EVs are always complex to understand. But u made it easy. Thanks ❤️

@TheEngineersPost

2 жыл бұрын

You are welcome!

@funeralhouse6280

10 ай бұрын

⛽

probably the best EV Motor Uses video review I have seen - keep up the good work and good luck with the channel !

This is a Good Tutorial on the different Electric Motors on EV we use! Thank You So Much for this useful tutorial! 🌷🌿

4 Motor Powertrain is Excellent in all conditions, and as per Driving Experience , Efficiency , power distribution . 👍👍👍👍

@jeromeavila3195

Жыл бұрын

4 motor powertrain is the best option!

Lovely video. Your video clearly explained how electric motors in EVs work, even to someone like me without engineering background. Keep it up.

Thank you for such a video review, useful for all interested and beginners!

I came from Previous video about gears by searching for types of motors and find this video. Thanks for informative videos

Superbly explained 2 words for the video "Simply Awesome" Good bless you keep the good work going

بہت محنت کی ہے اپ نے.

Great explanation, very easy to understand especially for beginners.

@TheEngineersPost

2 жыл бұрын

Glad it was helpful!

1. You can't break unity. When doing two or more motors, any motor doing regenerative braking would add more load to a motor pushing the car at the same time. With motors less than 100% efficient, this would drag down range and increase tire wear. Dual motor Teslas have reduced range for the same pack size due to increased mechanical drag from the extra components. 2. Teslas do torque vectoring on dual and tri motor cars by using the brakes independently on the wheels. Works pretty good. Of course a motor for each wheel is even more control and allows for things like tank turns. Mechanical brakes in EVs get relatively little wear, so using them to balance torque a little here and there is fine. 3. As mentioned elsewhere, you want the wheels to be as light as possible so they can be held to the ground when going over bumps and such. A heavy wheel because it has a big, heavy motor in it is going to fly up into the air when it hits a bump and not immediately come back down because of the mass in the wheel wanting to continue to go up after hitting the bump. This leads to terrible traction and loss of control of the vehicle. In addition a low RPM hub motor is going to be big and heavy because you need the motor area to generate max torque at wheel rotational speed. With a motor in the body of the car geared down, the max torque of the motor can be much less allowing the motor to be a lot smaller. For speed, the motor can just spin really fast when the car is going really fast when there is a gear reduction. You can only generate so much torque per unit of area of motor, but voltage to the windings can be varied for speed control. Because electric motors can spin a whole lot faster than an ICE engine before flying apart and the torque they can produce has a large factor in how physically large they are and because electronics can act as a variable transformer stepping the voltage down and such, only a single speed is needed. You just size the gearing so that the electric motor won't fly apart at top speed and size the motor to produce max desired torque considering the torque amplification factor of the gearing. Then the motor shrinks down as power is handled by speed of the motor and you can have a lot of speed before the motor flies apart. When you look at a Tesla or Prius, they take these lessons to heart and have very high power density electric motors that can spin at very high RPMs. When you look at the Chevy Volt for example, they did not understand this and so ended up with relatively large and bulky low power density motors that spun more slowly. 4. Leading on from #3, it would have been helpful to get more into the torque curves of these various electric motor types. When you get into the dual motor Tesla Model 3 and Model Y, they use two different motor types in part because they have different torque curves, so having one of each motor type allows them to distribute power during an acceleration to make better use of each torque curve. 5. As mentioned elsewhere, the motor descriptions you gave are not all completely accurate. I can't use this video as a reference due to the inaccuracies.

@joansparky4439

2 жыл бұрын

nice rundown, thanks

@avipratapsingh1607

Жыл бұрын

Yeah. I disagree too with what the video says at 12:30 about one set of batteries recharging while the vehicle runs on the other set, extending the range.

@tesla_tap

Жыл бұрын

Good insights. It appears most manufacturers of dual motor designs do have reduced range over a single motor. Dual motor Teslas actually have increased range over the single motor varients with the same battery size, when they offered these options. This is because they gear the motors slightly differently so they can optimize the motors for different speeds where the motors each offer the maximum efficency. For example, the single motor S75 got 249 EPA range, while the dual motor S75D got 259 miles EPA range. Both of these had the same battery pack. Seems most other manfactures are still trying to figure out EVs and have yet to do much optiomization. They wil get there someday.

