12 years ago a friend and I were talking about this two cone chain concept, you could slide a chain back and forth. No edge wear as with the conical pulley systems. But the question was how to keep the timing of a chain on the variable pitch of the cones.
@croissantmania im trying to understand that myself. i thought of two ways, it could be electronic control or the faster the cvt or gear its spinning it move up to higher gear. its very nice feature.
I had a cone type cvt setup on one of my mouse trap cars for school, I didnt have enough time to refine it, but when I had the wheels spinning off the ground it worked great, I just couldnt get the ruber band tight enough for it to move itself..I figured it wouldnt work, but i wanted to try.
CVT's are great but I personally like the Planetary Gear system that in in the 2010 Prius. I do like a CVT because it is smooth and you don't notice any transfer of power at different speeds. I have never liked the gear changing feeling of the old automatic transmissions.
I invented this in 1982 - 83. The significant issue with this design is very simple....and evident....due to the lack of sound during the demo. Like my prototypes, it will be noisy as hell and vibrate like crazy, the vibrations mostly unnoticeable in the lower revs, but becoming increasingly evident in the higher bands. Oh and "JDdaDJstressed" a torque converter is, for all intents and purposes, a clutch.
i had a similar idea. bit instead, my idea was just to have one 'gear' change in size by expanding prongs, powered by hydraulics. it would therefore need to have a wide belt to connect it to the axle coming from the engine - it won't be able to use and teeth, hence the belt. but it's a bit more simple than this.
the only problem is the strength of the belt, and possibility of loss of friction - a problem gears and chains don't have.
@JDdaDJstressed The cvt can create an infinite amount of gear ratios, helping create more linear acceleration and better acceleration. Torque converters are connected to the flywheel, and so the output turbine shaft (of the torque converter) can rev as high as the engine rpm, but since it has no gears a transmission must be used in tandem.
@EngineeringExplained but torque converters can immitate the effect to some degree right? is that how trains work? cos they rev really high and gradually speed up.
@JDdaDJstressed Torque converters can rev higher than the output shaft, correct. Think of a torque converter as two fans to put it simply. One fan is connected to the engine, the other the transmission (and therefore rear axle, wheels, etc...) The engine can rev high, spinning the fan very quickly. The transmission fan will gradually catch up to this speed. It's almost like a jetski. When you "floor it" in a jetski, the engine revs the impeller at top rpm, but it takes time to reach max speed.
@JDdaDJstressed Torque converters can rev higher than the output shaft, correct. Think of a torque converter as two fans to put it simply. One fan is connected to the engine, the other the transmission (and therefore rear axle, wheels, etc...) The engine can rev high, spinning the fan very quickly. The transmission fan will gradually catch up to this speed. It's almost like a jetski. When you "floor it" in a jetski, the engine revs the impeller at top rpm, but it takes time to reach max speed.
@JDdaDJstressed yes they can but coast a lot of money but and electronics they shift just as smooth if you dont beleive me go test drive a M56 Infiniti smooth as glass. in short CVT's too little too late
Also can someone tell me what the life span is on the belt ?
Hey like could you use this an AC powered treadmill to vary the rpm infinitly? I am thinking of doing it but I want to get the torque and rpm right for the treadmill.
i seriously hate the feel and sound of a CVT ... most Nissans have them and it can become very annoying - i understand the concept and reasons for the CVT, but as a car enthusiast just can't stand them
@disengagejam I hear you, but CVT will become more main stream, a few years ago in car review it was all about the engine capacity, Bhp and how the car was to drive, now car reviews focus on emissions and fuel economy. for us petrol heads there is no replacement for displacement.
@kingjimsixsix5 cvt's have been around for 30 years in the motorcycle world they are noisy and will always be noisy its just they way they are. for a long time they couldn't make one to handle the Hp that car motors put out. so i wouldnt see these on performance cars any time soon
@kingjimsixsix5 Isn't the CVT more about efficiency of power transfer in general? I mean, sure, displacement helps and efficiency helps too... but I think that if you pair the displacement up with a CVT it would be much better than just having high displacement... am I wrong?
@kingjimsixsix5 I have to disagree with you:CVT is a thing that can be considered a side line in modern transmission development since DSG transmissions have been developed.No high pressure oil needed and no hp/torque limit as well.
CVT is becoming more mainstream on economy cars. The belts slips on higher performance vehicles rendering them almost useless. Dual clutch units are going to become more mainstream.
Also car reviews continue to be about HP and how the car is to drive. I have yet to read an article on Motortrend, Car and Driver, or Road and Track that focuses on emissions and fuel economy.
Your "no replacement for displacement" comment makes no sense in that context either.
@disengagejam Plus, regardless of how the "cvt" maintains constant power output over the traditional planetary gear trans, the fact is a cvt has very low power handling vs any other form.
@disengagejam CVT's and rotary engines are better in terms of engineering/science principles than standard transmissions and piston engines. So why are they dominant? We have used them for long after they dominated the market (due to historical reasons) that it is very difficult as you say, to change to something that is "wierd". I do own a car with CVT. CVT was not part of the buying decision but it was very wierd (at the begging) to get used to a car that does not give you gear shock.
