ฝัง
- เผยแพร่เมื่อ 29 ธ.ค. 2016
- Which is better: Manual or Automatic transmission? This debate has been present for the last seven decades. Manual and automatic transmissions are completely different technologies, which use different configurations and principles. One is based on a simple gear pair, while the other is based on a planetary gear set. One uses a torque convertor, while the other uses a clutch pack. We will do a logical comparison of these technologies in this video.
We thank our patrons for making LE's educational service sustainable. Please support us at Patreon.com so that we will have the capability to release 2 videos/month.
/ learnengineering
Like us on FB : / learnengineering
Voice-over artist : www.fiverr.com/mikepaine
Please make a video on how to understand this video.
Tetea Chinzah 😂
Dyin
😂😂😂
Lol same 😂
Copy
It's all nicely explained and I still don't know what the fuck is going on.
I also tried to understand, but I failed.
Eightosaurus Spelunk hehe none-car guys problem.
Jus Like That You need to learn to write.
Eightosaurus Spelunk it's typing and I'm pretty sure he did nothing wrong.
to make it easier to understand, u gotta start with bicycles.. if u see a mountain bike or racer (those with several gears) then that is the same concept... smallest sprocket on pedal+largest sprocket on rear wheel=1st gear... larger sprocket on pedal+smaller on rear wheel=higher gears.. u notice when bikers try to climb uphill they mostly use 1st gear, although it takes a lot of pedaling to move the rear wheel to one rotation, it is still bearable
same concept with cars... 1st gear is the slowest just like uphill on bike with low gear BUT its got power..but when u go faster u should use higher gears because at that point, inertia is your friend, and u dont waste your engine power
I always thought an automatic transmission would just be a manual transmission but shifting it automaticlly
Me too!
That’s a robotic transmission)
Cheaper cars have that, 3 motors to replace clutch and the two movements the stick would make
@@Pascaleiro that must be what my sister's little old Suzuki uses
FR
I prefer a manual. Better control (engine braking for example), smoother shifting (provided you know how to drive a vehicle with a manual transmission), and better fuel economy. Also I've had automatics that at certain speeds and loads couldn't decide between 3rd and 4th gear and kept shifting between the two giving you whiplash.
İ can engine break with my automatic. For amount of time i can set the gear i want for short periods by shifters behind wheel. Or i can make it completely manual
I'd prefer manual if I wanted to drive for fun, and an automatic if I wanted to drive without thinking too much. I think in the long run cruise control w/ an automatic transmission has been shown to actually have the best fuel economy, at least if you are on a highway and don't have to brake frequently or speed up of course. I just can't imagine spending 8 hours on a roadtrip with a manual transmission, but I guess thats why SUVs don't really have manuals.
@@yesyes-om1po Road trips are probably the easiest drive in a manual though. Just throw it into your highest gear once you get to speed and just keep cruising. It's the commute that can be rough in a manual, especially if you live somewhere with heavy stop and go traffic.
I get it old man new stuff is hard to understand sometimes but all the things you listed have been an advantage for automatics for the last 15 years
Yes I do agree with you. Because they say professional drivers knows how to uses manual transmission and does use it most of the time.
You forgot to mention that manual is also a free anti-theft mean in the States
And also you can roll start if your battery is dead
Or drive with the starter if your out of gas.
@@edgeofforever7720 how?
@@jettproductions6145 how to drive without battery lol
@@cautarepvp2079
You put the car in first gear and crank it.
You can also start the car by putting it in gear rolling the car and then "popping" the clutch
manual transmission: ok, makes sense
automatic transmission: *_IT'S WIZARDS_*
Hahahahahaha I'm dying from this comment
My brain went stack overflow on automatic gear
this is y robots will kill humans
The author should apply a link to the planetary transmission setup explanation video.
Also heavy loads are using automatic transmissions since there is not much place for human error. Especially computer-controlled automatic ones. I mean relatively heavy like for example a tank transmission. Another example can be a system in the "semi-trailer" truck.
It is true you can put more on smaller manual transmission but in this case, you have to rely more on the operator skills. Also, a heavy-duty manual transmission becomes rough to operate if the applied load is raised very high while the system weight, placement, and size limitations occur. It's more due to the simplified clutch than the transmission box itself.
What's most important is the system's live-cycle overall cost. It's sometimes even more important than the physics ;)
It's automagic
As long I live in a region that gets snow, I will own a vehicle that has a manual transmission. There have been many times when I would have been hopelessly stuck if I had been driving an automatic. I was able to use the clutch and gas to "rock" the car out of a stuck spot. That probably shortens the life of the clutch, but it is better than being stuck in a snowstorm for hours or days.
If you're quick enough you can achieve this with an automatic too
Whether or not snow is a problem depends on the car itself and the tires. If that weren't the case sure some automatic shitbox would probably do a lot better in snow than an Iveco LMV
@Kaloyan Draganov Actually, it depends on whether people have any clue of what they are talking about. Obviously you don't.
@@LucidDreamer54321 It also depends if you are a larper who has driven an automatic once 20 years ago such as yourself. Do you even know how traction works?
@Kaloyan Draganov Do you even know how anything works?
The smoothness of the manual transmission is something that you learn with practice, so that can be a bit misleading information. In the other hand, it is recommended to have the engine engaged during breaking all the way before it starts to stall. By leaving the engine engaged you let your engine help you slow the vehicle down, saving a bit on breaks. I will also like to add that driving on downhills manual also helps to avoid the vehicle gaining too much speed, thus also not depending merely on break pads. Just saying…
The trade off then becomes how much wear you’re willing to put on your transmission. I prefer to just use my brakes since they’re easier to replace than a transmission. Definitely useful when going downhill though
Also I’ll add that you will use more gas using engine breaking and your engine will rev higher causing more wear and heat. I’ve decided that a brake pad job is easy enough than to stress my engine and clutch and trans. But for racing, engine brake is where it’s at.
