Dɛn ne breki a ɛma nneɛma san yɛ foforo wɔ lithium batere mu?

Asram abien a edi kan a mekaa EV no na mekɔɔ so hwirew m’anim bere biara a mɛma accelerator no so. Ná ɛte sɛ nea woregyae nhoma bi a wɔde kyerɛw nhoma. Egyee bere kakra ansa na meresan atete me nan nifa. Seesei sɛ meka gas kar a wɔagye a mpoano no te nka sɛ ɛnteɛ, te sɛ nea breki no abubu.

Regen ne motor a ɛretu mmirika akɔ akyi. Sɛ wobɔ ntɛmntɛm a, motor no twe current fi pack no mu na ɛkyinkyin ntwahonan no. Sɛ wobrɛ wo ho ase a, ntwahonan no twitwiw motor no mmom. Motor bɛyɛ generator a ɛma ahoɔden. Current san kɔ battery no mu. Ɛnyɛ nea ɛyɛ den.

Marketing departments ani gye ho sɛ wɔbɛtow bɛyɛ 30% efficiency gain. Wiase ankasa yɛ basabasa sen saa. Me data-logged me Model 3 asram asia a mede kɔ adwuma wɔ Atlanta. Ɔkwan kɛse ne mmɔnten a ɛwɔ soro a adi afra, kar akwan a ɛkɔ fam. Regen nyaa ahoɔden a mede hyɛɛ mu no bɛyɛ 18% Ɛnyɛ 30.

Kurow mu karka yɛ yiye sen saa. Gyina na kɔ kyerɛ sɛ breki ho nsɛm pii besisi. Buddy bi a ɔde nneɛma kɔma Amazon wɔ Rivian van mu no hu 25% anaa nea ɛboro saa. Ɔregyae bere nyinaa. Highway cruising at 70 mph wo ɛkame ayɛ sɛ wo nsa nka breki no. Ɛkame ayɛ sɛ Regen nyɛ hwee mma wo wɔ hɔ.

Dodow 30% no fi sɔhwɛ kyinhyia ahorow a eye mu. Mpɛn pii gyina fi 60 mph ne maximum regen. Obiara nka kar saa.

Bepɔw so karka yɛ nea ɛyɛ soronko. Bere a meresiane afi Asheville wɔ afe a etwaam no osutɔbere mu no mehwɛe sɛ battery no foro fii 54% kɔɔ 71% wɔ bɛyɛ akwansin 40 a ɛsiane no so. Ɛno yɛɛ te sɛ ahoɔden a wontua hwee. Nokwarem no, mehyew no bere a na ɛrekɔ soro no.

Regenerative Braking

Eyi ne ɔfã a obiara nkyerɛkyerɛ mu yiye ansa na woatɔ EV.

Lithium nkwammoaa mpɛ sɛ wobegye charge bere a awɔw wom no. Ion no kɔ brɛoo dodo. Force current kɔ cold cell mu na wunya lithium plating wɔ anode no so. Ɔsɛe a ɛtra hɔ daa. Enti BMS no twa regen bere a pack no yɛ nwini no.

Awɔw yɛ dɛn dɛn? Ɛsono sɛnea nea ɔyɛe no te. Me kar no titiriw kum regen wɔ 20℃F. Wɔ 20 ne 45℃F ntam no ɛso atew, ebia ahoɔden fã. Ɛte sɛ nea breki no gyaee adwumayɛ bere a edi kan a wunyae no. Womia pedal no so hwɛ kwan sɛ kar no bɛkɔ fam denneennen na kar no abɔ kɛkɛ. Friction brakes no kyere wo nanso adwene mu gap bi wɔ hɔ.

Tesla de preconditioning feature bi kaa ho a sɛ wode navigation si Supercharger so a, ɛma battery no yɛ hyew. Ɛyɛ adwuma kɛse ma DC ntɛmntɛm charging. Ɛnyɛ hwee mma wo anɔpa commute regen efisɛ pack no da so ara yɛ nwini bere a worekɔ no. Nnwumawuranom binom de afiri a ɛma ɔhyew a ɛwɔ dan no mu no di dwuma simma 20 ansa na wɔafi hɔ sɛnea ɛbɛyɛ a batere no bɛyɛ hyew kɛkɛ. Ɔsɛe ahoɔden de sie ahoɔden so. Ɛnyɛ bere nyinaa na akontaabu no yɛ adwuma.

Ɛte sɛ nea Hyundai ne Kia na wɔasusuw eyi ho yiye. Ioniq 5 no de battery heating di dwuma denneennen. Owuranom a wɔwɔ Minnesota bɔ amanneɛ sɛ regen a wotumi de di dwuma no kɔ fam kodu temps a ɛba fam sen Tesla so. Ebetumi ayɛ chemistry nsonsonoe, ebetumi ayɛ software tuning. Kia renka sɛ.