@disengagejam I do mean the Golf R... lol Yeah this is my 2nd VW, My first one was a manual 6spd, but its a pain in the ass to drive stick in the city ... so DSG is second best thing imo. Love them VW's! and i will for as long as they NEVER use a CVT haha
@disengagejam I do mean the Golf R... lol Yeah this is my 2nd VW, My first one was a manual 6spd, but its a pain in the ass to drive stick in the city ... so DSG is second best thing imo. Love them VW's! and i will for as long as they NEVER use a CVT haha
@disengagejam I do mean the Golf R... lol Yeah this is my 2nd VW, My first one was a manual 6spd, but its a pain in the ass to drive stick in the city ... so DSG is second best thing imo. Love them VW's! and i will for as long as they NEVER use a CVT haha
@disengagejam I do mean the Golf R... lol Yeah this is my 2nd VW, My first one was a manual 6spd, but its a pain in the ass to drive stick in the city ... so DSG is second best thing imo. Love them VW's! and i will for as long as they NEVER use a CVT haha
I work at nissan, since i wash cars all day my favorite remains to be the nissan versa hatchbacks, why, CVT, its reliable, very simple compared to gears, easy to work on, and faster
dude, u completely missed the point of twin and triple plate clutches. these clutches are designed for minimal slip and can withstand a much higher amount of torque because the extra plates allow for increased surface area which in turn provides more friction. that is the reason race cars use these types of clutches. besides, many race cars today including F1 are using a MCT that can shift gears in 10 thousandths of a second =) look it up if u dnt believe me haha
The "fins" look a little flimsy, but also look more efficient than running a belt or rollers over a smooth surface. No guaranteed "mesh". Although the Nuvinci CVT offers a boundary-layer, fluid dynamic, solution, this one looks like, with some work could handle at least 500hp/500lb-ft. CVTs are maybe 10 years from being fully acceptable.
@DocWolph unfortunately i doubt that. if most people still can't get their head out of the clouds and admit internal combustion engines are outdated tech then i doubt they would accept CVTs with such open arms. they will prob find some cheap excuse or something
When I stop at a traffic queue for a minute or over, and I am tired applying the brake, should I shift the CVT gear into N, or P and applied the hand (foot) brake. What is best to avoid wear and tear on the CVT gear box
you know how in a traditional transmission when you stomp the gas pedal the engine revs high almost instantly but in a vehicle with cvt (Nissan Altima) for example the engine revs rather slowly. Is there some way the cvt can be programmed to reach the engine's powerband quicker
its not actually better than gears because the CVT uses one single rev range, where as a geared car can use the full power of the engine in each gear. CVT cars must reach a certain speed before the power band of the engine can be used
@RustyNex You don't understand what you are talking about. The max power of the engine is achieved at its one best speed. Varying speed doesn't help anything.
@scooler not when it comes to acceleration, by using the upper half of the rev range a geared car can out accelerate a CVT car. the highest power output of the engine will come later in the rev range (maybe 6000 rpm) power is needed most when getting the car moving, once moving it takes less power to accelerate. the CVT system will restrict the engine from reaching that upper rev range by adding more load onto it
@RustyNex not complete correct, it would depend upon the mapping of the CVT, the CVT system can be set up to allow the engine rev to near redline before moving up through the ratios, but unlike an auto of manual box there would not be the large drop between gear ratios.
@kingjimsixsix5 that depends on the CVT system, the CVT system i am thinking about uses centrifuge to govern the position of the belt (or ratio if its a pinch roller type system) if the position of the belt is controlled by a computer etc then yes it could be set to always be in the engine's optimum power band, and then the lack of RPM drop during gear changes would give it the advantage over a geared car (depending on if there is more power loss or less in this type of transmission of course)
@RustyNex But engines only make peak power at a certain rpm. aka the peak of the power band. A cvt if set up for peak performance can take advantage of the peak of the power band from 0 mph to top speed with no shifting losses, although there may be more parasitic losses do to the shift mechanism.
Im 14 and i came up with this principle while spinning the tip of a pencil after state tests. I observed the closer to the tip, the faster the pencil spins and visa versa. I told my dad of my awesome idea to use this as a new principle in transmissions when he told me to look up CVT on youtube. I did. Now im depressed... This sucks
@597Ryan you found it by yourself while you doing something totally unrelated activity as depressing? it called revelation, you should be grateful and proud. Just because someone found it before you doesn't mean it sucks.
I have seen the maxima with this transmission, when you punch it and keep it floored it revs the nuts off of the car, which could lead to a blown engine if the revs stay that high for too long, my advice would be to get a manual.
CVT IS Awesome when compared to shit clutch pack/Gear auto Trans.
its simple, reliable, smooth, and efficient! AND the thing about efficiency is that yeah its better when it comes to MPG but it also looses less power then an old auto, this translates into more WHP.
