Tesla Cybertruck's Power Converter capable of 800V
ฝัง
- เผยแพร่เมื่อ 11 ธ.ค. 2023
- Sandy talks to Drew Baglino: Head of Powertrain and Energy, and Pete Bannon: Head of Low Voltage about the HV Power Converter and 48V Body Module.
Full Interview: • Tesla Cybertruck DEEP ...
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#tesla #elonmusk #cybertruck - ยานยนต์และพาหนะ
Mounting the circuit between the inside and outside of the firewall to avoid through holes and off-board grommeted wiring is pure genius. Additionally that PCS with planar magnetics is a electrical engineer's wet dream.
I've built a few power conversion boards for motor drives and I didn't even realize that "planar magnetics" was a thing. I had to look this up. Here's the way to think about this: Tesla engineers are so good they don't just assemble parts from a supply catalog to make their devices, they literally do the engineering to replace a $3.00 part and make it 2x more efficient and 4x smaller. NO COMPANY WILL EVER CATCH TESLA when it comes to system efficiency or margins. These guys are writing the textbook on next gen power electronics.
@@jhagen4850 China will steal it
@@jhagen4850 not very familiar with electrical components, mind explaining what the planer magnetics are and what is the significance of what tesla is doing?
@@Alhussainba Search the Internet for "through hole inductor" or "through hole transformer." These are the devices you see on almost every circuit board for household electronics. These are usually the biggest items on a circuit board. They're honestly pretty expensive too when you start pricing out components for scale production. What Tesla is doing is using planar traces on a single layer of what I suspect is a multi-layer board and building their inductors and/or transformers right into the board. The idea is here is 1) you eliminate all through hole components so your boards are made 100% with a reflow process (research reflow SMDs for videos on how this works) which makes the boards cheaper to assemble. and 2) I'm assuming you can get higher precision values using printed coils versus ones that must be physically wound. Tighter tolerances are always good. It's amazing to think how this company started out years ago with the Model S using through hole FETs (I think they used TO-220 package transistors...just a lot of them).
@@Alhussainba It means they don't use external wires to build magnetics - wires are circuits on the pcb
Munro: “Now everybody’s done it (adopted the NACS standard), except Volkswagen….”
Drew Baglino: “Oh well, that domino will fall eventually…😏”
Germany is famously slow to change...
Because of electrify america 3heads
I heard as of Today VW is in talks, the only that isn't is Toyota
What are they waiting for?!
@@digitalbladeca as usual, considering the added costs to their processes to make the change. that and like a billion meetings to confirm that they are confirming that they will investigate the idea.
Ultimately risk adverse OEMs take too long asking themselves if it's absolutely the way to go. Rather than realizing that they can just do the change, see if it works, and go back if needed.
Thanks to everyone for this excellent video ! Most impressive !
Thanks again!
@@MunroLive THIS IS NOTHING MORE THAN A RIP OFF 1ST GEN HONDA RIDGELINE WITH BOLTED ON GIGACASTING BED AND CAB ONE PIECE=RIP OFF 1ST GEN RIDGELINE, SECOND GEN RIDGELINE IS UNIQUE ITS A UNIBODY ON FRAME.
That 400V or 800V switch is genius. Nicely done.
Far simpler, better then a up converter from 400V to 800V, plus the full capacity of the charging station can be used.
So the pack is still just around 400v but it now has two parts that are able to be connected in series or parallel on demand by that control board.
Amazing.
@@grettirgrattmards2348
Also saves the huge cost an undersized up converter. Also near 100% efficiency while the up converter around 95%, the 5% goes up as heat which you pay for..
Same concept is being used by DeWalt in their battery packs, so it’s nothing new.
Yes, GM thought so too... when they did it for the Ultium platform a few years ago. A GMC Hummer EV, for instance, works this way.
Drew is so so proud of that power converter module!!
Although, I rather wish they didn't show the diagram at 8:40. Let others figure it out for themselves instead of showing your homework. (yeah, i know it's not showing any component detail, but it's still a head-start for copy-cat companies )
@@goldreverreexactly
@@goldreverrelol... very funny..
