Tesla Model 3 Motor Tear Down - ALL EV
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- เผยแพร่เมื่อ 27 เม.ย. 2024
- In this ALL EV Canada video we teardown a Tesla Model 3 rear electric motor drive assembly. We'll introduction you to the motor components, differential, oil cooling, inverter, heat exchanger, stator, rotor, and much more!
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As an electronics engineer, that was the most amazing circuit board I’ve ever seen. Everything from microwatt to kilowatt components sharing the same PCB. Incredible.
Exactly what I was thinking. 😅
My take too. That board was beautiful.
kW is on a different PCB th-cam.com/video/oVge8I6kxPY/w-d-xo.html
I would prefer to keep all electronics on the outside of the motor assy if it was my call.
The larger magnetic field that you can produce in the stator will determine the torque rating, that is why the rotor is tough to remove. Great video, the inverter/controller is the same as what he said as inverter/brains.
The kid's going places. He's done a great job with the teardown and presented a very succinct explanation of the drivetrain components.
Please, please, buy a couple of body mics. The content is great, but the variable audio needs work. :)
Noted! we worked with what we had. New equiptment is on the way.
Hello please checkout our latest video where we use lapel mics.th-cam.com/video/vUz1tjGGQU4/w-d-xo.html
give them the $700 worth of a professional microphone then
@@elfen_inu1219 Passive Aggressive aren't you.
@@elfen_inu1219 It’s not my job to supply every youtuber with the kit that they need to earn money on this platform. Sorry.
That was really neat, straight to the point not crap talk , just what the title said , subbed for more
I have Been working in the EV industry for quite some time and have seen so many trainings/teardowns. But this is one of the best. No jibber jabber straight to the point. This is exactly what will attract young engineers
This is an excellent video, everyone else like “What’s inside” doesn’t go this in depth. New subscriber!
Thanks for joining!
You get nothing from "what's inside" except how to crash anything
Agreed 💯
Watched that "other" vid first and am 100% more satisfied with this one.
The dad on whats inside doesnt even know how IC engines work 😂
as a time served mechanic I must say this is a very smart simple system I'm impressed
Best Tesla rear electric motor explanation out there. Pure education about this outstanding piece of engineering. A must-watch. Keep it up All EV Canada!
Absolutely nuts that a motor that small can fling a 4000 pound car full of people back into their seats.
I freaking love electric vehicles.
Motors are easily capable, it's the battery which holds back the performance in EVs!
@@EpicJonT Not in mine. The 75kwh pack and two motors lauches mine to 60mph in 4.4 seconds. The fast 3 in 3 seconds. The S in 2.3. Looking forward to the Lucid Air, and the Plaid S so I can watch drag races on youtube.
Engines have to convert chemical energy into rotational energy. So many steps in the process.
Electricity is pure energy so the motor’s job is much simpler with one moving part getting the job done. Converting dc to variable frequency ac adds a step but it’s all solid state.
@@davidelliott5843 Liion battery is chemical energy, so still not "pure" energy.
Only capacitors stores electricity as straight electric potential but it takes a lot of space compared to battery
@@davidelliott5843 what is "pure" energy? Energy is simply energy.
the young man did a nice job explaining every thing
Whoever made this motor and these parts did it beautifully and seemed to get a lot of joy designing it. At least, that’s what it transmits to me.
I've been learning about internal combustion engines/transmissions for years now and it's difficult to find channels teaching about the inner workings of an electric motor. Glad you guys are here to teach us
Straight into business with no bs. An absolute gem of a tutorial really.
Thanks!
Great video, I learned a a lot and I appreciate you getting straight into the video without a 2min intro! I work on gas cars at the moment, but I'm interested in learning about EVs as well. Subbed and liked keep up the great work!
Nice breakdown of the motor, drive gears, cooling system for the motor and electronics. Glad to see young people taking an interest in and learning how all this works.
Thank you for sharing! It's Awesome with an 'A' that we can see the insides of something so innovative. I give so much props to the engineers that created this amazing machine. and to EV Canada that specializes in them.
This is extraordinarily good video; all that’s missing is what spec. Of oil goes in it! Speaking as a Mazda mechanic 1991-2000 & an IT guy since, this made me very happy.
So cool! Brilliant breakdown and explanation.
Excellent job describing the teardown...cool to see the details inside the drive unit!
