I've stripped a 24v,250w jambuster scooter to use the bits to make an electric kart for the kids! So far so good, now I want to get clever!!! I've used a DPDT Cross-over switch rated at 10A to create a reversing switch, changing over the polarity of the motor; this is tested and works fine. However, does anyone know what the potential problems are of operating this whilst scenario a) the throttle is off but the kart is still rolling or worse still, b) the throttle is still applied and the switch is flicked to reverse the motor polarity?
Under test on the bench with no load, the motor stops violently quickly then reverses direction. Could this knacker the speed controller or the motor if this happened under load? If it is a problem, is there a simple solution or is a mechanical interlock advised? Just for info, the controller does not have regenerative braking as far as i can see, its just a generic chinese jobby!!!