Search found 49 matches

by 4sken
Oct 05 2016 5:57pm
Forum: E-Bike General Discussion
Topic: Throttle response/lag problems
Replies: 7
Views: 1467

Re: Throttle response/lag problems

Sort of, I don't get torque when I want it during turns. On my gas machines the torque kicks in much much much faster than the electric setup, so I can modulate the throttle and change where the weight is on the bike. No such thing on the ebike. I'm kind of interested in reprogramming the chip. The ...
by 4sken
Oct 05 2016 1:14am
Forum: E-Bike General Discussion
Topic: Throttle response/lag problems
Replies: 7
Views: 1467

Re: Throttle response/lag problems

That perfectly explains it. There's always a lag, and it changes depending on speed.

Perhaps the ramp speed can be changed; A diode or a resistor, etc?

It's more than likely baked/flashed into an IC though.
by 4sken
Oct 04 2016 8:10pm
Forum: E-Bike General Discussion
Topic: Throttle response/lag problems
Replies: 7
Views: 1467

Re: Throttle response/lag problems

Yup, batteries are LiPo. Max output is 17kW so that's not a problem. I did beef the traces with extra copper wire and plenty of solder. The problem is the controller was like this before the shunt mod; it kicks on slowly and responds slowly to throttle. I think it's intentional, to keep it from feel...
by 4sken
Oct 03 2016 4:28pm
Forum: E-Bike General Discussion
Topic: Throttle response/lag problems
Replies: 7
Views: 1467

Throttle response/lag problems

I've got a 1000w 16FET controller shunt modded to 2.5kw https://www.aliexpress.com/item/48V-800-1000W-35Amax-Brushless-DC-Motor-Controller-Ebike-Controller-KT-LCD3-Display-One-Set/32616948234.html?spm=2114.01010208.3.20.93kSGb&ws_ab_test=searchweb0_0,searchweb201602_2_10056_10065_10055_10068_10054_1...
by 4sken
Mar 18 2016 4:24pm
Forum: E-Bike Technical
Topic: bigger hub motor wires-Ground one phase to frame?
Replies: 7
Views: 542

Re: bigger hub motor wires-Ground one phase to frame?

I don't understand how connecting one phase to the axle would cause a short condition... Path of least resistance would be from the bike frame, cross the axle onto the phase. Where would that short to?
by 4sken
Mar 16 2016 5:31pm
Forum: E-Bike Technical
Topic: bigger hub motor wires-Ground one phase to frame?
Replies: 7
Views: 542

bigger hub motor wires-Ground one phase to frame?

I haven't seen this done much at all or even talked about (Might be a lack of searching) But wouldn't it be possible to ground out an entire phase to the bike frame, letting you have bigger phase wires into the axle?
by 4sken
Feb 17 2016 8:05pm
Forum: E-Bike Technical
Topic: Custom Dropouts and torq arm
Replies: 11
Views: 1075

Re: Custom Dropouts and torq arm

hope you told him to take a long walk on a short pier. I could get it done at a machine shop for $20-25 just a 5min walk from my house, and that's proper clamping type dropout plates. For $300-400 plus shipping you can get a complete dual suspension ebike frame with large encloased battery bay.. Or...
by 4sken
Feb 16 2016 6:40am
Forum: E-Bike General Discussion
Topic: KT-3 LCD Not showing Watt draw
Replies: 4
Views: 604

Re: KT-3 LCD Not showing Watt draw

There are two different protocols supported with the KT-LCD3 display. Some KT controllers do not support the protocol which show Watts (nor temperature, I believe). Your new controller just might be the wrong type. That's probably it :( Well, looks like I'm getting a sine regen controller then... w...
by 4sken
Feb 14 2016 11:43am
Forum: E-Bike General Discussion
Topic: KT-3 LCD Not showing Watt draw
Replies: 4
Views: 604

Re: KT-3 LCD Not showing Watt draw

That's the thing; same brand controller. Same manufacturer. Are you saying the display might be calibrated for each controller? Hmm, that's pretty interesting. Would you know how to calibrate it?
IMO if it were miscalibrated it would just show an incorrect value instead of nothing.
by 4sken
Feb 13 2016 11:28pm
Forum: E-Bike General Discussion
Topic: KT-3 LCD Not showing Watt draw
Replies: 4
Views: 604

KT-3 LCD Not showing Watt draw

I have a KT-3 LCD (https://www.google.ca/search?q=kt3+lcd&espv=2&biw=1920&bih=955&source=lnms&tbm=isch&sa=X&ved=0ahUKEwivneW7tPbKAhUHmh4KHc_ZBDoQ_AUIBygC#imgrc=XPK_XrCZLNF-5M%3A) That worked fine, until at one point the hall sensors in my motor went. I fixed it after a while and moved everything ove...
by 4sken
Feb 07 2016 12:52am
Forum: E-Bike General Discussion
Topic: All in one Ebike Calculator!
Replies: 19
Views: 4900

Re: All in one Ebike Calculator!