Mitch was awesome! Easy, fast, engaged, perfect!
That "speed sensor" looks like a "resolver", as it's called. A resolver is a miniature motor that doesn't actually produce motion itself, but induces signal between the phases that the controller can read the exact, precise position of the motor at incredibly high speeds with. In order to drive a brushless motor like this, the controller (please don't say inverter ;) it does much more than that!) needs to know exactly what position the motor is at. That's the job of the resolver!
Pardon my grotesque description, but in this case wouldn't be acting more like a crank sensor anyways? I understand they aren't nearly the same thing, but it's getting the speed of the actual rotor in addition to a more precise position? Just trying to translate some ICE knowledge to electric.
@@gunnar9702 Yes, exactly same principle. ICE engine needs to time the valve openings, spark and/or injection at specific crankshaft angles. Electric motor needs to apply a specific voltage and current at specific angles of the rotor relative to the stator.
Let's call it rotor position sensors it's for control unit to known whats position of the rotor than active the right mf for stator , this is what I think it's for.
isnt that thing called just hallotron or Hall-effect sensor?
The rear motor on a model 3 is 220 hp, it's amazing to think that small rotor/stator assembly can produce so much power output.
Exactly, I'm used to ac induction motors with huge size just for 55k powr
Yes, they didn't uncover the magnetic field focusing techniques inside the Rotor. That's the Tesla Difference.
I would like to see more use of epicyclic gears. The teeth are straight cut but there is always at least one tooth in contact so they run silent and the most is spread across three gears. In effect it’s a scaled up bicycle three speed hub. Benefit is you can boost motor torque for towing or whatever reason.
cheb hou
Commercial motors are are continuous rated and have to be cheap. Most of the time these car motors are running far below their peak power.
@@davidelliott5843 This kind of electric motors doesn't really need gears like you'd require on a internal combustion engine or a fixed rpm electric motor. It can produce more than enough torque at low speeds to spin the tires while still being geared high enough to go insanely fast. And while adding gears might reduce the torque requirements on the motor while increase torque to the tires, it's kind of pointless as the motor can handle the load, and all you're doing is adding more weight and more things that can wear out.
Great video and I love the simplicity in which the motor and inverter assembly was explained.
Thanks Ayo!
You did a great job showing and explaining what each parts are and what they do.
I am currently studying Electrical Engineering and absolutely enjoyed this video! Subscribing!
Hi, what was the manufacturing date of this Model 3?
A grand thank you to ALL EV, for sharing your expertise, and information
Wow I admire the young buck and his knowledge concerning this type of technology within the tesla electric motor. Well done young man.
Very interesting. I have seen a teardown of a motor from I think a P100D and I don't think it had an oil filter or an oil pump. Very impressed with the solid cases and gears. Definitely built for a long life. I wonder what the change interval of the oil and filter is? Thanks for taking the time to do the hard work for us sticky beaks
_Mitch Gregory looks like a young Chip Foose._
Excellent presentation of a 21st century mechanical wonder, thanks, I really enjoyed the video!
Thank you for not wasting my time with filler content and goes straight to that sweet sweet forbidden knowledge
Please take apart the stator and the rotor magnets and show us the arrangements. I believe the stator is pretty typical but the magnet arrangement is a bit special.
th-cam.com/video/esUb7Zy5Oio/w-d-xo.html
Most modern cars have open differentials now, and use the abs control to apply the brakes to spinning wheels. I expect that’s how the Tesla works.
yes, except the plaid, which in the rear has two motors, no diff. "torque vectoring" instead.
Impressive explanation of how everything works.
Havent really seen a motor break down like this yet, great job guys keep it coming.
More to come!
Good work we want lot of videos like that
Thanks kamal!
Great job! You guys are so professional! The Tesla e-drive system is a piece of art. I'm a power electronics and motor control enginner and already got quite familiar with the inverter part. What I'm curious about is how the oil cooling of motor works. Looks like it shares the same oil of the gearbox but I'm not sure the path of oil flowing through the motor.
Thanks Rand! Your kind message means alot. We will try and clear up some questions about the oil in a new video soon. In the motor the oil is sprayed on the rotor and is pumped through the stator. It then returns to the sump.
All EV Canada Thanks for your reply which gives me a clue on that. Looking forward to your new video.
