Search found 169 matches

by mi7d1
Jun 22 2008 5:34pm
Forum: E-Bike Technical
Topic: Crystalyte trouble shooting help requested
Replies: 45
Views: 2659

Re: Crystalyte trouble shooting help requested

Very interesting about the loose stator. When we did the axle swap it did have splines on the axle. I'm going to pull the tail fairing off now and have a look. Will follow up afterwards. Take a look inside. Another possibility in your case is the stator may have developed a little looseness between ...
by mi7d1
Jun 22 2008 10:41am
Forum: E-Bike Technical
Topic: Crystalyte trouble shooting help requested
Replies: 45
Views: 2659

Re: Crystalyte trouble shooting help requested

Assuming your hall signal readings toggle back and forth from zero to 14v, that would indicate they are working properly. The reading was like a .08 to 14v At this point, I agree with Knoxie that it could be something mechanical. If a bearing wore down enough to allow contact between the magnets an...
by mi7d1
Jun 22 2008 10:36am
Forum: E-Bike Technical
Topic: Crystalyte trouble shooting help requested
Replies: 45
Views: 2659

Re: Crystalyte trouble shooting help requested

Please read again my edited post concerning "growling" and "STALL PROTECTION". Would the "growling" noise relate to the nylon gears? No gears. The Crystalyte is a direct drive motor. There is one STALL PROTECTION feature in the old C-controller: If the rotor is not rotating for a couple of seconds ...
by mi7d1
Jun 22 2008 9:49am
Forum: E-Bike Technical
Topic: Crystalyte trouble shooting help requested
Replies: 45
Views: 2659

Re: Crystalyte trouble shooting help requested

The problem remains the same with the new controller. So the fault seems to be relating to the motor windings and/or its connection. Would the problem relate to the gear? No, not really. The noise is experienced is at stall speed or when under a load while ridding. Have you measured the resistance ...
by mi7d1
Jun 22 2008 3:37am
Forum: E-Bike Technical
Topic: Crystalyte trouble shooting help requested
Replies: 45
Views: 2659

Re: Crystalyte trouble shooting help requested

Ohm meter was set to 2M Ω on all test. Am going to edit the above post for a final time tonight.
The7 wrote:Are the units in M Ω?
If so, still unable to draw any conclusion.
by mi7d1
Jun 22 2008 12:01am
Forum: E-Bike Technical
Topic: Crystalyte trouble shooting help requested
Replies: 45
Views: 2659

Re: Crystalyte trouble shooting help requested

OK, here's the results for the test for the MOSFETS according to fetcher's post in another thread. To check for shorted FETs, disconnect the phase wires from the controller to the motor. Use an ohmmeter on low range (or autoranging) and measure from each phase wire to each power wire (6 combinations...
by mi7d1
Jun 21 2008 10:07pm
Forum: E-Bike Technical
Topic: Crystalyte trouble shooting help requested
Replies: 45
Views: 2659

Re: Crystalyte trouble shooting help requested

knoxie, fetcher thanks for the input. My controller is the old analog type it is a 36-72v 20a dual speed type. I don't recall anything out of the ordinary happening when the symptoms started the other night. The controller is up in the nose of the velomobile. I didn't hear nor smell anything. We wer...
by mi7d1
Jun 21 2008 12:16pm
Forum: E-Bike Technical
Topic: Crystalyte trouble shooting help requested
Replies: 45
Views: 2659

Re: Crystalyte trouble shooting help requested

You're correct. Yesterday I was short on time and did the test without connecting my multi-meter. Today all that is on my list to do is a computer service repair call. Portland is in the middle of a yearly bike celebration called Pedalpalooza. There are around 200 bike events in two weeks. I attende...
by mi7d1
Jun 21 2008 11:24am
Forum: E-Bike Technical
Topic: Crystalyte trouble shooting help requested
Replies: 45
Views: 2659

Re: Crystalyte trouble shooting help requested

I have no doubt about the hall effect sensors. If one were bad the motor would be jerky, if it were two then it wouldn't run. Wouldn't run if three or the power or negative were bad either. What I don't know is the symtoms of a bad mosfet. I did the roll back test as fetcher describes, and it passed...
by mi7d1
Jun 21 2008 3:00am
Forum: E-Bike Technical
Topic: Crystalyte trouble shooting help requested
Replies: 45
Views: 2659

Re: Crystalyte trouble shooting help requested

Been there already. Read several times also. I've used Google and the search here, still my question isn't answered in that thread. What are the symptoms of a blown fet? Can the motor run with a bad mosfet in the controller? That thread is a great resource if I need to R&R the controller or mod it. ...
by mi7d1
Jun 20 2008 5:05pm
Forum: E-Bike Technical
Topic: Crystalyte trouble shooting help requested
Replies: 45
Views: 2659

Crystalyte trouble shooting help requested

Had a problem last night. While attempting an alternate route which includes several hills, my motor appeared to stop working 11 miles into the ride. When I twisted the throttle I had no or very little forward momentum. The motor sounded like it was turning, I could hear what I call a growling. This...
by mi7d1
Jun 05 2008 5:58pm
Forum: E-Bike General Discussion
Topic: e-Power Challenge 2008 update
Replies: 58
Views: 10381

Re: e-Power Challenge 2008 update

Thought the motto was something along the lines of: "Don't let your a$$ get frosted" :lol: I could just see Tom, the club president, asking me why my wheel is packed in 25lbs of dry ice. The trick would be to not tell anyone. Use the dry ice in the pit area before the race. Then remove it and go out...
by mi7d1
Jun 05 2008 12:18pm
Forum: E-Bike General Discussion
Topic: e-Power Challenge 2008 update
Replies: 58
Views: 10381

