阻尼可控式半主动悬架系统技术解析damping controllable system

阻尼可控式半主动悬架系统技术解析damping controllable semi active suspension system
Semi active suspension can be regarded as the variable characteristics of the spring and (or) suspension shock absorber composition, although it can not be withInput outside of optimal control and regulation, but it according to various conditions of storage in the computer next spring and shock absorberParameter optimization of instructions to adjust the stiffness of the spring and shock absorber
damping state. Changing the spring stiffness in the semi active suspension systemThan a change of damping is difficult, so in the semi-active suspension system with variable damping suspension system is the most common. Semi active suspension structureSimple, the price is relatively cheap, so people pay more and more attention.Semi active suspension system control functions are as follows: 1. The anti car tail squat control; prevent shifting impact control;To prevent the head sinking control; the anti roll
control; the car at high speed body down control.(1) Delphi two gear automatic real-time damping adjustment system (BBR\'PD). Delphi (Delphi) the company's two gearReal time automatic damping adjustment system (Bi *late Real a [lime Damping, BSRTD) is a kind of semi - active, since the two gearThe damping adjustment system, human information transmission body and wheel movement, speed, angle, brake and other multiple sensor based, canTo make real-time response of pavement condition and
driving condition, both factory ride comfort and handling performance.The system consists of 4 with piston valve two gear controllable damping shock absorber, 4 motion sensors and 1 controller, electric controlUnit constitute, and optional 1 steering angle sensor and the mode selection switch. System structure as shown in fig..Delphi two gear automatic real-time damping adjustment system of BSRTD (see PPT)(2) Tenneco continuous electronic control suspension system (CES}. Danake (Tenneco)
continuous electronic control suspension system, is a kind of semi active suspension system, offers a continuous adjustment of the suspension damping according to road conditions and driving conditions. CES system can provide superior performance and manipulation, nondestructive ride comfort performance, and can switch between different modes of. The core part of CES is an advanced valve control system, through joint development with Ohlins of Racing company, the valve control system
integrated factory electronic controller and chassis sensor, so that the common role to achieve the best damping characteristics.Tenneco continuous electronic control suspension system CES (see PPT)(3) ZF Sachs continuous damping control system (CDC). ZF Sax (ZF Sachs) continuous Damping Control Systems Inc. (Continuous Damping Control, CDC) is a kind of semi active suspension system, the system by applying a damping force optimization for each independent wheel, can significantly improve the
vehicle handling stability, comfort and safety. The continuous damping control system (CDC) is mainly composed of the controllable damping shock absorber, the electronic control unit, sensor and so on, the system structure as shown in fig..ZF Sachs continuous damping control system (CDC) (see PPT)(4) the Delphi magneto rheological damper (MagneRide) USA Delphi (Delphi's MagneRideTM isA high performance, semi active suspension control system, with the person information input from monitoring
body and wheel motion sensor as the foundation, make a response in time, provide fast, smooth and continuous variable damping force, make the vehicle body vibration and reduce the tire road adhesion increases with various.The system consists of using magneto rheological (MR) fluid (iron particles dispersed) constitute medium column damper, sensor and controller etc.. Through the sensor suspension damping system operation, change by adjusting the current of the magnetic fluid shear stressTo control the damping force.
Semi active suspension system of electromagnetic rheological damper to the damping continuously adjustable has broad application and development prospects.
半主动悬架可视为由可变特性的弹簧和(或)减振器组成的悬架系统，虽然它不能随
外界的输人进行最优控制和调节，但它可按存贮在计算机内部的各种条件下弹簧和减振器的
优化参数指令来调节弹簧的刚度和减振器的阻尼状态。

在半主动悬架系统中改变弹簧刚度要
比改变阻尼困难，因此在半主
动悬架系统中以可变阻尼悬架系统最为常见。

半主动悬架结构
简单、价格相对便宜，因此越来越受到人们的重视。

半主动悬架系统的控制功能有如下几种:①防车尾下蹲控制;②防止换挡冲击控制;
③防止车头下沉控制;④防横摇控制;⑤汽车高速行驶时车身下降控制。

(1) Delphi两挡位实时自动阻尼调节系统(BBR'PD)。

德尔福(Delphi)公司的两挡位
实时自动阻尼调节系统(Bi一*late Real一[lime Damping,
BSRTD)是一种半主动、两挡位自动阻尼调节系统，基于车身和车轮运动、车速、转角、制动等多个传感器的输人信息，能够
对路面状况和驾驶工况作出实时响应，兼顾厂乘坐舒适性和操控性能。

该系统由4个带活塞阀的两挡位阻尼可控减振器、4个运动传感器和1个控制器、电控
单元等构成，并可选配1个转向传感器和模式选择开关。

系统结构如图所示。

Delphi两挡位实时自动阻尼调节系统BSRTD（见ppt）
(2）Tenneco连续控制电子悬架系统(CES}。

大纳克(Tenneco)公司的连续控制电子悬架系统是一种半主动悬架系统，能够按照路面条件和驾驶状况对悬架阻尼进行连续性调整。

CES系统既能提供优越的操控性能，同时无损驾乘的舒适性能，并能在不同模式间进行切换。

CES的核心部位是一套先进的阀控系统，经过同ohlins Racing公司的联合开发，该阀控系统整合厂电子控制器和底盘传感器，使之共同作用以实现最佳的阻尼特性。

Tenneco连续控制电子悬架系统CES（见ppt）
(3) ZF sachs连续阻尼控制系统(CDC)。

采埃孚萨克斯(ZF Sachs )公司的连续阻尼控制系统(Continuous Damping Control, CDC)是一种半主动悬架系统，该系统通过对每个独立的车轮施加优化的阻尼力，能够显著地改善汽车的操纵稳定性、舒适性和安全性。

连续阻尼控制系统(CDC)主要由阻尼可控减振器、电控单元、传感器等构成，系统结构如图所示。

ZF Sachs连续阻尼控制系统(CDC) （见ppt）
(4) Delphi磁流变减振器(MagneRide)美国德尔福(Delphi公
司的MagneRideTM是
一种高性能、半主动悬架控制系统，以来自监测车身和车轮运动传感器的输人信息为基础，作出实时响应，提供快速、平顺和连续可变的阻尼力，使车辆减少车身振动和增加轮胎与各种路面的附着力。