There is no such thing as a Level 3 EV charger

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TIMELINE:
0:00 introduction
0:28 Four Charging Methods of J1772
0:40 J1772 history
0:48 1996 and 2001 Level 3 charging proposals
1:10 J1772 is for conductive charging
1:19 J1773 Inductive charging
1:35 Terminology and electrical principles
1:45 1. All EVs and PHEVs use two different DC batteries
2:22 2. DC Batteries need to be charged with DC power
2:29 3. The 12V battery is charged with power from the high voltage DC battery
2:34 Most off-board chargers supply AC power to the vehicle
2:56 4. AC power is converted to DC power by the on-board charging module (OBCM)
3:45 2018 Tesla Model S P100D OBCM
3:53 2018 Chevrolet Volt OBCM
3:53 2017 Chevrolet Bolt EV OBCM
5:18 There are two different J1772 AC charging levels
6:20 There are two different J1772 DC charging levels
6:58 DC Level 1 charging and Tesla charging
7:42 5. Charge rate control (*See correction below)
9:20 Level 2 Charge Coupler (CCS)
10:18 AC and DC charging contacts
10:56 Contact 1 AC L1 and DC+
11:19 Contact 2 AC N, L2, and DC-
11:45 Contact 3 Protective Earth (PE)
11:50 Contact 4 at Control Pilot (CP) (*See correction below)
12:30 Contact 5 Control Status (CS) (*See correction below)
13:27 Contact 5 at Proximity Detection (PD)
14:15 Contact 6 DC+
14:39 Contact 7 DC-
14:43 J1772 recommended practice verses surface vehicle standard
15:58 Electric Vehicle Supply Equipment (EVSE) standards a
16:18 NFPA Document 70 NEC Article 625
17:32 J1772 off-board charger to vehicle EVSE standards
17:58 Off-board chargers need to be (UL) listed, Intertek (ETL) Listed, CSA certified, or ANSI certified to verify EVSE compliance
18:45 Video wrap-up
Download my pdf of the J1772 Level Charge Receptacle here: weberstate.box.com/s/wcksjm6j...
*CORRECTIONS:
I made some mistakes in the video and thanks to the great feedback I have received, the following corrections need to be made.
1. When using an EVSE compliant AC charging station or cord set, this equipment (EVSE) is not technically considered a charger. Instead, it passes the AC power to the vehicle's on-board charger, where it is converted to DC power to charge the vehicle's battery.
2. Control Pilot (CP) Contact #4.
- For AC Level 1 and AC Level 2 charging, the vehicle does not signal the EVSE how much current it needs. Instead, the external equipment (EVSE) signals the vehicle how much current it is capable of providing. Next, the vehicle's on-board charging module takes whatever amount of current it needs up to that limit.
- For DC Level 1 and AC Level 2 charging, the off-board charger signals to the vehicle that Power Line Communication (PLC) is necessary. Using PLC over the Control Pilot (CP) circuit, the vehicle's on-board power line communication module tells the off-board DC charger how much current to supply to charge the vehicle's battery.
3. Proximity Detection (PD).
Contact #5 of the J1772 charge coupler (CCS Receptacle) uses Proximity Detection (PD), not Proximity Pilot (PP). Proximity Detection detects the connection to the vehicle (as described in the video). Proximity Pilot (PP) is not used in the USA; it is used in some other countries where the charging coupler cable from the EVSE to the vehicle can be swapped to another cable that may or may not be able to carry the same current. The Proximity Pilot signal indicates how much current the cable can handle.
4. I have updated my graphic of the J1772 DC Level 2 Charge Coupler. You can download it here: weberstate.box.com/s/wcksjm6j...
ABOUT US:
Weber State University (WSU) - Department of Automotive Technology - Ardell Brown Technology Wing - Transmission Lab. Forget what you have heard; there is no such thing as a Level 3 EV charger. Join me to learn about the four actual EV and PHEV charging methods of the SAE J1772 Surface Vehicle Standard.
WSU is a leader in Hybrid and Electric Vehicle education. This topic is taught as part of our 4-year bachelor's degree program. For information on joining the Weber Automotive program, visit: www.weber.edu/automotive
This video was created and edited by Professor John D. Kelly at WSU. For a full biography, see www.weber.edu/automotive/J_Kel...
ADDITIONAL TRAINING FOR YOU:
Join us for hybrid and electric vehicle training with two online courses and in a 5-day on-campus boot camp with Professor John D. Kelly. See www.weber.edu/evtraining
DONATE TO OUR DEPARTMENT:
Please consider a donation to the Department of Automotive Technology at Weber State University here: advancement.weber.edu/Automotive

Пікірлер: 895

@WeberAuto 4 жыл бұрын

CORRECTIONS: I made some mistakes in the video and thanks to the great feedback I have received, the following corrections need to be made. 1. When using an EVSE compliant AC charging station or cord set, this equipment (EVSE) is not technically considered a charger. Instead, it passes the AC power to the vehicle's on-board charger where it is converted to DC power to charge the vehicle's battery. 2. Control Pilot (CP) Contact #4. - For AC Level 1 and AC Level 2 charging, the vehicle does not signal the EVSE how much current it needs. Instead, the external equipment (EVSE) signals the vehicle how much current it is capable of providing. Next, the vehicle's on-board charging module takes whatever amount of current it needs up to that limit. - For DC Level 1 and DC Level 2 charging, the off-board charger signals the vehicle that Power Line Communication (PLC) is necessary. Using PLC over the Control Pilot (CP) circuit, the vehicle's on-board power line communication module tells the off-board DC charger how much current to supply to charge the vehicle's battery. 3. Proximity Detection (PD). Contact #5 of the J1772 charge coupler (CCS Receptacle) uses Proximity Detection (PD), not Proximity Pilot (PP). Proximity Detection detects the connection to the vehicle (as described in the video). Proximity Pilot (PP) is not used in the USA, it is used in some other countries where the charging coupler cable from the EVSE to the vehicle can be swapped to another cable which may or may not be able to carry the same current. The Proximity Pilot signal indicates how much current the cable can handle. 4. Tesla Models S, X, and 3 OBCM is rated at a maximum of 240V x 48A = 11,520 Watts or 11.52 kW 5. I have updated my graphic of the J1772 DC Level 2 Charge Coupler. You can download it here: weberstate.box.com/s/wcksjm6j80ubrqdqkqr8sy8o6vhlgr0t

@ClockworksOfGL 4 жыл бұрын

WeberAuto - The best way to get an answer on the internet is not to ask a question, but to say something incorrect.