@@BananaBabysthats just wrong, engine breaking doesn’t use any gas in injection engines
Only if you shift down while slowing down
@@tobiasbauer198 i mean yeah. If you don’t actually engine brake properly, it doesn’t save gas. But their statement was general.
I just press and hold W on my keyboard to accelerate.
Same
Gamer Moment
How to get called a nerd in a nutshell lol
underated comment
Hahahahaha
Manual transmission - Ok. I see. Ah got it make sense.
Automatic transmission - which gear? What color? Release which what?
Right?
Automatic transmission works by magic... or it is operated by rodents. It just works!
yes of course.
Gear Crimson
I know right! Even while driving, it's like, hey, wait, what, how, why...will it stop now? Will it move? What's happening????
But, with a manual, it's like, yup, I got this... I know what needs to be done!
Wow this video made me understand transmissions less
honestly, as much as traffic makes me wish i had an automatic transmission (seriously, operating the clutch and constant swapping between the 1st and 2nd gear is a nightmare)
i have to say, that in almost every other non-traffic situation, manual transmission is pure joy
you basically feel every single move you make
you can rev the engine if you want
you feel the sudden surge of power when you change the gear and quickly release the clutch pedal while revving the engine
i honestly recommend everyone to try the manual transmission at least a few times if it's possible
If you care about your transmission, you shouldn't release the clutch pedal too fast.
As the video explained, the Synchronizer Ring is matching the speeds, but if you release too fast, it doesn't have the time to actually do its work and as such tear a lot more.
And well, repairing a transmission is pretty costly.
@@kuhluhOG i agree, and by "quickly" i didnt really mean "instantly"
the sole feeling of sudden sharp shaking is probably enough to make most people understand that
also if you rev the engine enough before releasing, it will fit in just perfectly
@@rolsiglodowiasty1424 automatic : 8--D manual : 8------------D
I would reccomend people trying automatic at least once.. manual is manual and you feel the car and really handy on ice starting from second gear or in adding torque in corners playing with right leg.. it is the way to drive a car for millions of reasons. Automatic won't make a proper driver out of someone. Name me one car racer that drives automatic?
@@BushcraftEurope well, Formula 1 cars have a sequential half-automatic transmission
meaning: 7 forward gears (+ neutral + 1 backwards), they can only switch to gears next to the current one and not too fast, they don't have a traction interruption and they only choose which gear the car should be in (the rest is done by the software)
"never a smooth experience"
I take that as an insult
Marko Djurdjevic or you.
@Marko Djurdjevic no u
@Marko Djurdjevic it always isn't smooth. You can minimize feeling of jaggong to unnoticeable level but you can't get rid of it.
@Marko Djurdjevic you don't understand. It isn't about skills. It is about technology. It is physically impossible to do not loss power while changing gear you can drive like God. You can use mechatronice to automate manual transmission to have perfect gear changing. But you will never get rid of it. You can only minimize feeling of it because car have big momentum. And no. In modern automatic transmission there is no gap between.
@Marko Djurdjevic you need to learn about engeenering and probably not about driving. Your knowledge of physics is not a related to how many kilometers you have traveled man.
No no no no. You do NOT press the clutch before applying the brake. The sequence is ABC: foot off Accelerator, foot on Brake, when nearly stopped depress Clutch. This is keeps the clutch engaged until the last minute and the car is better controlled. Pressing the clutch first results in a surge forward - acceleration of the car. I am a UK driving instructor.
Nicole K exactly, I was about to say that... disengaging the clutch reduces engine breaking, which we dont want trying to slow down
Engine braking is not only helpful for control, but for slowing the car! Never, EVER release the clutch unless you are downshifting to improve engine braking!
+TRLWNC1 The way I've always taught my pupils, is not to change gear at all when slowing down. Change gear when you have reached your target speed, or use the clutch just before the engine shows sign of being unhappy when stopping. Changing gear disengages the clutch and makes the car less stable during those moments.
Nicole K unless you are racing.... ;)
Nicole K but you are very correct.
“This is why a manual transmission ride is never a smooth experience” and I took that personally
"Every time you need to change the gear, you must disengage the clutch"
*Me, a truck driver* Floats everything past 2nd
I drive a Jetta and I don’t use clutch past 2nd
Is it not equipped with synchronizers? If it is, by doing that, you are heating the synchronizers and f*cking them. If it's not, the clutch most be use just to start and to stop
I worked in a tractor that didn't had synchronizers, you only can get the gear shifting correctly, not grinding, if you don't use the clutch
@@jackh1577 be careful with your synchronizers
Do you also float everything future second gear or is it just past?
6:39 "Before you press the brake pedal, you have to press the clutch pedal" So wrong.. You should brake with the engine engaged until you almost reach idle rpm's, then press the clutch and brake further. That way you both save the brakes as well as the car's computer knows you're braking on the engine so it won't inject fuel = better milage and lower emissions.
But not until the engine stalls which is a risk if you brake from a high gear into a low speed.
When you drive manual you quickly get used to disengaging the clutch at the right time for the current gear. Also, this is not directed at these two comments, but the video also said that a manual is never smooth. Which is also wrong, you can achieve a smooth shift. EDIT - It can be smoother than any auto I've driven so far.
Johann Kuhn
Yes, but quite frankly it's very difficult to ALWAYS shift smoothly in a manual. There will almost always be some jerking at one point or another, especially if the engine's cold.