The secret of parallel VS series is out!
I’m still curious could they have made the 2 sides, each 400V charge independently on existing SuC, possible anyone has thoughts? Might they have been able to increase charge throughput on existing hardware, charge port on each side until 800V is ubiquitous?@@goldreverre
And so he should be 🙂
Love how they just own the OMFG window smash with those T shirts 😂. Legends, all of them!
absolutely amazing integration, well done Tesla
"I can hardly wait to see who comes in second!" LOL
Savagery
Sandy says Tesla will be second to BYD
@@qwazy0158BYD isn't doing innovation like we're seeing on the CT. They're doing good refinement, but it's up to others to blaze the trail. This is what Tesla is great at.
@ColinFox oh I agree with you. Sandy is looking at the quantity of BYD, when I think he should be looking at the quality of Tesla. Imo Tesla will ramp and launch past BYD with superior products, but government will ensure BYD wins home territory long term.
Who comes in second? Europeans have been using 48v systems for 11yrs now, and several manufacturers have 800v
Awesome Sandy Quote Of The Video - "You guys pave the way and everybody else comes in second" 3:50
The firewall PCB is an insanely good idea, jus avoid doing any water seals on the cables or connectors and use the PCB for that!
Of course the firewall concept is in ice vehicle thing not sure you can really call that appropriately a firewall for an EV ... More like a frunk bulkhead.
You're right, it's not a firewall. The tesla engineer called it the wet side/dry side, so it's the transition from the outside to the cabin.
@@janmessek1826 eh poteto's potato's, firewall is the most understandable way of getting the point across so it's the word I use
A teardown with Tesla! What can we ask for more!
My breaking melted when the Drew said the CT can configure itself from 400v to 800v
nothing special.
@@alanmay7929
Thank you for taking time from your busy day to come by and tell us that.
GM did it for the Hummer but in a more complex method for 800V charging and 400V for normal usage. Were not able to have components run off 800V like this.
@@petepetess if I understand correctly, it configure itself to 800V only for charging and when you finish and go drive it goes back to 400V. That's one way of doing it. I google it and saw some info about it. Thanks for sharing
I did a nice teardown of the Hummer one when with Jullian when still at Munro.
@@JeromeDemers
This guy in black shirt with glasses is Drew Baglino, he resigned yesterday. 😢18 years in the company let that sink in.
7:07 "We're scaling up the regenerative braking power based on the mass that we sense" Interesting. I'd like to hear more about that.
Major respect for Sandy and to the Tesla Enginneering elite with openly sharing this technology...lets hope the others will come to the mark instead of whining about it!
I love that they are giving these insights to sandy and thus to us :)
What a tremendous opportunity for Sandy to learn from some of the smartest minds in EV engineering. As an EE about same age as Sandy, I was blown away with their circuitry. Hopefully Tesla brings most of this tech to model S so I’m compelled to buy a 3rd one.
lool.............
Yep. It was clear Sandy was clueless about the innovation in front of him. He’s a nuts and bolts guy.
@@46I37 “is that a though hole…?”, while pinpointing towards an SMD.
you can tell the engineers are proud of it. great to see that
I appreciate all of this information, thanks all for this video!!
I will never buy this truck but I like many of the features offered- vehicle to load, range extender, high towing capacity. Hopefully these items make their way into other cars, like model Y/3.
If we’re going to prioritize more cars over more range, please give us more superchargers in middle America 🙏🏼
Charge at home
@@Sal3600
I think they mean while transiting across. It's a big area with fewer big cities, except Texas.. But farther north its more empty.
literaly the dumbest idea ever because they know EVs are useless uncapable vehicles only good at 0-60 right! a 30 years old toyota hilux is way more capable than any of those EVs crap and they are literaly in use daily in very harsch environments around the world.