CVT's SUCK. Don't buy a car with CVT. it's supposed to be more efficient but that's questionable, it's not worth the extra 2 or 3 miles per gallon. and also the engine is not as smooth meaning you can hear it working all the time. Also all CVTs that I've driven sound like they strangle the engine, every single one of them. That noise the worst part about the CVT.
the cvt's have good points,but they also have bad.rokon was probally the first full size race bike that ran them.they were also the first to use disc brakes.this was in the early 70's.they had to use disc cause the tranny freewheels when the power is cut off.they also were not sealed and any mud or water greatly reduced power to the wheel.i was stuck in a mud bog to my axles and a rokon near me was stuck much deeper. they probally used the cvt becuase they went with a sachs snowmobile engine
CVT has nothing to do with handling and also drive. It has to do with engine operation. All CVTs, at least with the current technology, sound like they strangle the engine. They all have that sort of grinding sound and also due to the technology there is always a delay in power output vs a conventional gear transmission which is always "ready" to go.
@demin2609 thats not really the case, williams F1 developed a CVT system for there F1 car but the ruling body outlawed the system before the car got to race. cheers for the comment
Volvo tried them out 340's but because of different reasons they weren't exactly popular among europeans (when driving in wet conditions for example the belt would start to slip for example.)
Nowadays with never versions like the ones in some Dodge ( i think) They'd probably work. But i think they'd be much more boring to drive aswell.
@TheWTFers Actually hybrids might have that soon, because when the engine turns off and it is in electric mode it is virtually silent. This transmission is not in your car, it is just showing how the concept works. Your car has 2 plates and a V belt
OMG wow this is way cool. I am blown away, I know a heck load about cars, but just got an insight today and I was completely clueless to what was going on. I was reading the manual trying to figure out why my car was not shifting into second, third and so on. LOL my god technology has gotten the best out of me.
One more thing before I go,. I had a 72 nova with a laughable powerglide trans,. Off the line never spun tires but lightning fast. first gear upwards of 55 mph, but I can alter that by my driving. With a 307 engine people thought I had a big block under the hood,. It's all about gear ratio. Miss that car, except for the old technology, was a good, fast(quick), car, good looker in copper(gold) and gave it away for 1200.00.
i just want to fabricate a vehicle in which i am giving front drive power by motor and rear drive power by engine. However the two sources must work in synchronisation as unequal power by both sources will result in untuned performance. If there is any mechanism by which i can move my vehicle with same velocity from both the sources then please let me know.Looking forward to some help.
i just want to fabricate a vehicle in which i am giving front drive power by motor and rear drive power by engine. However the two sources must work in synchronisation as unequal power by both sources will result in untuned performance. If there is any mechanism by which i can move my vehicle with same velocity from both the sources then please let me know.Looking forward to some help.
@thakurpawansingh a torque converter would possible be the best solution to merge the rotational power of both sources, another possible solution would be to match the engine performance curve by controlling the frequency using a PLC linked to the electric motor.
@jksnow500 Actually, if the CV transmission breaks down, replacing parts is very straightforward compared to other transmissions. You are dealing with two cones and a chain, not a "swiss watch" of gears and valves all of which can catastrophically fail if one of the clutches in a planetary transmission fails. Toyota has made some legendary vehicles in its history. Its unfair to label Toyota as "another asian brand" when Toyota has lead in a lot of automotive development we enjoy today.
12 years ago a friend and I were talking about this two cone chain concept, you could slide a chain back and forth. No edge wear as with the conical pulley systems. But the question was how to keep the timing of a chain on the variable pitch of the cones.
You guys did it.
gavincurtis 2 days ago
Turn off the damn music!
ruizhernandeztrustfi 4 days ago
How does the belt move to the right position?
dabrowmj 1 week ago
1:17 to skip to video demonstration
stangrits 1 week ago
Comment removed
stangrits 1 week ago
There's no way to rev the engine and peel out.
bisbeejim1 1 week ago
How much is a used cvt transmission for a 2008 jeep patriot? Please help me out
MrMatorral123 3 weeks ago
What triggered the chain/belt to move?
croissantmania 1 month ago
@croissantmania im trying to understand that myself. i thought of two ways, it could be electronic control or the faster the cvt or gear its spinning it move up to higher gear. its very nice feature.
BlueRice 1 month ago
My old Honda Fit has it and just love it! I'm looking for a new car w/ a CVT....
neusathome 2 months ago
BUY A CAR WITH A MANUAL GEAR BOX!
Crazychicken224 2 months ago
I had a cone type cvt setup on one of my mouse trap cars for school, I didnt have enough time to refine it, but when I had the wheels spinning off the ground it worked great, I just couldnt get the ruber band tight enough for it to move itself..I figured it wouldnt work, but i wanted to try.
NathansBackwoods 2 months ago
the cvt was meant for hybrids. nissans and some 2005 fords have them even though there not hybrid.
jason123456789210 2 months ago
This has been flagged as spam show
Great video keep up the good work.
tillasmax 3 months ago
ur cvt became a ctv at the end of the video.. ;-)
IzzyLL 3 months ago
Did you even read this back when you wrote it?? it says CTV instead of CVT at least twice in the vid.
monkeyboy85 3 months ago
@kingjimsixsix5
youtube is for VIDEOS, not text sheeeeeeeeeesh! if i wanted to read about it, i wouldve used wikipedia!
johnnytheprick 3 months ago 2
CVT's are great but I personally like the Planetary Gear system that in in the 2010 Prius. I do like a CVT because it is smooth and you don't notice any transfer of power at different speeds. I have never liked the gear changing feeling of the old automatic transmissions.
