Niaj hnub no, kev lag luam tsheb tsis tu ncua nyob rau hauv kev coj noj coj ua ntawm ntau yam kev siv thev naus laus zis.Nrog rau kev nce qib zoo heev hauv kev pabcuam tsav tsheb siab tshaj (ADAS), infotainment systems, thiab kev tsav tsheb tsis siv neeg, kev xav tau bandwidth hauv cov tsheb niaj hnub kuj tseem nce ntxiv.Puas muaj peev xwm hloov pauv thiab cov thev naus laus zis tshiab tsim cov ntaub ntawv xav tau loj heev, thiab nws yog qhov yuav tsum tau ua cov ntaub ntawv tshiab.Yav dhau los, daim ntawv thov kev xav tau ntawm cov tsheb tsoos tau txwv rau chassis tswj tshuab lossis lub cev tswj lub cev, tsuas yog xav tau cov ntaub ntawv xa tawm muaj peev xwm ntawm ntau txhiab ntawm cov khoom ib ob (kbps).Niaj hnub no, cov tsheb ntse tau nruab nrog ntau lub sensors, high-end infotainment systems, thiab navigation tswj systems raws li kev txawj ntse (AI) thiab tshuab kawm (ML), thiab ntau LIDAR, RADAR, thiab lub koob yees duab modules tsim terabytes ntawm cov ntaub ntawv. , ua rau ib tug tseem ceeb nce nyob rau hauv complexity.Yog li ntawd, nws yog ib qho tseem ceeb rau leverage automotive Ethernet rau high-speed, txhim khu kev qha, thiab ultra-low-latency connectivity.
Cov kev cai tsim nyog rau automotive Ethernet cables (tsis muaj connectors).
OPEN Alliance cov lus qhia tshwj xeeb (TC2 100Mbps, TC9 1000Mbps) qhia meej meej txog cov kev cai rau tsheb Ethernet cables yam tsis muaj cov khoom txuas.Lub OPEN Alliance tau txhais cov kev cai yooj yim rau cov cables uas yuav tsum tau ua - qhov cuam tshuam rau kev ua tau zoo (tus nqi raws li cov hom phiaj sib txawv):
Impedance Z -> nominal 100Ohm rau ntau qhov sib txawv
Insertion poob IL - ib qho kev nkhaus zoo> qib sib txawv - nyob ntawm qhov zaus
Rov qab poob RL -> tus nqi yuav tsum nyob ntawm qhov zaus
Kev ntsuas kev ua tau zoo LCL1 thiab LCTL2—> tus nqi thiab kev tsim kab hluav taws xob nyob ntawm qhov yuav tsum tau muaj ntawm ntau zaus
Coupling attenuation-> tsuas yog siv rau cov cables thaiv
Kev Tiv Thaiv Kev Tiv Thaiv-> tsuas yog siv rau cov kab thaiv thaiv
Automotive Ethernet cable taub hau kev lag luam, LEONI Tuam Tshoj
LEONI tam sim no yog tus thawj coj hauv kev lag luam tsheb cable, feem ntau ntawm cov qauv cable tam sim no yog raws li nws cov txheej txheem tshwj xeeb, nws tau koom nrog OPEN, IEEE3 thiab SAE4 thiab lwm lub koom haum koom tes, thiab koom tes nrog cov tswv cuab koom tes los tsim 100Mbit / s thiab 1 Gbit / s automotive Ethernet cables.LEONI Dacar yog LEONI's automotive data cable hom, uas feem ntau suav nrog coaxial thiab multi-core cov ntaub ntawv cables, LEONI automotive Ethernet cable vim nws cov ntaub ntawv cov yam ntxwv yuav tsum tau suav nrog hauv Dacar series, LEONI Dacar series suav nrog cov ntaub ntawv sib txawv hauv lub tsheb, ntawm tam sim no LEONI Dacar 100 Gigabit thiab Gigabit Ethernet cov khoom tau nruab thiab siv tau zoo nyob rau hauv ntau cov qauv ntawm lub ntiaj teb no German, American, ywj siab hom thiab lwm yam OEMs.LEONI tsis tso tseg, Lenny tau cog lus tias yuav mus dhau tus qauv ntawd.LEONI's Dacar Ethernet cables txhais cov yam ntxwv kis tau tus mob xws li hom kev hloov pauv tsis xav tau rau cov cables uas tsis muaj kev tiv thaiv.Lub sheathed cable tsim kom ntseeg tau tias cov hlua khi tau teeb tsa nrog qhov cuam tshuam tsawg kawg hauv cov xwm txheej xws li kev laus, impurities thiab av noo.Rau EMC-rhiab heev installation, LEONI muab kev siv cov shielded LOONI Dacar Ethernet cables.Cov cables no twb tau tsim ntau thiab siv hauv lub koob yees duab panoramic.
