differential motion (unlock)

[yz85mp]

i designed one of these on inventor prof 2012 for the hpi savage nitro rc truck for my college course...it looks super similar to yours

[mreeuwij]

ehm, not the right one turns faster, but the left one...

[sanbenedettocrema]

@mreeuwij this is the front axle: the *right* wheel turns faster!

[mreeuwij]

@sanbenedettocrema one goes from the video, there is no indication whats front/back "left" or "right" in the video, so one uses the perspective they have in the video. As such, in the view, the left one is turning faster, unless you have it in japanese mode with horizontal invert video mode. :P

[sanbenedettocrema]

@mreeuwij as you prefer. but, since this is the front axle and the engine is on the back, in the video the vehicle is coming to you, so you see the right wheel of the vehicle turning faster. bye

[mreeuwij]

@sanbenedettocrema lol, and in most cars the engine is in front, well, that is also nicely "explained" in the vid....

[88mArmyProud]

@sanbenedettocrema how do u know its the front axle?

[imthestein]

@mreeuwij Actually I figured this was the front axle based on the orientation of the central axel and the motion of the wheels. So it isn't that much of a stretch to determine this is the front.

[kazikw1]

Its wrong. In real it cant work.

[sanbenedettocrema]

@kazikw1 As you prefer, but... it does!

[007foppe]

wel there is a easyer version of this one lol back in 192x or something lolz

[lunkprab]

Would you explain to me how the ball differential work?

[XiphosDragon]

Any videos on posi-traction?

[GatremagWenYm]

Im so lost in kinematics... im only in part design and sketcher

[1337gam3r07]

Is this a limited slip diff?

[sanbenedettocrema]

@1337gam3r07

nope

[AlexisRubik]

Do you have this same video but Blocked ??

[sanbenedettocrema]

@AlexisRubik

actually I cannot upload it... but it's easy to figure out: simply both wheels (flags) turn synchronously...

[993Darek]

how is it controlled which wheel spins faster than other one?

what happens when one wheel is on ice and second one stays on a road?

does only one wheel spins, or torque is transmitted on both wheels?

can any one explain it to me please?

[sanbenedettocrema]

@993Darek

differential is a 2 dof system, this means you have to define 2 conditions in order to univocally define how the system works: the reaction of the ground below each single wheel!

[kicegol]

@sanbenedettocrema Can you show some kind of equations or adress me to one, I dont understand either.

[ElPatillaDeCadi]

Have a look:

ww.youtube.com/watch?v=vBm-SzO­3ggE

[allaussiedownunder]

Can see where it may have its advantages,on dirt speedway....great to see someone looking outside the square

[TheNeurall]

what is the point of this? everything rotate differently

[jedimastert0810]

i get it...that is very cool

[theoutfielder40]

its'amazing...can u imagine if the car's two wheels connected to this gearing have the same RPM during Left turn or right turn specially hard turn.?,,,

[hancash]

ok i have a clk 320, 2003 has 80km on it,i hear wierd grinding noise when i press on the gas, the sound is clear at 70km/hour. Is that the differential? or what excatly.Plz some1 reply.

Thanx

[guyinfun]

@hancash

It is probably not the differential. if diff is bad, you will have issues at every speed and not necessarily between 0-70!

[SolidWater0]

why one goes faster than the other?

[magneticmagnum]

This is the point of a differential... For example, if a car were to make a right turn on a road, the left wheel would turn faster than the right wheel. This gear will allow the car to not 'lock' up.

[SolidWater0]

ok but if you accelerate one wheel will go faster than the other.

[15point51]

@SolidWater0 No, one wheel won't go faster when you accelerate. The wheel will only change speed when you're turning. ( one of the wheel's DOESN'T accelerate it just slowes down )

[theoutfielder40]

you are absolutely right,,,,that's why it is amazing and brilliant mech. design

[Metallikgirl]

hi

excellent work!

Im working in a model with conical gears, wich joint I have to use if I want to make a simulation in kinematics???

Light me please!!

[brook61]

Thanks for an great animation, I don't see "streetsledz" doing anything original. Keep up the good work

[rbmdl]

nice i like your video

[1918twihard]

IT'S STUPID

[streetsledz]

man you guys are retards! The title says pro engineer, so he created it in pro engineer. the right wheel turns faster cause in a corner its the outside wheel, so it cant be on a solid axle

[sanbenedettocrema]

1. no: catia v5

2. the vehicle is turning left, so the right wheel, the external one that you see on the left side of the video, has to turn faster.

[TJvigilante]

"Solid axle" means a live axle with axle tubes out to the spindles attached to the center section, rather than an independent suspension with halfshafts out to spindles/knuckles, not connected with the center diff pumpkin.

And a differential allows two wheels connected to one driveshaft to turn at opposite speeds around corners while still receiving power from the driveshaft. Older style axles only had one wheel powered, the other was not connected to the driveshaft at all.

[sanbenedettocrema]

Not at opposite speed, at worst at different speed.

[TJvigilante]

Yes, different is what I meant.

[CA3B20A3G]

@sanbenedettocrema haha imagine that, having a wheel start spinning backwards when you go around a corner

[sanbenedettocrema]

@CA3B20A3G not properly like that, but... if you want, have a look at "differential motion (unlock) - II" (just uploaded). how can it be? I know at least two situations...

[aello465]

Yeah, havent you seen 'My Cousin Vinny'??

[TABAGfrancis]

Please watch:

SUPER-EFFICIENT ENGINE Newest Design

[sms250684]

@streetsledz some guys here hav no engineering background n dont know wat these software mean so be a little patient wid dem !!

[Anomiman]

I have an invention that I wanna develop ... does anyone know a skilled draftsman or someone who would be willing to go into business ?

[itsmycrap]

@1918twihard I like how you call someone an idiot and say "YOUR AN IDIOT" rather than "YOU'RE AN IDIOT"

[r32adt3db]

essentially, what is a differential? does it just transfer power from one direction into another?

[cyborgtroy]

A differential lets you split power between two output shafts.

In a regular car, you have a single driveshaft, but the wheels turn at different speeds when you corner.

The differential allows one wheel to turn faster than the other. Look it up.

Electric cars occasionally have multiple motors. In this case, a software-based differential might supply extra power to the outside wheel's motor to make it spin faster. The concept is the same.

[roflball]

how did you do this?

like what software

[sanbenedettocrema]

catia v5

(google it!)

[cja2648]

yeah that is what i was think

[cja2648]

what is this done in??

[acekingie]

pro/e or solid works i guess

[acharad]

Explains a work of an open differential gears very well.

And here is the dramatization of using locked or open differentials :

watch?v=q-rQTHMVAuw

[0671085940]

how come the right wheel turn faster?

[xdragosx]

why do you say unlock.. this is an lsd isnt it?

[sanbenedettocrema]

'unlock' because this differential has a locking system (not included in this video) that allows the driver to lock the left and the right to turn in pair (used by tractor).

[Nurse411]

yeah :)

[Pancrazioo]

You mean left weel :P Thanks for sharing.

[sanbenedettocrema]

No, I mean right wheel: the vehicle is coming to you, so what you see in the left side of the video is the right side of the vehicle.

[Pancrazioo]

Ah of course. I was picturing the differential in the back of the car. But that would be stupid since he would be driving in reverse than. Thanks for correcting me.