@@Sal3600not everyone has the ability to charge at home please use your brain! mot everyone has the same conditions
the supercharger map is pretty fleshed out in everywhere except maybe Montana Idaho, Wyoming and the Dakotas (most SC's are only on interstates)
The fact that the battery pack can be split up to handle 400v charging is really interesting. Also impressive that all the HV stuff can work on 800 and 400 volts
0:25 The blue connector probably is a Rosenberger H-MTD straight watertight, customized variant. The cable usually is STP.
5:15 only now absorbed this part better. 11.5kw at this size of a device is incredible. 6KW solar inverters are at least 4 times larger and heavier than this.
Solar inverters are not typically water cooled.
imagine if they take some of this engineering into their solar products
I agree, that module is incredibly impressive, I'd love a deeper dive as an engineer.
@@edc1569 solar inverters use heatsinks and fans but that does not account for the huge size. I think the reason this Tesla inverter uses the latest and expensive parts like silicon carbide and inductors that I haven't seen before and the 800V which needs less copper. check this video of the latest solar inverter. th-cam.com/video/6alau_7t5NM/w-d-xo.htmlsi=f6us8P1Uou1fvElK&t=474
@@t3hpwninat0r they do. the latest Powerwalls are pretty compact than competition and all their products that has an inverter are water cooled. However, this cybertruck inrverter for outlets or external power is on another level.
This is a wonderful informative video. Thanks as always
“What else is cool?”
“Oh, wanna see me do a backflip?”
♥👍😎👏🚀 *Sandy is a gem!* These latest videos illustrate why Tesla's _adroit_ engineering is decades ahead of the entire auto industry.
Best design i saw in commercial application with planar magnetics and deliver 11.5KW Bidirectional capability.
This series of clips is perfect. I'll tell you why. The detail in this, being top notch, is to stop Sandy ripping those CTs when he gets them delivered. Nevertheless what great series and in parallel with the release. I've got so many CTs on my feed it's like you boys are like way ahead on social media, probably to the power 10 . over ;-0
Brilliant engineering!
not really
@@alanmay7929
Thank you for taking time from your busy day to come by and tell us that. Since you don't understand engineering.
@@universeisundernoobligatio3283 ok Einstein thankyou for the reply i guess.....
The Electrical Engineering alone has sold me.
Contractors working in remote locations and campers could benefit from the dual-motor cybertruck with the range extender. Get where you're going and have plenty of power to use there, then drive home or somewhere to charge.
And you can buy it on the company account, it will be a deductible and you'll still get some tax credit
@@grettirgrattmards2348buy the truck without addons first to get IRA credit, then get range extender added separately and both will be deductibles
Where would the contractor keep their stuff, though? Very trailer dependent then.
I LOVE to go camping with a good EV truck, but the EVs we get don't seem to allow for a 5th wheel hitch. Waste of the nice weight. A trailer with good solar panel array on the roof and roll-out sunshade would be great to recharge the driver battery during remote camping. 5 kW solar isn't impossible with a serious trailer. And 5th wheel is the way to go, especially when remote/tricky road surfaces.
It’d be even better if there was a midgate for camping, boardsports or contractor utility. Airconditioned, pass through access and secure vault storage
even woth the range extender they are not going to remote places not even without towing lol!!!
"Tesla should start doing advertisement". What the hell is all this then. This is 1000x better than a stupid ad on cable TV.
Great video thank you!
Good technical info. for most non electrical engineers❤👍
Tesla is giving you all the info you need, no more need to disassemble the entire cybertruck, just drive the truck.
That thing is a freaking beast. Worth the Cybertruck cost alone haha
very enlightening, thank you.
You're very welcome
Thank you!
I have to wonder if the person who came up with the 400V and 800V switch flies large scale R/C helicopters. To fly my 600 class helicopter, I took two 25V packs and hooked them up in series to fly at 50V for the traction battery packs, but then parallel charge my packs at 25V on the charger. So I was doing exactly what is going on here over a decade ago, except with 25V battery packs for a 50V R/C helicopter and a 25V charger. (Actually, the charger could do over 30V, but I was using 6S packs, not the max of 8S the charger could do while I needed 12S to get flight voltage). Then I brought a large 8S, 30V capable LFP battery to the flying field to recharge the smaller 25V flight packs with. The charger was primarily a buck-boost converter, so it took the ~26V (the flat part of the LFP battery curve) and converted it into 21 - 25V to charge the packs in parallel so I could get multiple flights worth of packs ready all at once. This created almost no heat on the charger as it was basically straight power across; only needing to kick on the cooling fans when balancing the packs.
