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- Mar 30, 2022
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Wow!! Clearest rear wheel steering video I’ve seen yet!
I'm thinking it would be speed dependent for the most part. Below 10 and they turn in opposition to make tight maneuvers easier. And then above a certain point they turn in the same direction to increase stability during lane changes. For crab walk and other things I guess the screen would be the key, some setting like carwash mode or maybe an off-road mode. But definitely not a button like GM's Quadrasteer .Just spit-balling here...
Does anyone have an idea how a driver would operate this function? As most of the Tesla vehicle interiors are button free, I imagined it could be a control in UI settings, but this could be cumbersome. Trying to operate UI and steering wheel while navigating a tight turn in a busy parking lot could be stressful.
I imagine the operation could programmed to be activated by the steering wheel in the right conditions. Low speed, steering at or near lock, then the back wheel turns to decrease turn radius. It could be initiated by increased tension on steering wheel as a haptic feedback to let you know your in 4 wheel steering.
Crab walk type 4 wheel steering would be a little more tricky to operate. Vehicles aren't designed to moved this way and it's applications may not be readily apparent. Would it be practical to use to change lanes at high speeds or would that be dangerous? Would it be used it towing hitch alignment or assist in reverse while towing? I think obstacle avoidance for rock crawling would be more low yield than these other use cases.
I know there could be as many applications as people using the car but what will yield the most practical and common applications for crab walk type 4 wheel steering? Crab walk seems more gimmicky to me than other type 4 wheel steering.
Yea, if the CT retains the originally-stated enormous wheelbase, it may need this feature just to have a competitive turning radius.Maybe not much more.
it only shows when the front are turned all the way, tho. Kinda like ai predicted; that would make it drive more like other trucks usually.
This is why I say it must me deterministic.Let‘s say the speed threshold that decides the steering mode is 25MPH. What will it do if I start a going around a corner at 20MPH but while in the corner I accelerate to 30MPH?
OH! Or... I’m on the Highway going 50MPH and changing lanes. A deer jumps out in front of me and I hit the brakes and swerve.
I’m not looking for an answer. Just sharing my thought process. 4 wheel steering Is probably way more complicated than we realize.
Agreed. Also suspect a force to neutral during high acceleration or deceleration. Like in my deer example. Also probably code that says do not enter, leave or change modes when front wheels are not pointed straight.This is why I say it must me deterministic.
Personally, I think there will need to be a large between zone. 0-20 MPH it is opposite/ parking lot/ minimum turn radius mode. 20-50 is neutral rear wheels. 50+ is highway mode.
Just an example. Experts would have more specifics.