Uburyo bwo gukoresha amabateri y'ibikoresho vy'inganda: Gugura n'ubuyobozi bw'ubuhinga 2026

Umugambi wa bateri usanzwe ntushobora kunanirwa kubera umuntu yahisemwo umuriro w’izina udakwiriye. Birananirwa kuko umuriro w’umuriro ni wo wonyene wari ukenewe wasobanuwe neza. Umuzigo w’isonga, umuriro wo gusubirana, ubushuhe bwo gushaja, ubutumwa bw’umugenzuzi, umuzigo wo gutera n’ibigeragezo vyo kwemera biguma ari ivyiyumviro gushika igishushanyo c’imbere kibishize ahabona, rimwe na rimwe inyuma y’aho ibikoresho bimaze kwemererwa.

Ku baguzi bagereranyauburyo bwo gukoresha amabateri y'ibikoresho vy'inganda, ikibazo c’ingirakamaro si nimba uwugurisha ashobora kwubaka bateri ku gishushanyo. Ni nimba uwo mucuruzi ashobora guhindura igikorwa c’imashini mu buryo bugenzurwa, akagaragaza ibintu bibuze imbere y’uko atanga amahera, akavyemeza iyo sisitemu n’umugenzuzi nyawe n’igikoresho co gucapura, maze agasubiramwo umugambi wemejwe mu guhingura.

Igikoresho gisanzwe kirabereye iyo ikibazo nyaco c’ibikoresho kidashobora gushitswako mu buryo bwizigirwa n’ibati ry’ibintu.Insozero irahinduka iyo ubudasa busabwa gusa ari ikimenyetso, uburebure bw’umurongo canke uburebure bw’umugozi; ayo mahinduka ashobora gusaba urubuga rusanzwe rwatunganijwe aho gukoresha urupapuro rusukuye-.

Mu bisanzwe dutandukanya imigambi mu nzego zitatu. Igikoresho gisanzwe ni co gihitamwo ciza iyo umuriro waco, umuriro, ibahasha, uburyo bwo gushaja n’ivyemezo bimaze guhura n’ibikoresho. Igikoresho gitunganijwe gihindura imirongo y’ubuhinga, imiterere y’itumanaho canke ubushobozi mu gihe kigumya ubuhinga bw’amashanyarazi bwemejwe. Uburyo bwo gukoresha amabateri y’ibikoresho vy’inganda busanzwe buba ngombwa igihe uruzitiro, uburyo bw’ububasha, ibidukikije vy’ubushuhe, ubuhinga bwa BMS canke inzira y’amategeko ari vyo bidasanzwe.

Icicaro cacu ni icari:"umugenzo" si inyishu y'imbere canke y'ubuhinga.Iyo urubuga rwemejwe rwuzuye imipaka nyayo, re-ubuhinga bwongera urutonde, guhindura-ubugenzuzi n'ingorane zo kwemeza ataco bukora.

Ingingo iba iy’ubudandaji gusa inyuma y’aho iyo nzitizi igeze. Abaguzi bakwiye kwandika urugero rw’urutonde rwarenze, ikigeragezo ikihe kizokwemeza umugambi mushasha be n’uko umubare w’ibintu utegekanijwe woba ushobora gutuma NRE n’ibikoresho bimera neza. Ahandiho, amajambo asubiwemwoamabateri y'ibikoresho vy'ingandaizotanga igiciro c’ivyiyumviro bitandukanye kandi ntibishobora kugereranywa.

Aninganda OEM bateri imitererevyotangura n’ivyo iyo mashini ikora uko igihe kigenda kirarenga. Inguvu z’umuriro n’amasaha amp-bidondora umuriro ubitswe, ariko ntibisobanura ubushobozi bw’umuzigo, igihe c’impumuro, ibihe vy’ubusa, ugutemba kw’umuriro kwemewe, amahirwe yo gushaja canke inguvu zigaruka mu guhagarika no kugabanya umuzigo.

Ku bijanye n’inguvu z’intango, ubucuti bumenyerewe buraguma ari ngirakamaro:

Ibara ry'amasoko ritegerezwa rero kwongerako ibihombo vy'uguhindura, idirisha rya SOC rikoreshwa, ugugabanya ubushuhe n'iherezo-ry'-intumbero y'ubuzima ryemejwe. Ubushakashatsi ku mirongo ya litiyumu y’ubuzima buramba-burerekana igituma ububasha bw’ingingo nshasha-budakwiye gufatwa nk’ingwati y’ubuzima bwose; igice gikenewe kivana n’ubuhinga bwa shimi, ubushuhe, idirisha rya SOC n’ingendo y’ibikorwa aho kuva ku ijanisha rimwe ry’isi yose (NREL).

