Type 2 vs CCS charging speeds

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londiniumperson
Posts: 1764
Joined: Fri Oct 11, 2019 2:37 pm

Post by londiniumperson »

Here's a graph of my home EV charging data for overnight (Watts on y axis, time on X axis).
Home charger: Ohme
Electric tariff: Octopus Go Faster 2030 (4 hr)
Starting at 20:30 hrs on 27/1/2021 with 36%, finishing at 100%:

2021-01-27_2030-2400.png

2022 Advance in Crystal Black Pearl on 17's - 08/2020-Current
2015 VW Tiguan (Pure White) - 04/2018-Current
1991 Honda Beat PP1 (Festival Red) - 11/2022-Current

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HausO
Posts: 15
Joined: Wed Dec 09, 2020 11:59 am
Location: Duisburg / Germany

Post by HausO »

Ok, the reason for the changing loads was your local power management. But you was able to load with more than 7kW (with power management/old tariff), now it's about 6.5kw. Do you know the reason why the load is now reduced?

P.S.: 1.4kW from the old graphs is the minimum load of your charger (except zero) at 6A => 230V x 6A = 1380VA about 1,4kW. Less than 6A is not possible with AC charging.
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londiniumperson
Posts: 1764
Joined: Fri Oct 11, 2019 2:37 pm

Post by londiniumperson »

HausO wrote: Fri Jan 29, 2021 11:18 am Ok, the reason for the changing loads was your local power management. But you was able to load with more than 7kW (with power management/old tariff), now it's about 6.5kw. Do you know the reason why the load is now reduced?

P.S.: 1.4kW from the old graphs is the minimum load of your charger (except zero) at 6A => 230V x 6A = 1380VA about 1,4kW. Less than 6A is not possible with AC charging.
An EVSE in simple terms is just a relay and a signal wire, the voltage of which is regulated by the vehicle and therefore determines the current that can be accepted. My electricity tariff & EVSE (Ohme) do not control the current draw, this as I have stated is dictated by the the vehicle.

I also log the voltage & on the first set of graphs the lowest current draw was 5.16A (1289W / 249.7V)
On the more recent graphs, the lowest was 1.67A (415W / 248.5V)

Please explain or link an article to where it explains that it is not possible to charge on AC below 6A.

Here is the graph zoomed in on 27/1/2021 between 23:44 hrs & 00:04 hrs (Watts on the left y axis, Voltage on the right y axis & time on X axis).:

2021-01-27 from 2344 to 0004.png

2022 Advance in Crystal Black Pearl on 17's - 08/2020-Current
2015 VW Tiguan (Pure White) - 04/2018-Current
1991 Honda Beat PP1 (Festival Red) - 11/2022-Current
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HausO
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Joined: Wed Dec 09, 2020 11:59 am
Location: Duisburg / Germany

Post by HausO »

@londiniumperson: Sorry, it's not the minimum load, but it's the smallest maximum load that the wall box can signal to the onboard charger.

https://web.archive.org/web/20120307041 ... roject.pdf Page 19
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Mr_Helge
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Joined: Mon Oct 19, 2020 5:02 pm
Location: Stockholm, Sweden

Post by Mr_Helge »

I have graphs for both rapid/quick (50kW+ DC) charging and fast charging (7kW AC)

Regarding rapid/quick charging, Bjorn Nyland tested the Honda e at Ionity 350kW.
Youtube: Honda e fast charging comparison

I've compiled a charging graph for the Honda e below using Bjorns numbers.
Notice that this values was in the summer at 29C.

Image

For the fast charging graph I've done the measures my self with a Power Energy Logger.
I have a Honda Power Charger S+ hooked up to a 22kW/32A/3-phase circuit.

Download the whole Trend Report: Honda_e_7,4kW.pdf

Quick Summary: Start charging at 5% SOC all the way to 100%. Total time 4h30min. Tapering the last 30min. (see "End Tails" for details).
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FDAD
Posts: 492
Joined: Mon Aug 10, 2020 1:55 pm
Location: Porto, Portugal

Post by FDAD »

Here is a video of a charging I did in CCS 50kw. It's the second time I've charged at this location and it never goes beyond 35kw.
YouCut_20210211_130906074.mp4
(5.97 MiB) Downloaded 152 times
Honda E advance [Modern Steel Metallic] 8-) [DELIVERED JULY 2020] - 85 000Kms + ✌️🎂
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