Re: e-Power Challenge 2008 update

Hey safe, I like the way you think! I've often wondered about my motor "cooking" while tucked inside that tail fairing. I could just see Tom, the club president, asking me why my wheel is packed in 25lbs of dry ice. With the race being on a fairly flat track and weight not being as important, perhap...
by mi7d1
Jun 04 2008 3:13pm
Forum: E-Bike General Discussion
Topic: e-Power Challenge 2008 update
Replies: 58
Views: 10381

Re: e-Power Challenge 2008 update

I've just got some additional information from Brent B who was ridding the Gold Rush Replica with a fairing and full body sock. He was 20 seconds a lap faster than me. I was 2 seconds faster than the fastest pedal powered streamliner. Brent and I were the two fastest bikes during the whole weekend b...
by mi7d1
Jun 04 2008 2:52pm
Forum: Battery Technology
Topic: New tech lead acid
Replies: 30
Views: 2643

Re: New tech lead acid

My thread for the ePower Challenge is located here: http://endless-sphere.com/forums/viewto ... f=3&t=4426
docnjoj wrote: The PIR is Portland International Raceway where they just held the first electric bike races! Theres a thread somewhere in this forum! Really interesting!
otherDoc
by mi7d1
Jun 02 2008 8:38am
Forum: E-Bike General Discussion
Topic: e-Power Challenge 2008 update
Replies: 58
Views: 10381

Re: e-Power Challenge 2008 update

PM sent <snip> and others have said that I should look for a SLA that is rated at the one hour rate. I'll need to go back and read your post several time and then more pieces of the puzzle will fall into place. An "18 amp-hour" SLA pack that is rated at a one hour rate can hold more energy than my o...
by mi7d1
May 31 2008 5:43pm
Forum: E-Bike General Discussion
Topic: e-Power Challenge 2008 update
Replies: 58
Views: 10381

Re: e-Power Challenge 2008 update

Here's some interesting data of times per lap of the the top 11. Five of them are e-assist. Mitch was running a BionX that stopped providing assist at speeds above 20mph The fastest bike at the event was not a streamliner but a faired and socked Gold Rush Replica. Look how close the times per lap ar...
by mi7d1
May 30 2008 7:35pm
Forum: E-Bike General Discussion
Topic: e-Power Challenge 2008 update
Replies: 58
Views: 10381

Re: e-Power Challenge 2008 update

I've been told it is from his knee again.
Link wrote:That sucks. :(

What for?
by mi7d1
May 30 2008 3:42pm
Forum: E-Bike General Discussion
Topic: e-Power Challenge 2008 update
Replies: 58
Views: 10381

Re: e-Power Challenge 2008 update

Wow! where do I begin... Mitch, so good to see you here. I'm envious of you getting a EcoSpeed system. I've spoken with Brent in the past about putting one in my velo but was concerned about the noise. Now that I've seen his system run I'm not concerned with that anymore. I've only had my WAW up to ...
by mi7d1
May 30 2008 8:48am
Forum: E-Bike General Discussion
Topic: e-Power Challenge 2008 update
Replies: 58
Views: 10381

Re: e-Power Challenge 2008 update

Hey Cal, I'm not quite following you here. Are you saying that if you had a 48v 20Ah Li pack and I had a 48v 20Ah pack of SLA we could have gone the same distance if we were ridding the same bike because we both have the same watt hours? That's not how I understand it. Now I've never run anything ot...
by mi7d1
May 28 2008 9:14am
Forum: E-Bike General Discussion
Topic: e-Power Challenge 2008 update
Replies: 58
Views: 10381

Re: e-Power Challenge 2008 update

I'm more focused on the racing aspect than the efficiency, though they are related. What they really ought to do is use a go-cart track which is a little smaller and tighter which would force the machines to perform better. Then some rider skill will enter into the race. As it is now you can race a...
by mi7d1
May 27 2008 7:07pm
Forum: E-Bike General Discussion
Topic: e-Power Challenge 2008 update
Replies: 58
Views: 10381

Re: e-Power Challenge 2008 update

This is my reason for using a 60t chain ring and an 11-34 freewheel. 36.5mph at 90rpm's 48mph at 120rpm. All I need to do is have a series parallel switch for the batteries. A 406 at 36v and the velo will hardly do 19mph flip into racing mode for "off road racing" and that 406 at 72v be singing doin...
by mi7d1
May 27 2008 7:00pm
Forum: E-Bike General Discussion
Topic: e-Power Challenge 2008 update
Replies: 58
Views: 10381

Re: e-Power Challenge 2008 update

I had to links already but chose the short posting. Here you go. http://www.leg.state.or.us/ors/801.html RE: 801.348 and 801.258 801.348 “Motor assisted scooter.” “Motor assisted scooter” means a vehicle that: (1) Is designed to be operated on the ground with not more than th...
by mi7d1
May 27 2008 6:18pm
Forum: E-Bike General Discussion
Topic: e-Power Challenge 2008 update
Replies: 58
Views: 10381

Re: e-Power Challenge 2008 update

I had never been on the track before. I was expecting some nice sweeping gentle turns perhaps some banked ones. That wasn't the type of track I was on, no sir! Tom, the club president cautioned me saying that in years past some trikes have flipped going around the turns. I never lifted a wheel but m...
by mi7d1
May 27 2008 6:09pm
Forum: E-Bike General Discussion
Topic: e-Power Challenge 2008 update
Replies: 58
Views: 10381

Re: e-Power Challenge 2008 update

Cal, I beg to differ with you but as I understand it: 1.The rider must be eligible for a drivers license. If one has a suspended license or are underage then by law that person can't ride an e-assist bike 2. The electric motor must not have a power output of more than 1000watts. 3. The motor must be...