Motokari yega yega ine yakapfava asi yakakosha sensor inobatsira kutarisa mashandiro einjini - inotonhorera tembiricha sensor.Verenga nezve iyo tembiricha sensor, kuti ine dhizaini ipi, pamisimboti iyo basa rayo rakavakirwa, uye nzvimbo yainogara mumotokari.
Chii chinonzi tembiricha sensor
Inotonhorera tembiricha sensor (DTOZh) inzwa yemagetsi yakagadzirirwa kuyera tembiricha yeinotonhodza (inotonhorera) yeinotonhodza system yeinjini inobatidza mukati.Iyo data yakawanikwa ne sensor inoshandiswa kugadzirisa akati wandei matambudziko:
• Kutarisa kutaridzika kwekushisa kwechikwata chemagetsi - data kubva kune sensor inoratidzwa pane inoenderana mudziyo (thermometer) pane dashboard mumotokari;
• Kugadziriswa kwekushanda kwemhando dzakasiyana-siyana dzeinjini (simba, kupisa, kutonhora, kupera kwegasi recirculation uye vamwe) maererano nehutongi hwayo hwemazuva ano hwekushisa - ruzivo kubva kuDTOZH runopiwa kune electronic control unit (ECU), iyo inogadzirisa zvakakodzera.
Inotonhorera tembiricha sensors inoshandiswa mumotokari dzese dzemazuvano, dzine dhizaini yakafanana uye musimboti wekushanda.
Mhando uye dhizaini yekushisa sensors
Mumotokari dzemazuva ano (pamwe chete nemidziyo yemagetsi yakasiyana-siyana), ma sensor tembiricha anoshandiswa, chinhu chinonzwisa tsitsi mune thermistor (kana thermistor).A thermistor mudziyo wesemiconductor uyo kusamira kwemagetsi kunoenderana nekupisa kwayo.Kune ma thermistors ane yakashata uye yakanaka tembiricha coefficient yekupikisa (TCS), yemidziyo ine TCS isina kunaka, kushomeka kunoderera nekuwedzera tembiricha, kune zvishandiso zvine TCS yakanaka, pane zvinopesana, inowedzera.Nhasi, mathermistors ane TCS anonyanya kushandiswa, sezvo ari nyore uye akachipa.
Zvimiro, mota dzese DTOZh dzakafanana.Nheyo yekugadzira isimbi yesimbi (cylinder) yakagadzirwa nendarira, bhuronzi kana imwe simbi isingadziviriri.Muviri unogadzirwa nenzira yekuti chikamu chayo chiri kusangana neinotonhorera inoyerera - heino thermistor, iyo inogona kuwedzera kudzvanywa nechitubu (kuti iwedzere kuvimbika kubata nenyaya).Muchikamu chepamusoro chemuviri pane kushamwaridzana (kana kushamwaridzana) kwekubatanidza sensor kune inopindirana yedunhu remagetsi emotokari.Mhosva yacho zvakare yakarukwa uye turnkey hexagon inogadzirirwa kukwirisa sensor mujini inotonhorera system.
Temperature sensors inosiyana nenzira yaakabatanidzwa neECU:
• Nemagetsi emagetsi emagetsi - sensor ine plastiki connector (kana block) nevanosangana;
• Nekugunun'una kwe screw - imwe yekubatanidza ne clamping screw inogadzirwa pane sensor;
• Nepini kubata - imwe pini kana spatula yekubata inopiwa pane sensor.
Sensors yemhando yechipiri neyechitatu inongova nekubatana kumwe chete, iyo yechipiri kusangana ndeye sensor body, yakabatana ne "pasi" yemotokari yemagetsi system kuburikidza neinjini.Masensa akadaro anonyanya kushandiswa pamotokari dzekutengesa uye marori, pane yakakosha, yekurima uye mimwe michina.