Charge to 100% na fa kar kɔ fam. Ɛhe na regen ahoɔden no kɔ?

Baabiara nni hɔ. BMS no siw ano. Battery ayɛ ma. Lithium nkwammoaa a ɛyɛ ma ntumi nnye charge pii ntom a ɛnsɛee. Enti kar no tow adesoa a ɛboro so no gu friction breki no so. Anaasɛ wɔ kar ahorow bi mu no ɛnam resistor so trɛw sɛ ɔhyew. Ɔkwan biara so no, wohwere ahoɔden no.

Misuaa eyi wɔ ɔkwan a ɛyɛ den so bere a mifii baabi a wɔde ski tu mmirika no. Charged to 100% anadwo a edi kan no na ama maximize range. Ɔde n’ani kyerɛɛ fam 7% grade maa akwansin 12. Ná Regen titiriw nni ɔkwan a wɔfa so si fam no nyinaa so. Metraa friction breki no so denneennen sen sɛnea na mepɛ. Pad ahorow no yɛɛ hyew araa ma ɛyɛɛ hua.

Fi ase wo mmepɔw so akwantu ahorow no wɔ 80% anaa nea ennu saa sɛ ɛkɔ fam kɛse wɔ mfiase no a. Nnipa a wohuu eyi bere a wɔnoaa wɔn breki akyi no ahyɛ nhyiam ahorow no ma.

Kar foforo bi yɛ anifere wɔ eyi ho. Lucid Air no bɛkura charge ase 100% ankasa sɛ ɛnim fi navigation mu sɛ siane tenten bi reba a. Ɛsɛ sɛ ɛyɛ standard wɔ EV biara so. Ɛnyɛ saa.

Regenerative Braking

Mmuae tiawa, ebia ɛnyɛ saa.

Charge pulses a efi regen no yɛ tiawa. Sekan fã kosi ebia sikani du. Afei ɔkwan bi a ɛda ntam. Afei pulse foforo. Saa on-off nhyehyɛe yi yɛ soronko wɔ plug a wɔde hyɛ charger mu na wopia current a ɛkɔ so daa dɔnhwerew biako.

Nhwehwɛmufoɔ binom a wɔwɔ NREL tintim nsɛm wɔ afe 2022 mu a ɛkyerɛ sɛ ebia pulsed charging bɛyɛ brɛoo ankasa wɔ nkwammoaa so sene current current. Ahomegye bere no ma lithium ions san kyekyɛ wɔ electrode no mu. Adwennwen a ɛba fam wɔ adwene a wɔde si biribi so gradient so. Na krataa no nyɛ regen ho asɛm pɔtee nanso charge profiles no te sɛ nea ɛte saa ara.

Po so ahyɛn ho nsɛm a efi taksi nnwumakuw a wɔde Model 3 ahorow di dwuma wɔ New York hɔ no nkyerɛ nsonsonoe biara a wobetumi asusuw wɔ ɔsɛe a ɛwɔ high-regen ne low{2}}regen karkafo ntam. Pack akwahosan wɔ akwansin 150,000 no gu ahorow kɛse wɔ DC fast charging frequency ne wim tebea mu sen regen su ahorow. Na nhwɛsode kɛse yɛ bɛyɛ kar 40 pɛ nanso. Ɛnyɛ nea ɛyɛ nokware.

Me ne batere ho mfiridwumayɛfo baanu bi akasa afa eyi ho. Ɛte sɛ nea adwene a ɛwɔ hɔ ne sɛ regen mprempren dodow no wɔ ahobammɔ a ɛkɔ so gyinapɛn a wɔde ma nnɛyi EV nkwammoaa no mu. 75 kWh pack a enya 50 kW regen pulse yɛ 0.67C pɛ. Ɛno nyɛ hwee. Ebia wo fon charger no bɛbɔ 1C.

Ade a ekum lithium batere ne ɔhyew ne bere a ɛwɔ tebea a ɛkorɔn mu. Regen mmoa pii mma emu biara. Sɛ biribiara a ɛtew top-end SOC exposure so denam ahoɔden a wobɛsan anya a anka ɛsɛ sɛ wode plug in ma no so.

Pedal driving biako kyerɛ regen a ɛyɛ den bere a wobɛma so afi accelerator no so no. Wubetumi de kar atwa kurow no ho ahyia a woremfa wo nsa nka breki no gye sɛ wogyina baabi a ɛyɛ pɛpɛɛpɛ. BMW i3 na ɛyɛɛ eyi ho akwampaefo. Tesla yɛɛ ne ho mfonini. EV dodow no ara de ma mprempren sɛ nea wobetumi apaw.

Blended systems te nka kɛse sɛ kar a ɛyɛ daa. Coast bere a woama so no, regen bere a woabɔ breki no nkutoo. Kar no fra regenerative ne friction breki a ɛnyɛ den. Wonte nsakrae no nka.

Emu nea ɛwɔ he na eye sen biara? Egyina nea wodwen ho so.