@ChaJ67

Жыл бұрын

@@tesla_tap Well, what I heard when the Model 3 first came out, the single motor long range was getting more like 370 miles of range, which is significantly better than the 315 mile range the same Model 3 with dual motors was getting. What I read was something more nuanced was happening than simple gear ratios as gear ratios between two motors in the same car don't matter. I mean you can only go as fast as the slowest motor / gear ratio setup and having one motor geared to a faster speed tends to mean it generates less torque. Instead the important point was the torque curve of each motor type used. The typical deal with Teslas these days is to have one switched reluctance permanent motor and one AC induction motor or something to the like. These motor types have very different efficiency curves and very different torque curves. The permanent magnet motor tends to be better in the back because you can launch the car off with its high starting torque and in general it is more efficient, so putting more wear on the back tires by having them push around the car the most, counter balances with the steering wear of the front tires. I mean a front wheel drive vehicle has to have its tires rotated often and consistently because the front tires get a double whammy on wear, leading to a massive imbalance of wear if you don't rotate the tires. The AC induction motor in the front is mainly best used for mid to high speed heavy acceleration as it is better at generating torque at higher speeds relatively than the permanent magnet motor. However, the AC induction motor is less efficient across the board and especially bad at low speed efficiency. So, you want to use this motor a lot less with most of the time it is very lightly used in order to minimize AC induction slip losses. (The harder you push on an AC induction motor, the more the induced magnetic field 'slips' around the rotor and thus the worse the efficiency, especially if you are slipping a lot at a low speed.) Also having only one permanent magnet motor in the car with the other being an induction motor saves on rare Earth materials used as the induction motor does not use rare Earths.

@uvwuvw-ol3fg

5 ай бұрын

​​​@@ChaJ67If frontal induction motor gets used so rarely due to lower efficiency doesn't that also reduce the range just because you need to lug around useless weight? If there is no clutch then the front motor also adds mechanical drag. Heavier tires will make the suspension less effective, but the weight in tyres at least smooths out the speed due to rotational inertia during longer stretches of road on a bicycle for example.

This made my day

I wished if there was 1 million like button for the excellent review ❤❤❤❤

EV is a new concept we are to understand. You tried to make it easy. thanks.

Superb! Thanking for sharing this video! greetings from Papua New Guinea!

Good little review there, thanks. Two things I would like further explanation of 1) would not in-wheel motors not increase the turning moment of the vehicle by being further from the centre axis 2) and make the vehicle ride rougher due to the increased unsprung weight? Once more good job.

@ILSCDF

Жыл бұрын

The increase in turning moment would be insignificant imo

@jn5193

9 ай бұрын

EVs are heavier and Rubber dust production resultant pollution from tires to be considered for evaluation.

Nice content 👍👍❤️ Thanks for the information ❤️

@TheEngineersPost

2 жыл бұрын

Thanks and welcome

Very comprehensive video on EVs motor systems. I feel like going EV, like right now.

@arielhermoso4262

3 ай бұрын

@cliveosborne__ : The bttry replacement every 2. yrs, was very painful to the pocket... We have 3. units of e. bike now, the 5th round of bttry replacement for an e.bike- the bttry cost was almost the price of the e. bike unit!!.. Here in Phils, theres a lot of surplus "motorcycle engine", so I encouraged my son, a small engine mechanics, to CONVERT 1. unit of our e. bike- into gasoline engine... The waste of money for a new set deep- acid bttry, every 2. yrs- its very disgusting!... Other option : Remain in bttry powered e. bike, but will used the ordinary lead- acid bttry (not the deep- acid type), commonly installed in motorcycles, cars, suv's, trucks, etc.. Then, we'll install the "bttry charging system" of said lead- acid bttry, its "alternator charger", will be operated by small gasoline engine... Said gas engine will "auto start" ,when the "bttry voltage" DROPPED 10% "lower" than its PRE-SET "level"- then, will "auto OFF" , when the NORMAL "volt level" was REACHED... And vice versa... Surely, we'll used a "step-up" voltage transformer, coz 24- volts was the aver. volts for big truck bttry... Since year 2012, many tricyle driver, here in our town, were already using such tech'gy - "conversion to lead- acid bttry"...😊😊😊.. But they didnt include the "bttry self charging system"- coz its pricey...

