Search found 1233 matches

by E-HP
Jul 10 2020 12:34am
Forum: E-Bike General Discussion
Topic: Wiring identification - assistance
Replies: 5
Views: 95

Re: Wiring identification - assistance

My guesses:
1 - Battery
2 - Regen enable
3 - 3 speed switch
4 - Programming
5 - PAS
6 - E-brake
7 - Throttle, Power ON/OFF combo
8 - Halls
9 - CA-DP
10 - Motor phase

edit: switched two.
by E-HP
Jul 09 2020 3:13pm
Forum: E-Bike General Discussion
Topic: Two throttles in parallel?
Replies: 8
Views: 119

Re: Two throttles in parallel?

I'm using a hall throttle and a voltage divider pot, in parallel right now Thanks! Does your throttle stay connected when you are using the voltage divider? Is the voltage divider able to overwhelm the hall throttle, or do you switch out the connection of the hall throttle to the signal wire when y...
by E-HP
Jul 09 2020 1:02pm
Forum: E-Bike General Discussion
Topic: Any way to convert a rim brake fork to disc brake?
Replies: 19
Views: 256

Re: Any way to convert a rim brake fork to disc brake?

Check out Turbotd04's thread which has both a successful and failed attempt of adding disc brakes:

viewtopic.php?f=6&t=102534
by E-HP
Jul 09 2020 11:56am
Forum: E-Bike General Discussion
Topic: Two throttles in parallel?
Replies: 8
Views: 119

Re: Two throttles in parallel?

I'm using a hall throttle and a voltage divider pot, in parallel right now because of an issue I'm having with my controller. I use a button to "activate" the voltage divider, which provides a constant throttle output to the controller, and the throttle under normal circumstances. No switching of th...
by E-HP
Jul 09 2020 10:09am
Forum: E-Bike Build Threads / Photos & Video
Topic: 72V Lipo Build 70C with 21S?
Replies: 6
Views: 195

Re: 72V Lipo Build 70C with 21S?

The controller is rated for 36-72V. So if I went with the 21s the max charge would be 4V per cell... seems too low of a charge. Probably better to stay at 20? That doesn't sound like the actual rating, since there are no electronic components that are rated for 72V (caps, FETs). It's more likely th...
by E-HP
Jul 08 2020 10:36pm
Forum: E-Bike Build Threads / Photos & Video
Topic: My econo-e-bike
Replies: 64
Views: 11544

Re: My econo-e-bike

Ran bike for a test ride just now at 22S (around 90 volts), using my 14s8p main battery, plus two sets of 4s lipos in series, just for fun. My "regular" set up that I'll be riding with until my battery upgrade is to run at 18s; 14s from my main battery, and 4 - 4s lipos in parallel, or 20 Ah at 66 V...
by E-HP
Jul 08 2020 8:53pm
Forum: E-Bike Technical
Topic: Can I run 48V battery with 72V controller.
Replies: 3
Views: 109

Re: Can I run 48V battery with 72V controller.

jenyakp wrote:
Jul 08 2020 5:55pm
I have a 72V-40A controller on my bike. Is it safe/sustainable to use a 48V battery?
If the low voltage cutoff is set for a 72V battery, then no.
by E-HP
Jul 07 2020 7:35pm
Forum: E-Bike Technical
Topic: Can I run 48V battery with 72V controller.
Replies: 3
Views: 109

Re: Trying to find a battery for my ebike

You could use Grin's ebike motor simulator to figure out what will work. Here's what it looks like if you have the H3525 motor, assuming no pedaling and flat ground. You can add pedaling watts and the grades you will be riding, after selecting the right motor. https://www.ebikes.ca/tools/simulator.h...
by E-HP
Jul 06 2020 8:23pm
Forum: E-Bike Technical
Topic: e-bike cuts out under hard throttle
Replies: 6
Views: 91

Re: e-bike cuts out under hard throttle

What cells are in the pack and how many parallel groups does the pack have?
by E-HP
Jun 28 2020 6:24pm
Forum: E-Bike Build Threads / Photos & Video
Topic: My econo-e-bike
Replies: 64
Views: 11544

Re: My econo-e-bike

A suggestion: move the emergency cutoff switch to the upper right side of the panel. You moved the Regen switch because it was hard to activate with your right hand while riding, so the same would be true of the shutoff. You can put a light switch where the shutoff is now. Awesome build, BTW. (Alth...
by E-HP
Jun 28 2020 3:28pm
Forum: E-Bike Technical
Topic: Coasting with Cycle Analyst and DD motor
Replies: 4
Views: 98

Re: Coasting with Cycle Analyst and DD motor

You should check the PV settings to see if it is setup for slip regen, or something similar, as that will cause what you are talking about. I think you're right. I can't see the settings due to the Bluetooth issue I'm having, but looking at some of the screenshots of the app, there's a setting call...
by E-HP
Jun 28 2020 10:42am
Forum: E-Bike Technical
Topic: Coasting with Cycle Analyst and DD motor
Replies: 4
Views: 98

Coasting with Cycle Analyst and DD motor

I'm trying to figure out if Cycle Analyst (v3.1) can be programmed so that when I release the throttle, the bike will coast, rather than brake. Before I upgraded my controller, my old KT sine wave unit would coast if I released the throttle, or stopped pedaling while using PAS (direct drive rear hub...
by E-HP
Jun 27 2020 10:26am
Forum: E-Bike Technical
Topic: Powervelocity default settngs?
Replies: 3
Views: 76

Re: Powervelocity default settngs?

