Pem hauv ntej ABS sensor kab
Lub abs sensor yog siv hauv ABS (Anti-lock Braking System) ntawm lub tsheb tsav. Feem ntau ntawm ABS system yog saib xyuas los ntawm ib qho inductive sensor los saib xyuas lub tsheb ceev. Lub abs sensor outputs ib txheej ntawm qhov tseeb Qhov zaus thiab amplitude ntawm lub sinusoidal alternating tam sim no teeb liab muaj feem xyuam rau lub log ceev. Lub teeb liab tso zis tau xa mus rau ABS hluav taws xob tswj chav tsev (ECU) kom paub txog lub sijhawm saib xyuas lub log ceev.
hom tsiaj loj
1. Linear log ceev sensor
Lub linear log ceev sensor yog tsim los ntawm cov hlau nplaum ruaj khov, ncej ncej, induction kauj thiab lub nplhaib iav. Thaum lub nplhaib iav rotates, cov hniav saum toj kawg nkaus thiab backlashes fim lub polar axis alternately. Thaum lub sij hawm kev sib hloov ntawm lub nplhaib iav, cov hlau nplaum sib nqus nyob rau hauv lub induction kauj hloov pauv los ua kom muaj kev cuam tshuam hluav taws xob, thiab cov teeb liab no tau nkag mus rau ABS hluav taws xob tswj chav tsev los ntawm lub cable ntawm qhov kawg ntawm induction coil. Thaum qhov ceev ntawm lub nplhaib iav hloov, qhov zaus ntawm qhov induced electromotive quab yuam kuj hloov.
2. Lub nplhaib log ceev sensor
Lub annular log ceev sensor yog tsim los ntawm cov hlau nplaum ruaj khov, induction kauj thiab lub nplhaib iav. Cov hlau nplaum ruaj khov yog tsim los ntawm ob peb khub ntawm cov hlau nplaum. Thaum lub sij hawm kev sib hloov ntawm lub nplhaib iav, cov hlau nplaum sib nqus hauv qhov induction coil hloov pauv los ua kom muaj kev cuam tshuam electromotive quab yuam. Cov teeb liab no yog nkag mus rau ABS hluav taws xob tswj chav tsev los ntawm cov kab hluav taws xob ntawm qhov kawg ntawm induction coil. Thaum qhov ceev ntawm lub nplhaib iav hloov, qhov zaus ntawm qhov induced electromotive quab yuam kuj hloov.
3. Hall log ceev sensor
Thaum lub iav yog nyob rau ntawm txoj hauj lwm qhia nyob rau hauv (a), cov kab sib nqus quab yuam dhau los ntawm Hall lub caij yog dispersed, thiab lub magnetic teb kuj tsis muaj zog; thaum lub iav yog nyob rau ntawm txoj hauj lwm qhia nyob rau hauv (b), lub magnetic quab yuam kab dhau los ntawm Hall lub ntsiab yog concentrated, thiab lub magnetic teb kuj muaj zog. Thaum lub iav tig, qhov ceev ntawm cov hlau nplaum sib nqus dhau los ntawm Hall lub caij hloov, yog li ua rau muaj kev hloov pauv hauv Hall voltage, thiab Hall lub caij yuav tso tawm ib qho quasi-sine yoj voltage ntawm millivolt (mV) qib. Cov teeb liab no kuj yuav tsum tau hloov mus rau hauv tus qauv mem tes voltage los ntawm lub tshuab hluav taws xob.
Nruab Kho kom raug tshaj tawm
(1) Stamping nplhaib iav
Lub nplhaib iav thiab lub nplhaib puab los yog lub mandrel ntawm lub hub unit txais kev cuam tshuam haum. Thaum lub sij hawm sib dhos txheej txheem ntawm chav tsev hub, lub nplhaib iav thiab lub nplhaib puab los yog lub mandrel tau ua ke ua ke los ntawm hydraulic xovxwm;
(2) Nruab lub sensor
Muaj ob hom kev koom tes ntawm lub sensor thiab lub nplhaib sab nraud ntawm lub hub unit: cuam tshuam haum thiab txiv ntoo xauv. Lub linear log ceev sensor yog feem ntau nyob rau hauv daim ntawv ntawm cov txiv ntseej xauv, thiab lub annular log ceev sensor txais kev cuam tshuam haum;
Qhov kev ncua deb ntawm sab hauv ntawm cov hlau nplaum ruaj khov thiab cov hniav nto ntawm lub nplhaib iav: 0.5 ± 0.15mm (tseem ceeb tshaj plaws los ntawm kev tswj lub sab nraud ntawm lub nplhaib iav, sab hauv txoj kab uas hla ntawm lub sensor thiab concentricity)
(3) Kev ntsuas hluav taws xob Siv tus kheej tsim cov khoom tsim tawm hluav taws xob thiab lub zog ntawm lub zog ntawm qee qhov ceev, thiab sim seb puas muaj luv luv Circuit Court rau linear sensor;
Ceev: 900 rpm
Voltage yuav tsum tau: 5. 3 ~ 7. 9 v xo
Waveform xav tau: ruaj khov sine wave
ntsuas hluav taws xob
Output voltage nrhiav kom tau
Cov khoom kuaj:
1. Tso zis voltage: 650 ~ 850mv (1 20rpm)
2. Tso zis waveform: ruaj khov sine yoj
Qhov thib ob, abs sensor tsis tshua muaj kub durability kuaj
Khaws lub sensor ntawm 40 ° C rau 24 teev los xyuas seb lub abs sensor tseem tuaj yeem ua tau raws li cov khoom siv hluav taws xob thiab kev sib khi ua haujlwm rau kev siv ib txwm.
