5%20CVM%20and%20Convertible%20Top, BMW educational info, Dokumentacja

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//-->Table of ContentsCVM AND CONVERTIBLE TOPSubjectIntroductionPage.........................................................................................3System ComponentsTop and Frame ..................................................................................CVM.........................................................................................Hydraulic Unit ....................................................................................Hydraulic Cylinders ............................................................................Hydraulic Solenoids ...........................................................................Storage Cover Motor .........................................................................Windshield Frame Lock Assembly .....................................................Top Switch ........................................................................................Hall Sensors ......................................................................................Angle Hall Sensors ............................................................................Compartment Floor Micro Switch ......................................................IPO45679101112131920......................................................................................... 22System Operation ................................................................................... 23Emergency Operation ............................................................................. 28Comfort Operation .................................................................................. 29DiagnosisHard Top......................................................................................... 30......................................................................................... 33Workshop Hints ...................................................................................... 35CVM Worksheets .................................................................................... 39Review Questions ................................................................................... 41Initial Print Date: 02/2000Revision Date: 1/22/01CVM AND CONVERTIBLE TOPModel: E46 ConvertibleProduction Date: 01/00Objectives:After completing this module, you should be able to:••••••••••Describe the lowering and raising sequence of the Convertible soft top in details.Name all the sensors and their functions that are used to open or close the soft top.Identify and describe electro-hydraulic components used in the Convertible top.Describe the information that is exchanged between the CVM II and the GM V.Describe the operation of the Storage Compartment Cover Lock Motor.Identify all the hall sensors, angle hall sensors and micro-switches used in the soft top.Explain all of the pre-conditions for Convertible soft top operation.Describe the wiring of the Hard Top Locks on the left and right.Diagnosis a Faulted CVM System.Describe the locking / unlocking procedure for the manual soft top.2CVM and Convertible TopINTRODUCTIONPurpose of the System:The E46 Convertible-top is a fully automatic electro-hydraulic system that completely opensand closes the soft-top using hydraulic cylinders and electric motors. It consist of the con-vertible module (CVM II) which controls and monitors the complete operation of the system.The CVM II interacts with the General Module which controls the operation the convertible-top storage compartment cover and window operation when lowering or raising the soft-top.Convertible top features:• Electro-hydraulic operation.• Comfort opening using FZV key or door lock cylinder.• Comfort closing using only the door lock cylinder (No anti-trap protection).• Glass window• Top operation monitored using hall sensors and hall angle sensors.Convertible TopModuleHydraulic Unitw/ SolenoidsGeneral ModuleStorage Cover Unlock MotorTop and FrameTop SwitchSolenoid ValveBlockART-E46ICBODY3CVM and Convertible TopComponents of the System:Top and FrameThe top frame is similar to the E36iC with modifications for the adoption of the hydrauliccylinders used for raising/lowering the top. The unlock motor and gear drive assemblies areattached to the front of the top frame as on the E36iC.The convertible top consists of three layers:•The outer layer is fabric with a non-replaceable glass rear window.• A middle fleece liner is installed between the fabric and inner liner for sound andweather insulating purposes.• The inner liner is similar to the E36iC and is attached to the top frame so that itstretches tight when the top is closed.OUTER FABRICFLEECE LINERINNER LINERART-TOPLAYERS4CVM and Convertible TopConvertible-Top Module (CVM II)The convertible-top module (CVM II) is installed in the left rear quarter panel behind the inte-rior trim panel. It contains the processing, controlling and monitoring electronics for thecomplete top operation. The CVM II communicates with the GM over the K-Bus for opera-tion of the top storage cover and windows.Operation of the hydraulic cylinders is controlled via final stages and solenoids mounted onthe hydraulic unit and top frame.The CVM is fully diagnoseable and contains a fault memory for storage of monitored faults.Diagnosis is carried out over the K-Bus with the DIS or MoDiC.CVM II61E46CVM0300CVM II61E46CVM04005CVM and Convertible Top [ Pobierz całość w formacie PDF ]

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