How Electric Power Steering Works

[@benjaminsmith4058]

Sheesh, everything from a full mechanical disassembly to a complete view of the underlying electronics. Thanks again for a great video!

[@speedkar99]

Thanks. Gotta understand the whole system to appreciate how it works

[@glasser2819]

with these EPS we've got an extra source of CAN Bus errors. The EPS module has a learned "centering function" to help the vehicle drive straight else car is unstable around neutral.

[@pieterbezuidenhout2741]

@@speedkar99 thanks for cutting it to pieces so l don't have to. I can see a lot of different uses for this setup other than steering a car that will come in very handy.

[@rocki_bb]

@@speedkar99 it's awesome to see I get my special tools from the same place you do!

[@MarcosguillermoMoschini]

My car gives code 71 01 engine angle sensor, sin/cos neutral point, could it be that the black 3-pin sensor is not working?

[@Builtit1]

I love this guy because he puts work into his explanations. Also his nonchalant jokes about his brothers hat or toothbrush. Very underrated

[@speedkar99]

Thanks, glad you appreciate my style

[@planje4740]

@@speedkar99 - sometimes use something from own women if you dare and not only from own brother

[@riccardoscavo8485]

@@planje4740 He did, few vids back it was her underwear I believe and drew so much British dry humour over it

[@thewayidoit8895]

277k subs speak for themselves

[@XMguy]

I got to get me one of those special bits too. ;)

[@amdstrollo3074]

"So I'm going to use my special security bit to take these off..." *Angle grinder fires up*

[@speedkar99]

Yep, that's my special bit!

[@amdstrollo3074]

@@speedkar99 I knew it was coming but I still laughed like a hyena anyways

[@keithcurtis6671]

Just wanted to drop a thank you. You give the absolute best expalination of how systems work, with a great addition of humor and quirkiness!

[@speedkar99]

Glad you appreciate my work. Why quirky though?

[@keithcurtis6671]

@@speedkar99 To me the quirky part is the twist you seem to always add referance to some relatives clothing item and also specilty tools = angle grinder. Very nice fun addition!

[@staterafukumoto]

thank you for creating educational content that’s very approachable and beginner-friendly, while also not feeling condescending. as a car enthusiast who is in no way a mechanic; i appreciate you.

[@Miata822]

Rapid fire details. I love it. Everything I ever learned about how things work has come from taking things apart. The best way to learn.

[@irvinslagter8298]

This explanation is really good, but think of how talented the people were that designed that steering and made it work flawlessly. Kudos to them and their ingenuity.

[@speedkar99]

Sure

[@joemikos900]

You are amongst the very best few automotive video producers on You Tube. My guess is you have an engineering background as well as being a mechanic. I am grateful for the time you put into these educational videos.

[@speedkar99]

Thanks. I do put alot of time in research, filming and editing. I am a mechanical engineer and wrenching is my hobby.

[@toyorobo]

This guy is amazing! Also, I've started using a toothbrush to point to everything while I teach. It's been very effective.

[@speedkar99]

Thanks. Sure it's a good habit

[@scdevon]

I feel like I've been to college on EPS in 10 minutes. Thanks!

[@ChiliStyles]

#3. Cut off wheel is such a wonderful tool.

[@mikechiodetti4482]

My 2020 RAV4 has this electric assist. I really like it! So smooth, center's real well, no pump, hoses, fluid and valves in the rack. Oh ya, no pump whine at full turn lock! Thank you for this video!

[@speedkar99]

It sure is mechanically simplier and more reliable. But it devoids it of steering feel

[@rocki_bb]

I'm kind of a tinkerer. There are multiple projects I've wanted to make that have been beyond my price range due to the cost of parts. Yesterday it occurred to me to see if I could use parts from junked cars. You helped me see it's totally possible. Thank you!

[@jamesking9334]

You are a very good teacher straight talking and no if and but could listen to you all day thanks

[@torizaemon]

I wish all tech. videos were as clear and fast and accurate as yours is. Well done.

[@speedkar99]

Thanks

[@MrWoody135]

And now I put it back together..........great video, great explanations.

[@fxworld7012]

You seriously deserve more subscribers, great job as always

[@TEKMOTION]

Bravo ! Very well done. I thought I had seen enough steering box's to last a life time. I was wrong.

[@bumpstart21]

Thanks for taking time to dissect the system for everyone. Looking at the substantial motor armature I see why this system tends to damp rack movement. Good for passenger cars and trucks.