Igihe c’isonga gikeneye insobanuro yaco bwite. "300 A peak" ntiyuzuye kiretse RFQ ivuga nimba iyo peak imara milisegonda 100, amasegonda 10 canke iminota ibiri, ni incuro zingahe isubiramwo n'umuriro w'iherezo umugenzuzi asaba mu gihe c'ico kintu. Ivyo ni ko biri no ku bijanye n’amashanyarazi asubirana.

SOC nini canke ubushuhe buke bw'ingingo burashobora kugabanya umuriro wemerewe, ariko umupaka utegerezwa kuva ku makuru y'ingingo yatowe, BMS ubu -ikarita y'umupaka n'umurongo w'umuriro/umugenzuzi. RFQ rero ikwiye gutanga umuriro mwinshi wo gusubirana n’igihe, SOC yo hejuru yo gukora, ubushuhe bwo gusubirana buke cane n’inyishu y’imashini iyo bateri itangaza umupaka wo hasi w’inguvu.

AGV ifise ubushobozi bwo gucapura kenshi, igikoresho co guterura mu kirere gifise isonga ry’amazi rigufi be n’igikoresho co gusukura ububiko bukonje-gifise ivyipfuzo vy’ugushusha vyose bishobora gukoresha inguvu zimwe z’umusi. Ubwubatsi bwabo bw'amabateri burashobora kuba butandukanye kuko igihe co guhanahana amakuru, umuriro w'impumuro n'ugusohoka kw'umuriro ukonnye-, si amasaha y'amp-, nivyo bigenzura igishushanyo. Uwugurisha arakeneye urutonde rw'umuzigo canke urutonde rw'ibintu bibi -imbere y'uko ivyo bikoresho bishobora gupimwa mu buryo bwizewe.

Aho urutonde/ubwubatsi buhuye bukeneye kubarwa inyuma y'aho urugendo rw'ibikorwa rumenyekanye, rufate nk'ibara ry'ubuhinga ritandukanye aho guhindura RFQ mu mwimenyerezo wo kubara utugingo ngengabuzima-.

Isubiramwo ry'ubuhinga ry'LiFePO4 bateri y'imashinivyohuza ingingo indwi.

Hitamwo LFP mbere igihe ubushobozi bwo guca mu nzira, ugushikama kw’ubushuhe, ukwihanganira uburemere bwinshi bw’amapaki n’ugushaja kw’inganda bishobora gutegekanirwa bihambaye kuruta umubare mutoyi. Hagarika gukoresha LFP igihe uburemere bw’ibintu canke ibahasha bibuza inguvu zikenewe, canke igihe igikorwa gisaba ubushobozi/ubushuhe akaranga urugingo rwa LFP rwashizwe ku rutonde rugufi rudashobora kwerekana. Iciyo gihe, n’ukore inyigisho y’ubudandaji bw’ubuhinga bwa shimi ukoresheje iyo nzira nyene y’umuzigo, urubibi rw’ubushuhe n’intumbero y’ubuzima; amazina y’ubuhinga bwa shimi yonyene ntafata ingingo y’ivyo bipaki.

 

Uburyo bw'utugingo ngengabuzima bukurikira ubuhinga n'ubuhinga bwo gukora. Utugingo ngengabuzima tw’imbere dushobora kugabanya igitigiri c’uguhuza mu ruzitiro rusanzwe; ingingo z’umubiri zishobora guhura n’umubare udasanzwe kandi zigatanga inzira z’ubushuhe mu buryo butandukanye. Nta n’imwe muri izo mvugo ari itegeko ryo guhitamwo. Basabe igiharuro c’amabisi, uburyo bwo gusuzuma hamwe, kwitandukanya n’abandi, ikarita y’ubushuhe n’umubare w’ibintu bishobora gukoreshwa, hanyuma uhitemwo ubwubatsi bushobora kugeragezwa no kugenzurwa.