Ethernet marketFuture market
Vim tias Ethernet tau tsim ntxov dhau lawm, kev xa cov ntaub ntawv ntawm lub sijhawm tiag tiag tsis tau txiav txim siab.Nrog rau ntau qhov kev lom zem suab thiab video nkag mus rau hauv lub cockpit, tus naj npawb ntawm ECUs thiab qhov kev thov rau kev suav lub zog ntawm ECUs tau pom tias muaj kev loj hlob tawg, uas yog qhov pom tseeb dua nyob rau hauv ADAS era thiab lub sijhawm tsis muaj neeg tsav tsheb yuav los tom ntej, thiab qhov kev thov rau kev suav bandwidth. kuj tau pib tawg.Qhov no tau ua rau muaj kev nce nqi ntawm cov khoom siv hluav taws xob hauv tsheb, ntawm ib sab, nce tus naj npawb thiab zoo ntawm ECU systems, vim hais tias ntawm kev faib xam, ib tug loj tus naj npawb ntawm cov kev pab cuam yog nkim, thiab peb tham txog lub tsheb. Ethernet siv ib khub ntawm unshielded cables thiab me me thiab ntau compact connectors, siv unshielded twisted khub yuav pab txhawb 15m kis tau tus mob nyob deb (rau shielded twisted khub yuav pab txhawb 40m), qhov optimization ua no automotive Ethernet yuav ua tau raws li lub tsheb EMC.Txo cov nqi sib txuas hauv tsheb nce mus txog 80% thiab txuas qhov hnyav hauv lub tsheb txog li 30%, PHY ntawm 100M Automotive Ethernet txais 1G Ethernet thev naus laus zis los ua kom muaj kev sib txuas lus ob txoj hauv kev ntawm ib khub los ntawm kev siv ncha tshem tawm.Pas PoE yog tsim los rau Ethernet nrog 4 khub ntawm cables, yog li PoDL tau tsim tshwj xeeb rau automotive Ethernet muab 12VDC lossis 5VDC muab hluav taws xob rau kev ua haujlwm ib txwm ntawm ECU ntawm chav tswj hluav taws xob ntawm ib khub ntawm cables.Tau kawg, qhov xav tau ntawm bandwidth kuj yog qhov tseem ceeb, thiab ntau lub sensors, tshwj xeeb tshaj yog lidar thiab lub koob yees duab siab, yuav tsum xa cov ntaub ntawv siv Ethernet.
Automotive Ethernet yog ib qho kev sib koom ua ke-rau-peer thev naus laus zis uas txhua qhov hluav taws xob txuas txuas ua ke.Ib qho kev hloov pauv tau muab tso rau hauv lub kaw lus uas pab tsim kev sib txuas lus ntawm ntau ECUs thiab kev khiav tsheb mus rau ntau yam hauv lub network.IEEE standardizes thev naus laus zis los ntawm 100BASE-T1 thiab 1000BASE-T1 automotive-proprietary Ethernet qauv.Ib qho txiaj ntsig tseem ceeb ntawm automotive Ethernet yog tias nws muaj txiaj ntsig zoo dua li lwm cov kev cai.Cov tiam dhau los xws li CAN tsuas yog muab 10Mb / s dhau los, thaum lub tsheb Ethernet tuaj yeem muab kev sib txuas lus yooj yim ntawm 100Mb / s txij thaum pib.Piv nrog rau cov kab hluav taws xob ib txwm siv, tsheb Ethernet siv ultra-lub teeb yuag thiab ua haujlwm zoo kom txuag tau qhov chaw, txo nqi, thiab txo qhov nyuaj.
Post lub sij hawm: Lub Xya hli ntuj-17-2023