Is there a different version (even older ones) of the app you can try? Is there a PC version of the app you can use to connect via USB-serial? Based on the response so far on the PV forum, the module is an older version, that only works on an older version of the Android app. I'm trying to find out...
by E-HP
Jun 25 2020 2:00pm
Forum: E-Bike Technical
Topic: Powervelocity default settngs?
Replies: 3
Views: 76

Powervelocity default settngs?

I have the 7kW Bluetooth Powervelocity controller: http://powervelocity.com/home/48-18f-ebike-sinewavesilent-controller-android-ios-bluetooth-programmable-8kw.html It's currently installed on my bike, running at 52V. I've tried a couple of phones, that will connect via Bluetooth, but the app will no...
by E-HP
Jun 25 2020 1:47pm
Forum: E-Bike Technical
Topic: Rear wheel 8 to 7 speed
Replies: 28
Views: 580

Re: Rear wheel 8 to 7 speed

Even if you end up shifting for some reason, 7 speeds are all you need for a hub motor, since you need to maintain decent speeds to keep your motor from frying itself on climbs anyway, so the really low gears don't get used. <sorry, that was a long sentence> Do you have more on this? I recently wen...
by E-HP
Jun 21 2020 2:34pm
Forum: E-Bike Build Threads / Photos & Video
Topic: My econo-e-bike
Replies: 64
Views: 11544

Re: My econo-e-bike

I finally got motivated to install my new/upgrade controller and Cycle Analyst. One of the legs of my rear rack broke, putting my bike out of commission, so since I had to replace it, I changed out the controller and display. It didn't go as smoothly as I would have wished, since I found out the new...
by E-HP
Jun 17 2020 11:20pm
Forum: E-Bike Technical
Topic: How to get higher top speed from DD motor
Replies: 16
Views: 246

Re: How to get higher top speed from DD motor

I've been playing with the simulator some more and it looks like the top speed for the motor, controller, battery is 28mph. Maybe the field weakening would work for that top speed increase. Field weakening may work for speed, but may also significantly reduce your range, so there's a trade-off. But...
by E-HP
Jun 17 2020 9:44pm
Forum: E-Bike Technical
Topic: e bike using more power then it should
Replies: 16
Views: 311

Re: e bike using more power then it should

If your bike is consuming 660 watts at 30km/h, then about 300 watts would be going toward heat. See how hot the controller and motor are after a ride, which may reveal what components you should be troubleshooting.
by E-HP
Jun 17 2020 8:55am
Forum: E-Bike Technical
Topic: e bike using more power then it should
Replies: 16
Views: 311

Re: e bike using more power then it should

Can you provide the actual before and after ranges? Also, should it be assumed that you are riding with the same settings and speeds, before and after, or has anything changed there?
by E-HP
Jun 15 2020 10:49am
Forum: E-Bike Technical
Topic: Power cuts out
Replies: 21
Views: 509

Re: Power cuts out

What type of connectors are you using between your battery and controller? I had some weird cut out issues that I traced to a bad crimp.
by E-HP
May 15 2020 4:40pm
Forum: E-Bike Technical
Topic: Brake connectors
Replies: 4
Views: 108

Re: Brake connectors

Don't want to take any chances of burning out the new controller, it's functioning fine besides this, I'd rather go without feature than risk that, thanks in advance. Unlikely that you'll burn anything out, since the two wire is just looking for an open or closed contact. I wouldn't automatically a...
by E-HP
May 13 2020 11:01am
Forum: E-Bike Technical
Topic: KT LCD3 does not measure speed
Replies: 3
Views: 101

Re: KT LCD3 does not measure speed

is it a geared hub motor? can you provide a link to the kit?
by E-HP
May 07 2020 12:22pm
Forum: E-Bike Technical
Topic: Current setting on this controller/program
Replies: 18
Views: 518

Re: Current setting on this controller/program

I see what ur saying. Actually i guess I dont need full 80A and 96V plus continuous anyway because usually the amps drop off when getting up in the higher speeds. When I say deceptive, it's really more non-intuitive. They could just be counting the MOSFETs and multiplying against the numbers on the...
by E-HP
May 07 2020 1:17am
Forum: E-Bike Technical
Topic: Current setting on this controller/program
Replies: 18
Views: 518

Re: Current setting on this controller/program

I see what ur saying. Actually i guess I dont need full 80A and 96V plus continuous anyway because usually the amps drop off when getting up in the higher speeds. When I say deceptive, it's really more non-intuitive. They could just be counting the MOSFETs and multiplying against the numbers on the...