Indima kunye noMgaqo wokuSebenza we-NTC Thermistor Temperature Sensors kwii-Automotive Power Steering Systems.

I-NTC (i-Negative Temperature Coefficient) izinzwa zobushushu be-thermistor zidlala indima ebalulekileyo kwiisistim zokulawula amandla emoto, ngokuyintloko ukujonga ubushushu kunye nokuqinisekisa ukhuseleko lwenkqubo. Ngezantsi luhlalutyo oluneenkcukacha lwemisebenzi yabo kunye nemigaqo yokusebenza:

I. Imisebenzi ye-NTC Thermistors

1. Ukukhuselwa kobushushu obugqithisileyo
   • Ukujongwa koBubushushu beMoto:Kwiinkqubo zoLawulo lwaMandla oMbane (EPS), ukusebenza kweemoto ixesha elide kunokukhokelela ekushiseni okugqithisileyo ngenxa yomthwalo ogqithisileyo okanye izinto zokusingqongileyo. Isivamvo se-NTC sijonga ubushushu bemoto ngexesha lokwenyani. Ukuba iqondo lokushisa lidlula umda okhuselekileyo, inkqubo iyanciphisa amandla ombane okanye ibangele amanyathelo okukhusela ukukhusela umonakalo wemoto.
   • Ukujongwa koBubushushu be-Hydraulic Fluid:Kwiinkqubo ze-Electro-Hydraulic Power Steering (EHPS), ubushushu obuphakamileyo be-hydraulic fluid kunciphisa i-viscosity, ukuthoba uncedo lokuqhuba. Isivamvo se-NTC siqinisekisa ukuba ulwelo luhlala ngaphakathi koluhlu lokusebenza, lukhusela ukuthotywa kwetywina okanye ukuvuza.
2. UPhuculo lokuSebenza kweNkqubo
   • Imbuyekezo yoBuqondo obuphantsi:Kumaqondo obushushu aphantsi, ukonyuka kwe-hydraulic fluid viscosity kunokunciphisa uncedo lokuqhuba. Isivamvo se-NTC sibonelela ngedatha yobushushu, ivumela inkqubo ukuba ilungelelanise iimpawu zoncedo (umzekelo, ukunyuka kwemoto yangoku okanye ukulungelelanisa ukuvuleka kwevalvu ye-hydraulic) ukwenzela ukuziva ngokuqhubekayo.
   • Ulawulo olunamandla:Idatha yobushushu bexesha langempela ikhulisa ii-algorithms zokulawula ukomeleza ukusebenza kakuhle kwamandla kunye nesantya sokuphendula.
3. Uxilongo lweFault kunye noKhuseleko oluNgafunekiyo
   • Ifumanisa iimpazamo zoluvo (umzekelo, iisekethe ezivulekileyo/ezimfutshane), ivuselela iikhowudi zeempazamo, kwaye ivule iindlela ezisileleyo zokhuseleko ukugcina ukusebenza okusisiseko.

II. UmGaqo wokuSebenza we-NTC Thermistors

1. Ubushushu-Ukumelana nobudlelwane
   Ukuxhathisa kwe-thermistor ye-NTC kuncipha ngokukhawuleza ngokunyuka kwamaqondo obushushu, ngokulandela le fomula:

                                                             RT=R0⋅eB(T1−T01)

AphoRT= ukumelana nobushushuT,R0 = ukuxhathisa okuqhelekileyo kwiqondo lokushisaT0​ (umzekelo, 25°C), kunyeB= izinto eziphathekayo.

2. Uguqulo loMqondiso kunye noLungiselelo
   • I-Voltage Divider Circuit: I-NTC idityaniswe kwi-voltage divider circuit kunye ne-resistor esisigxina. Utshintsho olubangelwa yiqondo lokushisa luguqula i-voltage kwi-node ye-divider.
   • Ukuguqulwa kwe-AD kunye nokubala: I-ECU iguqula umqondiso wombane kwiqondo lobushushu usebenzisa iitafile zokujonga okanye i-equation ye-Steinhart-Hart:

                                                             T1=A+BNONER)+C(ln(R))3

• I-Threshold Activation: I-ECU ibangela izenzo zokukhusela (umzekelo, ukuncitshiswa kwamandla) ngokusekelwe kwimigangatho emiselweyo (umzekelo, i-120 ° C yeemoto, i-80 ° C ye-hydraulic fluid).
2. Ukuguquguquka kokusingqongileyo
   • Ukupakishwa okuqinileyo: Isebenzisa ubushushu obuphezulu, ukumelana ne-oyile, kunye nezixhobo zokuthintela ukungcangcazela (umzekelo, i-epoxy resin okanye intsimbi engaxutywanga) kwimo engqongileyo yeemoto.
   • Ukuhluza Ingxolo: Iisekethe zokulungisa imiqondiso zibandakanya izihluzi ukuphelisa ukuphazamiseka kwe-electromagnetic.

     

III. Usetyenziso oluqhelekileyo

1. I-EPS Motor Winding Temperature Monitoring
   • Ifakwe kwi-stators yemoto ukubona ngokuthe ngqo ubushushu obujikelezayo, ukuthintela ukusilela kwe-insulation.
2. Hydraulic Fluid Circuit Temperature Monitoring
   • Ifakwe kwiindlela zokujikeleza kwamanzi ukukhokela ukulungiswa kwevalve yokulawula.
3. I-ECU yokuJonga ukuNcitshiswa koBubushushu
   • Ubeka iliso kwi-ECU yobushushu bangaphakathi ukuthintela ukuthotywa kwecandelo lombane.

IV. Imingeni yobuGcisa kunye nezisombululo

• Imbuyekezo yokungahambelani:Ulungelelwaniso oluchanekileyo oluphezulu okanye ulungelelwaniso olucekethekileyo luphucula ukubalwa kobushushu obuchanekileyo.
• UPhumo lwexesha leMpendulo:Iifom ze-NTC ezincinci zinciphisa ixesha lokuphendula nge-thermal (umzekelo, <10 imizuzwana).
• Uzinzo Lwexesha elide:Ii-NTC zebakala le-Automotive (umzekelo, i-AEC-Q200 eqinisekisiweyo) iqinisekisa ukuthembeka kuwo wonke amaqondo obushushu abanzi (-40 ° C ukuya kwi-150 ° C).

Isishwankathelo

Ii-thermistors ze-NTC kwiisistim zokulawula amandla emoto zenza ukuba kujongwe ubushushu bexesha lokwenyani ukuze kukhuselwe ubushushu obugqithisileyo, ukwenziwa ngcono kokusebenza, kunye nokuxilongwa kwempazamo. Umgaqo wabo ongundoqo uphakamisa utshintsho oluxhomekeke kwiqondo lokushisa, ludityaniswe noyilo lwesekethe kunye nolawulo lwe-algorithms, ukuqinisekisa ukusebenza okukhuselekileyo nokusebenzayo. Njengoko ukuqhuba ngokuzimeleyo kuguquka, idatha yobushushu iya kuxhasa ngakumbi ukugcinwa kwangaphambili kunye nokuhlanganiswa kwenkqubo ephezulu.