Makes sense.
Johann Kuhn
Yet, I prefer a manual. :)
you don't have to engage the clutch before breaking, that would lower the fuel efficiency. Press the clutch before the rpm get under the idle speed, that saves fuel and reduces the brake wear
Exactly!
@Dragneel Just engage the clutch when it's under 1000 rpm
@Dragneel dude, if you need to go from 100 to 0 in 5 secs, you should not press clutch man. Because you want to prevent an accident. Stalling your car is better than wrecking it
@Dragneel you don't, when you need to stop immediately just slam both pedals at once (emergency braking)
@@Agent-1220 yep both pedals decreases braking distance if the brakes get warm, you don't want to be having to stop the engine from spinning as well so disengage the clutch
I'm pretty sure that this video was made in us
Who's us
@@saucybaka4439 U.S
this accent is a U.S. accent, but I have a feeling that's not what you're talking about.
@@saucybaka4439 the UNITED STATES
It's indian
Thank You Engineers.
Your ingenuity is appreciated.
The people that invented these things are geniuses.
I'd love to see a similar video about electric car engines. Would the automatic gear system be the same?
An electric car dont need to shift gears as the 3 phase VFD controlled motor in modern electric cars operate between 0 to 7-8000 rpm with no problem while an internal combustion engine works best between 800 - 3000 rpm, hence the need for many gears to keep the engine in that speed range. Also the tourque is at max at a certain rpm for a combustion engine unlike the electric motor wich have 100 % torque from 0 rpm through its entire speed range.
Thank you for the awesome reply. We are going to explain all these things in our electric car video.
Learn Engineering Fantastic! Cheers to everyone making these videos. I love how clean, detail, professional and informative they are. You guys are awesome. :D
Most hybrid and electric cars use a CVT (continuously variable transmission). Which basically means that you don't have SET gear ratios. What happens is that the gear ratio gradually changes as you go faster, so as you accelerate lightly, the RPMS will stay somewhat in one place. If you Floor the gas pedal, the transmission will hold onto a lower gear ratio for longer to get that better acceleration. The simplest explanation I can give you is this: Picture a large cone shaped object, then picture a belt riding on that cone and attached to the transmission output. The gear ratios change by sliding that belt back and forth on that cone. It's like a bicycle, the bigger gears on the crank will give you higher ratios, and when the chain gets put on a smaller gear, the gear ratio becomes lower. The only fundamental difference between that and a CVT is that the CONE shape allows the belt (or chain) to slide up and down gradually, changing the ratio. Hope that answers your question!
Shadow Heart the answer would be no, most electric cars have direct drive, wich means no gears, no shifting. this is because an electric motor is not limited to a specific range of rpm like gas engines. they are much simpler with far less moving parts. they can deliver power to the wheels over a much wider range of motor speeds.
Tesla drivers: what's a transmission
Sonic557 automatic d and r
ACTUALY ANOTHER SCEANario!!!!!!!!
Widow: why my husband got burnt in tesla and i have to pay still for his stupuid car !!!!!!!
Sonic557
Tesla Drivers “ I LiKe BiScUiTs” 🤪
@crummyy no they don't. The motor is directly coupled to the wheels tharough a single gair pair and deferential. The motor doesn't stall at low speeds like an IC engine would so you don't need to disconnect it from the wheels
@00rphb get off your high horse
I know ALOT about cars.. But this video made me forget which was a bolt turns
You taught me what to feel for and where when I'm driving both. It feels nice to know what's happening as I'm driving.
I have new found respect for the people who have made the automobile what it is today.
Genius minds.
The Chiefs Thanks to the engineers at BMW,Ford,Mercedes and so on.
Automatic
@@whidoineedthis manual for life
Manual is good if one is paranoid of letting computers run the car though
“You can see that an automatic gear set has two inputs, and one output”
No I don’t lol
Bro made video for blind peoples 💀
Excellent video demonstration, thank you!
This is legit the only video that made me understand this thing and i had seen like over 30 the past year and never got it till now
"before braking, the clutch pedal must be pressed completely" - I bet every driving instructor on the planet want's to have a word right about now.
hahahahaha
Its much more easier to press the clutch and then press the brake
Why the hell they make us do the opposite
@@nonamezzzz To use the engine to help slow down. You even get warning signs on long downhill stretches to do this instead of braking constantly.
@@Henk14789 when my dad was teaching me to drive he told me about engine breaking and how good it is. He also added: clutches are more expensive than brake pads. 😂 Use your brakes to brake people, don't engine brake.
@@BennyJ69 Using engine brake doesnt signal following traffic that you are braking, this is good reasons to use the brakes.
@@groundloss Engine braking is good for when you have a long enough distance to go, or if you need to slow down faster than just letting go of the gas. Traffic behind you should have enough time to see you slowing down even without the brake lights--assuming they're not distracted by playing on their phones... And your engine can handle shifting back into a lower gear just fine, assuming you don't skip gears. Your brake pads will wear down a lot faster if you exclusively use brakes.
You don't have to press the clutch pedal while breaking unless you are going too slow which causes the engine to stal
I think he meant braking until you stop, like when you get a red light.
@@BosisofSweden I believe Daniel's talking about 6:35. He says that you _must_ press the clutch pedal completely before braking, which is not really true.
When you're slowing to a stop you leave the clutch engaged to take advantage of engine braking. Obviously you disengage the clutch when you get to a near stop, but you can absolutely use the brakes while taking advantage of engine braking to decelerate to a stop. If you're familiar with heel-toe technique for downshifting while braking, that's exactly what's happening to slow the car down.
