Taw qhia: Fais fab roj teeb tswj qhov system (BMS) ua lub luag haujlwm tseem ceeb hauv kev ua kom muaj kev nyab xeeb thiab kev pabcuam lub neej ntawm cov roj teeb tsheb hluav taws xob thiab ua kom muaj kev ua tau zoo ntawm lub roj teeb. Feem ntau, tus kheej voltage, tag nrho voltage, tag nrho cov tam sim no thiab kub yog saib xyuas thiab kuaj nyob rau hauv lub sij hawm, thiab lub sij hawm tsis pub dhau lub sij hawm ntawm lub tsheb maub los.
Yog tias lub zog tswj lub roj teeb tsis ua haujlwm, kev saib xyuas ntawm lub roj teeb yuav ploj, thiab lub xeev ntawm cov roj teeb tsis tuaj yeem kwv yees. txawm tsav tsheb nyab xeeb.
Cov nram qab no teev cov kev ua txhaum ntau yam ntawm lub tsheb fais fab fais fab roj teeb tswj lub tshuab, thiab luv luv txheeb xyuas lawv qhov ua tau, thiab muab cov tswv yim tsom xam thiab cov txheej txheem rau kev siv.
Hom kev ua txhaum ntau thiab cov kev kho mob ntawm lub hwj chim roj teeb tswj qhov system
Hom kev ua txhaum ntawm lub hwj chim roj teeb tswj system (BMS) muaj xws li: CAN system kev sib txuas lus yuam kev, BMS tsis ua haujlwm zoo, qhov txawv txav tau txais, qhov kub thiab txias tau txais, qhov cuam tshuam ntawm rwb thaiv tsev, tag nrho cov kev ntsuas hluav taws xob sab hauv thiab sab nraud, kev them nqi ua ntej, tsis tuaj yeem them nqi. , txawv txav tam sim no zaub txhaum, high voltage interlock tsis ua hauj lwm, thiab lwm yam.
1. TSIS MUAJ kev sib txuas lus tsis ua hauj lwm
Yog tias CAN cable lossis fais fab cable raug txiav, lossis lub davhlau ya nyob twg raug rho tawm, nws yuav ua rau kev sib txuas lus tsis ua haujlwm. Nyob rau hauv lub xeev ntawm kev ua kom lub cev muaj zog mov ntawm BMS, kho lub multimeter mus rau DC voltage iav, kov cov liab xeem coj mus rau lub internal CANH, thiab cov dub xeem coj mus kov lub internal CANL, thiab ntsuas cov zis voltage ntawm lub kab kev sib txuas lus, uas yog, qhov hluav taws xob ntawm CANH thiab CANL hauv kab kev sib txuas lus. Tus nqi hluav taws xob li qub yog li 1 txog 5V. Yog tias tus nqi hluav taws xob tsis zoo, nws tuaj yeem txiav txim siab tias BMS kho vajtse tsis raug thiab yuav tsum tau hloov.
2. BMS tsis ua haujlwm zoo
Thaum qhov tshwm sim no tshwm sim, cov hauv qab no tuaj yeem suav hais tias yog:
(1) Fais fab mov voltage ntawm BMS: Ua ntej, ntsuas seb lub hwj chim mov voltage ntawm lub tsheb mus rau BMS muaj ib tug ruaj khov tso zis ntawm lub connector ntawm lub tsheb.
(2) Kev sib txuas tsis zoo ntawm CAN kab lossis kab hluav taws xob qis: Kev sib txuas tsis zoo ntawm CAN kab lossis kab hluav taws xob tso tawm yuav ua rau kev sib txuas lus tsis ua haujlwm. Cov kab kev sib txuas lus thiab cov kab hluav taws xob los ntawm lub rooj tsav xwm tseem ceeb mus rau lub rooj tsav xwm qhev lossis lub rooj tsavxwm high-voltage yuav tsum tau kuaj xyuas. Yog tias pom cov kab hluav taws xob tsis sib txuas, nws yuav tsum tau hloov lossis rov txuas dua.