Pedal biako san nya ahoɔden pii. Abɔde mu nneɛma ho nimdeɛ a ɛnyɛ den. Wo ne regen reyɛ decelerating wɔ akyirikyiri. Blended mode sɛe coasting fã no ma mframa a ɛko tia ne rolling friction.

Blended yɛ mmerɛw ma akwantufo. Me yere nya kar yare bere a ɔde ne pedal biako ka kar no. Accel-decel-accel-decel a ɛkɔ so daa no haw no. Sɛ ɔwɔ kar mu a me dan kɔ blended mode so. Smoother ride, less regen, obiara ani gye kɛse.

Breki pad nkwa nna ye kɛse wɔ pedal biako so. Mewɔ akwansin 48,000 wɔ original pads so na ɛte sɛ nea ɛkame ayɛ sɛ wɔanhyɛ. Mfiridwumayɛfo bi ka kyerɛɛ me sɛ wahu Teslas sɛ ɛrekɔ akwansin 100,000+ wɔ pads a edi kan so. Pads no titiriw yɛ adwuma wɔ mph kakraa bi a etwa to a wogyina ne ehu tebea horow mu nkutoo. Downside ne sɛ rotors no betumi anya surface rust esiane sɛ wɔmfa nni dwuma nti. Wɔn a wɔtɔn nneɛma binom kamfo kyerɛ sɛ bere ne bere mu no, wɔmfa breki a emu yɛ den ntew na ama wɔahohoro wɔn ho.

Regen suban wɔ ahoɔhare a ɛba fam koraa mu no gu ahorow kɛse wɔ wɔn a wɔyɛ no ntam.

EV dodow no ara fade out regen ase bɛyɛ 5 mph. Motor no ntumi mma current a mfaso wɔ so wɔ nantew ahoɔhare mu. Friction gye di. Nanso ɛsono nsakrae bere ne sɛnea ɛte nka sɛ ɛyɛ mmerɛw.

Porsche Taycan wɔ low speed regen a ɛyɛ mmerɛw sen biara a manya. Audi e-tron GT nso, platform koro no ara. Germanfo mfiridwuma ho ade bi rekɔ so wɔ hɔ. Tesla yɛ decent nanso ɛnyɛ polished sɛ. EV ahorow a ne bo yɛ mmerɛw no bi te nka sɛ ɛyɛ jerky wɔ saa nsakrae beae no. Chevy Bolt nyaa anwiinwii wɔ eyi ho ntɛm ara. Akyiri yi softwea foforo a wɔyɛe no boaa.

Traction control nkitahodi ahorow nya anigye wɔ mmeae a ɛyɛ hwerɛma. Regen de breki ahoɔden di dwuma wɔ drive wheels no nkutoo so. Wɔ akyi-drive EV a ɛkyerɛ sɛ akyi breki fi regen nkutoo. Bɔ nsukyenee bere a worebrɛ ne ho ase na akyi awiei no betumi afi adi. Stability control system dodow no ara bɛtwa regen sɛ wohu sɛ slip a. Ebinom yɛ no yiye sen afoforo.

Me nnyaa ɔhaw biara da nanso makenkan kyerɛwtohɔ ahorow a ɛfa Model S wuranom a wodii kan twitwiw wɔn ho wɔ sukyerɛmma so bere a regen a ɛyɛ basabasa no bunkam akyi twetwe so no. Wɔkyerɛ sɛ Tesla yɛɛ eyi yiye wɔ software a ɛbaa akyiri yi mu. Ɛyɛ den sɛ wobɛkyerɛ sɛ ɛyɛ nokware.

Regenerative Braking

Regen yɛ mfaso ankasa a EV ahorow wɔ sen ɔhyew no mu biako. Wosan nya ahoɔden a anka ɛbɛyɛ breki mfutuma ne ɔhyew. Mfaso ankasa a wonya wɔ wiase no sua sen sɛnea nhomawa ahorow no ka no nanso ntease da so ara wɔ mu, titiriw wɔ kar a egyina na wokɔ mu.

Wim tebea a ɛyɛ nwini ne batere a enni hɔ nyinaa yɛ nokware na ɛyɛ ahometew. Yɛ nhyehyɛe twa wɔn ho hyia anaasɛ tra ase a ɛnyɛ adwuma yiye. Ade a wɔde di gua wɔ gas a wɔntɔ ho ne sɛ wobedi batere mu nnuruyɛ mu nneɛma a ɛyɛ nwonwa ho dwuma.

Egye bɛyɛ ɔsram biako ansa na woatumi ayɛ nsakrae wɔ ɔkwan a wofa so ka kar no mu. Ɛno akyi no ɛte sɛ nea ɛyɛ ade a ɛfata. Sɛ wosan kɔ kar a wɔde gas yɛ mu a, ɛte sɛ nea ɛyɛ tete de. Ɛno ne regen hook no.