Izingxenye zezimoto ze-Dongfeng Cummins intake pressure sensor 4921322

Inzwa Yokucindezela Okuphelele Okuningi (MAP).

Ixhuma i-multifold intake tube ne-vacuum tube, futhi ngesivinini esihlukile senjini, izwa ushintsho lwe-vacuum endaweni eningi yokuthatha, bese iyiguqulela isignali kagesi kusukela ekushintsheni kokumelana kwangaphakathi kwenzwa ukuze i-ECU ilungise. ubuningi bomjovo kaphethiloli kanye ne-engeli yesikhathi yokubasa.

Enjinini ye-EFI, inzwa yokucindezela kokuthatha isetshenziselwa ukuthola umthamo womoya owuthathayo, obizwa nge-D-type injection system (uhlobo lwe-velocity density). Inzwa yokucindezela komoya oyithathayo ithola ivolumu yomoya ongenayo ngokungaqondile esikhundleni sokuyizwa ngqo njengenzwa yokugeleza komoya ongenayo. Ngesikhathi esifanayo, iphinde ithinteke yizici eziningi, ngakho-ke kunomehluko omningi phakathi kokutholwa nokugcinwa kwenzwa yokugeleza komoya oyithathayo, futhi amaphutha abangelwa yikho nawo anemininingwane yawo.

Inzwa yokucindezela kokuthatha ithola ukucindezela okuphelele kwe-multifold intake ngemuva kwe-throttle. Ibona ukuguqulwa komfutho ophelele ku-manifold ngokwejubane nomthwalo wenjini, bese iyiguqulela kugesi wesignali bese iyithumela kuyunithi yokulawula injini (ECU). I-ECU ilawula ubuningi bomjovo kaphethiloli oyisisekelo ngokuya ngevolthi yesiginali.

isimiso sokusebenza

Kunezinhlobo eziningi zezinzwa zokucindezela kokuthatha, njenge-varistor ne-capacitor. Ngenxa yezinzuzo zesikhathi sokuphendula ngokushesha, ukunemba okuphezulu kokutholwa, usayizi omncane nokufakwa okuguquguqukayo, i-varistor isetshenziswa kabanzi ohlelweni lomjovo wohlobo lwe-D.

isakhiwo sangaphakathi

Inzwa yokucindezela isebenzisa i-press chip ukuze kukale ingcindezi, futhi i-pressure chip ihlanganisa ibhuloho le-Wheatstone ku-silicon diaphragm engase yonakaliswe ukucindezela. I-chip ye-pressure iyinhloko yenzwa yokucindezela, futhi bonke abakhiqizi abakhulu bezinzwa zokucindezela banama-chips abo okucindezela, amanye akhiqizwa ngokuqondile abakhiqizi bezinzwa, ezinye zazo ziyi-special-purpose chips (ASC) ezikhiqizwe yi-outsourcing. , kanti enye iwukuthenga ngokuqondile ama-chips enhloso evamile kubakhi bamashiphu abangochwepheshe. Ngokuvamile, ama-chips akhiqizwa ngokuqondile abakhiqizi bezinzwa noma ama-chips e-ASC enziwe ngokwezifiso asetshenziswa kuphela emikhiqizweni yawo. Lawa ma-chips ahlanganiswe kakhulu, futhi i-chip pressure, i-amplifier circuit, i-chip yokucubungula isignali, isifunda sokuvikela se-EMC kanye ne-ROM yokulinganisa ijika lokuphuma kwenzwa konke kuhlanganiswe ku-chip eyodwa. Inzwa yonke iyi-chip, futhi i-chip ixhunywe nephinikhodi yesixhumi ngemikhondo.