Peterbilt 367 2017 - Page 183

OPERATINGTHEBRAKESYSTEM
AdvancedABSwithStability
Control
Thisvehiclemaybeequipped
withanoptionalElectronicStability
Control(ESC).ESCisafeaturefor
ABS-equippedvehiclesthatreduces
theriskofrollovers,jackkningand
otherlossofcontrolsituations.ESC
featuresincludeRollStabilityProgram
(RSP)andYawControl.
Duringoperation,theECUofthe
Bendix®AdvancedABSsystem
constantlycomparesperformance
modelstothevehicle’sactual
movement,usingthewheelspeed
sensorsoftheABSsystem,aswell
aslateral,yaw,andsteeringangle
sensors.Ifthevehicleshowsa
tendencytoleaveanappropriatetravel
path,orifcriticalthresholdvaluesare
approached,thesystemwillintervene
toassistthedriver.
RollStabilityProgram
Bendix®RSP ,anelementofthe
overallESCsystem,addresses
rolloverconditions.Inthecaseof
apotentialrollevent,theECUwill
overridethethrottleandquicklyapply
brakepressureatallwheelendsto
slowthevehiclecombination.The
levelofbrakingapplicationduringan
RSPeventwillbeproportionaltoroll
risk.
ARealWorldExampleofHowthe
RSPSystemOperates
Excessivespeedforroadconditions
createsforcesthatexceedthe
thresholdatwhichavehicleislikelyto
rolloveronahigher-frictionsurface.
Thesystemautomaticallyreduces
enginetorqueandappliestheservice
brakes(basedontheprojectedrollover
risk)toreducethevehiclespeed,
therebyreducingthetendencytoroll
over.
RSPExample
(03/17)Y53-6076-1B14-25
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