(3) Kev thim rov qab lossis kev puas tsuaj ntawm cov khoom sib txuas: Kev thim rov qab ntawm qhov kev sib txuas lus tsawg-voltage aviation plug yuav ua rau cov qhev pawg thawj coj tsis muaj zog lossis cov ntaub ntawv los ntawm pawg thawj coj qhev tsis tuaj yeem xa mus rau lub rooj tsavxwm loj. Lub plug thiab connector yuav tsum tau kuaj xyuas thiab hloov yog tias pom tias tau thim rov qab lossis puas lawm.
(4) Tswj lub rooj tsav xwm tseem ceeb: hloov lub rooj tsavxwm rau kev saib xyuas, thiab tom qab hloov, qhov kev ua txhaum raug tshem tawm thiab txiav txim siab tias muaj teeb meem nrog lub rooj tsavxwm loj.
3. Tsis zoo li qhov voltage tau txais
Thaum muaj qhov txawv txav voltage tau tshwm sim, cov xwm txheej hauv qab no yuav tsum tau xav txog:
(1) Lub roj teeb nws tus kheej yog nyob rau hauv voltage: piv cov nqi ntsuas voltage nrog tus nqi voltage ntsuas los ntawm lub multimeter, thiab hloov lub roj teeb tom qab kev pom zoo.
(2) xoob bolts ntawm cov terminals ntawm cov kab sau los yog kev sib cuag tsis zoo ntawm cov kab sib sau thiab cov terminals: xoob bolts los yog kev sib cuag tsis zoo ntawm cov terminals yuav ua rau qhov tsis raug ntawm qhov sib sau ntawm ib lub xov tooj ntawm tes. Nyob rau lub sijhawm no, co cov terminals sib sau ua ke maj mam, thiab tom qab paub meej tias qhov kev sib cuag tsis zoo, nruj lossis hloov cov terminals sau. Hlau.
(3) Lub fuse ntawm cov kab sau tau puas lawm: ntsuas qhov tsis kam ntawm lub fuse, yog tias nws siab dua l S2, nws yuav tsum tau hloov.
(4) Slave board nrhiav teeb meem: Paub meej tias cov khoom siv hluav taws xob tsis sib haum nrog qhov tseeb voltage. Yog tias qhov sib sau ua ke ntawm lwm tus qhev pawg thawj coj ua raws li lub roj teeb hluav taws xob, nws yog ib qho tsim nyog los hloov cov qhev pawg thawj coj saib thiab sau cov ntaub ntawv ntawm qhov chaw, nyeem cov ntaub ntawv keeb kwm txhaum cai, thiab tshuaj xyuas.
4. Kev sau cov kub tsis zoo
Thaum sau qhov kub tsis zoo tshwm sim, tsom rau cov xwm txheej hauv qab no:
(1) Ua tsis tiav ntawm qhov ntsuas kub: Yog tias cov ntaub ntawv kub ib leeg ploj lawm, xyuas qhov nruab nrab pob tw ntsaws. Yog tias tsis muaj kev sib txuas txawv txav, nws tuaj yeem txiav txim siab tias lub sensor puas lawm thiab tuaj yeem hloov tau.
(2) Kev sib txuas ntawm qhov ntsuas kub ntsuas hluav taws xob tsis muaj kev ntseeg siab: Txheeb xyuas qhov nruab nrab ntawm lub taub qab ntsaws lossis qhov ntsuas kub ntsuas hluav taws xob ntawm qhov chaw nres nkoj tswj, yog tias pom tias xoob lossis poob, cov hlua hluav taws xob yuav tsum tau hloov.
(3) Muaj qhov tsis ua haujlwm kho vajtse hauv BMS: Kev saib xyuas pom tias BMS tsis tuaj yeem sau qhov ntsuas kub ntawm tag nrho qhov chaw nres nkoj, thiab lees paub tias cov hlua hluav taws xob los ntawm cov hlua tswj mus rau lub adapter mus rau qhov ntsuas kub ntsuas ntsuas ib txwm txuas, tom qab ntawd Nws tuaj yeem txiav txim siab raws li BMS teeb meem kho vajtse, thiab cov pawg thawj coj qhev sib raug zoo yuav tsum tau hloov.
(4) Seb puas yuav rov thauj cov khoom siv hluav taws xob tom qab hloov lub rooj tsav xwm qhev: Rov qab cov khoom siv hluav taws xob tom qab hloov lub rooj tsav xwm ua qhev, txwv tsis pub tus nqi saib xyuas yuav pom qhov txawv txav.
