ʻO ka mea ʻike wela ambient BMW e39

ʻAʻole wau i kākau i kekahi mea no ka manawa lōʻihi, ʻoiai, he ʻoiaʻiʻo, aia nā manawa hoihoi, akā, auwe, ʻaʻole wau i kiʻi i nā kiʻi, ʻaʻole wau i kākau.

E hāpai au i ka pilikia me ka ʻike wela ma luna o BMW 65816905133 E38 E46 E87 E90. Ua hackney ke kumuhana a he nui ka ʻike ma luna o ia mea, akā aia nā nuances liʻiliʻi aʻu e makemake ai e kākau e pili ana.

Hoʻoholo i nā pilikia.

1) Ma nā hōʻike i kauoha ʻia -40 degere

No laila ua haki ka sensor. Inā hoʻokomo ʻia ka sensor, a laila pono ʻoe e nānā mua iā ia me kahi multimeter. Pono ke kū'ē o ka sensor hana ma kahi o 3-5 kOhm. Inā hōʻike ka multimeter i ke kūpaʻa palena ʻole a i ʻole ke kiʻekiʻe loa (haneri o kOhms), a laila hewa ka ʻike a pono e hoʻololi ʻia.

A laila e nānā i ke ʻano o nā uea ma kahi i hoʻopili ʻia ai ka chip, ua haki a haki paha nā uwea.

2) Ua hōʻike ʻia ke kauoha +50 degere.

Hana ʻia inā he pōkole pōkole i nā kaula e hele ana i ka mea ʻike, a i ʻole ke kaʻapuni pōkole i loko o ka mea ʻike (he hihia maʻamau ke hoʻohana ʻia nā mea ʻike Kina). E nānā i ka mea ʻike me ka multimeter a inā kokoke kona kūpaʻa i ka ʻole, hiki iā ʻoe ke hoʻāʻo e hoʻōla i kēia ʻike. Aia kahi kaapuni pōkole, e like me kaʻu i kākau ai ma nā sensor Kina, ma muli o ka hiki ʻana o nā mea pili ke komo i loko o ka hale sensor. E lawe i nā wili lahilahi a me ka hoʻoikaika iki e huki i nā mea pili i ko lākou kūlana mua. ʻO kēia kaʻu i hoʻāla hou ai i ka sensor i hoʻouna ʻia iaʻu mai aliexpress. I ka hoʻomaka ʻana, e hana ana, akā ma hope o kekahi mau hoʻopili kūleʻa ʻole, ua puhi ka fuse pili.

3) Hōʻike ka maʻemaʻe i ka wela hewa, haʻahaʻa loa.

Loaʻa kēia ma muli o ka ʻino ʻana o nā uwea a i ʻole ka oxidation o nā pilina sensor. E hoʻomaʻemaʻe i nā mea hoʻopili ma ka chip me kahi nila, a nānā pū i nā uea. E hoʻololi i ka chip inā hiki. Hiki ke kūʻai ʻia ka puʻupuʻu kahiko i nā uea, ʻo ka mea nui ʻo ka wehe pono ʻana a hoʻohui hou.

ʻO kahi sensor e koho ai.

ʻO ka mea ʻike wela o luna he thermistor maʻamau a maʻalahi i hoʻoheheʻe ʻia i loko o kahi pahu plastik, a inā he keleawe a keleawe paha nā kumu kahiko e hiki ai iā ʻoe ke hoʻololi koke i ka wela i ka thermoelement, a laila ʻaʻole ʻokoʻa nā mea ʻike hou mai ka hana Kina. Eia kekahi, ʻaʻole wau e kāhāhā inā ma nā hale kūʻai kaʻa e kūʻai ʻia nā sensor Kina ma ke kumukūʻai o nā kumu. ʻAe, he mea maikaʻi - kūʻai au iā ia no ke kālā, a kūʻai aku no 10. No laila, e hāʻawi wau i nā koho kūpono no ke koho ʻana i kahi sensor.

