... ESC ... shows ... just ... Don't you have an optical tach on your Eagle Tree? I tired hooking up just the data logger and saw only about 30ma. I suspect...
... but ... Thanks Kit. Now I know more about how to operate the ESC. Have success to report at last. Watching the voltage at the ESC batt terminals...
... ............Reading the plot. Maybe I better get in touch with them and find out what its supposed to be. They have a new version with two Rpm inputs. i...
... two. ... The V3 can take a second rpm input in the throttle input terminals with a modification specdified in the manual. The brushless motor sensor ...
... ...... Do you have the Rpm pick up? I'm curious to find out if the KVA came out where you wanted it. You will be running 4 cells? ... think ... ...
... the ... KVA ... the ... see ... I don't have a the rpm pickup and would like to know the actual speed as well. Have been trying to measure with scope,...
I got the brushless rpm sensor already. Did some quick testing and have saved the file. How do I go about sending the graph? It was running 4230rpm no-load...
... ......Click on files. Then click on add a file. A window appears where it will ask for where your saving the file you want to post. You need to name it. ...
... I couldn't find a way to file or transmit the graph. The FRD file is now in the Files section. My ESC has programmable low-voltage cutoff, LVC. It has...
... ......What you need to do is after you see the plot by using the Eagel Tree program you need to save it as a Jpeg file. None of the ULEA folks can read the...
Here's a recent paper by Andreas Fuchs some of you may not have seen that might suggest some promising directions... Conrad OHO Human Power eJournal Issue 5...
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the ULEA group. File : /4020-12Y...
ULEA@yahoogroups.com
Jun 8, 2008 7:32 am
504
From what I can see, this paper proposes that one should pedal a generator to charge batteries and to power the propulsion motor, for various technical...
... Fuchs ... I was at the 4th Velomobile seminar in 1999 at Interlaken Switzerland (gave an assist paper). I got to try Andreas early SH trike. It was strange...
Elden, I looked at your plot. I see only 12 watts to run the motor no load at 4200 rpm. My motor requires 30 watts at 7500 rpm. Hmmmmmmm, that is very...
... There is a lot of noise in the data logger plots. I assume the ESC is causing significant current variations. I have tried various settings for the ESC...
... It seems very unlikely the efficiency of a serial system can approach that of a chain drive. There may be applications that benefit from the flexibility a...
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the ULEA group. File : /pedal assist...
ULEA@yahoogroups.com
Jun 12, 2008 2:03 am
511
... is ... .....Try using say 4 data points per second and see what that looks like. That should filter some of tat noise. ... ......We can get sort of inthe...
... the ... idlers ... hydrostatic ... .....I have ben corresponding with him and he isn't so worried about efficiency. He is more interested in other...
You are forgetting one very significant part of the drivetrain - the HUMAN. Yes, the chain is wonderfully efficient but starting from a dead stop as a human...
Warning: Top posting Short cranks got my attention: How is the best way to derive the best "short crank" length? Is it based on leg length? Femur? Thigh? ...
... ESC ... That would mask the noise so it would be easier to determine the average. I was hoping to reduce the noise at its source. I'm going to try a...
... the HUMAN. Yes, the chain is wonderfully efficient but starting from a dead stop as a human is not. Loads of force - minimal rpm = poor efficiency....
Hi all, After I was left in the dust on my Tour Easy by my 13 year older sister on a BionX-equipped Dutch bike, I've been studying a bit about e-assists :-)....
Fortunately we are talking about the case where we are moving. I agree - at a dead stop both are zero percent efficient. Chris P> To: ULEA@yahoogroups.com>...
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