What are the limitations to these eCVT transmissions? I would think top speed is limited with only a single planetary gear set. Also, it seems that having one reduces the towing limit. Is towing limited because of heat generation or something else like the battery running out of juice and then you're running on the ICE. I recently took a look at the RAV4 hybrid. It has a decent size 4 cylinder, 2.5 L, that should be able to tow 3,000 lb but they limit it when you have the eCVT. Why? Love your videos... Educational, entertaining, and no bullshit!
The difference between CVT and Toyota ECVT is like the difference between mail and email, TOTALLY two different worlds. I wish Toyota got a better term for their great ECVT.
Ive said it a million times, toyotas 1 mistake was using the 3 letters, CVT. It made everyone think there was a nissan style belt pully cvt and scared a ton of people from adopting hybrids. Journalists, consumer reports and even prominent automotive youtubers got it wrong for years. If toyota had just called it a hybrid transmission it wouldnt have put the image of exploding jatco cvts in peoples heads and their hybrid lineup would have taken off much faster.
@@Henry_Jones yes, Toyota got the name wrong both ways. Nissan and others took advantage of this, just walk into a Nissan dealership and they'll tell you :" oh, this car has a CVT just like Toyota".
@@speedkar99 Can you show a video of the previous generation of that car that has the conventional transmission and then list the parts one by one and see which has a lot to get broken so we can compare which has minimal work of restoration or repair?
Really appreciating all these Prius/Hybrid videos! People don’t under appreciate the ingenuity of Toyota’s hybrid technologies - they’re marvels of engineering that are both reliable and efficient. Thank you for teaching us as you learn yourself!
The puzzling question is is it possible to unlock the speed to 255 km/h or is there a problem facing this transmission, for example on a camry, such as heat or damage
Impressive hydraulic press!! And that graph explaining the ratios is just brilliant... Tesla Model 3 uses the same type of electric motor (IPMSynRM) as this Prius which is more than 15 years ago. IPMSynRM is 96% efficient compared to the traditional squirrel cage induction motor at 94%. This shows how far ahead of its time the Prius was.
Thanks. I stole the graph from a website online that did the math behind it and modified it for the 6 main modes of the power splitting device. Didn't know about the Tesla drive unit.
Looks like ecvts are more robust than the traditional cvt. I like that. Traditional cvts are not too reliable in my opinion. It's good to know that they won't be around for much or in all the cars.
Excellent presentation. It really helped seeing the breakdown of the unit along with the demonstration model along with the relationship graph. All with the perfect amount of toothbrush pointing :)
Hello Sir, I have few questions please! I Imported a HONDA FIT 2020 EHEV HYBRID with a milage of 76,000 km from Japan. I wanted to change the Gear Oil fluid, but am confused about multiple things; - Which gear oil to use? HCF2 OR ATF DW1 - Are there any filters inside its gear which need to be cleaned or replaced by opening the chamber , or is its just drain and Refill? - Beside Engine oil, gear oil, brake oil, coolant, is there any other fluid/oil which need to be replaced after specific millage? Thanks in Advance Sir!
I appreciate your complete set of various tools. The presentation tool you used also helped me a lot to understand the concept as well as not to forget the importance of brushing. Your videos are not only agreat source of knowledge on engineering but relationship and morality as well. Keep going... God bless you
Very to see all these components, thanks! I do appreciate the Prius, we own one, a 3rd gen plugin. I guess they have a lot more grunt, as it keeps a steady 80MPH on the German autobahn, even up hill, loaded with the entire family and holiday luggage. Also on a flat stretch it’s absolutely amazing how quickly it reaches 110 MPH. Still 50MPG (US) for the entire journey. It’s by no means slow, but the ICE revs up quite a bit during acceleration and on steep hills. If you’re the kind of driver that doesn’t want to hear the ICE, afraid to bust the engine, well yeah then it’s slow… But at 80MPH on a flat stretch you hardly hear the ICE. Clever technology and very robust, due to the lack of a physical shifter mechanism and all gears permanently engaged. The plug-in is what it should have been from the beginning IMHO, as it does 55MPH electric only, and has enough storage capacity to drive really long descents on regenerative braking only. I checked the brake temp after driving down a pass in the alps: discs were cold! Impressive.
