Search found 107 matches

by _GonZo_
Mar 22 2021 5:44am
Forum: EScooter/EMotorcycle Build Threads
Topic: Conversion of a Bultaco Sherpa
Replies: 53
Views: 2240

Re: Conversion of a Bultaco Sherpa

Do you think I can test the settings of the potentiometer on my desk, by connecting the dark grey wire and plus and minus? And then running motor/controller/throttle. If I watch the motor rotation speed by help of the kelly software, and calculate the secondary transmission ratio? Yes, that is the ...
by _GonZo_
Mar 19 2021 7:16am
Forum: EScooter/EMotorcycle Build Threads
Topic: Conversion of a Bultaco Sherpa
Replies: 53
Views: 2240

Re: Conversion of a Bultaco Sherpa

Meanwhile I have opened it and took some photos: Display-inside-01.jpg Display-inside-14.jpg I tried to make everything readable by using different lighting, and by bending the cables to different sides. The only thing which looks (to me) like "set-able" is this small screw thingy in the ...
by _GonZo_
Mar 19 2021 6:53am
Forum: EScooter/EMotorcycle Build Threads
Topic: Conversion of a Bultaco Sherpa
Replies: 53
Views: 2240

Re: Conversion of a Bultaco Sherpa

I am searching for maximum power out of my Kelly KLS 72701, and there are many things you can change, but I cannot get maximum power when I want it. Here are the Throttle or current ramps, and my selection on the chart is 80.( circled in red in the Screen 1a ) This is a profesional controller that ...
by _GonZo_
Mar 16 2021 4:33am
Forum: General Discussion
Topic: Will technology make us smarter?
Replies: 18
Views: 500

Re: Will technology make us smarter?

Just a funny thing i seen:
"I don't believe in science"
Wrote in internet...
by _GonZo_
Mar 15 2021 4:34am
Forum: Motor Technology
Topic: KellyController Setup Video Tutorial
Replies: 8
Views: 561

Re: KellyController Setup Video Tutorial

Thank you Guiga for the compliment.
by _GonZo_
Mar 10 2021 5:13am
Forum: Battery Technology
Topic: A question for any battery builders, DIY 72v 48ah 20S16P build.
Replies: 10
Views: 397

Re: A question for any battery builders, DIY 72v 48ah 20S16P build.

Don't get me wrong, I am trying to help: But why are you using this cells (I suppose 18650) for this pack? I know that Teslamotors does that. But now it is not the best, cheapest or easiest way to create a battery pack this size. You have plenty of different larger prismatic cells or larger cylindri...
by _GonZo_
Mar 09 2021 6:18am
Forum: EScooter/EMotorcycle Build Threads
Topic: Conversion of a Bultaco Sherpa
Replies: 53
Views: 2240

Re: Conversion of a Bultaco Sherpa

Elektrosherpa wrote:
Mar 08 2021 7:54am
In the manual, I don't find any information about the 3-way-switch they sent me...
You have to find out with a multimeter how the switch is acting (use the continuity function or resistors function in the multimeter), before connecting it.
by _GonZo_
Mar 08 2021 5:32am
Forum: EBike General Discussion
Topic: What is the point of a 3T, 4T, 5T winding if torque per amp is the same?
Replies: 31
Views: 1512

Re: What is the point of a 3T, 4T, 5T winding if torque per amp is the same?

I think what Justin was trying to get all understand is; that different KV (Different winding turns) of the same motor model are going to develop almost the same power, and torque. The basic difference is speed. So don't choose strange components for your build, if you want to go 45Km/h get a motor ...
by _GonZo_
Mar 08 2021 4:55am
Forum: EScooter/EMotorcycle Build Threads
Topic: Conversion of a Bultaco Sherpa
Replies: 53
Views: 2240

Re: Conversion of a Bultaco Sherpa

So I could just connect cable 12 and 22 to this 3 way switch, make the appropriate settings in the controller software, and it will work? Yes it will work. You will have to activate it in the software as well. The is a field were you can define it: "Three speed": This item is used to enab...
by _GonZo_
Mar 04 2021 6:00am
Forum: EScooter/EMotorcycle Build Threads
Topic: Conversion of a Bultaco Sherpa
Replies: 53
Views: 2240

Re: Conversion of a Bultaco Sherpa

Sure I will not use it as a reverse switch-I find the position at the handelbar too dangerous for such a function-I think it could happen here that I switch to reverse by mistake ... Do not worry about it, it has safety systems that will not reverse the motor until it has not stoped and throttle pa...
by _GonZo_
Mar 01 2021 6:20am
Forum: EScooter/EMotorcycle Build Threads
Topic: Conversion of a Bultaco Sherpa
Replies: 53
Views: 2240

Re: Conversion of a Bultaco Sherpa

First of all: I made a mistake when i posted the link to the controller manual this is the correct one: https://kellycontroller.com/wp-content/uploads/kls-nm/KellyKLS-N-UserManualV2.7.pdf (I thought you were using a KSL instead of a KLS, little difference in the name, but big in the what are they......
by _GonZo_
Feb 28 2021 6:10am
Forum: EScooter/EMotorcycle Build Threads
Topic: Conversion of a Bultaco Sherpa
Replies: 53
Views: 2240

Re: Conversion of a Bultaco Sherpa

But selling stuff (like this display) without providing any documentation is poor, in my opinion. They will probably do not have a manual or they may not have it in english. That is one of the reasons why Chinese products can be cheaper, not because their quality or engineering is bad. They save ti...
by _GonZo_
Feb 28 2021 6:03am
Forum: EScooter/EMotorcycle Build Threads
Topic: Conversion of a Bultaco Sherpa
Replies: 53
Views: 2240

