High -Voltage Interlock rau
Tshiab Zog Tsheb
Siab -Voltage Interlock Taw Qhia
Tsuas yog thaum lub voj voog sib cuam tshuam tsim lub voj kaw ua tiav tuaj yeem ua rau siab -voltage Cheebtsam ntawm lub tsheb raug suav tias yog ib txwm, thiab tsuas yog tom qab ntawd tuaj yeem siab -voltage hluav taws xob txuas. HVIL teeb liab qhov voltages feem ntau tuaj nyob rau hauv peb daim ntawv: 5V / 12V / PWM lub luag hauj lwm voj voog.
Lub hom phiaj ntawm High-Voltage Interlocking
Lub roj teeb pob ntawm lub zog tshiab tsheb feem ntau ua haujlwm ntawm qhov hluav taws xob siab li 300V-800V, nrog cov dej ntws loj heev. Yog li ntawd, yuav tsum muaj cov cuab yeej tiv thaiv kev nyab xeeb los txhim kho kev nyab xeeb ntawm lub tsheb thiab cov neeg ua haujlwm tu.
Tus tsim ntawm high-voltage interlocks feem ntau yog tsom los daws cov teeb meem hauv qab no:
1. Tiv thaiv cov neeg ua haujlwm saib xyuas los ntawm kev ntsaws thiab tshem tawm thaum lub tshuab hluav taws xob muaj zog: High-voltage connectors muaj ntau cov hlau tiv tauj. Yog hais tias lawv ncaj qha unplugged nyob rau hauv load (tam sim no), ib tug muaj zog hluav taws xob arc yuav raug generated thaum lub sij hawm cov neeg sib cais. Qhov no arc ncav cuag qhov kub thiab txias, ua rau kub hnyiab ntawm qhov sib txuas ntawm cov hlau sib txuas, ua rau muaj kev tiv thaiv kev tiv thaiv, overheating, thiab hluav taws kub. Ib txhij, hluav taws xob arc nws tus kheej kuj yog qhov tseem ceeb ntawm electromagnetic cuam tshuam.
2. Tiv thaiv kev tsis sib haum xeeb ntawm High-Voltage Connectors: Kev vibrations yuav tshwm sim thaum lub tsheb ua haujlwm, lossis kev saib xyuas lossis kev sib tsoo tej zaum yuav ua rau lub siab -voltage connector kom xoob lossis tsis sib xws. Yog tias lub kaw lus tseem tsis tau paub txog thiab txuas ntxiv muab lub zog, qhov kev sib txuas tsis sib xws tuaj yeem ua rau kub dhau vim muaj kev tiv thaiv ntau dhau, ua rau muaj kev phom sij.
3. Muab Kev Ceeb Toom Txog Kev Nyab Xeeb: Ua ntej lub tsheb pib, BMS (Battery Management System) lossis VCU (Vehicle Controller Unit) ua HVIL tus kheej- kuaj xyuas. Yog tias lub Circuit Court tsis qhib, lub kaw lus yuav ceeb toom qhov ua txhaum thiab tiv thaiv lub siab -voltage system los ntawm kev siv hluav taws xob, yog li tiv thaiv cov neeg ua haujlwm thiab kev nyab xeeb ntawm lub tsheb.
Txoj Cai Ua Haujlwm ntawm High-Voltage Interlock
Lub ntsiab lus ntawm high-voltage interlock yog qhov qis-voltage, low-tam sim no teeb liab Circuit Court.
1. Cov Cheebtsam yooj yim
(1) HVIL Signal Source: Feem ntau, qhov qis -voltage (piv txwv li, 5V lossis 12V) saib xyuas teeb liab yog muab los ntawm Battery Management System (BMS) lossis Vehicle Controller Unit (VCU).
(2) HVIL Circuit Court: Ib qho nyias nyias, qis-voltage teeb liab hlau, zoo li "txoj hlua ntawm candied hawthorns," yog txuas rau hauv series los ntawm tag nrho cov siab -voltage Cheebtsam uas yuav tsum tau saib xyuas thiab lawv cov connectors.
(3) HVIL Txais: Lub teeb liab yuav rov qab mus rau qhov chaw saib xyuas ntawm BMS lossis VCU.
2. Cov Txheej Txheem Ua Haujlwm (Nqa qhov "series circuit" feem ntau ua piv txwv)
(1) Lub Xeev Ib txwm (Txhua qhov txuas txuas tau txuas rau)
① BMS xa 5V HVIL saib xyuas teeb liab.
② Cov teeb liab no ntws los ntawm cov pins sib txuas hauv cov connectors ntawm tag nrho cov siab -voltage Cheebtsam, xws li lub cev muaj zog maub los, cua txias compressor, PTC, thiab DC / DC converter.
③ Txij li thaum tag nrho cov connectors yog ntsaws rau hauv, tag nrho cov Circuit Court yog conductive.
④ Lub teeb liab thaum kawg rov qab mus rau qhov kawg ntawm BMS.
⑤ Lub BMS kuaj pom qhov ua tiav rov qab teeb liab, txiav txim siab tias "siab-voltage circuit txuas yog qhov qub," thiab tso cai rau kev ua haujlwm tom ntej xws li ua ntej- them thiab fais fab- qhib.
(2) Lub xeev txawv txav (Txhua qhov txuas yog unplugged lossis xoob)
① Piv txwv tias tus kws tshaj lij tshem tawm lub tshuab cua txias compressor connector thaum kho.
② Lub sijhawm no tus connector no raug rho tawm, nws cov HVIL interlock pins sab hauv yuav txiav ua ntej (tus qauv tsim feem ntau siv qhov "tawg- ua ntej - ua" tus pin configuration).
③ Tag nrho HVIL teeb liab voj raug txiav ntawm qhov no.
④ BMS receiver tam sim ntawd tsis pom cov teeb liab rov qab (voltage ua 0).
⑤ Lub BMS tuaj yeem txheeb xyuas qhov txhaum hauv milliseconds thiab tam sim ntawd siv cov kev ntsuas kev nyab xeeb hauv qab no:
1) Tswb: Lub siab -voltage fault light illuminates ntawm lub ntsuas vaj huam sib luag kom ceeb toom tus neeg tsav tsheb.
2) Fais fab txiav-tawm: Tag nrho cov maub los cuam tshuam tau txiav txim tam sim ntawd kom tsis txhob ua haujlwm, thiab lub ntsiab zoo thiab tsis zoo relays raug txiav, txiav tawm lub hwj chim rau tag nrho lub siab -voltage system.
3) Tshem tawm: Cov khoom xws li lub cev muaj zog tswj tau raug qhia kom nquag tso tawm lub tsheb npav capacitors, sai sai txo qhov voltage mus rau theem kev nyab xeeb.
