WABCO TAILGUARD - Variant: Autonomous Braking Via Separate Valves

16
 AGIOcable,withwhichtheECUtapsthepowersupplyforthereversinglight.Thisenablesthesystemto
detectwhenreversegearisengaged,sothatitthenactivatesthemonitoringoftheareabehindthevehiclewith
TailGUARD™.
 Adiagnosticsocket.Thisisinstalledinaneasilyaccessiblepositionoutsideofthevehicleandisconnectedto
theECUwithitscable.Thediagnosticsocketisusedforconguringthesystem'sparametersandputtingitinto
operation,aswellasfordiagnosingmalfunctions.
 Additionaloptionalcomponents,suchasamonitoringoff-switch,anextrabuzzerandindicatorlamps,canbe
connectedtoadditionalGIOsocketsintheECU.
5.2 Variant: Autonomous braking via separate valves
Withthisvariant,thefollowinglinelinksarerequiredinadditiontotheprecedingvariant:
 AcableviawhichtheECUreceivesthevehiclespeedsignal.Thiscableisroutedeitherdirectlytothevehicle
tachograph,ortoaninterfaceprovidedbythevehiclemanufacturerinaccordancewithISO16844-2("C3signal",
alsocalleda"B7signal").Theothercablewiresarenotusedandmustbeisolated.Thespeedsignalisrequiredby
theECUinordertobeabletomatchtheappliedbrakingpressuretotheactualspeedofthevehicle.
 Otherwiresoftheuniversalcable(whichisonlyusedwiththerstvariantfortappingthepowersupplyto
thereversinglight)areusedtoconnectthetwostoplightssothattheycanbesuppliedwithpowerduringan
autonomousbrakingaction.
Whichadditionalvalves,sensorsandlinelinkshavetobeinstalledsothatanautonomousbrakingactioncanbe
executedwhenapproachinganobjectbehindthevehiclewilldependuponthebrakingsystemofthevehiclein
question.ThisishowthesystemfunctionsonvehiclesequippedwithanABSbrakingsystem:
Required components: Overview