Why is the speed of the motor getting higher and higher driven by cost?

mawu oyamba

Pa "2023 Dongfeng Motor Brand Spring Conference" pa Epulo 10, mtundu wamagetsi watsopano wa Mach E unatulutsidwa. E imayimira magetsi, kuyendetsa bwino kwambiri, kupulumutsa mphamvu komanso kuteteza chilengedwe.Mach E amapangidwa makamaka ndi nsanja zazikulu zitatu zopangira: kuyendetsa magetsi, batire ndi zowonjezera mphamvu.

Mwa iwo, gawo la Mach electric drive lili ndi izi:

Njinga ndi mpweya CHIKWANGWANI TACHIMATA luso rotor, liwiro akhoza kufika 30,000 rpm;
kuziziritsa mafuta;
Lathyathyathya waya stator ndi 1 kagawo ndi 8 mawaya;
Wolamulira wodzipangira yekha wa SiC;
Kuchita bwino kwambiri kwadongosolo kumatha kufika 94.5%.

Poyerekeza ndi matekinoloje ena,rotor yokhala ndi kaboni fiber ndi liwiro lalikulu la 30,000 rpm zakhala zowoneka bwino kwambiri pagalimoto yamagetsi iyi.

Mach E 30000rpm pagalimoto yamagetsi

High RPM ndi Mtengo Wotsika Intrinsically Linkke

Liwiro lalikulu la injini yamagetsi yatsopano yakwera kuchokera pa 10,000rpm yoyambira mpaka 15,000-18,000rpm yomwe nthawi zambiri imatchuka.Posachedwapa, makampani ayambitsa makina oyendetsa magetsi opitilira 20,000rpm, ndiye chifukwa chiyani liwiro la injini zamphamvu zatsopano likukulirakulira?

Inde, zotsatira zoyendetsedwa ndi mtengo!

Zotsatirazi ndikuwunika kwa ubale wapakati pa liwiro la mota ndi mtengo wagalimoto pamilingo yaukadaulo ndi kayesedwe.

Dongosolo latsopano lamphamvu lamagetsi lamagetsi nthawi zambiri limaphatikizapo magawo atatu, mota, chowongolera ma mota ndi gearbox.Wowongolera mota ndiye kumapeto kwa mphamvu yamagetsi, bokosi la giya ndiye kutha kwa mphamvu zamakina, ndipo mota ndiye gawo losinthira mphamvu yamagetsi ndi mphamvu zamakina.Njira yake yogwirira ntchito ndikuti wowongolera amalowetsa mphamvu yamagetsi (voltage * yapano) mu mota.Kupyolera mu kuyanjana kwa mphamvu yamagetsi ndi mphamvu ya maginito mkati mwa galimotoyo, imatulutsa mphamvu zamakina (liwiro * torque) ku gearbox.Bokosi la giya limayendetsa galimotoyo posintha liwiro ndi torque yomwe imatuluka ndi mota kudzera pakuchepetsa magiya.

Powunika mawonekedwe a torque ya mota, zitha kuwoneka kuti torque ya T2 yotulutsa ma motor imalumikizidwa bwino ndi kuchuluka kwa mota.

N ndi chiwerengero cha kutembenuka kwa stator, ine ndikulowetsa panopa kwa stator, B ndi kachulukidwe ka mpweya, R ndi radius ya rotor core, ndi L ndi kutalika kwa core motor.

Pankhani yowonetsetsa kuchuluka kwa matembenuzidwe agalimoto, kulowetsa kwaposachedwa kwa wowongolera, komanso kuchulukitsitsa kwa mpweya wamagetsi, ngati kufunikira kwa torque T2 yagalimoto kuchepetsedwa, kutalika kapena m'mimba mwake. chitsulo pakati akhoza kuchepetsedwa.

Kusintha kwa kutalika kwa chiwongolero cha galimoto sikumaphatikizapo kusintha kwa stamping kufa kwa stator ndi rotor, ndipo kusintha kumakhala kosavuta, kotero ntchito yachizolowezi ndiyo kudziwa kukula kwa pachimake ndi kuchepetsa kutalika kwa pachimake. .

Pamene kutalika kwa chitsulo chachitsulo kumachepa, kuchuluka kwa zipangizo zamagetsi (chitsulo chachitsulo, maginito, maginito a injini) chimachepa.Zinthu zamagetsi zamagetsi zimatengera gawo lalikulu la mtengo wagalimoto, zomwe zimawerengera pafupifupi 72%.Ngati torque ikhoza kuchepetsedwa, mtengo wagalimoto udzachepetsedwa kwambiri.