GoMetricToday 3 months ago
This has been flagged as spam show
that russian guy said, we are not foreigners, come in Russian and very little video....... WHAT??? thumbs up so people can see
treck43 3 months ago
Some clever people out there!
whitedawg1984 3 months ago
German innovation from Mercedes benz!!
logelamutp 4 months ago
Juke
rayamanelly 4 months ago
I'm sold, can't wait to buy my hike.
rayamanelly 4 months ago
why not just put a link to Wikipedia
celticbobb 4 months ago
Interesting, because the Evans Friction Cone variable drive, was patented in 1884 and 1887 which is basically what this design is based on.
shades2 4 months ago
I invented this in 1982 - 83. The significant issue with this design is very simple....and evident....due to the lack of sound during the demo. Like my prototypes, it will be noisy as hell and vibrate like crazy, the vibrations mostly unnoticeable in the lower revs, but becoming increasingly evident in the higher bands. Oh and "JDdaDJstressed" a torque converter is, for all intents and purposes, a clutch.
FiftySevenChevy1 4 months ago
song name-"smoother than a C.V.T."
mb013962 4 months ago
i had a similar idea. bit instead, my idea was just to have one 'gear' change in size by expanding prongs, powered by hydraulics. it would therefore need to have a wide belt to connect it to the axle coming from the engine - it won't be able to use and teeth, hence the belt. but it's a bit more simple than this.
the only problem is the strength of the belt, and possibility of loss of friction - a problem gears and chains don't have.
YeTenuousUmbrae 4 months ago
Could you let us know ahead of time that the video sucks ass?
myironlungca 5 months ago
wouldn't a torque converter be able to immitate the same effect as a cvt and probably be more reliable?
JDdaDJstressed 5 months ago
@JDdaDJstressed The cvt can create an infinite amount of gear ratios, helping create more linear acceleration and better acceleration. Torque converters are connected to the flywheel, and so the output turbine shaft (of the torque converter) can rev as high as the engine rpm, but since it has no gears a transmission must be used in tandem.
EngineeringExplained 5 months ago
@EngineeringExplained but torque converters can immitate the effect to some degree right? is that how trains work? cos they rev really high and gradually speed up.
JDdaDJstressed 5 months ago
@JDdaDJstressed Torque converters can rev higher than the output shaft, correct. Think of a torque converter as two fans to put it simply. One fan is connected to the engine, the other the transmission (and therefore rear axle, wheels, etc...) The engine can rev high, spinning the fan very quickly. The transmission fan will gradually catch up to this speed. It's almost like a jetski. When you "floor it" in a jetski, the engine revs the impeller at top rpm, but it takes time to reach max speed.
EngineeringExplained 5 months ago
This has been flagged as spam show
@JDdaDJstressed Torque converters can rev higher than the output shaft, correct. Think of a torque converter as two fans to put it simply. One fan is connected to the engine, the other the transmission (and therefore rear axle, wheels, etc...) The engine can rev high, spinning the fan very quickly. The transmission fan will gradually catch up to this speed. It's almost like a jetski. When you "floor it" in a jetski, the engine revs the impeller at top rpm, but it takes time to reach max speed.
EngineeringExplained 5 months ago
@JDdaDJstressed yes they can but coast a lot of money but and electronics they shift just as smooth if you dont beleive me go test drive a M56 Infiniti smooth as glass. in short CVT's too little too late
Also can someone tell me what the life span is on the belt ?
E3lcpl 4 months ago
this is not very good, i mean, it's good but it has flaws so a redesign of this system would be a good thing
WXIIIR 5 months ago
"thripple"??? BWAAAAAA-HHAAAAAAAAAAA!
RoscoesRiffs 5 months ago
**NEW HIT SINGLE: SMOOTH LIKE A CVT!**
mb013962 5 months ago
Hey like could you use this an AC powered treadmill to vary the rpm infinitly? I am thinking of doing it but I want to get the torque and rpm right for the treadmill.
MrRjm88 5 months ago
i seriously hate the feel and sound of a CVT ... most Nissans have them and it can become very annoying - i understand the concept and reasons for the CVT, but as a car enthusiast just can't stand them
disengagejam 5 months ago 25
@disengagejam I hear you, but CVT will become more main stream, a few years ago in car review it was all about the engine capacity, Bhp and how the car was to drive, now car reviews focus on emissions and fuel economy. for us petrol heads there is no replacement for displacement.
kingjimsixsix5 5 months ago 16
@kingjimsixsix5 Yeah i mean the prius has one... It works great for that app but sooo lame lol
Pip2andahalf 5 months ago
@kingjimsixsix5 No replacement for displacement? It's called boost.
jaheenan77 5 months ago
@kingjimsixsix5 cvt's have been around for 30 years in the motorcycle world they are noisy and will always be noisy its just they way they are. for a long time they couldn't make one to handle the Hp that car motors put out. so i wouldnt see these on performance cars any time soon
E3lcpl 4 months ago
Comment removed
Terratracks 4 months ago
@kingjimsixsix5 Isn't the CVT more about efficiency of power transfer in general? I mean, sure, displacement helps and efficiency helps too... but I think that if you pair the displacement up with a CVT it would be much better than just having high displacement... am I wrong?