@@phone4189 aha, okay. Yes, that is incorrect.
That is what he meant though it was confusing lol. I think most people put it in N far before they have to fully stop.
@@danielplasencia7271 no, they don't. You gear down and motor brake if you have learned to do it the correct way. If you end up to have to stop you use no gear as you wait och the lowest gear with the clutch down if you are about to go
Very Clear explanation, I've learned a lot
Understanding the mechanisms behind manual transmission is very helpful in learning to drive it.
My brain burned during the explanation of automatic transmission
Vule
Sane
It's not you. My cat could have meowed a clearer explanation.
Same dude
I tried to understand automatic transnission many times but understood nothing
Same, with automatic explanation my brain goes blank lol
This automatic trans gave me the “missile knows where it is because it knows where it isn’t” vibes
Dead
@@thatonehobgoblin3992 omg lol lmao frappucino, im dying sistaaaaaaaaa
@@HowToTouch omq deadass yass queen no cap
th-cam.com/video/_LjN3UclYzU/w-d-xo.html
@@Broken_Orbital lmao nice
6:36 That's one of the biggest mistakes. You never disconnect the engine, by doing so on a downhill slope momentum can really take your car. Engine braking is used combined with braking. Never disengage the clutch unless you're ready to stop completely. When you want to go slower, just go to a lower gear. Also on downhills, it's better to be in gear and using the brake to have almost no fuel consumption.
I thought I was the only one who noticed it.
The use of clutch while breaking is to prevent the engine coming to a halt while in gear, or in a complete stop, only.
They demonstrated it very poorly unfortunately. Engine braking is a well known and well used practice in cars with manual transmissions and fuel injection systems.
Types of engine braking:
VVVVVRRRRrrrrrrrrrrr
bdbbdbdbdrrrr (whoshhhhhhhhhhhhhhhhhhhhh)
@@bradyn4212 lol. Thats jake braking, different mechanism for slowing down a vehicle,
@@theedgarthefish4267 Yes an the second one with the woshhh would be an exhaust brake (on certain engines and vehicles it makes a hissing noise) and yeah I think they're technically still forms of engine braking, just diesels don't brake well on their own without mechanisms
"this is why manual transmission is never a smooth experience" yeah, if you're too lazy to get it right
lol newer cars with automatic slip too, or the computer is being dumb
Did he talk about anything you feel or was he talking about the speed curve? Very obvious the curve was the topic in that statement.
@@felipepubillones2768 yeah I know lol
I just watched a 1936 video about differentials... I understood it. It was 6 minutes, I know how differentials work now. No idea how transmissions work. Maybe the 1930’s have another video.
People that time, were simple.
There is a 1930s video on transmissions. I think it was called levers or something. I think this video expects you to have basic knowledge on mechanisms (such as planetary gears) whereas older videos go over more, albeit to less depth.
Just came from the 1938 Chevy one about suspension lol
"Spinning Levers" short film by Chevrolet made around 1936.
It is on YT.
VERY informative.
The channel name is 'US Auto Industry', for easily understanding these concepts.
6:38 is nonsense. You can brake without engaging clutch, just watch rpm to dont drop below minimum to dont stall engine
Thats my man, at least someone mentions that.
yup and actually engine helps in breaking
He mentioned, "Heavy Duty Equipment"... When you have a "Heavy Duty Equipment" going down on a long hill or mountain, you don't want your brakes to overheat, so you use the transmission as an engine braking system...
@@ImranQureshi-ig9kd only if you downshift
@@g0nzal0id the downshift is the immediate break , i m talking about engine break that u will feel if u release the race , the car will slow down , if u press the clutch u l see that the car slowing down isnt as quick as it would be without the clutch meaning the engine is stopping the car while in gear
Such a genius and perfect video. This is incredible, thanks!!!
Ps: I am Italian but I understood the video. Idk why some asks for an ecplaination of this video.
This channel is a gold mine !!!!!
You DO NOT have to press the clutch every time you want to brake in a manual car. You only press the clutch when you are going to stop completely (in speeds lower than ~20km). Furthermore, by applying the clutch before braking , it gets a little bit harder to stop the car since the car gets a little bit of extra speed! (because of the disengagement)
- This video is only one of many videos created by 'professionals' which makes the mistake of 'always' pressing the clutch before applying the brake. I think this happens since they do not actually drive manual cars. Or, maybe this have been a claim of automatic gearbox manufacturers at the introduction of automatic gearboxes! Who knows?! :))
I personally prefer automatic gearboxes with the ability to change gears manually (tiptronic). Automatic gearbox is the best for city traffic (especially in cities built on hills), while the manual gearbox is the best option for enjoying driving in roads and rally.
These guys are engineers, not professional drivers. I don't mind if they make a mistake about driving, as long as they explain the mechanism well
engine braking is fine, but can be less efficient (in terms of fuel) then just depressing the clutch and using the brakes. You can, however, stop rather quickly.
Huh? In a carberated car, maybe. But in a computer controlled engine? Not true. At. All. The computer can shut off the fuel flow completely while slowing.
However, if you disengage the clutch and let the engine idle, the computer fuels the engine. ;)
+TRLWNC1 is correct. In modern fuel injected cars, whether it be Gasoline MPI, GDI, or Diesel, when you let off of the accelerator all fuel injectors are turned off. This is why you should never take the car out of gear unless you are at a complete stop. That and it's safer to leave the car in gear.
the thing u say is about driving, the thing in told video is about mechanism. both are right in its own.