[@barjan82]

I'm working in the automotive industry, especially in the EPS electronics R&D field. The way you opened the PCB at 9:25 simply brought tears to my eyes 😂😂😂😂😂

[@bhathiyawickramaarachchi1453]

hi.. pls help me.. my car has a electric power steering.. i start my car in a morning my steering wheel is very tight. in two or three minutes its going back to normal.. what is the reason..??

[@riteshdoshi4721]

Hello, can you tell me what would be ideal EPS gear for electric vehicle ? Is it ball screw or worm gear?

[@johnjamesmarsh]

Nice teardown of an electric steering rack. Thanks

[@jacktheripper1083]

that special security tool!!! Soooo SATISFYING!!!

[@speedkar99]

Gotta love my grinder

[@ljpr360]

Honda and Mazda do great Electric Power Steering, so much feedback for EPS.

[@speedkar99]

It has to do with their suspension and tire tuning

[@TwisteeTheDefiant1]

Yep own a first gen mazda 3 can't tell the difference between that and mechanical sometimes lol

[@kevinbarry71]

I just love your complete set of obscure removal tools; great video

[@speedkar99]

Love the grinder too

[@jorgon1]

WELL DONE SIR , YOU MADE IT EVEN A CHILD CAN UNDERSTAND... GOOD JOB ...

[@Dough296]

Thanks a lot for bringing that science to us ! Was wondering since a lot of time how the torque could be measured ^^

[@turbojoe2]

Dude, Love how you went into the electronics of it. Cheers.

[@doncarlson8391]

Great video explanation. Answers a lot of questions. The real trick is putting that thing back together. Thanks!

[@shyebutnot8637]

Thanks for this. Love videos like this and learning. Finally started investing a bunch of tools to start. Next goal is to invest in some space

[@brettb8884]

Great detailed description! This guy is really good!

[@speedkar99]

Thanks and glad you learned something new

[@Jorma17]

Superbly ordered and comprehensive

[@hotchinahk]

Another good video you show us how things work in our car, thank you.

[@speedkar99]

You are welcome

[@MoBangFoYoBucks]

😂😂😂 I love that power snap ring tool! Looking forward to every video that you put up my man!💯👍

[@brucewilliams6292]

That was a great explanation of the EPS system! Thanks. Unfortunately I just keep seeing one heck of a linear actuator. :)

[@speedkar99]

Thanks!

[@3brixx754]

great video buddy im getting a job because of your teaching realy apreciate the help

[@speedkar99]

Wow, what kind of job? Glad I could help

[@samaanam76]

You deserve more subscribers 👏

[@speedkar99]

Hopefully someday. Share with your network

[@operator8014]

Jeeze. You've got so many specialty tools.

[@ncbasspraise]

I love the toothbrush! 😂Excellent job!!! You are very smart AND a clear teacher!

[@ForidKhan123]

5:50 Even he’s just as amazed as we are 😲 Great video as always!

[@HypnoticSuggestion]

Just got my first vehicle with electric power steering and I like it so far. The steering feel is really good and so quiet.

[@brucekultgen132]

Thanks for your exalent video! Wish I had your video's 60 years ago? Keep it up!

[@roddydykes7053]

Definitely no electric steering racks 60 years ago! But yeah every aspiring mechanic should be able to see these videos

[@aggie7756]

Bravo! Excellent video! Now I understand why my new OEM steering rack & pinion was so expensive...😫

[@speedkar99]

Thanks! Yep they sure cost alot

[@dba6121]

I like your security bits.

[@speedkar99]

I couldn't get by with these security bits on a BMW engine I'm working on

[@rotaxtwin]

Very thorough job sir. You covered it all.

[@speedkar99]

Thanks

[@seshachary5580]

phenominal teaching. very grateful to you. regards.

[@peterbustin2683]

0:17 That socket, by the pinion looks like an emoji jumping around ! Brilliant video, easy to understand and to the point. Subbed and binge watching !

[@SVanHutten]

Great video. Full of info and concise. Loved the parts with the fancy special tools. Now waiting for the reassembling tutorial ;-)

[@speedkar99]

No thanks

[@pgbpro20]

Electromechanical genius! Loved the explanation of the torque sensing system.

[@eligaller9190]

This reminds me of citroen's hydraulic diravi steering. There was no physical linkage too, a kind of physical backup linkage would apply only in the case the hydraulic system would fail. It was very comfortable for the time it has been built but it was very soft and did give allmost no feedback from wheels to steering wheel.

[@speedkar99]

This still had the physical linkage....

[@bigpantsbobnuggets5051]

My BS degree EE didn't cover many of these issues. Many Thanks. Bob

[@speedkar99]

This isn't EE ...