I suppose this brings up another point, why doesn't Tesla make a +-200V for 400V total home power system? The idea being 200V is something you can run over home wiring as most home wiring is rated for at least 300V per conductor and DC with power electronics is more efficient than AC. So you take 400V off of solar panels with the cells wired in series and basically directly dump it into a stationary 400V battery system. When you go to charge up your Tesla vehicle at home, you basically just dump the power from your DC home power into the car or truck with a simple buck-boost converter like the main part of my hobby charger. If you need some additional backup power, the DC power just flows back out of your car or truck through the buck-boost converter. Then you also have say a Telsa heat pump for the home, something Elon Musk has played around with the idea of making because home air conditioners tend to suck in terms of power consumption, and that heat pump runs off of 400V DC as well while using efficient Tesla motor tech to drive the compressor. So all of your really high powered stuff uses a common 400V DC bus essentially. They already make 400V DC power supplies for your computer, so you can run say your high-end gaming PC with say a future ridiculous Nvidia 5090 Ti Extreme OC Water Cooled by Fire Hydrant Edition and do the power delivery efficiently and without popping the breaker. (Granted DC power needs DC specific breakers.) For any remaining AC stuff, you can both have an inverter for that or just produce the power from the inverter in the Cybertruck.
Yes using contractors to switch from parallel or series 400V/800V charging is simple, uses the full charger capacity and you don't need a complex high power DC/DC converter
Just as you said it, it’s not a new idea, indeed. Power tools batteries work the same way, in order to use the same old chargers.
I find it interesting that they're using a switched capacitor power supply to bridge the 12 and 48 volt power busses. I'd have expected a forward converter with a transformer and synchronous rectification. That many ceramic capacitors are super expensive in small quantities, Tesla must get them at a great price.
What are you on? LMCC's are super cheap in volumes companies buy. single digit cents a piece! If you're buying 5 you're not paying for the components, you're paying to have someone cut the tape and count the components.
For safety, galvanic isolation is required on most 48V to 12V conversions.
But if galvanic isolation is there why limit to 48V, get a 400V/800V flyback is super cheap and reliable.
Really curious about this Etherloop, is it the same DSL/Ethernet protocol developed by Nortel 20 years ago? What advantages does it have over standardised Automotive Ethernet protocols such as 10BASE-T1S?
There is a lot of big boy electrical engineering going on in that crazy truck.
this 9 min video was 10000x more interesting than those 5 hrs of streaming nonsense.
Waaait one minute. With a dead simple DPDT 800 to 400 V converter switch, they would need to ensure the two halves of the battery are precisely the same voltage before engaging 400V parallel mode. For aged batteries this would be quite difficult/impossible. How do they handle that? Are they regulating each battery half independently with own control modules? Are they not charging the two halves in simple parallel?
I doubt this was overlooked on their part. They actually did the engineering to quantify how often and how much they could go out of balance. They designed pack so cells see almost exact same conditions so do not charge/discharge differently and should age similarly. Also, did not design for End of Life or assumed had bad cell quality where get different aging characteristics. Also in case these were not balanced, still can charge at 800V.
Even in unlikely scenario that all cells in one half were at an average of 20mV different than the other pack. Assuming 96s6p per half with 5 mOhm cell resistance this is 1920 mV / 80 mOhms = 24 Amps.
since the battery can already sustain 450kW at 800V, all the wiring can continuously sustain 550+ Amps - the inrush cell imbalance current cannot exceed that for any meaningful amount of time - seeing that all these cells are continuously working together, aging together, being balanced together - and if you have a cell that's significantly higher or lower than the others, that would be sufficient reason for the BMS to be doing something about it (such as warnings, alarms, limiting current, preventing paralleling, etc...)
