Characteristics
(2)Parallel leaf spring type
Rear axle
Leaf spring
(2/3)
Diagnosis Technician>>Suspension and Steering>>Suspension System
Suspension System
Suspension Types and Characteristics
(3)Leading arm type with lateral rod,
trailing arm type with lateral rod
Lateral control rod
Leading arm
Front suspension
Lateral control rod
Rear suspension
Trailing arm
(2/3)
Diagnosis Technician>>Suspension and Steering>>Suspension System
Suspension System
Suspension Types and Characteristics
(4)4-link type

Upper control arm
Lateral control rod
Lower control armUpper control arm
Stabilizer
(2/3)
Diagnosis Technician>>Suspension and Steering>>Suspension System
Suspension System
Suspension Types and Characteristics
(1) Macpherson strut type
(2) Double wishbone type
•Semi-trailing arm type
Suspension arm
(3/3)
Diagnosis Technician>>Suspension and Steering>>Suspension System
Suspension System
Suspension Types and Characteristics
Stabilizer link
Stabilizer bar
Lower arm
Suspension member
(3/3)
REFERENCE:
Spring offset
Diagnosis Technician>>Suspension and Steering>>Suspension System
Suspension System
Suspension Types and Characteristics
Upper arm
Coil spring
Lower arm
Tire-to-ground

camber
camber
Tread
Tread
(3/3)
Diagnosis Technician>>Suspension and Steering>>Suspension System
Springs
Characteristics
1. Elasticity
1.Elasticity/
2.Spring rate (constant)
Load
2. Spring constant
W
K =
W
a
Where W = external force (load), in N
a = amount of contraction
(deformation), in mm
k = spring constant, in N/mm
W1
W2
W3
a1
a2
a3
= k (constant)
W1
a1

W2
a2
W3
a3
(1/2)
Diagnosis Technician>>Suspension and Steering>>Suspension System
Springs
Characteristics
3.Spring oscillation
Oscillation
tt
3. Spring oscillation
pa
tt
ern
A
mplitude
Time
A
(2/2)
Diagnosis Technician>>Suspension and Steering>>Suspension System
Springs
Types of spring
1.Outline
Suspension spring
Metallic spring
Non
metallic spring
Leaf spring
Coil spring

Torsion bar spring
Rubber spring
Non
-
metallic

spring
Air spring
Leaf spring Coil spring Torsion bar spring
Fixed end of
Fixed

end

of

torsion bar
Torsion applied to end of
bar by lever
Rubber spring Air spring
(1/6)
Diagnosis Technician>>Suspension and Steering>>Suspension System
Springs
Types of spring
2.Leaf springs
Center boltEye
Clip
Shackle
Span
Nip

Camber
(2/6)
Diagnosis Technician>>Suspension and Steering>>Suspension System
Springs
Types of spring
Silencer pads
Measure to reduce inter-leaf friction
Taper end
Helper springs
Helper spring
Main spring
(3/6)
Diagnosis Technician>>Suspension and Steering>>Suspension System
Springs
Types of spring
Spring rod
3.Coil springs
Progressive spring
Load
Load
Taper coil spring
Progressive
spring
Unequal-pitch spring Conical springs
o
ad
Flexure
L
o
(4/6)

Diagnosis Technician>>Suspension and Steering>>Suspension System
Springs
Types of spring
4.Torsion bar springs/
5.Rubber springs
4. Torsion bar springs
Torsion
Opposing torsion Fixed end of torsion bar
5. Rubber springs
Torsion applied to end of bar by lever
Rubber cushion
Springs bumper
Springs

bumper
(5/6)
Diagnosis Technician>>Suspension and Steering>>Suspension System
Springs
Types of spring
6.Air springs
Air chamber
Rolling diaphragm
(6/6)
Diagnosis Technician>>Suspension and Steering>>Suspension System
Shock Absorbers
Description
Spring
Tire
Shock absorber
Suspension

li k & l
li
n
k
age
&
ax
l
e
without Shock absorber
Amplitude
with Shock absorber
Time
(1/1)