 

Kugira ngo ubone ingingo ido n’ido y’ivy’ubuhinga bwa shimi, koreshaLiFePO4 bateri y'imashiniIngingo y'uguhitamwoinyuma y’aho imipaka y’ibikoresho imenyekanye.

Bateri, umugenzuzi n’umushaja bihuye gusa iyo imipaka yavyo y’umuyagankuba n’inyifato y’igihugu bihuye mu bihe bisanzwe no mu bihe vy’amakosa.Aha niho hari umuhinduzi amajambo menshi asiga ataco akora: umurongo uvuga ngo "CAN supported" ntusobanura ubutumwa bumwe bukoreshwa.

A Uburyo bwa bateri busanzwe bufise CAN bisi BMSbisaba inyandiko y'ibarabara igenzurwa. Ishobora gusobanura ID z’ubukemurampaka, urutonde rwa byte, gupima, igipimo co guhindura, ibiharuro, ibiharuro vy’igenzura, urutonde rwo gutangura, ubutunzi bw’itegeko n’inyifato y’igihe co guhera. SOC na SOH bitegerezwa gusobanurwamwo aho gushikirizwa gusa. OEM kandi irakeneye kumenya nimba imipaka y’amashanyarazi y’ugushaja n’ugusohoka idahinduka, ubushuhe-buvana canke bumenyeshwa mu buryo buhinduka.

Ivyago vyo gucapura imbere y’igihe bivana n’inguvu z’umuriro, ubushobozi bw’umugenzuzi DC{0}}, ubushobozi bwo guhangana, ubushobozi bw’umuriro w’umuriro n’igihe cemerewe co guhuza. Ntuvuge ko agaciro ka resistor rusangi gatuma iyo sisitemu itekanye. Kwemeza umuriro n'umuriro wa bisi-mu gihe c'uguhuza, gusobanura urugero rw'uguterimbere n'igihe co guhera, no kugerageza gufungura-resistor, gusudira-contact n'umuyagankuba-utari-ugutera amakosa n'umugenzuzi wipfuza.

Gusubirana bisaba urubibi rw’urutonde rumwe. Igikoresho cuzuye, gikanye canke gifise ikosa-gifise aho kigarukira gishobora gutanga raporo y'umuriro wemerewe uri hasi; iyo ivyo bituma DC-bus igira umuriro mwinshi bivana n'inyishu y'umugenzuzi wa moteri n'umuriro wose wo guhagarika canke inzira y'inguvu. DVT itegerezwa kugerageza SOC yo hejuru, ubushuhe bukeyi bwo gusubirana, gutakaza ivy’itumanaho n’ihinduka ry’intambwe mu gipimo c’umuriro-ubu.

Ivyemezo vy’agaciro vy’abaguzi si ifoto y’ubutumwa butagira ico bukora. Ni interface-inyandiko y'ubugenzuzi hamwe n'inyandiko z'igerageza z'umuzigo munini wa bisi, amafoto abuze canke yononekaye, amarushanwa yo gutangura n'ugukoresha amakuru ya kera-. Amasoko akwiye gusaba izo nyandiko imbere y’uko umugambi wemezwa no kugereranya ubugenzuzi bw’isubiramwo, gukingira amakosa n’ingingo ngenderwako zo guca mu bacuruzi.

Igitabo ca PolinoveliUbushobozi bwo guhindura bateri ya OEMgutanga inzira y’ubudandaji ibereye igihe umugambi ukeneye inyifato nshasha yo guhanahana amakuru, gukingira, gukingira canke gushaja; interface ya nyuma iracari itegerezwa kwemeranwa no kwemezwa ku mashini yihariye.

"IP67, –20℃gushika kuri 55℃kandi ishobora guhangana n'uguhungabana" ntabwo ari ikintu co kwemera. ABateri IP67 ikomeye y'ibikoresho vy'ingandaikeneye igihugu gisobanuwe, igihe co gushirwa ahabona, imiterere yo gutera n’ingingo ngenderwako zo guca/kunanirwa kuri buri kirego.

Ubushuhe butegerezwa gutandukanywa mu bice vyo gushaja, gusohora no kubika. Vuga nimba iyo paki itegerezwa gutanga umuzigo ubwo nyene inyuma yo gushaja, nimba ishobora kwishuha imbere y’uko ishaja, inguvu ziri ku gikoresho co gushaja n’imimerere y’ibimenyetso birekura gushaja. Ku rugero rushushe, sobanura ibisabwa ubu canke vyemewe gukuraho aho gusaba gusa "ugukora."

