Search found 117 matches

by csm
Sep 02 2012 5:04am
Forum: E-Bike Reviews & Testing
Topic: Prodeco Phantom X2
Replies: 105
Views: 28548

Re: Prodeco Phantom X2

Hi Guys, this is Rob Provost, the CEO of Prodeco Technologies. ...If you guys ever wanted, I could set up a Q & A chat session for an hour or so on a week night where anyone can ask me any question about Prodeco Technologies and I will answer them. There will be no topic banned and there is no ques...
by csm
Aug 29 2012 5:53pm
Forum: E-Bike Technical
Topic: Izip conversion from 36v to 60v
Replies: 0
Views: 280

Izip conversion from 36v to 60v

This guys spliced in a 24volt battery in series to the 36volt battery that came with his Currie Izip Zuma to convert it from 36volt to a 60volt power source. He also swapped out the controller. The Izip lithium battery packs have 4 prong connection that is not registering any voltage with volt meter...
by csm
Jun 09 2012 3:40am
Forum: General Discussion
Topic: You think it's a good deal?? cheap A123 18650
Replies: 27
Views: 1427

Re: You think it's a good deal?? cheap A123 18650

I was thinking that 3D printing with ABS plastic may be useful for fabricating custom cell holders. They could be built with space for mounting conducting metal that can also have tech to hold them together by pressure. they could also be designed with multiple vent holes which may be useful as disp...
by csm
Jun 07 2012 9:15pm
Forum: Battery Technology
Topic: New High capacity Li-Ion high cycle count
Replies: 32
Views: 2777

Re: New High capacity Li-Ion high cycle count

Anyone found any pictures and/or video of this "Breakthrough Interconnection System"?
by csm
Jun 07 2012 9:00pm
Forum: Battery Technology
Topic: Thread for new battery breakthrough PR releases
Replies: 1602
Views: 179069

Rechargeable Paper Battery

I wonder how many amp hours could get out a a ream of paper batteries..

by csm
Jun 07 2012 8:26pm
Forum: E-Bike Build Threads / Photos & Video
Topic: Tartaruga Semi Recumbent electric assist (import from Japan)
Replies: 1
Views: 405

Re: Tartaruga Semi Recumbent electric assist (import from Ja

This is a folding version of the Tartaruga, which is made in Japan. I think this would make an interesting platform for an electri hub motor system.. could even do a two wheel matching hub motor system because the wheels are the same size.
by csm
Jun 06 2012 6:39pm
Forum: E-Bike Build Threads / Photos & Video
Topic: Tartaruga Semi Recumbent electric assist (import from Japan)
Replies: 1
Views: 405

Tartaruga Semi Recumbent electric assist (import from Japan)

This is Tartaruga semi recumbent electric assist bicycle imported from Japan.
by csm
May 24 2012 1:00am
Forum: E-Bike General Discussion
Topic: variable regen throttle and controller for ebikes.
Replies: 34
Views: 5027

Re: variable regen throttle and controller for ebikes.

Modded 9C with modded 12 fet infineon and 18S lipo - 5kw peak. "Modded 9C with modded 12 fet infineon"?? I see infineon is probably the controller. what is modded 9C?? "18S lipo - 5kw peak"? 18 cell lithium (LiFePO4??) ? are you running any parallel cells? you using a BMS? I presume 18 cells at 4.1...
by csm
May 23 2012 7:48pm
Forum: Motor Technology
Topic: Wiring diagram/graphics for brushless motor full revolution
Replies: 11
Views: 4781

Re: Wiring diagram/graphics for brushless motor full revolut

yup, each hall has three legs, an input ( positive 5v approx) an earth ( negative) and an output, since each hall has the same input and earth, they can all be connected, they are basically just powering the hall sensors. The output on each sensor is a signal that basically switches on/off as the m...
by csm
May 23 2012 7:34pm
Forum: E-Bike General Discussion
Topic: variable regen throttle and controller for ebikes.
Replies: 34
Views: 5027

Re: variable regen throttle and controller for ebikes.

You can have "2 speed" regen of sorts using throttle off regen, which gives you light braking when you let go of the throttle and it then brakes even harder when you activate the brake switch. I've noticed the throttle off regen cuts out sooner than the regen button though, so it'll pull you up unt...
by csm
May 23 2012 1:21am
Forum: Motor Technology
Topic: Wiring diagram/graphics for brushless motor full revolution
Replies: 11
Views: 4781

Re: Animation of all electricity movement in brushless motor

All About Circuits, Brushless DC motor Electric Motors and Generators It sure is a cool animation . The 5 wires coming form the Halls are Power, Ground, and one for each Sensor. On the animation page, the link to ResMed Motor Tech. leads to a ResMed that does something else. I don't get that part. ...
by csm
May 22 2012 6:25am
Forum: Motor Technology
Topic: Wiring diagram/graphics for brushless motor full revolution
Replies: 11
Views: 4781

Re: Animation of all electricity movement in brushless motor

"Jeremy" and "whatever"... thanks guys! That is the kind of stuff I have been looking for.