MiniDevilDF 4 months ago
@kingjimsixsix5 Actually, there are three good replacements for displacement... Turbos, Superchargers and Nitrous :)
thequietguy7 3 months ago
@kingjimsixsix5 hi are you the owner of the CVT at the end of the video or do you know where i could get one? Thank you
AMCJav69 3 months ago
@kingjimsixsix5 The less displacement the better. Small displacement high efficiency makes more sense than high displacement low efficiency.
madjimms 2 months ago
@kingjimsixsix5 I have to disagree with you:CVT is a thing that can be considered a side line in modern transmission development since DSG transmissions have been developed.No high pressure oil needed and no hp/torque limit as well.
00G000 2 months ago
@kingjimsixsix5 lol yeah you also need special fluid for them too, no universal fluid for these trans.
DarthSharingan101 1 week ago
@kingjimsixsix5
CVT is becoming more mainstream on economy cars. The belts slips on higher performance vehicles rendering them almost useless. Dual clutch units are going to become more mainstream.
Also car reviews continue to be about HP and how the car is to drive. I have yet to read an article on Motortrend, Car and Driver, or Road and Track that focuses on emissions and fuel economy.
Your "no replacement for displacement" comment makes no sense in that context either.
redliner90x 1 week ago
@disengagejam Plus, regardless of how the "cvt" maintains constant power output over the traditional planetary gear trans, the fact is a cvt has very low power handling vs any other form.
cowmilky 3 months ago
@disengagejam CVT's and rotary engines are better in terms of engineering/science principles than standard transmissions and piston engines. So why are they dominant? We have used them for long after they dominated the market (due to historical reasons) that it is very difficult as you say, to change to something that is "wierd". I do own a car with CVT. CVT was not part of the buying decision but it was very wierd (at the begging) to get used to a car that does not give you gear shock.
tecnocato 3 months ago
@disengagejam i agree 100%.... i have a 2012 VW r32 and it has a DSG, personally i prefer it... (manual is best imho)
Crazychicken224 1 week ago
@Crazychicken224 -- great car choice (you must mean the new Golf R) ... i have a 07 GTI w/ a DSG and its amazing =D
disengagejam 1 week ago
@disengagejam I do mean the Golf R... lol Yeah this is my 2nd VW, My first one was a manual 6spd, but its a pain in the ass to drive stick in the city ... so DSG is second best thing imo. Love them VW's! and i will for as long as they NEVER use a CVT haha
Crazychicken224 1 week ago
This has been flagged as spam show
@disengagejam I do mean the Golf R... lol Yeah this is my 2nd VW, My first one was a manual 6spd, but its a pain in the ass to drive stick in the city ... so DSG is second best thing imo. Love them VW's! and i will for as long as they NEVER use a CVT haha
Crazychicken224 1 week ago
@disengagejam I do mean the Golf R... lol Yeah this is my 2nd VW, My first one was a manual 6spd, but its a pain in the ass to drive stick in the city ... so DSG is second best thing imo. Love them VW's! and i will for as long as they NEVER use a CVT haha
Crazychicken224 1 week ago
This has been flagged as spam show
@disengagejam I do mean the Golf R... lol Yeah this is my 2nd VW, My first one was a manual 6spd, but its a pain in the ass to drive stick in the city ... so DSG is second best thing imo. Love them VW's! and i will for as long as they NEVER use a CVT haha
Crazychicken224 1 week ago
I work at nissan, since i wash cars all day my favorite remains to be the nissan versa hatchbacks, why, CVT, its reliable, very simple compared to gears, easy to work on, and faster
Brendon00000 5 months ago
ok good job but you could have shown the control mechanics that push the belt along .
oobuc5 5 months ago
my Daf 44 did this 60 years ago !
oobuc5 5 months ago
now i get this ty
CrazyMan15218 5 months ago
How do you control how the chain moves along the rollers?
jimbob325i 6 months ago
@jimbob325i , I had the same question. It looks like there's a control arm under the cones that guides the belt across.
netkev92 6 months ago
dude, u completely missed the point of twin and triple plate clutches. these clutches are designed for minimal slip and can withstand a much higher amount of torque because the extra plates allow for increased surface area which in turn provides more friction. that is the reason race cars use these types of clutches. besides, many race cars today including F1 are using a MCT that can shift gears in 10 thousandths of a second =) look it up if u dnt believe me haha
FutebolFanatico001 6 months ago
The "fins" look a little flimsy, but also look more efficient than running a belt or rollers over a smooth surface. No guaranteed "mesh". Although the Nuvinci CVT offers a boundary-layer, fluid dynamic, solution, this one looks like, with some work could handle at least 500hp/500lb-ft. CVTs are maybe 10 years from being fully acceptable.
