If you don't already have one to go along with your Castle Creations ESC, the Castle Link USB programmer is an excellent tool. It allows you to update the software on your ESC and super-fine tune all your settings like motor timing, throttle response, low voltage cutoff options, etc...
Specifically, the software allows you to set the voltage cutoff in 0.1v increments. It also gives you the option of hard cutoff, which cuts power entirely to the motor, or soft cutoff, which throttles the motor to keep the voltage above a certain limit. So I propose setting the cutoff type to soft and the level to something close to your expected voltage drop from your pack. For example, I would set mine to 31.2v for my 12s Headway LiFePO4 pack which is 2.6v per cell. This way, a hard pull will trip the cutout and automatically throttle your motor to prevent an over current situation. As the pack discharges, you will get less and less peak power until it's time to go home and recharge.
What do you guys think about using the cutoff feature like this as a current limiter?
Just a thought.
Specifically, the software allows you to set the voltage cutoff in 0.1v increments. It also gives you the option of hard cutoff, which cuts power entirely to the motor, or soft cutoff, which throttles the motor to keep the voltage above a certain limit. So I propose setting the cutoff type to soft and the level to something close to your expected voltage drop from your pack. For example, I would set mine to 31.2v for my 12s Headway LiFePO4 pack which is 2.6v per cell. This way, a hard pull will trip the cutout and automatically throttle your motor to prevent an over current situation. As the pack discharges, you will get less and less peak power until it's time to go home and recharge.
What do you guys think about using the cutoff feature like this as a current limiter?
Just a thought.