- First Name
- May 25, 2021
- Reaction score
- Little Rock, Arkansas
- Model S, Model 3, CyberTruck Tri-motor reservation
Computer controlled 4WS may have a positive impact on tow rating rather than a complication. The J2807 standard for GCWR includes a towing stability component that can be improved by 4WS. (See TFLT's trailer testing done with ZF's steering system )Tesla is going to have to design some super amazing rear axle / suspension system that can handle towing 14k AND now has rear wheel steering.
I have to keep telling myself the CT is a 1500 series truck. Maybe a 2500 sorta kinda wanna be.
I'm having mixed feelings about the rear wheel steering. RWS is definitely a step in in the luxury pickup direction, and a step away from a heavy duty truck you would want to tow with.
There are many ways to accomplish RWS.
Porsche has RWS on the 911. It uses variable length tie rods. Simple actually.
I've wondered what the weak link tow rating component would be that decided the maximum tow rating for the CyberTruck. It would have no trouble getting a heavy trailer up to speed, no problem hauling up the Davis Dam incline without overheating, and no problem generating the torque needed for the 12% incline tests. I guessed that the stopping power would be the Achilles heel for CyberTruck, or the ability to minimize trailer sway. ZF's system (as seen in the above video) can increase the tow rating if sway is a problem, and since the stopping test has a "stay in an 11.5' lane" component, a computerized 4WS system would improve its ability to stay in the lane under heavy braking.
I really want the CyberTruck to increase the tow rating above 14K lbs announced at reveal, because I want my CT to pull my 5th wheel RV when I retire. 14k trailers are nice, but there's a LOT of other amenities to be had if you can step up to 16.5K. I will love it if the 4WS allows that.