Onboard Diagnostics II (OBD-II) ndi dongosolo lovomerezeka lomwe makompyuta oyendetsa magalimoto ndi magalimoto amagwiritsira ntchito kudzifufuza ndi kulengeza. Ndondomekoyi inachokera ku malamulo a California (CARB), ndipo idakhazikitsidwa ndi zomwe zinafotokozedwa ndi Society of Automotive Engineers (SAE).
Mosiyana ndi kale, machitidwe a OBD-I eni OEM, machitidwe a OBD-II amagwiritsa ntchito njira zofanana zoyankhulirana, malemba, ndi zolumikiza kuchokera kwa wopanga wina kupita ku wina. Izi zimathandiza kuti pulogalamu imodzi yokha ya OBD-II ikhale ndi mwayi wopeza mauthenga omwe makinawa amatha kupangira zonse zomwe zimapangidwa kuchokera mu 1996, yomwe inali yoyamba yomwe OBD-II ankafunikila kudera lonselo.
Mitundu ya scanning OBD-II
Pali magawo awiri ofunikira a OBD-II omwe mungakumane nawo kuthengo.
- Owerenga adilesi
- Owerenga kachidindo a OBD-II amakhala otsika mtengo, opanda frills omwe angathe kuwerenga ndi kuwonetsa ma code kuchokera pa galimoto iliyonse yomwe ili ndi OBD-II. Zida zimenezi zili ndi zochepa zochepa zomwe zimachititsa kuti iwo asakhale ndi chidziwitso chilichonse pazipangizo zomwe zimapangidwira komanso amapereka mwayi wochepa (kapena ayi) kupeza zina.
- Sakani Zida
- Zida zojambulidwa ndi OBD-II ndizowona mtengo, ndipo zimatha kupereka zosiyana zosiyanasiyana. Kugwiritsa ntchito zida zowonjezera kungapereke mwayi wambiri wopeza kapena kudziwa zambiri zokhudza zipangizo zomwe zimapangidwira, kupereka zowonjezera, zowonjezereka zopezeka pa deta yomwe mukukhala ndi yolemba komanso kupereka zambiri zokhudzana ndi mavuto.
Kodi Vuto Loyamba Ndilo Loyamba Lingathe Bwanji?
Kugwira ntchito kwajambulidwa ndi OBD-II kumadalira ngati ndi "chiwerengero cha" code reader "kapena" scan tool ". kupereka zowonjezera zidziwitso zowonjezera, kupereka mwayi wotsogoleredwa ndi machitidwe otsogolera, ndi zina zogwirira ntchito.
Zida zonse za OBD-II zimapereka ntchito zina zofunika, zomwe zimaphatikizapo luso lowerenga ndi loyera. Zipangidwezi zingaperekenso mphamvu yowunika, kapena zofewa, zizindikiro zomwe sizinayambe kuyang'ana injini yowunika, komabe zimapereka mwayi wopeza zambiri. Deta kuchokera pafupifupi sensa iliyonse yomwe imapereka ndondomeko kwa kompyutala yowonongeka ikhoza kuwonedwa kudzera mujambuzi la OBD-II, ndipo zina zopanganso zingathe kukhazikitsa mndandanda wa zizindikiro za parameter IDs (PIDs). Zipangidwe zina zimaperekanso mwayi wowonerera okonzekera ndi zina.
Kodi OBD-II Zimasintha Bwanji Ntchito?
Popeza machitidwe a OBD-II ali ofanana, ma scanni OBD-II ndi osavuta kugwiritsa ntchito. Onse amagwiritsa ntchito chojambulira chomwecho, chomwe chimatanthauzidwa ndi SAE J1962. Zida zowonongeka zimagwira ntchito pokhapokha kuika chigamulo chonse mu OBD-II kulumikizira kogwiritsira ntchito galimoto. Zida zamakono zowonongeka zimaphatikizaponso mafungulo kapena ma modules omwe amachititsa kuti chidziwitso cha padziko lonse chikhale chothandizira kapena chogwirizana ndi mauthenga kapena maulamuliro a OEM.
Kusankha OBD-II Wowonongeka
Ngati muli ndi galimoto yomwe inamangidwa pambuyo pa 1996 ndikugwira ntchito iliyonse, kaya mumasungire ndalama kapena chifukwa chakuti mumakonda kusamba m'manja, ndiye kuti scanner ya OBD-II ikhoza kukhala yowonjezera ku bokosi lanu. Komabe, izo sizikutanthauza kuti makina onse a kumbuyo ayenera kupita pansi ndi kusiya $ 20,000 pa chida chapamwamba chojambulira kuchokera ku Snap-on kapena Mac.
Zokonza-zopangidwa ndiwekha zimakhala ndi zosankha zambiri zosakwera mtengo kuti mufufuze, kotero inu mukufuna kuti muwone izo musanagule. Mwachitsanzo, mbali zambiri zamasitolo zidzasanthula ma code anu kwaulere, ndipo mukhoza kupeza zambiri zowunikira zaulere pa intaneti. Nthawi zambiri, izi zingakhale zonse zomwe mukusowa.
Ngati mukufuna kusinthasintha pang'ono, pali zida zingapo zomwe mungathe kuzifufuza. Owerenga adilesi odzipatulira omwe amaperekanso mwayi wa PIDs ndi njira imodzi yomwe mungayang'ane, ndipo nthawi zambiri mumapeza ndalama zabwino zoposa $ 100. Njira ina, makamaka ngati muli ndi Smartphone yapamwamba ya Android, ndi ELM 327 Bluetooth scanner , yomwe ndi njira yotsika mtengo yofunikira kwambiri.