Airbag
Section-S Lyrics

We have lyrics for 'Airbag' by these artists:

1997 OK Computer - Radiohead In the next world war In a jack knifed juggernaut I am…
Andy In the next world war, in a jackknifed juggernaut I am…
Artigeardit Nah, stadig med min' dag-etter' Siden start, brormand, siden…
Blackheart In The Next World War In A Jackknifed Juggernaut, I Am…
Brag I hold off on calling you non stop Give the impression…
Christopher O'Riley In The Next World War In A Jackknifed Juggernaut, I Am…
Doveman In the next world war Jackknifed juggernaut, I am born again…
Easy Star All-Stars In the next world war, in a jackknifed juggernaut I am…
KØKKEN - Radiohead In the next world war In a jack knifed juggernaut I am…

Lюk Мої моря Мої кити Бачила я Бачила ти…
Mother Falcon In the next world war In a jackknifed juggernaut I am born…
Radiohead In the next world war In a jack knifed juggernaut I am…
Radiohead(라디오헤드) In the next world war In a jack knifed juggernaut I am…
Radiohead/The Section In the next world war In a jack knifed juggernaut I am…
Radiohead᠀ In the next world war In a jack knifed juggernaut I am…
Radiohead In the next world war In a jack knifed juggernaut I am…
Richard Cheese In the next world war In a jackknifed juggernaut I am born…
Rockabye Baby! Little miss Mary Mack Had buttons all down her back…
Soge Culebra Yeah, yeah, yeah, uh Yeah, uh, uh Modelo francesa, party po…
SONOS ROAM - Radiohead In the next world war In a jack knifed juggernaut I am…
Tablo I need an airbag Daga oneun geodae han seulpeume, budi jhigi…
Tablo (Feat. Naul) I need an airbag 다가오는 거대한 슬픔에 부딪히기 전에 집에 가기 싫은…
Tablo (Feat. 나얼) I need an airbag. 다가오는 거대한 슬픔에 부딪히기 전에. 집에 가기 싫은…
Vitamin String Quartet In The Next World War In A Jackknifed Juggernaut, I Am…
타블로 I need an airbag 다가오는 거대한 슬픔에 부딪히기 전에 집에 가기 싫은…
타블로(Tablo) I need an airbag Daga oneun geodae han seulpeume, budi jhigi…

We have lyrics for these tracks by Section-S:

Climbing Up The Walls Well, I'm proud to be livin' in the USA, playin'…
Little by Little Dan dan to katamuiteku Kimochi wa mada koi no mae Mou iiyo…
Lucky モンローが好きなパパに連れられあの日初めて映画を見た時そうつぶらな瞳の中大きなスクリーン飛び込んで一目でハリウッ…
Paranoid Android Please could you stop the noise I'm trying to get…
Prison Sex It took so long to remember just what happened. I was…
Stellar Meet me in outer space We could spend the night Watch the…

Undertow Gone under two times. I've been struck dumb by a voice…

The lyrics are frequently found in the comments by searching or by filtering for lyric videos

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Most interesting comment from YouTube:

Sebastian Nielsen

2y↑2

About the second mechanism - its not added just for "testing", and its not added just because if the first mechanism with the ball fails. The second mechanism exist in case the first mechanism doesn't trigger. The first mechanism might fail to trigger (a so called false-negative) without the mechanism failing itself, for example, if the crash/accident come in a slight angle, causing the ball to not correctly catch the lever. In some cases, the centrifugal locking mechanism and the deceleration detection might even be the same mechanism. The ball mechanism is required because if the passenger is wearing loose/fluffy clothes (like a thick winter jacket), it might not accelerate the belt enough fast to trigger the centrifugal mechanism in time.