Something not mentioned - automatic has a noticable and significant lag in it. In a manual, when you step on the throttle, since you are mechanically connected to the transmission, power delivery is instant. In an auto, it takes a small bit of time for the torque converter to begin pushing the transmission forward. Then, if there is any shifting occuring, there is a significant lag before full acceleration.
Manuals, assuming you know how to properly drive one, acceleration is again, nearly instantaneous.
Yes. And there are chipsets that can speed up this process. I have one installed on my Chevrolet S-10 2018 and the difference is noticeable when you need power to overtake someone in the road or for going from a stationary position to instantly high acceleration. I would say is a must have for safety purposes since your car becomes much more responsive when needed.
shift bog is real on cars though. bmw e92 n54 has a really long shift bog
We have a hybrid Mini Countryman that seems to have solved this problem. The eletric motor provides instant torque.
Two ways to resolve this (I've tried both, they work): 1) use so-called SPORT mode, it forces AT to shift down when you slam that pedal and has a significantly less reaction time compared to regular AT mode; 2) modern AT have a kick-down, which activates when you push the accelerator down to the floor and then some (you'll feel the bump when you press it enough), that'll force AT to give maximum power at the current gear, but be careful not to overrev the engine.
There's also a third way, which is manual shifting, but I haven't tried this on the road yet, so can't recommend.
@@Nero_PR never realized Chevrolet released the S-10 in '18
Very well explained video. I didn't understand a thing but that's on me
You have more control over the car with a manual transmission.
Yes and its way more fun to drive
Understood Nothing :')
BUT it was fascinating to watch, isn't it? :D
Exactly xP
haha me too.I tryed to understand tho.
Yeah XD I don't Even Know How To Drive :P
why do you write like that
"it might seem like a simple mechanism"
L M not at all.
Reminds of all of the college textbooks that said "This is trivial and we leave it an an exercise for the reader." Like nah bruh , help me!
lol nope.
Yeah, not THAT simple, but then I saw how the automatic transmission worked and that was way, way more complicated.
LOL!!!
Never saw it that well explained. Thanks a lot!
Great tutorial
6:01 my man just went from first gear to fifth
haha yes big brain
Nice spot
He fried 2nd 3rd and 4th gear showing everyone how they work so now he has to redline 1st gear and feather 5th to get up to speed
It's reverse not the fifth gear
He was a movie character
ehhh
you can have a smooth driving experience in manual too...
and you dont need to disengage the clutch in order to slow down
This video is too oversimplified. EIDT: I do not want to say that I dislike the video. But this topic is actually way more complicated. This video gives a nice and well animated introduction and those who want to learn more can do so. I encourage anyone to do it.
Which video would you suggest that does not oversimplify? Also: can you point out at least a few points where it oversimplifies. I am not doubting you, on the contrary. I am learning, so I am really curious to understand that.
Cláudio Sampaio
I recommend starting with Wiki:
en.wikipedia.org/wiki/Manual_transmission
and
en.wikipedia.org/wiki/Automatic_transmission
The fluid coupling, also used in this video, is a part of many automatic transmission systems. Contrary to a clutch, it will always exhibit some level of slip and cannot completely "disconnect" the transmission from the engine either. Buses usually have a torque converter, which needs even more power to run but offers smoothness over efficiency, making diesel run busses accelerate equally like electric trolley buses. There are other transmission designs like the two clutch DSG automatic transmission which does not have a fluid coupling or torque converter, but even this type has its flaws (like when you decide to change from acceleration to braking or from motor braking to acceleration at the time of the transmission changing gears. Even this description is oversimplified.
Cláudio Sampaio one big problem is that this video shows the automatic as a superior transmission
the thing is that, if you are good at it, you can shift quicker with a normal (manual) than with an automatic. also the atomatic is way heavier than a manual
good thing about the auto is that you dont need 2 hand and 2 feet to drive it
most of the bolids are automatic , deal with this
Considering the situation when a vehicle is not running(parked in garage or parking area). Do we need to apply clutch If we want to change gears?
Here's the thing. Most big rigs don't have synchronized transmission. They require being double clutched and the engine speed matched to be able to engage the gears. The only time the clutch really does anything is when the truck is stopped. It's one of the biggest reasons why a lot of drivers don't use the clutch unless they are stopping or starting out. They call it "slip clutching".
If a stick is driven mainly for highway to and from work, and you practice this technique efficiently, you can have a clutch as long as the transmission and engine it is meant to connect. Automatics will blow up and cost at minimum $2500 at least twice before this happens.
"Let me introduce another planetary set that you still don't understand to explain how this is achieved. The output of the second planetary set is attached to the input of the first. It's simple!"
....
Pretty much always with the videos this channel uploads. They pop up in my feed as some kind of intellectual exercise where you have to google things elsewhere to understand them. These videos merely introduce the concept for me.
I understood it but I've worked on planetaries. Each stage it a multiplier and it just depends on how they add up depending on the power path.
@@timjohnson1199 Speak english doc, i aint a scientist.
@@Inferamusic Each stage of the planetary is sort of like a separate gearbox. So, each stage gets multiplied by the other. If 3:1 and the next stage is at 2:1 the output will be 6:1, or, if you have 1000 rpm coming in you'll have 6000 rpm going out.
There is a 1930's video. Watch it. It's a thousand times better than this one.
I've driven both manual and automatic, and I'm so happy II know how to drive manual and have a manual car, it is so much more enjoyable.
Misha Sleptsov There are no big traffic jams where I live, and they don't last longer than 1 - 2 hours, so it is really lovely!
Manuals are fun when the car has some power, but the manuals I've driver were low powered cars, so it wasn't really any fun.
+Flix
You are really lucky. where i live its traffic jams, frequent lights and constant up and down slopes.