DocWolph 7 months ago
@DocWolph unfortunately i doubt that. if most people still can't get their head out of the clouds and admit internal combustion engines are outdated tech then i doubt they would accept CVTs with such open arms. they will prob find some cheap excuse or something
FutebolFanatico001 6 months ago
so how do you idle a cvt?
willjoh08 7 months ago
@willjoh08 Torque converter or a clutch, I guess.
DocWolph 7 months ago
Dear Sir/Madam,
When I stop at a traffic queue for a minute or over, and I am tired applying the brake, should I shift the CVT gear into N, or P and applied the hand (foot) brake. What is best to avoid wear and tear on the CVT gear box
Many thanks
k.k.
kkyip2006 7 months ago
@kkyip2006 You might want to consult Nissan and Subaru about that as I know they do sell cars with CVTs in them.
DocWolph 7 months ago
you know how in a traditional transmission when you stomp the gas pedal the engine revs high almost instantly but in a vehicle with cvt (Nissan Altima) for example the engine revs rather slowly. Is there some way the cvt can be programmed to reach the engine's powerband quicker
Jharp82 7 months ago
its not actually better than gears because the CVT uses one single rev range, where as a geared car can use the full power of the engine in each gear. CVT cars must reach a certain speed before the power band of the engine can be used
RustyNex 8 months ago
@RustyNex You don't understand what you are talking about. The max power of the engine is achieved at its one best speed. Varying speed doesn't help anything.
scooler 8 months ago
@scooler not when it comes to acceleration, by using the upper half of the rev range a geared car can out accelerate a CVT car. the highest power output of the engine will come later in the rev range (maybe 6000 rpm) power is needed most when getting the car moving, once moving it takes less power to accelerate. the CVT system will restrict the engine from reaching that upper rev range by adding more load onto it
RustyNex 8 months ago
@RustyNex not complete correct, it would depend upon the mapping of the CVT, the CVT system can be set up to allow the engine rev to near redline before moving up through the ratios, but unlike an auto of manual box there would not be the large drop between gear ratios.
kingjimsixsix5 7 months ago
@kingjimsixsix5 that depends on the CVT system, the CVT system i am thinking about uses centrifuge to govern the position of the belt (or ratio if its a pinch roller type system) if the position of the belt is controlled by a computer etc then yes it could be set to always be in the engine's optimum power band, and then the lack of RPM drop during gear changes would give it the advantage over a geared car (depending on if there is more power loss or less in this type of transmission of course)
RustyNex 7 months ago
@RustyNex But engines only make peak power at a certain rpm. aka the peak of the power band. A cvt if set up for peak performance can take advantage of the peak of the power band from 0 mph to top speed with no shifting losses, although there may be more parasitic losses do to the shift mechanism.
RCFLYER83 7 months ago
bye bye clutches, c ya, or not
BeyondXMask 8 months ago
@BeyondXMask indeed
kingjimsixsix5 8 months ago
You are the best, now, I can understand how it work
Brincandopabajo 8 months ago 12
@Brincandopabajo cheers mate
kingjimsixsix5 8 months ago
мы не иностранцы,давай на русском языке и видео совсем мало.
ivan77491 8 months ago
@ivan77491 sure why not.....
kingjimsixsix5 8 months ago 69
@kingjimsixsix5 It says "we are not foreigners, come in Russian and very little video."
UnboundLegend 6 months ago
@ivan77491 uchi inostrannij.
Ingichs 5 months ago
@ivan77491
Jharp82 4 months ago
@ivan77491 Что тебе тут не понятно?
DragonToko 4 months ago
@ivan77491 Кто призвал нас иностранцы?
Volvoforlife08 3 months ago
@597Ryan I rly know how that feels ¬¬
thdmtr 8 months ago
this is most coolest thing i ever seen.
MrDaldagnuur 8 months ago
i got one of these on my lawnmower
pimprock23 9 months ago
I love CVTs! I just switched from one to a normal one, and it's like night and day. I feel like I'm breaking the car with a normal auto.
tylermcdonaldd 9 months ago
Im 14 and i came up with this principle while spinning the tip of a pencil after state tests. I observed the closer to the tip, the faster the pencil spins and visa versa. I told my dad of my awesome idea to use this as a new principle in transmissions when he told me to look up CVT on youtube. I did. Now im depressed... This sucks
597Ryan 9 months ago 2
@597Ryan you found it by yourself while you doing something totally unrelated activity as depressing? it called revelation, you should be grateful and proud. Just because someone found it before you doesn't mean it sucks.
manunggal 9 months ago
cheers!
assailant85 9 months ago
nice demonstration
ashwinisidhu 10 months ago
is there a design patient mikec5151 my e-mail is mkcchrn@yahoo.com
TheMikec5151 10 months ago
i have an application for this cvt chain drive is there a patient
TheMikec5151 10 months ago
bad gear CVT i don,t like it because i want to mod my car but i am scared the CVT will get damaged and from 0-60 ever car win me
ahmadturbo 10 months ago
Press 6 to get straight to the useful bit!