One very common accident that the ball mechanism may fail to detect, is the "left broken light accident during night", which is a common accident during nighttime. When a car's left light is broken (from the point of view of the driver of that car), the car might during the night look like a MC. A second car might then try to overtake (for example a MC on their side of road). This will cause a very specific front-to-front accident where the left corner of his car crashes with the left corner of second car (note: from the point of the view of the drivers in each car. His left, second car's left hits each other). This will cause a counterclockwise rotation (on those countries with right-hand traffic, in left hand traffic it will be a clockwise rotation when cars right hits the other car's right) of both cars.
This would of course cause the ball to fling in a about 45 degree angle from the lever due to the centrifugal force AND deceleration force combined, thus the lever will NOT trigger.

thats why BOTH the ball mechanism AND centrifugal mechanism is required.

In some cases, the ball mechanism may even have a electromagnet or solenoid, or a rod connected to the pre-tensioner, that positively triggers the mechanism upon a accident detection.
With "positive trigger", it means that the mechanism doesn't rely on weight, gravity or centrifugal force to trigger, but its simply a piece of material moved into the mechanism that will push the lever into the wheel, or a rod that moves into the central plate causing it to immidiately go out of position, so the mechanism can never false-negative during trigger (even if the mechanism can fail, for example broken solenoid, or the lever breaking off as shown in the video).

And also about the belt tensioner, in those cars that use the brake pedal to detect a oncoming accident, they use a electric pre-tensioner in addition to the pyrotechnic one. The pyrotechnic one only triggers during a positive accident, which means usually a collision sensor must be deformed, so the car can be 100% sure its a accident and not just a hard brake.

All comments from YouTube:

gaeb1811

4y↑1.4K

Crazy how much thought and engineering goes into aparently simple things

Johann Kühn

4y↑23

And then the people who explain it get the whole pretensioner thing wrong.

Beloved Truth

4y↑8

@Johann Kühn alright, now you explain it then..

Johann Kühn

4y↑81

@Beloved Truth The pretensioner doesn't fire when you slam on the brakes, it fires with together with the airbags if the SRS detects a major impact. Just think about it this way, it's a pyrotechnic charge that yanks the belt tight. That mechanism and charge are single use, so if it fires when you slam the brakes (ie. before impact) you'll have to replace it after every emergency brake.

In my experience the pretensioner is also not in the retractor, but part of the buckle on the side of the seat bottom. This also makes sense if you think about its purpose. The pretensioner is not there to take up slack at your shoulder, it's primarily there to take up slack from the lap section of the belt, so you don't slide under the seatbelt (known as submarining, and it causes MASSIVE internal injuries). If it yanks at the top, the friction at the buckle will interfere and it won't be nearly as effective. For this reason it yanks the buckle down.

In a modern car, the inertia-based lock also operates in all directions, and it's farily sensitive. If the car experiences fast acceleration in any direction (so hard accelerating/braking, hard turning/swerving, rolling, etc) then the belt retractor locks, and will only unlock when you introduce slack by pushing yourself into the backrest. This serves two purposes. First it keeps you planted in your seat during aggressive maneuvers, and second it serves to "prime" the seatbelt in case the pretensioner needs to fire. If it only worked with the force of an accident, there would be a delay during which the belt freely unwinds before the mechanism can lock (keeping in mind how quickly an accident happens). Because of that the pretensioner would pull the belt out a bit further before the inertia lock has time to engage, which would drastically reduce its usefulness. But with the belt already locked the pretensioner will simply take up the slack.

Beloved Truth

4y↑13

@Johann Kühn Wow, that's a good read. Thanks. They should've done more research i guess!

Johann Kühn

4y↑11

@Beloved Truth Yep, I was quite surprised that they got it that wrong. I suppose it can happen, but then they should take steps to correct the mistake.

14 More Replies...

Magicdolphin30

1y↑136

Hats off to this girl, she risked her life multiple times just to show us how seatbelts work.

Daniel Fratamico

47w

She is Catwoman, she has 9 lives.

