Antonio Zanardo
10 mW
... however there is a unsolved problem.
At low speed (0 to 25-30Kph) the acceleration is hard to control. A slight touch of throttle and the motor revs up too quickly, while amps jump to high values.
In other words, at low speed the motor does not respond in a predictable way to throttle twist. It behaves almost like a on-off switch.
While reading some of your posts, I learned that a capacitor on the controller board regulates the ramp up acceleration; it should be the 10uF cap, located close to one end of the big 3.3k resistor.
I would think to replace this capacitor with a higher capacity one in order to smoothen those sudden amps peaks, regardless if the bike acceleration gets a bit lower.
I realize my question seems rather odd, as most people on the contrary wants to REDUCE its capacity in order to speed up more quickly.
Actually, my main goal is cutting amps peaks to not overload that weak 20A controller, and even if the bike loses some speed up capacity, I don't mind much. I can count on a high 60kph speed, which makes me happy.
Do you believe a higher capacity (20uF) could flatten the ramp up slope, thus providing the final solution to my problem?
Or else, which capacity should be suitable to begin with my initial trials?
Any suggestion will be greatly appreciated.
Antonio Zanardo
At low speed (0 to 25-30Kph) the acceleration is hard to control. A slight touch of throttle and the motor revs up too quickly, while amps jump to high values.
In other words, at low speed the motor does not respond in a predictable way to throttle twist. It behaves almost like a on-off switch.
While reading some of your posts, I learned that a capacitor on the controller board regulates the ramp up acceleration; it should be the 10uF cap, located close to one end of the big 3.3k resistor.
I would think to replace this capacitor with a higher capacity one in order to smoothen those sudden amps peaks, regardless if the bike acceleration gets a bit lower.
I realize my question seems rather odd, as most people on the contrary wants to REDUCE its capacity in order to speed up more quickly.
Actually, my main goal is cutting amps peaks to not overload that weak 20A controller, and even if the bike loses some speed up capacity, I don't mind much. I can count on a high 60kph speed, which makes me happy.
Do you believe a higher capacity (20uF) could flatten the ramp up slope, thus providing the final solution to my problem?
Or else, which capacity should be suitable to begin with my initial trials?
Any suggestion will be greatly appreciated.
Antonio Zanardo