4 ms·
Teslas have no resistor banks? A great omission.
by baybal2 5y ago
Teslas have no resistor banks?
A great omission.
- deleted 5y ago[deleted]
- meatmanek 5y agoWhy would a resistor bank be better than mechanical brakes? Both get rid of excess power as heat, and you probably need the mechanical brakes anyway.
- nwiswell 5y agoWhat is implied by the GP is that the cost of ownership for regenerative brakes is lower per joule. That's obviously true when that joule is "reused" and not so obvious when it's dissipated. Mechanical brake pads have to be replaced but I assume there is wear on the (more expensive?) parts in a regen system too.
- baybal2 5y agoElectric braking has close to no wear, and much cheaper EVs use it. A resistor bank with liquid cooling will be few kilogrammes at most.
- Unklejoe 5y ago> Why would a resistor bank be better than mechanical brakes? Resistors don't wear out like frictional brakes do.
- dreamcompiler 5y agoA resistor bank of the required wattage would simply be a big lump of dead weight most of the time. And it would need its own cooling fan which would add even more weight.
- jsight 5y agoIt isn't worth the complexity for the rare cases when it might be useful. Even if you live at the top of a mountain, the easier solution is to just not charge to 100% to account for your "free" energy gains when leaving.