The battery already consists of many parallel strings of cells (96 for 400V) that need to be balanced all the time. They can just keep them balanced as if the pack was a 400V pack even when running in the 800V configuration.
Excellent question, the onboard charger is actually made from two complete separate circuits, one for each battery bank, ther are bidirectional too , so they will keep two banks well balanced by discharging one and charging the other one.
Even they change to 48V supply to the board, if there is a 48V-16V converter on the board, the thermal loss saving is mostly at the power cords, since less current at 48 with giver power. What helped getting rid of the heat sink?
Indeed, hence why some “traditional” automotive manufacturers are moving towards 48V only to reduce the conductors weight.
WOW! AMAZING!
44 years engineering in big auto wire harness world wide dealing with bulkhead grommets assembly, test, install was an absolute nightmare. Through PCB is genius.
I have an Aptera der and own stock. I just saw the Chery icar 03. Do you know anything about that? Will it be available in the USA?
My concern is obsolescence. Computer technology used to be advancing so fast that you had to replace yours every 3-5 years, and the old one was worthless. I see that happening to electric cars.
"Cool" 👍
(Sandy is right once again)
WoW -- Thanks
In the first minute they mention about a 12V battery, so is it an internal CT battery or just for jump starting the CT from 12V battery?
I only heard them mention jumping with 12V.. So only a step up circuit from the jump posts.
I'd like to click a SUPER Thumbs Up on this Tech. Well done Tesla.
Awesome!!
@MunroLive - World needs "The 48V Book".
Is there any chance you can provide it?
Tnx.
That is soooo INSANE!!!!
Very nice vedio
I would like to know 2 things
1) There is NO electrolytic capacitors and low frequency inductors on the board?
2) Can we see the back side view of the onboard charger PCS especially at 4:59 sec
3) I think there are only two transformers (can be seen from the traces of PCB winding) but they have mentioned 4 stage magnetics?
I beleive you are right, no electrolit cap is used, and PFC inductors are integrated inside DCDC transformer.
I hope the model 2/A is basically a smaller version of the cybertruck but without the "truck part".
So does the power conversion system replace a low voltage battery or is there a 48 volt battery somewhere in the truck?
There is presumably a 48V battery somewhere, that is why they talk about 'jumping'. Also you want to be able to disconnect the big battery with relays, and those require power outside the big battery.
@@CorwynGC It's confirmed! Franz and Lars were on Jay Leno's Garage and said it has a 48 volt battery for low voltage.
@@CorwynGC Confirmed! T Sportline just did a video with the frunk removed and there is in fact a 48 volt battery, they pointed it out at 6:50 of the video.
It may have been asked already, but does the Tesla in-bed range extender, have any implication due to Rivian holding a patent on an in-bed range extender that looks almost identical?
Tesla lawyers probably had a nice chat with Rivian lawyers and resolved the licensing issues peacefully.
The patent only protects the way it is implemented, not the idea behind it. (At least if you've got the money to survive a lawsuit.) This makes Rivian's patent quite limited, as there isn't much in it that isn't either the idea, pre-existing tech, or stuff that can only be done one way.
Can’t wait to see yall in CES
Does the circuits work on 48V?
What happened to supporting megawatt like the Semi?
I’m waiting for them to ask how the range extender will be installed. Will it need to be added/removed only at the service center or can an average person install it before a trip?
It has to weigh several hundred to a thousand pounds so I can’t imagine people would be able to do it on their own
My understanding is you can install/detach it at a service center, perhaps third parties could do the same thing with the right setup.
It would be great if they can be hired for long trips
I suspect they’ll need to remove the bed panel that it sits on to connect the high voltage and cooling lines. It’s probably not a one time deal (permanent) but it’s not something you’d want to do often.
Does anyone know if PCS2 does AC charging to the 800VDC pack or does it charge with 400V in pack parallel.
