billvon wrote: ↑May 11, 2018 10:03 amIn general, I think resizing batteries and/or choosing the right battery specs are an easier way to accomplish this. The electronics to selectively route energy to supercaps rather than batteries is fairly complex, and supercaps have their own issues (i.e. voltage range.)
If you need to think about using caps to store energy you are working towards problems as you should solve the basic problem: the battery is not properly sized for the application. Having a proper sized battery usually solves many other issues you might get along the way like voltage sag, regen absorpsion and lifespan.
Just look at a average tesla: 50kW regen and capable of delivering 500+kW without going out of spec for the cells and a lifespan measured in decades.