JustusLM

3y↑200

There is a small mistake in this video: The seat belt pretensioner usually doesn't react to brake pedal movement, but rather to the airbag sensors. This means it only triggers when the g-sensors in the front of the car detect a collision, not before that.
The advantage of this is that it doesn't go off in a situation where you brake strongly but don't have an accident, for example when you manage to prevent an accident. Since the pretensioner is a single-use device, such a maneuver (even in a voluntary driving safety training, rather than an actually dangerous situation) would make it impossible to use the pretensioner in an actual accident.

cat -.-

2y↑12

I was thinking about this, thanks for the explanation.
I have floored the brakes several times by now and I thought maybe my pretensioner has fired!

Matthew Feros

2y↑5

My VW and my parents merc both pretention even without airbags going off and have done so multiple times, so they can’t be charge based systems there.

david carter

2y↑2

All true,but my 1999 is not connected to any electrical,works from ball action only

saad multani

I was thinking about this.... thanks for clearing my doubt.

wobblestone

why do people not make the pretensioner multi usable?

2 More Replies...

Giovega21

4y↑163

Hey man, 7 years ago I was really wondering how this works. I couldn’t find anything on the internet that was accessible to me and even my physics teacher didn’t know.
But I’m very proud to say that my 14 year old self figured out the part with the steel ball.
Thank you for your animation, this was really interesting!!!

Chris

7 Years ago was 2015, there HowStuffWorks explains it all in an article on their site form 2002

nobody

@Chris 7 years ago from the time he had posted this comment was probably 2013 or 2014, not 2015.

Chris

@nobody Thats still past 2002

nobody

@Chris Correct, but I was just saying.

Girish H

4y↑5.1K

The three point seatbelt was invented or designed by volvo and they left it patent free so that every vehicle manufacturers can use it

traeng

4y↑81

@tbird81 Nah I think this was the case.

Vulcain 1911

4y↑217

& Then came the american capitalists

Avinash Raj

4y↑26

That is interesting

Xanthuum Nihyr

4y↑30

Yeah that's so kind of them ...

Genrey Gonzales

4y↑75

Another fun fact. Volvo is actually owned by china now

71 More Replies...

kkoz

3y↑223

Lost my father to him not wearing his seatbelt, my life would have been much different if he would still be here. I don't know why anyone wouldn't wear a seatbelt your chances of surviving are so much greater.

Humble Kid

3y↑12

sorry to hear that. please make sure you pass this message inperson as well

Ionor Rea's Spam Generator

There are instances where not wearing a seatbelt saved lives, but sure, on average you are much better off using them...

H Z

3y↑41

@Ionor Rea's Spam Generator
Yes, there are also instances where flying out of a moving train has saved someone’s life, but generally it’s not a good idea. Same with just about every safety measure

tomelifeisjustonebig

2y↑4

But he had his freedumb.

kkoz

2y↑10

@Ionor Rea's Spam Generator good thing people can pick what kind of accident they want

1 More Replies...

Kogure

4y↑1K

Don't you hate it when there's a massive boulder in the middle of the road

Shahriar Hussain

4y↑7

when you missunderstand field with road😹

Preston Deters

4y↑24

It sometimes happens when you live in the Rocky Mountains.

Patrick Day

4y↑16

@Preston Deters also happens when while e coyote drops a rock on the road

Beloved Truth

4y↑3

@Patrick Day Stop picking on Brave Wilderness!

Bakoty

4y↑2

5 More Replies...

Arvin Ash

4y↑978

Very well explained. Nice job!

SPARSH SINGH

4y↑2

Rajesh Koothrapilli

4y↑2

Hi Arvin Ash

Nagaraju Ab

4y↑1

CrewRanger Gaming

4y↑1

Hey, when are you going to tell why Speed of Light is what it is??

SPARSH SINGH

@CrewRanger Gaming i dont think thay they would see this message of yours. Try asking in another video?

9 More Replies...

Kevin Patel

4y↑3

Hey, thanks for your informative illustration on a seat belt working. This uses the fundamental design of mechanical engineering. I studied gear and belt movements but your video shows its real-life application. Once again thanks for sharing knowledge in an animated way.

