Some musings on future power trains

Reisender wrote:

JRscooby wrote:
I have been thinking a little different. From what I have seen the modern EV would handle all the duties of a toad. And spinning a electric motor with no power to it does no damage, as long as it stays in normal speed range. So no transmission issues, just release parking brake, and control brake system from MH.
Part of that control could be make the regen braking come on with or before jake. Think would be a cheap (I'm using 'cheap' as relates to energy, not always money) way to charge, using energy that would need to be dissipated. Yes, once battery is full charge you loose that whoa.
But we can make things more complicated. Existing tech allows car to slow itself if too close to another vehicle. Could a target be but on MH, so the drivetrain can be turned on, so when accelerating or going up hill the toad pulls itself, or even push the MH? This would mean the engine of MH would need less peak power.

Kind of a cool concept, although I think the battery would fill pretty quick. Just to give some real numbers, our Tesla sees regen rates of 80 KW.

I think within a few years there will be Motorhome manufacturers building motorhomes on complete Electric heavy chassis from companies like Freightliner and Tesla. The performance and simplicity will be stunning. Like I said, batten down the pots and pans. Zero to 60 in 8-10 seconds in a 32 foot Motorhome. Woohoo. :).

Sure, the battery would charge fast. OTOH, could pull the batt down to say 80% pretty quick pushing the MH. And retro-fit the controls on a existing MH would be cheaper than replacing the MH.
As for MH on heavy duty E chassis. Compare the fuel used by MH to the amount used buy a working truck. Truck running deliveries every day could pay a premium price, and make it pay over the life of vehicle. Unless the price is close to IC the average MH owner will only be buying bragging rights. That is not to say bragging rights doesn't sell a lot of snot.