It is a nightmare. CVT is the best choice where i live.
Misha Sleptsov... ah, driving stick for experienced drivers becomes so 2nd nature that it doesn't matter in a traffic jam, you don't think about it one bit...
Whats enjoyable about having to cancer around with the gears? Yeah you have better control, but for what? Most people can't even deal with that and switch gears too late and just waste fuel.
Can you make a video about CVT and DCT transmissions please?
Corrections:
Manual transmissions (in cars) use a clutch disc, not a clutch pack. An automatic transmission has several clutch packs, like pictured.
Its actually called a clutch pack in a manual transmission
@@joeseverythingchannel6564 "clutch pack" implies more than one clutch disc, and since manual transmissions use only one clutch disc that can not be referred to as a pack.
Besides, the pictures are wrong.
Work on learning before posting.
Actually the clutch pack includes the throw out bearing, pressure plate, friction plate (on flywheel applications where replaceable), and the clutch housing in the bell housing so eat it buddy do your research before responding
@@Iowa599 oh and fyi there are manual transmissions with upwards of 4 clutch disks in them its just that the most common stock clutches only have one. Most clutch upgrades include 2 or more clutch plates to increase the surface area of the friction material
Manual is never smooth? I dare say my shifting is smooth as butter sir!
Guts Puck hmm. A wild Berserk fan appears.
I think its said for beginners 😂
Same here. every car I have ever owned over the last 28 years was a manual.
I shift without even thinking and it's very smooth.
It’s relatively less smooth than automatic transmissions.
I felt personally attacked when he said never
Dear friends, Please support us at Patreon so that we can achieve the goal of 2 video release/month.
www.patreon.com/LearnEngineering
Learn Engineering
Learn Engineering Dear Learn Engineering,
Will these principles covered in the video be taught generally in automotive engineering courses in university?
Learn Engineering This video was very interesting. I am studying mechanical engineering in university and i am hoping to get into the automotive field. Thank You Learn Engineering for the depth explanation :)
Chechnyan Martyr I & Milk Video Milk Video Milk Video Milk Video Milk Video ass
Keith C hungry what?
This has actually answered so many of my questions. Though the statement that the clutch must be fully depressed before braking is misleading. The clutch must be fully depressed before the wheels stop moving, I think it's generally preferable to keep the clutch engaged until that point.
Great explanation 👍👍
> manual transmission
> step by step guide
Oh I get that, this is nice
> automatic transmission
> AND THEN YOU JUST PUT A PART HERE AND ITS SIMPLE AND HERES ANOTHER PART AND WHEN WHAM BAM THANK YOU MA'AM LOOK IT WORKS
Oh I'm lost now.
wiegje there's another video which fully explains about planetary gear automatic transmission. it's very complex tho. i still dont get it after watching second time. i guess im just not into cars
Look for kinematic guides and you'll get it ;)
The basic idea is that a planetary gear allows a reduction in speed. Many of the original automatics were 2-speed. The planetary allowed the inside to spin for first gear, then went to the one-to-one when the planetary locks in.
If you watch the video carefully, you can see how the central gear spins (and everything spins slowly around it) when the planetary is unlocked.
The other thing that isn't shown well is that the output shaft is locked to the outside of the planetary assembly.
Gud reddit meme arrows friend. Upvoted
Dr. Pavel I'm CIA nice trollbait. 11/10 would bait again
Driving Manual is very smooth too. Depends who's driving. The same for automatic.
I can drive my manual very smooth
the point is even if it toke you .25 of a second, you still lose power from the engine in Manual gear, while the automatic gear never lose power from engine.
💯
@@khaled00962 he said smooth not power
@@khaled00962 still you can just turn the engine high enough and then switch into the next gear very smooth so you won´t jerk at all (sry i speak german xD)
Before I see any mistake made in the video;first I appreciate his time and efforts made...
Well explained♥️
Dear patrons
Sorry, I couldn't publish your name/photo toward the end of this video. The climax scene of this video was filled with so much information that there was no space left to display your name. Sorry for that. I will show your name/photo from the next video onward. Thank you for your continued support.
Learn Engineering mate that's why we love manual that "variation of speeds" helps a lot in mountain road or in a drift course so in other words auto is good for inexperienced drivers to go from point a to b (sub humans) and manual is for much more experienced people (car guys/petroheads) who love the turns on a mountain or a racetrack 😉
Learn Engineering Please make a video regarding working of carburetor and fuel injection system .
Thank-you
Learn Engineering except drag racing where autos dominate
stevemic drag racing is only for cars corners are for drivers tho ;)
HH E I hope, you are taking about AMT. They are just computer controlled manual transmissions. They have all the drawbacks of the manual transmissions.
automatic? you mean lazy mode
More like easy mode:)
I see God
Didn’t expect to see you here. I agree. Automatic is for western spy’s and pussys
GREETINGS THE SHASHLIK KING
i dont read replies “I press da pedal and da ka goes VROOM! Pulling stick is too hard for me, me American, me vote Trump!”
I got the part about there being two transmission types - manual and automatic. What was the rest of the video about ?
Manual transmission has a noticeable engine braking. This way you brake with both the brakes and the engine at once. I think that as an important pro, it's not like you have to push the clutch pedal each time you brake. You can even reduce gear and stop in a shorter distance. I don't feel safe when braking with an automatic one.
Manual is very easy to understand, but the Automatic transmission I still don't have a damn clue wtf is happening in that.
RzVids true
RzVids lol true. it's fluid in motion. but it's complifuckincated
This is really me now.
Hats off to the engineers who designed it...
