Torque Converter Operation and Components - AUSV 2520
ฝัง
- เผยแพร่เมื่อ 6 มิ.ย. 2024
- See a demonstration of the basic components and operation of a torque converter
TIMELINE:
0:00 Introduction
1:16 Torque Converter Components
1:40 The converter pump (impeller)
2:30 The turbine (impeller)
3:50 Fluid coupling demonstration
5:55 670 rpm input, 408 rpm output
7:10 Heat generation inside a torque converter
7:55 Stall speed
11:07 Torque converter cooling and transmission bearing lubrication
11:40 Normal operating temperatures
14:57 The tow/haul modes and overheating prevention
18:57 Torque converter clutch function
20:53 Torque converter parts and functions
21.03 Transmission oil pump drive
22:30 Stator support shaft
23:40 Input shaft (Turbine shaft)
24:18 Converter pump
24:30 Turbine
25:05 Torque converter clutch and operation
26:00 Converter cover
31:17 Stator and Stator operation and torque multiplication
39:15 The four jobs of a torque converter
This video is intended for students in the online AUSV 2520 Automatic Transmissions class at Weber State University in Ogden, Utah. This class is normally taught face-to-face, but due to the COVID-19 Pandemic in 2020, I am attempting to offer the class material online. Suggested quiz questions are shown below the video timeline. You should have watched the following Planetary Gear Set video first • Planetary Gear Set Ope...
Questions for Teachers:
1. What is the function of the fluid coupling portion of a torque converter? (Why is it there?)
2. What torque converter part(s) is connected to the engine?
3. What torque converter part(s) is connected to the transmission input shaft?
4. Under what conditions are maximum heat generated inside a torque converter?
5. How is the fluid in the torque converter cooled?
6. Where does the cooled fluid go before returning to the transmission's oil pan?
7. What does stall speed mean?
8. Can stall speed be obtained while driving at freeway speeds?
9. What is the function of the Tow/Haul mode in relation to the torque converter?
10. What is the function of the torque converter clutch?
11. Is heat generated inside the torque converter when the torque converter clutch is applied?
12. How is the transmission oil pump driven?
13. What torque converter part(s) is connected to the stator shaft?
14. What is the function of the stator?
15. What are the four functions of a modern torque converter?
16. Tell me one thing you learned or found interesting in this assignment?
ABOUT US:
Weber State University (WSU) - Automotive Technology Department - Automatic Transmission Lab. A technical description and demonstration of the basic components and operation of a torque converter in an automatic transmission or transaxle. Components from the Allison 1000 Transmission were used in the majority of this video.
We teach current vehicle technologies to our automotive students at Weber State University and online. For more information visit: www.weber.edu/automotive
This video was created and edited by John D. Kelly at WSU. For a full biography, see www.weber.edu/automotive/J_Kel...
Visit my other youtube channel / vibratesoftware to see the amazing NVH app for vibration diagnosis!
DONATE TO OUR DEPARTMENT
Please consider a donation to the Department of Automotive Technology at Weber State University here: advancement.weber.edu/Automotive
It is so nice to see somebody that is passionate about what they do and willing to share that to benefit others.
I've been a truck mechanic for over thirty years working on manual transmissions, Automatic transmissions have always been somewhat of a mystery to me. This explanation has taken all the mystery away. I am amazed at the technology and engineering that goes into developing mechanical systems. Guess that's why it has always been so interesting to me. The "stator" reminds me of a turbocharger, it increases power (torque) with the byproduct of what is already there being used. Genius!!
Bob Krietz was best automotive tech instructor ever.
after 6 years it is still best explanation of stall speed..Thank you...
This guy is really good at explaining the complex to lay folks
Thanks for watching,
Wonderful description of torque converter operation. Thank you.
This is a great teacher. Very personable. Not like some robot machine just there killing time. It's like a friend teaching you.
Thank you very much!
i watched like 2 other videos with fancy CGI animations and stuff and all didn't make sense, I watched this video, I know everything I needed to know. Amazing teaching!
