THIS IS BETTER THEN COLLAGE

Good visuals help. Also, university is not what it used to be. The internet gives far more information on demand with multiple sources. Most of the time this is for free. University just can't keep up with this.

Plus, these days a lot of unis just teach identity politics, not engineering.

I remember one of my professors telling me "The most important thing you must learn is to study by yourself ! " It was a good advise. Internet, being probably the greatest invention of the 20'th century, helps a lot in that regard.

I learned it when I was repairing my broken electric screw driver. University really isn't an efficient place for learning things.

Oh it's bad for the teeth though

Oh it's bad for the teeth though

tends to up the maintenance costs a bit

it is an impossible condition for gears to pass through gears without destruction, as shown in the video.

impossible conditions are a weak mindset, its only impossible when you stop trying.

It may have been Henry Ford. The model T has a planetary gear transmission

James watt invented it to get around the patent for using a crank shaft to turn reciprocating motion into rotational motion ;Watt patented it but it could be the invention of one of his employees en.m.wikipedia.org/wiki/Sun_and_planet_gear

I made inattentive driving much more popular, that’s for sure.

Clark Manor Deus 4L60

ahahahahahahaa

Clark Manor ..

I'm bowing down now!

May the sun gear shine your way , unkindled one.

Why did you waiting?

Venkatanaveen Kodamagundla. . .....

Thanks for the explain. Great ！

mee too

me 4

me 5

Ok

Me 6

You must be a disgrace to your parents

Yes. Toyota calls it the Power Split Device (PSD). Motor Generator 1 (MG1) is connected to the sun gear, MG2 is connected to the ring gear, which is in turn connected directly to the driving wheels, and the internal combustion engine (ICE) is connected to the planetary gear set carrier.

@@qwasrfg If I understood correctly, the ratio between the ICE and the wheels when MG1 is not turning, is comparable with a classic transmission's 5th gear... driving away from stationary happens on the power of MG2 and only at a certain speed the ICE is turned on and gradually takes over... MG1 regulates the ratio between turning speeds of ICE and wheels. Cool application, and seems to be rather reliable.

@@marcdecock7946 Yes. You have perfectly understood how the Toyota hybrid synergy drive system works. And, as you have explained, the way the ratio of the contribution of torque from the ICE to the wheels is regulated by MG1 is why Toyota calls it an eCVT (electric continuously variable transmission). Normally, the ICE kicks in around 60km/h, unless you press the accelerator pedal hard. If the ICE is running, any excess mechanical power is converted by MG1 to electrical energy and sent directly to MG2 to drive the wheels (in which case the system becomes a series-parallel hybrid) or sent to the battery to be stored for future use. If the wheels lack power, electrical energy from the battery is dumped into MG2 to help the ICE if the computer calculates that this is the most efficient way of using the available energy (petrol in tank and electricity stored in the battery). When you lift your foot off the accelerator pedal and/or press the brake, MG2 becomes a generator and charges the battery. If the battery is full and you are running downhill, there is a B (brake) mode you can use. In this mode, the electrical power from MG2 is sent directly to MG1. This causes MG1 to spin the ICE, the latter working as a compressor since no fuel is being injected in the cylinders. Thus you still have conventional engine braking but without wasting a single drop of fuel. Beautiful technology!

@@qwasrfg I agree, it's not that much additional hardware, and the result is worderful. Also recuperation of brake-energy... I did my thesis on CVT's with a V-belt, too much wear and tear . I understood Toyota is also looking to make a hybrid driveline with a double planetary gearset, even more fun, but they seem to have some difficulty to optimize it with electronics...

pay the man

because you are inspired?

You will. Google knows.

Do you have a bicycle with one of those hub gears like Sturmey Archer (in UK), Bendix (in USA) or Sachs (in Europe)? This is how it works. You don't have to be into engineering to ride a bicycle.

Here I have my infinite reduction machine :kzfaq.info/get/bejne/ebeSi5B40J28l5c.html

Same here

Nice

I know! I'm trying real hard to keep up too! Lol

Haha

@dex dipa hahahahahaha

. ....

Exactly the comment I was searching for LOL! On the spot!

