Umsebenzi we-sensor yoxinzelelo lokungenisa iimoto
Imisebenzi ephambili yesivamvo soxinzelelo lokungenisa umoya kwiimoto ibandakanya ezi zinto zilandelayo:
Nika isignali yomthwalo wenjini: Isenzi soxinzelelo lokungenisa sibonelela ngesignali yomthwalo wenjini kwi-ECU (iYunithi yokulawula injini) ngokulinganisa utshintsho loxinzelelo kwi-manifold yokungenisa. Ezi signali zinceda i-ECU ilawule ngokuchanekileyo ububanzi be-injection pulse kunye nokuvulwa kwe-throttle ukuze iphucule ukusebenza kwenjini kunye nokonga amafutha.
Lawula ukufakwa kwepetroli kunye nexesha lokutsha: Iisensors ziguqula utshintsho loxinzelelo kwi-input manifold zibe ziimpawu zombane ukuze i-ECU ilungise i-input yepetroli kunye nexesha lokutsha. Xa umthwalo wenjini unyuka, uxinzelelo kwi-input manifold luyancipha, isignali yokuphuma kwesensor iyanda, kwaye i-ECU inyusa ubungakanani be-input yepetroli kwaye ilibazise i-input advance Angle. Ngaphandle koko, i-input yepetroli iya kuncitshiswa kwaye i-input iya kutsha.
Lungisa ixesha lokuvula ivalvu yokungenisa kunye nokufakwa kwepetroli: Kwinjini enenkqubo yokulawula ivalvu ye-elektroniki, isenzi soxinzelelo lokungenisa sibona utshintsho loxinzelelo kumbhobho wokungenisa kwaye sibale ngokuchanekileyo umthamo womoya kwisilinda nganye ukuze silungise ixesha lokuvula ivalvu yokungenisa kunye nomthamo wokufakwa kwepetroli. Oku kunceda ukuphucula ukusebenza kakuhle kunye nokukhupha amandla kwenjini.
khusela injini: Isenzi soxinzelelo lokungenisa sinokubona iimeko zokusebenza ezingaqhelekanga zenjini, ezifana notshintsho olungaqhelekanga loxinzelelo, kwaye sithumele imiqondiso kwinkqubo yolawulo ukukhusela injini. Oku kunceda ukuthintela umonakalo wenjini ngenxa yokuxinana okanye ezinye iingxaki.
Umgaqo wokusebenza: I-input pressure sensor idla ngokudityaniswa ne-input manifold ngetyhubhu ye-vacuum kwaye iyaziva utshintsho lwe-vacuum kwi-input manifold. Njengoko isantya senjini kunye nomthwalo zitshintsha, uxinzelelo kwi-input manifold luya kutshintsha, kwaye ukumelana ngaphakathi kwe-sensor kuya kutshintsha ngokufanelekileyo, ngaloo ndlela kuphume isignali ye-voltage. Esi signali sifunyanwa yi-ECU kwaye sisetyenziselwa ukulungisa i-fuel injection kunye nexesha lokutsha.
Impembelelo yempazamo: Ukuba i-sensor yoxinzelelo lokungenisa yonakele, inokukhokelela kwisantya esingazinzanga sokungaqhubeki kakuhle, ukukhawulezisa okubuthathaka, ubunzima bokuqalisa, ukusetyenziswa kwepetroli okwandisiweyo kunye nezinye iingxaki zesithuthi. Kwangaxeshanye, isibane sempazamo yenjini siya kukhanyiswa, kwaye ikhowudi yempazamo ehambelanayo iya kugcinwa.
Ngoko ke, ukuhlolwa rhoqo kunye nokugcinwa kwe-intake pressure sensor kubalulekile ukuqinisekisa ukusebenza okuqhelekileyo kwesithuthi.
I-Manifold Absolute Pressure Sensor (MAP) yinxalenye ebalulekileyo kwinjini yeemoto ejonga utshintsho loxinzelelo kwi-intake manifold kwaye iguqula olu tshintsho lube ziimpawu zombane ukuze kulawulwe ngokuchanekileyo yiyunithi yolawulo lwe-elektroniki yenjini (ECU). I-intake pressure sensor iqhagamshelwe kwi-intake manifold ngetyhubhu ye-vacuum kwaye inokuliva utshintsho lwe-vacuum kwi-intake manifold. Ngesantya senjini kunye nomthwalo owahlukileyo, ukumelana ngaphakathi kwe-sensor kuya kutshintsha, okuya kuguqulwa kube yisignali ye-voltage ukuze i-ECU ilungise ubungakanani be-injection fuel kunye nexesha lokutsha .
Umgaqo wokusebenza
Umgaqo wokusebenza we-input pressure sensor usekelwe kutshintsho lokuxhathisa olubangelwa kukutshintsha koxinzelelo. Thatha i-varistor type inlet pressure sensor njengomzekelo, icandelo layo eliphambili yi-silicon diaphragm eyenziwe nge-piezoresistive effect ye-semiconductor. Xa uxinzelelo lwe-input manifold lusebenza kwi-silicon diaphragm, i-diaphragm iya kuguquka, nto leyo ebangela utshintsho kwixabiso layo lokuxhathisa. Olu tshintsho luguqulwa lube yisignali yombane, eyandiswa kwaye idluliselwe kwi-ECU. Ngokusekelwe kwi-voltage yesignali efunyenweyo, i-ECU ilawula ngokuchanekileyo i-basic fuel injection ukuze ivumelane neemfuno ezahlukeneyo zokuqhuba .
Iintlobo kunye nezicelo
Kukho iintlobo ezininzi zee-input pressure sensors, ezixhaphakileyo yi-semiconductor varistor, i-vacuum bellows kunye ne-capacitive. Phakathi kwazo, i-semiconductor varistor isetyenziswa kakhulu kwinkqubo ye-D-type injection ngenxa yeenzuzo zayo zokuphendula ngokukhawuleza, ukuchaneka okuphezulu, ubungakanani obuncinci kunye nokufakelwa okuguquguqukayo. I-capacitive sensor isebenzisa i-diaphragm ukwenza into ebuthathaka kuxinzelelo enexabiso le-capacitance eguquguqukayo, kwaye iguqula utshintsho loxinzelelo lube yisignali yombane ngokulinganisa isekethe.
Ukugcinwa kunye nokuxilongwa kwempazamo
Ukuxilongwa kwempazamo ye-input pressure sensor kudla ngokubandakanya ukujonga ukuba i-output signal yayo ingaphakathi koluhlu oluqhelekileyo. Ukuba i-sensor output signal ayiqhelekanga, ukusebenza kwenjini kunokwehla okanye kungazinzile. Ngexesha lokulungiswa, jonga rhoqo uqhagamshelo kunye nokutywinwa kwe-sensor ukuqinisekisa ukuba isebenza ngokufanelekileyo.
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