Tata Nexon EV Battery - Liquid Cooling & Cell Balancing #2: Chat with Anand Kulkarni, Tata Motors
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- Опубліковано 23 жов 2020
- The Tata Nexon EV Electric SUV was launched earlier this year. The car as well as
Tata’s holistic EV vision has been well received by the EV community.
In this 6 part video series, we speak to the Vice President of the Passenger Electric Vehicles Division at Tata Motors, Mr Anand Kulkarni.
In this episode, we talk about Liquid Cooling & Cell Balancing in the Nexon battery pack. We also ask if a faster rated onboard charger was possible.
nexonev.tatamotors.com
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Tag words:
Tata Nexon EV
Liquid Cooling
Cell Balancing
Onboard Charger
Tata Electric Car
Tata Nexon Electric Car
Anand Kulkarni - Авто та транспорт
Watch Part 1
We talk about Tata Universe
ua-cam.com/video/oDw2WyQNvNw/v-deo.html
Watch Part 3
We talk modular battery packs and battery swapping is possible for the Nexon EV.
ua-cam.com/video/EODjZwZtjGk/v-deo.html
Part 4 - Coming on Sunday evening
We talk about software updates to drivetrain on the Nexon EV.
Part 5 - Coming on Sunday evening
We talk about the right to repair of electronic components for the Nexon EV.
Part 6 - Coming on Sunday evening
We take EV Community questions on Nexon EV and Tata's EV strategy
Man, here's the man with such a great knowledge about the product, I would love to have conversation with him on any science topic.
This is the kind of video we would like to see. Good job covering this technical details
One of the best podcast (chat) on this channel!
Hoping that this channel brings more such content related to Technical EV content!
Good to see a person with a sound technical understanding leading the Tata electric team.
Sounds good when person knows more than system...great to here from him....proud owner of Nexon EV...
But in another interaction he said 7.2 kW charger is possible.
If it is not there then it is not a proper EV.
He also said it will accept 50 kw but they advertise only 25 kw time.
These things have to be clarified, I want a future proof product not a compromise.
This is exactly why Nano failed.
Thanks a lot for asking the 3.2kw question - my decision has been solely swayed away from buying a nexon because of slower charging. One thing that I would like to point out that 32amps of current is possible on a single phase domestic connection - I did confirm this with tata power delhi. That being said, 32amps * 240 volts = 7.2kw of charging speed is still possible. Reducing costs is a different ballgame altogether.
Please clarify this, in another interaction he said 7.2 kw is possible and also 50 kw. If indeed its not there then what's the point. If someone suddenly decides to go out of town and it's not charged then he should first run to a fast charger, with a 7.2 kw charger one can charge up by the time he gets ready to leave.
@@tajendrasinghrathore As per him, if you need a top-up real quick you should head to a DC charger. Also, DC charging speeds are also 25kw which is half of what MG or Kona can take.
Good point on the single phase 7.2 kW.
They wanted every apartment owner to not have hassles of installing another meter. As currently most meters are rated at 5kW.
That is what they told us. It’s a conservative design.
Maybe the future models and next versions of Nexon EV will go away with this limitation?
@@pluginIndia I believe you are referring to the sanctioned load on a meter. That too is dynamic i.e. driven by a 3 month average because that's more cost efficient for the discom than keeping a fixed load. Also, a if it was a fixed load it would trip the whole line if somebody pulled more - so that's always dynamic.
Unless we need a 11kw AC charger, nobody needs a 3phase connection. Look at how MG, Brightblu and Delta are providing chargers which pull 32amps even from a single phase connection.
@@asijamohit Hi, He was in another panel discussion with pan india owners which is on UA-cam 3hr long.
Where he told an owner that they can provide 7.2 ke home charger.
In another interaction on motor octane he said it can charge at 50kw.
Is any new upgraded version of nexon coming?
Is there chance nexon will come with more option of battery pack? 40 kw or like that
sir what happens when driver doesn't turn on AC ?Will battery pack stilled be cooled ?
How to connect with Mr. Anand kulkarni sir. I have problems with changing of my nexon ev.
Unless you have the option of up gradation it's difficult for lot of people like us...boz technology keeps changing..and definitely there will b better charging technologies coming up..u can't expect to invest on an EV and next year it becomes obsolete..u have to have an buy back arrangement to back the customer ..if u do this..i am sure u will have a lot of buyers lining up for EV"s..give it a thought
Charger also need cooling and I ( working in Emerson CR) evaluating this for india charging stations. Typical standalone HVAC system help to maintaining Charing stations temperatures.