[@MSaqib-bm6np]

I subscribed your channel when u hold the grinder. Absolutely technology is beautiful from inside

[@Area51ca]

Thank you very much, now I know how it works and how to dissemble it, could you please make another video on reassemble?

[@speedkar99]

🤣

[@kennedysingh3916]

Thank you, watching from Jamaica.

[@speedkar99]

Thanks from Canada

[@chrissimmons9969]

Seems like that Honda rack was pretty well built. You had to saw that sh!t apart.

[@speedkar99]

It sure was. In fact most of the racks I've taken apart we're pretty sealed up, see my previous videos.

[@zeez9053]

It’s such a shame destroying the latest technology comparatively.At least you documented it ! 🤘🇬🇧

[@speedkar99]

Destroying what would have been crushed as a scrap car?? I'm doing a favor here...

[@zeez9053]

speedkar99 what’s going on that ye car must be scrapped -crash damage ? The components are top quality- Seems recycling components isn’t a thing where you are

[@stanleytownsdin4717]

That was awesome, I love how you dismantled every part, great video! 👍

[@speedkar99]

Thanks

[@vVeazel]

Been subbed since the Toyota/Lexus programming videos. Thanks for the great content, always something new to learn. This looks like a well-made unit also.

[@speedkar99]

Thanks. I kinda drifted away from the how to videos as the how stuff works videos and mechanical reviews have caught on and become more interesting since there isn't too much like that out there.

[@jrpeet]

You did a great job explaining this. Thanks

[@2405jacko]

Great!! Now that I know how it works , I'm gonna be forced to explain it to someone, ah man... thanks a lot. Awesome video by the way!!!

[@speedkar99]

Teaching others helps you to remember yourself

[@2405jacko]

@@speedkar99 Very good answer, bro!!

[@realvanman1]

Pretty cool. The *stator* is the field frame, and in this case has permanent magnets. It is a six pole machine. The armature (where power conversion takes place) is the part that rotates, in this case.

[@Oddman1980]

I always enjoy the remarks about the wife's toothbrush or the brother's T-shirt, but I had a good laugh this time around about the security screw bit.

[@speedkar99]

Hey it's all using what I can!

[@MaverickSu-35]

Love that special security bit @ 5:45=))

[@many-points]

Great video! Always wondered how these worked.

[@SesjaZen]

Best video in this topic - THANKS!

[@speedkar99]

You are welcome

[@hereigoagain5050]

Great video. I wish we could apply your special security bit to auto execs who replaced hydraulic with electric.

[@speedkar99]

Why though? No more leaks

[@hereigoagain5050]

@@speedkar99 I find electric steering to be numb & prefer the feel of hydraulic. You are right, no leaks.

[@mckoylach1622]

Thanks for your elaborate of the EPS systems. I think my 2012 highlander has this system . I prefer the hydraulic ones.

[@huxxjn2559]

Keep up the good job mate! Your brother's clothes though 🤣 🤣 always cracking me up!

[@speedkar99]

Haha

[@WJCTechyman]

Your explanations are still pretty good and if you really wanted to, you could send the logic board for the steering controller to Big Clive but he may or may not want to reverse engineer it.

[@murraymadness4674]

great breakdown. those ball drive has me thinking would make great cnc drive.. can only get this info when someone does these breakdowns. thumbs up! and great little jokes.

[@legalcriminal5730]

Brilliant engineering

[@LogicStandsBeforeGod]

There is nothing on this Earth will last forever except your good deeds and no one will live on Earth forever, we all are travelers on Earth.

[@speedkar99]

Good

[@eugeneleroux1842]

Thank you for an informative and well presented run down.

[@speedkar99]

You are welcome

[@geepea101able]

He's got the same tools as I have in my tool box. Hammer and grinder!

[@speedkar99]

The best ever

[@EIRK2046Y]

Great explanation. Thank you mister !

[@speedkar99]

You are welcome

[@Neicoman]

Just found your channel. Informative and entertaining.

[@speedkar99]

Thanks for subscribing

[@g2skinny]

I like the special security bit

[@lukerediger8431]

so, in theory, you could manipulate the torque sensor readings to automate steering without input from the steering wheel. Hope the security on that module is tight...

[@electricwhirl5175]

That's how line keeping assist, automatic parking etc works :)

[@speedkar99]

Yes of course it's hackable

[@lukerediger8431]

@@speedkar99 so how likely is moisture or failing component to cause these things to make a sharp left turn when you're at highway speeds? can a human overpower this thing, or is it going to be in control if something goes wrong?

