Ukuhlinzwa okusheshayo kwenzeka lapho ijubane lenjini lifinyelela ku-3000 RPM.

I-Phenomenon: Amakhasimende abika ukuthi izimoto zivame ukuguquguquka, futhi ngaso sonke isikhathi lapho kunokuhlinzwa, i-throttle (i-accelerator pedal) icishe ibe sesimweni esifanayo, futhi ngasikhathi sinye, amandla anciphayo ayanda futhi amandla ancipha.

Ukuhlaziywa:

1. Inzwa ye-throttle yesikhundla inephutha.

2. Inzwa ye-crankshaft isikhundla inephutha futhi isibonakaliso asizinzile.

3, Ukwehluleka kohlelo lokulahla, okuholele ekusweleni komlilo ngengozi.

4. Ukwehluleka ngengozi kwe-air flowmeter

Ukuxilonga:

1. Shayela ikhodi yephutha, ekhombisa ukuthi isilinganiso sengxube simpofu. Kungathathwa ngokuthi iphutha lihlobene nakanjani ekuvulekeni kwe-throttle. Usebenzisa i-Oscilloscope ukuthola inzwa yesikhundla, kukhombisa ukuthi i-waveforform yayo ibonisa ukuthambekela okuphansi kwehle ngokwanda kokuvulwa kokuvulwa okuthe xaxa, futhi ukuqondisisa kwawo kubushelelezi futhi kungenasisekelo, okukhombisa ukuthi inzwa ye-throttle yesikhundla ijwayelekile.

2. Ngenxa yolunye uhlangothi lwephutha, ukusetshenziswa kukagesi kuyanda futhi amandla ancipha. Imithamo yokugeleza komoya ne-oxygen yahlolwa, kanti izinga lokugeleza komoya lalingu-4.8g / s esivinini esingenzi lutho, kanye ne-kilisa voltage ye-oxygen sensor ekhombisa cishe i-0.8V. Ukuqinisekisa ikhwalithi ye-O2S, injini yaqala ukungasebenzi ngesivinini esikhulu ngemuva kokukhipha ishubhu le-vacuum ekungeneni okuningi, futhi isiginali yama-O2s yehle kusuka ku-0.8v kuya ku-0.2v, okukhombisa ukuthi kwakujwayelekile. Kodwa-ke, ngesikhathi sokusebenza okuyi-idling, ukugeleza komoya kugcinwe ukujuluka nge-amplitude encane ye-4.8g / s. Ngemuva kokukhipha ipulaki lemitha yokugeleza komoya, isivivinyo saphinde saqalwa, futhi iphutha lanyamalala. Ukuxazulula inkinga ngemuva kokubuyisela imitha yokugeleza komoya.

Isifinyezo:

Lapho kusolwa ukuthi inzwa yokuthola iphutha, indlela yokuvula ipulagi ye-sensor (inzwa ye-crankshaft isikhundla ngeke ikhishwe, ngaphandle kwalokho imoto ayikwazi ukuqala) ingasetshenziselwa ukuhlolwa. Lapho ipulaki likhishwa, ukulawulwa kwe-ECU kuzofaka uhlelo lokulinda futhi kwathathelwa indawo amanani agcinwe noma amanye amanani wesiginali. Uma iphutha liyanyamalala ngemuva kokuqabukela, kusho ukuthi iphutha lihlobene nenzwa.