I believe it will work in 800v configuration, because of output connector configuration (only 3 pins),
Lots of innovation in the Cyber truck. Personally I would have really liked to see an integrated 500 mile range truck but understand the limitations. Can the range extender be taken out of the bed and used to extend Powerwall capacity? Also, why no power outlets in the front trunk?
It would be amazing if it can be added or removed for long trips but I doubt they will do that: electrical danger, weight, tight fit, need to absolutely secure it and ensure it doesn't get water in there. Seems like a specialist installation.
Huge first for Tesla!
A Bidirectionnal buck converter AC-DC with DC-DC with 60A of 48Vdc!.. I wonder i fthe 48V side is also bi-directional?.. Would be great for some LV range extender pack!!, 3kW seem about 1/6 of the power requirement for highway speed but for every 4 hours driving you could still get 12kWh addirional range.. for some DIY =)
Those planar pcb power inductors are next level. EMI filters are funky looking too.
@@antronx7 I have couple half brick 150W DC-DC from Artesyn and Tyco that also have the inductor made in the PCB layers. These exist since about 15 years easy
@@Doctorbasss Right but these things are huge in comparison. 11kW vs. 150W.
@@antronx7 yes as well !! Small Monster power!!!
I'm so certain this is innovative achievement for Tesla. I don't have an EE degree so it is hard to understand what these engineers have invented and implemented into Cybertruck.
The new converter is smaller, lighter and will be cheaper with volume.
Speaking as an EE, I can say that many of the things mentioned in the video are not new or innovative as I've heard/seen them all before. But, the way it is implemented using the best solution for the need and not being held back by simple or common thinking is where the innovative really occurs.
Genius ✨
Why 4 power stages for hv pfc +cllc? Interesting 😂
Some of want to know which processors they're using. How about a closeup?
Maybe same as Model 3 OBC, Texas Instrument TMS320F28377D
I’m asking when can you dock your cybertruck to your home like the skip they used on the nautilus in the movie… ‘20000 leagues under the sea’.. especially if you camp… maybe.. 🎉
So there’s still a 24V component on circuit board right now, but eventually they’ll all go to 48V.👍
Well he mentioned the audio amplifier are 24V and Tesla are not going to design that part so they will push the component suppliers for a next gen. Most amp chips for auto applications are
there are literaly 3,3v ,5v, 12v , 24v in that circuit still lol!! european trucks and equipments have been running on 24 volrs for decades alreadty just as example.
@@alanmay7929 exactly!
Awesome engineering!
Cybertruck meets humid environment: RIP electronics....
This is just a clip from the other video.
I am very aware of the huge # of preorders for the cybertruck...
... but if this truck would be more similar to any big-3 type of truck, it would have really had the chance to decimate the competitor sales.
0:17 - very interesting. It appears that although "etherloop" has adopted ethernet standards, it has its own type of connector - which makes sense, as the traditional ethernet connectors can come loose without a whole lot of difficulty, and that could be a very big problem in a vehicle.
No need to change the whole standard: just introduce a more secure connector (and possibly thicker cabling?) and get all the benefits of a long established standard without its drawbacks.
It's already a totally different standard than the Ethernet we all know
Interesting that he talked about doing PWM for stuff like window motors in that module. I probably would have chosen to do it at the point of use. Same goes for the audio amps; mount them on the speakers. You’ve a got a network loop in the vehicle, so leverage it so that everything connects only to power and network.
Tesla’s engineer did say “standard twisted pair.” Ethernet can be lots of different media and different bit rates, so he didn’t really pin it down technically. There’s a European automotive data transport standard called MOST which is an optical ring network with the capability of redundancy. MOST is capable of encapsulating layer-2 Ethernet data Frames in its optical transport physical layer data frames, for example. I know BMW has used MOST to network infotainment components; I don’t know who else has used it or where else it has been used.
I know my 2017 Chevy Bolt has at least some Ethernet in it because I saw some messages about Ethernet from the gateway module when I connected my scan tool to the car and did an all module topology scan.
@@wtmayhew this is probably 1000BASE-T1 / 802.3bp over STP
Elon's management style allows these engineers to be bold and reach their potential.