boo66 10 months ago
the last 15 seconds , said it all !! thank you
Rajachemayel 11 months ago
I finally understand it
MrPeperejil 11 months ago 6
@MrPeperejil cheers
kingjimsixsix5 11 months ago
stupid stupid music
mewhite949 1 year ago
Anderson CVT seems to have gone out of business. Am I mistaken?
infiniteDefinitives 1 year ago
You keep spelling it CTV in the video......edit much?
kc550 1 year ago
Could have done without the insane music
mtwseneca 1 year ago 2
dam i was thinkin of engineering this type of transmission,but different view/point
Briansantiago11 1 year ago
I have seen the maxima with this transmission, when you punch it and keep it floored it revs the nuts off of the car, which could lead to a blown engine if the revs stay that high for too long, my advice would be to get a manual.
crackerisntme 1 year ago
This could have been done with an image or even a paragraph. Instead you made a 2 minute long "video" of words.
FoxHoundUnit89 1 year ago 61
@FoxHoundUnit89 glad you enjoyed it mate.
kingjimsixsix5 1 year ago 4
@FoxHoundUnit89
i know whats to explain its a snowmobile transmission in a car with a steel belt, i see no innovation!
1979rm250 1 year ago
@FoxHoundUnit89 and you watched it, choad.
markespo1 11 months ago
@FoxHoundUnit89
Shut the hell up this video is a great explination
ian27293 5 months ago
the way the text rolls out and the spacetrance music and all of that, it's megaman all over again hah
LegendarySkoolBoy 1 year ago 10
@LegendarySkoolBoy Cheers mate
kingjimsixsix5 1 year ago
CVTs are slower than their manual counterparts it's that simple. the also NEVER have better fule consumption
blondemax 1 year ago
CVT IS Awesome when compared to shit clutch pack/Gear auto Trans.
its simple, reliable, smooth, and efficient! AND the thing about efficiency is that yeah its better when it comes to MPG but it also looses less power then an old auto, this translates into more WHP.
CVRealMan 1 year ago
what is the back ground music?
metacats 1 year ago
@metacats the track is called pulse, from album sports promos vol 1 from freeplay music. cheers.
kingjimsixsix5 1 year ago
CVT's SUCK. Don't buy a car with CVT. it's supposed to be more efficient but that's questionable, it's not worth the extra 2 or 3 miles per gallon. and also the engine is not as smooth meaning you can hear it working all the time. Also all CVTs that I've driven sound like they strangle the engine, every single one of them. That noise the worst part about the CVT.
ejuoi 1 year ago
the cvt's have good points,but they also have bad.rokon was probally the first full size race bike that ran them.they were also the first to use disc brakes.this was in the early 70's.they had to use disc cause the tranny freewheels when the power is cut off.they also were not sealed and any mud or water greatly reduced power to the wheel.i was stuck in a mud bog to my axles and a rokon near me was stuck much deeper. they probally used the cvt becuase they went with a sachs snowmobile engine
tkrinc 1 year ago
It is used in many cars now..Nissan uses it and Suzuki in its new Kizashi and SX4, which I just bought... Love the smooth drive and great handling.
sprichbeeke 1 year ago
CVT has nothing to do with handling and also drive. It has to do with engine operation. All CVTs, at least with the current technology, sound like they strangle the engine. They all have that sort of grinding sound and also due to the technology there is always a delay in power output vs a conventional gear transmission which is always "ready" to go.
ejuoi 1 year ago
Shit is not reliable, STAY AWAY FROM CVT, saturn had it almost killed me on the highway.
TKDyeh 1 year ago
Hello, thank you for the video and info...
What makes the chain move, and how does it know when to move?
Do you need an electronic device which reads the rpm and engages the chain?
I see something under the cones moving, but is it free and going with the flow, or is it forced?
Thank you for your reply if you get to it.
strayunderwood1 1 year ago
why this tehnology isn't used in cars?
Because it can't handle more power and low lifetime!
The ideea is great thow...
demin2609 1 year ago
@demin2609 CVT was used in race cars, but it got banned because it made them too fast
pantstofry 1 year ago
@demin2609 thats not really the case, williams F1 developed a CVT system for there F1 car but the ruling body outlawed the system before the car got to race. cheers for the comment
kingjimsixsix5 1 year ago 2
@kingjimsixsix5 it would be one less thing for the f1 driver to think about...... fia nerds!
fj9fl 1 year ago
@kingjimsixsix5 F1 regulations are full of crap and keep the fun stuff at bay. Soon it will be just like stock car racing, with all the same cars.
Veikra 1 year ago
@kingjimsixsix5 and in an f1 car it only needs to last 1 or 2 races.....
a41forsaken 1 year ago
@a41forsaken yes but look at the stresses and pressures that a CVT would go through during a race compared to an average car touring about town.
kingjimsixsix5 1 year ago
@demin2609 Uhm, it is. Audi uses it and has done for years. Subaru uses CVT's in a lot of models.
