izeman said:i have another concern: i use regen braking with a directly connected brake switch to the controller brake pads. so i'm not using the brake's connector of the ca, which can imho not be used for regen, but for cutting the throttle only. correct?
if i don't release the throttle and pull the brake, the throttle is cut and the wheel is in generator mode. one could "forget" to release the throttle completely when braking, and as soon as the brake is released, full throttle is applied from 0-100% in 0 seconds.
how can this be avoided?
This is a tricky situation since the CA has no idea that you are doing regen by squeezing the brakes, as opposed to say going fast on a downhill and getting regen currents that way. The best solution right now if you have the ebrake going to the controller is to also splice your brake signal up the CA's ebrake input too. Then it will disable the cruise and cutout the throttle etc. while the basic regen functionality of the ebrake signal going to the controller is unaffected.
The better solution will be to install a mini break-out board on the 6-pin connector that senses when the CA's throttle output goes to 0V (as opposed to the MinOutput value), and then triggers the controller ebrake input from that. I alluded to the fact that we'd be making such a mini 'interface' board last year and we've finally got them just about ready. Then you'll be able to get actual regen from the one CA-DP cable without an additional set of wires from the ebrakes to the controller.
-Justin