Hey man love your videos and the way you share information about different engines, transmissions and other stuff. I wanna say that if you can get a diesel engine which you can strip up and show us, would love to see what's in it compared to a gas engine.
Thank you for an amazing lecture. I have a Corolla Hybrid and this video has explained a lot. However, I still don't understand some points. What is the total combined torque of ICE+MG2? All I can find is the ICE torque. It seems that Toyota doesn't provide this value. Or maybe it's impossible to measure it in this kind of hybrid car? One more question, does the MG1 add any torque to the output transmitted to the wheels?
Incredible amount of mass precision engineering to function, quality control to match no other. Amazed the reliability is so high but it is. Great job oh Northern Neighbor. My head spins like MG 1 and 2 watching you explain the concept and mechanical integration of pieces parts while "busting a nut" and referencing to the "speed of a grocery cart". What ever RU-vid income that trickles down to you from them it needs quadrupled. Again thank you & well done lad!
What a kick @$$ video!!! Seeing the internal parts of this monstrosity makes me appreciate the amount if engineering that goes into these cars. Appreciate the great content and jokes being cracked...makes it easier to digest the massive amount of info in the video. Might be time for a new tooth brush though?
Absolutely brilliant video! Well done! I have an Auris hybrid (which I've reviewed on my own channel) and it's great to get a good simple explanation as to how everything works in it. I especially liked how you laid all the parts out towards the end and rotated them by hand.
@speedkar99 Hello, am having issue with my prius gen 2.. my prius has been always charging its Hybrid battery to 6bars every time I use it for trips, yesterday I took it for 1200Km spin , it charged the HV battery to 6bars, then after 200km it never again attained to that level of SOC(6bars)..now it only charge to 4 bars, then once it reaches 4 bars the arrow that shows charge is being fed to battery stops, but when SOC bars become 3bars, the charging arrow comes up again and HV starts to charge to 4bars then stops even at low speed.. but when regenerative braking kicks in the SOC of hybrid battery attain its 6 bars, then after sometime the battery SOC will drop. (depleted) to 4bars...this makes car to use engine power much to run the car and car become inefficient... Kindly sir assist to tell me what might wrong with my car? Note:(no warning light, inverter water pump is working too)
I was experiencing some knocking noises most of the time when mg 1 was starting the engine,at the same time i was experiencing low power even when engine was comingin to assist Mg2 during acceleration...so today i decided to find out what were the reasons for the issues. To my surprise torque damper had very weak springs that were playing around within their containing housing, also it is like the clutch was slipping within its case during had acceleration..so i decided to replace the clutch now the car move smoothly and it has gained power and it accelerate fast compared to previous time. (The car has 205,002km on the clock with original health battery (Delta soc 0.00%, voltage difference o.o3v) i love the car and i service it regularly myself., and issue hybrid assit app to comand my battery coolingfan to turn on always to cool the battery.
You seem quite knowledgeable on Prius eCVTs. Can you tell me if it's a good idea to add transmission specific ceramic addetives to the transmission fluid of my 2008 Prius? There is a Polish company named Ceramizator, and they offer a product called ceramizator CB-A for automatic transmissions of all kinds. I am tempted to try it, but I lack knowledge.
Quick question... it looks like the gear teeth and parking pawl in the eCVTs look a lot more robust. Is it as important to engage the parking brake all the time if you have a hybrid eCVT (Toyota/Lexus) compared to a standard automatic transmission? I worry that the little electric motor in the electric parking brake in the rear, will wear out and break sooner (I'd imagine it's expensive to replace, though not as expensive to fix as a malfunctioning parking pawl)
Next time when you get stuck behind a Prius, it isn't because it is underpowered, just means the driver is hypermiling. When equipped with grippy(instead of low rolling resistance) tires, the handling is really good and lot of fun as it has great low end grunt and brakes that never fade as in a pure gasoline powered vehicle.