@WeberAuto 4 жыл бұрын

@@ClockworksOfGL LOL, very true ;)

@InternetDude 4 жыл бұрын

if you pin your comment it will show up at the top of the comments and would be a good idea.

@WeberAuto 4 жыл бұрын

@@InternetDude Thanks, I just did that

@koeniglicher 4 жыл бұрын

@WinterHell Now it's pinned. But there are still errors in this correction: 1) Control pilot: there is an additional limit in the AC charging current, that is set by the used charging cable that connects the vehicle inlet and AC charging outlet. Imagine a case where the AC charger in the vehicle can accept 80A, the J1772 outlet provides up to 80A (and is configured that way) but the used AC charging cable is only suitable for 40A. In this case a resistance coding in the cable pulls down the voltage of the PWM signaling over CP for the max amperage to 40A. With the reason being that in AC charging, customers bring along their AC charging cable, this case of an under-rated AC cable can happen and is important to take into accont. It is also the reason, why newer AC chargers (and Tesla from day one of their Destination chargers) use AC cables fixed to the infrastructure side. It's more convenient (as long as people accpept cables flying around at charging lots all the time and not only when a car is charging) and it reduces the risk of people getting slow charging speed just due to a cable being used with too low amperage. But the primitive AC charging system is safe even for that case. 2) The CCS graphics is still incorrect. As in practice Tesla Model 3 vehicles with the Long Range battery charge at up to *500 Ampere* over the (liquid-cooled) DC contacts of a CCS plug/inlet. See this video example from Germany for reference: kzfaq.info/get/bejne/ld55mKh00Z7ZqHk.html Tesla Model 3 Long Range with a CCS combo 2 inlet, ionity Charger with CCS combo 2 connector. DC charger made by Tritium or ABB Terra. So contacts 6 and 7 of the CCS plug can accept 500 A with the right connectors and inlets, not only 400A as stated in the graphics. If you are interested, check the CCS connectors of your ElectrifyAmerica CCS chargers over in the US. I know, that in the US, there is CCS Combo Type1 and not CCS Combo Type 2 as here in Europe. But the spec for the DC contacts (that are shared) should be the same. Please get the newest version of the CCS standard. 3) For clarity, all AC and DC charging power values should be stated as voltage x amperage = charging power. This way, people get the limitations in amperage and voltage much better. Like 1 phase, 120V AC * 16A = 1920 W= 1,92 kW AC. 1 phase, 240V AC * 80A = 19200 W= 19,2 kW AC. It makes clear, how these values are calculated. 600V DC * 80A = 48 kW DC. Almost nowhere used. For 96s Li-Ion batteries: 400V DC * 60A peak = 24 kW DC peak. home or residential DC chargers 400V DC * 125A peak = 50 kW DC peak. suburbian DC chargers 400V DC * 200A peak = 80 kW DC peak. city DC chargers 400V DC * 365A peak = 145 kW DC peak. Tesla Superchargers V2 400V DC * 400A peak = 160 kW DC peak. early long distance chargers 400V DC * 500A peak = 200 kW DC peak. more recent long distance chargers For 108s Li-Ion batteries: 450V DC * 60A peak = 27 kW DC peak. 450V DC * 125A peak = 56 kW DC peak. 450V DC * 200A peak = 90 kW DC peak. 450V DC * 400A peak = 180 kW DC peak. 450V DC * 500A peak = 225 kW DC peak. For future batteries: 1000VDC * 400A peak = 400 kW DC peak. 1000VDC * 500A peak = 500 kW DC peak. The DC chargers have an additional limitation in their uplink, that they will enforce. I recommend the additional lines with 400VDC as a typical voltage resulting from the charging voltage being slightly higher than about 96 cells of Li-Ion batteries in series at about 50% SoC, as used in so many battery-electric cars. And with amperage values from common DC connectors. In the end, this practical limit is much more relevant than the limits of the standard itself. Because apart from Porsche Taycan, there are no vehicles with 700-800V DC yet. Let's wait and see, what Tesla Cybertruck will offer in that regard. :-)

@oldroscoe2590 4 жыл бұрын

71 years old and I'm still learning, all the time. Thanks for making these videos.

@corrado95ful Жыл бұрын

I am 80, and still learning. Have just bought my MG ZS EV.

@jamesdaniel947 9 ай бұрын

Just bought my Mustang Mach e GT Performance @ 72 and still learning, which is what we do with this new technology. There is a lot to learn!

@garyvanremortel5218 4 жыл бұрын

John, your videos are the Gold Standard for how all training videos should be. Well done on all fronts.

@WeberAuto 4 жыл бұрын

Thank you!

@koeniglicher 4 жыл бұрын

Given the number of conceptual errors in this particular video, for "Gold standard" these videos should have been peer-reviewed before being broadcast. And instead of a pinned comment, videos with such basic errors should be withdrawn, corrected inside the video itself with new wording and footage and then released again.

@WeberAuto 4 жыл бұрын

@@koeniglicher KZfaq no longer allow changes to a video once it has been released. I am working on an updated version to replace this one for the 46 people out of 40,000 who noticed them as of today. Thanks for your feedback.

@misstakenot9582 4 жыл бұрын

@@WeberAuto Would you consider using a better mic for the next video? One more suited to pro audio than telephony?

