Te mahi a te mita rere hau waka
He pūoko matua te mita rere hau i roto i te pūnaha whakahaere hiko o te miihini motuka. Ko tana mahi matua he ine i te rere o te hau e tomo ana ki te miihini i te wā tūturu, ka huri i ēnei raraunga hei tohu hiko hei tuku atu ki te waeine whakahaere miihini (ECU), koinei te pūtake matua mō te ECU ki te tatau i te rahinga werohanga wahie me te arotau i te ōwehenga hau-wahie.
Te mahi matua o te mita rere hau
Whakahaere tika i te nui o te weronga wahie, me te pupuri i te ōwehenga hau-wahie tino pai
Me pupuri tonu te ōwehenga hau-wahie ariā mō te tahunga o te mīhini (tata ki te 14.7:1). Ko ngā raraunga rōrahi hau whakauru e whakaratohia ana e te mita rere hau te pūtake "tino tika me te tino tika" mō te ECU ki te tatau i te rōrahi werohanga wahie e hiahiatia ana. Ka whakahaere tika te ECU i te whānui o te pā o te werohanga wahie i runga i ēnei raraunga kia tino whakaranua te wahie me te hau ki te ōwehenga tino pai, kia pai ai te tahunga. Mena he hē ngā raraunga, ka hua ake he nui rawa te ranunga wahie (he nui ake te kai wahie me te nui ake o ngā putunga waro) he kore rānei e ranea te ranunga wahie (he iti te mana me te ngāwari ki te whakaroa).
Whakapai ake i te mana o te miihini me te whakapaunga wahie
I te wā whakaterenga me ētahi atu āhuatanga taumaha, ka taea e te mita rere hau te urupare tere ki te pikinga ohorere o te rahinga hau e tomo ana, ka taea ai e te ECU te whakanui tonu i te rahinga werohanga wahie kia nui ai te mana. I te wā e tere ana, e noho mangere ana rānei, ka whakaitihia te rahinga werohanga wahie kia iti ake ai te whakapaunga wahie. Ko tōna tere urupare ka pā tika ki te wheako taraiwa. Hei tauira, ko te wā urupare o te mita rere momo kiriata wera kei roto i te 0.1 hēkona, e whakarite ana i te hononga hiko maeneene.
Me whakarite kia tutuki ngā whakaritenga tukunga
Ko te pai o te mura e whakatau tika ana i te taumata o te tukunga o te hau. Mā ngā raraunga tika mai i te mita rere hau ka tino tahuna te wahie, ka whakaitihia te tukunga o ngā matū kino pēnei i te hauota waro (CO) me ngā hauwaiwai (HC). Mēnā ka hē te pūoko, ā, ka nui rawa te ranunga wahie, ka puta te paoa pango mai i te hau, ā, ka kore te waka e eke ki te tirotiro ā-tau.
Whakarerekētia ki ngā āhuatanga uaua, kia pumau ai te mahi a te miihini
Ahakoa he paku rerekētanga o te hau whakauru i te wā e noho puku ana, he nui rānei te hau whakauru i te wā e tere haere ana, ka taea e te mita rere hau te aroturuki me te tuku urupare ki te ECU i te wā tonu, kia mau tonu ai te mahi a te miihini i raro i ngā āhuatanga rerekē, me te karo hoki i te tūponotanga, te motumotu rānei o te hiko.
Ngā āhuatanga hapa noa
Ina kapi te mita rere hau i ngā putunga waro, ina pakaru, ina he hapa waea rānei, ka puta ake ngā tohu e whai ake nei:
Te kore pumau, te rūrū rānei o te miihini: Ka kitea te rūrū o te miihini i te wā e noho puku ana, nā te mea ka whiwhi te ECU i ngā tohu hau whakauru hē, ka kore e tika te whakahaere oro weronga wahie.
Te whakaterenga ngoikore, te "whakakorikori" rānei: I muri i te takahi i te whakaterenga, ka puhoi te urupare mana, ā, he uaua ki te hopu.
Te nui rawa o te whakapaunga wahie: Ahakoa kāore i rerekē ngā tikanga taraiwa me ngā āhuatanga o te rori, ka nui ake te pikinga o te whakapaunga wahie (tērā pea mā te 10%-20%).
Ka puta te paoa pango i te hauā, ā, ka hipa ake i ngā paerewa tukunga: Ko te kore e ranea te tahunga te take.
Ka kā te rama hapa o te miihini: Ka rongoa e te ECU ngā waehere hapa pēnei i te "P0100-P0104" e pā ana ki te mita rere hau.
Ngā whakaaro tiaki
Tirotiro auau: E taunakitia ana kia tirohia te mita rere hau i ia 2-30,000 kiromita, inā koa mō ngā waka e taraiwahia ana i runga i ngā rori puehu.
