Ko kugogodza sensor inoshanda sei muinjini, dhizaini yayo

Kushanda kwakajairwa kweinjini yemotokari hakugoneki kana maitiro ekupisa mafuta mumasilinda ayo akanganiswa. Kuti mafuta apise zvakanaka, anofanira kunge ari emhando yakafanira, uye nguva yekubatidza injini inofanira kuiswa zvakanaka. Chete pasi pemamiriro ezvinhu aya, injini haina kutambisa mafuta uye inogona kushanda yakazara. Kana chimwe chimiro chisipo, mukana we detonation hauna kubviswa. Iyo mota inogogodza sensor inobatsira kudzivirira chiitiko ichi.

Detonation combustion, chii ichocho

Detonation yemusanganiswa wemhepo-mafuta mujini inonzi isingadzoreki yekupisa nzira, mhedzisiro yacho "mini-kuputika". Kana kupisa kwemafuta kuchiitika mune yakajairika mode, murazvo unofamba nekumhanya kweanenge 30 m/s. Kana detonation ikaitika, kumhanya kwemurazvo kunowedzera zvakanyanya uye kunogona kusvika 2000 m / s, izvo zvinotungamira mukuwedzera kwemutoro uye nekukasira kupfeka kwepiston nemasilinda. Nekuda kweizvozvo, kana mota isina kugadzirwa nekugogodza sensor, ingangoda kugadziriswa kukuru mushure mekufamba makiromita 5-6 zviuru.

Chii chinokonzera detonation

Zvikonzero zvinonyanya kukonzera kupisa kwemafuta ndezvi:

• hurombo husina kunaka uye nhamba yeoctane yepeturu: iyo yakaderera nhamba yeoctane, yakaipisisa kuramba detonation;
• isina kukwana injini dhizaini: detonation inogona kufambiswa nezvimiro zvekamuri yekupisa, mauto ekumanikidza mafuta, kurongeka kwakashata kwe spark plugs, nezvimwe zvakawanda;
• mamiriro asina kunaka ayo injini inoshanda pasi payo: mutoro, kupfeka kwakawanda, kuvapo kwesoti.

Ko kugogodza sensor inoshanda sei?

Iyo yekugogodza sensor inoshanda pamusimboti wekugadzirisa nguva yekudzima kune kukosha uko kunodzora kupisa kwemhepo-mafuta musanganiswa kunodzoserwa. Iyo sensor inoshandiswa pane jekiseni-mhando yemotokari injini.

Mukati mekugadzira mafuta, injini inotanga kudedera zvine simba. Iyo sensor inosarudza kutaridzika kwe detonation chaizvo nekutora vibrations, iyo inozoshandurwa kuita chiratidzo chemagetsi.

Izvo zvikamu zvikuru zve sensor ndezvi:

• piezoceramic sensing element;
• resistor;
• insulator;
• uremu hwesimbi.

Kubva pane piezoceramic element, waya dzinoenda kune vanobatana uye huremu hwesimbi. A resistor iyo inogadzirisa simba remagetsi emagetsi inowanikwa pane zvakabuda. Chinhu chinonyatsoona kuzununguka ihuremu - inomanikidza chinhu chepiezoelectric.

Iyo yakajairika nzvimbo yekugogodza sensor iri pane mota dzimba, pakati pechipiri neyechitatu masilinda. Iyo sensor haipindure kune ese mavibrations, asi chete kune asina kujairika, ndiko kuti, mune frequency renji kubva pa30 kusvika 75 Hz.

Sarudzo yenzvimbo yakadai ye sensor imhaka yekuti inonyanya kufarirwa kugadzirisa mashandiro ecylinder yega yega uye iri padhuze neanowanzo detonation epicenters.

Kana vibration ichionekwa ne sensor, zvinotevera zvinoitika:

• iyo piezoelectric element inoshandura simba rekuzunguza kuita magetsi, iro rinowedzera nekuwedzera kweiyo vibration amplitude;
• pane yakakosha voltage level, iyo sensor inotumira murairo kune komputa yemotokari kuti ichinje nguva yekudzima;
• iyo injini manejimendi system inogadzirisa kupihwa kwemafuta uye inoderedza nguva yenguva isati yadzima;
• semugumisiro wekushanda kwakaitwa, kushanda kwejini kunosvika kune imwe nzvimbo, kutonga pamusoro pekupisa kwemhepo-mafuta musanganiswa kunodzorerwa.

Chii chinonzi knock sensors

Mafuta anogogodza sensors ane resonant uye Broadband.

Broadband sensors ndiyo yakanyanya kupararira, ndiyo dhizaini yavo uye musimboti wekushanda wakatsanangurwa mune ino chinyorwa. Nechekunze, dzinoita sedzakatenderedzwa, nechepakati dzine buri rekusungirira injini.

Resonance sensors ine yekunze yakafanana nemafuta ekumanikidza ma sensors, iwo ane shinda yakakodzera gomo. Ivo vanogadzirisa kwete vibration, asi kusimba kwe microexplosions mukati mekamuri yekupisa. Mushure mekuona microexplosions, mutongi anogamuchira chiratidzo kubva kune sensor. Iyo microexplosion frequency index yemota yega yega yakasiyana uye inoenderana zvakanyanya nehukuru hwepiston.

Basic sensor malfunctions

Sezvo mutemo, kana sensor isiri kushanda, chiratidzo che "Check Engine" chinovhenekera pane dashboard yemotokari. Chiratidzo ichi chinogona kuvheneka nguva nenguva kana kuvhenekera nekudzika uye kubuda zvichienderana nehuwandu hwekutakura. Iyo yakanganisa kugogodza sensor haisi chipingamupinyi pakushanda kweinjini, asi haizokwanisi kunyevera mutyairi nezve chiitiko che detonation uye kutanga michina yekubvisa.

Pane akati wandei anogoneka zviratidzo zvekuti iyo yekugogodza sensor yakaipa:

• injini inopisa zvikuru nokukurumidza, kunyange kana kunze kwekushisa kwakaderera;
• kuderera kunoonekwa musimba uye simba remotokari mukushayikwa kwezviratidzo zvekushaya simba;
• kuwedzera kwekushandiswa kwemafuta pasina zvikonzero zvakajeka;
• kuitika kwe soot hombe pa spark plugs.

Ita-iwe-iwe pachako kugogodza sensor cheki

Kana imwe yezvingangove zviratidzo zvekusashanda kweiyo kugogodza sensor yawanikwa, kuita kwayo kunofanirwa kuongororwa. Zvinokurudzirwa kuti iyo yekugogodza sensor itariswe panzvimbo yebasa, asi kana iwe usina nguva kana kukurudzira kuti udaro, unogona kutarisa kugogodza sensor iwe pachako.

Kutanga iwe unofanirwa kugadzirira iyo multimeter nekuisa bvunzo kuramba pairi - nezve 2 kOhm. Zvadaro, unofanira kubatanidza chigadziro kune sensor uye kuyera kushandiswa kwekushanda. Pasina kudzima chishandiso, tora zvishoma chinhu chakaoma pamusoro peiyo sensor imba. Kana panguva imwechete iwe unogona kuona kuwedzera kwekupikisa kukosha, ipapo sensor inowanzoitika.

Iyo mafuta inogogodza sensor ine diki asi yakakosha basa mukudzora kushanda kweinjini yemotokari. Kutsvedzerera kwekukwira, simba uye masimba emotokari zvinoenderana nekushanda kwe sensor. Sensor yakashata iri nyore kuongorora uye, kana zvichidikanwa, shandura iwe pachako.