Dɛn Ne Akyirikyiri Nhwehwɛmu?
Mekɔɔ saa adwuma yi mu wɔ afe 2016 mu bere a obiara anka akyirikyiri nhwehwɛmu a wɔde hwehwɛ battery ho asɛm ankasa. Ná yɛda so ara retwe pack ahorow afi bɔs ahorow mu na yɛde bench testers abɔ mu. Seesei mede me dapɛn no fã hwɛ dashboard ahorow so denneennen.
Remote diagnostics kyerɛ sɛ wubetumi ahu nea ɛrekɔ so wɔ battery pack mu a woremfa wo nsa nka. BMS no boaboa voltage ne temperature ano fi cell biara mu, ɛboaboa ano, de fa cellular so kɔ server bi so wɔ baabi. Ɛno ne nkyerɛase a ɛnyɛ den no.
Nkyerɛase a ɛyɛ den no hwehwɛ sɛ wogye akyinnye pii wɔ data a ɛho hia ankasa ho.
Mfitiasesɛm no
Cell biara a ɛwɔ pack mu no wɔ voltage. Wɔ 400V bɔs battery mu no ebia wobɛnya cells 96 a ɛtoatoa so. BMS no kenkan emu biara, mpɛn pii no wɔ sikɔne kakraa biara mu. Ɛsan nso kenkan ɔhyew a efi thermistor ahorow a apete module ahorow no ho no mu. Ebia sensor biako wɔ module biara mu, ebia ɛboro saa sɛ na pack designer no yɛ paranoid wɔ hot spots ho a.
Eyi nyinaa kɔ data stream bi mu. Asuten no nya compressed na wɔpia fi adi denam modem so. LTE yɛ adwuma yiye wɔ nkurow dodow no ara mu. Wɔ nnua no mu no ebia wubehia satellite nanso nokwarem no, po so ahyɛn adwumayɛfo dodow no ara gye data mu nsonsonoe no tom ara kwa bere a wɔn lɔre ahorow no bɔ nkuraase akwan no.
Receiving end no yɛ cloud service biara a OEM no de asi hɔ. Ebetumi ayɛ AWS, ebetumi ayɛ Azure, ebetumi ayɛ ade bi a ɛyɛ ne de a obiara mpɛ sɛ ɔhwɛ so. Data no si fam wɔ database bi mu na afei algorithms chew so.
Data Pipeline a Wɔde Di Dwuma
BMS Nneɛma a Wɔaboaboa Ano (V, T, I) .
Nhyɛso & Nsɛm a Wɔde Sie
LTE/Sat Nkrasɛm a Wɔde Kɔma
Cloud Ingestion & Nhwehwɛmu
Nea yɛhwehwɛ ankasa
Cell voltage spread ne nea ɛsen biara. Sɛ wowɔ nkwammoaa 96 a ɛsɛ sɛ wɔn nyinaa bɛn wɔn ho wɔn ho yiye bere a pack no regye n’ahome no. Ebia na ɛda ntam yɛ milivolt 10 anaa 15. Sɛ nkwammoaa biako fi ase kɔ fam bere a wɔde toto n’afipamfo ho a, saa nkwammoaa no sɛe ntɛmntɛm sen nea aka no. Ɛrekɔto wo pack capacity ano hye awiei koraa no.
Ahoɔhyeɛ
Ɔhyew yɛ anifere sen sɛnea nkurɔfo susuw. Ebia sensor bi bɛkenkan digrii 35 nanso nkwammoaa no ani ankasa a ɛwɔ akyirikyiri nsateakwaa abien no betumi ayɛ digrii 40 . Woreyɛ interpolate. Woreyɛ guessing. Algorithm no bu eyi ho akontaa nanso bere nyinaa na adwenem naayɛ wɔ hɔ.
Ɔsɔretia a Ɛwɔ Mu
Mfinimfini ahoɔden a ɛko tia ne sika kɔkɔɔ gyinapɛn a wɔde yɛ akwahosan nhwehwɛmu nanso dodow no ara a wɔyɛ BMS nhyehyɛe no nsusuw no yiye. Wohia current pulse a wɔahyɛ so ne voltage akenkan a ɛho tew. Ɛyɛ den sɛ wobɛyɛ bere a kar no rehuruhuruw wɔ ɔkwan kɛse no so no. Nhyehyɛe foforo no bi yɛ saa bere a wɔrebɔ charge bere a biribiara gyina hɔ pintinn no.
Ɔfã a obiara nka nkyerɛ wo
Kɔkɔbɔ ahorow a mihu no fã yɛ nwura. Sensor huammɔdi, nkitahodi a ɛnyɛ den, software a ɛyɛ mmerɛw wɔ BMS firmware no mu. Mfiridwumayɛfo bi de kar fi adi kɔhwɛ batere bi a nhyehyɛe no hyɛɛ no agyirae sɛ ɛho hia na onhu mfomso biara. Ná thermistor no wɔ solder joint a enye. Nnɔnhwerew abiɛsa a wɔsɛee no.
Remote diagnostics pa hwehwɛ sɛ wɔyɛ filtering. Ɛnyɛ data no a wobɛsesa kɛkɛ na mmom kɔkɔbɔ ahorow no a wobɛsesa. Ɛsɛ sɛ wo ne no di nkitaho wɔ nsɛnkyerɛnne ahorow pii mu ansa na woahaw obiara. Ɔhyew a ɛkɔ soro akenkan biako nkyerɛ hwee. Akenkan abiɛsa a ɛtoatoa so trending up bere a mprempren no sua na ambient yɛ normal, ɛno fata sɛ wofrɛ wɔ telefon so.
