WABCO TAILGUARD - Testing, Protection, and Cable Routing

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6.3 Testing the sensor positions
Inthecaseofliftingandtippingmechanismsforwhichtherearenoempiricalvaluesregardingthepositioningofthe
ultrasonicsensors,potentialsensorpositionsshouldbetestedwhereverpossiblebeforepermanentlyinstallingthem.
Sincesomespecialsituationsoffernosuitableinstallationpositionswhatsoever,incaseofdoubtthesetestsshouldbe
carriedoutasearlyaspossible,especiallybeforeinstallingcomponentsfortheautonomousbrakingsystem.
Thebestwaytotesttheinstallationpositionsisasfollows:
 Theultrasonicsensorsaretemporarilyfastenedinplaceattheintendedinstallationlocationswithvelcrofasteners
oradhesivetape,orusingsuitableclamps.
 TheElectronicExtensionModuleisalsoonlyinstalledtemporarily.
 TheultrasonicsensorsareconnecteddirectlytotheECUwithoutthenalcablerouting
 TheECUissuppliedwithpowerviathepowercable.
 ThediagnosticsocketisconnectedtotheECU.
 Themulti-corecablewhichcarriesthesignalindicatingthatreversegearhasbeenengagedisconnectedasusual
totheGIO12slotontheECU.Theotherend,however,isnotyetconnectedtothereversinglamp.Allthatis
requiredistoconnectthewirewiththepinkinsulationtoa24Vpowersupplytodeliverthesignalfortheengaged
reversegeartotheECU.
 ThesystemcannowbestartedupwiththeaidoftheTEBSEDiagnosticSoftware.The"Braking"optionmustbe
deactivated:
 Afterthesystemhassuccessfullystartedup,itattemptstoteachtheconnectedultrasonicsensorsattheiractual
installationpositions.Ifthisfailsbecausereectionsarebeingpermanentlydetected,therelevantinstallation
positionshavetobeoptimisedordifferentoneshavetobefound.
Installation of the ultrasonic sensors