Search found 1262 matches

by hjns
Apr 21 2014 3:58pm
Forum: E-Bike Technical
Topic: Help me do the math for working out possible distance
Replies: 5
Views: 461

Re: Help me do the math for working out possible distance

And it all depends on the route you are taking. For example, I would want to get up high as fast as possible, so I would charge the steepest hill at the highest velocity. When carrying 50V 25Ah with power limited to 2.5kW, I take a 7km 10% hill in less than 20 min going uphill. And I have used only ...
by hjns
Apr 21 2014 3:50pm
Forum: E-Bike General Discussion
Topic: How heavy is too heavy?
Replies: 24
Views: 924

Re: How heavy is too heavy?

+1 - ditch the front wheel motor. Just go with Cromotor on the rear, vent it, put a thermistor inside connected to a CAv3, and feed it some 100V 100A Lipo using Methy's or Zombiess controller. Much more fun than any 2WD because you keep the "normal" steering. Just take care when doing jumps, because...
by hjns
Apr 21 2014 1:55pm
Forum: E-Bike Reviews & Testing
Topic: Cycle Analyst V3 preview and first beta release
Replies: 4608
Views: 849748

Re: Cycle Analyst V3 preview and first beta release

I want to connect my Thun torque sensor to my CAv3. However, I am running a 14S Pack from Paul (EM3EV) which gives me 58.8V HoC. What are the tolerances for powering the Thun directly from my CAv3, and should I indeed run the Thun from a separate DC-DC converter (58V-10V)? It sort of depends on wha...
by hjns
Apr 21 2014 3:23am
Forum: E-Bike Reviews & Testing
Topic: Cycle Analyst V3 preview and first beta release
Replies: 4608
Views: 849748

Re: Cycle Analyst V3 preview and first beta release

Hi all,

I want to connect my Thun torque sensor to my CAv3. However, I am running a 14S Pack from Paul (EM3EV) which gives me 58.8V HoC. What are the tolerances for powering the Thun directly from my CAv3, and should I indeed run the Thun from a separate DC-DC converter (58V-10V)?

Thanks!
by hjns
Apr 11 2014 2:07pm
Forum: E-Bike General Discussion
Topic: Best motor for steep city hill low speed climbing?
Replies: 31
Views: 2751

Re: Best motor for steep city hill low speed climbing?

Just some real world experience with a 30% hill and a DD hub last year. It is only a short section of about 800m uphill. I used my Cromotor and a lot of LiPo. I kept my speed high 40-50kmh, much higher than the OP wants. Notice the Temp going up from 56oC to 65oC for this short section. If I would g...
by hjns
Apr 10 2014 10:27am
Forum: E-Bike General Discussion
Topic: E-trail Riding
Replies: 3
Views: 458

Re: E-trail Riding

What topspeed going uphill at what grade are you looking for? What range? For example, only Cromotor/Crown will get you and a heavy bike up a 30% hill at 50kmh >6kW without overburning, and only for a limited distance only (<1km). No kit. If you set your aims a bit lower, you could probably do very ...
by hjns
Apr 07 2014 11:05am
Forum: General Discussion
Topic: And We Have It - The Cure For Cancers
Replies: 11
Views: 1376

Re: And We Have It - The Cure For Cancers

So a cure for some Leukaemia strains was found 3 years ago, it is still not available!! it would seem that money and patents are more important to the pharma companies than peoples lives. I have also worked on another Novartis Drug to treat Chronic Myeloid Leukemia. It is very expensive, but it wor...
by hjns
Apr 07 2014 10:55am
Forum: General Discussion
Topic: And We Have It - The Cure For Cancers
Replies: 11
Views: 1376

Re: And We Have It - The Cure For Cancers

There have been some very significant break thoughs in cancer treatment research, I remember reading this the day it was released back in Feb 2011, their share price multiplied by 11.75x within the week. ---------------------------------------------------------------- Research Update: Positive Leuk...
by hjns
Apr 07 2014 10:45am
Forum: General Discussion
Topic: And We Have It - The Cure For Cancers
Replies: 11
Views: 1376

Re: And We Have It - The Cure For Cancers

Ah I thought it was in vivo . Point well made. My comment about keeping it quiet was based on treating people. No as the quality of life improves birth rates drop. Look at the birthrates in regions of high mortality. It's through the roof. I have mixed feelings about pharmaceutical companies. I don...
by hjns
Apr 07 2014 9:54am
Forum: General Discussion
Topic: And We Have It - The Cure For Cancers
Replies: 11
Views: 1376

Re: And We Have It - The Cure For Cancers

Please, note that no patients have been treated yet. The Nature publication only mentioned that tumor tissue from a patient was transposed to animals. These animals showed a reduction in tumor size.
by hjns
Apr 07 2014 9:47am
Forum: General Discussion
Topic: And We Have It - The Cure For Cancers
Replies: 11
Views: 1376

Re: And We Have It - The Cure For Cancers

They kept this very quiet in order to make sure pharmaceutical companies didn't get any patents. They already have it in tablet form and people are getting cured. I wonder what this will mean for declining populations. With people living much longer I'd imagine the birthrate will drop even more. I ...
by hjns
Apr 01 2014 4:36am
Forum: E-Bike Technical
Topic: Cycle Analyst Android App
Replies: 132
Views: 25687

Re: Cycle Analyst Android App

Hmm, beterschap!!
by hjns
Apr 01 2014 3:38am
Forum: E-Bike Reviews & Testing
Topic: Cycle Analyst V3 preview and first beta release
Replies: 4608
Views: 849748

Re: Cycle Analyst V3 preview and first beta release

wow, Justin is back, and with a superduper update!!!!

