Ackerman Steering - Explained

What is the Ackerman principle and what does it mean in terms of how it affects my car and steering? Ackerman steering ensures that all four tires have a common point around which they rotate when the car is turning. This ensures that none of the tires are required to slip in order to complete a turn.

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[marvelwidjaya]

All i could think of was "How an Ackermann steers the ODM gear to slice up titans"

[sayantansarkar]

I have also seen other videos regarding Ackerman steering geometry, but trust me I had never understood it so smoothly as this one. Sir, you are a genius teacher.

[micklavo]

Thanks! Very god explanation. I bought AWD and salesman could not explained how it work. You are brilliant teacher and explained it very well!!!!

[Jackisaboss]

Working on a project for school (go NC State!) and needed an overview of the Ackerman model. YouTube brought me here and it's crazy seeing how your production has changed in 8 years

[lezellu]

I'd like to thanks you alot, you learned me more in 3 minutes, than my tearcher in 4 hours.

[gauravpandey]

Dude!!I clicked it after 4 years one more time.. Loved your way.

[sebyfloristean]

You helped me with my car set-up in assoluto racing
Thy engineerening explained from the past :)

[EngineeringExplained]

High speed stability. Forklifts are rear steering as it helps in tight spaces, but at high speeds you'll spin around very easily with rear steering.

[EngineeringExplained]

Hmm, I've got a book "Automotive Engineering Fundamentals" by Richard Stone and Jeffrey Ball, but it doesn't have too much on steering design. It does go into some detail on design as far as understeer/oversteer, and the caster/camber/toe/etc..., but it's more of a general overlook. Wish I could be of more help. My best advice would be to search forums and see how this has been done by others, and what success people have had with certain setups. Good luck to you!

[ChrisAllenJ]

I just started as a quality engineer. Thanks for the quick run down of why differentials are needed

[EngineeringExplained]

Race cars are typically rear wheel drive, and thus do not require a front differential.

[semt-ro]

Thanks for teaching and sharing, on such a young age. We need more of that, because telling your knowledge to other people makes getting smarter so much faster! If we all do it, we can become much smarter in one life time. Spread the word!
sinc.,  a college student.

[brando]

Cool video... I always noticed on cars that the inside tire always seemed turned out farther than the outside tire... now it all makes sense. Keep up the good work!

[EngineeringExplained]

You're welcome! Thanks for the kind words! Share with you're friends and maybe I'll hit that target haha

[EngineeringExplained]

A differential allows for you to have varying speeds between the left and right wheels, or front and back wheels. Ackerman steering says that the left and right wheels will rotate at varying speeds.

[EngineeringExplained]

Yes, which is why they use open differentials, so speed can differ. Watch your average 2WD in snow, one tire will spin while the other remains motionless. This is due to the differential.

[EngineeringExplained]

Correct, there are full-time and part-time 4WD, as well as AWD and automatic AWD. Different companies use many different names for each (it's a become a branding thing), however I will give definitions for what I will refer to each as, and how to differentiate between them.

[EngineeringExplained]

Differentials have fixed gearing, yes, but each side can rotate at a different speed. Type in "how differentials work" there's a video with several million views that's very good at explaining it. With an open differential, if one tire is stuck, the other tire can still rotate. This is an extreme, but shows you that the speeds of each wheel can be different.

[shashvatmehta]

It has been shown in the video that all the wheels turn for a common center.
So, the angular velocities of all the wheels will be the same.
Their linear velocities would be varying. ( as the radius from the center varies)
The descending order discussed might be true for linear velocities, but not for angular velocities.

[haruncetin]

Dude im in 2020 worlds maybe going to end but your vids have helped me through my college course if you can reply it would make my day. Thank you.