5. Kev rwb thaiv tsev tsis ua haujlwm
Hauv kev tswj hwm roj teeb hluav taws xob, lub hauv paus tseem ceeb ntawm cov khoom sib txuas ntawm txoj hlua ua haujlwm yog luv luv nrog cov txheej txheem sab nrauv, thiab cov kab hluav taws xob muaj hluav taws xob raug puas tsuaj thiab lub tsheb lub cev yog luv luv, uas yuav ua rau lub rwb thaiv tsev tsis ua haujlwm. . Raws li qhov xwm txheej no, cov hauv qab no tau siv los txheeb xyuas qhov kev kuaj mob thiab kev saib xyuas:
(1) Kev xau ntawm cov khoom siv hluav taws xob siab: Disconnect DC / DC, PCU, charger, cua txias, thiab lwm yam nyob rau hauv ib ntus kom txog rau thaum qhov kev ua txhaum raug daws, thiab tom qab ntawd hloov qhov faulty qhov chaw.
(2) Cov kab hluav taws xob tsis zoo lossis cov khoom sib txuas: siv lub megohmmeter los ntsuas, thiab hloov tom qab kuaj xyuas thiab lees paub.
(3) Dej hauv lub thawv roj teeb lossis roj teeb tawm: Tshem tawm sab hauv lub thawv roj teeb lossis hloov lub roj teeb.
(4) Kev puas tsuaj hluav taws xob sau kab: Tshawb xyuas cov kab sau tom qab paub meej tias cov xau hauv lub thawv roj teeb, thiab hloov nws yog tias pom muaj kev puas tsuaj.
(5) High-voltage board detection cuav tswb: hloov lub high-voltage board, thiab tom qab hloov, qhov txhaum raug tshem tawm, thiab lub high-voltage board detection txhaum yog txiav txim.
6. Nesab tag nrho voltage nrhiav tsis ua hauj lwm
Qhov ua rau ntawm tag nrho qhov ntsuas qhov hluav taws xob tsis ua haujlwm tuaj yeem muab faib ua: xoob lossis poob ntawm qhov tau txais kab thiab lub davhlau ya nyob twg, ua rau tag nrho cov khoom siv hluav taws xob tsis ua haujlwm; xoob txiv ntseej ua rau ignition thiab tag nrho voltage tau txais tsis ua hauj lwm; xoob high-voltage connectors ua rau ignition thiab tag nrho voltage nrhiav tsis ua hauj lwm; Maintenance hloov yog nias ua rau tag nrho cov siab tau txais tsis ua hauj lwm, etc.
(1) Qhov kev sib txuas ntawm lub davhlau ya nyob twg ntawm ob qho kawg ntawm tag nrho cov kab hluav taws xob sau tag nrho yog qhov tsis ntseeg tau: siv lub multimeter los ntsuas qhov ntsuas tag nrho ntawm qhov ntsuas qhov ntsuas thiab muab piv nrog rau tag nrho cov ntsuas hluav taws xob, thiab tom qab ntawd xyuas qhov ntsuas hluav taws xob kom pom tias qhov kev sib txuas. tsis txhim khu kev qha, thiab zawm lossis hloov nws.
(2) Kev sib txuas tsis zoo ntawm cov hluav taws xob hluav taws xob hluav taws xob: siv lub tshuab hluav taws xob los ntsuas tag nrho lub siab ntawm qhov ntsuas qhov ntsuas thiab tag nrho qhov siab ntawm qhov ntsuas ntsuas, thiab sib piv lawv, thiab tom qab ntawd xyuas cov hloov kho, bolts, txuas, kev tuav pov hwm, thiab lwm yam. .
(3) High-voltage board nrhiav kom tau tsis ua hauj lwm: Sib piv qhov tseeb tag nrho cov siab nrog cov saib tag nrho cov siab. Tom qab hloov lub high-voltage board, yog tias tag nrho cov siab rov qab mus rau qhov qub, nws tuaj yeem txiav txim siab tias lub rooj tsavxwm high-voltage yog faulty thiab yuav tsum tau hloov.
