Beachcruzer
100 W
So I'm in the process of upgrading my 'Basket Case' cruiser with a new Lyen 12 fet sensorless.
The motor is an Aotema front hub, nominally 750 volts. The stock no-name controller supplies 35 amps. I've been running 12s lipo, just about 50 volts off the charger. That should be about 1750 watts. (There's no CA plug, and no manufacturer's info on the controller, so I'm going on hearsay.) It tops out at about 30 mph and pulls pretty well in my hilly area.
The Lyen sensorless is set to 52 amps. CA is showing just under 2500 amps constant, with peaks to 2700. Here's the catch: It feels much slower than the stock controller, with less torque. When I give it full throttle, the power seems to oscillate, making the bike surge slightly.
Something doesn't seem quite right.
Rather than start right in bugging Lyen with (more) noob questions, I decided to try some different phase combinations. I had initially connected them Y:Y, B:B, G:G, because, well, it seemed to make sense.
I just spent a half hour going through all the combos (only six for a sensorless setup, thank you jesus). Long story short: three combos make it go, and three make it go backwards.
The three forward combos are indistinguishable in performance. So what am I missing? Is there one 'right' phase combination, or does it not matter?
The motor is an Aotema front hub, nominally 750 volts. The stock no-name controller supplies 35 amps. I've been running 12s lipo, just about 50 volts off the charger. That should be about 1750 watts. (There's no CA plug, and no manufacturer's info on the controller, so I'm going on hearsay.) It tops out at about 30 mph and pulls pretty well in my hilly area.
The Lyen sensorless is set to 52 amps. CA is showing just under 2500 amps constant, with peaks to 2700. Here's the catch: It feels much slower than the stock controller, with less torque. When I give it full throttle, the power seems to oscillate, making the bike surge slightly.
Something doesn't seem quite right.
Rather than start right in bugging Lyen with (more) noob questions, I decided to try some different phase combinations. I had initially connected them Y:Y, B:B, G:G, because, well, it seemed to make sense.
I just spent a half hour going through all the combos (only six for a sensorless setup, thank you jesus). Long story short: three combos make it go, and three make it go backwards.
The three forward combos are indistinguishable in performance. So what am I missing? Is there one 'right' phase combination, or does it not matter?