@brianb-p6586 Жыл бұрын

@@WeberAuto the corrections are not really for the 46 people who noticed errors - they're for the 39,954 people who didn't know that those things were incorrect and would be misled (at least in some minor way) by the original video.

@yobyotYT 2 жыл бұрын

Possibly the very best intro to EV charging available. Everyone who buys an EV should watch this.

@scottxiong5844 4 жыл бұрын

Totally informative and totally worth 20 minutes of my life :D. I believe we can totally use this to educate prospective EV owners.

@WeberAuto 4 жыл бұрын

Thank you, I hope so

@davidbeaulieu4815 4 жыл бұрын

Eh most americans want it as simple as possible. Like a gas car they dont want to think of it they just want to plug it and charge it in a couple minutes. Most people find even ten minutes too long and though theres research that has achieved that by heating the battery to 60 Celsius charging hard for ten min then discharging the heat quickly to minimize plating its still ten minutes minimum with lithium ion. Oh and dont expect that ten min time for a few years unless solid state comes out before the slated 2024 release. Personally im in new Hampshire so if i could find a chatger that does it in less then 8 hrs id be happy😞

@tjam4229 4 жыл бұрын

There really IS a "Level 3 Charging"...It's just not recognized by the Society of Automotive Engineers ;-) It comes down to communicating a message. If the vast majority of people understand that "Level 3 charging" is done via DC current, then for all intents and purposes, there IS a level 3 charging. I guess it can be referred-to as 'slang', but the use of words are all about getting the proper message across. I totally see where you are coming-from though! Thanks for the awesome videos! (PS: I wrote this after watching 34 seconds of this video, I reserve the right to retract my comment :-) Professor Kelly, you are one smart guy. I wish I had you as a neighbor. I would be tapping into your knowledge constantly. I own a Chevy Bolt. Your expertise in this field far exceeds anyone I have ever come across, on KZfaq or otherwise. I occasionally forward your best videos to the local Electric Car Association. This will be one of them. A definite thumbs-up.

@WeberAuto 4 жыл бұрын

Thank you for your feedback

@mychevysparkevdidntcatchfi1489 4 жыл бұрын

True that popular use of "level 3" is now level 2 DC (which I call DCFC). But What will happen when actual level 3 begin to be deployed? it will cause whole lot of confusion for L3AC and if the connectors / protocol are different from L2DC. Better to encourage the use of correct terminology now.

@markyormark7747 4 жыл бұрын

Yes, but there is also AC Level 3 charging. Therefore you are not correct.

@soyguikai 4 жыл бұрын

@@markyormark7747 Which one is that?

@markyormark7747 4 жыл бұрын

@@soyguikai, AC Level 3 is anything over 18kW . To go over level 3-phase power is used. And yes there currently are on board charger capable of using 3 phase power over 18kW

@robingoergner725 4 жыл бұрын

Thank you, Professor Kelly, for sharing your knowledge about and enthusiasm for EVs. As the owner of a 2019 Chevrolet Bolt EV, I've gained a better understanding about the workings of EVs in general and my Bolt EV in particular through your videos. Best wishes and thanks to you and your fellow educators for everything you do for the community.

@WeberAuto 4 жыл бұрын

Thank you very much

@andrewk778 4 жыл бұрын

I always look forward to your videos. I think you have the best presentation style of anyone on KZfaq. The content is always interesting, informative and educational. Thank you for sharing, professor.

@WeberAuto 4 жыл бұрын

Thank you very much

@anujoybardhan 3 жыл бұрын

Thank you sir, for your videos,I have seen them and feel they actually helped quite a lot in understanding exactly what it is inside a PHEV or EV. I am from India and work at a major OEM and there aren't a lot of EVs or even PHEVs around so as to see an opened up one. I have read, studied and even driven them but your videos with the vehicles opened up, explaining each subsystem really helps newbies grasp the tech better. Thank you for your videos👍👍👍

@scp3178 4 жыл бұрын

thank you for your detailled EV charging explanations. pretty cool.

@WeberAuto 4 жыл бұрын

Thank you!

@kendallringtail 4 жыл бұрын

@@WeberAuto Same. Bet many who own these vehicles do not know this much detail on the charging rates, plug pin layouts etc. Very thorough and informative!

@frederickwalker4450 4 жыл бұрын

Thank you. I am recommending this educational video to EVERY EV driver I know! As secretary of the West Virginia Electric Automobile Association, I shall distribute this recommendation to all our members.

@WeberAuto 4 жыл бұрын

Thank you very much!

@Cerberus984 3 ай бұрын

West Virginia has some lovely curvy roads to drive fast in an EV.. BUT, that charging availability is horrifying as I find it a travesty that my vehicles range estimator in my Chevrolet Bolt is determined by the last 50 miles. When you hit a 8% incline with a 5 miles length it will make your eyes bulge as you go "heck nah, impossible to make it." I know plug share will show you the inclines but how the heck do we not have access to precise power consumption over specific mountainous spans with every possible variables altering range documented.

@RogerAiken 4 жыл бұрын

Thank you for another excellent video. The gold standard in professional presentation on KZfaq.

@WeberAuto 4 жыл бұрын

Thank you

@TaipanTex 3 жыл бұрын

Have watched your videos regarding electric cars and think they are the absolute best out there. You cut through the extreme complexity of these vehicles and present them to the rest of us in a very understandable format. I've learned a lot by watching them and have had a large number of my questions answered. Thanks so much for these wonderful videos!

@WeberAuto 3 жыл бұрын

Thank you very much

@briankipkoech254 8 ай бұрын

@@WeberAuto can you share the SAE J1772 2017 document?

@electrolytics 4 жыл бұрын

How have I not seen this channel before? Wow! Thank you for these videos. Instant subscriber. Thank you.

@WeberAuto 4 жыл бұрын

Thank you!