Re: Conversion of a Bultaco Sherpa

How shall I know which of the 6 cables of the display serves which purpose? You need them to tell you what is what in that, else there is many chances you destroy it during process. Probably you got this connections: - Ground - Positive (Here it will read if the vehicle is on/off and battery state)...
by _GonZo_
Feb 25 2021 6:25am
Forum: EScooter/EMotorcycle Build Threads
Topic: Conversion of a Bultaco Sherpa
Replies: 53
Views: 2240

Re: Conversion of a Bultaco Sherpa

Here is the manual for your controller:
https://kellycontroller.com/wp-content/ ... alV2.7.pdf

EDITED, link was incorrect.
by _GonZo_
Feb 23 2021 5:15am
Forum: EScooter/EMotorcycle Build Threads
Topic: Conversion of a Bultaco Sherpa
Replies: 53
Views: 2240

Re: Conversion of a Bultaco Sherpa

And in order to help you to setup the controller here you have link to some videos I made about it with Kelly-KLS controllers:
This part one, and there is 3 parts:
https://youtu.be/A_si4IfU5so
by _GonZo_
Feb 15 2021 8:17am
Forum: Motor Technology
Topic: KT controller not switching between 36 and 48v batteries
Replies: 4
Views: 298

Re: KT controller not switching between 36 and 48v batteries

The "automatic" detection of battery voltage of KT controllers does not work really well. I had always the issue that connecting a 48V battery when it is almost empty, the controller detected as a 36V battery... I would prefer it to be selectable more than automatic... For what you say I t...
by _GonZo_
Feb 12 2021 5:30am
Forum: EBike General Discussion
Topic: Fully 3D Printed DIY electric car
Replies: 52
Views: 2483

Re: Fully 3D Printed DIY electric car

It seems pretty reasonable. Not sure what controls your relay (is it for flashing?), or how the brake signal works. Thank you Addy. Yes the "relay" (maybe that is not the proper name) is the device that makes to intermittently flash the turning lights. I just discovered an error in the sc...
by _GonZo_
Feb 09 2021 5:30am
Forum: EBike General Discussion
Topic: Fully 3D Printed DIY electric car
Replies: 52
Views: 2483

Re: Fully 3D Printed DIY electric car

OK, here are the schematics for the lights and such of the vehicle.
Please, can you have a look to it and let me know if it looks OK to you?
by _GonZo_
Feb 09 2021 5:24am
Forum: EScooter/EMotorcycle Build Threads
Topic: Conversion of a Bultaco Sherpa
Replies: 53
Views: 2240

Re: Conversion of a Bultaco Sherpa

Cool project and nice motorbike.
Following with interest your project.
One detail that I noticed, the bike has a rear rack (I suppose aftermarket), in order to improve its looks, if I were you I will get rid of it.
by _GonZo_
Feb 04 2021 5:17am
Forum: Motor Technology
Topic: Kelly KBS-E controller Variable Brake Regen setup issues
Replies: 14
Views: 395

Re: Kelly KBS-E controller Variable Brake Regen setup issues

[/quote] Progressive regenerative braking. I would like to vary the levels with the brake lever [/quote] Then the first thing you need is a brake lever with a pot or a hall sensor in order to get 0V to 5V signal for the controller. This lever needs to have a switch as well, because this controller n...
by _GonZo_
Feb 03 2021 5:39am
Forum: EBike General Discussion
Topic: Fully 3D Printed DIY electric car
Replies: 52
Views: 2483

Re: Fully 3D Printed DIY electric car

Here is a picture of one of the parts in a section cut, so you can see how they are inside. As you can see the parts are almost hollow (See picture) with an internal gyroid estructure. The walls of the parts varies from around 1.2mm to 3.9mm and the infill from 9% to 15% of the volume, depending on ...
by _GonZo_
Feb 03 2021 5:30am
Forum: Motor Technology
Topic: Kelly KBS-E controller Variable Brake Regen setup issues
Replies: 14
Views: 395

Re: Kelly KBS-E controller Variable Brake Regen setup issues

[/quote] Ultimately, my goal is that i can let go throttle and the bike would roll without regen, or with as little regen as possible, and then pull the brake lever to get variable regen effect like a brake, without the need to use of any physical switches. would this be possible with this controlle...
by _GonZo_
Feb 02 2021 2:42pm
Forum: Motor Technology
Topic: Kelly KBS-E controller Variable Brake Regen setup issues
Replies: 14
Views: 395

Re: Kelly KBS-E controller Variable Brake Regen setup issues

but my throttle stops working after i connect pin 13 to ground .. Obviously when you brake the motor should stop working :D Does this mean I have to connect the throttle switch (pin 15) to ground (pin 20) too? (thereby turning on the throttle switch) That is the "dead man" switch that you...
by _GonZo_
Feb 02 2021 5:38am
Forum: Motor Technology
Topic: Kelly KBS-E controller Variable Brake Regen setup issues
Replies: 14
Views: 395

Re: Kelly KBS-E controller Variable Brake Regen setup issues

I tried connecting pin 13 to 20 via a connecting wire from the throttle -(black wire) to a pin that connects to pin 13 ,thereby closing the loop as if brake switch is turned on, and now throttle doesnt work either. That is correct and what a switch brake should do, when you brake (activate the swit...
by _GonZo_
Feb 01 2021 1:50pm
Forum: Motor Technology
Topic: Kelly KBS-E controller Variable Brake Regen setup issues
Replies: 14
Views: 395

Re: Kelly KBS-E controller Variable Brake Regen setup issues

Like TommyCat says you need a switch that activates the brake. But not pin 3 :warn:
The no. 13 pin has to get shorted to ground (pin 20) to enable regenerative braking with this switch.

And you are right on newer versions it is not need, but KBS ones are old models. :(