Ukuqhuma okusheshayo kwenzeka lapho isivinini senjini sifinyelela ku-3000 rpm.

I-Phenomenon: Amakhasimende abika ukuthi izimoto zivame ukukhuphuka, futhi njalo lapho kuqhuma, i-throttle (i-accelerator pedal) icishe ibe sesimweni esifanayo, futhi ngesikhathi esifanayo, ukusetshenziswa kukaphethiloli kuyanda futhi amandla ayancipha.

Ukuhlaziya:

1. Inzwa yokuma kwe-throttle inephutha.

2. Inzwa yendawo ye-crankshaft inephutha futhi isignali ayizinzile.

3, ukuhluleka kwesistimu yokuthungela, okuholela ekuntulekeni komlilo ngengozi.

4. Ukuhluleka ngengozi kwe-air flowmeter

Ukuxilongwa:

1. Shayela ikhodi yephutha, ekhombisa ukuthi isilinganiso sengxube sibi. Kungacatshangwa ukuthi iphutha lihlobene nakanjani nokuvuleka kwe-throttle. Isebenzisa i-oscilloscope ukuze ithole inzwa yokuma kwe-throttle, ibonisa ukuthi i-waveform yayo ibonisa ukuthambekela okuphansi okuphansi ngokukhuphuka kokuvuleka kwe-throttle, futhi ukuma kwayo kubushelelezi futhi akunaburr, okubonisa ukuthi inzwa ye-throttle position ivamile.

2. Ngenxa yesinye isici sephutha, ukusetshenziswa kukaphethiloli kuyanda futhi amandla ayancipha. Imitha yokugeleza komoya kanye nenzwa ye-oxygen ihlolwe, futhi izinga lokugeleza kwesisindo somoya laliyi-4.8g / s ngesivinini esingenzi lutho, futhi i-voltage yesignali yenzwa ye-oxygen ibonise cishe i-0.8V. Ukuqinisekisa ikhwalithi ye-O2S, injini iqale ukungenzi lutho ngesivinini esikhulu ngemuva kokukhipha ishubhu levacuum endaweni eningi edonsayo, futhi isignali ye-O2S yehla isuka ku-0.8V yaya ku-0.2V, okubonisa ukuthi ijwayelekile. Kodwa-ke, ngesikhathi sokusebenza kokungenzi lutho, ukugeleza komoya kwakulokhu kushwibeka ku-amplitude encane engu-4.8g/s. Ngemva kokukhipha ipulaki yemitha yokugeleza komoya, ukuhlolwa kwaqalwa futhi, futhi iphutha lanyamalala. Ukuxazulula inkinga ngemva kokufaka imitha yokugeleza komoya.

Isifinyezo:

Uma inzwa kusolwa ukuthi inephutha, indlela yokukhipha ipulaki yenzwa (inzwa yendawo ye-crankshaft ayikwazi ukukhishwa, ngaphandle kwalokho imoto ayikwazi ukuqala) ingasetshenziselwa ukuhlolwa. Uma ipulaki inqanyuliwe, isilawuli se-ECU sizongena ohlelweni olulindile futhi sithathelwe indawo ngamavelu esignali agciniwe noma amanye. Uma iphutha linyamalala ngemuva kokukhipha i-plug, kusho ukuthi iphutha lihlobene nenzwa.