@slam854 3 жыл бұрын

Thanks to You, Prof. Kelly, I have a 2021 Chevrolet Bolt parked in my garage. I purchased the car with a Level 2 charger by Webasto (TurboDX). My garage had 100 amp 240v service supplied from 200 amp distribution box via a buried cable to the garage breaker box. Car & charger are working perfectly. Had a nice road trip yesterday from Midvale to Antelope Island ranch & back. I averaged 4.7 mi/kw on the excursion. Love my new GM electric car with all its brilliant engineering. One pedal driving is my preferred operation mode.

@WeberAuto 3 жыл бұрын

Wow, 4.7mi/kw is very good. It is a great car! Thanks for watching

@EVpleb 4 жыл бұрын

I was never a car head and still do not consider myself one. But I have watched many of your Bolt videos from beginning to end. This is yet another great addition. Also, I can see that you are kindly responding to all of your comments, which is no small feat with the popularity of your channel. If I may, I would suggest pinning your corrections to the top of the comment feed. They're great to see and might also cut down on the number of repeat comments of people posting their own corrections. Thanks for the video and what you're doing to educate people.

@WeberAuto 4 жыл бұрын

Thank you very much! I pinned the corrections to the top of the comments.

@mfherreradi 4 жыл бұрын

Thank you professor, amazing explanation as usual.

@WeberAuto 4 жыл бұрын

Thank you!

@gabo42013 2 жыл бұрын

This was by far the most informative video I have ever had the pleasure of watching! Nice work and thank you!

@ob_gyn_inc 4 жыл бұрын

Its great to have you back Prof. Kelly! Great video as always.

@WeberAuto 4 жыл бұрын

Thank you!

Жыл бұрын

The must complete explanation related to this connectors I've found, thanks for the detailed explanation

@WeberAuto Жыл бұрын

Thank you

@mikea.2348 4 жыл бұрын

I'm studying for my ASE L3 and these videos are very helpful. THANK YOU!

@WeberAuto 4 жыл бұрын

Thank you, the new L3 exam has charging questions. Good luck on your exam.

@afype 3 жыл бұрын

Great video professor. Please continue with EV videos. They are so informative and enlightening.

@RB-jv6un 4 жыл бұрын

Excellent presentation. Thank you for the well reasoned approach to educating us instead of the normal KZfaq clutter.

@WeberAuto 4 жыл бұрын

Thank you

@mediaaccount8390 4 жыл бұрын

Amazing video! Good content density. Good pace. Relevant information. I learned a lot, and it was relaxing as a bonus.

@DBYNOE 4 жыл бұрын

Interesting that folks noticed the small speed increase, I use 1.5x playback speed for all but music videos and hadn't even noticed. Welcome back, glad your on the mend, your lessons haven't lost a step, Thx.

@WeberAuto 4 жыл бұрын

Thank you!

@thomasrpokorny 2 жыл бұрын

Great walkthrough. Didn’t feel like it was over my head but still super informative!

@erikstephens34 4 жыл бұрын

A good video. I enjoy your video's and glad to see you back in action. I have a few comments. As an engineer that works with electrical device certification I just want to point out that there are many NRTL's (Nationally recognized testing laboratories) that are governed by ANSI to do certifications in the US. Not just UL or ETL. There are many others such as CSA and FM for example. A CSAus certification is an ANSI recognized certification mark for the US. Also for L1 and L2 AC charging the EVSE cannot limit current to the car. Current is limited by the OBCM. The 1khz PWM signal from the EVSE tells the car how much current is available by the EVSE and the OBCM will restrict current flow based on that signal (if needed). The EVSE is really just a switch with built in ground fault protection and ground continuity detection. Thank you for this video I did learn a couple of things especially about the history of the standard.

@WeberAuto 4 жыл бұрын

Thank you and thanks for your feedback. I was not aware that there are more than UL and ETL EVSE certifications.

@erikstephens34 4 жыл бұрын

@@WeberAuto Of note here is a list of NRTL's for the US. Thought of note the scope of that testing agency needs to cover the standards used for EVSE's. Also in addition the US and Canadian standards for EVSE's are harmonized (joint standards). www.osha.gov/dts/otpca/nrtl/nrtllist.html

@tomgreene7942 2 жыл бұрын

That's what I was going to write, you saved me the trouble. I learned about other certified labs when talking to a above ground tank manufacturer that self certifies. He doesn't want to pay the big UL fee, so he started his own lab and got it certified. The government is not allowed to tell a buyer which company they must buy from, this includes certification labs. Great video, thank you!

@tomplaner1488 6 ай бұрын

Thank you for the most comprehensive explanation of sourcing power to your electric vehicle. Tom

@josephs8829 4 жыл бұрын

Wow , thanks so much for giving us an in depth clear understanding of the ev charging systems 👍

@WeberAuto 4 жыл бұрын

Thank you!

@xawnia 4 жыл бұрын

This was very calming to watch. Thanks for the detailed information! =)

@kulifrunsen 4 жыл бұрын

It is a pleasure to listen to this professor. Very knowledgeable. Great video !

@WeberAuto 4 жыл бұрын

Thank you!

@SvcGlobal 4 жыл бұрын

Thank you, excellent explanation about the levels and variety of charging devices.

@WeberAuto 4 жыл бұрын

Thank you!

@gr8fulbishop 10 ай бұрын

Amazing detail and concise. From a former professor to you, stellar presentation! Thanks.

@stevebollinger3463 4 жыл бұрын

Thank you so much. Now I have a new think to link to when trying to explain this to people. Great graphics too.

@WeberAuto 4 жыл бұрын

Thank you!

@harvis883 3 жыл бұрын

Thank you again. I learn so much from your sessions.

