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Author Topic: EV Motorcycle Help  (Read 18795 times)

chdfarl

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Re: EV Motorcycle Help
« Reply #75 on: December 02, 2009, 07:16:25 AM »

What if we stop discussing petty sh@t and  Hodrodhoose post some pictures id like to see your bike and hey if your a mechanical student use a transmssion ;) im bustng your balls and im a fan of variable gearing no not cvt's i know you dont have time and im happy that you figured your bike out
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frodus

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Re: EV Motorcycle Help
« Reply #76 on: December 02, 2009, 09:08:40 AM »

Now on the other hand the guy should have some idea what hes doing if he expects a bachelors degree


Agreed.... but now there are more details, its a little more clear, there are more diodes, and not the same kind.... so I'll continue instead with helping him.... I just hate people bashing the distributor.... when often times it can be resolved easily.


Hotrod,

What diodes are they? (give me model numbers and I'll look for you).

Most of the time the topics have come up already.... sorry I was harsh, but 90% of the people that complain on the forums about something are often times the people that don't use google first.... so if you did look, i appologize.

The better book is from carl vogel, I found one at Barnes and Noble.

Get me the diode models and I'll help, i've helped quite a few people design similar systems.
« Last Edit: December 02, 2009, 09:15:35 AM by frodus »
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Travis

HotRodHoose

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Re: EV Motorcycle Help
« Reply #77 on: December 02, 2009, 09:58:03 AM »

When i made that first post I only had some stupid wiring diagram that used pictures to display where the wires ran, but it just show 5 wires going to a controller.  Then I spoke to my professor about it and he showed me the alltrax diagrams, then I found the rest of them.  I made that first post after 9 hours of being at my garage trying to fix this thing because it was suppose to be due this past Monday, but I told my professor I ran into some problems and he was OK with it.  I do have anther question on top of the diodes, which I will get to you tomorrow, sorry if i made anyone mad, including you frodus.  I usually do all of the research first rather then think I know what I am doing, because I always tell my friends that I am the real world Tony Stark (if anyone knows who he is).  After I did my research I found a lot of information so I kind of helped myself, but forgot to erase the post where I my mind was shot after drilling, grinding, and welding all day at the garage and being in a panic over two diodes.  I was wondering how you run the key switch with the alltrax controller because the diagram shows a foot throttle, which obviously I dont have, and it shows a wire splitting off and going to the contactor as well as pin 1 on the controller.  If it runs to the contactor isn't that going to be noisy?  And it shows the wire to the key switch as coming off of the fuse for the 72v, isn't that going to run 72v through the key switch?
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HotRodHoose

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Re: EV Motorcycle Help
« Reply #78 on: December 02, 2009, 10:01:58 AM »

I will post pictures after it finished, its not pretty though, I built a bobber from scratch and I am painting it flat black, the only thing I used from a bike was the front of a yamaha xs650 frame, the forks, wheels and brakes.  I made it a hardtail and make the fenders by hand using a hammer, sand bag, and tree stump.  This was the first bike I have ever built, I usually build hot rods, who would have guessed by my name.  But anyway I want to thank everyone who has helped me out, I could not have done this project without you guys.  And its not done so I may need more help, lol.  Thanks a lot in advance.
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frodus

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Re: EV Motorcycle Help
« Reply #79 on: December 02, 2009, 10:09:42 AM »

No worries, I tend to defend people a little sometimes.... Todd at EMS is my friend and I've heard horror stories about customers, thats all.... I'll help you since they might be a little busy....

link me to the alltrax diagram you're using....

most of the alltrax show 72V going through the key enable, the only way to avoid that is to have a 12V system as well, and use a higher voltage rated DC relay...
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Travis

HotRodHoose

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Re: EV Motorcycle Help
« Reply #80 on: December 02, 2009, 09:11:18 PM »

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frodus

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Re: EV Motorcycle Help
« Reply #81 on: December 03, 2009, 01:21:12 AM »

looks like 2 diodes, do the part numbers not match?

what are the numbers, I bet they're "equal" to whats on the drawings.

