奥迪全系自学手册（SSP）：SSP264_The Brake Assist System.pdf

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1、Service.Self-studyprogramme264TheBrakeAssistSystemDesignandfunctionAccidentstatisticsshowthatin1999alone,Whatdoesthismean?493,527accidentsinGermanywerecausedbyStudieshaveshownthatmanydriversdonotdrivererror.Manyaccidentscausedbyignoringapplythebrakessuffici

2、entlyinemergencysitua-right-of-way,drivingonthewrongsideofthetionsduetolackofexperience.Thatmeansthatroad,inappropriatespeed,insufficientdistancethegreatestpossiblebrakingeffectisnotfromothervehiclesandsoonmighthavebeenattainedbecausethedriversdidnotpressth

3、epreventedhadthevehiclesbeenabletobrakebrakepedalhardenough.faster.Therefore,thebrakeassistsystemwasdevelopedtosupportthedriverincriticalbrakingsituations.S264_042NewWarningNoteTheself-studyprogrampresentsthedesignandPleasealwaysrefertotherelevantServicelit

4、eraturefunctionofnewtechnology.forallinspection,adjustmentandrepairinstructions.Thecontentswillnotbeupdated.2TableofcontentsIntroduction...................................4Thehydraulicbrakeassistsystem................8Design,comparisonandfunction...........

5、......8Electricalcomponents..........................14Functionaldiagram............................19Themechanicalbrakeassistsystem.............20Designandfunction...........................20Service.....................................27Testyourknowledge.

6、..........................283IntroductionEarlyinMechanicalautomobiledevelopment,thebrakesplayedabrakesrathersubordinaterolebecausethefrictioninthedrivetrainwassogreatthatavehiclewasslowedsufficientlyevenwithoutthebrakesbeingused.Increasingpowerandspeedaswel

7、lascon-stantlyincreasingtrafficdensityledtotheconsid-erationinthe20sofhowanappropriatebrakesystemcouldprovideacounterbalancetogreaterpoweranddrivingperformance.Butonlyafteradvancesinelectronicsandmicro-electronicscouldsystemsbedevelopedwhichcouldreactfasten

8、oughinemergencysituations.ActivewheelspincontrolTheancestoroftheelectronicbrakesystemsissystemstheABS,which,sinceitsintroductionin1978,hasABSbeencontinuouslyfurtherdevelopedandTCSextendedbyadditionalfu