SoulEV2016
Posts: 572
Joined: Mon Jul 18, 2016 6:26 am

Re: Somes graphics about Chademo Charge Station.

Sat Nov 26, 2016 6:16 am

Chademo is restrict to 500v DC, i think ... because all manufactured of Chademo/CCS station charge from my country restrict the spec to 500v DC (ABB, DBT, EVtronic).

Strange that eBus maker don't have 2 packs of 400v DC and 2 plugs for Chademo.
Kia Soul EV 2016 Ultimate 27 kWh - Mountain hard driving (fast). Drain 1/3 of Battery after 32km. - Unlimited highway speed (153km/h at regulator).

JejuSoul
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Re: Somes graphics about Chademo Charge Station.

Sat Nov 26, 2016 7:20 am

Here's a photo of a N issan L eaf being stress tested with 600V chademo. It doesn't seem to damage the car.

Image

Taken from YouTube video CHAdeMO QC25LV 600V 36kW by E MotorWerks

https://www.youtube.com/watch?v=heJOTydLijY
Last edited by JejuSoul on Fri May 19, 2017 4:38 pm, edited 2 times in total.
The codes for using Torque Pro can be found by clicking the link in the website icon under my user name on the left.

SoulEV2016
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Joined: Mon Jul 18, 2016 6:26 am

Re: Somes graphics about Chademo Charge Station.

Sat Nov 26, 2016 7:35 am

Strange ... because the main goal of Chademo CanBus protocol is to restrict the voltage of the station (390v from 0-84% and 394v from 84-94% for the Soul EV).

So, when you use the 600v DC supply ... the Chademo PWM command restrict the output at the builder level.

And so when you plug an eBus 600v to 500v DC Chademo ... it don't like that. :mrgreen: (but chademo don't allow to open the power wire because of the invalid voltage mesure).

EDIT : see the LOGS in the vidéo = voltage restrict to 394v.
the 2 wire from the side of the fan is for this, i think ... to command the voltage of the supply by PWM in the Chademo Control Box.

Cool to see that we have a DC supply that it can have a wide range of voltage setting ... not usual at high current (90-450v like i see in the config file on the right).
Kia Soul EV 2016 Ultimate 27 kWh - Mountain hard driving (fast). Drain 1/3 of Battery after 32km. - Unlimited highway speed (153km/h at regulator).

Elmil
Posts: 142
Joined: Mon Oct 26, 2015 9:46 am
Location: Sweden

Re: Somes graphics about Chademo Charge Station.

Sat Nov 26, 2016 8:48 am

JejuSoul wrote:Here's a photo of a Nissan Leaf being stress tested with 600V chademo. It doesn't seem to damage the car.

No, it's the charger equipment that is stress tested.

It doesn't matter if the Chademo is capable of outputting 500V, 600V or 2000V - the charging voltage will always be a result of the charging current. The car requests current, the charger delivers current. Voltage is only a limiting parameter.
Kia Soul EV 2015 / 115,543 km Sold
Kia Soul EV 2019

SoulEV2016
Posts: 572
Joined: Mon Jul 18, 2016 6:26 am

Re: Somes graphics about Chademo Charge Station.

Sat Nov 26, 2016 10:42 am

Yep, it's sure.
Current is always the limitation ... for connector after all. :mrgreen:

Image
Kia Soul EV 2016 Ultimate 27 kWh - Mountain hard driving (fast). Drain 1/3 of Battery after 32km. - Unlimited highway speed (153km/h at regulator).

JejuSoul
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Re: Somes graphics about Chademo Charge Station.

Sat Jan 07, 2017 10:54 pm

A Chinese company is advertising a portable 15kW Chademo c harger for the Soul EV. --- http://www.electway.net/product/15KW_Po ... c_car.html
It costs 4,600 Euros and is best used with a 380V Industrial power supply.
This is NOT something I would buy, and is NOT something I would recommend, but do think it is interesting.
Also I'm deliberately not linking to their Facebook page because that gives the impression that this is a German product.

Image

Here's some photos of it it the trunk of a Soul EV.

