kingjamez said:Why sensorless?
rojitor said:Pm lyen. He might have some.https://endless-sphere.com/forums/memberlist.php?mode=viewprofile&u=1370
Also this one below could do. I used many lyen's and can vouch for them.
https://es.aliexpress.com/item/Gree...963725.html?shortkey=ymANVVRr&addresstype=600
rumme said:rojitor said:Pm lyen. He might have some.https://endless-sphere.com/forums/memberlist.php?mode=viewprofile&u=1370
Also this one below could do. I used many lyen's and can vouch for them.
https://es.aliexpress.com/item/Gree...963725.html?shortkey=ymANVVRr&addresstype=600
Have you tried that sensorless controller from Ali express ? If so, did it hold up well ?
rumme said:kingjamez said:Why sensorless?
I'm tired of having sensor wires break or short out...wanted to go with 3 simple thick phase wires.
motomech said:rumme said:rojitor said:Pm lyen. He might have some.https://endless-sphere.com/forums/memberlist.php?mode=viewprofile&u=1370
Also this one below could do. I used many lyen's and can vouch for them.
https://es.aliexpress.com/item/Gree...963725.html?shortkey=ymANVVRr&addresstype=600
Have you tried that sensorless controller from Ali express ? If so, did it hold up well ?
It's not a case of a sensorless controller being any more or less reliable than a sensored one. It's a case of how reliably does it "sync's up" with the motor.
I have used several sensorless controllers because one of my long-time fav. motors had a Hall failure. They all worked about the same, with a Lyen being the best by a bit.
BUT, they all were NOT 100% reliable to sync-up at start. There are certain situations, like being stopped with the frt. of the bike facing up hill that require a special technique. In that scenario, you have to pedal at least a half a turn before applying the throttle, otherwise, it will not sync-up and the motor will throw a "Hissy Fit". Not the "end of the World", but a hassle none the less.
Frankly, I don't understand the logic of using a sensorless controller with the Halls intact.
Sensored results in a better overall ride.
dogman dan said:You only need to roll a half inch forward, as you apply throttle to get a sensorless controller to take off forward with no stutter.
If you let the tire creep back a half inch as you grab throttle, it will stutter, and want to run backwards at first.
But for higher power levels, like 40 amps on up, you really do want halls. AND, you want a motor that does not cook em off. Its not hard to keep your wiring connected, but over juicing a too small motor will leave you having halls issues, because your motor cooks them.
What you need is a controller that runs either way, so if you do have a halls issue, it will still run without them. Grin is one place that has them, and I bet Lyen does too.
markz said:Greentime has both sensor and sensorless in ONE controller
markz said:Just replaced my halls and the tester doesnt show anything. Gotta opener her up and see whats going on, really wished my 48V-84V 15fet 45A Greentime Sensorless controller was here already.
MadRhino said:Any sensorless controller can apply power power out of sync at some occasions. When you feed +10kw on a start, you don’t want this for all of your senses. Well, maybe not all of them but... it does make an unpleasant sound, then it does smell bad, then you burn your finger touching it, put it in your mouth and spit, then you see smoked melted stuff and say sh*t...
You can add a 6th sense, for I knew inside of me it would freakin happen.
Seriously, Lyen does sell a 12X4110 sensored/sensorless controller for cheap. It can be upgraded to feed 10kw phase at 100v, and it did survive a complete riding season. Unplug the halls, it does switch sensorless. I did ride it sensorless for the rest of the winter, and it wasn´t that bad because slow start is a habit on dirty winter streets. Springtime fried at the first hard start. Good backup to have still.