DarthPuppy
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Re: Chademo killed my new 2018 Leaf

Mon Mar 19, 2018 3:36 pm

By virtue of the wording "EV Supply Equipment", this term would logically be the catch all which is how I intended it. On this forum, one would think it is the politically correct term since usually if someone says "charger" they get chastised for not using EVSE.

In this particular case, I see the benefit of differentiating. So the DC units are truly chargers and therefore there is more inter-dependency and vulnerability between the charger and the car? That creates a lot of finger pointing opportunity! I didn't realize that each time I go for a level 3, I was taking that much risk.
'13 Leaf SL
'18 Honda Clarity Touring PHEV

LeftieBiker
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Location: Upstate New York, US

Re: Chademo killed my new 2018 Leaf

Mon Mar 19, 2018 4:46 pm

On this forum, one would think it is the politically correct term since usually if someone says "charger" they get chastised for not using EVSE.


People often come here looking for technical help. Calling one device by the name of another, different device isn't a good way to ensure that this help is effective. I know that in recent years the language in general has been tossed into the toilet, but if people can't be bothered to use the actual names for their car's major components, maybe they should just let the dealers rob them instead.

As phones get smarter, people get dumber.
Scarlet Ember 2018 Leaf SL W/ Pro Pilot
2009 Vectrix VX-1 W/18 Leaf modules, & 3 EZIP E-bicycles.
PLEASE don't PM me with Leaf questions. Just post in the topic that seems most appropriate.

SageBrush
Posts: 2407
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Location: Colorado

Re: Chademo killed my new 2018 Leaf

Mon Mar 19, 2018 4:49 pm

LeftieBiker wrote:
On this forum, one would think it is the politically correct term since usually if someone says "charger" they get chastised for not using EVSE.


People often come here looking for technical help. Calling one device by the name of another, different device isn't a good way to ensure that this help is effective. I know that in recent years the language in general has been tossed into the toilet, but if people can't be bothered to use the actual names for their car's major components, maybe they should just let the dealers rob them instead.

Amen.
2013 Model 'S' with QC & rear-view camera
Bought off-lease Jan 2017 from N. California
Car is now enjoying an easy life in Colorado
3/2018: 58 Ahr, 28k miles

SageBrush
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Re: Chademo killed my new 2018 Leaf

Mon Mar 19, 2018 4:55 pm

DarthPuppy wrote:By virtue of the wording "EV Supply Equipment", this term would logically be the catch all which is how I intended it. On this forum, one would think it is the politically correct term since usually if someone says "charger" they get chastised for not using EVSE.

In this particular case, I see the benefit of differentiating. So the DC units are truly chargers and therefore there is more inter-dependency and vulnerability between the charger and the car? That creates a lot of finger pointing opportunity! I didn't realize that each time I go for a level 3, I was taking that much risk.


"charger" is a fairly idiotic term too. The component is an AC to DC rectifier.
2013 Model 'S' with QC & rear-view camera
Bought off-lease Jan 2017 from N. California
Car is now enjoying an easy life in Colorado
3/2018: 58 Ahr, 28k miles

WetEV
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Delivery Date: 16 Feb 2014
Location: Near Seattle, WA

Re: Chademo killed my new 2018 Leaf

Tue Mar 20, 2018 8:15 am

SageBrush wrote:"charger" is a fairly idiotic term too. The component is an AC to DC rectifier.


Err... No.

AC to DC rectifying after filtering produces a DC voltage near the peak voltage. 120VAC is 120V RMS, and about 170V peak. The battery pack needs near 400 V, and also needs the current controlled. This is what a charger does.

V(line) => rectifier => filter capacitors => charger => V(battery)

I built my first charger for rechargeable batteries (Ni-cad) back in 1975. Have you ever built a battery charger?
WetEV
#49
Most everything around here is wet during the rainy season. And the rainy season is long.
2012 Leaf SL Red (Totaled)
2014 Leaf SL Red

SageBrush
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Re: Chademo killed my new 2018 Leaf

Tue Mar 20, 2018 10:39 am

WetEV wrote:
SageBrush wrote:"charger" is a fairly idiotic term too. The component is an AC to DC rectifier.


Err... No.


I forgot about the step up in voltage. So a rectifier and converter if AC ->DC is the first step,
or a transformer followed by rectification if the voltage change is first.
2013 Model 'S' with QC & rear-view camera
Bought off-lease Jan 2017 from N. California
Car is now enjoying an easy life in Colorado
3/2018: 58 Ahr, 28k miles

SageBrush
Posts: 2407
Joined: Sun Mar 06, 2011 2:28 am
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Location: Colorado

Re: Chademo killed my new 2018 Leaf

Tue Mar 20, 2018 10:53 am

DarthPuppy wrote:By virtue of the wording "EV Supply Equipment", this term would logically be the catch all which is how I intended it. On this forum, one would think it is the politically correct term since usually if someone says "charger" they get chastised for not using EVSE.

In this particular case, I see the benefit of differentiating. So the DC units are truly chargers and therefore there is more inter-dependency and vulnerability between the charger and the car? That creates a lot of finger pointing opportunity! I didn't realize that each time I go for a level 3, I was taking that much risk.

IIRC 'EVSE' stands for 'Electric Vehicle Safety Equipment.'
So the term is meant to emphasize the handshake, logic and switches. The power is not modified as it passes through the EVSE.

A ChaDemo station performs EVSE type functions with the car and in most instances AC to DC as well as a voltage change before sending the power to the car. If you use 'charger' to mean rectification and/or converter/transformer duties, then the station is a combination EVSE and charger.
2013 Model 'S' with QC & rear-view camera
Bought off-lease Jan 2017 from N. California
Car is now enjoying an easy life in Colorado
3/2018: 58 Ahr, 28k miles

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RegGuheert
Posts: 6206
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Leaf Number: 5926
Location: Northern VA

Re: Chademo killed my new 2018 Leaf

Tue Mar 20, 2018 1:38 pm

SageBrush wrote:IIRC 'EVSE' stands for 'Electric Vehicle Safety Equipment.'
To use the words of WetEV: Err... No.
RegGuheert
2011 Leaf SL Demo vehicle
10K miles: Apr 14, 2013, 20K miles (55.7Ah): Aug 7, 2014, 30K miles (52.0Ah): Dec 30, 2015, 40K miles (49.8Ah): Feb 8, 2017, 50K miles (47.2Ah): Dec 7, 2017.
Enphase Inverter Measured MTBF: M190, M215, M250, S280

DarthPuppy
Posts: 620
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Re: Chademo killed my new 2018 Leaf

Tue Mar 20, 2018 5:29 pm

LOL. I had originally put EV Service Equipment but decided to look up the correct translation before I posted. It is Supply Equipment.
'13 Leaf SL
'18 Honda Clarity Touring PHEV

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Nubo
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Re: Chademo killed my new 2018 Leaf

Tue Mar 20, 2018 11:09 pm

Image
I noticed you're still working with polymers.

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