Iyo inotonhorera tembiricha sensor inoiswa panzvimbo inopisa kwazvo yeinjini yekutonhodza system - mupombi yekupedza yemusoro wecylinder.Pamotokari dzemazuva ano, DTOZhS mbiri kana nhatu dzinowanzoiswa kamwechete, imwe neimwe inoita basa rayo:
• The thermometer sensor (inotonhora tembiricha chiratidzo) ndiyo iri nyore, ine yakaderera kururamisa, sezvo inongobatsira chete kuona kutaridzika kwekushisa kwesimba remagetsi;
• Iyo ECU sensor pakubuda kwemusoro weyuniti ndiyo inonyanya kunetseka uye yakarurama sensor (ine kukanganisa kwe 1-2.5 ° C), iyo inokubvumira kuti utarise kuchinja kwekushisa kwemadhigirii akawanda;
• Radiator outlet sensor - an auxiliary sensor of low accuracy, iyo inovimbisa panguva yakakodzera yekushandura nekudzima kwemagetsi emagetsi ekutonhorera fan.
Masensa akati wandei anopa rumwe ruzivo nezve yazvino tembiricha yesimba remagetsi uye inobvumidza iwe kuti utarise nekuvimbika mashandiro ayo.
Nheyo yekushanda uye nzvimbo yekushisa sensor mumotokari
Kazhinji, musimboti wekushanda kweiyo tembiricha sensor iri nyore.Mhepo inogara iripo (kazhinji 5 kana 9 V) inoshandiswa kune sensor, uye mhepo inodonha pa thermistor maererano nemutemo weOhm (nekuda kwekupikisa kwayo).Kuchinja kwekushisa kunosanganisira kuchinja mukupikisa kwe thermistor (kana tembiricha ichikwira, kushorwa kunoderera, kana tembiricha yadzikira, inowedzera), uye nekudaro kudonha kwevoltage munharaunda ye sensor.Iko kuyerwa kukosha kwekudonha kwevoltage (kana kuti, iyo chaiyo voltage mu sensor circuit) inoshandiswa ne thermometer kana ECU kuona tembiricha iripo yeinjini.
Nekutarisa kwekutarisa kwekushisa kwesimba remagetsi, chinhu chakakosha chemagetsi chinosungirirwa kune sensor circuit - ratiometric thermometer.Chishandiso chinoshandisa maviri kana matatu mahwindi emagetsi, pakati pawo pane chinotakurika chine museve.Imwe kana maviri mahwindi anoburitsa inogara ichiita magineti, uye imwe mhepo inosanganisirwa mune tembiricha sensor wedunhu, saka iyo magineti yayo inoshanduka zvichienderana neinotonhorera tembiricha.Nekuda kwekudyidzana kweanogara uye anochinjanisa magineti mumhepo, inoita kuti armature itenderere yakatenderedza axis yayo, izvo zvinosanganisira shanduko yenzvimbo yeiyo thermometer tsono pane dial yayo.
Kudzora kushanda kwemota mumhando dzakasiyana-siyana uye kutonga masisitimu ayo, iyo sensor kuverenga inopihwa kune yemagetsi control unit kuburikidza neakakodzera controller.Iyo tembiricha inoyerwa nehukuru hwekudonha kwevoltage munharaunda ye sensor, nekuda kweichi mundangariro dzeECU kune matafura ekunyorerana pakati pevoltage mu sensor circuit uye tembiricha yejinjini.Kubva pane idzi data, akasiyana algorithms ekushanda kwemainjini makuru masisitimu anotangwa muECU.
Zvichienderana nekuverenga kweDTOZH, mashandiro eiyo ignition system inogadziriswa (kuchinja nguva yekubatidza), magetsi (kuchinja kuumbwa kwemafuta-mhepo musanganiswa, kupera kwayo kana kupfumisa, throttle assembly control), kupera kwegasi recirculation uye. vamwe.Zvakare, iyo ECU, maererano nejini tembiricha, inoisa crankshaft kumhanya uye mamwe maitiro.
Iyo tembiricha sensor pane inotonhorera radiator inoshanda nenzira yakafanana, inoshandiswa kudzora fan yemagetsi.Pane dzimwe mota, sensor iyi inogona kupetwa neiyo huru yekunyatso kudzora kwakasiyana injini masisitimu.
Iyo tembiricha sensor inoita basa rakakosha mumotokari chero ine injini yekupisa mukati, kana paine kuparara, inofanirwa kutsiviwa nekukurumidza sezvinobvira - chete mune iyi kesi kushanda kwakajairwa kwesimba remagetsi mune chero maitiro anozovimbiswa.
Nguva yekutumira: Aug-24-2023