Some corrections needed here. The SynRM you're talking about at 6:40 is what I've got in the back of my Tesla Model 3 RWD but it also has permanent magnets embedded in the rotor. As far as I'm concerned, you cannot improve on that provided the permanent magnets don't demagnetize over time or due to heat.

Synrm also uses permanent magnets and Teslas are primarily RWDs.

@noassruncis3963

2 жыл бұрын

IPM-SynRM

@dukealok0303

2 жыл бұрын

Yes, that's true.

@tesla_tap

Жыл бұрын

The Model S and Model X are only sold as dual or tri motors AWD. The Model 3 SR+ is RWD (single motor). Other Model 3s and the Model Y are dual motor AWD. I'd estimate less than 10% of Tesla sales today are RWD only.

@ts9252

Жыл бұрын

Most Tesla's are dual motor.

Very clear explanation! I want 4motor because very strong and no overheat

@marsogreen2411

6 ай бұрын

The overheating issue is not related to configuration. It's related to type of motor

Thanks again for this wonderful video

Thank you so much for teaching

Another well-animated educational video, rife with factual errors, narrated by text-to-speech

I find that the dual motor system is the best for EVs power density and power control.

There's also the twin motor front wheel drive configuration that many Chinese evs use. In most cases all wheel drive aren't available, as the frames were designed only with fwd in mind, and available space and weight was already used for battery. There's no transmission, no rear motors, only small passive generators integrated into rear break rotors for clawing back breaking power. The idea was to keep everything as simple, cheap, efficient, and reliable as possible. We may see this configuration more often as evs come down from the luxury market and become mainstream.

@georgeb5262

Жыл бұрын

I don't think so. Maybe it would be reversed. The best drivetrain is this, that sents ≈30% of the power to the front wheels and ≈70% to the rear. EVs can do it easier than the ICEs. As more EVs are made, there will be more chassises specially designed for EVs. When gasoline engines are banned, probably the only available chassises would be those for EVs.

@devanshkoshta1878

Жыл бұрын

That twin front motor configuration shifts weight distribution to the front making it easier to drift but a lot harder to turn around tight corners.It is a bad configuration.I don't understand why some Chinese companies use it.

@kevinburke6743

Жыл бұрын

@@devanshkoshta1878 they have a 3 tier production line. The body comes down from the top the middle line where the battery is fitted & the underfloor pan attached. Then it move down ground level where the motor/s steering, suspension & wheels/tyres, all on the front subframe are fitted! Then the cars away for trim! Short efficient production line, ideal for for small cheap put together in a short time.

@KenanTurkiye

Жыл бұрын

Now I understand why I like carburetors better. : )

@KenanTurkiye

Жыл бұрын

.....the induction noise!! lol

Excellent video!

A motor for each wheel is the best!

Great explanation

Nice video 👍 nice description

Clarification of ev based on motors really appreciable.Thanks for your information.

Very good, Very informative. Congrats, wish to hear from you soon

@bakataro3437

4 ай бұрын

Fu EV guy

I prefered the 4 all wheel motor. Its is perfect for vectoring and more power delivered for each wheel.

@democracyforall

5 ай бұрын

yes, the four motor is the future I suppose because it gets ride of all that long and heavy transmission as well and that is one big step forward into the future. I am keen to see it coming out in the future...

Thanks, Great Video.

The video was very informative. I wanted to know more on the Axial Flux Motors and their application in production(Specially One from the Koeinseg Regera)..

At about 12:25... "One of the motors can be used to power the car, while the other set of batteries can be recharging". Not unless you are plugged in while driving. 😁

@KevinMichaelMurphy

2 жыл бұрын

What do you mean?

@snorman1911

Жыл бұрын

Using one motor for charging the car would simply place extra drag on the other motor in equal quantity to the amount charging (minus losses, so you lose energy). Unless they mean doing it at separate times, but the way they word it is ambiguous.

I believe in the in-wheel motors for my EV concept.

Thanks @ lot for information... According to me 4 motor will b good

@TheEngineersPost

2 жыл бұрын

Yes it will

Electrolmotive diesel trains use double squirrel cage induction motors because they are very reliable motors. Its has high starting horsepower and torque set up but they’re large in size.

