aliensTesla Claimed Cybertruck Could Pull “Near Infinite Mass” — What Does That Even Mean?
But Is It “Near Infinite?”
As Jason Torchinsky at The Autopian mentions, there is a way to calculate drawbar pulls based on the torque of the vehicle. If you choose a towing target with low rolling resistance, and use a lot of torque (something Cybertruck will have), the pulling capacity (not towing, but pulling) should be in the millions of pounds. So, yes, the numbers will be very big (once we have them).
But the problem with “near infinite” is that it’s a meaningless term. It’s not just vague, but literally meaningless. Mathematically speaking, something can either be infinite or not. If there’s too many to possibly ever count because you’d never get to the end (because there is no end), then it’s infinite. If it’s countable at all, even if it’s a really big number, then it’s finite. In other words, something is either infinite or it’s not, kind of like someone can either be pregnant or not pregnant. If a person was “near pregnant,” then they’re just not.
"The persistence of an electric motor's torque is why our rail system uses diesel over electric. The diesel engine cannot stall like electric."Are you sure you read my response? My point was about the electric drive not the diesel.
The ultimate commercial, can the truck pull my son out of bed?with low rolling resistance, in 2019 Ford’s mule BEV prototype pulled >1M pounds of train
Was a silly stunt then, and versions of it remain silly. I guess these kinds of snake oil stunts (see CT “towing” battle with F150) are effective on someone, but to me they’re a turn-off.
Yes, your understanding is almost correct. Where we disconnected is the intent of the word "stall". What I had hoped you would understand is that stall does not equal die. When a electric motor stalls, it is still working against the load and inertia. When a diesel stalls it dies and you have to start it again. So, we agree, Diesel drives the generator at a consistent RPM providing the electricity only."The persistence of an electric motor's torque is why our rail system uses diesel over electric. The diesel engine cannot stall like electric."
Perhaps you mistyped. Diesel is not the motive power. It only turns the generator that powers the electric motor.
Thank you for clarifying. I used what I was taught was the correct descriptive term.I read Challecho's comment as understanding the concept of Diesel/Electric locomotives. Sure, although the "use diesel over electric" might sound like "use diesel INSTEAD of electric", the rest of his comment proves that he meant "uses diesel powered generators to provide electric current to electric motors driving the wheels. "Diesel over electric" is one way people often refer to diesel/electric locomotives.
Have you seen this delivery calculator?You know these websites are needing new Cybertruck info bad when they’re just now questioning something that has been on the Cybertruck website for over 3 years…
The order date calculator is complete BS, of course.I wish to have this same level of optimism.