Zvikamu zvemotokari zveDongfeng Cummins inotora kudzvanywa sensor 4921322

Manifold Absolute Pressure Sensor (MAP).

Iyo inobatanidza manifold ekutora nechubhu yevacuum, uye neinjini yekumhanyisa mota yakasiyana, inonzwa shanduko yevacuum mune yakawanda yekudyara, uye yozoishandura kuita chiratidzo chevoltage kubva mukushandurwa kwekupikiswa kwemukati kwe sensor kuti ECU igadzirise. huwandu hwejekiseni yehutsi uye yekubatidza nguva yekona.

MuEFI injini, iyo intake pressure sensor inoshandiswa kuona huwandu hwemhepo inopinza, iyo inonzi D-type jekiseni system (velocity density type). Kutora mhepo yekumanikidza sensor inoona kupinza kwemhepo vhoriyamu zvisina kunanga panzvimbo yakananga seyekupinza kuyerera kwemhepo sensor. Panguva imwecheteyo, iyo inobatwawo nezvinhu zvakawanda, saka kune misiyano yakawanda pakati pekuona nekugadzirisa kwekutora mhepo inoyerera sensor, uye zvikanganiso zvinokonzerwa nazvo zvinewo zvayo.

Iyo yekutora pressure sensor inoona iyo yakazara kudzvanywa kweiyo manifold yekutora kuseri kwe throttle. Iyo inoona shanduko yeakazara kudzvanywa mune yakawanda zvinoenderana nekumhanya kweinjini uye mutoro, uye yozoishandura kuita chiratidzo chemagetsi uye inotumira kune injini yekudzora unit (ECU). Iyo ECU inodzora iyo yakakosha jekiseni huwandu hunoenderana neiyo chiratidzo voltage.

musimboti wekushanda

Kune akawanda marudzi ekutora kumanikidza masensa, akadai sevaristor uye capacitor. Nekuda kwemabhenefiti ekukurumidza kupindura nguva, yakakwirira yekuona kurongeka, diki saizi uye inochinjika kuisirwa, varistor inoshandiswa zvakanyanya muD-mhando jekiseni system.

chimiro chemukati

Iyo pressure sensor inoshandisa pressure chip yekuyeresa kuyerwa, uye pressure chip inobatanidza bhiriji reWheatstone pane silicon diaphragm inogona kukanganiswa nekumanikidza. Iyo yekumanikidza chip ndiyo musimboti weiyo pressure sensor, uye vese vagadziri vakuru vepressure sensors vane yavo yekumanikidza machipisi, mamwe acho anogadzirwa zvakananga nevagadziri ve sensor, mamwe acho ari akakosha-chinangwa machipisi (ASC) anogadzirwa nekunze. , uye imwe yacho ndeyekutenga zvakananga-yechinangwa machipisi kubva kune nyanzvi vanogadzira chip. Kazhinji, machipi anogadzirwa zvakananga nevagadziri ve sensor kana akagadziridzwa ASC machipisi anongo shandiswa muzvigadzirwa zvavo. Aya machipisi akabatanidzwa zvakanyanya, uye iyo pressure chip, amplifier circuit, chiratidzo chekugadzirisa chip, EMC kudzivirira wedunhu uye ROM yekuenzanisa iyo inobuda curve ye sensor zvese zvakabatanidzwa mune imwe chip. Iyo yese sensor ndeye chip, uye chip yakabatana nePIN pini yekubatanidza kuburikidza nemitungamiri.