Sadly we are going to see a lot of single motor vehicles before manufacturers start bringing down the cost of true four motor AWD unless its done under a government regulatory mandate.

@mesiagamer5217

2 жыл бұрын

Unless there's something unsafe about it that isn't unsafe about vehicles in general I would like to disagree.

@jhixx8910

Жыл бұрын

electric motor based torque vectoring isn’t going to compensate for cars that have poor handling. They do have the potential to improve handling, but it’s usually nothing significant since differentials are already quite good at torque vectoring.

@chazlabreck

11 ай бұрын

They are all gauging right now,, even batteries are being gauged over

@chazlabreck

11 ай бұрын

@@jhixx8910 Yeah it's a weird thing to contemplate..differentials can shift the tires independence "grip" (revolution) for going around corners ,, one tire needs to spin a little faster on the outer track,,, but does a duel rear motor do the same or one has to take up the power ..I suppose some sophisticated motor control codding would be necessary to maximize the independent moters speeds around a corner.

@marsogreen2411

6 ай бұрын

@@jhixx8910 I used to think that, until I drove vehicles with torque vectoring. Yes of course they're only factor in the handling equation, but with the same suspension, you get significant improvement and drivability, especially at high speed cornering, of course. You can try this in ICE vehicles, such as Porsches. Drive the same car with and without, and see the big difference

Relating to motor configuration I see two favorable set-ups. The single motor drive is the best for electric conversion of ICE cars. The best natural electric car configuration is the four hub motor concept based on AFS motors as the best fitting package to the wheels.

@foureyedchick

4 ай бұрын

So, essentially, an internal combustion engine spinning a strong generator that charges a battery pack that runs electric motors? There are several conversion steps, from mechanical to electrical back to mechanical. A bit redundant, but doable.

@gkdresden

4 ай бұрын

@@foureyedchick The problem with ICE cars is the partial load operation of the engine. An ICE is capable to operate at a COP of more than 30% close to the point of its highest torque. At partial load (and also at maximum nominal power) the COP is considerably smaller. If you operate the engine close to its idle rpm the COP is typically less than 10%. If you idle the engine at zero speed the COP is of course Zero. In driving cycles the averaged COP is typically between 15 to 25%. Mechanical to electrical to mechanical is therefore considerably better if you operate the ICE at its maximum COP point. The charging / discharging COP of a Li-Ion battery is higher than 95%. This is also because in contrast to ICE operation, the partial load COP of the whole electric power train is better than at its nominal maximum power. This is also the reason why buiffered serial hybrid systems are used for railway applications.

Make more videos @engineerspost.its very useful.. keep going so one day you will get one MILLION SUBSCRIBERS

@TheEngineersPost

2 жыл бұрын

Thanks a ton

@LukaArtelj

2 жыл бұрын

@@TheEngineersPost what abaut inwheal motors??

Wow, it was really nice to have this video here. By the way, I will research Charging stations' impact on smart grid power quality and stability, which is vital for power industries and governments to consider the increasing usage of EVs in grid power. It seems that up to many decades, the EVs will be fully having roads under there own wheels. Which makes this research really efficient. If you have any kind of research cooperation program, please let me know.

Finally I conclude that its the end of differentials and other mechanical parts wich normally are equipped on the ICE cars. But I think that this permanent magnet engines are the best effective and efficient engines ever. But the problem still on the batteries the weight affects their own performance overall And this is a topic on that powertrain automakers need to solve!!! Finally, the future tells about the scopes about the evolution of the batteries.

@georgeb5262

Жыл бұрын

Not for sure since Tesla still uses differentials and Porsche - gearboxes.

Practical and natural progression suggest all EVs will be four motor drives. You get best of the both worlds. Efficiency (good for climate) and extremely responsive car (like a Ferrari!)

Thank you for sharing

Excellent Information Presentation.

Dear brother you have done a great job by uploading such a highly useful and informative vedio. Best wishes Naeem ahmed bhatti From,, Islamabad, pakistan

greattttt video, can you make a detailed vid on welding type since my 1st year of engineering is online :)

@TheEngineersPost

2 жыл бұрын

Sure

I would prefer a 1 liter, 70HP triple cylinder engine, paired with a 40HP axial Flux motor/generator, to cruise the car at a fixed speed, and a 100hp rear motor, for acceleration.