There is a limit to how much torque it can handle, though.
kzil 1 year ago
@demin2609 these are used in cars. the ford 500 and dodge caliber use them. those are the only 2 i can think of atm though
RicerEater1978 1 year ago
@demin2609
Volvo tried them out 340's but because of different reasons they weren't exactly popular among europeans (when driving in wet conditions for example the belt would start to slip for example.)
Nowadays with never versions like the ones in some Dodge ( i think) They'd probably work. But i think they'd be much more boring to drive aswell.
jeba189 1 year ago
hey, nice explanation!
how is the the background song called?
thx.
gr8gr8zum76 1 year ago
@gr8gr8zum76 the track is called pulse, from album sports promos vol 1 from freeplay music
kingjimsixsix5 1 year ago
@TheWTFers Actually hybrids might have that soon, because when the engine turns off and it is in electric mode it is virtually silent. This transmission is not in your car, it is just showing how the concept works. Your car has 2 plates and a V belt
chromeharris 1 year ago
OMG wow this is way cool. I am blown away, I know a heck load about cars, but just got an insight today and I was completely clueless to what was going on. I was reading the manual trying to figure out why my car was not shifting into second, third and so on. LOL my god technology has gotten the best out of me.
TheWTFers 1 year ago
there are 2 cones there
the first one is connect with the engine and the 2nd one is connect with the wheel?
in that case ,must they be "cones" ? cant they be silinder?
slowerogue 1 year ago
How did you get William Shatner to do the commentary?
francovance1 1 year ago
Comment removed
paintballgundown8 1 year ago
VW's DSG is the best....!
jeomars 1 year ago
@jeomars lol not
poop4256 1 year ago
thank you alot
but. is the power which producted in the engine same that one which transferd to wheels
when the belt be in the middle of cones ?????
& thanks alot again
smsquatro 1 year ago
One more thing before I go,. I had a 72 nova with a laughable powerglide trans,. Off the line never spun tires but lightning fast. first gear upwards of 55 mph, but I can alter that by my driving. With a 307 engine people thought I had a big block under the hood,. It's all about gear ratio. Miss that car, except for the old technology, was a good, fast(quick), car, good looker in copper(gold) and gave it away for 1200.00.
TheLivingDeadOne 1 year ago
This is technology taken from a ten speed bicycle
TheLivingDeadOne 1 year ago
so easy to make, think of, and understand. And regular transmission came first, they are so complicated
lnd1o1 1 year ago
@ ropoly, engine breka with cvt is very limited. You need good breaks on your vehicle
enfielddnepr 1 year ago
in the video, you keep saying CTV fyi
Stompy77 1 year ago
This mechanical feature is very amazing, the bad thing is that it is nearly imposible to do it in lego :(
AISC95 1 year ago 4
@AISC95 good point, i think a letter of complaint to the people at lego is in order.
kingjimsixsix5 1 year ago 3
This has been flagged as spam show
@AISC95 a guys just made it out of lego
PhoenixTamer2310 1 year ago
whoa!
magepwnzer 1 year ago
Cvt is cool but manual is way more fun.
MicroOrginisum 1 year ago
This has been flagged as spam show
i just want to fabricate a vehicle in which i am giving front drive power by motor and rear drive power by engine. However the two sources must work in synchronisation as unequal power by both sources will result in untuned performance. If there is any mechanism by which i can move my vehicle with same velocity from both the sources then please let me know.Looking forward to some help.
thakurpawansingh 1 year ago
Comment removed
thakurpawansingh 1 year ago
i just want to fabricate a vehicle in which i am giving front drive power by motor and rear drive power by engine. However the two sources must work in synchronisation as unequal power by both sources will result in untuned performance. If there is any mechanism by which i can move my vehicle with same velocity from both the sources then please let me know.Looking forward to some help.
thakurpawansingh 1 year ago
@thakurpawansingh a torque converter would possible be the best solution to merge the rotational power of both sources, another possible solution would be to match the engine performance curve by controlling the frequency using a PLC linked to the electric motor.
kingjimsixsix5 1 year ago
every machine can be built
hydraulically, mechanically, electro-magnetically.
almalazi 1 year ago
you dont have to be a genius to unterstand this transmission, i've built the same with Lego when i was 10
Tecnogas69 1 year ago
This is very old technology.
Kdog54902 1 year ago
@Kdog54902 so is the wheel.
kingjimsixsix5 1 year ago 21
that wouuld be hell if that breaks but hey at least it is not on a toyoda!!!!!
jksnow500 1 year ago
@jksnow500 Actually, if the CV transmission breaks down, replacing parts is very straightforward compared to other transmissions. You are dealing with two cones and a chain, not a "swiss watch" of gears and valves all of which can catastrophically fail if one of the clutches in a planetary transmission fails. Toyota has made some legendary vehicles in its history. Its unfair to label Toyota as "another asian brand" when Toyota has lead in a lot of automotive development we enjoy today.
LOLDISNEYLAND 1 year ago
@LOLDISNEYLAND modern CVTs do not use the twin cone mesh design, they use more complex designs that may be more costly to repair.
arbpotatoes 1 year ago