(continuing to study how brushless motors work)
by csm
May 22 2012 6:18am
Forum: General Discussion
Topic: universal test device 4 brushless & brushed motor controler
Replies: 7
Views: 1600

Re: universal test device 4 brushless & brushed motor contro

Yeah, that's the one I have. So far, of the couple videos I have seen of this tester being used, it have not shown what it looks like when testing a working controller or throttle. And the people using it seem to not be sure if it is working or that it is connected correctly. I am hoping I will see...
by csm
May 22 2012 6:06am
Forum: Battery Technology
Topic: lithium batteries bad TV reporting
Replies: 12
Views: 1080

Re: lithium batteries reciving bad TV reporting

thanks for posting the video. I was thinking that a way to make them safer is to place the charger and battery on top of something fire prroof, like a a slab of ceramic tile..or on ceramic floor, like many people have in a bathroom or kitchen.. and perhaps someone can build a device that can disconn...
by csm
May 22 2012 1:38am
Forum: Battery Technology
Topic: lithium batteries bad TV reporting
Replies: 12
Views: 1080

Re: lithium batteries reciving bad TV reporting

I will try and get a video of it . Please do post it. I would like to check it out. I would like to know which electric batteries have had this problem. From what I understand, calling a battery lithium is not enough information. And need to know more info about the details of cause of "burnt house...
by csm
May 22 2012 1:29am
Forum: EV Business World
Topic: I'm finally working in the ebike industry.
Replies: 6
Views: 1928

Re: I'm finally working in the ebike industry.

Lock wrote:really, really excited, actually... :D
congratulations.
by csm
May 22 2012 1:21am
Forum: Battery Technology
Topic: New High capacity Li-Ion high cycle count
Replies: 32
Views: 2777

Re: mechanically connecting cells together with pressure

The problem has been that cylindrical cells are hard to electrically connect together. The traditional way to interconnect them is with welded nickel strips. The drawback to this is that the electrical resistance is high , the welds break easily and welding together thousands of cells is very cumbe...
by csm
May 22 2012 1:07am
Forum: Battery Technology
Topic: New High capacity Li-Ion high cycle count
Replies: 32
Views: 2777

Re: mechanically connecting cells together with pressure

flathill wrote:just need to gold plate the battery terminals and we should be all good
That is a brilliant idea! the gold could be re-cycle if needed. Perhaps could be DIY project.
by csm
May 22 2012 12:55am
Forum: EV Business World
Topic: Vaporware and failed EV companies
Replies: 105
Views: 22358

Re: Vaporware and failed EV companies

Sinclair C5 (cost 399 british pounds).

by csm
May 22 2012 12:42am
Forum: General Discussion
Topic: having an electric bike is like being an alien
Replies: 16
Views: 1361

Re: having an electric bike is like being an alien

They accuse me of cheating too!! But I was here way before them! I built the trails too. I built one technical trail 4 other guys. I built another trail along with the bike club we had a long time ago. And I made all the signs for each trailhead when I was 15 and all the signs are still there. Chea...
by csm
May 21 2012 10:51pm
Forum: General Discussion
Topic: having an electric bike is like being an alien
Replies: 16
Views: 1361

Re: having an electric bike is like being an alien

IThey had primer, ratty electrical tape.....just seriously ugly, and I figured that it was possibly attributed to three reasons: 1. They are core, and they value utility and nothing else. 2. They want to look core, because they want street cred. 3. They don't want their bikes ripped off, so they ug...
by csm
May 21 2012 8:38pm
Forum: E-Bike General Discussion
Topic: variable regen throttle and controller for ebikes.
Replies: 34
Views: 5027

Re: variable regen throttle and controller for ebikes.

edamame wrote:The reverse function of my Losi Mini T is variable speed.
Image

Does the remote use a hall effect sensor for the forward and another for the reverse? And then another hall effect senser on the car controller throttle forward and another hall effect sensor for reverse?
by csm
May 21 2012 6:04pm
Forum: Motor Technology
Topic: Wiring diagram/graphics for brushless motor full revolution
Replies: 11
Views: 4781

Re: Wiring diagram/graphics for brushless motor full revolut

I think i am making progress in understanding the brushless motor technology. It seems that there are 6 steps that current flows through the wires untill it loops back and starts again through the 6 steps.

Image
by csm
May 21 2012 5:51pm
Forum: Motor Technology
Topic: Wiring diagram/graphics for brushless motor full revolution
Replies: 11
Views: 4781

Re: Wiring diagram/graphics for brushless motor full revolut

on this page there is a graphic of how the brushless 3 phase motor is moving electricity through an entire loop. It appears that there are 6 different states that it cycles through until it begins to cycle through them again. http://diandeng.myweb.hinet.net/index_motor_3phase_6step.htm I am not clea...