Simple regen design

[charlesv842]

I drew this simple circuit to use a motor as a regen for a motorbike. It would use diodes that I would be able to turn on or off manually. It is a hybrid so there is also an engine. A voltmeter would used to monitor the battery voltage because there is no regulator. Do they make simple regulator components that can handle high current? I can only find automotive reg/rectifier blocks.

https://s1356.photobucket.com/user/...[user]=145600744&filters[recent]=1&sort=1&o=0

 

[Schlafmutze]

A efficient regulator like that ends up being close to a complete motor controller with DC regen regardless.

Diodes also have a pretty high loss when used at low voltage slike 12v.

 

[kdog]

I had a mtn board with controllers that didn't have regen. I installed some 50amp auto relays to switch between power mode (motor) and a regen circuit I made. It was a learning experience, as in I learnt that switching high current DC is a pita. The relays fused shut (no brakes) or failed open (no power). I decided, to dump the power in a home made wire wound resistor (nichrome wire wrapped around an old cut off wheel) which glowed red hot on decents. That was easier but still the switching was always the issue cause you're always switching under big loads. For a motorbike you'll be looking at hundreds of amps to deal with. You'll need some very beefy gear to deal with it reliably. Everything will need to be able to deal with a huge spike in current (and also voltage spikes) and you'll need to be ready for the harsh deceleration when you hit the switch (the one that controls the mega contactor) Ideally you'd want variable Regen but you'd just get a controller that has that built in.