I wish all teachers were like this guy !
Thank you!
You are an excellent teacher
Beautiful explanations and practical tips for driving to avoid eccesive wear and abuse of the Trany. 5 Stars!
It shows his knowledge in how he can state so much in simple terms.
Great stuff.
In fact, I wonder why I am now coming across this youtube channel. Perhaps the youtube algorithm needs an update.
I also love the brilliant delivery by the teacher.
00.05....... why is the giant fan on the table? 00.07....remembering when I was a youngster looking thru an early GM hydramatic repair manual....2 fans facing each other the air from one causing the other to rotate. Complicated stuff in 1954. When you are 8 years old...
Thanks for the great videos you produce! And thanks, for the memories...
Thank you very much!
Informative, awesome and confident and literally takes you to the world of transmission.
Thank you,
Finally I Understand how Torque Converter works.
Appropriate it..
Well, thanx for the first six minutes. Don't have to work on these things, I don't do anywhere near that level of work on my cars, but I have seen torque converters, I've asked my mechanic about what goes on, I knew about fluid transfer since I was two, but no one (no video) had simply and at a decent speed disassembled, displayed, shown in context, and reassembled one for an intro tutorial like this one here. So in the first six minutes you did that and it tied all the other shit together. I may have known how the converters worked but I didn't KNOW how they worked. Good job.
Awesome class, this class is worth good money.
Amazing teacher!!
Great Demonstration.
Thank you!
Awesome teacher.
Thank you very much
Very good explanations!
thanks alot...WeberAuto is really helping me to go on with my studies as I am a Diesel Mechanic student,whereby the r no demonstration at my school....so ur videos very much important...thank u
Meshack Moholola Thank you!
He explains very clear. He also has a very strong back. The torque converter stuff are so heavy but he can lift them up, move them around by sitting on his chair.
High quality explanation thank you
Thank you!
Nice lesson, very useful .
+MrShimizoo Thank you!
Fantastic video!
His is a good instructor
Not sure who the lecture is but his explanation is excellent, being from the UK where manual transition has been the norm but automatics are now becoming more popular and I wanted to get a good understanding of them and this lecturer delivered it spades...great job sir.
Realy like your video, it adds a lot. understanding torque converter and lock-up mode. appreciate, thanks alot.
your a very smart guy , i did not no that a torque converter exchanged fluid with the transmission i thought it was seald , this explains why my transmission used so much fluid
Isn't it wonderful that this esoteric knowledge is available for everyone?
This is the promise of the internet.
Very good info ..tq
very clear easy understand on auto clutch
Thank you!
very good explanations. Good Job.
Thank you!
Great lecture! Very fine instructor!
Thank you!
excelent explanation, i understood everything perfectly
Excellent video thanks.
Great content 👍👍👍
THANK YOU SO MUCH FOR your sharing .Sir
GREAT Demo using fans !!! respect !!!
Thank you!
Awesome teacher
I am retired after 50 years auto mechanic, many schools with Ford, GM, Toyota, and John Deer. This is the best instructor ever.
Thank you very much
I'll second that.
very good instruction Thanks
Great job! Thank you for the videos!
Tnx proff for your help
Great video , thanks 🇺🇸
Very exact explanation - Thank You!
Love your videos there very informative
Thank You!
Thank you!
3 sections in a simple torque converter, impeller, turbine and stator. It is an involved lecture to explain it all.
Still amazes me someone had to think all this up design it and test it crazy
Thanks for watching
Thanks!
Thank you very much!
Absolutely brilliant teaching of a VERY difficult subject. Well done! I don’t know what they pay this gentleman, but he most certainly deserves a raise. I’ll bet you the students all love this guy.
Fantastic.
awesome!! thanks for the video
Thank you!
Thanks for sharing... Cheers.
This guy is good!