Interesting thing. But why not include maximum range and highest possible speed (I have made a Topic about it)? It's in there- Top theoretical speed is your max speed dependant on voltage and Kv; Type that speed into the input side and you'll see how many watts you'll need. I thought of adding it i...
by 4sken
Jan 31 2016 12:25am
Forum: E-Bike General Discussion
Topic: Is this a good bike choice for a bafang bbs02 conversion?
Replies: 16
Views: 1151

Re: Is this a good bike choice for a bafang bbs02 conversion

If you own a welder in all honesty I'd recommend making your own frame. It's hard to buy a frame for a bike with dimensions required for batteries, the suspension you'll wish you had and the sizing you'll want. It's just 30$ of steel and a 20$ donor bike to take cranks off. I can help you with CAD a...
by 4sken
Jan 30 2016 10:58pm
Forum: E-Bike Technical
Topic: Custom Dropouts and torq arm
Replies: 11
Views: 1075

Re: Custom Dropouts and torq arm

That's straight up goddamn dangerous mate. Close your eyes and imagine it starts bumping loose-next time you twist the throttle the shaft will want to spin counterclockwise. It'll push against the left side of the dropouts towards the front, pushing the back of the shaft against the opposite edge of...
by 4sken
Jan 30 2016 10:18pm
Forum: E-Vehicles General Discussion
Topic: Coast and Burn (Pulse and Glide) Calculator
Replies: 14
Views: 2148

Re: Coast and Burn (Pulse and Glide) Calculator

If you'd like, throw some of the equations at me and i'll stick them in java and build a quick GUI in it (Like https://goo.gl/23d62r) Looks like a pretty neeto setup you've got. If someone had mentioned it to me, i'd call them crazy saying pulse and glide would be more efficient than straight cruisi...
by 4sken
Jan 30 2016 10:14pm
Forum: E-Vehicles General Discussion
Topic: Anyone have front hub accidents even with torque arms?
Replies: 34
Views: 4476

Re: Anyone have front hub accidents even with torque arms?

Your build looks very solid imo, nice thick torque arms and low motor power. For my build I needed to get to and from work and had no other transportation available due to unforseen circumstances so I threw a 1000w front hub on an old (1980's) carbon steel road bike frame using a front wheel on the ...
by 4sken
Jan 30 2016 10:08pm
Forum: E-Bike General Discussion
Topic: All in one Ebike Calculator!
Replies: 19
Views: 4900

Re: All in one Ebike Calculator!

amberwolf wrote:Did you look around at the ones in the ES wiki and the various forum threads about simulators and calculators?
Frankly, no :lol:
by 4sken
Jan 20 2016 8:20pm
Forum: E-Bike General Discussion
Topic: All in one Ebike Calculator!
Replies: 19
Views: 4900

Re: All in one Ebike Calculator!

teklektik wrote:Grin Tech Trip Simulator
Huh, neat. Actually never seen that one. I'll email them to see if it's ok to steal their data and stick it on mine.
by 4sken
Jan 20 2016 6:45pm
Forum: E-Bike General Discussion
Topic: All in one Ebike Calculator!
Replies: 19
Views: 4900

Re: All in one Ebike Calculator!

What does this offer that any of the other EV calculators don't already have ? I've yet to find any EV Calculators. I found some other calculators but those are geared towards finding gear ratios. None of them help you find acceleration, watt draw @ speed or take hills into account AFAIK. Plus even...
by 4sken
Jan 19 2016 6:54pm
Forum: E-Bike General Discussion
Topic: All in one Ebike Calculator!
Replies: 19
Views: 4900

Re: All in one Ebike Calculator!

Sean9002 wrote:See if you can find a more ghetto file host
Hahahah, I'll put the google drive link up, but it's been randomly blocking people because it's a jar file xD 'security issues', If I could make a 20kb trojan i'd be working for DARPA
by 4sken
Jan 18 2016 3:25pm
Forum: E-Bike General Discussion
Topic: All in one Ebike Calculator!
Replies: 19
Views: 4900

Re: All in one Ebike Calculator!

Run it like you would minecraft; you'll need java. Don't extract the .jar, run it using java. You can get it here if you don't have it:
http://www.java.com/en/download/windows-64bit.jsp

Pretty big download-but I'm surprised you wouldn't have it.
by 4sken
Jan 17 2016 12:50pm
Forum: E-Bike General Discussion
Topic: recommend me for a build
Replies: 16
Views: 1228

Re: recommend me for a build

Take a look at my calculator-You'll know exactly what you need. 20kb, it's free and the imgur link has a screenshot. You'll need java tho
http://imgur.com/gallery/1BJ4aTp
by 4sken
Jan 17 2016 12:46pm
Forum: E-Bike General Discussion
Topic: All in one Ebike Calculator!
Replies: 19
Views: 4900

Re: All in one Ebike Calculator!

Where should it be?
by 4sken
Jan 17 2016 12:16am
Forum: E-Bike General Discussion
Topic: All in one Ebike Calculator!
Replies: 19
Views: 4900

All in one Ebike Calculator!

http://i.imgur.com/SyemNxPm.png The official Do-All ebike calculator! What's it for? Here's some of its features: Calculate watts needed to reach a speed, Calculate watts needed to reach a speed up a grade, Calculate the torque and acceleration of your ebike, Calculate the waste heat your motor wil...
by 4sken
Jan 05 2016 10:20pm
Forum: E-Bike General Discussion
Topic: Front Hub Motor on a Carbon Road Fork, with what mods ?
Replies: 65
Views: 5493

Re: Front Hub Motor on a Carbon Road Fork, with what mods ?

Disc brakes don't snap carbon forks because of that bend about 3/4 of the way down the fork-Notice how it bends forwards? So, a hub motor would apply torque in the opposite direction. BUT! if you use a geared motor, it will be spinning backwards (With the gears spinning forwards) and will apply tor...
by 4sken
Jan 02 2016 7:10pm
Forum: E-Bike General Discussion
Topic: Battery care in the cold
Replies: 7
Views: 987

Re: Battery care in the cold

does it damage the battery if i start riding when the battery temp is, lets say -15c? i like to go fishing and my bike is left outside for a long time Open the pack and slap in one of these http://goo.gl/sA811w then add some foam to the outside and tape. 20W is almost no drain compared to a 500Wh p...