Te horoinga ngaio: Mena he puranga waro kei roto, whakamahia he mīhini horoi mita rere hau motuhake hei horoi. Kaua e whakamahia he mīhini horoi carburetor, nā te mea ka waikura pea te kiriata wera tairongo, ngā wāhanga waea wera rānei.
Whakakapia ngā wāhanga: Mena kua pakaru te pūoko, me whakakapi ki ngā wāhanga taketake, ki ngā wāhanga waitohu rānei. He maha ngā wā, kāore e taea e ngā wāhanga waitohu-iti te kī taurangi i te tika me te roa o te ora.
Ko te mita rere hau (pūoko MAF) he wāhanga matua o te pūnaha whakahaere hiko o te mīhini, e ine ana i te rere o te hau e tomo ana ki te mīhini, ā, koia te pūtake matua o te ECU (Electronic Control Unit) mō te tatau i te nui o te weronga wahie. Kia kore e mahi, ka puta he taurite kore i roto i te ōwehenga ranunga wahie, ka hua ake he maha ngā hapa o te mahi a te mīhini.
Ko ngā tohu e whai ake nei he mea noa ina hē te mita rere hau:
Te kore pumau o te noho puku: Ka wiri te miihini i te wā e noho puku ana, nā te mea ka whiwhi te ECU i ngā tohu hau whakauru hē, ka puta he whakahaere hē o te nui o te weronga wahie. Te ngoikore o te whakatere me te puhoi o te mana: I muri i te takahi i te whakatere, ka puhoi te urupare a te waka, ka puhoi te whakatere, inā koa i te awhe 1500-2000 rpm, ka "ngaro te mana". Nā te mea ka hē te whakatau a te ECU i te nui o te hau whakauru, ka whakaiti i te weronga wahie, ka hua ake he ranunga tino kino.
Te pikinga rerekē o te whakapaunga wahie: Mena he nui rawa te tohu a te pūoko, ka hē te whakaaro o te ECU kei roto te mīhini i te āhua kawenga teitei, ka piki ake te weronga wahie, ka puta he ranunga tino kukū, ā, kāore e taea te tahu katoa i te wahie, ka hua ake he pikinga nui o te whakapaunga wahie. Ko ētahi tauira he rama whakatūpato "MĪHINI RATONGA" kei runga i te papaaho.
Ka puta te paowa pango i roto i te paipa putanga hau: Ina tino kukū te ranunga, ka tukuna he nui o ngā matūriki waro kāore i tahuna me te hau putanga hau, ka puta he paowa pango mārama. Ehara i te mea ka poke noa i te taiao engari he tohu hoki tēnei he ngoikore te pai o te tahunga.
Te tūnga o te miihini me te wiri o te miihini: Ina tere te taraiwa (neke atu i te 120 km/h), kāore e pumau te putanga tohu a te pūoko, ka whakaitihia pea e te ECU te werohanga wahie, ka mutu te mana o te miihini, te wiri, te tūnga rānei, ka puta he tūponotanga nui ki te haumaru.
Pānga whakamuri i roto i te paipa whakauru： I te wā e whakatereterehia ana, e whakaroahia ana rānei, ka puta pea he oro rerekē o te "bang bang" i te miihini, e puta mai ana i te mura rerekē i roto i te paipa whakauru nā te kore e ranea, te nui rawa rānei o te ranunga ka hua ake he mura rerekē.
Mō ētahi tauira, ina hē te mita rere hau, ka tiaho te rama hapa o te miihini (Tirohia te Mīhini). Heoi anō, tera anō ētahi wā he iti noa te peka o te tohu, ā, kāore te ECU e tuhi i te waehere hapa, engari ko te hekenga o te mahi anake e whakaatu ana. Ka taea te whakaū i te tātaritanga ngaio mā te kite i te āhua o te ngaru o te pūoko me te oscilloscope (me noho te ngaohiko thermocouple noa i roto i te 2.5-3.2V) mā te pānui rānei i te waehere hapa.
Mena ka puta he maha ngā tohu, me haere tonu ki tētahi toa whakatika hau ngaio hei tirotiro. Mēnā e tika ana, whakakapia te mita rere hau taketake, ā, kia aro ki te horoi i te pūnaha whakauru i ia wā kia kore ai e pupū ake te puehu, ka pā kino ki te tika o te pūoko.
Ki te hiahia koe ki te mōhio atu, pānuihia tonutia ngā tuhinga kē atu i runga i tēnei pae!
Tena waea mai ki a mātou mēnā e hiahia ana koe ki ēnei hua.
Zhuo Meng Shanghai Auto Co., Ltd. e whakapau kaha ana ki te hoko i a MG&MAXUSnau mai haere mai ngā wāhanga waka ki te hoko.
