F01 Workbook - Module 1

1 Init ial Pri nt Date: 01/09 Table of Conte ntsSu bje ctPageChassis and Susp ension ..7 Front Ax le ..8 Virtu al Pivot Point ..9 New Re ar Axl e ..10 Rea rAxle Data ..11 Rea rAxle Alignment Proced ures ..11 Dam ping and Sus pension ..18 Brakes ..19 Tec hnical Data, front bra kes ..19 Tec hnical Data, rear brakes ..19 Tires and Wheel s ..19 Steerin cDriving Systems ..24 History of Dyn amic Driving Systems ..24Bu sSystem Overview for Dy namic Dr iving Sy st ems ..25 Cha nge sto Driving Dy namics Control ..28 New Con trol Units ..29 Expansi on stag es of ICM control unit ..29 Expansi on stag es of VDM control unit ..29 ICM Co nt rol Unit ..30 Loc ation and Mo unti ng of the ICM Module ..31 Ride -hei ght Sensors ..32 Design and Principle of Op eration ..32 Vers ions ..32 Inter face with ICM Co ntrol Unit ..32F01 Workbo ok -Modul e2 Revision Date: 08/09 Table of Conte ntsSu bjec tPageIntegrated Chassis Ma na geme nt.

2 34 Functi on wit hICMC ontrol Module ..35 Input Signals fro mExter na lSensor s ..35 Outpu tSignals ..35 Driv er Assis tan ce Functions ..35 Central Driv ing Dynami cs and Stee rin gCo ntrol Funct ion ..35 Signal Provisi on ..36 Driving Dyn amics Control ..36 ICM Calibrat ion ..36 Higher-lev el Driving Dyna mic sControl ..37 Obse rvation of the Dr iving Condition ..37 Central Driv ing Dynami cs Cont rol ..37 Coordinat ed Interventionby the Dynamic Driving Syst ems ..38 Driving Dyn amics Control ..40 History ..40 Driving Dyn amics Swit ch ..40 Ope ration and Displa y ..42 Longi tudinal Dyna mic F0x ..49 DSC Functio nal Overview ..49 DSC Displ ays and Controls ..50 New DSC Sy mbols ..50 DSC Mo des ..51 Integration in Dynamic Handling Control ..51 DSC Fun ctions in Detai l ..51 ADB active even when DS Cis of f.

3 51 Brake Mo dulat ion for Increas ing Agility ..52 Table of Conte ntsSu bje ctPageAuto matic Hold ..53Sl ide Detectio face for Adaptive Braki ng Assist ance ..54 Relation ship of DSC and ICM ..55El ectrom echanical Pa rking Brak e(EMF ) ..57 Emer gency Release ..57 Installation Mo de ..57 Runni ng -in theBrakes ..57 EMF Actuating Unit ..57 Roll-away Monito ring ..58 Sche matic EM F ..59 Lateral Dyn amic sSystems ..62 Integrated Active Ste ering ..62 Sche matic, Integral Acti ve St ee ring ..63 Ove rvi ew ..64Si gnal sfrom External Se nsors ..64 Con trol and Modulation of Stee ring ..65Di str ibuted Functions ..66 ComponentsofIntegra ted Acti ve Steering ..67 Rea rAxle Steering Co ntrol ..67 Func tio ns of Integrate dActiv eStee ring ..70Lo wSpeed Range ..70 Hig hSp eed Range ..71 Table of Conte ntsSu bjec tPageHand ling stabilizat ion by IAL when unde rsteering.

4 72 Handling stabilizationby Integr ated Act ive Ste ering und er -spl it br ak ing conditions ..72A) Without DSC ..72B) With DSC ..73C) Wi th DSC and AL ..73D) With DSC, dynami chandling control ler and Inte gratedActi ve Steering ..73 Integrate dActi ve Stee ring spec ial fun cti on ..74 Automa tic snow chain detect ion ..74 Vertical Dynamics System Dynamics Control ..78 Signal Processing ..80 Signal Processing/VDC(2) Controller ..80 Dampi ng Fo rce Adjustm ent ..80 VDC Syst em Co mpo nents ..81 VDM Contr ol Module ..81 Ride Height Sens ors ..81 EDC Sa tellite wi th Da mper ..81 VDC II Damper Operation ..82 Com paris on of VDC 1to VDC 2Da mper ..82 Contro lStrategy ..83 Active Rol lStabilizati on (ARS) ..84Ve rti cal Dynamics Control ..84 Ove rvi ew of ARS Component s ..84 VDM Module ..84 VDM Contro lUn it Inputs.

5 85 VDM Contro lUn it Outputs ..85 Table of Conte ntsSu bje ctPageOscill ating Motor ..86 Active Anti-roll Bar, front ..86 Rea rSuspensionActiv eAnti-r oll Ba r ..87 ARS Hydrau lic Valve Manifol d ..87 Tandem Pump ..88 Radi al Pisto nPump ..88 New Featur e ..88El ectroni cRide He ight Contro l(EH C) ..90EH CCircuit Diagram ..91 DCC and ACC ..94 Truste dDriver Assista nc eSystems ..94 Dynam ic Cruise Control ..95 Ope ration and Displa Cruise Control withSt op &Go functi on ..97 Ope ration and Displa havior in respo nse tothe driver's intention to get out ..99 Adaptive Brake As sistant wi th Warning Functio n ..100 New wa rning function ..100 Setting the advance wa rning ..101 Issuing ofthe warning ..101 Fault states ..102 Com ponents for ACC Stop and Go ..103 Long-rangeradar senso r ..103 Short-rangeradar sens ors.