7. Precharge tsis ua hauj lwm
Cov laj thawj rau kev them nqi ua ntej tsis ua haujlwm tuaj yeem muab faib ua: sab nraud tag nrho cov khoom siv hluav taws xob sab nraud yog xoob thiab poob tawm, uas ua rau ua ntej them tsis ua haujlwm; lub ntsiab tswj kab tsis muaj 12V voltage, uas ua rau lub pre-them relay tsis kaw; lub pre-them tsis kam yog puas thiab pre-charging tsis. Ua ke nrog lub tsheb tiag tiag, kev tshuaj xyuas tuaj yeem ua tiav raws li pawg hauv qab no.
(1) Kev ua tsis tiav ntawm cov khoom siv hluav taws xob sab nraud: Thaum BMS qhia txog qhov txhaum ua ntej, tom qab txiav tag nrho qhov zoo thiab tag nrho qhov tsis zoo, yog tias qhov kev them nyiaj ua ntej ua tiav, qhov txhaum yog tshwm sim los ntawm cov khoom siv hluav taws xob sab nraud. Kos lub thawv high-voltage junction box thiab PCU nyob rau hauv seem.
(2) Qhov teeb meem ntawm lub rooj tsavxwm tseem ceeb tsis tuaj yeem kaw lub pre-them relay: xyuas seb lub pre-charging relay puas muaj 12V voltage, yog tias tsis yog, hloov lub rooj tsavxwm loj. Yog tias qhov kev them nyiaj ua ntej ua tiav tom qab kev hloov pauv, nws tau txiav txim siab tias lub rooj tsav xwm tseem ceeb yog qhov tsis raug.
(3) Kev puas tsuaj rau lub ntsiab fuse lossis pre-charging resistor: ntsuas qhov txuas ntxiv thiab ua haujlwm ntawm lub fuse ua ntej, thiab hloov yog tias txawv txav.
(4) Kev kuaj xyuas tsis ua haujlwm ntawm tag nrho cov siab sab nraud ntawm lub rooj tsavxwm high-voltage: Tom qab lub rooj tsavxwm high-voltage hloov, lub pre-them ua tiav, thiab qhov txhaum ntawm lub rooj tsavxwm high-voltage tuaj yeem txiav txim siab, thiab nws tuaj yeem ua tau. hloov.
8. Tsis tau them nqi
Qhov tshwm sim ntawm qhov tsis muaj peev xwm them nqi tuaj yeem kwv yees kwv yees rau hauv ob qhov xwm txheej hauv qab no: ib qho yog tias cov terminals ntawm CAN kab ntawm ob qhov kawg ntawm lub connector raug tshem tawm los yog poob, ua rau tsis ua hauj lwm ntawm kev sib txuas lus ntawm lub motherboard thiab lub charger, ua rau. nyob rau hauv tsis muaj peev xwm them; Lwm qhov yog tias qhov kev puas tsuaj rau cov ntawv pov hwm them nqi yuav ua rau lub voj voog them tsis ua haujlwm. , them tsis tau tiav. Yog tias lub tsheb tsis tuaj yeem raug them thaum lub sijhawm kuaj xyuas lub tsheb tiag tiag, koj tuaj yeem pib los ntawm cov hauv qab no los kho qhov txhaum:
(1) Lub charger thiab lub rooj tsav xwm tseem ceeb tsis sib txuas lus ib txwm: siv lub cuab yeej los nyeem cov ntaub ntawv ua haujlwm ntawm CAN system ntawm tag nrho lub tsheb. Yog tias tsis muaj lub charger lossis BMS cov ntaub ntawv ua haujlwm, tshawb xyuas CAN kev sib txuas xov hluav taws xob tam sim ntawd. Yog hais tias lub connector nyob rau hauv kev sib cuag tsis zoo los yog txoj kab raug cuam tshuam, ua tam sim ntawd. kho.
(2) Qhov txhaum ntawm lub charger lossis lub rooj tsavxwm tseem ceeb tsis tuaj yeem pib ib txwm: hloov lub charger lossis lub rooj tsavxwm loj, thiab tom qab ntawd rov ua qhov voltage. Yog tias nws tuaj yeem raug them tom qab kev hloov pauv, nws tuaj yeem txiav txim siab tias lub charger lossis lub rooj tsavxwm tseem ceeb yog qhov ua txhaum.
