Kodi choyezera mpweya wozizira m'galimoto ndi chiyani?
Chojambulira mpweya wozizira m'magalimoto ndiye gawo lalikulu la makina oziziritsira. Ntchito yake yayikulu ndikuwunika kuthamanga kwa mpweya wozizira m'mapaipi oziziritsira mpweya nthawi yeniyeni, kuonetsetsa kuti compressor ikugwira ntchito bwino, komanso kugwira ntchito ndi zinthu zina kuti ziwongolere bwino kuyambika ndi kuyimitsa kwa fan yoziziritsira ndi compressor. Nthawi zambiri imayikidwa mu chitoliro cha mpweya wozizira kwambiri m'chipinda cha injini ndipo imatumiza deta ya kuthamanga kwa mpweya ku ECU ya injini kapena chipangizo chapadera chowongolera mpweya wozizira. ECU ikalandira chizindikiro cha kuthamanga kwabwinobwino, imayambitsa compressor ndi fan yoziziritsira; Ngati chizindikiro cha kuthamanga kwachilendo chapezeka, njira zofulumira zimatengedwa kuti ziletse zida zoziziritsira mpweya monga ma compressor kuti zisayambe, potero kuteteza makina onse oziziritsira.
Sensa yopumira mpweya nthawi zambiri imagwiritsa ntchito kapangidwe ka makina a waya atatu, njira yake yowongolera imaphatikizapo chizindikiro cha analog, Lin bus ndi duty cycle control mitundu itatu. Kuti muyese sensa yopumira mpweya, gwiritsani ntchito multimeter kuti muyese chingwe chamagetsi, chingwe chapansi, ndi chingwe cha chizindikiro cha sensa. Nthawi zambiri, chingwe chamagetsi ndi 5V kapena 12V, chingwe chapansi ndi 0V, ndipo chingwe cha chizindikiro chimasinthasintha pakati pa 0.5V mpaka 4.5V kapena 1V mpaka 5V. Ngati mtengo woyesedwa ndi wosiyana kwambiri ndi mtengo wamba, zitha kutanthauza kuti sensa yawonongeka kapena pali kulumikizana kwapadera mu harness.
Sensa yoziziritsa mpweya imagwira ntchito yofunika kwambiri mu makina oziziritsira mpweya m'galimoto. Ngati sensa yalephera, sizingayambitse kuzizira m'galimoto, compressor singathe kugwira ntchito, kapena kuyambitsa ndi kuyimitsa mavuto pafupipafupi. Chifukwa chake, kuyang'anira nthawi zonse ndi kukonza sensa yoziziritsa mpweya ndi njira yofunika kwambiri kuti zitsimikizire kuti makina oziziritsira mpweya m'galimoto akugwira ntchito bwino.
Mfundo yogwiritsira ntchito sensa ya kuthamanga kwa mpweya woziziritsa mpweya m'galimoto imachokera pa muyeso wa kuthamanga, nthawi zambiri imakhala ndi filimu yopyapyala ndi gridi ya resistors. Pamene kuthamanga kwa mpweya woziziritsa mpweya m'galimoto kumasintha, kuthamanga kwa sing'anga yoyezedwa kumatumizidwa ku filimu yomwe ili mu sensa. Filimuyo imasokonekera chifukwa cha kuthamanga, zomwe zimapangitsa kuti gridi yoziritsa mpweya isinthe. Kusintha kwa kukana kumeneku kumatha kuzindikirika ndikuwerengedwa ndi dera lolumikizidwa ku dashboard kapena gawo lina lowongolera.
Kugwiritsa ntchito masensa oziziritsa mpweya m'magalimoto kumaphatikizapo mitundu yambiri, mtundu uliwonse uli ndi ntchito yake komanso malo ake oikira. Mwachitsanzo, switch yamagetsi okwera imayikidwa pa chitoliro cholowera cha condenser kuti isinthe liwiro la mota ya fan ndikuwonetsetsa kuti kuthamanga kwa condenser kumakhala kotetezeka. Ngati kuthamanga kwa condenser kuli kotsika kuposa 1.51 mpa, fan imasunga liwiro lotsika. Kuthamanga kukapitirira 1.5 mpa, fan imathamanga kwambiri. Kuphatikiza apo, switch yotenthetsera kawiri imakhala pafupi ndi condenser ndipo imaphatikiza switch yotenthetsera kwambiri ndi kutentha kwa injini yoziziritsa mpweya kuti ilamulire kugwira ntchito kwa mota ya fan yoziziritsa mpweya. Pamene kutentha kwa coolant kuli pakati pa 95 ndi 102 ° C, fan imazungulira mofulumira kwambiri; Pamene kutentha kukapitirira 102 ° C, fan imagwira ntchito mofulumira kwambiri.
Ntchito ya sensa ya mpweya woziziritsa m'magalimoto mu makina oziziritsa m'magalimoto ndikuteteza makinawo ndikuwonjezera magwiridwe antchito. Amaletsa kupanikizika kwambiri kuti kuwononge zigawo mwa kuyang'anira kusintha kwa kuthamanga kwa mpweya mkati mwa makinawo. Mwachitsanzo, pamene kuthamanga kwa mpweya woziritsa m'magalimoto kuli pansi pa 0.2 mpa kapena kupitirira 3.2 mpa, clutch ya electromagnetic ya compressor imachotsedwa kuti iteteze makinawo; Clutch imakhalabe yogwira ntchito pakati pa 0.22 ndi 3.2 mpa. Kuphatikiza apo, chosinthira kutentha chakunja chimachotsa clutch ya electromagnetic ya compressor pamene kutentha kuli pansi pa 5 ° C, zomwe zimalepheretsa compressor yoziziritsa m'magalimoto kugwira ntchito pa kutentha kochepa.
Ngati mukufuna kudziwa zambiri, pitirizani kuwerenga nkhani zina patsamba lino!
Chonde tiimbireni foni ngati mukufuna zinthu zotere.
Malingaliro a kampani Zhuo Meng Shanghai Auto Co., Ltd. yadzipereka kugulitsa zida zamagalimoto za MG&750 zolandiridwa kugula.