Jinyoung Kim

4y↑13

This is amazing. I was surprised that a lot of mechanisms (more than I thought) are used in seat belt. Thank you a lot!!!

suavesoft

3y↑21

The ball bearing is absolutely ingenious! Simplicity at its finest.

Sunny

3y↑1

Never thought that, so much engineering is behind the car seat belts. Thank you for the detailed video.

Great Horton

4y↑4

Incredible engineering design, the developer were appreciated.

Pablo Ramirez

Very interesting and well explained! Good job!. Now I'd love to know which cars and models have which type of seatbelts, so I can be sure they are indeed as safe as the latest shown.

Nathan

3y↑3

Simple yet intelligently put together for anyone to understand with amazingly simple visuals so we can follow along. Bravo

Mike H

2y↑1

Thanks for a great explanation! The multi point seat belts as used by jet pilots would be a big life saver if it would be accepted.

Lüvv Sürya

4y↑1

Thank yon for sharing that information. I guess, every automotive enthusiast should know about the functioning of such critical components in an automobile.

Forrest Berg

4y↑1

Great explanation! Such an interesting combination of mechanisms. Thanks!

Infant Nelson

4y↑14

Really loved that illustration. Thanks to make easy understanding, how seatbelt is most important.

Saksham Bansal

4y↑1

There is also something known as seat belt retraction after the seat belt locks , according to my car manual it works only once in case the airbag is deployed and has to be replaced

Stone Wei

4y↑1

A huge thank you to the video content creators, very well explained.

Michał Madejski

This is also another type of seatbelt system. Connected with distance sensor. Reusable tighting mechanism. I'm not expert in this area but I experienced how it works in Lexus car. It works not always when hard breaking but necessarily when braking and dangerously approaching the obstacle.
I'm curious how those works.

Ivan Ionchev

4y↑6

Very good explanation, thank you! Only thing I disagree is the pre-tentioners don't explode when braking hard but only when they detect actual crash. If it wasn't like that they would be activated all the time by car journalists testing the brakes :)

Xanthopteryx

3y↑7

Fun fact:
Volvo have electric pretensioners on newer cars. So the car can actually pretension the belt BEFORE an accident has happened. They also have, since long back, TWO explosive devices - one at the top mount (as shown here in the video, where the roll is) and one at the bottom mount (where it is fastened between the door and the seat). This is because this saves lives since it tension the belt in a better way.

Adam Boros

Produced by Autoliv :)

ashish kumar

i really confused with the combined effect of pretensioner and torsion bar, as torsion bar is provided to absorb rigidness from innitial impact to standstill of vehicle, so that passengers wont get much hard force. and allow them to fall forward to a rate that air bags will fully deploy. but using the pretensioner at the time of innitial impact is like countering the effect of torsion bar, one place enggineers are allowing seat belt to fall forward slightly, another case they are tightening it. please someone explain where i m wrong in my understanding of torsional bar n pretensioner

Xanthopteryx

@ashish kumar First, you want to hug hug the person, as much as you can. As tight as possible. First you have to overcome the fact that people just do not put the belt on properly, so it is not tighten to your hip and body, then you must overcome clothes that also have an impact of the tightness of the belt. Then you have to overcome people leaning out from the chair.
So, pretension system and explosive devices try to fix all this (but YOU still should unzip thick coat(jacket and then buckle up and then tighten the belt so it is firmly in place).
Then you crash and everything pull you into the seat as much as possible, because you should move as little as possible to start with. Then you have the flexing of the entire system to help you slow down in a controlled manner (if you have slack of the belt you will first just fly uncontrollably forward until the belt catches you and that is BAD) together with the deformation zones and then finishing with the airbag.

To see what happens when the seat belt does not proved the correct holding force on you, look at crash tests of Tesla Model S. They failed twice(!) because of bad seatbelts. They redesigned the system between crash test 1 and 2. After crash test 2 Elon said that the test was faulty...........

NeXuS

4y↑5

I love these kind of videos, they are interesting, visual and keep up your attention. This is how teaching should be in schools instead of just reading and memorizing and just copy paste it onto a test paper from memory, then forget about it as soon as you passed your test.