(3) BMS kuaj pom qhov txhaum thiab tsis tso cai them nyiaj: txiav txim rau hom kev ua txhaum los ntawm kev saib xyuas, thiab tom qab ntawd daws qhov txhaum kom txog thaum them nyiaj ua tiav.
(4) Lub charger fuse puas lawm thiab tsis tuaj yeem tsim hluav taws xob them hluav taws xob: siv lub ntsuas hluav taws xob los kuaj xyuas qhov txuas ntxiv ntawm lub fuse, thiab hloov tam sim yog tias nws tsis tuaj yeem qhib.
9. Cov zaub tsis zoo tam sim no
Lub davhlau ya nyob twg ntawm lub hwj chim roj teeb tswj qhov system tswj cov hlua khi yog poob los yog lub bolt yog xoob, thiab qhov chaw ntawm lub davhlau ya nyob twg los yog ntsia liaj qhov rooj yog oxidized, uas yuav ua rau tam sim no yuam kev. Thaum cov zaub tam sim no txawv txav, kev teeb tsa ntawm cov kab sau tam sim no yuav tsum tau kuaj xyuas tag nrho thiab nthuav dav.
(1) Cov kab ntawv sau tam sim no tsis raug txuas zoo: nyob rau lub sijhawm no, qhov zoo thiab qhov tsis zoo yuav raug thim rov qab, thiab kev hloov pauv tuaj yeem ua tiav;
(2) Kev sib txuas ntawm cov kab sau tam sim no tsis muaj kev ntseeg siab: ua ntej, xyuas kom meej tias lub high-voltage circuit muaj qhov ruaj khov tam sim no, thiab thaum saib xyuas tam sim no fluctuates zoo heev, xyuas cov kab sau tam sim no ntawm ob qhov kawg ntawm shunt, thiab nruj. cov bolts tam sim ntawd yog tias lawv pom tias xoob.
(3) Tshawb xyuas qhov oxidation ntawm lub davhlau ya nyob twg nto: Ua ntej, xyuas kom meej tias lub high-voltage Circuit Court muaj qhov ruaj khov tam sim no, thiab thaum lub ntsuas tam sim no qis dua qhov tseeb tam sim no, xyuas seb puas muaj oxide txheej ntawm qhov chaw. lub davhlau ya nyob twg lossis ntsia liaj qhov rooj, thiab kho qhov chaw yog tias muaj.
(4) Kev kuaj pom tsis zoo ntawm lub rooj tsavxwm high-voltage tam sim no: Tom qab tshem tawm qhov hloov pauv, yog tias qhov ntsuas tam sim no siab dua 0 lossis 2A, qhov ntsuas tam sim no ntawm lub rooj tsavxwm high-voltage yog qhov txawv txav, thiab lub rooj tsavxwm high-voltage yuav tsum tau hloov. .
10. High voltage interlock tsis ua hauj lwm
Thaum lub ON iav qhib, ntsuas seb puas muaj qhov hluav taws xob siab nyob ntawm no, xyuas seb 4 lub terminals puas tau ntsaws ruaj ruaj, thiab ntsuas seb puas muaj 12V voltage ntawm kev tsav tsheb kawg (cov xaim nyias yog qhov hluav taws xob tsav tsheb). Raws li qhov xwm txheej tshwj xeeb, nws tuaj yeem muab faib ua peb pawg hauv qab no:
(1) DC / DC txhaum: ntsuas qhov DC / DC high-voltage input cua ntsaws kom pom tias muaj qhov hluav taws xob luv luv thaum lub iav ON qhib, yog tias muaj, nws tau txiav txim siab ua DC / DC txhaum thiab yuav tsum tau hloov.
(2) Cov terminals ntawm DC / DC relay tsis txuas ruaj khov: xyuas qhov siab thiab qis voltage terminals ntawm relay, thiab rov ntsaws cov terminals yog tias lawv tsis ntseeg.
(3) Qhov tsis ua haujlwm ntawm lub rooj tsavxwm lossis lub rooj tsavxwm adapter ua rau DC / DC relay tsis kaw: ntsuas qhov hluav taws xob tsav kawg ntawm DC / DC relay, qhib lub ON thaiv thiab tsis muaj 12V voltage rau lub sijhawm luv, ces hloov lub main board los yog adapter board.
Post lub sij hawm: May-04-2022