[@pizzablender]

@@lukerediger8431 Note the "fail safe relay" that can disconnect the motor if things go wrong. The ECU likely has two computers that run in lockstep, and if there is a failure it will disengage. And I suppose the two coils in the sensor, are checked against each other as well. I wonder how they would detect a stuck sensor - maybe that joest doesn't happen. Same with that mtor catching on something. I suppose that is the reason for the security screws: don't mess with it.

[@lukerediger8431]

@@pizzablender yeah.... this bothers the hell out of me, when simple electronics fail due to moisture, tin whiskers etc, they normally just fail to work, but every once in a while they turn up one function to 11... and the idea that my steering might just get snapped full right or left by something with mechanical advantage over me at some random point in the future... If the signal from the sensor shows an increasing voltage as the steering column increases torque, then it should fail safe in that the sensor will always read 0 torque meaning the motor will not be energized, but if moisture gets into the box in the cabin, all bets are off, the H bridge could lock on one way or the other, the collectors on transistors could short to a live wire, and if the ECU is talking to this thing and giving it trim adjustments, a short in the wiring harness could do the same thing. This is before tampering is considered. Auto manufactures are doing stupid shit like letting the Bluetooth module for the entertainment center talk to the ECU, and malicious hacking is increasing. A hydraulic system can't fail like that.

[@colchronic]

I love your specialized tools

[@Steve.191]

Good one kept me focused as usual.👍

[@speedkar99]

Thanks

[@michaelbontoft5026]

Very well done. Factual and concise

[@davidco5533]

Very educational, thank you.

[@speedkar99]

You welcome

[@DIYDaveOK]

Very cool explanation!

[@speedkar99]

Thanks

[@mohammadzaid9799]

I think the torque sensor's metal ring goes up and down relative to left-right motion of the steering wheel. In order to know the driver's input is left or right and EPS module turn the motor clockwise or anticlockwise.

[@spelunkerd]

Yes, and with two sensors, the computer can compare one to the other as a fail safe. Much like throttle control, two parallel inputs.

[@speedkar99]

Yes and there's two coils inside the Sensor oppositely wound

[@muskokamike127]

Just want to give props: straight, to the point, without any long winded diatribe on the history or power steering or how Yakumi Honda married his wife.......great job! (I hate guys that drone on and on about superfluous crap lol)

[@tyroniousyrownshoolacez2347]

I learn again! Great job as usual. Thanks for sharing. 👉👊

[@speedkar99]

Thanks I'm glad it was easy to understand

[@WonderBread918]

You sir just earned a new subscriber.

[@otrebronsenif8698]

very good explanation, mechanical and electronics side. very satisfied. keep up the good job.

[@tonyt1554]

Great explanations........Lets see you reassemble it 😉

[@honda116969]

God damn bro I think you're a little too smart! Impressive AF ❤️ video

[@speedkar99]

Glad you learned something

[@gglovato]

absolutely perfect, i've never seen one of these taken apart to such an extent before. ¿Why do you think they used spiral balls for the translation instead of a fixed bushing?, ¿is it to make the rack able to move the motor more easily in case of failure?, or to reduce friction?

[@speedkar99]

Prescise and reliable positioning. I've seen the Chevy Cruze rack ...it has a belt driven rack!

[@gglovato]

@@speedkar99 I'd love to see vw mk5 electric rack, as it seems it has a motor spinning all the time at certain rpm

[@boydguie8129]

Man your good at diececting.

[@speedkar99]

I've dissected whole cars...see the rest of my channel

[@Discoveringme123]

Wonderful thanks again!

[@speedkar99]

You are welcome

[@RaduB.]

Nice! It would be interesting to see one that has the motor mounted on the steering column too...

[@HighlordFrancis]

Look up from the driver footwell of a 2018+ model year Nissan Versa.

[@supperapper3292]

very clear view , thank you

[@speedkar99]

You are welcome

[@sajanaabeywardana9725]

Superb! We hope your future videos will be full of new technological things. Good luck!

[@motivaksyon1938]

So complete guy thank you

[@speedkar99]

You are welcome

[@KingKong-mp6gj]

EPS is modern wizardry.

[@speedkar99]

Sure is

[@paintballthieupwns]

Thumbs up for your special security bolt removal tool :) LOL

[@thillaiambalam5661]

Great work on explaining it to us. Keep up the great work 👍 👏

[@speedkar99]

Thanks

[@piconano]

Damn! Now I can't say I don't know how electric power steering works! Love your interrogation techniques. Just the right amount of savagery and brutality. 🤪