@WeberAuto 3 жыл бұрын

You are very welcome

@mikechiodetti6737 4 жыл бұрын

I have used the paddle type on the Nissan Leaf vehicles we had at the L.A. D.W.P yard. That was back around 2010/2014. That charger only charged the high voltage battery and not the 12 volt battery. Now that was the earlier Leaf's. I don't know about the later ones. Good thing the 12 battery was accessible from under the hood and not like the Prius in the back of the car. Course, opening the hood, then open the underhood fuse box and there was the bolt with a larger gauge wire that came from the 12 volt battery. Jump starting was accessible at that bolt and body ground. Thankyou for the info, good to see you back again!

@WeberAuto 4 жыл бұрын

Thank you for your feedback!

@alexnutcasio936 3 жыл бұрын

Thank you for this. Reminds me of people calling a Tesla wall connector ( EVSE) a charger. The charger ( on board module) is actually contained in the vehicle itself. The wall connector would be AC. Great stuff.

@WeberAuto 3 жыл бұрын

Thanks for watching

@vidznstuff1 4 жыл бұрын

Hey professor: might want to get ahead of the curve and have a brief video about the 2MW truck charging standard, given what's coming up from Tesla next week. Great video, this one - reminds us of the quality content we've been missing. Welcome back!

@WeberAuto 4 жыл бұрын

Thank you

@brianb-p6586 Жыл бұрын

Two years later, the nonsense about "what's coming up from Tesla next week" is hilarious. No truck is coming from Tesla, but ever-increasing voltage and current limits will be the reality of EV charging - of vehicles of various brands - for some time. As Prof. Kelly explained, the standards evolve to accommodate those changes.

@jeremyventurino9481 4 жыл бұрын

Watching this from my Model 3 Performance while charging. I remember when going to school at WSU I made the prediction that within 10 years we'd start seeing mass production electric cars... generally, Klein and Stuart disagreed. Along with the rest of the class. But I truly believed it was the next evolution of transportation. Fast forward 10 years and I'm driving that car and loving it. Tesla has up to 250KW available now. It's amazing.

@WeberAuto 4 жыл бұрын

That's awesome Jeremy! Good to hear from you.

@carlosli7602 Жыл бұрын

Thanks 🎉 it is so clear that I do understood the charging situation of the EV. Thanks a lot😊 謝謝你🎉

@WeberAuto Жыл бұрын

Glad it was helpful!

@georgemancini1910 2 жыл бұрын

Excellent presentation, I learned a LOT from you, and I thank you for that!

@JeffKelley 4 жыл бұрын

Love your videos! I always feel much more informed about my Bolt.

@WeberAuto 4 жыл бұрын

Thank you!

@hider1912 2 жыл бұрын

Very professional and easy to understand, thank you very much

@uqbajamshaid4912 3 жыл бұрын

Thank you professor. Very informative. You did a great job

@cache4pat 2 жыл бұрын

Thank you for putting this excellent video together & sharing your wisdom.

@gmcmurry 7 ай бұрын

THANK YOU -- I am so fortunate to be able to watch your EV videos. I have a 2014 Toyota Rav 4 EV (the one with the Tesla electrical system). I have learned so much from your videos. THANK YOU THANK YOU

@remilagace133 4 жыл бұрын

You have a small error. The control pilot signal is generated by the external charger, not by the vehicule. It’s used to tell the vehicule what is the maximum current that is supported by the external charger.

@WeberAuto 4 жыл бұрын

Thank you, I did get that backwards.

@000OO0OOO0 4 жыл бұрын

This is a bit more complicated and both of you are correct :) For AC charging, the EVSE signals to the vehicle the maximum current can supply, and the vehicle draws as much as it needs, but no more than the signaled maximum current. For DC charging, the vehicle signals the EVSE how much current it needs, and the EVSE adjusts its output to provide the requested current.

@johndkelly45 4 жыл бұрын

gt thank you! I need to read those two sections (AC and DC charging) of the document again.

@RubenKelevra 4 жыл бұрын

@@000OO0OOO0 that's correct. The car does not know how much power the DC charging station can provide, just tells the station what the battery can handle and checks that the charging station is within the limits. This leads to some issues, a Tesla Model 3 for example tries to heat up the battery even if it's able to receive the maximum charging power, the station can provide. This is currently wasting 7 kW of energy on low power stations and thus increase the charge time significantly.

@davidbeaulieu4815 4 жыл бұрын

@@RubenKelevra would heating the battery help with degredation or at that point not make a difference? Just curious Edit: like would that increase or decrease the plating effect over time not referring to dendrites growing through the battery.

@billanderson3192 Жыл бұрын

Well John, another informative video. I already knew a lot on PHEV, but I've learned a great deal more. Thank you!

@tomplaner1488 6 ай бұрын

Thank you for the most comprehensive explanation of sourcing charging systems to an EV.

@BingoBongoMan 3 жыл бұрын

competent, professional and covers all areas in this subject. The information flow in this video would clearly be too fast for a live session but perfect for online teaching where you can use the curser buttons to rewind or fast forward as you process the information. I wish all youtube videos could be didactical just like this, means being structural and prepared to transfer real information. Thanks a lot.

@WeberAuto 3 жыл бұрын

Thank you

@MarioDallaRiva 3 жыл бұрын

Always informative. Always worth my time. 👍🏻👏🏻

@sailingsolar 4 жыл бұрын

Great to see you back in the saddle. Participating in life.

@WeberAuto 4 жыл бұрын

Thank you!

@dmajumdar2059 4 жыл бұрын

Good lucid video, as always! Please consider making such a video on how mild hybrids (e.g. Jeep etorq system) work! That will be very interesting. Cheers!

@WeberAuto 4 жыл бұрын

Thank you, great idea

@sketchpro12 4 жыл бұрын

thanks for this! I've been driving 100% electric for 6 years now, and this helps explain a lot. Especially as EV's become more mainstream and people are asking me questions about all the new terms and acronyms that go with these. Some you need to know, and others are just good to know to understand what's happening. Although I think the "level 3" is a generic term used to explain to the EV virgins a speed rating, as you can get L1 and L2 at your house, but if you want faster you need a "L3" station (usually a DCFC or Supercharger) since that's what people really want to hear. Not "Level 2 slow" or "Level 2 fast" in Jo Public terms. :P

@WeberAuto 4 жыл бұрын

Thanks for your feedback. It is not that difficult, there are two levels of AC charge stations and two levels of DC charge stations.

