Consistent regen performance with load dump resistor - idea

[AWDtsla]

You are assuming that the system (coolant capacity, pack volume, pump capacity, individual cells, etc...) would be able to handle 30kW of direct heating.

A big, assumption, IMO.

Turns out coolant is a good coolant. Let's take a 300 horsepower engine for example, that's ~220kW output. Let's say it runs at 20% thermal efficiency (which would be laughably good), that means the waste heat at full throttle is 880kW. The coolant system in an ICE car deals with that just fine, and that is a big number.


No the only problem with the Tesla is if there is a max delta-T for the batteries that you can't exceed without damage.

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Siemens Installing First Rail Regenerative Braking Supercapacitor Storage in Portland - The Green Optimistic

You could also use regen power to spin up a flywheel storage system, and then use that energy for acceleration when needed.
Kinetic energy recovery system - Wikipedia, the free encyclopedia

We want to add a flywheel do we? Why not just add warp drive?


How I see the TMC designed car:

 

[TEG]

We want to add a flywheel do we? Why not just add warp drive?

Not necessarily saying it is a good idea, just pointing out that it has been tried.
Tesla seems to have avoided "too much technology" for cost, complexity and weight reasons.
I suspect that they considered all of these extra regen technologies and decided not to use them.

By the way, Tesla CTO JB has experience with such things:
JB Straubel - Wikipedia, the free encyclopedia

...Before Volacom, Straubel worked with Harold Rosen and Benjamin M. Rosen at Rosen Motors as a propulsion engineer developing a new hybrid vehicle drivetrain based on a micro turbine and a high-speed flywheel. Rosen Motors ultimately closed but both main technologies carried on with commercial success, the turbine at Capstone Turbine (CPST) and the flywheel at Pentadyne Power Corp...

 

[keshi]

And then there's running a coolant loop by the brake pads as a sort of crappy middle ground. Won't save your brakes, but will heat the battery with excess energy in winter.