Who is/will be the 1st TTR member to drive Electric Semi-Truck?

magnetic drag, the same force used to turn the not stator the rotor in the electric motor, just backwards, exactly the same idea an engine brake uses to soak up energy and spit it out in noise/heat, except with the electric motor you send that juice back to the batteries

 

A standard, single, non steer axle can be a max of 20k. A tandem axle a max of 34k. If Dot wanted too, they can weigh the two axles separately to ensure neither axle is over 20k. Practically they don't, but they could. Putting the trailer on a spread axle would allow for 40k.

A steer axle can run up to 20k if properly rated and has appropriate tires. H tires can be up to 13k (I think), most otr trucks these days are rated for 12.5k.

I could go on . , .

 

Long hauls like that won’t be in for awhile, where ev semis will shine immediately is local hauls.

when you slow or stop your truck, all that energy is turned into heat. EV’s will have Regen braking, in which the powertrain applies a negative torque to absorb the energy and recharge the battery.

 

evs are allowed to carry an additional 2,000lbs

 

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Actually, the part in bold is incorrect. Each axle in a tandem can only be 17,000 pounds....

Dont bother, you have already been proven wrong. The data provided by Telsa is correct. They didnt get into the details of each axle being limited to 17,000 but thats just you nit picking...

 

Care to show where each axle in a tandem are limited to 17k?

 

It isnt complicated. Google tandem axle weight distribution...

took me all of 15 secs.


From ATS website: What are the Legal Axle Weight Limits for Commercial Trucks?

What is the Weight Limit for a Semi’s Drive Axles?

To land within the federally-allowed 80,000 total pounds of gross vehicle weight, the two drive axles of a class-8 semi-tractor typically hold no more than 34,000 pounds.

Broken down further, this 34,000 pounds is distributed at 17,000 per axle and 4,250 pounds for every tire. (edit: I would assume the "per tire" reference was written before super singles were a thing).

From https://oversize.io/regulations/axle-weight-calculator

#2 Axle and Axle Group Limits
Every state has limits for a max single axle and each axle group weights.

Axles in the axle groups are almost always given a lower weight per axle than if they were single axles, e.g. a single axle in texas can carry 25,000 pounds, but a tandem (two axles in a group) can only carry 46,000 pounds, so 23,000 per individual axle in that tandem.

Shall I go on?

 

Alot of the electric cars (not sure if all of them do or just some of them) have whats called regenerative braking. Basically imagine if a jake break put fuel back in your fuel tanks... So u are climbing a big mountain out west and use say 10 gallons to get up the mountain - you can recover 6 gallons of that back by using the jake break going down...

Thats basically how i understand regenerative braking ... It restores power back into the battery packs and slows down the vehcile at the same time. Pretty cool technology.

 

Looks like the Pepsi/Tesla relationship is off to a rocky start.

One Of PepsiCo's Brand New Tesla Semi-Trucks May Have Already Broken Down (msn.com)