@lawrencetaylor4101 4 жыл бұрын

To answer your last comment, yes this was worth my time. Thanks for this excellent presentation. I am just an interested owner but also a militant for electrifying our energy and transportation system there were some things that were beyond my pay grade. But you have such a matter of fact approach to explaining things that I feel that I can at least know what I'm talking about when I talk with different groups. I am promoting Windyday Concept which would work on the supply side of battery production. I want all cities in all countries to build worker coop factories for batteries, solar panels, wind & tide turbines, as well as training for EV mechanics as well as converting ICEV vehicles to electrical (trucks, buses, Wide Body 737-Max, etc.). BTW I just had a revelation last night since I talked with the two groups that are crusading for climate action. Both Fridays for Future and Extinction Rebellion have never supported Windyday and I wondered why. I also have noticed that there is disinformation on the internet provided by our "higher" educational institutes about all aspects of renewable energy. Did you know that batteries can't be recycled, they use child labor, they are full of toxic chemicals, and use too much fossil fuels to produce? You know that this is all false if you had followed this world before 2017. But now this is all the approved conversation that people have. The fossil fuel lobby has projected all of the faults of their products onto renewable energy so that your children crusaders hate the solution more than the problem. I hope that you stay true to your principles and don't become a whore for the oil lobby. I talked with one Swiss researcher that authored a paper negative on batteries, and he admitted that he felt ashamed for what he had done.

@WeberAuto 4 жыл бұрын

Thank you! Best wishes with your efforts.

@mrsureshkumarr-psgct7089 2 жыл бұрын

God bless you, sir, you were born on this earth as a great teacher.

@MYJ61 Жыл бұрын

Dr. Kelly, thank you! I found your talk fascinating and extremely informative.

@WeberAuto Жыл бұрын

Thank you

@briandaley5461 4 жыл бұрын

Great stuff, Thank you!!! I was wondering , could one feed an L2 cord set with say 300VDC @ 12 amps from Solar panels directly into a 2018 Chevy Volt -assuming they just rectify the 240 AC power upon entering the charge controller anyway?

@trey1531 3 жыл бұрын

There might be relays in the on board charger that are not rated for high voltage DC.

@russhill7151 4 жыл бұрын

All of your videos that I have watched on the Bolt are excellent and I have learned much thank you. When quoting from the NEC regarding the definition you mentioned "the bi-directional flow " I would take that to mean that you could, with the appropriate interface use your electric vehicle to operate external loads such as to provide power to your home during a power outage, again provided you have a transfer switch to isolate your home from the grid.

@sp1nrx 3 жыл бұрын

Yes. The Honda Fuel Cell Clarity is claimed to be able to do this (source: Honda Motor Co.). There should be a 350V inverter somewhere that would be able to connect the battery to house mains. Doing this is above my pay-grade and is only an opinion.

@mtoadmin 4 жыл бұрын

Excellent video as always ! Several things I didn’t know. Thanks

@WeberAuto 4 жыл бұрын

Thank you

@campanlucian9482 3 жыл бұрын

Thank you for this video > You realy know how to explain even complicated things

@Kwisatzhaderachgiveadogabone 4 жыл бұрын

Great to have you back Professor!

@WeberAuto 4 жыл бұрын

Thank you!

@georgemartin1436 4 жыл бұрын

Thanks, John. Due in part to your videos I bought a used Bolt Premier. AND since my job offers free Level 2 charging, it's basically a wash when comparing the gas I no longer need to buy and the car payment. If I were to also take the lack of needed maintenance, I'm ahead to some extent..

@WeberAuto 4 жыл бұрын

That is awesome!

@stevejordan7275 4 жыл бұрын

When petrol was $3.11/USgal, it cost me 15% as much money to charge my Leaf for my commute as it did to fuel my ICE car for the same commute. I suspect you are further ahead than you realise. Welcome to the EV world!

@georgemartin1436 4 жыл бұрын

@@stevejordan7275 Thanks. Actually I started with a no-payment Buick and then added a used Volt with a payment. I traded the Volt for the Bolt and since I charge for free at work, the math shows I'm basically driving a pretty new car for free. Additionally, my son needs a car so I can now give him the Buick. The only required service on these EV's is to change the tires and add washer fluid. Ok..I guess I proved you're right which was not what I had in mind originally...

@stevejordan7275 4 жыл бұрын

@@georgemartin1436 And wiper blades. After 100K km, I had to replace those. Also, because I have some degree of self-respect, I replaced the horn for $US16 (45 minutes and a screwdriver.) (Not the alcoholic kind.) The stock horn on the Leaf would be embarrassing on a clown car. kzfaq.info/get/bejne/hLZ5iJaC3dLJlac.html

@metricstormtrooper 4 жыл бұрын

Welcome back, edit All homes in many countries including Australia have 220/240volts as standard all through the house, I believe Europe and china are the same I charge my Ev from my heavy duty 15 amp socket I had installed for my welder and compressor. Its really great to see an new video from Weber Auto.ps. At my off grid beach house, I use a variable 6/8/10 amp charge controller at 6 amps so I do not draw to much from the House Batteries.

@WeberAuto 4 жыл бұрын

Thank you!

@erik_dk842 4 жыл бұрын

Additionally, most houses have 3-phase 400 volt + neutral.

@davidellenbaum1229 4 жыл бұрын

Thanks great info . Glad to see your back .

@WeberAuto 4 жыл бұрын

Thank you!

