Main battery volts (not fully charged)=
http://i16.photobucket.com/albums/b18/FELIX-THE-CAT/E-Bike/PHOT0004.jpg
3 big wires going to the motor=
1st at full throttle
http://i16.photobucket.com/albums/b18/FELIX-THE-CAT/E-Bike/PHOT0007.jpg
2nd at full throttle
http://i16.photobucket.com/albums/b18/FELIX-THE-CAT/E-Bike/PHOT0008.jpg
3rd at full throttle
http://i16.photobucket.com/albums/b18/FELIX-THE-CAT/E-Bike/PHOT0009.jpg
this bike only does about 25-28kmh and i need it to go faster,there is a connector and if you plug in the other loose connection,it turns slower,so it's in turbo mode as it is now
Any help would be appreciated,as this bike should be going faster than it is??????????
The BikeForums Team
-adv-
This is an archived thread, you can find the full version of this thread, with images, links and more content here.
this bike only does about 25-28kmh and i need it to go faster,there is a connector and if you plug in the other loose connection,it turns slower,so it's in turbo mode as it is now
Any help would be appreciated,as this bike should be going faster than it is??????????
All voltage readings are normal.
Does it has an speedometer?
If yes. Put the ebike on its stand with the drive-wheel off ground.
Turn FULL throttle, read the no-load top-speed.
geebee
The speedo's on these bike tend to be slightly inaccurate, errors being in the range of "whatever it says is wrong".
Try and fit a normal bike speedo at least for testing.
(Ronin)
Speedo is way off and is driven by the front wheel..i had a buddy in a car pace me,he says around 28 is my top speed..
And how is 26 volts going to the motor normal? should i not have 48 going to the motor?
According to the simulator on ebikes.ca..my bike is running as if it had a 26 volt battery and is performing like most 24v bikes do
with 48 volt pack=
http://i16.photobucket.com/albums/b18/FELIX-THE-CAT/graph1.jpg
with 26.1 volt pack=
http://i16.photobucket.com/albums/b18/FELIX-THE-CAT/graph2.jpg
can i not get 48 volts to go to the motor somehow?
do crystallite controllers only put 26v to the motor if you have a 48v battery?
The7
If 48V battery measures 52.1V, then you should get 26.05V for the motor terminal at FULL throttle if there is no speed restriction in your controller.
Getting 25.6 and 25.7V shows there is no speed restriction!
The simulator has already taken these factors into account.
When using 48V battery:
X406 will have a top-speed of 32 km/h for 18" wheel.
X407 will have a top-speed of 28 km/h for 18" wheel.
X408 will have a top-speed of 24 km.h for 18" wheel.
So your motor is quite similar to one of the above.
Another test if you could.
Does your ebike has an ammeter showing discharging and charging?
If so, ride downhill with FULL throttle. Of course watch for traffic.
Could it reach 35-40km/h?
Turn throttle to idle and no brake.
Note the ammeter and read the charging current if any.
(Ronin)
It sort of has one,the battery indicator works as am ammeter,at load it goes down then on flat it just goes to the top again :( pretty cheap..well now i'm really disappointed with this bike..
I guess the only thing i can do is go to 60 or 72v with a new controller and some batteries to get some speed.
Thanks
karma
im buying one tommorow to take apart make my changes if you want we can share.:D
im changing controller,hall sensors in the hub batterys and a few other things
Hey looks like one of the Golden hub motors. Unless this one is much different, but from the feedback on their forums it looks like you'll also have to replace the motor's coil cables with better(silver)/thicker ones if you intend to feed it more amps/volts.
Edit: I mean the cables that go in the motor to feed it juice, not the windings themselves.
karma
yup:) in the end ill end up cooking mine down the road
EbikeHawaii
Ok i'll make a new thread here with loads of pics,if anyone can tell me what to do to get this thing moving at a decent speed i'd appreciate it :)
Main battery volts (not fully charged)=
http://i16.photobucket.com/albums/b18/FELIX-THE-CAT/E-Bike/PHOT0004.jpg
3 big wires going to the motor=
1st at full throttle
http://i16.photobucket.com/albums/b18/FELIX-THE-CAT/E-Bike/PHOT0007.jpg
2nd at full throttle
http://i16.photobucket.com/albums/b18/FELIX-THE-CAT/E-Bike/PHOT0008.jpg
3rd at full throttle
http://i16.photobucket.com/albums/b18/FELIX-THE-CAT/E-Bike/PHOT0009.jpg
this bike only does about 25-28kmh and i need it to go faster,there is a connector and if you plug in the other loose connection,it turns slower,so it's in turbo mode as it is now
Any help would be appreciated,as this bike should be going faster than it is??????????It looks like you have a 24 volt controller and a brushed motor with a turbo switch that bypasses the controller to 48 volts. A brushless motors current would all have to go through the controller for commutation.A turbo can be put in the throttle response by limiting your throttle but you could just smoothly controll your speed and ramp by a twist if you had a nice matching controller for any top voltage you decide is fast enough for you.Just remember that going over 25 mph the wind resistance factors will eat up power a lot faster and your motor might already be out of it's efficiency wattage rating range.=best rated contionus wattage. you might want to get a sevcon 48 volt controller to see how much abuse it will take.They are programable with programable regen for brushed or brushless.
...................
"Pressing the switch bypasses the controller sending 60 volts directly to the motor. It's just like the passing gear you might have on a gas car, and you can zoom up to perhaps 40 miles per hour."
geebee
EbikeHawaii, you did actually read the provided info and looked at the pictures?
(Ronin)
i may add a 12v 14ah replacement powerwheels battery to the main pack,looks like i have the room if i mod the under-seat compartment.
Then i'd imagine i'd need a new controller
karma
sounds good. it depends on the controller what the voltage is inside for the fets and caps. good thing would be to crack it open have a look before powering it up.
im thinking on adding a turbo button so when i need the extra speed its there but by default runs at its rated speed. somthing to do with bypassing the shunt in the controller. let me blow mine up first :)
The7
im buying one tommorow to take apart make my changes if you want we can share.:D
im changing controller,hall sensors in the hub batterys and a few other things
just got the call its in the back of the van still boxed should have it here by 5pm or 6pm
its my weekend off so im sure ill come up with something workable