AJAY VISHNU

Amazing video!! Very informative. Do more videos on the vehicle safety system both active and passive. Keep going 👍❤☺

Duniya

4y↑1

A complete video with relevant examples. Enjoyed a lot 5x5 stars 🥰🥰

Oliver Mateo

Figured in an accident last week. Bumper ripped, hood popped, windshield shattered and air bags blown. And yup the seat belt worked well with pre tensioner. Really saved our lives.

Alex Lăzărescu

4y↑1

I cant believe this channel is accessible for free. Great work!

Jack Zhao

3y↑1

Take a minute to appreciate the engineers, it takes a good amount of thinking for me to look at them and understand it but they came up with these out of nowhere

David Steinwachs

4y↑8

so much thought into something as "simple" as a seat belt...awesome vid

the sirker

Its awesome to see that a machine can prepare you for a crash so you have the most chance of having as litttle as injuries as possible

The Himalayan Diary

Hats off to the science and engineering ..who developed such a piece of engineering who saves life, besides providing comfortable ride also.....

arif

Hats of and salute to the engineers 👍🏻

Bro Gamer

your channel always show great quality and informative content. thank u for everything u are doing.

Oek Foh

4y↑21

Never in my lifetime would I figure out how to design something as simple as this

LD80061

I'm with you on that one!

Daniel Santos

4y↑33

Very interesting, hope to see more of this type of videos.

Sangeeth S

4y↑1

I've learned a lot from your channel. Keep up the good work.😍👌

Karan Josan

Well explained and fully described new and old designs thanks for great information 👍👍

Ameen bashar Bashar

This is actually cool because I always thought that seat belts tighten people up when they break so I always thought that right as someone pushes the break button it lets the seat belt know that it’s getting into a really strong hold

ajay raut

So much engineering behind seat belt .. thanks for this great video!!

Michael D.

4y↑5

My dad always told me that our 2008 Laguna III have an emergency pistons in the seatbelt. Now I just seen how it works. So smart mechanism!

swaygfx

4y↑4.2K

she really didn't see that boulder in the road tho?

SackbotNinja03

4y↑343

She didn't have a door either

II

4y↑313

She's a woman, what do you expect?

Matthias Geist

4y↑58

@SackbotNinja03 ahhh I didn't notice the missing door

Matthias Geist

4y↑66

@II bruh noooo, don't be sexist!!! for real

Vikki

4y↑43

@II this seems logical bruh

85 More Replies...

Luca Masters

The per-tensioner as described sounds like a one-time use thing, but seems like people slam on their breaks more often than they get their seat belt mechanism inspected and repaired. Is there more to the trigger to avoid false-positives? Or is it able to automatically reset to re-trigger next time?

Atherva Gajinkar

very informative .Thank You. Plz make a video explaining difference between 4WD and AWD and various differential selecting options in 4WD

manisah

Rack and pinion mechanism saves lot of human life. A big salute to the inventors. Thanks.

Lesmes Boyenger

Kudos to the Engineers and Designers !!!

jaideep parmar

I am very proud of all those scientists, engineers who invent this kind of technologies for us👷‍♂️

kaRu

4y↑3

One thing I learned from this video is you have to maintain your vehicle even if your car looks fine after the accident.

Eric M

very clear explanation. I was not aware of all these levels of safety

Sundhu Kumar

kudos to this team.......that was an awesome explanation with nice CG,showing all version of seat belt mechanism...

Mehdi Chafi

Behind each simple mechanism a genius ideas of engineering ✌🏼

Gaddam Kartheek

Wonderful explanation. You did a great work behind this video. Thank you so much for excellent and very important information....