@michaelrhodes7885 4 жыл бұрын

Thanks Professor Kelly! I ACTUALLY think I understood that. 2019 Bolt EV owner

@WeberAuto 4 жыл бұрын

Thank you!

@juanthedad 4 жыл бұрын

Thanks. I have a 2016 chevy volt. And this info is useful. Always great knowing how things work and current way to us them / take care of them as well. Thing to look out for.

@WeberAuto 4 жыл бұрын

Thank you!

@pacoacosta7058 4 жыл бұрын

Amazing description John! Love the video!

@WeberAuto 4 жыл бұрын

Thank you!

@donzheng7068 Жыл бұрын

Thanks for the updated corrections. That makes this video perfect

@Pittsburghfix 3 жыл бұрын

Love the video and detailed explanation, thank you!

@Unknown-ki8yk 2 жыл бұрын

Great explanation. Thank you, Professor.

@cetGT3 2 жыл бұрын

Hi Sir, i have a question if you can kindly answer for me please, would it be possible to charge a Tesla model 3 from a two AC power outlet coupled into 1….giving theres an adaptor for this purpose…here in UK we have free on streets chargers ranging from 11-22kw…was wondering if a cable is available to make use of two chargers for faster charging for free! Tia.

@davidcozzi373 4 жыл бұрын

Great material! It’s great you gathered all of this information and shared it with world.

@WeberAuto 4 жыл бұрын

Thanks for your feedback.

@st_us 4 жыл бұрын

I was at a Seminar here in Germany Held by Bosch and the Tutor said, there's enough money to milk from Diesel engine industry in consumer vehicles that they think it'll still be Produced till 2029. It's really depressing to know it's all about the money and they care less about developing solutions for the Environment.

@WeberAuto 4 жыл бұрын

Thanks for your feedback.

@daveturner6612 4 жыл бұрын

People will soon start to see the buying a Gasoline powered car is buying a Stranded Asset.

@MrCarguy2 4 жыл бұрын

Modern diesel vehicles have top notch emissions equipment. Matter of fact some actually polute less than comparable gasoline engines

@daveturner6612 4 жыл бұрын

It's Ders Mane That is, politely, a load of crap. That is a lie from the Scumbags who still flog this garbage, a desperate falsehood to stay alive. While they shovelled us BS about CO, hoping that horrible NO numbers wouldn't be noticed, all Diesel engines emit particulates in the 2.5 microns size range, smaller than a HEPA can remove. Diesel is, in no uncertain terms, a Turd that cannot be polished, in spite of the string of lies they continue to push. No matter, none of that ancient crappy technology will be permitted in cities soon.

@thankyouforyourcompliance7386 4 жыл бұрын

@@MrCarguy2 well, it always boils down to what you compare it to.

@darshanpatel9006 3 жыл бұрын

Thank you for making this video. It's very informative.

@CyclingNeko 3 ай бұрын

is there any voltage standard for DC charging? I mean, AC charging will have += 220 volts (at least in my country) for single phase AC. So the vehicle can be set to accept 220 volts or more. Then converted into DC. But what about DC? Is there any standard for the DC voltage? IF the contact rating for DC level 1 is 80A, it mean the default voltage should be 600 volts and every vehicle that accept DC charging level 1 should accept DC 600 voltages system? Or the vehicle could asks the amount of voltage to the charging station?

@MisterMoncivais 2 жыл бұрын

Thank you! Learned A LOT with this video.

@nuriddinkhodjahmedov 3 жыл бұрын

thank you professor for your the best lessons and these all lessons gave me the knowledges

@Good-Enuff-Garage 2 жыл бұрын

this was Superb ! thank you so much professor

@muhammadan-nasdzikrullahbi9769 8 ай бұрын

Hi prof i would like to ask , you said that for dc charger , the car will determine how much the current needs right ? So that means as the developer of the charger , are we not able to control the amount of current feeds into the car ? Because i believe for AC it uses pwm to tell the on board charger max current it can provide and the on board charger will charge the car up to that limit but for dc charger the car itself is requesting the amount of current it needs, therefore as the developer of the charger are we not able to control the amount of current feed into the car for dc charger ? If we cannot control then how can we prevent from tripping due to overload occurs ? Because it is the car that requesting and determine the amount of current it needs and not the charger determine ? Thank you very much prof , i hope you can answer my question and i really appreciate it

@graememudie7921 4 жыл бұрын

Excellent explanation of the charging used in EVs always I’d find it most confusing until now 👍

@WeberAuto 4 жыл бұрын

Thank you!

@Maltanx 4 жыл бұрын

I've still haven't finished the video, but I already know that, as always, it will be full of great informations, so thank you in advice! However, I'm writing because there's something I noticed: is it just me or the video is sped up? Edit: Now I finished watching it, great video as usual!

@WeberAuto 4 жыл бұрын

Thanks, yes I sped it up 15% because I thought I was talking too slow. I won’t do that anymore.

@Maltanx 4 жыл бұрын

@@WeberAuto Thanks for the answer! And let me tell you that your normal voice is calm, relaxing and very easy to follow. It's one of the many reasons that people get so into your explanations that they watch 2 hours long videos without even noticing how much time has passed!

@polik971 4 жыл бұрын

I was just going to say the same , or nearly. Our professor is always on top on how to explain really messy things like that. Oh , BTW I'm in Italy where PHEV are really really rare apart from very polluted cities. I'm following the professor from early Prius transmission explanation and so I had the chance of educate some around here about the "ev car next day" that the media all are talking about

@Maltanx 4 жыл бұрын

@@polik971 Fa piacere sapere che c'è qualche altro italiano che segue il canale, nonostante la brutta situazione delle elettriche in Italia!

@paulaxford6754 4 жыл бұрын

@@WeberAuto actually I like the faster pace but in this case I also know most of the material.

@cwisfarouk 7 ай бұрын

Great video. Thanks for all the explanations. Excellent training video.