RIP real BMW

I'm afraid the nightmare had become reality since the release of the new Clio... I mean 1 series

Here I have my infinite reduction machine :kzfaq.info/get/bejne/ebeSi5B40J28l5c.html

We had a 1series with rear wheel drive, now an X1 with front wheel drive... You would probably say the x stands for ex-bmw, but it's not so bad, especially with some snow on the road.

If you want, the ring gear can be it's own wide shaft.

@Mr Sunshines wow harsh reply. At the risk of sounding like a moron myself I have to take it. Can I have a Ring gear be the drive gear. For example it would have teeth on the outside as well as inside. The outside teeth are rolling down a rack gear like a wheel on a railroad track. I would make the planets stationary and the sungear is my output gear. I basicaly need an 8" diameter wheel that is rolling at 20mph or 840rpm to turn a shaft 3,000 rpm. I thought planetary gear set up would work well. Thoughts?

@Mr Sunshines u could just say refer to 41 seconds into the video when the animation is complete.. and also mention the power input turning the planet carrier turning the pinion gears which turn the ring gear? Instead of just calling someone a dumbass..

@Mr Sunshines lmfao you are a joke of man

@Mr Sunshines no counterarguments in any of his replies.. just the word "dumbass" Look everybody!! We found someone who thinks they're cool because they understand simple gears! Lmfao

Overdrive ratios also play an important role on increasing the speed, underdrive ratios can be important especially if you are climbing a hill.

But for flat roads it doesn't matter.

nothing. It is constantly meshed. Clutches and brakes can wear out though... alsong with hydraulics

@@LexusGX460-OFF-ROAD I have a 2022 Tahoe with 7000 miles on it and the transmission started making a noise. The service department said the planetary gears were damaged. What other part malfunctioning would have caused them to become damaged?

@Michelle Gibbs just trade the Chevy for a Toyota or Lexus... 😃

@@michellegibbs6907 lack of lubrication from insufficient oil pump pressure will cause the gears and/or the bearings inside the planet gears to overheat, burn out bushings, etc. or serious abuse can damage the planetary gears.

@@Isjix4410 thank you for that information. I want to make sure whatever caused the planetary gears to become damaged is fixed.

Me, too. This 'explanation' is totally impenetrable to me. In my experience, technical experts are quite unable to explain a concept like this to a non-scientist, non-mathematician, non-technical person. They just do not know where to start. I have just watched it again and it was even more confusing a second time. It reminds me of science at school.

🤣

@@orglancs maybe you just don't have the aptitude for science? Different people have different types of aptitude.

Sangramjit Chakravorty Thanks for your reply. yes, of course, and that is probably true. But I would certainly be able to understand how it works if I had one in my hand and could rotate the gears and work out how they fit together. But technical people definitely do not seem to be very good at explaining things to non-technical people. I have watched many explanatory videos on YT on scientific and mathematical topics and haven't found a single one that is simple and clear. They always move far too quickly an d assume you know all sorts of things that they take for granted, which you don't actually know. The worst are the mathematical videos. With a practical item like a gear, you can at least imagine its reality, but as for calculus or anything with equations in it, well .... I gave up long ago. I would just love to pin down a mathematician, face to face, and ask questions. Where does that new quantity come from. Where is that x squared from? It has just appeared out of the blue without explanation. Everything is so abstract. How does one know that the items in an equation refer to something real? Maybe be the mathematician has just made them up?

@@orglancs I feel exactly the same about all of these scientific topics. Technical people seem to live in their own world and are incapable of thinking like a non-expert. Sadly there are teachers like this as well, and they just skip over a lot of steps and expect you are able to follow... It's rather frustrating.

In the corner of your mind

I am surprised that he is still alive: he MUST be the guy who did all of the voice-overs in 1950's feel-good newsreels!

Dare not judge a helping hand.

The BMW 2 Series Active Tourer is a FWD....

Niklas Ohlsson active tourer is not true bmw

rcomascat Every Mini is a BMW. Every Mini is fwd.

@@rolyfisher9137 we had a 1 series RWD before, and an X1 FWD now... both 136 hP The 1 series was more fun... for us with good weather, for others with snow on the road... We also have a smart with RWD, but that has no comparison with the 1 series. It's more likely to flip over (than to give you more grip for the driving real wheels when accelerating).

😂😂😂

Pat-reon lol

Is it software? If yes which one?

John Leo RTFD: READ THE F***ING DESCRIPTION

so, you are dumb