Nice video!

Thanks for sharing this good info...

@TheEngineersPost

2 жыл бұрын

My pleasure

Good video, but wish in-hub (within wheel) motors had been more extensively discussed.

@Blaaggarding

8 ай бұрын

Check out Porsches new in hub motor setup it looks cool but the unsprung weight would make it a horrible daily driver

@marsogreen2411

6 ай бұрын

@@Blaaggarding which Porsche? The Taycan? or hybrid models?

Thanks alot good information

@TheEngineersPost

2 жыл бұрын

Glad it was helpful!

Excellent 👍👍👍

Rivian looks soo good

thank you so much for this video, do you have a video for regenerative braking system ???

Thank you…

Superbu explanation

Best video among all but explain further about it's electric components ✌🏻

@TheEngineersPost

2 жыл бұрын

Sure thing!

@mahadevudgire

2 жыл бұрын

@@TheEngineersPostlike How to make a battery pack for car??

@88koldenburg

Жыл бұрын

...and drivers, vfd's, etc

Who else had completely forgotten about the GM EV1?

வாழ்த்துக்கள் 🌹

Thank you

The future is gonna be great if the World doesn’t come to an end first! Constant improvements and innnovations!

Given all that's being said about electric Motor evolution , control systems, gyroscopes , robotics etc , looks like a single motor , single seater , single wheel system set up on a single pole provisioned with stabilized seat and self navigation controls for the commuter will be the next important development in the coming years.

@marsogreen2411

6 ай бұрын

Why? Sounds pretty useless to me.....unless of course it comes with a potato chip bag holder for the lazy person who wants them

I am a retired engineer, I worked in Medical Systems, Factory Automation and Robotics for 45 years. Now I own a 2104 Corvette and the 2024 E Ray looks very promising. BUT they did nothing for efficiency, MPG or emissions. Only Power and Speed. I hear you say "When In Wheel Motors arrive" . OK I want an In Wheel Motor for the front two wheels of my 2014 Corvette. I think Chevy Missed the opportunity for cake and eat it too in the E Ray. I think we need to focus on Retrofitting existing vehicles into AWD Hybrids with In Wheel Motors and Single Pedal controllers, Regen and Vector guidance. My goal is longer range, AWD, bid power when needed and power assisted Gas drives for Max MPG and Lowest Emissions such a E85 Conversion to Gas motor for emissions and power. Where can i go to get a Conversion engineered and practical in my remaining lifetime, I am 74. My 1st Vette was a 1964 now this 2014 may be my last one. I like the car and just need to make the best for the future in emissions and power. Front Engine rear Drive feels so good to me after owning 8 Corvettes 3 of them supercharged its a format I like. I have tried the known motor sources but they are all lined up to supply the Major Manufacturers NOT the After Market vehicles. Trucks and Cars need love too. I thought making the Corvette conversion first could open the AWD Hybrid conversion market up to all the other Gas Drive vehicles. Delivery, Pick Up and sedans why not? Any feedback or comment welcome. I learned good thinks in this video and will look for others on your channel. Dennis

Very nice

BLDC and PMS is more or less the same for me. Also the axial flux machine is just another geometry of this principle, which allows for iron free systems.

Nice.

perfect

thanks

When cornering, how to independently measure which wheel the vehicle needs more torque, is a gravity sensor used here?

@vamshis1756

2 жыл бұрын

it is usually achieved by sensing which wheel is easier to rotate and which is harder to rotate, the wheel that is harder to rotate needs more torque

The best improvement would be to eliminate the charge cycle entirely. Flying saucers ( some ) use Kohler converters. But what is the strength of the EMF field at ground level? There has to be magic in the mix.

@ovidius2000

Жыл бұрын

?

@marsogreen2411

6 ай бұрын

Yeppppp... 🤣🤣🤣🤣

I wonder how in-wheel motors can be considered the best when it adds considerable un-sprung weight which will adversely affect handling.

well-Done

Could you expand this discussion to include hub motors? I’ve been watching the development of the Aptera and Lordstown Endurance EVs both of which use hub motors. There seems to be a lot of advantages with these motors but what are the disadvantages?