All that Technology shown here more than compensate for the delays and price increase- 800V battery that can be split into two parallel for charging, a firewall with no openings on it coz the PCB is designed to attach from one side, diminishing current to 16th the one other vehicles less efficient use in their 12V systems, etc, etc, etc!!!!! BRILLIANT!!!!!
They didn't diminish the current to 1/16th, current is 1/4th because voltage is 4x (12V->48V). The guy @ 3:30 is referencing I^2R (I square R) and is saying that results in 1/16th the heat. Probably not that low in practice, but it's undeniable 48V is the way to go.
I wish he asked them how the extended range power-packed connects to the system from the bed and will that connection be open to third parties for aftermarket batteries.
Maybe someone crazy will even throw a diesel generator in the back and make a cybertruck hybrid . (Probably a dumb idea but it would be interesting)
Not so dumb. If your load is very variable it is even better to charge a battery with the generator and then use the battery for appliances. Generators tend to have very poor efficiency when used at a small load.
My understanding is you can install/detach it at a server center, perhaps third parties could do the same thing with the right setup.
It makes a lot of sense to be able to tow or carry an electric generator. I don’t know enough about US Dept. of Transportation rules as to whether there would be a prohibition against having a a running generator while under way. A rentable battery trailer would be another way to extend range. I say battery trailer because of the mass of the battery.
is this SPWM or Multilevel???
There goes Sandy again saying I was going to do this in the 80's, next Sandy will be saying he invented the the internet
Real Al Gore, that guy.
He’s probably not exaggerating. The 48v idea has been kicked around for decades, but nobody in management has ever had the guts to greenlight it.
Well he did so. 🤷♂️😂🤣
@@kungfoochicken08 it's not only the managment. Do you remember the relays of that time? You could get away with 48v electromechanics on military vehicles, but it was too bulky and costly for civilian transport. First compact and reliable power switches had to be developed and adopted together with development of CNCs, then it spread over automotive.
I remember all the speculation about transforming vehicles to 42 VDC when it always made more sense to adopt 48 VDC or even 72 VDC both of which were already in use for heavy equipment.
What has tipped the balance a bit recently is all the off grid systems which are mostly 48 VDC LFP.
16 LFP Cells in series or 14 Lithium Ion with appropriate BMS works well. 48 VDC Lead Acid which would have been the go to in 1980s was too unreliable.
While Sandy was at least partially correct in the 1980s the Lithium batteries, the Battery Management Systems, the Buck and Boost converters were not yet mature enough.
Had legacy Auto injected the funding like Tesla, the Solar Industry and Fixed Plant manufacturers did, the transition could have easily occurred way back then.
The Big 3 US companies have always been backward and subservient to Big Oil.
9:33 long term target is 500 miles. Do they plan to achieve that through efficiency gains with existing pack setup and software updates or through new battery improvements?????
Yes.
I think they will do it with marshmallows.
That's not happening without an additional battery. Drag is a pain.
Would putting a some sort of cowling on the back of the CT to flow air around a trailer have a significant positive effect on range?
awesome
I wish we would go to a higher voltage esp on our actual power lines like europe does!
Standard power in Europe is 400Y230V. One of the standard voltages in North America is 480Y277V. NACS supports 277V. Some utilities will provide 480Y277V to residential customers; nearly all will provide that to a business (if requested) instead of the 208Y120V or 120/240V that is normally supplied to small businesses. BTW, split phase in North America used to be 110/220V, then it was raised to 115/230V, and finally to 120/240V. Likewise, three phase used to be 190Y110V and 254Y440V, then it was raised to 199Y115V and 460Y266V, and finally to the 208Y120V and 480Y277V we have today. There has been some talk of going to 125/250V, 217Y125V, and 500Y289V. Doesn’t seem like it’s about to happen any time soon.
I too am aware of I2R, W=FD, F=MA So despite the beauty of full induction motors, the 3 tonne cybertruck makes a Sur Ron rider think... Bike
Didn't realize this guy is so pro Elon and anti Disney.
Shallow minded guy he is.
