Ib feem ntawm cov ura siab sensor yog siv los txheeb xyuas ura siab, thiab nram qab lub luag haujlwm ntawm kev sib xyaw ntawm urea thiab huab cua hauv lub chaming. Thaum cov khoom tiv thaiv tsis: Urea noj yog txawv txav, thiab lub tsheb teeb pom kev txhaum teeb. Thaum lub txim txhaum cai yog qhov txhaum tam sim no, lub cav kev ua tau zoo nyob hauv kev nrawm thiab lub zog.
Kev kuaj xyuas thiab kho cov tsis tau:
Siv ib tug ntau ntau ua ntsuas qhov hluav taws xob voltage ntawm ura siab sensor, thiab ntsuas qhov tseem ceeb hloov, thiab ntsuas 5v (hluav taws xob) thiab 0v (av). Txhawm rau ntsuas cov hluav taws xob kaw-Circuital, ua ntej tig rau ntawm tus yuam sij, ntsaws rau hauv qab ntsuas qhov hluav taws xob, ntsuas 5V (0.8-1v (teeb liab) thiab 0V (av).
Cov txhaum cai lij choj:
| FC3571 | Yav Tom Ntej Urea Siab Sensor voltage yog siab dua li qub
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| FC3572 | Yav tom ntej ura siab sensor voltage yog qis dua li ib txwm
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| FC3573 | Tom qab anteatoric ura siab sensor tam sim no yog qis dua li ib txwm los yog qhib Circuit Court
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| FC4238 | TOM QAB PEM TSIM NYOG pab tau kev ntxhov siab - cov ntaub ntawv hauv qab no ib txwm
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| FC4239 | TOM QAB PEM TSIM NYOG pab tau ntau heev - Cov ntaub ntawv saum ib txwm
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Cov tswv yim tshuaj xyuas cov tswv yim:
1. Siv qhov ntau ntawm kev ntsuas cov qhib-Circuition ntawm lub Plug raws li 5V (lub zog) yog tias cov kab ib txwm muaj thiab lub computer tsis muaj teeb meem.
2. Lub FC3571 Feat yog qhia, uas feem ntau yog ib feem luv ntawm cov kab hluav taws xob rau cov kab hluav taws xob rau hauv av xaim lossis qhov tsis sib haum ntawm cov khoom sib xyaw.
3. Lub FC3572 142 feem ntau yog vim qhib Circuit Court ntawm lub zog hluav taws xob kab lossis teeb liab kab mus rau hauv av lossis kev puas tsuaj sab hauv.
4. Daim ntawv qhia FC3573 feem ntau vim tias cov plug xoob, qhov kev sib txuas ntawm virtual lossis kev puas tsuaj sab hauv
Kev txheeb xyuas cov tswv yim:
1. Tsom rau kev kuaj seb puas tau txais cov twj tso kua mis muaj kev sib txuas lus virtual, dej ingress thiab corrosion.
2. Thaum ura siab sensor qhia cov nyiaj siab lossis qis qis, ntsuam xyuas seb puas yog sensor hnov cov ntaub ntawv hlau yog defed lossis puas thiab seb cov kev sib tsoo puas yog.
3. Txhawm rau tiv thaiv cov tswb cuav tshwm sim los ntawm kev hloov kho urrecal ura siab sensor, cov khoom siv tuaj yeem hloov rau kev kuaj.
4. Tus lej FC4239 Txhaum Cai yog qhia. Feem ntau, ECM saib xyuas tias qhov siab tiag tiag siab dhau thiab ceeb toom kev ua txhaum. Tus nqi sib xyaw ua ke yuav tsum yog ntawm 330 ~ 430kpa thaum Upsea Dosing twj tau npaj txhij rau txhaj (ua ntej txhaj tshuaj tau ua tiav) thiab kev txhaj tshuaj theem. Yog tias ECM pom tau tias qhov kev ntsuas siab tiag tiag yog siab dua 500kpa thiab txuas ntxiv rau ntau dua 8s, nws yuav qhia txog kev txhaum; Lossis nyob rau theem ua ntej txhaj tshuaj, nws yuav qhia qhov txhaum yog tias nws siab dua 150kpa thiab txuas ntxiv rau 0.5s. Vim li cas:
Thzze nozzle yog thaiv, tus yeeb nkab txhaj yog khoov thiab thaiv;
Urlethe urea muaju hauv ura pump yog thaiv;
③Thaum cov cua tshuab cua siab dhau lawm;
④ Tshawb xyuas seb puas yog kev hnov cov ntawv hlau ntawm cov chav sib xyaw ua ke sensor yog puas;
5. Lub FC4238 Txhaum Cai yog qhia. Feem ntau, ECM saib xyuas tias qhov kev ua siab tiag tiag yog tsawg dhau thiab ceeb toom kev ua txhaum. Tus nqi sib xyaw ua ke yuav tsum yog ntawm 330 ~ 430kpa thaum Upsea Dosing twj tau npaj txhij rau txhaj (ua ntej txhaj tshuaj tau ua tiav) thiab kev txhaj tshuaj theem. Vim li cas:
①insinsufficed cua siab;
Urlethe urea muaju hauv ura pump yog thaiv;
Tshawb xyuas seb puas yog lub sensor hnov cov ntawv hlau yog puas thiab seb O-Ring raug puas;
④THTHTHTHTHTHE IB TXOJ KEV-TXOJ KEV ROJ LUB CAIJ NTAWM COV ROJ PATH yog puas lossis lub taub lim screen thaiv;
⑤ Kev txhaj tshuaj valve;
6. Yog hais tias cov kev ntsuas saum toj no yog ib txwm muaj, xav pom kev txiav txim siab cov ntaub ntawv lossis hloov lub khoos phis tawj.
Lub Sijhawm Post: Oct-31-2022