自调高减震器介绍

g Reset Coil Spring / 重新调整螺旋弹簧 g Calculate Ride Frequency / 计算乘车振动数
g Target leveling height / 设定目标提升高度 g Measurement of input data for Self Leveling
/ 测量对于自动提升输入值 - Max. internal pressure, Piston velocity, Stroke,Temp.
Piston Valve Ass’y
/活塞阀
Body Valve Ass’y /底阀
Check Valve
/单向阀
Seal Ass’y
/密封
Taper Pump Rod
泵杆
Holder Ass’y
/ 固定件
Diaphragm
/隔膜橡胶
Initial
初期
Low pressure chamber
Principle of Operation/工作原理
Assembly Line / 自动调整车高减振器的组装线
General view of Assembly line / 生产线全图
Sub assembly line(in clean room)
Roll Curling M/C / 最终密封机
Performance Tester / 性能试验机
优优化化自自调调整整车车高高减减震震器器
Design Points / 设计要点
■ Ride Frequency Design / 乘坐频率设计 - Minimize change of ride freq. under increasing load
/尽管负荷的增加，把乘坐频率的变化减到最少
■ Developing low friction Seal / 开发低摩擦的密封圈 ■ Leveling Time : Run 2min. Max / 提高车身时间：车辆行驶2分钟内
-
100%
-
-
100%
-
-
• Car Maker : GM, GMDAT, Ford, DCX, Toyota, Subaru, Mazda, HMC,KMC,SYMC • Trends : application rate of SUV & SUT is increase
Applications / 市场使用情况
■ Air Spring characteristics
/ 可变气弹ြଝ๴ؒ
: The heavier the pay-load, the stiffer the spring
/ 负荷愈重，弹簧愈硬
Components / 构成品
Piston Rod
/ 活塞杆
Relief Valve Ass’y
/调压阀
M
Loaded
装载
Decreasing Height
Driving (Reb.)
行使（回弹）
Driving(Comp.)
行驶（压缩）
Rebound stroke
Pump chamber
Compression stroke
End of Leveling
完成提升
Unloaded
卸货
Lift
rod Leveling port
最大内部气压、活塞速度、行程、温度
(Example) Design Concept /设计概念
Design of Initial condition / 初期条件的设计
Classification
SOR
CVW
352.5
Weight
Leveling Position
483
Design
↑
GVW
581
Conv.
■ Added Air Spring at rear suspension
/ ၫ减ಂ,սᨸ়空气弹ြ
: Installed high pressure Air Chamber in damper
/ 在减震器上安装高压气室
■ Raise the vehicle height by reaction force of Air Spring on driving.
-
(=Reaction Force)
-
Stiffness (Kgf/mm)
-
Modified Coil Spring
Reaction Force(at Lp,Kgf)
Application rate
Europe
USA
ASIA
1 ~ 3%
-
-
2 ~ 5%
30 ~ 100%
-
100%
-
-
8 ~ 12%
-
-
15 ~ 30% 40 ~ 100%
10%
100%
-
-
20 ~ 60% 50 ~ 75% 10 ~ 50%
35 ~ 35% 30 ~ 40%
-
100%
-
-
100%
-
/ /设设计计确确认认 MMeeaassuurreemmeennttooffVVeehhiicclleetteesstt
/ / 测测量量试试车车
g Vehicle Weight Condition / 车重条件 g Suspension Geometric Data / 悬架几何数据 g Coil Spring Rate / 弹簧刚度 g Self Leveling Data / 自动提升数据
Vehicle Evaluation / 车辆评价
■ Leveling performance
Target 目标值
Leveling distance 提升距离
Within 4 Km distance 4 公里之内
Leak rate 漏出率
Less than10mm after 24hrs 24小时后小于10毫米
最好的性能和耐久性 最好的有效重量和成本控制设计
性能
低摩擦力油封 提升性能
. 优化油封 - 低摩擦力 - 控制油气流通 检查密封
耐久性
防尘油封 安全性减压阀 清洁度
. 防尘密封 (刮刀式)
. 减压阀 :在非正常条件下 控制最大内部压强
降低重量
材料 - 轻量化 - 高强度 结构简化
. 材料变更 (铝, 塑料)
Response time 反应时间
Less than 10 sec. 小于10秒
Result 结果
R/Height(mm)
480 460 440 420 400 380 360 340
0
ACT. Target
1
2
3
4
5
Distance (Km)
R/Height(mm)
480
Target ACT.