Would be cool if a towing electric car can do regen braking also with the trailer one day.
The extra battery is very helpful. Think of the backcountry, camping a week, snow. The extra battery makes sense. The charging network isn't everywhere like the govt.
Neither is the urban cowboy. The last time one was seen more than fifty miles from a Holiday Inn was in 1977. :-)
Is it really 'camping' if you are using 300 watts continuous?
Tesla could create a trailer chassis with an integrated battery. Sell them to trailer manufacturers. Enable ‘while you drive’ charging and connect to the vehicle to extend range.
They can't get enough battery materials for them to do that yet...
That would be insane of them to do until they have more cells than they know what to do with... and at that point they'd put them into Megapacks.
It could be a megapack for most of its life sitting in the warehouse dock!
@@zacharyaustin1660 And would that demand the same margins as a Megapack? Nope. Someone else can do that
with how often people tow its still a waste of batteries and money i think a generator on the trailer making it a hybrid would make more sense in the interim until battery tech maybe improves or trailer companies start making more aerodynamically efficient designs. this could even be a permanent solution as most people have generators and this would replace that and the trailer could power work tools and even charge things like electric lawnmowers on the job. We could make this green by utilizing hydrogen or ethanol.
Want to see the inside of the 48v battery!
Same as a 12V but wired differently, no?
It would look the same. It is just a standard lithium battery.
It will just be a 12-cells-in-series version of the current 4-cells-in-series low-voltage battery. There's nothing special about 48 volts (which is really 42 volts nominal, 48 volts peak).
Question?
Is the heatsink cooling down the board?
What's the thickness of the board as well?
Eventually the heat is going to build up...
I counted 10 capacitors on the board
Is Tesla manufacturing their own boards as well as components?
I will say they are addressing the correct issues at hand!
Here's the extra Credit Question?
What's the 1 thing Munro as well as Tesla isn't addressing?
1) Will the range extender be user removable?
2) Will Tesla rent them out on demand?
3) Why didn’t they make the rear seats/window fold down for ease of assembly, air conditioned camping, ski/board/sports equipment, building materials secure long item storage??
I wish Sandy had asked these questions
1) no. 2) no. 3) no idea.
3) It's designed for Cybercuck Bro's, not real workloads. As every fanboi commentator has said, 99% of users don't put anything in the bed.
3.) Because you can't build front seats that can hold back 2 tons of load from crushing you like a bug in an accident. There needs to be a structurally strong element ("wall") to stop whatever you have loaded. Also, the back seats fold up, giving you a really sizable cargo area.
@@HenryLoenwind Yes I get what you’re saying. Fold up is great, but the utility is still limited.
Also GM has pulled it off here:
th-cam.com/users/shortsySylKSd4jr0?si=HKkOg94brijx1xRe
Who would load 1T let alone your Max payload in seats down config? It’s no different to overloading a hatchback, van, people mover, wagon, sedan or SUV with the back seats down. Do we need to baby those users and ban rear folding seats there?
That decision is left with the owners. Most people are free, just like they would in the Cybertruck, to install a cargo barrier cage
@@Tigerratcat would get in the way of the bed cover i guess. if you watch closely you see that it disappears behind the Seats when open.
So Tesla is saying…Sandy we are going to show you how we put the truck together , and you will not be getting one to take apart 😂😂😂😂😂
Did they make it so the NACS port can directly charge another EV? Or do you have to use the 240v outlet for that?
Bidirectional charging, Direct supercharger :) Will they implement Power price tracking? Virtual Power plant, earning money, cost of charge cycles :) How about solar PV charging and power price tracking?
Cycling NMC batteries seems rather wasteful - seeing that 800 cycles can be had in just over a year and a bit if there's two daily peak tariffs - I doubt many people would see this as a worthwhile return on investment for replacing their truck's battery every two years... Regardless, tesla is experimenting a lot with VPP wherever they have sufficient clients with powerwalls already, and nothing stops a truck from charging a powerwall if you were so inclined.
But how does the range extender go in and out???
Once, at a Tesla factory or service facility.