Siab thiab qis kub txias txias rau Automotive Electric Tsav
1, Core positioning thiab lub luag hauj lwm
Core positioning: Lub "kub tswj chaw" rau hluav taws xob tsav thermal tswj, muab ntau yam kub ntawm * * -40℃~ 150℃* * thiab high-precision circulating txias / cua sov nruab nrab (dej txias / roj txias) rau hluav taws xob tsav systems.
lub luag haujlwm tseem ceeb
Cov xwm txheej hnyav heev: Rov tsim cov xwm txheej xws li huab cua txias (-40 degree), kub siab (140℃+), thiab hloov kub ceev kom paub tseeb tias qhov pib txias, ua kom siab siab - lub zog tso tawm, thermal degradation, thiab kev ua haujlwm kub ntawm hluav taws xob.
Kev ntsuas kub ntawm cov yam ntxwv: Ua cov kev ntsuam xyuas ntawm hluav taws xob tsav hluav taws xob ua kom sov dissipation efficiency, thermal inertia, ndlwg tsis kam siab poob, thiab kub uniformity los txhawb kev tsim thiab optimization ntawm thermal tswj systems.
Kev txheeb xyuas kev ntseeg tau: Txheeb xyuas qhov ua tau ntev ntawm cov khoom siv hluav taws xob, cov ntsaws ruaj ruaj, rwb thaiv tsev, thiab cov qauv los ntawm kev kub siab thiab qis qis, ntub dej kub, thiab thermal shock.
Kev ua tau zoo calibration: Ua kom pom kev ua haujlwm kub ntawm lub cev muaj zog / hluav taws xob tswj (lub cev muaj zog winding<150 ℃, IGBT<175 ℃), calibrate the thermal management control strategy.
2, Lub hauv paus ntsiab lus ua haujlwm thiab qhov system architecture
1. Cov hauv paus ntsiab lus
Txais yuav ib tug dual Circuit Court / stacked system nrog compressor tub yees, hluav taws xob cua sov coupling, thiab meej kub tswj:
Lub tub yees: Lub vortex / cascade compressor tsav cov kev xa khoom ntawm cov tub yees thiab ua kom cov cua sov hauv nruab nrab (ethylene glycol antifreeze / rwb thaiv tsev txias roj) los ntawm lub phaj kub exchanger.
Cov Cuab Yeej Cuab Yeej: Nruab nrog lub tshuab ua hluav taws xob ua kom sov ua kom sov siab ceev, ua ke nrog cov thermal inertia them algorithm, nws tuaj yeem ua tiav ceev hloov ntawm -40℃mus rau 150℃(txog li 23 feeb).
Kev tswj qhov kub thiab txias: Dual PID adaptive tswj + ntau- taw tes qhov kub thiab txias, ntsuas qhov tseeb ntawm * * ± 0.5 degree, ntws qhov tseeb ntawm ± 0.2L / min * *.
2. Hom architecture (tsim rau hluav taws xob tsav)
Nruab nrab Circuit Court
Dej txias hom: deionized dej + ethylene glycol, sib xws nrog lub cev muaj zog dej txias lub tes tsho, hluav taws xob tswj txias phaj, sib xws nrog 800V high voltage platform.
Roj txias hom: Cov roj tshwj xeeb rwb thaiv tsev txias (ATF), ncaj qha txau kom txias lub cev muaj zog winding / rotor, nrog kev ua kom sov siab dua thiab kev rwb thaiv tsev zoo dua.
Cov khoom tseem ceeb: compressor, condenser, evaporator, hluav taws xob rhaub, phaj kub exchanger, hloov pauv zaus twj tso kua mis, expansion tank, sensor pab pawg, xws li (RS485 / CAN kev sib txuas lus).
3, Cov xwm txheej ntawm daim ntawv thov nyob rau hauv kev sim tsav hluav taws xob
Kev ntsuas lub cev muaj zog
Tsis tshua muaj kub pib txias: Kev pov thawj ntawm lub cev muaj zog pib torque, efficiency, thiab rwb thaiv tsev kev ua tau zoo ntawm -30℃~ -40 degree.
Nruam lub zog siab: Ntsuam xyuas qhov thermal stability, demagnetization txaus ntshai, thiab kev tso tawm tas li ntawm lub cev muaj zog hauv qab 120℃+ kev ua haujlwm.
Thermal shock: thermal cycling ceev (xws li 140℃→ -40 degree), ntsuas qhov kev ntseeg ntawm cov ntaub ntawv thiab cov qauv.
Hluav taws xob tswj (inverter) kuaj
Cov yam ntxwv cua sov ntawm IGBT/SiC cov khoom siv: ntsuas kev hloov pauv, kev ua tau zoo, thiab kev ua neej nyob ntawm qhov sib txawv kub sib txawv.
High voltage rwb thaiv tsev: Txheeb xyuas qhov hluav taws xob rwb thaiv tsev tiv thaiv qhov hluav taws xob thiab kev sib tw khiav deb ntawm qhov kub thiab txias.
Hluav taws xob tsav sib dhos (peb hauv ib qho) thermal tswj kev sib txuam
Sib koom ua ke sim cov thermal kev sib cuam tshuam ntawm cov motors, hluav taws xob tswj, thiab reducers, optimize qhov layout ntawm cua txias circuits thiab txaus faib.
Pov tseg thaum tshav kub kub pov thawj: Simulate lub system efficiency ntawm cua sov lub roj teeb / tsev nrog khib nyiab cua sov los ntawm lub caij ntuj no lub cev muaj zog.
Joint debugging ntawm lub rooj ntev zaum thiab lub tsheb thermal tswj
Koom tes nrog lub tsheb thermal tswj qhov system (tswj lub twj tso kua mis, PTC, radiator) kom ntsuas qhov ntsuas kev tswj hwm thiab lub tswv yim.
4 Technical zoo thiab xaiv cov ntsiab lus
1. Core zoo
Dav kub ntau + siab precision: ua tau raws li qhov yuav tsum tau kuaj ntawm tag nrho lub neej ntawm hluav taws xob tsav.
Kev hloov pauv kub ceev: ua kom luv luv ntawm txoj kev loj hlob thiab txhim kho kev ntsuas kev ua haujlwm.
Tau tshaj ntau yam xov xwm: dej-cooling/roil cooling universal, haum rau txawv hluav taws xob tsav txias schemes.
Kev tswj kev txawj ntse: txhawb kev saib xyuas tej thaj chaw deb, sau cov ntaub ntawv, thiab kev ntsuas tsis siv neeg.
2. Xaiv tus yuam sij
Xaiv cov dej-cooled/roil cooled qauv raws li hom hluav taws xob tsav txias.
Sib phim tus nqi ntws thiab lub peev xwm txias / cua sov raws li lub zog tsav hluav taws xob.
Paub meej tias qhov kub thiab txias, qhov tseeb, thiab qhov ntsuas kub hloov pauv raws li cov qauv ntsuas.
Ua ntej siv cov tub yees cascade thiab thermal inertia cov kev daws teeb meem los txhim kho qhov sib sib zog nqus txias thiab muaj peev xwm hloov tau sai.
