Ungahlola kanjani inzwa yokushisa nge-multimeter
Okuqukethwe
Ingabe imoto yakho ishisa ngokweqile?
Ingabe inaliti yezinga lokushisa kudeshibhodi inamathele ekushiseni noma kubanda?
Ingabe nawe ubhekene nokungenzi lutho kahle kanye nobunzima bokuqalisa injini?
Uma impendulo yakho kule mibuzo inguyebo, khona-ke inzwa yezinga lokushisa ingaba yicala futhi udinga ukwenza izivivinyo kuyo ukuze unqume ukuthi idinga ukushintshwa noma cha.
Ngaphandle kokumosha isikhathi, ake siqale.
Iyini inzwa yezinga lokushisa?
Inzwa yezinga lokushisa noma inzwa yokushisa epholile ingxenye yemoto ekala izinga lokushisa enjinini.
Lapho ikala izinga lokushisa, inzwa epholile ithumela isignali eshisayo noma ebandayo kuyunithi yokulawula injini (ECU), futhi i-ECU isebenzisa lawa masignali ukwenza izenzo ezimbalwa.
I-ECU isebenzisa idatha yenzwa yezinga lokushisa ukuze ilungise kahle umjovo kaphethiloli nesikhathi sokubasa.
Kwezinye izimoto, idatha yenzwa yezinga lokushisa iphinda isetshenziswe ukuvula nokuvala ifeni yokupholisa injini, noma idluliselwe kunzwa ekudeshibhodi yemoto.
Izimpawu zenzwa yezinga lokushisa engalungile
Ngenxa yendima yenzwa yokushisa epholile enjinini nokuthi iyithinta kanjani imisebenzi ye-ECU, izimpawu zenzwa embi kulula ukuzibona.
- Ukushisa ngokweqile kwemoto
Inzwa yezinga lokushisa enephutha ingathumela isignali eshisayo engapheli ku-ECU, okusho ukuthi uma injini idinga ukupholisa, i-ECU ayiphenduli ngendlela efanele futhi ifeni ayilokothi ivule.
Injini iyaqhubeka nokushisa kuze kube yilapho ishisa ngokweqile, okungase kubangele umlilo.
- Isikhathi sokushisa esingesihle
Njengoba kushiwo ngaphambili, i-ECU futhi isebenzisa idatha kusuka kunzwa yokushisa ukuze inqume isikhathi sokuvutha.
Lokhu kusho ukuthi uma inzwa yokushisa ihluleka, ukuqala injini kuzoba nzima ngenxa yesikhathi esingalungile sokuthungela.
- Umjovo kaphethiloli ongalungile
Inzwa yokushisa embi idala umjovo ongemuhle kaphethiloli enjinini, okuholela enkingeni yezinye izimpawu.
Lokhu kusuka kuntuthu omnyama ophuma epayipini lomsila kuya kumakhilomitha amancane, injini engasebenzi kahle kanye nokusebenza kabi kwenjini.
Uma lezi zimo zigcinwa isikhathi eside, injini ingase ilimale.
Amathuluzi Okuhlola Inzwa Yokushisa
Kunezindlela ezimbili zokuhlola inzwa yokushisa epholile, futhi lezi zindlela zinamathuluzi azo akhethekile kanye nemishini.
Ukuze uhlole inzwa yezinga lokushisa uzodinga:
- I-multimeter
- Amanzi ashisayo nabandayo
Indlela yokuhlola inzwa yokushisa nge-multimeter
Setha i-multimeter ku-voltage ye-DC, khipha inzwa yokushisa emotweni, beka i-probe ebomvu ephinikhodi ekude kwesokudla kanye ne-probe emnyama ephinikhodi engakwesokunxele. Gcoba inzwa emanzini ashisayo nabandayo bese uhlola ukufundwa kwe-voltage ku-multimeter.
Lena inqubo eyisisekelo yokuhlola inzwa yezinga lokushisa nge-multimeter, kodwa akugcini lapho.
- Thola inzwa yezinga lokushisa
Inzwa yezinga lokushisa ngokuvamile iyidivayisi encane emnyama etholakala eduze kwendlu ye-thermostat.
Ukuze uthole indawo yokuhlala ye-thermostat, ulandela ipayipi elisuka kurediyetha liye enjinini.
Ekupheleni kwaleli hose kukhona i-thermostat housing, futhi eduze kwayo ngokuvamile kuvame ukuzwa izinga lokushisa.
Lesi silungiselelo singahluka kuye ngemodeli yemoto, kodwa sihlala sivame kakhulu ezimotweni zesimanje.
Kodwa-ke, emalolini, inzwa yokushisa ingatholakala eduze kwesilinda sensimbi ku-cylinder block (i-intake manifold).
Kufanele ususe leyo plenum ukuze uyifinyelele futhi uqashe umakhenikha ochwepheshile - ukubheja okuphephile ukugwema ukulimaza injini.
- Khipha inzwa yezinga lokushisa
Inzwa yezinga lokushisa ixhunywe kumotho ngetheminali yocingo.
Ixhunywe kumahhanisi ezintambo ngokusebenzisa amatheminali ayo ensimbi futhi ufuna nje ukuhlukanisa kokubili.
Vele unqamule inzwa kumahhanisi ezintambo.
PS: Ngaphambi kokuvula ihood yemoto ukuze uthole futhi ususe inzwa yezinga lokushisa, qiniseka ukuthi injini icishiwe futhi ayisebenzi okungenani imizuzu engu-15. Lokhu kuyadingeka ukuze angakushisi.
Uma usuyitholile inzwa yezinga lokushisa futhi uyisuse enjinini, i-multimeter yakho izoqala ukusebenza.