Image

Image

and here is the screen it shows while charging

https://www.youtube.com/watch?v=fkg7_HVKxvg
Last edited by JejuSoul on Fri May 19, 2017 4:39 pm, edited 1 time in total.
The codes for using Torque Pro can be found by clicking the link in the website icon under my user name on the left.

Elmil
Posts: 142
Joined: Mon Oct 26, 2015 9:46 am
Location: Sweden

Re: Somes graphics about Chademo Charge Station.

Sat Feb 11, 2017 6:10 am

During Christmas holiday I made a 1000km roadtrip and visited several CHAdeMO stations. A utility company has installed two new Delta char gers along that road, and a few findings when using them are noteworthy:

1. When plugging in, the c harging started automatically, and also restarted automatically after 84% was finished. Nice.
2. The cable connector was labled 125A/500V as usual, but the stations delivered 133A+, and the power peaked at 51.5kW :)
3. The graphs below show one session. I have used the cumulated charge and discharge counters from the BMS to get the net energy added to the battery. I have many times noted that there is a delay of several minutes at SOC 81%, and this is shown here.

Can anyone come up with an explanation other than cell balancing?

Image
Kia Soul EV 2015 / 115,543 km Sold
Kia Soul EV 2019

JejuSoul
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Re: Somes graphics about Chademo Charge Station.

Fri Mar 31, 2017 9:48 pm

Just got this from an I oniq user in Germany. Why is this different from the graph on our car? Just noticed this is plotting using SOC% on the x axis whereas we are using time. Does that explain it? Also this is CCS and we use Chademo.

I made on my I oniq a plot of Battery charging current and battery voltage vs. SOC [%] on a 50kW CCS charging point.
I am a little bit surprised that battery voltage rises again above 84%, on mobile phones the voltage stays on the same level there.
Do you have a similar measurement on the Soul ? As far as I know the Soul stops charging earlier on a DC Fast c harger, maybe this curves explain the difference....


Image
Last edited by JejuSoul on Sat Apr 01, 2017 2:57 am, edited 1 time in total.
The codes for using Torque Pro can be found by clicking the link in the website icon under my user name on the left.

Elmil
Posts: 142
Joined: Mon Oct 26, 2015 9:46 am
Location: Sweden

Re: Somes graphics about Chademo Charge Station.

Sat Apr 01, 2017 12:01 am

JejuSoul wrote:Just got this from an I oniq user in Germany. Why is this different from the graph on our car? Just noticed this is plotting using SOC% on the x axis whereas we are using time. Does that explain it? Also this is CCS and we use Chademo.

I made on my I oniq a plot of Battery charging current and battery voltage vs. SOC [%] on a 50kW CCS charging point.
I am a little bit surprised that battery voltage rises again above 84%, on mobile phones the voltage stays on the same level there.
Do you have a similar measurement on the Soul ? As far as I know the Soul stops charging earlier on a DC Fast c harger, maybe this curves explain the difference....


Can't see your image (restrictions at Goingelectric), but isn't that just the same 2-stage strategy as we have in the Soul? Voltage target is around 389V for first stage (84%) and when restarted the voltage target is 394V. See the top of my graph above.
Kia Soul EV 2015 / 115,543 km Sold
Kia Soul EV 2019

JejuSoul
Posts: 1577
Joined: Wed Jul 08, 2015 6:47 am
Location: Jeju
Contact: Website

Re: Somes graphics about Chademo Charge Station.

Sat Apr 01, 2017 2:49 am

-
Thanks Elmil,

I will fix the permission problem preventing the image being seen.
I asked the Daejon EV group the same question. They gave the same answer. - I think if we transform the axis then two should be identical.

Also about the cell balancing you asked in the post before that.
A battery professional in that user group says it is cell balancing.

We then had the following discussion on why the balancing occurred at 81% not at the end of charge.

Ray EV user: I simply guess it's because fast charging finishes at 80%.
Ray EV user: No. I was confused since the Ray EV can only fast charge up to 80%

JejuSoul: It may just be that they wrote the BMS software for the Ray EV and haven't updated it.
The codes for using Torque Pro can be found by clicking the link in the website icon under my user name on the left.

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