You guys have to learn the working principles of planetary gears. Basically a planetary gear have 4 components, the sun gear (in the middle of everything) the ring gear (surrounding the planet gears) the planet gears (small 3 gears) and the carrier (connecting the 3 planetary gears) they're always in mesh, and by stopping one or two of these gears you get gear reduction, in which the speed in the output is different than the speed in the input, so you can get underdrive (speed is slower in the output), direct drive (output speed equals input speed) and overdrive (output speed is faster than input speed) that way you also multiply torque to get the car moving, that's why it's a lot easier to start in 1st gear than in 2nd gear, because torque is twice as strong (depending on ever gearbox and the gear reduction for the 1st gear of "X" gearbox)
dude....who's the genius in making these transmissions...complicated af
engineers lol
Chill, all he said was that it was confusing and the people who made these transmissions are smart
Its not confusing now they have been awhile you ass hat. All he said was the people to originally come up with this are smart. Now stfu and get off your high horse.
Years and years of projecting the and re-projecting it, results in a more complex mechanism, if you're new to this engineering stuff I'm not surprised that you'll not understand it from the beginning.
Leafeon Aliens
It doesn’t matter how much videos I watch about transmission I still have no clue how automatic transmissions work like manuals are so simple compared to those things
I use clutch + break only when in 1st and 2nd gear. But even then when on snowy/icy roads always in gear.
3:26
"Never A Smooth expierence"
My father who is driving manual for 25 years:
Am i A joke to you?
he mean, when you need to shift your gear you have to push clutch pedal so at this moment engine not turning wheels.
Fucking moron. Everytime you press the clutch in you stop putting power to the wheels, they even showed this in a graph
@@AzzaYaDog i think artur is mentioning about how some new drivers may make the body of the car make a tugging feeling because they dont switch gears smoothly or dont rev match to make a smooth transition, where as experienced manual drivers make it seem like there is no tugging by doing rev matches and smooth clutch engagements, hes not talking bout power not going to wheels
@@AzzaYaDog are you stupid momentum is a thing
It is probably hard if you plan on parking up a upward road. Considering the car have to clutch up if you mess it up
i have an automatic suv, and a manual pickup truck, just watched the whole thing, i still dont know how either work 😂. nice vid though 🖒
Informative!
OMG!! This video was so easy to understand.......
Thanks Man you made my day,...
Actually you don’t have to engage the clutch in order to brake. It just makes the transition of shifting down smoother. The clutch only has to be engaged when you’re stopped
If you downshift you should double clutch or rev match to prevent wear on the transmission.
@@theedgarthefish4267 only when driving antique without syncro or racing. Definetly not needed on normal traffic
@@tomzu8848 You don't have to do it, bur rev matching when downshifting reduces strain and wear and tear on the clutch assembly and transmission. Downshifting without revmatching forces the transmission into a braking type action which is not what it was designed for
@@theedgarthefish4267 strain and wear without rev matching on normal driving is so minimal it doesn't eat transmissions lifespan lot. Unless it's some glassbox that has been poorly manufactored/designed.
@@tomzu8848 what you're saying is true....but personally, rev-matching is more fun, when done right 👌
You definitely don’t have to engage the clutch in order to break in a manual
I belive it refers to when you break to a critical low RPM or when you want to stop.
Cameron, let it slide.. video most probably made by a 'murican who never drove stick. You've seen the graph? What moron can't drive stick smooth as babyoil? Then I remember, manual transmission is the best anti theft system in the US
@@3goats1coat haha i mean you lose power when you change gears ether way . there is a reason why automatics shift faster and better. but manual is so much more enjoyable exactly that "loss in power" is so much fun when you press gass a bit then change gear and you feel car tug forward damn that is exiting.
@@luk4s56 well, you lose traction for less than a second and more than a ton of steel being in freeroll.. you get what I mean, there's literally no way for a passenger with closed eyes to feel when you shift (except if you want to).
Also, there's a reason why drift and rally both use manual. You're losing a lot of control over your car for that bit of comfort. Also safety, I'd say (considering tight overtakes).. the knockdown needs an eternity to activate, with manual you can be at 4k RPM with a howling turbo in a split second.
@@3goats1coat true i agree. its just that auto is more convenient. thats all there is but also i think its good that auto is popular. inexperienced drivers with manual are terifying to meet on a road
Cool, Manuel is super easy to understand. However even with my basic knowledge I know a bit was left out on the automatic transmission side. There are tons of variations too, there are for both, but especially automatic.
Really nice video
vote manual transmission
more controll and more safety
dafuq ? How the f is manual safer?
Ahh i wrote it just my opinion and a fact about my driving style,every person have opinion,did u have opinion too?lets share if u have. Auto and manual have many pros and cons
Sorry for my bad english
My opinion is auto,i mean you can just drive around chilling,dont need to shift gears
P.S my opinion
+TheRealMonster engine brake is stronger, you are less likely to mistakenly press the gas pedal when you are supposed and wanted to brake
Nice,but shifting transmision its more enjoyfull like a sportman :-D ,because we can set the speed and engine sound. No shifting like eat withouth drinking a water hehe
Why am i watching this? I dont have a car
Josh Groban Same
Josh Groban because you like to know how things works
I want to build my own car and be original
I know it is difficult for you, but wasn't there a reverse on a Learjet as well?!
Josh Groban fuck off
This is very much useful for me
@Lesics well, you don't have to engage the clutch to shift gears. You only need to know how to do it without using it
Real drivers use manual
Daniel Tavares Ancient mentallity. Only to pose with your technical knowledge. Thinking about the future is smarter, which implies no transmission at all. Go electric. :-)
Zzzzzzzzzzzzzzzzzzzz
Daniel Tavares I love the good stuff, manual isn't one of them.
