Glenn74Swe
100 µW
- Joined
- Oct 12, 2016
- Messages
- 8
Hello everyone! Glenn from Sweden here
.
(Yet another noob here having some questions regarding tuning an e-bike)
I have a Viarelli Fat Bike with the following components: 36v, 13ah, li-ion, 250w small hub motor, PAS assisted and a LCD computer. Everything preinstalled. (controller 12A, 6 fets labelled "LVBELAN" as manufacturer http://motorsweden.se/reservdelar/fordon/elcykel/viarelli-fatbike36/controller-fatbike36)
The bike is legally restricted to 25 km/h and like many others I would like to go a bit faster. Now, I don’t want a speed demon but I would like it to go in the 35-40 km/h range with PAS assist only. I can set the speed to 60 km/h on the LCD computer but that wont make the bike to go any faster. I have also tried to set the wheel size to both bigger and smaller but that doesn’t help either.
1. I understand that some controllers have a wire loop that, if you disconnect it, will increase speed somewhat. My controller doesn’t have a loop which led me to think that somewhere on the circuit board there is fixed loop although the cables don’t stick out. Any thoughts on that? On the underside of the circuit board there is a brownish capacitor (I think) that looks kinda out of place that I haven't seen on other controller boards. Is this some kind of restrictor? It looks something like this if I remember correctly: http://kaizerpowerelectronics.dk/wp-content/uploads/47nK-250-480x480.jpg (the numbers aside)
2. I’m really tossing and turning weather to modify the controller I have or to buy another one. I have read A LOT regarding tuning an e-bike the last couple of days but I am not getting any wiser. From my understanding the only way to increase speed is to up the voltage but I don’t want to buy a bigger battery and arouse the police. I want it to be a ”sleeper”. But if you can disconnect a cable to make a motor to spin faster then what happens inside the controller?
3. I know about the shunt mod and add solder to the traces to increase amp, but I am unsure to what swapping out the fets really does. Won’t that increase the voltage? (the caps are rated 50v by the way)
4. I have seen pictures of the hall sensors inside the motor and some sits pretty close together. Would separating them fool the controller into thinking that the speed is lower than it really is?
5. I don’t plan to use the bike to go offroad, but I will use it during the winter so I guess the cooling problem is solved. In the summer I will use the bike on plain straight roads without much hills.
6. Would I benefit from buying a controller with the following specs: 36v, 350w, 22A (http://www.ebay.com/itm/161826966209?_trksid=p2055119.m1438.l2649&ssPageName=STRK:MEBIDX:IT), OR should I modify the controller I already have? I know how to solder and how to tinker, but I'm not a electric savvy guy.
7. If you wish I could take some pictures of the controller, but it is situated inside the frame in the small compartment between the battery and the paddle crank housing and it's VERY cramped.
8. Also, if anyone have a manual for this LCD computer I would be a happy camper! http://motorsweden.se/reservdelar/fordon/elcykel/viarelli-fatbike36/display-lcd-36v-fatbike36 The company where I bought the bike can't get hold of any manual and it has a ton of adjustable parameters that I don't have a clue what it is for.
9. Sorry about the lengthy post
(Yet another noob here having some questions regarding tuning an e-bike)
I have a Viarelli Fat Bike with the following components: 36v, 13ah, li-ion, 250w small hub motor, PAS assisted and a LCD computer. Everything preinstalled. (controller 12A, 6 fets labelled "LVBELAN" as manufacturer http://motorsweden.se/reservdelar/fordon/elcykel/viarelli-fatbike36/controller-fatbike36)
The bike is legally restricted to 25 km/h and like many others I would like to go a bit faster. Now, I don’t want a speed demon but I would like it to go in the 35-40 km/h range with PAS assist only. I can set the speed to 60 km/h on the LCD computer but that wont make the bike to go any faster. I have also tried to set the wheel size to both bigger and smaller but that doesn’t help either.
1. I understand that some controllers have a wire loop that, if you disconnect it, will increase speed somewhat. My controller doesn’t have a loop which led me to think that somewhere on the circuit board there is fixed loop although the cables don’t stick out. Any thoughts on that? On the underside of the circuit board there is a brownish capacitor (I think) that looks kinda out of place that I haven't seen on other controller boards. Is this some kind of restrictor? It looks something like this if I remember correctly: http://kaizerpowerelectronics.dk/wp-content/uploads/47nK-250-480x480.jpg (the numbers aside)
2. I’m really tossing and turning weather to modify the controller I have or to buy another one. I have read A LOT regarding tuning an e-bike the last couple of days but I am not getting any wiser. From my understanding the only way to increase speed is to up the voltage but I don’t want to buy a bigger battery and arouse the police. I want it to be a ”sleeper”. But if you can disconnect a cable to make a motor to spin faster then what happens inside the controller?
3. I know about the shunt mod and add solder to the traces to increase amp, but I am unsure to what swapping out the fets really does. Won’t that increase the voltage? (the caps are rated 50v by the way)
4. I have seen pictures of the hall sensors inside the motor and some sits pretty close together. Would separating them fool the controller into thinking that the speed is lower than it really is?
5. I don’t plan to use the bike to go offroad, but I will use it during the winter so I guess the cooling problem is solved. In the summer I will use the bike on plain straight roads without much hills.
6. Would I benefit from buying a controller with the following specs: 36v, 350w, 22A (http://www.ebay.com/itm/161826966209?_trksid=p2055119.m1438.l2649&ssPageName=STRK:MEBIDX:IT), OR should I modify the controller I already have? I know how to solder and how to tinker, but I'm not a electric savvy guy.
7. If you wish I could take some pictures of the controller, but it is situated inside the frame in the small compartment between the battery and the paddle crank housing and it's VERY cramped.
8. Also, if anyone have a manual for this LCD computer I would be a happy camper! http://motorsweden.se/reservdelar/fordon/elcykel/viarelli-fatbike36/display-lcd-36v-fatbike36 The company where I bought the bike can't get hold of any manual and it has a ton of adjustable parameters that I don't have a clue what it is for.
9. Sorry about the lengthy post