Can you do a E-CVT breakdown for other car brand, maybe like MG, Honda, etc? I am planning to buy a hybrid vehicle but i dont know how reliable those hybrid gearboxes are.
The beauty of the Toyota eCVT is it’s driven by electromagnetic force not friction in CVT AT and DCT thus has little to wear during it’s lifespan as a result Toyota eCVT is stupidly durable and require no maintenance
@@speedkar99 thanks for the reply! Even the fluid last a lot longer than conventional transmission, fluid in conventional transmission will be contaminated by friction material like clutch and belt very quick
This is an amazing video! The only addition I have is that battery power is only really used for all electric mode, these can cruise all day long up a hill as they can change rpm as power is needed and all power for MG2 normally comes from MG1 and the ICE.
Oh boy, Toyota's hybrid system is so much advance than Honda. Toyota's system spilt the power between mechanical drive and electric driver like 30% engine power drives the wheel and remaining 70 goes to electric motor and vice versa. Honda's system hybrid systematic just gives all power to the generator motors and when speed goes above 80 kmph, the a clutch engaged and full engine power goes directly to the wheels
Great video. Love your humor. The number of parts inside that transmission is crazy. Seems like a reliability nightmare but I guess there millions of miles on those things.
I’m looking to purchase a lexus is300h 2016 reg. I see some that say cvt and others that say e-cvt which is why I looked up this vid. I am complete newbie with this stuff, can someone please advise me which one I should get and why (in simple terms). Many thanks.
Es doloroso ver como destruyes esos componentes que aún están en buen estado, creo que puedes mostrarnos tú trabajo pero ser más cuidadoso y consiente con las partes, definitivamente pueden ser reutilizadas.
I bought a 2025 camry se so im trying to learn how everything works because as a car guy i respect and appreciate the quality and engineering. Its crazy how well made the car is!
Nice purchase. I think the powertrain will be solid since it's proven in the last generation. I will have an updated video on the Prius gen 3 system later this year.
I would like to see a plot for the 4th gen Prius. MG1 and MG2 are much smaller but they rotate up to 17000rpm to compensate. My 2019 Corolla has the 4th gen drivetrain and at 62mph MG2 is running close to 10000rpm.
Q#1: When I am coasting down a hill and I take foot off of all foot pedal with shifter in D, am I regenerating with mg1 or mg2 or both? Q#2: in the situation above, if I also apply the foot brake pedal lightly, will I be activating another generator or applying brake pads to rotors? Q#3 if applying brake pedal lightly does in fact initiate additional regeration, does the pressure of my brake pedal correspond to the aggressiveness of regeneration?
Thank you for the video. Is the regular Toyota Corolla CVT (Non-Hybrid) also as reliable as this? Please advise (if possible, please make a video). Thank you.
I have a Lexus hybrid with a V6 with ~170k miles When I start driving in the morning when everything is cold, on electric power I hear a rapid clicking from the gearbox, which I assume is the chain clanking against the sprockets. After everything warms up, the noise goes away. This gearbox never had its fluid changed. Should I do it? will it help?
Wait so is this the same of all Toyotas with hybrid synergy drive including PHEV versions of some of their vehicles? I am honestly in awe of how well engineered Toyota's eCVT system is especially considering that it was first introduced back in 1997. It was way ahead of its time.
It excludes Toyota’s new Hybrid MAX drivetrain which uses a torque converter automatic transmission instead of an eCVT. This drivetrain is used in the Toyota Crown, the Sequoia, and the Tundra. These power trains are less efficient but can handle more power from the engine and electric motors
You say something about "law of conservation of energy" and that MG1 isn't being used as a generator when the engine is stopped, but it's a permanent magnet spinning in conducting coils, so it is generating current. They are dumping that current back into the system, but there is a loss. It's a brilliant system but it's not magic.