Ezequiel Ferrante

4y↑1

Incredible how complex may be an apparently simple device

Brad Noyes

4y↑741

I see forms of this question coming out multiple times in the comments: "Will the seat belt pretensioners fire in a sudden braking event?" Short Answer: No. Long answer: The video is mistaken, the pretensioners do not fire before an impact, the airbags and pretensioners fire when (depending on the system) the vehicle's impact sensors are triggered and/or an accelerometer in the SRS module detects an impact. When the vehicle hits something, there is time between the initial impact and the vehicle coming to a complete stop. This time is the time in which the occupants of the vehicle must be safely decelerated from the vehicle's pre-collision speed to a stop. The most serious accident is when a vehicle hits a stationary 'non deformable' object (such as the rock in the video). If the vehicle had a 'rigid body' chassis (term used in theoretical physics to mean undeformable) then the vehicle and occupants would have to decelerate to zero instantaneously, resulting in massive injury or death to the occupants. Obviously this is theoretical, and the chassis of the vehicle bends and deforms, all the while decelerating the passenger compartment and therefore the occupants (this is the reason for crumple zones, they are sacrificial components of the vehicle intended to absorb the energy of the vehicle and decelerate it at a rate that is more safe for the occupants. This increases the time from which the initial impact occurs to when the vehicle & occupants come to a stop. During this time after the initial impact, the SRS (Airbag) module uses accelerometers, in many cases additional 'impact ' sensors, and occupant weight sensors (specific layouts vary from manufacturer to manufacturer and model to model) to compute the severity of the accident, determine which aribags/pretensioners to deploy and in some cases how quickly to deploy them (some aribags have multiple stage deployments) , all in fractions of a second (down to as little as 10ms in some cases) and before the force of the impact reaches the passenger compartment.
Edit: Note some vehicles do not use 'pyrotechnic' pretensioners (pretensioners that use an explosive charge like the pretensioners described in this video). These Vehicles have different controls, and I am not familiar with these systems.

Dash cam Serbia

4y↑12

Yeah, I wrote a comment on that too.

I love Hühnchen

4y↑29

I think 80% won’t read this

Gilbert HARERIMANA

4y↑2

@I love Hühnchen too much to read

J C

4y↑36

@Mohan Krishna Your loss

34 More Replies...

Jymbyrly Yarmulkeshekelberg

This was so clear and detailed, thank you

Yonatan Shenhav

4y↑2

The best design video i have ever seen, and i have watched many of them. truely a great video - pace of speach, content and visualization

Eric Basilio

it is hands down the best channel on YouTube! Every video I watch makes me feel 10 times smarter

Indranil Majumder

2y↑1

How do they come up with such mechanisms? Genius!! Great video btw!!

ƊƎÅƊĻȮƆǨƧ

3y↑330

Is no one gonna talk about how much accidents she went in for us

Osama Ghaleb

3y↑11

Yeah, new workers usually struggle more

rising redstone

3y↑19

We'll remember her sacrifice.

Andrew Tran

3y↑10

@rising redstone we should start a religion in her name.

rising redstone

3y↑11

@Andrew Tran Safetyeism

Adnan Khan

3y↑4

@Andrew Tran why you invent religion everyday

5 More Replies...

Pronojit Dutta

4y↑1

Wonderful explanation!! Your videos are amazing!

Sebastian Nielsen

2y↑2

Victor's Vids

Mr seatbelt expert here 🙄☝️

Earnest On The Beat

Who would have thought a simple seatbelt was this complex?

Code Elobrated

4y↑1

You are a living legend ❤️

Jeroen de Sterke

4y↑2

The locking mechanism was designed by British designers, Ken and Lew Norris in Burgess Hill, Sussex, England. They gave the design to a leading seatbelt manufacturer as some sort of favour if I recall, who promptly patented it and made millions.
Ken used to say that every time he got in his car and belted up:, "Mmmm, we should have kept that one"

Der Wolf

4y↑13

6:25 Looking at the massive wobble movement of the front wheel, I am sure even if she didn't crash into the boulder, this imbalance means that her lug nuts are so loose that the front wheel will fall off in less than a mile of normal driving anyways. ^^

No just a joke, love your great animations and couldn't do it better, thats just one thing that fell into my eyesight.