Y is the ground clearance different from Nexon ev and nexon
good
I have a question here.. When we say battery don't like more than 45 degree.. So suppose car is fully charged and is standing in sunlight wherein the temperature is more than 45 degree... So is it possible switch on the AC automatically to cool the battery... And when we come to drive it, we see the battery is down by some percentage
The remote AC facility exists in the car
In Teslas, during fast charge, they activate full battery cooling to maintain high charging speed. The charger is recognised by the car itself, and the BMS in the car activates the battery cooling. I wonder if the same could be applied to Nexon via OTA updates
Let’s put your suggestion to RnD team.
I think that facility will require a microprocessor based control, so, chip+ cost
@@sansabh the BMS already has chips, and lot of them for charging monitoring and vehicle control (gear shifter, accelerate by wire and brake by wire)
In tesla they also heat up battery pack if car is in cold xlimate : ) Their technology is far better then our . Tesla and Space X is xurrently working 20 Years from rest of the world
In Tata Nexon ev which battery used means Exide or Amara Raja or else
I think they are using Eveready Battery.
what type of li ion battery is used is it lfp battery
Yes
We need TATA NANO EV or Tiago Ev for city with 100 to 130kmts range which is best for both TATA and consumers due to low cost of ownership and large sales
Hope I will get it from TATA
That question was “answered” in the community questions video.
wait for 3 months. eKUV will be launched. with same specification as you mentioned
tha price drop for 100km won't be of much a difference. because the remaining system has to be constant
tata ev is game changer for tata motors. because ev have less parts that why it required less service. today service is not good in tata that why many dont buy. but ev change tata motors because that require less service..
Which are all parts are from China?
We know from ARAI certificate that the motor is from China.
Battery is made here by Tata Autocomp systems.
Nice video... Sir Nexon EV is just going to get popular.. Then why to increase the prices soo soon.. You can have many reasons to increase the price. But the sticker price is already soo high. So increasing the price soo soon is very bad idea... Very very disappointed with this decision... I hope you really want that your ev ppls will buy. Not like other big companies who just make EV for show off, But actually more interested in selling ICE.
Really?
How much is it now?
@@pluginIndia they have increased price of xm and xz by 26k ... now the revised price is 14.25lk &15.25lk respectively however xz lux price remain same.
Thanks.
Yes olright but sir you Tata Battery iss brand but claim by to again to again
Hyundai Kona gives both charging options, 7.4 and 2.8kW. You are just escaping. To make competitive in price Tata has compromised on many things including safety.
Tata dealers suck, specially Puneet Automobile, Mumbai, are scoundrels. Complaints are not attended to, even the car is not washed before handing over to customer! Tata engineers assigned for EVs, especially in my city, is not responding. Maybe they feel they are Ratan Tata. Literally hopeless.
I had to get my EV towed 3 times to workshop to make Tata accept that the battery is defective. Half of my money saved went in car hires done during this period.
You will feel the steering shaft, by your feet, it doesn't have the enclosure, reminds me of the old Fiat and Ambassador cars!
For the mileage Tata claims, it has to be run as bullock cart.
There App is half of the time not connecting, and they are charging some ₹:3500/- per annum only for the App and data!
Car service costs me ₹:1/- per KM, which is same as ICE cars. I was told that service costs would be much less than ICE cars. Tata has the App for service locations and cost, called "TMSC", but to my surprise the service cost function does not work!
Service cycle is 7500KMs which I feel should be increased to 15000KMs, since there is not much in EVs to service. Tata has kept this 7500KMs for dealers to earn their livelihood!
I doubt Tata has learnt anything by making Mercedes cars!
I have gone beyond my budget to buy this car only to ESC (experience, save and conserve...) had some more money, would have definitely gone for Hyundai Kona.
I’m surprised nobody saw this comment or liked it! All these issues are faced by many Nexon EV customers and they’re roaming around dealerships without any permanent fix provided by Tata Motors.
This is not liquid cooling. It's using a liquid gel as a heat conductor. It is still a passively cooled battery pack, just more filled up with junk to transmit heat away. Actual cooling that creates very long lasting batteries needs active cooling either by an A/C compressor (which isn't perfect) or by having integrated cooling in between the modules/cells to provide effective and even temperate control.
But, as he mentioned in the video this uses AC compressor to pass the coolant(in this case water), I think you were misled by the graphics...those were not gels, but pipes.. I guess. So, it's active cooling indeed.
Thanks for clarifying. Yes. That graphic was misleading.