460
技术介绍 : 自调整车高减震器
13 June. 2007
Suspension R & D Center
Global MANDO
System Description / 产品描述
Purpose / 产品开发目的
■ Automatically maintain levels of ride height under various loading conditions /在各种路况情况下，自动保持乘车高度。 . Application : MPV, SUV,WAGON /适用车型：多功能性能性车, 运动性多功能车,小型客车 . Adjusting ride height by the vehicle movement without additional power supply /不追加电源的供应，只使用车辆行驶中的运动调整车高。
▶Oil Flow /ৃʄஎ : Pump chamber / 泵‫ܯ‬ →Outlet V/V / 输ෆ阀 →HPC / 高压气‫ܯ‬
▶ HPC pressure ↑ / 高压‫ܯ‬气压ս‫ۥ‬ →Rod & Height ↑
▶Height return at CVW /复ॴ空载环境ଝ车高
/ ဥ֜杆车高ս‫ۥ‬
It depends on driving condition (road, speed) ：行驶条件路况左右提升率(路况、车辆速度）
After 2~3km driving
1/4 Car Structure / 1/4 车模型
Suspension Diagram / 减振器简图
Characteristics Description / 特性描述
Stiffness (Kgf/mm)
6.32
Coil Spring
Coil Spring Ratio
0.606
Wheel Rate (Kgf/mm)
-
Stiffness (Kgf/mm)
-
Self Levelizer
Damper Ratio
0.952
(before pumping at Lp)
Leveling Force (Kgf)
▶Oil Flow /ৃʄஎ
: HPC / 高压气‫ܯ‬
▶Oil Flow / ৃਾ动
→Leveling port /ந‫ۥ‬๦Ũ
:Pump chamber& HPC open →LPC / ૹ压气‫ܯ‬
/ 泵‫ܯ‬高压气‫ܯ‬开϶
Leveling Force Simulation/提升力模拟
43mm UP
Leveling port
High pressure chamber
Diaphragm
▶CVW condition /空载环境
▶Leveling port Open /提升通道开放
▶Pump chamber & Leveling port Close
/泵‫ܯ‬ந‫ۥ‬๦Ũ关闭
▶Oil Flow / ৃʄஎ : LPC / ૹ压气‫ܯ‬ → Pump Rod / 泵杆 → Inlet V/V / 输ં阀 → Pump chamber / 泵‫ܯ‬
Sport Lower middle class Wagon Middle & upper middle class Sport SUV/MPV Often sBaidu Nhomakorabeaandard for 7 seater VAN Motorway service vehicles Special Police cars Vehicle Ambulance car Fleet vehicle
440
420
400
380 0 0.5 1
24 48 64 72
Time(Hr)
R/Height(mm)
500
ACT.
Target
480
460
440
420
400
380 0 1 2 3 4 5 6 10
Time (Sec.)
Applications / 市场使用情况
Vehicle grade
Lower middle class Sedan Middle & upper middle class
Hyundai
Kia
SsangYong
GMDAT
GM
SANTA FE
SORENTO
Chrysler
MUSSO SPORT
Ford
WINSTORM
Volvo
CADILLAC SRX
YUKON
Opel
Mercedes Benz
VOYAGER
PACIFICA
GALAXY
XC90
VECTRA WAGON
MERCEDES BENZ C-CLASS WAGON
- Stroke,Leveling position,Joint Type,Space of Installation / 行程、提升位置、连接型，组装空间
g Dimension / 尺寸 - Lmax. / Lmin. / Stroke, Leveling Position, Mountings /最大回弹尺寸/最小压缩尺寸/行程、提升位置、上安装部
. 简化
(片式阻止阀)
Design Procedure / 设计程序
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/ /设设定定初初期期条条件件 DDeesisgignnVVeerrifiifcicaatitoionn
/ 行驶中使用空气弹簧的反力提高车身。
With Normal Damper
使用一般减振器
■ Control the coil spring characteristics concerning
to Air Spring.
/ 控制弹簧的特性
With Self-Leveling Damper
使用自动调整车高减振器
g Volume Condition(HP, LP Chamber) /体积条件（高压气室、低压气室）
g Calculate the performance in varying stroke & Vehicle weight condition / 计算在各种行程及车辆负荷情况下的性能 ⇒ Pressure, Reaction force, Spring stiffness / 压力、反力、弹簧硬度