Ennovative

I used to believe that engineering was pretty easy and I would be a world-class engineer if I decided to take up that career. I found out that just about everyone feels that way about things that they think they know a lot about. After learning more about engineering, I realized that there is SO MUCH I do not know, and I actually respect design a lot more.

I think this comes from spotting mistakes engineers make, but not acknowledging the genius behind the entire product. Even what we think are design flaws, there is probably a good reason for the "flaw" and was designed that way intentionally.

Aalia Aslam

what you're talking about in the first para actually has a name! it's called the Dunning-Kruger effect.

wobblestone

@Aalia Aslam yes smart alec

Ashraful Haque

Very nicely explained. Thanks!

TheEmeraldSword

3y↑1

I remember testing the tightening in my dads Kia Soul all the time by yanking it but not too hard to check if the actual locking was fine.

Yu Sun

Such an engaging way to explain the technology. Thanks.

Jacob Arakkal

Thank you very much for all your kind information, beautiful explanation 👍

Knetknecht 2

4y↑81

This high quality video is the kind of content, which is needed on YouTube. Not those reaction vids, let's plays or beauty blogs.

Good job!

gaeb1811

4y↑2

Damn right

Dimaz

4y↑15

well, different videos cater to different audiences, and people have preferences and need entertainment

Red Bean

4y↑9

no one is forcing you to watch those reaction vids.

Home Of Stones

Eric Mirettouche

L4byrint

@Home Of Stones lllllmlllllllmlllmllmommlllmlmlmllllmmm

Dhaval Bendale

4y↑1

Wow, something which we never felt of searching for.....nicely made video

Flxppy

3y↑2

as someone caught in a barrel roll at 50 mph i can say they do indeed work !

Brian Dowhan

What replenishes the explosive material on the pretensioner design? Curious to know and expand a bit more on this!

Jackson Jude

3y↑7

Just few months before survived an deadly accident...all thanks to seat belt and airbag

Kol62

4y↑440

Anyone else’s seatbelt lock up sometimes when your not doing anything

Proto Man

4y↑70

Like breaking at a T crossing and leaning forward to see crossing traffic? Yes.

Aryaman Mehra

4y↑1

Proto Man 😂

Handsome Muggle

4y↑10

Or a middle seat seat belt jammed because your station wagon rear seats fold down, shortening the length furthur while it down, so getting the seat back up leaves it permanantly jammed. This is for those middle seats with seat belt fitted into top of folding seat. Other ways it jams, is when you are at a intersection with a camber or slope sideways meaning seatbelt inadvertantly does it job, so you cannet lean forward for better view around parked cars. But I trust the seatbelt with my life, because it original design was simple, and if simple works, then it smart. Thank you Volvo for not patenting (or trademarking ?) the 3 point safety belt, but instead allowing other car manufactuers to use their design for all our safety.

Kashif Nawaz

Yep my 2016 Sonata.

Imthiyaz Ahamed

4y↑16

When we haven't buckled the Seat Belt and see Police standing in front and when we try to suddenly pull the seat belt, it will lock. We end up paying Fine

11 More Replies...

floorpizza

4y↑1

Good video, but it's a bit disingenuous when it comes to the pre-tensioner system; they don't fire based on brake input. Most (if not all) pre-tensioner systems are connected to the airbag deployment system. If an airbag deploys, and the system senses that a seat belt is in use, it will fire the pre-tensioner in any in-use seat belts at the same time. Yes, this is done by crossing a deceleration threshold, but it is in NO WAY associated with the brake pedal.

Zack

3y↑1

mind blowing how a little free to move ball save you from a deadly accident

augenbutter

Great video explanation. I only can add that, 15 sec. before impact, try to use the steering feature that modern automobiles have build in.

