#URTIS-ANUAL
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#REEP4ORQUE
n
$ETERMINESTHEAMOUNTOFTORQUEAPPLIEDTOTHEVEHICLEATASTOPWITH
#REEP?4ORQUE?4RQ-
n
NOTHROTTLEINPUTTOEMULATETHEFEELOFANAUTOMATICTRANSMISSION
AUTOMOBILESEE&IGURE
7!2.).'
7HENINTERLOCKISENGAGED
CREEPTORQUEALLOWSVEHICLEPROPULSIONIFADIRECTIONISSELECTEDEVEN
THOUGHNOTHROTTLEISAPPLIED#ARESHOULDBETAKENWHENSETTINGUP
THISPARAMETER
)FPEDALBRAKINGISENABLEDSEEPAGE CREEPTORQUEIS
PROGRESSIVELYDISABLEDASBRAKEISAPPLIEDSOASTOPREVENTTHEMOTOR
FROMDRIVINGINTOTHEBRAKESANDTHUSWASTINGENERGY
"RAKE&ULL#REEP#ANCEL
n
$ETERMINESTHEAMOUNTOFBRAKEPEDALINPUTTHATWILLFULLYCANCELTHE
"RAKE?&ULL?#REEP?#ANCEL?4RQ-
n
CREEPTORQUE!MOUNTOFCANCELLATIONISPROPORTIONALTOTHEBRAKEINPUT
#REEP"UILD2ATE
nSEC
$ETERMINESHOWFASTTHEPROGRAMMEDCREEPTORQUEBUILDSWHEN
#REEP?"UILD?2ATE?4RQ-
n
ADIRECTIONISSELECTED
#REEP2ELEASE2ATE
nSEC
$ETERMINESHOWFASTTHEPROGRAMMEDCREEPTORQUERELEASESWHENTHE
#REEP?2ELEASE?2ATE?4RQ-
n
BRAKEISCANCELLINGTHECREEPTORQUEORWHENTHEDIRECTIONSWITCHESARE
CLEAREDNEUTRAL
'EAR3OFTEN
n
!DJUSTSTHETHROTTLETAKEUPFROMLINEARSETTING TOAN3CURVE
'EAR?3OFTEN?4RQ-
n
,ARGERVALUESCREATESOFTERTHROTTLETAKEUPINFORWARDANDREVERSE
3OFTENINGISPROGRESSIVELYREDUCEDATHIGHERSPEEDSSEE&IGURE
"RAKE4APER3PEED
nRPM
$ETERMINESTHEMOTORSPEEDBELOWWHICHTHEMAXIMUMBRAKINGCURRENT
"RAKE?4APER?3PEED?4RQ-
n
ISLINEARLYREDUCEDFROMTOATZEROSPEEDSEE&IGURE
3ETTINGTHETAPERSPEEDTOOLOWFORTHEBRAKINGCURRENTWILLCAUSE
OSCILLATIONSINTHEMOTORASITATTEMPTSTOBRAKETHEVEHICLETOASTOP
ONVERYSTEEPSLOPES
4APERSPEEDISAPPLICABLEONLYINRESPONSETOBRAKEPEDALINPUTIT
DOESNOTAFFECTDIRECTIONREVERSALBRAKINGORNEUTRALBRAKING
2EVERSAL3OFTEN
n
,ARGERVALUESCREATEASOFTERREVERSALFROMREGENBRAKINGTODRIVE
2EVERSAL?3OFTEN
n
WHENNEARZEROSPEED4HISHELPSSOFTENTHETRANSITIONWHENTHEREGEN
ANDDRIVECURRENTLIMITSARESETTODIFFERENTVALUES
-AX3PEED$ECEL
nSEC
)NSOMEAPPLICATIONSTHE-AX3PEEDVALUEISCHANGEDFREQUENTLY
-AX?3PEED?!CCEL?4RQ-
n
THROUGH6#,OROVERTHE#!.BUS4HE-AX3PEED!CCELPARAMETER
CONTROLSTHERATEATWHICHTHEMAXIMUMSPEEDSETPOINTISALLOWEDTO
CHANGEWHENTHEVALUEOF-AX3PEEDISLOWERED4HERATESETBYTHIS
PARAMETERISTHETIMETORAMPFROM4YPICAL-AX3PEEDRPMTORPM
&OREXAMPLESUPPOSEYOUCHANGE-AX3PEEDFROMRPMTO
RPM)F4YPICAL-AX3PEEDISRPMANDTHERATEISSEC
ONDSITWILLTAKEn SECONDSTORAMPFROM
RPMTORPM