Nā ʻāpana kaʻa no Dongfeng Cummins intake pressure sensor 4921322

Manifold Absolute Pressure Sensor (MAP).

Hoʻohui ia i ka intake manifold me kahi ʻōpala, a me ka ukana ʻokoʻa o ka ʻenekini, ʻike ʻo ia i ka hoʻololi ʻana o ka momi i loko o ka intake manifold, a laila hoʻololi iā ia i kahi hōʻailona uila mai ka hoʻololi ʻana o ke kūʻē kūloko o ka ʻike no ka ECU e hoʻoponopono. ka nui o ka wahie injection a me ke kihi manawa ʻā.

Ma ka mīkini EFI, hoʻohana ʻia ka mea ʻike puʻe intake e ʻike i ka nui o ka ea intake, i kapa ʻia ʻo D-type injection system (velocity density type). ʻIke ʻia ka nui o ka ea hoʻokomo me ka pololei ʻole ma ke ʻano pololei e like me ka ʻike ea kahe. I ka manawa like, ua hoʻopilikia ʻia e nā kumu he nui, no laila he nui nā ʻokoʻa ma waena o ka ʻike a me ka mālama ʻana i ka sensor kahe ea intake, a ʻo nā hewa i hoʻokumu ʻia e ia pū kekahi.

ʻIke ka mea ʻike puʻe intake i ke kaomi piha o ka intake manifold ma hope o ka throttle. ʻIke ʻo ia i ka hoʻololi ʻana o ke kaomi ʻokoʻa i loko o ka manifold e like me ka wikiwiki o ka ʻenekini a me ka ukana, a laila hoʻohuli iā ia i kahi volta hōʻailona a hoʻouna iā ia i ka ʻenekini mana (ECU). Mālama ka ECU i ka nui o ka wahie hoʻoheheʻe kumu e like me ka volta hōʻailona.

kumu o ka hana

Nui nā ʻano o nā mea ʻike kaomi intake, e like me varistor a me ka capacitor. Ma muli o ka maikaʻi o ka manawa pane wikiwiki, ka pololei ʻike kiʻekiʻe, ka liʻiliʻi liʻiliʻi a me ka hoʻonohonoho maʻalahi, hoʻohana nui ʻia ka varistor i ka ʻōnaehana injection type D.

hale o loko

Hoʻohana ka mea ʻike puʻe i kahi puʻupuʻu puʻupuʻu no ke ana ʻana, a ua hoʻohui ka puʻupuʻu kaomi i kahi alahaka Wheatstone ma kahi diaphragm silicon hiki ke hoʻololi ʻia e ke kaomi. ʻO ka puʻupuʻu puʻupuʻu ke kumu o ka mea kani puʻupuʻu, a ʻo nā mea hana nui a pau o ka puʻuwai puʻupuʻu i loaʻa i kā lākou mau puʻupuʻu puʻupuʻu ponoʻī, ʻo kekahi o ia mau mea i hana pololei ʻia e nā mea hana sensor, ʻo kekahi o ia mau mea kūikawā-purpose chips (ASC) i hana ʻia e outsourcing. , a ʻo ka mea ʻē aʻe ke kūʻai pololei ʻana i nā chips maʻamau mai nā mea hana ʻoihana ʻoihana. ʻO ka maʻamau, hoʻohana wale ʻia nā chips e nā mea hana sensor a i ʻole nā ​​​​pilikia ASC i hana ʻia i kā lākou huahana ponoʻī. Hoʻohui nui ʻia kēia mau ʻāpana, a ʻo ka puʻupuʻu puʻupuʻu, ke kaapuni amplifier, ka chip hana hōʻailona, ​​ke kaapuni pale EMC a me ka ROM no ka calibrating i ka pihi puka o ka sensor ua hoʻohui ʻia i hoʻokahi pahu. ʻO ka mea ʻike holoʻokoʻa he chip, a ua pili ka chip me ka pin PIN o ka mea hoʻohui ma o nā alakaʻi.