By far the best 'how Teslas work' video I've seen (apart from the audio!). But I wish you'd spent a few minutes on how the motor works - solid magnets produce good torque but the reverse induction causes problems at high speed - that sort of thing. The design of these units is very clever (although I would have gone for a more modular approach for ease of service/repair), but the genius is what goes on inside the actual motor and how Tesla have got round the induced emf problems, etc.
the no noise version is excellent. thank you for doing this video. I come for information, not music. without the music the mics are not that bad.
Interesting. Could do without the techno background music.
Thanks for the advice! We will try to mix some new tracks for the next one.
@@AllEVCanada Key word - WITHOUT music. Normal people that watch your content don't need the music to keep them engaged for more than 10 seconds, we find it highly annoying. Just trying to help. :)
@@hominid3816 if you click on link at top right of video it takes you to the no music version. here is link as well. th-cam.com/video/R9Hgi1JQRx4/w-d-xo.html
Great video and thanks for posting the no music version.
All EV Canada Can you help us design such motors?
Very cool to watch. I used to work for a PC power supply mfr, and remember that higher frequency reduces component sizes (which is why aircraft run on 400Hz).
Any idea what frequency the AC is?
Good Question.
If Motor is rated maximum for 8000 rpm , Frequency goes up to 267 Hz.
Normally motor works in the range of 4500 to 5500 rpm very well , here limit is only Bearing that can not run for long long time above 7000 rpm.
Running at 6000 rpm 4 pole motor its frequency goes up to 200 Hz.
Considering gear reduction ratio is 8.3
then car will catch-up speed of 87 kmph practicaly . (Theoriticaly it comes 90kmph)
At 5000 rpm car will achieve the speed of 71 kmph or 44 mph practically .
Tyre size
235/45/R 18 tyre
Consider 4 percent sag while calculating it's one revolution of tyre .One revolution of tyre will result in 2 meter movement.
Hoping the best
Rakip Rahangdale
Chhattisgarh India
Such a great video. You guys did a great job explaining everything!
Excellent teardown & explanation!
Thanks for sharing!
Thank you for the great video. I always appreciate and admire the genius inventor of the Three-Phase Induction Motor, Nikola Tesla. The idea of a rotating magnetic field that is produced by a three-phase supply to the stator is crazy. Plus, to vary the speed of the rotor, just vary the frequency through a VFD circuitry.
Utterly and completely wrong... Tesla did not invent, or even consider, three-phase AC power, which is the cornerstone of all modern AC generation, it was actually Michael Dolivo-Dobrowolsky who invented the three-phase motor that is ubiquitous today.
Be careful with giving Tesla all the accolades of induction motor "invention". Galileo Ferraris was the first inventor of a two-phase induction motor, but he thought it had no practical use. Tesla, unaware of Ferraris' motor, "invented" a two-phase motor himself, and later (at Westinghouse) gave-up on trying to develop it.
Great video! Very inspiring for DIY peolple, like me !
Thanks! One thing we noticed about this design is that the inverter can be removed and possibly replaced without needing to rebuild mounts, coolant lines, or oil passages. Meaning the inverter is sealed from oil and coolant. So its very possible that an aftermarket inverter can be used.
Looking to test that out one day.
@@AllEVCanada Love this car more and more )))
Young Chip Foose knows his stuff.
Best video of its kind I've seen. Well done guys and thanks for your effort.
Dan from What's Inside watching this video and wondering 'dang! We should have hook with that kid when we tore down our Tesla Motor'
Thanks for super content - Please consider if the music is needed. Personally I think it is disturbing
I cant thank you enough you just made my seminar much more informative thank you 😊😊😊
Really learnt a great concept about Tesla motor
So interesting, never seen the guts of an EV before! But your sound could use some work, guys.
Respect ! :)
Really great content, thanks for showing us the insides of the vehicle. Hope to see more
I love how hes explaining in steps like I'm sat next to a tesla model 3 motor following his instructions
So does that mean to make the motor last there should be oil change maintenance? There should have been oil pan with drain plug for DIY at home.
It's basically maintenance free and the motors can last a really long time.
looks like Elon had a lot of sleepless nights at the factory.
Nice crisp explanation, Thank you Mitch
Nice job of disassembly and explanation of each step! 👏👏👏
Please have Elizabeth do the next teardown
shame on you, horn dog
Wish you'd torn down the actual motor part more, id like to see the insides of the rotor
any further is destructive and therefore a shame, destroying a beautiful feat in engineering.
