Hello,
I just finished installing my ebike kit. I took the bike out for a test ride today for the first time. Overall everything is ok but I have two problems.
To start, my kit is Q128C 48V 328 rpm rear hub motor, KT36/48SVPR-20A controller, KT LCD3, and 48V 12.8Ah bottle battery with maximum discharge current of 30A. I have only PAS, 12 magnet, right hand side. LCD3 settings are:
Max speed = 45 km/h; Wheel size = 700c;
P1 = 227; P2 = 0; P3 = 1; P4 = 1; P5 = 15;
C1 = 7; C2 = 0; C3 = 0; C4 = 0; C5 = 8; C6 = 3; C7 = 0; C8 = 1; C9 = 0; C10 = n; C11 = 0; C12 = 4; C13 = 0; C14 = 2.
First problem is that speed on LCD3 is a little bit more than half of what is actually is. For example, if I am going 30 km/h, speed on LCD3 is about 17 km/h. I first had P2 = 6 but speed didn't make sense, it was barely going above 3 km/h. Then I changed P2 = 1 with similar results. Then I changed to P2 = 0 and speed is what it is now. It is more realistic but nowhere near accurate.
Second problem is that motor randomly cuts out for a second or less than a second. This happens at any assist level, at any wattage, seemingly at random. I changed battery voltage monitoring to P5 = 0 but I saw no voltage drop that would cause the cut outs. It is quite cold out right now, around 4 deg C so I don't think it is the controller getting warm. Either way it is happening at 150 W or at 250 W or at 450 W at various assist levels. It happened at PAS level 2, 3, 4, and 5. It only happens for a second or less, and could happen several times within 1 minute or it could happen once per minute. I am riding on completely flat ground with occasional bump.
I checked PAS, it seems to be properly registering all magnets when I test it, although maybe PAS cuts out randomly during riding. Currently I do not suspect the PAS.
Maybe the two problems are connected. I was thinking it could be related to speed sensor from motor or hall sensors? If the connection is not good, could this be the reason for random cut outs? Any help is appreciated.
I just finished installing my ebike kit. I took the bike out for a test ride today for the first time. Overall everything is ok but I have two problems.
To start, my kit is Q128C 48V 328 rpm rear hub motor, KT36/48SVPR-20A controller, KT LCD3, and 48V 12.8Ah bottle battery with maximum discharge current of 30A. I have only PAS, 12 magnet, right hand side. LCD3 settings are:
Max speed = 45 km/h; Wheel size = 700c;
P1 = 227; P2 = 0; P3 = 1; P4 = 1; P5 = 15;
C1 = 7; C2 = 0; C3 = 0; C4 = 0; C5 = 8; C6 = 3; C7 = 0; C8 = 1; C9 = 0; C10 = n; C11 = 0; C12 = 4; C13 = 0; C14 = 2.
First problem is that speed on LCD3 is a little bit more than half of what is actually is. For example, if I am going 30 km/h, speed on LCD3 is about 17 km/h. I first had P2 = 6 but speed didn't make sense, it was barely going above 3 km/h. Then I changed P2 = 1 with similar results. Then I changed to P2 = 0 and speed is what it is now. It is more realistic but nowhere near accurate.
Second problem is that motor randomly cuts out for a second or less than a second. This happens at any assist level, at any wattage, seemingly at random. I changed battery voltage monitoring to P5 = 0 but I saw no voltage drop that would cause the cut outs. It is quite cold out right now, around 4 deg C so I don't think it is the controller getting warm. Either way it is happening at 150 W or at 250 W or at 450 W at various assist levels. It happened at PAS level 2, 3, 4, and 5. It only happens for a second or less, and could happen several times within 1 minute or it could happen once per minute. I am riding on completely flat ground with occasional bump.
I checked PAS, it seems to be properly registering all magnets when I test it, although maybe PAS cuts out randomly during riding. Currently I do not suspect the PAS.
Maybe the two problems are connected. I was thinking it could be related to speed sensor from motor or hall sensors? If the connection is not good, could this be the reason for random cut outs? Any help is appreciated.