But in a truly great electric, there will be a multi-speed transmission. ;)
Richard van Pukkem But that's no fun
I have experience of driving with both of them.
my advice: if you drive a lot in the city or somewhere that you have to change gear a lot, pick auto. otherwise manual is better from every aspect. if you become professional in driving you can even change manual without significant loose of converted power by controlling the clutch and fast gear changing.
Behrooz KHaleghi Rad i have tested both transmissions too. i prefer manual even in the cities. it provides good performance at low speed and more fuel efficient. it depends on the car too, but for me manual is better
I have them both with more than 10 years A/T experience, the automatic transmission (A/T) ones came from different generations, one has hill sensing and the other doesn't have one. I prefer automatic over manual transmission for highway and city commute because A/T is simpler to operate, I don't need to change gears, in a traffic stop just push the brake pedal, no need to change gears and my left hand is free to do other things, eating burger etc..lol. As of acceleration, for stop & go and highway driving, acceleration is almost instantaneously, the A/T will respond quickly adjusting its gear and pick up speed even if I push gas pedal at about 120-140 km/hour, leaving M/T car behind (You almost can't do this if you use M/T). The M/T is probably my preferred choice If my daily commute in a hilly area and need to overtake cars alot, M/T is more responsive than A/T.
I like manuals, myself. As far as city driving, it VASTLY depends on the weight of the clutch. ;)
Behrooz KHaleghi Rad
Ary Himawan lol leaving m/t behind? Try again
Is there a video for
CVT vs Dual clutch 😬
Thanks for the video, absolutely enjoyable but I didn't understand anything
i dont know why it so hard to me to understand !! but in other hand thanks for this video 🙂
Lulușa Armand but its so fast
i think if he show us the transmission slowly we will understanded 🙂
anos -v transmissions are very complicated, you can't get a complete grasp on them in an 8 minute video. in the tech school I went to in the navy, we learned several months worth of material on just transmissions in about a week and a half. of course due to costs and budgets, teaching us at the normal rate of a civilian school would cost to much and take too long. what I'm saying is that no matter how much they try to simplify transmissions, there is far too much to take in to grasp the complete concept of how these amazing mechanical wonders operate. and these aren't even complicated transmissions. the big ones that operate earth movers and semi tractor trucks are where it really blows your mind.
Christopher Williams ah thats why i dont get a shit what the video is trying to explain. i think im too dumb for engineering
Muhammad Shafiq no way dude, just about anyone can learn it. now practical and real world applications though, that's a whole other ball game.
try understanding how gearing on a bicycle works.. that would be very helpful.. if u get the concept how those gears on a mountain bike or racer works, then u can move on to cars
Anyone else understand the manual but not the automatic?
Same
Same and I can usually easily understand things
Me. Ever hear of Porsche's 1970s Sportomatic? Just a manual with auto-clutch. They've had tiptrontic..no full autos for them!
@Gabriel you're on drugs
after 3 years of mechanical engineering i think i finally got it
You list me at 4:40, I don't understand how the automatic clutch shifts the gears. If the light green is same object how does putting clutch on one side shifts gears. Also Aren't all the gears in place what actually changes?
Don't ever stop uploading videos.... Really appreciate the work you do..
6:40 NO! you don't need to press the clutch in order to brake!
brake not break. apart from that, i agree, press if braking in order to stop not to slow down. otherwise you loose inertial engine brake and you will end overheating the brakes. but on today cars, electronics are core part of car functions and instructors suggest to push the clutch in hard brakings to avoid the engine to shut off and consequently cut off electronics (like abs steering assist etc..) .
He didn't say you HAVE to press in the clutch in order to brake, it was more of a recommendation, I just think he worded it wrong, I think his point was you should press in your clutch so your engine doesn't suddenly feel the pressure of braking to a complete stop, you could just press in the clutch to separate your engine from the wheels, then brake.
I know! WTF kinda idiot made this crap!
"In manual transmission driving, BEFORE you press brake pedal, the clutch pedal must be pressed completely".
That is what is said.
There are people who do this and usually place the gear shift in neutral.
This is WRONG!
When braking, you can keep the car in top gear all the way to almost being stopped before you step on the clutch (before the engine stammers) OR downshift one, or more gears as you decelerate.
When you are at a complete stop then you can place the shifter in neutral and let out the clutch pedal (relax your leg)
The video describes driving a stick like an old woman.
Placing the gear shift to neutral before stop is normal.
This wasn't easy to understand, yet strangely I couldn't stop watching. 😂
Those who didn't understand and are mechanical engineers.... Please Go and study Gears in THEORY OF MACHINES ........ This explanation was awesome.🔥
Well explained video, except about braking in manual. You engage the clutch if you want to stop the car or need to shift down. If all you need is to slow down a bit, you release the gas, then brake.
Also, driving manual is never a smooth experience? Sure, not as smooth as just stepping on the gas and letting the car accelerate on its own, but a decent driver (or at least someone who's used to their car) should be able to shift up and down without a problem.
if you can't make a "smooth" gearchange on a manual. you need more practice..
and no.. you brake.. then press the clutch. so that you get engine braking..
and then you can downshift for more braking...
I think they mean "when coming to a stop, to prevent the engine from stalling".
Ya I thought this was unclear too but I think ultimately they mean what DumbDuck says. They could have expressed that concept better.
LiquidBlackWolf as a manual driver my self, you can't deny that when changing gears you often feel a very soft "bump" when compared to automatics. It's definitely less smooth, but to me that's the beauty of it
Great video 👏👏👏
I don’t understand anything but this is fascinating !