@ilkosj Жыл бұрын

I just got Ford Transit EV and I would like to install solar modules and 120Vac inverter (because is cheaper than 240Vac inverter) to provide power to the van while I'm driving or parked. What do I need to be aware of, to make this possible? I want to tap to the wires of the plug on the vehicle between the plug and Charger or BMS in the vehicle. The dealer couldn't give me enough info. Please advise.

@DanBurgaud 4 ай бұрын

Very clear, clean, precise explanation. 👍👍👍

@ammaryam16 4 жыл бұрын

Thank you very much for this informative video. I have a question, is it possible to change my 2018 Volt OBCM with a 2019 version which is double the speed of charge? Thank you, Ammar

@WeberAuto 4 жыл бұрын

I do not think so. Thank you!

@EVAddicted 4 жыл бұрын

Always great and very educational videos!!

@WeberAuto 4 жыл бұрын

Thank you!

@barney2001 4 жыл бұрын

Quick addition. As well as UL and Intertek, CSA also approves equipment for use in Canada and the United States. Like the UL symbol, there are small letters either before and/or after covering the country approval. It's all about different testing labs testing equipment to a particular country's standards. When UL tests equipment to Canadian standards, the label will also show ULc, and likewise when CSA tests equipment to US standards, they add a small us after the logo. Manufacturers then only have to go through one testing agency to obtain approval for both countries. Over a decade ago, both CSA and UL were quite slow, expensive and difficult to work with. Intertek came along and with their approved testing facilities they took a lot of the business away. I believe UL and CSA cleaned up their act when faced with the competition.

@tracymathews4122 Жыл бұрын

Excellent video! I learn so much every time I see one of your videos! I'm not certain I agree with your statement at 12:08 about the PWM being controlled by the vehicle, 12:11 about the PWM signal being "read by the off-board charger, and 12:18 about the current "being supplied to the vehicle". I agree with everything you said up to that point. I hope I'm not splitting hairs, but my understanding is that the PWM (in that context) is modulated by the EVSE (the off-board Electric Vehicle Service Equipment) to tell the On-board charger how much current is available to be drawn by the car's on-board charger. So the EVSE may be limited to some current other than the 32 Amps that a 2017 Chevrolet Bolt could hypothetically pull (draw) from the EVSE. Some EVSE's can be programmed via a push-button to deliver less current if desired. I believe they modulate the PWM to tell the on-board charger to limit the amount of current it is allowed to pull or draw from the EVSE. The car ultimately determines how much current is "being supplied to the vehicle", based upon the PWM modulation established by the EVSE. Please let me know if my understanding is incorrect or incomplete. I thoroughly enjoy your professional manner, Professor! Please "Kee 'em coming"!

@tracymathews4122 Жыл бұрын

Oops! I just saw that you addressed my concerns 3 years ago!! ROFL !!!

@ricardofelippe834 4 жыл бұрын

Thank you again Prof. After watching this video we need to change the content in our slides.

@WeberAuto 4 жыл бұрын

Thank you

@chasa4347 4 жыл бұрын

Great video! I attended Weber State when it was still a college, might have to take some current classes and update my skills!

@WeberAuto 4 жыл бұрын

Thank you, we have update classes here www.weber.edu/evtraining

@twig3288 4 жыл бұрын

I'm thinking of trying to future proof my EV charger installation. Domestic EV charger installers in the UK are currently specifying 6mm² 30A cable for the supply from the distribution board. Is it likely that chargers will be requiring higher capacity supply cables in the foreseeable future, and if so what would be a likely size 10mm², 16mm²?

@WeberAuto 4 жыл бұрын

Good question. Bigger sizes will get you further into the future. Best wishes.

@noneofabove5586 2 жыл бұрын

Excellent description. Thank you

@ronaldgarrison8478 4 жыл бұрын

Excellent. This really clarified a bunch of things for me.

@WeberAuto 4 жыл бұрын

Thank you!

@maaaak51 Жыл бұрын

Question? I see some people using the 120 volt charger that comes with the Rav4 Prime to charge with 240 volts by wiring a 240 volt plug onto the 120 volt wiring. While this seems to work for them I wonder about long term reliability. Any thoughts? I wonder if the same charger is used in Europe where normal plugs are 240 volts and Toyota just installs 240 volt European plugs onto the same charger used in the U.S.?

@PedroRafael 4 жыл бұрын

Very informative and detailed. Thank you

@WeberAuto 4 жыл бұрын

Thank you

@stairstoeternity 2 жыл бұрын

Another great video.Thank you professor!

@VTACTechnical 2 жыл бұрын

excellent video john as always!

@iRMacMan 2 жыл бұрын

Interesting info on charging. Thank you. I think though, that in common usage, the terms Level 1, Level 2 and Level 3 are going to be around for awhile. I own a Hyundai Kona EV. It charges from three sources: 110 V wall plug (about 3 kWh), 220 V home charger (around 7.4 kWh) and commercial DC chargers which start at 43 Kwh and drop as charge progresses, down to around 20 kWh as the 80% charge level is approached. When discussing charging with other EV owners, I notice these three charging categories are commonly referred to in terms of Level 1, 2, and 3. Even Tesla owners seem to fall back on the 1 - 3 category reference, though I believe they have an even higher so-called "level 4" rate of charge. In common terminology, crawler tractors are referred to as "Cats". It's not accurate because several companies beside Caterpillar manufacture crawler tractors. But the term "Cat" is deeply ingrained in our colloquial speech. I suspect that is happening with EV charging levels too.

@DonMillerNC 4 жыл бұрын

Professor Kelly welcome back and thanks for the informative video. A couple years ago I read a document (I don't remember which) that stated the CCS standard prohibits adaptors being used. In your reading of the J1772 DCFC standards did come across anything like that? Tesla for Europe has a CCS to Type 2 adapter, but in the USA they've not offered a CCS to proprietary North America Tesla plug.

@WeberAuto 4 жыл бұрын

Thank you, I have not seen one either.