Turning radius.

TheLastStarfighter

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The Rivian R1T is a quad-motor. The cybertruck is only single, dual, and tri motor. for the tank turn to work, the left wheels and the right wheels need to spin in opposite directions. The front wheels on the Cybertruck most likely won't be able to accomplish this without some engineering that would have no benefit other than the ability to do a tank turn. I don't think Tesla will do anything to try to give us the ability to Tank turn. If they wanted to, they would probably just release a quad motor but we don't know if that would be beneficial enough to make a quad motor over a tri motor.
It would almost certainly be possible with the Tri.
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TheLastStarfighter

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The air suspension is irrelevant.

The longer wheelbase with the front wheels pushed to the front corners should help vs a typical full size truck. Don't expect to park it like a civic, but expect it to be a bit better than a Silverado.
 

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It would almost certainly be possible with the Tri.
I would like to know how that would be possible without modifying the Cybertruck with the only benefit being the ability to Tank turn. If they can do something that gives other benefit or can manage a tank turn without changing anything, I would be interested to see that.
 

TheLastStarfighter

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I would like to know how that would be possible without modifying the Cybertruck with the only benefit being the ability to Tank turn. If they can do something that gives other benefit or can manage a tank turn without changing anything, I would be interested to see that.
It would be quite simple. The rear wheels would presumably already be ready to move in independent directions. If the front motor can power just one wheel and leave the other neutral, you could pull off a "tank turn". It wouldn't be quite as effective as a 4-motor setup, but I'm sure it would work OK. The ability for the front motor to power just one wheel would be useful for torque vectoring under performance conditions. I know the plaid setup is planned to have TV, but it may just be with the rear 2-motor system.
 

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That sounds like the most uneven tank turn I could think of. Even if they decided to set a mode for that with one front wheel turning and the corresponding rear wheel using less power for balance, if you are trying to do a tank turn with any wheel not spinning, you are putting more stress on the joints, the control arm, and the knuckle than what stress that would be present if all wheels were spinning equally.
 

alan auerbach

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I would like to know how that would be possible without modifying the Cybertruck with the only benefit being the ability to Tank turn. If they can do something that gives other benefit or can manage a tank turn without changing anything, I would be interested to see that.
The longer the wheelbase the less effective the skid-steering. That's why you see it only on short-wheelbase vehicles (usually construction equipment, because it's hard to make steer-turn wheels strong enough to handle heavy loads and stresses). With heavy tracked vehicles, there's no alternative.
 
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