I don't think that's much interesting there. You got a block with magnets and the shaft is connected to it.
@@sack1958 thats fair, but just seeing a metal cylinder isn't as informative or cool to me as seeing what actually makes it up
A good, clear and informative presentation. Thank you.
fantastic that you have a 'no music' version! :)))
loved it !
Can we have a video of putting back all together and starting it?
You want to find somebody who looks at you the way I look at that rotor.
Straight into business with no bs. An absolute gem of a tutorial really.
Thanks!
Well done, you did a great job of explaining it.
The motor, gears and cooling all fits in a space that would normally house only a standard gearbox and halfshafts. Amazing.
Exactly what we are amazed about.
"Laid oot nicely" 9:51
Is that the Canadian way to say "OUT" ?🤣
In less than 20 years combustion engines will be approaching historical curiosity status. The electric drivetrain is so vastly superior in every meaningful way.
You conveniently forget the energy storage. Batteries are vastly, orders of magnitude less capable than liquid fuels.
@@flexairz Hypercapacitors are the future.
Really comprehensive and complete explanation, I learned a lot!
Awesome video. Very detailed. I love doing videos on smaller things, I can't get my hands on these yet. Thanks!
Dam that rotor and stator are so small, how does it have so much power to move a vehicle so fast?
well the quick ones have two or three of them
@@JackMott well... I wouldn't call the basic model 3 slow either. It takes only 4,4 sec from 0-100kph. Not shabby at all.
@@Nudel-nc1cp its rated at 5.something, are people getting 4.4 ? not slow either way!
@@JackMott Yeah u right. Slowest one is 5,8 sec 0-100kph. Still pretty quick.
@@Nudel-nc1cp can this be modified to be faster is that about it?
Is there a schedule for changing oil and filter like an ICE?
If you live in a cold climate, you should clean and lubricate your brake calipers once a year. Also, you will want to go into low regen and actually use your brakes when there is moisture on the road. Not doing so does the same to the brakes as if a car sits for a very long time without usage - the pad will split in half (recent lesson learned the hard way for me)
I think they say it's good for life, it's more similar to changing oil in a differential (every ~50K miles typically) than an ICE engine. Also with an oil filter you can remove contaminants unlike a typical sealed gear differential, so going over 50K miles should be no problem. Might want to change it at 100-150K just for fun?
@@thomasbihn Tesla has a brake clean function that puts them on at regular intervals to warm and dry the disks, you don't need to do this manually.
It’s an oil filter for GEAR oil, not ENGINE oil. The filter cleverly does double duty as the drain plug. Gear oil is kept happy because it’s constantly filtered and temperature controlled. A normal differential doesn’t get that kind of Goldilocks treatment. As far as maintenance goes, there isn’t much. Tesla originally suggested fresh brake fluid every 2 years and fresh coolant every 4 years, plus a desiccant filter for the A/C and cabin air filters...but then changed it to zero maintenance. The car is smart. It knows if a part like that oil pump has failed or is about to fail. Supposedly, it can even order the replacement part before you even pull safely off the road.
Amazing!! So cool to see and also explained.
A detail that's lost on many observers is the bearing arrangement of the motor and first stage pinion and related lubrication. Perhaps you could discuss that as well? And does the motor run wet with oil? It certainly appears to.
cool interesting video, I hope you make more of these video.
Minor feedback to step up your game on the video making :
-renting or buying lavalier(lapel) microphone would allow a to capture only the voice and not echo and background noise, they are not very expensive
-another option for the audion is to use a more directional mic instead of a omnidirectional mic. this would only record audio where you point it
-as other have mentioned the music was distracting and doesn't really add value to the final product, this is a niche video for people who are really interested in learning, a bit of silence isn't what will scare off the people who would watch this type of video.
As I said these are minor things you will get better with each iteration, we cant be expert in every field, but sharing our knowledge with each other helps us get closer.
wow, thank you. i just finished watching a couple goofs tear a model s motor apart and man i learned absolutely nothing. this made up for all that!
Very well explained!!
Thanks guys 😊
What is precise, is clear. Thank you for this vid.
I like it
Without music
And I thought I would be through with oil changes on my Tesla.
I can live with a filter change once every 5-8 years compared to every 3-10k miles :)
I never knew EVs motors needed inverters and oil
I don't think it would be every 6 months like a normal car. Maybe every 5 years when the coolant gets changed?
