[1984rangerDiesel]

Hi folks, trying to better understand regen braking with DC motors and controller. I understand that the DC motor is advanced, so there may be adding and brush damage.

1) to recharge the battery, one must run the controller below the required duty cycle to maintain speed. I.e. if 100% d.c. means 1000 rpm and the d.c. is adjusted to 50%, the speed wil change for 500rpm. If the motor rpm were somehow maintained @1000 rpm w/ 50% d.c., with an engine for example, would this scenario change the batteries?

Or

2) in order to charge the batteries, the controller must attempt to run the motor backwards, using the other half of the H bridge. This makes sense to me, as I understand that it is the back-EMF that will be charging the battery.

Or

3) something completely different.

Basically, to charge my batteries going down a hill in my golf cart do I #1 let off the accelerator slightly, #2 throw the cart in reverse, or #3 my golf cart will never charge its batteries, no matter what I do.

Hoping to make a hybrid assist for my engine, similar to the Buick BAS system.

Thanks for any clarification!