They see me turning...

[TyPope]

Hey, everybody. I have a question to which I've been unable to find a reliable answer.

How much do the rear tires turn and is that going to be increased (again?)?

If I recall correctly, the first ones didn't have rear steer.

Then, Tesla made some with like a 3.5 degree turn.

Finally, Tesla said they were going to update that in a future update to 10 degrees.

But, we got 7 degrees instead.

What's our current turning radius (or circle, if you wish)? and will it be updated/improved again?

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[devdrone6]

I don't know exact number but I've taken multiple u-turns and can easily do from a left turn lane into a two lane road. Which is a bit more than my Porsche Cayman S, by probably 8ft.

 

[Friday]

T Sportline did a radius "shootout" and came up with: 37.1 ft for the Cybertruck.

Somewhere in the last few months, either Elon or Hans was quoted that 10 degrees was the overall goal eventually. More driving data from the CT onroad was needed to get to that goal.

 

[scottf200]

Somewhere in the last few months, either Elon or Hans was quoted that 10 degrees was the overall goal eventually. More driving data from the CT onroad was needed to get to that goal.

I'd wonder if they can dynamically change FSD modeling for regular 90 degree corners (wheels in opposite) or for lane changes (wheels in parallel) ... or if they'd need to allow it on test vehicles and collect more data.

 

[TyPope]

This is what I was talking about. So, we know it turns sharper than it seems it should, but will it ever turn sharper? I like to think it's at 7° now and will improve to 10° in the near future (hello, Christmas update?)

I'd also like to see Tesla add a crab feature but call it something better than that because, well, GM calls it that... Imagine being able to pull near a parallel spot and zig zagging toward the curb and back. I mean, for those who don't parallel park very often. But lane changes... nice.

 

[HaulingAss]

Yeah, a Toyota Yaris still beats the Cybertruck turning radius by nearly 6 feet!

I'll take any improvements Tesla deems sensible, but it's already far better than the competing trucks, including the Silverado, which has 4-wheel steering but not steer by wire to make it easier to turn tightly.

The Cybertruck is in another world.

 

[HaulingAss]

I'd also like to see Tesla add a crab feature but call it something better than that because, well, GM calls it that...

Tesla shouldn't need a reason to not name a feature after pubic lice. ?

 

[getsometom]

My concern with the rear turning wheels has been not hitting vehicles parked next to me when pulling out of a parking spot. My muscle memory for turning isn't taking into account the turning angle of the CT with front and rear turning wheels.

 

[REM]

My concern with the rear turning wheels has been not hitting vehicles parked next to me when pulling out of a parking spot. My muscle memory for turning isn't taking into account the turning angle of the CT with front and rear turning wheels.

This has been my concern as well. I think Tesla is going to be very cautious when it comes to impressing the turn radius of the rear wheels. I'd feel comfortable saying that most people don't have a good frame of reference for how differently this truck turns.

Nearly everyone I let test drive doesn't understand how sharply it moves. The only people who seem to quickly get a good feel are commercial truck drivers.

 

[scottf200]

I'd also like to see Tesla add a crab feature but call it something better than that because, well, GM calls it that... Imagine being able to pull near a parallel spot and zig zagging toward the curb and back. I mean, for those who don't parallel park very often. But lane changes... nice.

Sidewinder is also taken:
Title: Don’t call it crab walk – Chevy Silverado EV packs new ‘Sidewinder’ 4 wheel steering
Jo Borrás | Nov 3 2024
https://electrek.co/2024/11/03/dont...ado-ev-packs-new-sidewinder-4-wheel-steering/

 

[Gaximus]

I have nothing to contribute to the convo, other than the title is amazing, well done. And crab walk would be cool.

 

[XCeilidhX]

Agree. I sang the title of this thread in my head before clicking. Props, OP.

Cheers

 

[HaulingAss]

My concern with the rear turning wheels has been not hitting vehicles parked next to me when pulling out of a parking spot. My muscle memory for turning isn't taking into account the turning angle of the CT with front and rear turning wheels.

That's not how Cybertruck's rear wheel steering works. They actually help prevent the rear of the vehicle from hitting adjacent vehicles when turning very sharply.

That's because at slow and moderate speeds the rear wheels turn in an opposite direction to the front wheels. So, when turning sharply out of a parking spot, the rear wheels halp prevent the rear of the vehicle from dragging into the adjacent vehicle.

The rear wheels follow the front wheels more closely than in a vehicle with only front wheel steering.

 

[getsometom]

That's not how Cybertruck's rear wheel steering works. They actually help prevent the rear of the vehicle from hitting adjacent vehicles when turning very sharply.

That's because at slow and moderate speeds the rear wheels turn in an opposite direction to the front wheels. So, when turning sharply out of a parking spot, the rear wheels halp prevent the rear of the vehicle from dragging into the adjacent vehicle.

The rear wheels follow the front wheels more closely than in a vehicle with only front wheel steering.

I've never thought about it this way before. Obviously I'm no physics expert and thought having both front and rear wheel steering would move the fulcrum location further back compared to vehicles with only front steering. But from what you're saying, it sounds like the rear wheels' counter steer at lower speeds prevents collisions when pulling out of parking spots by moving the rear the opposite direction. Good stuff

 

[scottf200]

That's not how Cybertruck's rear wheel steering works. They actually help prevent the rear of the vehicle from hitting adjacent vehicles when turning very sharply.

That's because at slow and moderate speeds the rear wheels turn in an opposite direction to the front wheels. So, when turning sharply out of a parking spot, the rear wheels halp prevent the rear of the vehicle from dragging into the adjacent vehicle.

The rear wheels follow the front wheels more closely than in a vehicle with only front wheel steering.

I've never thought about it this way before. Obviously I'm no physics expert and thought having both front and rear wheel steering would move the fulcrum location further back compared to vehicles with only front steering. But from what you're saying, it sounds like the rear wheels' counter steer at lower speeds prevents collisions when pulling out of parking spots by moving the rear the opposite direction. Good stuff

Curious. I thought it was well understood that at low speeds the front and rear wheels would turn opposite but at higher speeds they turn in 'parallel'. I thought this was already on many cars in the past and that is how they all worked (ie. YT videos [1st vid below] and other articles I saw). Example picture from the first image I saw after doing a quick search. The YT below actually has some nice visuals that (to me) seem like the slow speed turns like the below pict (opposite) would be advantageous.

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