I am old school (i'm 82) and I started out with a 1947 chevy fleetline. I broke nearly every thing on it (I was 17) but I did all of my own repairs. It was a great experience. I learned it from my dad, and passed it along to my son. I never really had a conceptual picture of automatic transmissions and torque converters. Your course is fantastic. It makes me want to buy an old automatic transmission and tear it down and rebuild it! Thank you so much! PS, my dad had a 1948 dodge with fluid drive. I kind of understood that, and it was clearly your primitive baseline case.
Thank you
A truly inspirational well educated born instructor.
I had maybe 4, in 12 yrs of school and 4 yrs in university.
Thank you sir
That's the best understanding of what a torque converter does and how it works. Fantastic thanks
Wait your in a wheelchair! How inspiring. I quit transportation research because of my mobility problems at NHTSA. Maybe I can work with cars if you can. I just need a temporary wheel chair for a few months.
Thank you, best wishes!
We should all have teachers like him. Thank you professor
Thank you!
I’m impressed! I’m self taught on my 700r4/4l60, but a Hydraulics and electrical Engineer for 30+ years and have attended many training courses and this guy has a gift..
sweet thanks
Thank you!
I mechanic for 40 years. And u are the first instructor that has made this so clear. The bolts holding the ring gear to the tc was never mentioned in school.
Thanks for your feedback!
Torque converters with the stator in them was around in the early 1960's. British built BW-35 auto transmissions had them. Torque converters with clutches first appeared in some Euro cars in the 1970's. I have worked on these. Early German built cars from the 1960's with auto transmission had a 4 speed box, & this also had TWO internal pumps. The primary pump is engine driven, & the secondary pump is driven by the output shaft. With such transmissions, something very odd takes place. Once the car is travelling above a certain speed, usually around 30mph, the rear pump takes over all internal operations of the transmission, & the engine driven pump circulates the oil through the cooling system. Some British built cars with BW-35 trans of the air cooled type had two pumps, along with some BW transmissions found in some early Toyota Crown cars. A very interesting thing I would like to add is that some Mercedes-Benz cars built between 1959-1965 with manual transmission had an "automatic clutch". These cars had a clutch like a normal car with manual gearbox, but no clutch pedal!! These had a fluid coupling between engine & clutch. The clutch mechanism was operated by a vacuum solenoid with vacuum from the engine, operated by a switch in the gear shift system in the steering column. The release rate was controlled by a valve governed by a control box on the rear axle. The reason early auto transmissions had two pumps is to enable the car to be tow started if the battery was flat, or roll started if you were parked on a hill with your car pointing down hill. My car has two pumps in the transmission.
Excellent explanation. I wish more instructors were as good as this guy.
I love it. Teacher.
I've sat down for countless videos trying to understand torque converters and automatic transmissions to no avail. Two of your videos and im finally grasping it. Thank you for your patient explanations. Brilliant teacher.
Awesome! Thanks for watching
The whole thing seems easy now
You're a great teacher sir 👏👍🙏
One of the most complicated mechanics in the vehicle has been explained with so much ease in this video. Did not have any proper knowledge on Torque Converter or fuild coupling but now i know quite a bit of those things. Will watch the video few more times to understand the whole operation together.
Very xalant sir 👌🙏🇮🇳
A picture paints a thousand words. So nice to see you simplify it right at the start using two desk fans. I had a basic understanding before this video but now I know so much more. I have an overheat light on my Landcruiser auto transmission, now I fully understand why it is there on a 4x4. Top video for all young mechanics and all youtube guys.
Thanks....
Thank you!
Professor John is a fantastic teacher and his students are so fortunate he is at Weber.
I have tried to explain the TC operation to the average person and have had pretty good response in understanding... but this has to be the BEST way I have seen it explained in a way the average person can really understand the basics! 😎
Good JOB Prof. ☺️
Thank you very much
That question at 10.20. LOL. Designed to keep things cool? Should of thrown 'em out. It's designed to transfer power, not keep the torque converter cool. That's what the transmission oil cooler is for. I am NO mechanic and I know that much. Great videos BTW, I've learnt so much today. Thanks,
+Addaz669 Thank you!