Kukonzekera kwa mtengo wa injini

Chifukwa magalimoto amagetsi atsopano amakhala ndi chiwongolero chokhazikika cha ma wheel end torque, ngati torque yagalimoto ichepetsedwa, liwiro la bokosi la gear liyenera kukulitsidwa kuti kuwonetsetsa kuti ma wheel end torque yagalimoto.

n1=n2/r

T1=T2×r

n1 ndiye kuthamanga kwa gudumu, n2 ndi liwiro la mota, T1 ndiye torque yama gudumu, T2 ndiye torque yagalimoto, r ndi chiŵerengero chochepetsera.

Ndipo chifukwa magalimoto mphamvu zatsopano akadali chofunika liwiro pazipita, liwiro pazipita galimoto adzachepa pambuyo chiŵerengero cha liwiro la gearbox wawonjezeka, zomwe n'zosavomerezeka, choncho amafuna kuti liwiro galimoto liwonjezeke.

Powombetsa mkota,injini ikachepetsa torque ndikuthamanga, ndi liwiro loyenera, imatha kuchepetsa mtengo wagalimoto ndikuwonetsetsa kufunikira kwa mphamvu yagalimoto.

Chikoka cha de-torsion liwiro-pazinthu zina01Pambuyo pochepetsa torque ndikufulumizitsa, kutalika kwapakati pamoto kumachepa, kodi zimakhudza mphamvu? Tiyeni tione njira ya mphamvu.

U ndiye voteji ya gawo, ine ndiye stator input current, cos∅ ndiye mphamvu yamagetsi, ndipo η ndiye mphamvu.

Zitha kuwoneka kuchokera ku ndondomekoyi kuti palibe magawo okhudzana ndi kukula kwa galimoto mu njira ya mphamvu yotulutsa mphamvu, kotero kusintha kwa kutalika kwa chiwombankhanga kumakhala ndi zotsatira zochepa pa mphamvu.

Zotsatirazi ndi zotsatira zofananira za mawonekedwe akunja agalimoto inayake. Poyerekeza ndi mawonekedwe akunja, kutalika kwa pachimake chitsulo kumachepetsedwa, ma torque agalimoto amakhala ang'onoang'ono, koma mphamvu yotulutsa mphamvu sizisintha kwambiri, zomwe zimatsimikiziranso zomwe zanenedwa pamwambapa.

Kufananiza ma curve akunja amphamvu yamagetsi ndi torque yokhala ndi utali wosiyanasiyana wachitsulo

02Kuwonjezeka kwa liwiro la injini kumayika patsogolo zofunikira pakusankhidwa kwa ma bere, ndipo ma mayendedwe othamanga kwambiri amafunikira kuti zitsimikizire moyo wogwirira ntchito wa mayendedwe.

03Ma motors othamanga kwambiri ndi oyenera kuziziritsa mafuta, omwe amatha kuchotsa vuto la kusankha chisindikizo chamafuta ndikuwonetsetsa kuti kutentha kwachepa.

04Chifukwa cha liwiro lalikulu la injiniyo, imatha kuganiziridwa kuti imagwiritsa ntchito waya wozungulira m'malo mwa waya wathyathyathya kuti muchepetse kutayika kwa AC kwa mafunde pa liwiro lalikulu.

05Pamene chiwerengero cha mizati ya galimoto yakhazikitsidwa, maulendo oyendetsa galimoto amawonjezeka chifukwa cha kuwonjezeka kwa liwiro. Kuti muchepetse ma harmonics apano, ndikofunikira kuwonjezera kusinthasintha kwa module yamagetsi. Chifukwa chake, wowongolera wa SiC wokhala ndi ma frequency osinthika kwambiri ndi mnzake wabwino wama mota othamanga kwambiri.

06Kuti muchepetse kutayika kwachitsulo pa liwiro lalikulu, ndikofunikira kuganizira kusankha kwa kutayika kochepa komanso zida zamphamvu za ferromagnetic.

07Onetsetsani kuti rotor silingawonongeke chifukwa chothamanga kwambiri pa 1.2 nthawi yothamanga kwambiri, monga kukhathamiritsa kwa mlatho wodzipatula wa maginito, zokutira za carbon fiber, etc.

Chithunzi choluka cha Carbon fiber

Fotokozerani mwachidule

Kuwonjezeka kwa liwiro lagalimoto kumatha kupulumutsa mtengo wagalimoto, koma kuchuluka kwa mtengo wazinthu zina kumafunikanso kuganiziridwa moyenera.Ma motors othamanga kwambiri adzakhala njira yoyendetsera makina oyendetsa magetsi. Iyi si njira yokhayo yopulumutsira ndalama, komanso chiwonetsero cha luso la bizinesi.Kupanga ndi kupanga ma motors othamanga kwambiri kumakhala kovuta kwambiri. Kuwonjezera pa kugwiritsa ntchito zipangizo zatsopano ndi njira zatsopano, zimafunanso mzimu wopambana wa akatswiri amagetsi.

Nthawi yotumiza: Apr-19-2023

Chifukwa chiyani liwiro la mota likukwera ndikukwera motsogozedwa ndi mtengo?