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1、阻尼可控式半主动悬架系统技术解析 damping controllable semi active suspension systemSemi 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 vari
2、ous 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 se
3、mi-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; pre
4、vent 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 (BBRPD). Delphi (Delphi) the companys two gearReal time automatic damping adjustment system (Bi *late Rea
5、l 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 r
6、ide 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.Delph
7、i 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
8、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 Ohli
9、ns 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). Z
10、F 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 con
11、tinuous 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
12、Delphi (Delphis 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 vibrat
13、ion 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 t
14、he 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
15、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:防车尾下蹲控制;防止换挡冲击控制;防止车头下沉控制;防横摇控制;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(BBRPD)。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
16、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)