+Addaz669 I disagree. these are students and are supposed to be learning. this is not a group of degree'd, licensed automotive engineers.
and yes, part of the function of the fluid is to cool transmission components, as well as lubrication and transfer of force.
if no one ever makes a mistake or has a miss understanding, then the class is too easy for the level that the students are at.
i lean toward the understanding that there is no such thing as a stupid question.
This type of tutorial is very important for students as understanding how systems work will give opportunities for future proper diagnostic faults. Is one thing to remove part and replace is other to diagnose and pinpoint fault. A good technicians is the one is good at both. Great tutorial.
Thanks for watching
very good instruction
Wow... I cannot thank you enough. As a student in a third world country without much access to the teaching aids you use in your lectures, you contribute immensely to our understanding. THANK YOU
+Victor Njonge Thank you for watching!
Its a miracle that any car can even roll down the road.
Thanks for watching
This video is so outrageously excellent at explaining what's going on...the clutch, the stator, the fluid coupling thing....the pump
I will have my boss (a programmer) finally understanding his car....
Because of you sir, there is hope in far corners......Lend not a microsecond to despair!
Thank you very much!
ive been a transmission mechanic for thirty years and this has been one of the best explainations of how torque converters work that I have seen. very well done
Thank you very much!
wonderful
For reference, vacuum cleaners use a multi-stator system to generate suction. Great video - great series. You're an amazing lecturer and you make me wish I were an automotive student.
Thank you!
Nice explanation, for a long time I never realized the clutch existed based on what I learned when I was younger, I’m not a mechanic so it wasn’t important to know, I only realized there was more to a converter than the pump and turbine after reading out trouble codes. Wish I would have had this resource years ago. Thanks.
Thank you!
I could watch this guy teach all day!!! Hope those kids understand how lucky they are!!
awesome
Thank you!
This guy is fantastic. He is a great teacher.
fishman1955 Thank you!
fishman1955 Indeed
Agreed
Makes me want to some day take a break from my career and go attend his classes!
This is absolutely the best video I’ve seen on torque converter operation… Bravo…. Extremely well done!
John - you're truly a classroom hero...perhaps an international treasure, too. Cheers to great instructors who are no BS. It's very hard to come by these kinds of pragmatic teachers.
Very good instructor. This is also the ideal duration for a lecture. Any longer and the information is less likely to be retained.
Thank you
your a very good teacher. im watching your video to try and understand why the torque converter on my jeep Cherokee sometimes stays locked when im decelerating, until I tap the breaks then it unlocks. very frustrating when im coasting after taking my foot off the gas and it bogs down. im going to remove my inspection plate and check the bolts for now
aJEEPforthebirds Hi, depending upon which transmission and model year you have, it could be normal or it could be fixed with a control module software update. Some vehicles come with "Grade Braking" where the converter clutch stays engaged while decelerating on purpose. It is typically enabled by a switch or button. Sometimes it is the "Tow/Haul" switch.
WeberAuto thank you for the speedy reply, I suspect that you may be right on the software update as I never visit the dealership.I try to perform any service I can handle myself, but updates I cannot. I have a 1996 4.0 i6, aw4 transmission, np231 t~case.I will keep you updated with my progress, and again thank you for the reply
THE best explanation of how a Torque Converter works I have ever seen.
I truly appreciate you and the videos you make. These videos not only help me but countless others to understand transmissions and related components. You're a very special person and I thank you for your time and knowledge. I wish I could have attended your classes. Hopefully you continue to educate your students and the world for years to come. Again, thank you.
Also, the things that you laugh at cracks me up. Bless you and your family John. :)
Thanks for the explanation on stall speed and using the analogy of passing another vehicle. Wish my instructor 30 years ago had used it. Stall speed after 40 years of working on cars just clicked at the moment you used that analogy-ThanksJJ
+john james Thanks, I am glad it was helpful!
Thank you.^-^
Thank you!
Good to watch after the previous lecture where the Allison got assembled there. By the time things got around to the stator it was getting super interesting. I had no idea how that torque multiplication effect worked. Cool stuff!