As far as that schematic, its got 72V running through the keyswitch. No footswitch is needed, but you could have that hooked to your "engine kill" switch from the original controls so you can disable.
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Travis

HotRodHoose

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Re: EV Motorcycle Help
« Reply #82 on: December 03, 2009, 01:49:26 AM »

Ok, this is what I have:  The 2 diodes I have sent to me from them are 1N5408 and RL207.  I talked to the electrical engineering lab tech and he gave me the 1N4004 in the alltrax diagram, but which one or ones do I use and which one is rated at 300 amp like my controller is?  That point in the diagram above where the two wires split off after the foot switch, can I just run them piggy back off of the connection at the solenoid or not?
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HotRodHoose

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Re: EV Motorcycle Help
« Reply #83 on: December 03, 2009, 01:56:10 AM »

I know this is somewhat off topic but if I wanted to build my own DC motor, whats a good book to read?  I am thinking of future plans.
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frodus

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Re: EV Motorcycle Help
« Reply #84 on: December 03, 2009, 03:59:03 AM »

Quote
Ok, this is what I have:  The 2 diodes I have sent to me from them are 1N5408 and RL207.


the 2A one (RL207) is the one that comes off the pack after the 5A fuse (MR752.... it'l work, the current wouldn't be that much)

the 3A one (1N5408) should be used for the contactor because of its higher forward current peak rating.

Quote
I talked to the electrical engineering lab tech and he gave me the 1N4004 in the alltrax diagram, but which one or ones do I use and which one is rated at 300 amp like my controller is?

you don't need one rated at 300A, nowhere on that diagram is high current flowing into a diode. The high current goes through a fuse and then to the contactor.


Quote
That point in the diagram above where the two wires split off after the foot switch, can I just run them piggy back off of the connection at the solenoid or not?
Thats fine, its a node. Anywhere along that wire between the fuse and contactor is the same thing. Tap off at the contactor if you wish, or after the fuse. Its your choice.
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Travis

HotRodHoose

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Re: EV Motorcycle Help
« Reply #85 on: December 03, 2009, 06:32:16 AM »

Ok, thanks, we will see how it goes this weekend wiring it up and then the first test ride.
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HotRodHoose

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Re: EV Motorcycle Help
« Reply #86 on: December 03, 2009, 10:01:52 AM »

Ok, so I was reading the diagrams from alltrax on the actual motorcycle part of the wiring and it says not to reference anything to ground, but my headlight is self grounding.  Why does it say not to reference anything to a ground on the bike?  It wants everything to go back to the ground wire.  It also shows an extra solenoid in the 12 volt set up which I dont understand why you need that, why cant you just run the dc to dc converter to a fuse box and then run all of your 12 volt accessories from the fuse box?
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frodus

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Re: EV Motorcycle Help
« Reply #87 on: December 03, 2009, 01:07:12 PM »

it means don't ground the chassis to pack negative.

You'd need to get a DC-DC converter (or aux 12V battery) to run the lights if they run off chassis, otherwise.... you create ground loops.

What second solenoid are you talking about? You need to start linking and reference what you're talking about if you want help.
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Travis

HotRodHoose

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Re: EV Motorcycle Help
« Reply #88 on: December 03, 2009, 09:32:21 PM »

http://www.alltraxinc.com/files/Doc100-053-A_DWG-Vehicle-Accessory-wire-dia.pdf
this is the wiring diagram I am talking about, I know why they have the solenoid there but my dc to dc converter only has a 72 volt in, 12v out and a ground, 3 wires.  The dc to dc converter they are showing has a 72v out and the 72v in is coming from the solenoid.  I have a dc to dc converter, so will that allow me to leave my headlight as self grounding?
Also, Todd emailed me back and told me the reason I got two diodes from them and not one is because they go in parallel across the solenoid.  Todd also cleared everything up for me, he is usually the one i talk to, he is a good guy.  I checked those diodes, the bigger one that you are saying goes to the solenoid is a 3 amp and the smaller silicone rectifier is a 1 amp (if I am reading these right), so do they have big enough amperage ratings to use on the coil and before the key switch?  Thanks a lot.
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frodus

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Re: EV Motorcycle Help
« Reply #89 on: December 04, 2009, 04:10:33 AM »

Its not a solenoid. Solenoids are mechanical actuators..... its a Relay and its not high current. I honestly don't like that setup because it puts pack voltage through the keyswitch.... not the best way to do it, in my opinion.

You can use your DC-DC converter with chassis ground, but remember, the chassis is ground so do not touch the pack + when leaning against any part of the chassis. If you do, disconnect the ground from the pack FIRST.

as far as those diodes, do what todd says, not me. If he says parallel, then do that. Make sure they're the right direction.
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Travis
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