With S and X you should replace oil every 100,000 miles. With model 3 Tesla added this standard oil filter, so with wise load put on these gearings (acceleration pedal) you may actually never need to change this oil.
It was worth watching, every minute of it, thanks
Those motor Are Gold! The battery are diamond!
This video is missing three things... smoke machine, lasers and podium dancers. Please round out the next video by filming inside of a nightclub. Great content.
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Dafuq
Elisabeth's jeans are amazing!
Amazing-ly disgusting.
Very good demonstration and explanation. Thank you!
Beautifully explained and this will give a better insight for those who want to explore in EV
It's really that simple!?!? Amazing, I'm guessing in a couple of years EV's will be half the price of combustion engine cars.
So simple! So small. 370kw motor the size of a few brake rotors. Its possible. Battery costs are rapidly decreasing.
no. Its not that simple. It has very complex circuit boards.Motor controller, inverter, battery regulator ETC. These are some pretty "complex" stuff.
@@dieselgeezer18 he is talking about the actual gears and mechanisms involved, much simpler than a 7 speed transmission with differentials.
@@miguellopez3392 thats why you get manual transmission which is much simplier
@@dieselgeezer18 when talking about mechanical parts, it is pretty simple
Every hundred years come to this world a person who change drastically our way of life for better. Now we have with us Elon Musk.
A century later, Nikola Tesla is back to set destiny right this time!! The greedy oil barons have set humanity back by a century, we dont have much time as Elon said.
Is it better? We will see the real environment impact if most of the cars are EV. Until now it's just speculation.
@@HUMC5 Let said that the Oil reserve in the whole world last 1000 years, maybe 2000 years, still is going to be depleted...The earth is not producing any OIl... So we have no choice but to get away from Oil at all cost... It just logical.. producing EV cars.. in the long run it will be more beneficial.. Specially if we managed to used Solar Power as the priority source of energy for all EVs
@@JOSELOPEZ-bq3us Well, thats right but if you think about batteries, we cant mine the earth forever. Minerals are also finite.
@@HUMC5 Check this out, and other articles like it on the same site. cleantechnica.com/2020/09/04/germany-in-august-electric-vehicles-crushing-it-at-record-13-2-market-share/ Europe and China are moving. We are late, but battery prices are dropping every year. Search for Tony Sheba in youtube.
Great pacing.. Thanks for the insight.
much more exciting than any other unboxing I have ever seen😀
9:1 reduction, not multiplication🙂
The motor output torque is multiplied by 9 to acheive the diferential output torque.
Multiplication in torque = reduction in RPM (which is what I'm guessing you're thinking)
Let’s see, so I can go with an inverter, rotor, stator, fixed ratio gear reduction, a splash of oil and coolant, and make tons of power OR, go with an engine block, head, crank, cylinders, rings, con rods, wrist pins, valves, spark plugs, turbine, fuel injectors, fuel pump, water pump, all the associated piping, a starter motor, drive shaft, multi speed transmission, radiator, exhaust manifold, catalytic converter, resonator, muffler, plus gallons of oil and coolant with some seals and gaskets that will hopefully keep it all in, just to produce an inferior power to weight ratio in a less efficient manner… I know what the better option is, and I voted with my wallet.
Thanks for a good description of a Tesla EV car. The sensor that you called a speed sensor is not just a speed sensor. It is also used as a timing signal as to when power is switched to the stator three phase coils.
Thanks for the break down of the Tesla!! 🇨🇦👍
The simplicity and high performance of this compact power unit (engine, 'gearbox', differential) is the k.o. for combustion engines. Moreover, when you consider the savings in maintenance.
Music levels are really high. Makes it almost unwatchable
Thanks for the feedback. Will work on that for the next one!
I didn't even notice the music on my first watch, but I just had another check & yup it's there. I think it adds nice professional audio continuity.
@@KurtSampson that music almost made me stops watching the video before the 2 min mark, i think it does the opposite of " professional audio continuity" because it a cheap/free loop, which stops during some scene or cut (no crossfade) to another cheap loop .
@@fittony if you click on the link on top right of video there is an option for a no music version. Also here is the link. Enjoy. th-cam.com/video/R9Hgi1JQRx4/w-d-xo.html
These guys are good! I loved watching that. So demystifying
Great explanation, clear dismantling. Good job.