6 103 Driv er Assis tan ce Systems Operating Unit ..105 Multifunctio nsteering wheel button pad ..105 Workbook -Modu le2 Model: F01/F02 Production: From Start of ProductionAf ter completion of this modul eyou will be able to: Understandthe changes to the front and rear susp ensi on systems onthe new 7 Series Understandthe changes to chassis dynamics systems on the new 7 Series Locate and identif ycomp onents of the Integrate dChass is Management Understandthe ope ration of DCC and ACC Sto pand 1 Wor kbook - Module 2 Through int elligent de sign layout and optimum pack ag espac eutili zati on on the new F01/F02, the basis has bee ncreated fordistinct ly increa sing the dri ving dy namics while impro ving comfortand vehicle vi rtu ally ide ntical wheel load s, agreater track width and alargerwhee lbase have bee nrealized com pared to the predeces sor , deve lopment of the new genera tion chas sis and susp ensio nsyst ems in the new F01/F02 foc used on revolut ion instead of evo -lution.

7 The aim was to set anew benchmar lightweight construction philosophy was cons istent ly pursuedin the de sign of the cha ssis and suspens ion sy is is reflected in the widespreaduse of aluminum, represe ntingan important cont ribution toincreasing comfort and reducing the firs ttime, aBMW Sedan is fitted with adouble wishbonefront axle made of aluminum, asteera ble integra l-V rear axle ,BMW integral active steering (IAL) an dthe innovative dampersystem, the 2nd generati on ver tical dynamics contro l(VDC 2).Th einte grated chassis management(ICM) intelligently links allchassis and susp ens ion co ntrol system s, thus achieving anewlevel of functional qu ality. Fur ther highlights include "Dyna micDrive "(ARS) and afully variable powe rsteering pump to improv efuel econom Axl eDouble pivot spring strut fro nt ax leDoub le wishbon efront axleSuspen sion/damping, frontSteel spring/EDCS teel spring/ VDC 2 Sta bili zerbar, frontPassive or Active (ARS)Passiv eor Active (ARS)Rear axleIntegral IVIntegral VSuspen sion/damping, rearSteel spr ing or Air sprin g/EDCS teel spring orAir sp ring (VDC2)Sta bili zerbar, rearPassive or Active (ARS)Passiv eor Active (ARS)Brake, frontDiscbrake with roto rdiamete rof 34 8mmDisc br ake with rotor diameter of 373mmBrake, rearDiscbrake with roto rdiamete rof 34 5mmDisc brake with rot or diameter of 368mmPar king brakeDrumbrake with EMFDr um brake with EMFW heels/tiresStandard tiresRunflat tires (as standard)

8 Ste eringPower steering (w /Servo tro nic )Power steering with Servotronic(optional IAL)Cha ssis and SuspensionF0 1 Wor kbook - Module 27Fr ont Ax leAdoub le wishbone front ax le as known fro mthe E70 and E71is now also fitted in the F01 comp ariso nwith the double piv ot spring strut front axle on theE65, this front axle desig noffers the followi ng advantages : Hig her tra ns verse acce lera tion isrefl ected in greater vehi cleagility. Improved corneri ng/ste ering and transiti on charact eris ticswhich are particularl yfavorabl ein terms ofrolling motion. Reduc ed inte rference means greater comfo rt. Sh oc kabsor bers that are subject ed to virtually no trans verseforces provide greate rcomf ort. The design layo ut of the doub le wishbo ne front axle facilit atesvert ical dynami cs control (VDC) and all-wheel drive (as on theE70/E 71 )without the ne ed to ad just hei ght and no spri ngtravel loss.

9 Doubl ewishbone front axl es improve directional stabili outsta nding drivi ng dy namics, the excell ent driving co mf ort aswe ll as the exceptional directional stability are factors of thi sdo ublewishb one front axle des ignsoluti on that contribute to ahigh deg reeof drivin gple asure and safety while makin gthe vehi cle ideal forevery day use and providi ng the most relaxi ng drive on longjour introduction of asecond control arm level for wheel control ,which is arranged abo ve the whe el, results in ad diti onal degreesof free dom for the kinem atics of the front axl eas well as for thesuspe nsion/dam ping compared to other designs such as aspri ngstrut front 1 Wor kbook - Module 2 IndexExplanationIndexExplanation1 Spring strut6 Transver se control arm, bottom2 Transverse cont rol arm ,top7 Stabilizer bar3 Swivel bearing8 Tension strut with hydraulic mount4 Wheel bearing9 Front suspension,subframe5St abi lizer linkVirtual Pivot PointThe steer ing pivot axi s(1) of the whee lsu spension is now form edby ajoint at the topA-arm and the vi rtu alpivot point ofthe lowerarm.

10 This allows the st eering pivot axis to be pos itio ned in suc haway as to produc easmall kingpi noffset at hub (3) with sufficientweight is kingpin offs et at hub is adi rect influe nce on the scrub radiuswhich is decisive for transmitting the irregularitie son the road sur -fac eto the steering elow er and upper ar mlevel snow move simultane ously inresponse to whee ldeflectio n. As aresu lt, as the spring compress -es, the wheel pivots in such away tha tthe cam ber does notdecrease as much as is the ca se with aspring strut front ce the two contr ol ar mlevel sundertake the wheel control, thedamp er is virtuall yno longer subjected to transverse forces androtat ional is makes it po ssible to dowithout arolle rbearing asse mbly onthe spring st rut sup port. Instead of this conventionalroller bearing,adamp ing and suppor tunit is inst all ed that takes up all three loadpat hs.