Altering regen on the fly

[FFMan]

I'd like to able to alter the regen load dependent on several factors, and the only option appears to be via CAN, which implies i need to go to CAN throttle also, which i don't want to do as i like the fact the motor and inverter just operate without any external Arduino etc on their own.

Is it possible to either use a digital pot controlled by my arduino, or simpler still feed the output of an Arduino adc to the regen input on the inverter ?

[Bratitude]

you can alter regen on the fly with a pot directly. can is not your only option.



parameter: brknompedal / brakeregen

if your wanting to have the Arduino control regen can is the safest

[muehlpower]

Here is the input circuit for the LDU. I think it's the same with you. You can, for example, pull the signal externally with a 10kOhm pull-up resistor at 10V to 5V and lower it with an arduino with a mosfet to ground and PWM as you wish.

[arber333]

I'd like to able to alter the regen load dependent on several factors, and the only option appears to be via CAN, which implies i need to go to CAN throttle also, which i don't want to do as i like the fact the motor and inverter just operate without any external Arduino etc on their own.

Is it possible to either use a digital pot controlled by my arduino, or simpler still feed the output of an Arduino adc to the regen input on the inverter ?

I use a 5K linear pot to open or close power of regen while throttle is released. This is also handy in winter if ice forms on the road. I simply change pot to minimum so regen is near zero.

[FFMan]

> I use a 5K linear pot to open or close power of regen while throttle is released

you do this with your hand or is it connected to the brake pedal ?

[arber333]

you do this with your hand or is it connected to the brake pedal ?

I do this by feel. I use 3/4 turn pot with a small threaded rod inside pot plastic. So i can feel where the zero and final position are. And in between...

I did use the colvern 5k linear pot under the brake. But it seems it soon developed irregular reading in the 30% area, just where it matters...