Thanks again, Justin et al!
by hjns
Mar 31 2014 7:11am
Forum: E-Bike Reviews & Testing
Topic: Cycle Analyst V3 preview and first beta release
Replies: 4608
Views: 849748

Re: Cycle Analyst V3 preview and first beta release

I think V3 is no longer beta. It works well enough for the full release that it is, and you can buy it online directly from their site. So I don't really understand what your point is.
by hjns
Mar 28 2014 9:54am
Forum: E-Bike Build Threads / Photos & Video
Topic: First explorations CA Logger overlay GoPro 2
Replies: 27
Views: 3860

Re: First explorations CA Logger overlay GoPro 2

I imported the data into Excel. Then added a column on the left with a autoincreasing number for each line. RaceRender reads them in seconds. If your CA logs with 1hz, then these numbers should be full numbers (0, 1,2,3, x). If your CA logs with 5hz, then these numbers should be in part of 1/5th (0,...
by hjns
Mar 27 2014 3:49pm
Forum: E-Bike General Discussion
Topic: Cycle Analyst data logger data..what to do with it
Replies: 11
Views: 747

Re: Cycle Analyst data logger data..what to do with it

Glad it worked out for you. Looking great.
by hjns
Mar 23 2014 4:03pm
Forum: E-Bike Build Threads / Photos & Video
Topic: First explorations CA Logger overlay GoPro 2
Replies: 27
Views: 3860

Re: First explorations CA Logger overlay GoPro 2

Sorry, I had to remove the videos.
by hjns
Mar 23 2014 1:49am
Forum: E-Bike Build Threads / Photos & Video
Topic: First explorations CA Logger overlay GoPro 2
Replies: 27
Views: 3860

Re: First explorations CA Logger overlay GoPro 2

Hey hjns, I was thinking about getting the cycle analogger and racerender. You mention it's elaborate process formatting the data. Can you explain this a little more? I don't want to go this route if it's time consuming. I currently use Dashware and it's pretty simple but it's only gps info. Would ...
by hjns
Mar 19 2014 3:15pm
Forum: E-Bike General Discussion
Topic: First post: presentation and some questions
Replies: 11
Views: 1057

Re: First post: presentation and some questions

Keep it simple. Measure the triangle space inside your intended frame. Then buy a complete package from Paul at EM3EV. A 10T Mac at 36V should have no problems with the hill and still give you the topspeed that you need (around 30kmh). I would agree with Dogman that for your intentions, 10Ah is prob...
by hjns
Mar 19 2014 8:09am
Forum: E-Bike Non-hub Motor Drives
Topic: Complete switch - Cheap crankdrive MTB
Replies: 41
Views: 8137

Re: Complete switch - Cheap crankdrive MTB

Lebowski wrote:power is increasing again :D
Yes, some needs just cannot be denied.

Now at 50V 20A continuously (battery side), with peaks allowed up to 40A. Once 2WD is implemented, this may double.
by hjns
Mar 19 2014 5:43am
Forum: E-Bike Non-hub Motor Drives
Topic: Complete switch - Cheap crankdrive MTB
Replies: 41
Views: 8137

Update

Wetter is getting better. Around 15-20oC here, so it is great. The rear battery rack of my BMSBattery high current 48V 15Ah pack has partially broken. The rack is really a low quality thing from BMSBattery. Not good. The battery itself is just enough to get me from home to work and back again. Too s...
by hjns
Mar 07 2014 5:59am
Forum: E-Bike General Discussion
Topic: Anyone running a MAC 6T motor?
Replies: 10
Views: 1236

Re: Anyone running a MAC 6T motor?

Hmm. Strongly suggest to contact Paul at EM3EV and ask this question.
by hjns
Mar 07 2014 5:38am
Forum: E-Bike General Discussion
Topic: Anyone running a MAC 6T motor?
Replies: 10
Views: 1236

Re: Anyone running a MAC 6T motor?

Yes, I have one. No video. Tech specs: 6T rear Mac (EM3EV) with 7speed freewheel laced by myself in a 36 spokes 24" HALO SAS rim with a 3" Wildlife tire around it. 12FET4115 Lyen controller limited at 50A CAv3 in power throttle mode, two presets: (1) 800W max and (2) 1900W max 50V 15Ah LiIon pack (B...
by hjns
Mar 06 2014 1:29pm
Forum: E-Bike Technical
Topic: Infineon vs Lyen
Replies: 35
Views: 3133

Re: Infineon vs Lyen

I plan to use the 6-fet one with a 250 watt motor; it works fine. I plan to use the 12-fet one to experiment with in various bikes. I currently have it with a 250 watt sensored motor on a 20 inch wheel. That's also working fine. What do I want from my bike? I mostly use it for geocaching. So I'm tr...