EF.1-17
Measurement
Value
Min.
Typical
Max.
Unit
R esistance at room temperature20
Inductance
m
Output voltage when crankshaft
is rotating at a speed of 416 revolutions per minute.
m
(i)Technical&characteristicparameter
Performancedata
7.RotatingspeedsensorDG
(a)Function:Whentheinductiontypeofrotatingspeedsensoris
workingwithpulsedisc,relevantinformationconcerningengine
rotating-speedandtheupperstoppointofcrankshaftwillbeprovided
totheignitionsystem(withoutignitiondistributor).
(b)Principal:Thesensorshallworkwithpulsedisc,whichisone
fluteddischaving60teeth(therespectiveplacefortwootherteethis
empty),installedoncrankshaft,androtatesimultaneouslywith
crankshaft.
Whenthediscpassesbyinadegreethatitstoothtipjusttouches
the endof sensor, the pulse disk made from ferromagnetic
materialwillcutthemagnetic force line of permanent magnet
insidesensorto produce an induced voltage on coil used for
arotating-speedsignaloutput.
(c)Installationposition:abovethecoverofchainwheelchamber(M1.
5.4)andonthesameplaneofrearflywheelofengine
.
(d)Mountingtorque
(e)Symptom:unabletostart,etc.
(f)Causeofgeneralfailures:artificalfailure.
(g)Precautionstomaintenance:Checkwhethertheclearance
betweensensor andthesignaltoothonbeltpulleyiswithin
mm,itmaybeadjustedusingspacerwhennecessary.
(h)Simplemeasurementmethod
afterdisconnectionofjoint Havedigitalmultimeteradjustedto
the ohm positionconnecttwopenswithPin2&3 Pin1&2
forM7.9.7)systemofsensorrespectivelyTheratedresistancewhen
at20 shallbe
.
(afterconnectionofjoint)HavedigitalmultimeteradjustedtotheA C
voltageposition,connecttwopenswithPin2&3 Pin1&2forM7.
9.7 system)ofsensorrespectively,and startthe engine,and
itsupposedtohavevoltageoutput.
1 shieldedwire2 permanentmagne
3 coverofsensor4 installationsupport
5 softmagnetcore6 coil
7 Airclearance8 60-2gear
UnitedElectronicenginemanagementsystem-Analysisoffunction/principal/
failureforsystemparts&components
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