CADable

4y↑2

Your animations are fantastic 🥰

Pranesh

Wow...this was very much informative and was beautiful explained. 👍👍

Saquan Jack

4y↑13

Who tf invented that orange mechanism! That some genius right there I always wanted to know how that works

Uldis Barbans

Weird that it needs such a oddly shaped plate. I thought it was going to be a simple ratchet that swings outwards due to centrifugal forces. Governors (devices for steam engine speed control, exploiting centrifugal force) predate cars.

Adderly Ventura

4y↑1

las mejores explicaciones estan aqui, gracias, buen trabajo!

Loveisanopendoor

4y↑1

dam thats pretty cool how much engineering goes into it

DeeP

4y↑1

Never thought seat belt could be that interesting 👍

Ravi Thakoer

37w

At 0:48 the shaft is rotating in the wrong direction to tension the spiral.
Nevertheless this video explains the operation very well.
Thanks for your effort!

Saad Hanif

4y↑2

It was interesting to know how seat belt saved me 10 days ago in intense collision.

Steve Masaki

4y↑6

Who are these two that disliked this video? they probably have one of their loved one who did not use it? I dont understand how anyone would dislike this video! damn!

Tom Conces

Seat belt webbing is also designed to stretch when it receives designed load. After an accident where no airbag was deployed but the seat belt used, it is necessary to examine the belt for areas that are no longer flat. When not flat, replacement is required. Sort of like a rubber band aiding deceleration. Cheers

Sebastian Nielsen

2y↑2

No, not really. The seatbelt actually as a load release, which is a S formation sewed with threads. If you look at the side of this (its a thicker portion of the belt, usuallt located at the third bottom, fixed mounting point). If you look at this position from the side, it will look like the belt has been folded once and then sewed shut. This portion, will during high stress, fail (threads break off), causing this S portion to extend to a flat portion, releasing the belt a few centimeters.

This is called "energy management loop" in "seat belt manufacturer language" and it exist a few different designs, some are just folded once, some are twice, and some are a little loop sewed together. If the load release have snapped or if the load release looks to have received a high strain, replace the belt. If the load release is fine, the belt is fine too, but still inspect it for any damages as sharp objects (like the zipper on your jacket) could have ripped out a portion of the belt.

The reason a belt might not be flat after a accident, is because this "energy management loop" might have partially ripped, this is then why the belt isn't flat since a portion of the belt isn't tensioned anymore. So if the belt is not flat, follow the unflat belt until you reach the "energy management loop" and inspect it carefully. The energy management loop can be so well made and invisibly sewed into a label or similiar, so try to find the portion of the belt where its unflat before and flat after. Somewhere there are the energy management loop.

Uldis Barbans

Until today I thought it was just based on belt speed and centrifugal ratchet of some sort. There have been governors on steam engines for ages, working on centrifugal principle.

The orange piece is more intricately shaped than I expected.

mohamed hamed

3y↑1

Think you alot for this explanation! Could I know how you simulated the scene? Which simulation software you
use?

Anoop Das

Won't you have to change the entire seatbelt system after you press the break hard because of the piston system?, Isn't that a little inconvenient and also how will you know if the piston blasted and you have to replace/reset it before the next crash?

Vishakh Rakshith

Never imagined seatbelts were this complex

-Archie V.-

4y↑4

Several hours ago I in my car wondered how does a seatbelt work. Now I opened YouTube and the first thing I saw in my subscriptions is this video!

drifter13

AI Overlord

Jake Meier

4y↑1

I believe there's an error with the explanation of the gas generator. These are tied to the airbag deployment. Otherwise a hard step on the break to avoid an accident could set them off and render them useless in the future.

Rahul Chintapalli

3y↑1

Never thought of the science behind seat belt. Thank you

Prg_channel

4y↑1

Every time, I sit in car I wonder how does seat belt work and finally, I know now, thanks guys

Hasnaka Amarasinghe

Very helpful information.By chance I met this channel today and watch two videos so far. It gave me more details. Definitely will be watching all videos. Keep it up

Winten Sisty

2y↑1

3:10 We can also test this mechanism works in your car by parking at very steep downhill. and try to pull the seat belt slowly... It just happend to me by chance and came to know about it...

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