- I-multimeter pinout
Xhuma izintambo ze-multimeter kumatheminali enzwa yezinga lokushisa.
Ezinye izinzwa zingase zibe namatheminali angafika kwangu-5, kodwa qiniseka ukuthi izinzwa zibekwe kuzo zombili iziphetho zesixhumi senzwa.
Ukusetshenziswa kweziqeshana zengwenya kwenza yonke inqubo ibe lula. Uma uxhuma imikhondo ye-multimeter, awufuni ukuthi ithintane.
Umane unamathisele i-probe ebomvu kutheminali kwesokudla kakhulu kanye ne-probe emnyama kutheminali kwesokunxele esikude.
- Inzwa yokucwiliswa emanzini abandayo
Ukucwiliswa kwenzwa emanzini abandayo nashisayo kuyadingeka ukuze uthole izinga lokushisa eliyinkomba lokulinganisa.
Uthola cishe u-180ml wamanzi, ufake ama-ice cubes kuwo, futhi uqiniseke ukuthi acishe abe ngu-33°F (1°C). I-thermostat yedijithali ingase ibe usizo.
- Thatha izilinganiso
Ukuxilonga inzwa yokushisa kudinga ukuthi uhlole ukuthi ikhipha inani elifanele le-voltage.
Ukuze wenze lokhu, usetha ukudayela kwe-multimeter ku-voltage ye-DC futhi urekhode lokho okuphumayo kwe-multimeter.
Uma i-multimeter ingafundi, zama ukulungisa kabusha ama-probe kumatheminali.
Uma namanje ingakuniki ukufunda, inzwa yimbi futhi awudingi ukwenza ezinye izivivinyo.
Ukufundwa kwe-multimeter okulungile kungama-volts angu-5.
Nokho, lokhu kuncike kumodeli yenzwa yezinga lokushisa, ngakho-ke sicela ubheke imanuwali yomnikazi wemoto yakho. Uma uthola ukufundwa, kubhale phansi.
- Inzwa yokucwiliswa emanzini ashisayo
Manje cwilisa inzwa cishe ku-180 ml wamanzi abilayo (212°F/100°C).
- Thatha izilinganiso
Njengoba i-multimeter isekulungiselelo lwe-voltage ye-DC, hlola ukufundwa kwe-voltage bese uyirekhoda.
Kulesi sivivinyo samanzi abilayo, igeji elihle lokushisa linikeza ukufundwa kwe-multimeter cishe okungama-volts angama-25.
Yiqiniso, lokhu kuncike kumodeli futhi ufuna ukubhekisela kumanuwali yemoto noma inzwa yezinga lokushisa.
- Linganisa imiphumela
Ngemva kokwenza lezi zivivinyo zamanzi abandayo nashisayo, uzoqhathanisa izilinganiso zakho nezimfuneko zemodeli ethile yemoto yakho.
Uma izilinganiso ezibandayo nezishisayo zingafani, inzwa inesici futhi kufanele ishintshwe.
Ngakolunye uhlangothi, uma zifana, inzwa isebenza kahle futhi izinkinga zakho zingase zihlobane nezinye izingxenye.
Nansi ividiyo eyenza ibe lula inqubo yokuhlola amanzi abandayo nashisayo kusizwa izinga lokushisa.
Ihlola izintambo zokuzwa izinga lokushisa
Ungahlola izintambo zokuzwa ngokusebenzisa izintambo zokuxhuma ukuze ugxilise intambo endaweni yensimbi eseduze.
Qala injini, galisa izinzwa ezinezintambo ngentambo ye-jumper bese uhlola inzwa yezinga lokushisa kudeshibhodi.
Uma izintambo zihlelekile, igeji ifunda cishe phakathi kokushisa nokubanda.
Uma ungakwazi ukulandela indlela enezintambo, sinomhlahlandlela walokho.
isiphetho
Inzwa yokushisa iyingxenye encane edlala indima enkulu kakhulu empilweni nasekusebenzeni kwenjini yakho.
Uma ubona izimpawu, landela imiyalelo yethu futhi usebenzise i-multimeter ukuze ulinganise amandla kagesi akhiqizwa kuwo wonke amatheminali ayo.
Ukuqasha umakhenikha ochwepheshe kungaba usizo uma izinyathelo zibonakala zinzima kancane.
Imibuzo evame ukubuzwa
Wazi kanjani uma i-thermometer yakho iphukile?
Ezinye zezimpawu zenzwa yezinga lokushisa elibi zihlanganisa ukushisa kwenjini, ukukhanya kwenjini okuqhamukayo, intuthu emnyama evela ku-exhausi, imayela eliphansi, injini engasebenzi kahle, nobunzima bokuqalisa imoto.
Kungani inzwa yami yezinga lokushisa inganyakazi?
Igeji yezinga lokushisa ingase inganyakazi ngenxa yezinkinga zenzwa yezinga lokushisa. Igeji ye-pressure gauge ingahlala ilenga lapho kushisa noma kubanda, kuye ngokuthi igeji yonakele nini.
Indlela yokulinganisa ukumelana kwenzwa yokushisa?
Setha i-multimeter ibe ama-ohms, beka imikhondo yokuhlola kumatheminali enzwa, okungcono usebenzise iziqeshana zengwenya, futhi uhlole ukufundwa kokumelana. Ukufundwa okuhambisanayo kuncike kumodeli yenzwa.
Ingabe inzwa yezinga lokushisa ine-fuse?
Inzwa yezinga lokushisa ayinayo i-fuse yayo, kodwa isebenzisa intambo ecijile kuqoqo lezinsimbi. Uma le fuse ishaywa, inzwa yezinga lokushisa ayisebenzi futhi i-fuse kufanele ishintshwe.