Ingress ratings ntizishinga intahe ko umuntu ashobora guhangana n’amazi, umunyu, amazi y’amazi, ifumbire, imiti yo gusukura canke gusukura n’umuvuduko. Amamashini y’ubucukuzi, ivy’ivyambu, ivy’uburimyi n’ivy’ibifungurwa-ashobora gusangira IP rating mu gihe akeneye ibipfukisho bitandukanye, ibipfukisho, ibipfukisho n’ibipfukisho vy’ibifatanya. Ico cerekezo c’igerageza gikwiye gusubiramwo uburyo nyabwo bwo guhumanya n’ugusukura aho ivyo bimenyetso bigira ico bikoze ku ruzitiro.

Ivyemezo vy'ubuhinga bikwiye gukoresha uburemere, uburyo, ibikoresho n'ibikoresho-vyihariye canke bikoreshwa. Ibara ry'umuhanda ry'ibara ry'umuhanda -n'ibara ry'umuhanda ryoroshe ry'ibara ry'umuhondo ryishura ibibazo bitandukanye; OEM canke iherezo-ibikoresho bikoreshwa bitegerezwa gutanga urutonde rukenewe. Ukwonona kw’ibikoresho ni ikintu cemewe gituma bateri idakora neza, ariko ubuyobozi rusangi bw’umutekano bwa OSHA ntibusubirira ubusobanuro bw’ugunyiganyiga kw’ibikoresho (OSHA).

UN 38.3 ni uburenganzira bwo gutwara abantu, si itangazo ryuzuye ry’uko bateri y’inganda itekanye ku gukoresha kwose. Itandukaniro rirahambaye kubera ko abaguzi kenshi bavumbura ingingo ngenderwako y’ugukoresha ibuze inyuma y’aho uruzitiro, uruzitiro na BMS bimaze gukonja.

Kuberauburyo bwo gukoresha amabateri y'ibikoresho vy'inganda, ugutegura ivyemezo bitegerezwa gutangura imbere y’uko umugambi uhagarara kubera ko urugingo, ibikorwa vyo kurinda BMS, uruzitiro n’ibihimba bigenzurwa bisobanura ibimenyamenya vy’igerageza biguma bikoreshwa inyuma y’ihinduka.

Ikarata y’icemezo ikwiye kuba ifise ibice bitatu. Ubwambere, ibisabwa mu gutwara abantu nivyo bigena igerageza, inyandiko, gupfunyika n'ubuvuzi bwo kurungika. Igitabo c’Ishirahamwe mpuzamakungu ONU kivuga ibijanye n’ibipimo n’ingingo ngenderwako gishira ibipimo vy’ugutwara amabati n’amabateri mu gice ca 38.3, kandi incamake y’ibipimo ikwiye guhura n’umugambi watanzwe aho guhura n’umuryango w’ibintu bifitaniye isano ridatomoye (UNECE).

Ubwa kabiri, umutekano w'urugero rwa bateri{0}}n'ingingo ngenderwako z'ubushobozi bivana n'ikoreshwa. IEC 62619:2022 ivuga ku bikorwa vy’ubuhinga bwa litiyumu n’amabateri akoreshwa mu bikorwa vy’inganda, harimwo n’ibikorwa vy’intumbero nk’ibikoresho vy’ugutwara ibintu n’ibikoresho vy’ubuhinga bwa none hamwe n’ibikorwa bihagaze. Iherezo ryihariye-ikoreshwa ry'itegeko rifata imbere aho bishoboka (IEC).

Ica gatatu, imashini irangije n’isoko ry’aho ija rishobora gutegeka ibindi bisabwa vy’amashanyarazi, ibikorwa-umutekano, EMC, imodoka, imashini canke ahantu h’akazi. "CE yubahiriza" si umugambi w'ikigeragezo. OEM n’umuguzi bakwiye kwemeranya ku mabwirizwa n’ingingo mfatirwako zikoreshwa, uwujejwe ikigeragezo cose, ubwinshi bw’ivyerekanwa, uburenganzira bw’inyandiko n’ingaruka z’ihinduka ry’umugambi.