Me ne adwumakuw bi a wɔde kar fa nnipa yɛɛ adwuma wɔ Ohio bɛyɛ mfe abien. Na wɔwɔ bɔs ahorow a anyinam ahoɔden wom 40 na na wɔrenya kɔkɔbɔ ahorow 200 dapɛn biara bere a yefii ase no. Ná dodow no ara yɛ atoro a ɛkyerɛ sɛ wɔagye atom. Yɛ tuned thresholds, de bere bi-based logic kaa ho, maa ɛbaa fam koduu bɛyɛ 30 alerts dapɛn biara. Wɔn mu no, ebia na 20 yɛ nea wotumi yɛ ho biribi.
Sika ho asɛmmisa no
Fleet managers bisa ROI ho asɛm bere nyinaa. Mmuae a ɛyɛ nokware ni: egyina sɛnea wo mfiase no nye so.
- Sɛ woreyɛ nhwehwɛmu ɔsram biara dedaw na worekyere ɔhaw ahorow ntɛm a, ebia akyirikyiri nhwehwɛmu a wɔde hwehwɛ yare no bɛma woanya kwan ho huammɔdi kakraa bi afe biara. Ebia wɔremfa pɛnsere nkyerɛw ka a wɔbɔ wɔ nkrataahyɛ ho no.
- Sɛ woretu mmirika packs kosi sɛ ebewuwu na afei woayɛ ho biribi a, remote diagnostics betua ne ho ka ntɛmntɛm. Mahu sɛ po so ahyɛn kwati huammɔdi a ɛyɛ hu a anka ɛbɛkyerɛ lɔre a wɔtwe, odumgyafo adwumayɛbea frɛ, ne nneɛma a wɔde besi ananmu wɔ po so hyɛn a egye ntɛmpɛ mu. Ɔhyew adeyɛ biako a wɔkwati no tua ɔsram biara ka pii.
Sikakorabea a ɛyɛ den sɛ wobebu dodow ne warranty claims no. Sɛ wowɔ data a ɛkɔ so a wubetumi akyerɛ sɛnea wɔde pack no dii dwuma no pɛpɛɛpɛ. So adetɔfo no de dii dwuma ɔkwammɔne so de charge ntɛmntɛm wɔ wim tebea a ɛyɛ hyew mu? Data no kyerɛ sɛ ɛte saa. So nea ɔyɛɛ no no de nkwammoaa a asɛe dedaw no kɔe? Data no kyerɛ saa nso.
Baabi a eyi rekɔ
"Mfiri adesua nneɛma no yɛ overhyped wɔ m'adwene mu."
Electrochemical impedance spectroscopy kɔ so ba wɔ nhwehwɛmu nkrataa mu. Adwene no ne sɛ wɔde AC nsɛnkyerɛnne bɛhyɛ mu wɔ frequency ahorow mu na wɔasusuw mmuae no. Wubetumi ahu nneɛma te sɛ lithium plating ansa na ada adi wɔ voltage data mu. Nnwumakuw kakraa bi rebɔ mmɔden sɛ wɔbɛma eyi ayɛ adwuma nanso minhuu biribiara wɔ volume production mu de besi nnɛ.
Mfiri adesua nneɛma no yɛ overhyped wɔ m’adwene mu. Yiw wubetumi atete models wɔ abakɔsɛm mu huammɔdi data so. Nanso batere di huammɔ wɔ akwan foforo ne adebɔ so. Model bi a wɔatete no wɔ 2020 data so no betumi ayera huammɔdi akwan a ɛda adi wɔ 2024 nnuruyɛ mu. Woda so ara hia nnipa a wɔbɛhwɛ data no na wɔabisa nsɛm.
Nea mepɛ ankasa ne sensor ahorow a eye sen saa. Ma me susuw nhyɛso a ɛwɔ nkwammoaa no mu tẽẽ. Ma me gas sensor ahorow a ebetumi ahua electrolyte a ɛpaapae ntɛm. BMS data a yɛwɔ mprempren no te sɛ nea yɛrebɔ mmɔden sɛ yebehu ɔyarefo akwahosan denam ne hyew ne ne koma a ɛbɔ nkutoo a yɛbɛsusuw so. Mfaso wɔ so nanso enni mũ.
Afotu a mfaso wɔ so
Sɛ woreyɛ spec'ing battery system na supplier no de remote diagnostics ma sɛ option a, fa. Sɛ mpo wunnye nni sɛ wode bedi dwuma a. Sɛ wowɔ data no wɔ akyi a, ɛsom bo. Mmɔden a wɔbɔ sɛ wɔbɛsan ayɛ nea ɛtoo pack a adi nkogu a wonni telemetry no yɛ yaw.
Hwɛ hu sɛ wobɛte onii a ɔwɔ data no ase. Wɔn a wɔde nneɛma ma no binom de to wɔn asɛnka agua so na wogye sika sɛ wubenya w’ankasa wo nsɛm. Nya data export hokwan ahorow wɔ apam no mu.
Bisa cellular ho ka ho asɛm. Nhyehyɛe ahorow bi de data nhyehyɛe ahorow ka ho, ebinom nso nka ho. Mfiri ɔhaha kakraa bi a ɛde nsɛm mena bere nyinaa no ka bom.
Na budget ma obi hwɛ dashboards no ankasa. Diagnostics platform a ɛyɛ fɛ sen biara no so nni mfaso sɛ obiara ankɔ mu a.