@TheEngineersPost

2 жыл бұрын

1. Adding hub motors could vastly increase the unsprung weight and hurt performance, they will feel the impact of every pothole, bump, and high-speed turn. They will also be exposed to road dirt and mud, dust, water, and road salt. So engineers must balance durability and weight, and it has yet to be seen whether any current hub motor can last 100,00 miles of everyday driving. 2. Hub motors are more expensive than a single motor mount on the rear axle. 3. They are not as torquey as a single fixed motor. 4. The hub motor is easy to overheat, and it can affect the torque density and also cause demagnetization of the magnet.

@literally_british_544

Жыл бұрын

the only real disadvantage with them is they create more unsprung weight at at the wheels

single TYPE motor, is my preference. For simplicity reason. 2 motor, front & back, is simple enough. Quad motor, 2 front & 2 back, only if it can turn to 3 / 2 / single motor, when 1 / 2 / 3 motor develops a problem.

Super

@TheEngineersPost

2 жыл бұрын

Thanks

Kindly do you know which type and kind of motor does the Jeep Renegade Trailhawk 2021 4xe use? Thanks

In a turn in any vehicle trailer or kids wagon the outside wheels travel further because they are going around a bigger circle, so they are rolling faster.

10:40 more efficient at a higher altitude ........... ?? Great breakdown of electric motors .

High quality Motor❤🪬💚🌏

MOTOR ; ALTERNADOR : GERADOR ; MOTOR - ELÉTRICOS ; WORLD ; MOTOR : ELÉTRICOS : DIVERSOS : UTILIDADES : INFINITOS : APLICAÇÃO : UTILIZAÇÃO !!! ; MUITOS PRODUTOS : SERVIÇOS !!! ; MOTORES : ELÉTRICOS !!! : FUTURO : GRANDE !!! .

For any case: the toyota prius is not simply an electric٫ Comes with a I3 - I4 hybrid engine 📌

@GOCookie_

Ай бұрын

(Also in the induction site: rav4 hybrid)

Nice vedio ev👍👍👍👍👍

Is the upcoming 2023 CR-V Hybrid also a series hybrid? Indications are it will be improved. Could you do a comparison of the old and new for us please?

What is the best car engine to make at home? What do you recommend for an engine?

Good video useful for all about new technologies, for sugarcane juice making machine which motars is good 🙏

meri Fast year ki pahli semister offline Hui thi aur ab third year ki last semister offline ho Rahi hai mechanical engineering ki

Hello bro, can you suggest me which motor I prefer to design EV in simulation.. Kinldy your quick response may be a good favor

electromagnetic interactions how to avoid that in making motor and which material will be best to the electromagnetic interactions between stator motor function . ?

In wheel is great

Well, single motor driving a diff is real popular. The heavy truck community seem to love that format as they are calling them e axles. I was hoping to rid myself of the diiff as it requires regular servicing which is the primary attraction of BEVs to me. No oil changes-no emissions testing-no transmission servicing-no driveline nor U joints to service-no cooling system...Win-Win-Win. If Tesla can make that $25K eco sedan happen they will have a monster on their hands & the conversion to EVs will accelerate to an unbelievable pace. !

One battery charging while the other is driving!! Sounds like you have invented a perpetual motion machine.

I mean which type of motor I will use it designing of EV simulation?

Was regenerative braking mentioned?

This video explains how efficient electric motors are compared to an internal combustion motor. They have less moving parts and are smaller in size.

@denispalmer1937

Жыл бұрын

the stated efficiency is not correct as none of the electric motors have higher then 5 % at startup and during startup draws more current and is putting out less hp, that problem was solved several years ago but has not been put on the market due to those attempting to bring this new development were killed in a so called accidental airplane crash.

@snorman1911

Жыл бұрын

Oh no, were they killed by the same people who have been killing everyone who invented magical 100 mpg carburetors?

@marsogreen2411

6 ай бұрын

It's true for other reasons - none of which is demonstrated in this particular video.

What about electric trains. As I know they use asynchronous induction motors. Could you make a vid on them.

Using a poorly written script that is read by a computer text to speech app is resulting in some confusing wordage in places. But it is overall a useful video.

@davewilliams1568

Жыл бұрын

Yes, the stress on each word is often wrong. The script sounds like it was written by someone in China. There's a weird word 'centrelized' on screen at one point- is this correct in any country?

Can we use 2 induction motor in car? Without any modifications