• Kūʻai ʻoe i thermistor ma kahi mākeke lekiō.

Inā makemake ʻoe e hana i kēia me ka maʻalahi a me ka wikiwiki e like me ka hiki, e ʻimi wale i kahi thermistor 4,7 kΩ ma ka hale kūʻai lekiō. Hiki iā ʻoe ke heluhelu hou aku e pili ana i ka thermistor maanei. ʻO ka pōmaikaʻi nui o kēia hoʻonā, ʻaʻole pono ʻoe e ʻimi i nā chips inā ʻaʻole ʻoe (i ʻoki ʻia me ka ʻiʻo). Eia kekahi, ʻo ka hoʻoholo hoʻolālā ma kahi e kau ai ia iā ʻoe, e ʻae iā ʻoe e kau i ka thermistor i kekahi wahi kūpono, ʻo ia hoʻi ʻaʻole pono ʻoe e hoʻololi i ka sensor.

• Ke kūʻai ʻana i kahi sensor Kina.

E like me kaʻu i kākau mua ai, loaʻa nā pilina ma luna o ia mau sensor, e alakaʻi ana i +50 ma luna. ʻO ka mea nui ma ʻaneʻi ʻo ka hoʻokomo pono ʻana iā ia i loko o ka chip. He ʻāpana paʻa ka thermistor, maikaʻi loa ka hale sensor, akā ʻaʻole i aʻo ka poʻe Kina pehea e hana ai i nā pilina hilinaʻi. I koʻu hihia, ua koho wau i kahi hopena, akā ʻaʻole hiki iaʻu ke loaʻa kahi e hoʻopili ai i ka sensor i ka bumper. No laila, hoʻopaʻa wau iā ia ma ka screed ma kahi palekana no ka sensor. loulou i hōʻoia ʻia i aliexpress.

• Ke kūʻai ʻana i kahi kumu kahiko.

ʻO ia ke kumu me ke keleawe a me ke keleawe. I ke kūʻai ʻana, pono ʻoe e lawe i kahi multimeter e nānā i ka sensor. Manaʻo wau ʻaʻole ʻoe e ʻike i ka ʻokoʻa me ka aftermarket a i ʻole thermistor.

Mea nui! Ua loli koke ke kū'ē o kahi thermocouple. Ua lawa ka lawe ʻana i ka sensor ma kou lima, ʻoiai e hoʻololi koke i kona kūʻē. Akā ke kau ʻia nei i loko o ke kaʻa, no kekahi kumu, ʻaʻole makemake ka mea kauoha e hōʻike i nā loli me ka wikiwiki a me ka ikaika. Ma muli paha o ke alapine o ka anamanaʻo a me ka hoʻāʻo ʻana e awelika i ka heluhelu ʻana i ʻole e loli ka mahana i kēlā me kēia manawa e hele ai i ka pūnaewele hoʻomehana a i ʻole nā ​​kumu wela ʻē aʻe. No laila, ma hope o ka hoʻokomo ʻana i ka sensor, e lilo ka mahana i -40 degere, a pono ʻoe e kali i nā hola 1-2 a hiki i ka hoʻi ʻana o ka mahana i ka maʻamau.

Mea nui! Inā hoʻokele ʻoe i ke kauwela me kahi mahana o -40 degere, a laila ua hoʻomehana ʻoe i nā aniani a me nā nozzles holoi i ka mana piha. Hiki i kēia ke hōʻino i nā mea wela o kēia mau mea! He mea pono e hoʻomaopopo i ka hana ʻana o ka hoʻomehana ʻana o nā aniani a me nā nozzles i ka wā wela. Ma kahi o ka manual no ka hana a me ka mālama ʻana o ke kaʻa aia kahi pā e hōʻike ana i ka lōʻihi o ka hana ʻana o ka hoʻomehana ʻana i kekahi mau pae wela.