Yeah, same happen to me. I watch so many videos and none was detailed enough to really understand how everything works. Was only after I finish the animation that I trully understood. Is nice to see that i helped. Cheers.

agreed

Awesome!!! Learned sooo much about them... thanks buddy...

I don't understand how the sun gear turns faster on P2 for gear 6 than it does for gear 5. Are you sure you got this right? Or should the configuration for gears 5 and 6 be switched?

@@dowskivisionmagicaloracle8593 maybe cuz the torque converter is locked?

:) thanks

You're welcome

No thenkuy

+Soylant I am happy you find it helpful. I agree that there are many videos explaining how automatic transmission works, but they all skip the part on how all those gears actually create all those ratios (power-flow). I didn't go about the math of planetary gears because I didn't want to be too confusing, when already kinda is. Good luck

I'm glad it could be useful for you :)

Wow. Thanks.

I don't understand how the sun gear turns faster on P2 for gear 6 than it does for gear 5. Are you sure you got this right? Or should the configuration for gears 5 and 6 be switched?

I am glad i could help. Cheers

a computer with sensors

***** i read an article at HowStuffWorks. Yes, there are electrical sensors and it's common now. Before they exist, they have a mechanical air-pressure detecting system to detect if the engine works so hard, and detects which clutch gear is hold. If the certain pressure is reached, a valve opens automatically to pump air to make the clutch work, just like how you manually use brakes. Wow I learnt so much starting from this video!

+FrostMonolith internet is awesome :)

I'm glad I could help

I'm glad

I am glad it was useful.

+Knights Forge & Gold You're welcome

You're welcome. I am glad I could help.

I am so happy I could help. Thanks for your words.

@@interlinkknight ok I am doing a latex PDF calculating all the ratio ! I was assuming that sun Gear has a radius of r, planetary Gears have a radius of r/2, and of ce the ring Gear a radius of 2r, am I right ?

I don't understand the question

@@interlinkknight i am curious about the ratio of the various radius (Sun Gear, planetary Gear set, ring Gear) !in order to do the math ! PS if you are not aware, i will deducte from the ratio of the first Gear ! Thanks you again for your video

The gear ratios for my model are: 1st: 3.20 2nd: 1.86 3rd: 1.43 4th: 1 5th: 0.70 6th: 0.60 R: 4.41 There are websites that calculate ratios of gear sets. Just add the ratio of one set to the other, if you really want to do it. By the way, to calculate ratios we use teeth amount, not diameter or size.

+PlayF1 Net Thanks for your words. Is nice knowing my effort is useful for other people.

I'm glad I could help

You're welcome

I rebuilt my first, a Ford 3 speed, in high school. Believe it or not, even the new ones aren't that difficult to build. It's a matter of putting it all back together in the same order as it went in with all parts inspected and troublesome or worn ones replaced, and making sure your clearances are set correctly.Troubleshooting one is more difficult because it takes a greater understanding. This video was a random recommendation and I feel the author did a great job showing the Allison 1000. Take in mind, there are many, many different automatics out there with differing parts and methods.

There is already a great video explaining that. Link on the description.

Thanks

+salem ogla Not really. But would be cool. Maybe someday, but for now I don't have plans of making a torque converter video. Cheers.

+adrian ionut On the bottom of the transmission there are a set of valves and solenoids that are controlled by a computer that "decide" what gear to put base on the speed of the car, speed of the engine and position of the pedal.

InterlinkKnight Ohh, I thought it was mechanically automatic... I was like what's so special about planetary gears that does that? Now I know that it's just a computer.

I don't understand how the sun gear turns faster on P2 for gear 6 than it does for gear 5. Are you sure you got this right? Or should the configuration for gears 5 and 6 be switched?

​@@dowskivisionmagicaloracle8593 Let me try. In gear 5 and 6, the sun gears turn freely and the planetary gears drive the sun gear. For gear 5 and 6, the output to P3 is the sun gear, not the carrier, and that`s why things change a little. In both cases, the faster the sun gear turns, the faster the final output will be. Imagine that the planetary gears and ring gear are turning at the same speed (like a 4th gear). In this case, the sun gear will spin with the same velocity as the other 2 gears, right? Now imagine that the ring gear is a little bit slower than the planetary gears. In this case, the sun gear need to spin a little bit faster (in relation to the ring gear, since the planetary gears have the same velocity as before) and that`s what happens. Before, the planetary gears were not spinning, just turning. If the ring gets slower, but the planetary gears don`t, they have to start spinning. The bigger the difference in the speed between the ring gear and the planetary gears, the faster the planetary will spin and the faster the sun gear will rotate. In gear 5, since the P2 ring is also rotating in the same direction, the relative velocity between the ring and planetary gears is not that great. In gear 6, the ring is stationary, so the difference between the speeds are bigger...

I don't know where you can find drawings of the actual transmission. What I used for reference was a video by weberauto where they show all the parts and how they assemble together.

okay. Thanks for the response. :)

Thanks 🙂

Thanks for your kind words. I always follow whatever the owner's manual says, which in this case they always recommend putting the selector in "park" and apply the handbrake whenever you park your car. The parking pawl is made to be used and should last the life of the vehicle. Don't be afraid of wearing that.

This is old, but no it doesn't. I have thrown old Ford and GM transmissions into park while moving at speed, and could hear the pawl grinding itself down, and that still didn't do enough to destroy it when I opened it up to inspect. That is one part I have never had to replace on a rebuild and I haven't heard of anyone else having to either. My experience is primarily with rear wheel drive American brand transmissions though. Once it's engaged, it's engaged and not going anywhere.

There's websites that have calculators for planetary gear sets

Yeah, me to, i want to know...

@Mr Sunshines By that logic, this transmission would be called a gear. It isnt a gear. it's a system of gears working together, as is the hydraulic control - a system of valves working together. if you think it is simple, search up a "valve body".

@Mr. Sunshine whats is wrong with you

@Hay Day You are stupid as f**

Most difficult thing for me was wrapping my head around the valve body for the first time. : ) Everything else is gravy.

The gears are still going to move with the wheels, but they are still considered in neutral because the engine and the wheels are not connected

@@interlinkknight Do you mean there are somethings that intercept the power transmission from the P3 carrier to the output shaft during the neutral gear?

No, but the gears are free to move . A little of friction from the gears might be transmitted to the output but it's so little that it is not relevant

As far I know it would not damage the transmission. I've done it and my transmission is fine