Stop
Hvor mange opladningsstop kræver en rute?
Maksimal opladningseffekt er et marketingtal, der kun holder i få minutter. Det, der afgør din tur, er den gennemsnitlige effekt inden for det interval, du rent faktisk bruger.
Ladekurven
Et batteri optager ikke energi med en konstant hastighed. Effekten er højest ved en lav ladetilstand og aftager, når pakken fyldes, fordi det at tvinge strøm ind i en næsten fuld celle risikerer litiumplettering og permanent skade. Hurtigladningsmodeller på celleniveau beskriver denne adfærd direkte [3].
Så to biler, der reklamerer med samme maksimale effekt, kan afvige med femten minutter ved samme stop, afhængigt af hvor længe hver af dem holder effekten, før den aftager. En bil, der topper lavere, men holder den mere jævnt, er ofte hurtigere i praksis.
Ladehastighed og ladetilstand
Hvorfor 10-80 %
Under cirka 10 % risikerer du at ankomme uden margin. Over cirka 80 % er aftagningen så kraftig, at du venter længe på en lille mængde energi. At oplade fra 80 til 100 kan tage lige så lang tid som 10 til 80 gjorde.
På en lang køretur vinder to 10-80-stop næsten altid over et 10-100-stop plus et kortere andet stop. Undtagelsen er den sidste etape, hvor det giver mening at oplade højt én gang, fordi du ikke betaler aftagningsstraffen to gange.
Stop er også for dig
Forskning i førertræthed støtter konsekvent regelmæssige pauser på lange køreture, og det interval, der fremkommer, ligger tæt på, hvad en moderne elbil alligevel har brug for. Det stop, du ærgrer dig over som en ladebegrænsning, er et stop, du burde tage alligevel.
Det, der gør det til at holde ud, er hvor du stopper. En oplader på en ubelyst parkeringsplads ved en butik uden faciliteter er en helt anden oplevelse end en, der er placeret et sted, hvor man kunne spise — hvilket er grunden til, at vores motorvejsmad-side findes.
Ofte stillede spørgsmål
Skal jeg oplade til 100 %, før jeg kører af sted?
Er en bil med højere maksimal kW altid hurtigere?
Hvor ofte skal jeg egentlig stoppe?
Hjælper det batteriet at oplade til 80 %?
Relateret læsning
- Hvor mange timer bør du egentlig køre, før du holder en pause?
- Trailer eller tagboks: hvor meget rækkevidde taber din elbil?
References
Every citation below links to the original peer-reviewed record on PubMed or via DOI. Nothing here is a substitute for medical advice.
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