Ico kigereranyo c’icemezo gikwiye kandi kugaragaza igiciro no gusubira kugerageza ubutunzi: ni uruhe ruhande ruhitamwo laboratwari, rutanga ivyerekanwa, rufise raporo kandi rwishura igihe OEM canke uwutanga ahinduye igice kigenzurwa. Ivyo ni ibisabwa mu gutanga amasoko, si igisabwa rusangi c'"ivyemezo vyose."

Uwukora amabateri y’ibikoresho vy’inganda akwiye gutanga ibimenyamenya ku rembo ryose ry’umugambi, atari icemeza kimwe ku mpera.Ukuroranirwa kw’akarorero kwemeza iciyumviro catowe; ntivyemeza ko gukoresha ibikoresho vyo gukora, gukingira, gusudira, gushiramwo porogarama n’ugusuzuma bishobora kubisubiramwo.
 

Baza ivyerekanwa ari ivy'ubuhinga, ivyemezo canke ivy'uguhingura-ibice vy'intumbero. Amapaki yubatswe n'amaboko ashobora kuba akwiriye mu kugerageza ibimenyamenya vy'ingorane nyinshi -mu gihe ukoresha ibikoresho bitandukanye, gukingira canke gukoresha inzira y'ibikoresho biva ku guhingura ibintu vyinshi. PVT ikwiye gufunga ico kinogo n’amabwirizwa y’akazi agenzurwa, gukurikirana n’amadosiye ya EOL afitaniye isano n’inomero z’urutonde.

Guhitamwo abaguzi bikwiye gupima cane ibimenyamenya vy’ubuhinga n’ivyemezo kuruta ubwaguke bw’urutonde. Nk'umuntuakarorero k'uburemere bw'isuzuma ry'isoko ry'inganda OEM, gutangura n’ubuhinga 30%, kwemeza/kwubahiriza 25%, uburyo bwo gukora 20%, ugucungera uruhererekane rw’ugutanga-15% n’ugufasha ubuzima 10%. Ivyo bipimo si imibare y’ibikorwa canke uburyo bwa Polinovel bwo kw’isi yose.

Kuduza uburemere bw'ukubahiriza igihe kwinjira mw'isoko canke umutekano-iherezo ry'ingenzi-ibikoresho vy'ubugenzuzi bitangura. Kuduza uburemere bw'uruzitiro rw'ugutanga-igihe igice canke igice c'umuyagankuba catowe gifise ingorane zo gutanga igihe kirekire, canke igihe ugutanga ibikorwa bitegerezwa kubandanya imyaka myinshi. Ku kigereranyo c'ijwi rito -, inyishu y'ubuhinga ishobora kuganza; imbere y’uko igihembo c’uguhingura gihabwa, ukugenzura ibikorwa n’ugukurikirana bikwiye gutwara uburemere bwinshi.

Ubwiza bwa raporo y'amanota, ubutunzi, igenzura ry'isubiramwo n'ibimenyamenya bivuye mu nzira igereranywa. Uwugurisha adashobora kumenya inyandiko igenzurwa, isubiramwo ry’ikigeragezo canke nyen’ivyo bikoresho ntashobora kuronka inguzanyo yuzuye.

Hari ikibazo kimwe kigaragaza ibirenze ivyerekanwa vy’uruganda vyiza:"Twereke ihinduka ry'umugambi wanse, kandi usigurire impamvu."

Inyishu irakenewe gusa iyo uwugurisha ashobora kwerekana ihinduka ryasabwe, ingorane zabonetse, nyir’ingingo, ubundi buryo bushikirijwe n’ingaruka zo gusubira kwemeza. Ukwanka wizigiye ata nkuru igenzurwa, n’ubu ni iciyumviro.

Izo ni inzira z’ingero z’ukunanirwa kw’ubuhinga, si inyigisho z’abaguzi.

Gusubiramwo-gufunga.Igikapu gishobora guca mu kigeragezo c'ubushobozi bw'ubushuhe mu cumba-ariko kigafungura amakontakteri yaco mu gihe c'isonga ry'uguterura canke ry'ugukwega iyo urutonde rw'igihe nyaco rw'ubu -rurengeye igihe ca BMS canke umupaka w'ubushuhe. Gusubiramwo urutonde rwagereranywa, kwandika umuriro w'umugwi-, umuriro w'amapaki, ubushuhe n'uburinzi, hanyuma wongere ugerageze umaze guhindura ubwubatsi canke umupaka wagereranywa.

Heater iriho, chargement y’ubukonje iracari ibujijwe.Igikoresho co gushushanya ntigituma ipaki ikonje-iteguye kiretse iyo igishushanyo gisobanura amasezerano y'ibimenyetso, inguvu z'igikoresho co gushushanya, kurekura-ku -ubushuhe bwo gushaja, igihe co gushaja n'inyifato y'ugushaja. Kwemeza urutonde rw'ubukonje bwose-soak-ku-charge, harimwo n'igikoresho cananiwe n'ingendo y'ubushuhe yacitse.

Ivy’uguhanahana amakuru bica mu gihe ataco bikora, bikananirwa kw’imashini.IDs zibiri, guhagarika nabi, checksum ukudahuza canke amakuru ashaje bishobora gutuma habaho amakosa y’imashini mu gihe amashanyarazi y’ingingo aguma ari asanzwe. Ikosa-injection n'igerageza ry'umuzigo munini-bus-bikwiye kugenzura inyishu y'ibikoresho ku butumwa bwose bunaniwe.

Ivyitegererezo birarenga, ivy’uguhingura biragenda.Ibindi bice, gukoresha inzira y’ibikoresho, gukoresha ivyuma bifatanya, gusubira gukora no gushiramwo porogarama zishobora guhindura umugwi w’ibintu ataco bihinduye ku bijanye n’ugurisha. Igishushanyo c'inzahabu, BOM igenzurwa, PCN, imipaka ya EOL n'inyandiko z'imibare y'urutonde-ni ibimenyamenya vy'ugusohora rero, si ivy'inyongera vy'ubutegetsi.

Imbonerahamwe ikurikira ifata ivyinjijwe bikeyi kuUwugurisha amabateri y'ingandakugira ngo bamenye ibitari vyo mu vy’ubuhinga no mu vy’ubudandaji. Koresha inyandiko ya RFQ igenzurwa izigama ibice, ibisubirwamwo, ba nyen’ivyo n’ivyiyumviro bitaratowe umuti.

Nimba iyi mbonerahamwe yerekana ibintu vyinshi bitazwi, hagarika ukugereranya abaguzi maze ubanze upime imashini.

Igiciro gikwiye kugarura vyinshi kuruta igiciro n’igihe co gutanga. Gusaba urutonde rw’ivyiyumviro/ibihengeri, ubuyobozi bw’ubwubatsi bw’intango, ingorane zikomeye zo kwemeza n’ibibazo vy’icemezo vyuguruye. Iyo umuguzi adashobora gusubiramwo kubera ko urutonde rw’umuzigo, igishushanyo canke insobanuro y’ibarabara bibura, urwo rutonde rw’ibihengeri ni umusaruro w’ingirakamaro w’ubuhinga, si ugukorana kw’ugucuruza kwananiwe.

Igisubizo c’ingirakamaro kuruta ibindi vyose c’ikiganiro c’abaguzi ba mbere si igiciro. Kuberaumuhinguzi w'amabateri y'ibikoresho vy'inganda, ni urutonde rw’ibisabwa bigenzurwa, ivyiyumviro bitomoye n’umugambi wo kugerageza ingorane zishobora guhindura ubwubatsi, icemezo canke gusohora ibikorwa.

Igitabo ca PolinoveliIbisubizo vy'ibikoresho vy'ingandagutanga aho ubucuruzi buja ku migambi ikeneye urubuga rusanzwe, rwatunganijwe canke rwuzuye. Utange ivyiyumviro vya RFQ biri hejuru, cane cane urutonde rw’umuzigo, igihe c’isonga, ugusubirana, idirisha ryo gushaja, ubushuhe, ibishushanyo n’inyandiko y’ibarabara, kugira ngo bisubirwemwo mu vy’ubuhinga.

Iryo suzuma rikwiye kugarura ibintu bine vy'ukuri: urutonde rw'ivyiyumviro n'amakuru abuze-, ubuyobozi bw'intango bw'ubwubatsi, ingorane zikomeye zo kwemeza, n'ibibazo vy'icemezo bitegerezwa gutorwa imbere y'uko umugambi uhagarara. Ico gisubizo kireka amasoko agereranya ivyifuzo ku rufatiro rumwe kandi kikabuza ko RFQ idatunganye iba iciyumviro c’uguhingura gizimvye.