DIY Electric Car Forums - Controllers http://www.diyelectriccar.com/forums en Thu, 02 Sep 2010 22:41:27 GMT vBulletin 60 http://www.diyelectriccar.com/forums/images/misc/rss.jpg DIY Electric Car Forums - Controllers http://www.diyelectriccar.com/forums Dumb Controller Question http://www.diyelectriccar.com/forums/showthread.php?t=49073&goto=newpost Tue, 31 Aug 2010 16:57:07 GMT I was thinking of buying a Kelly KDH14500B. Anyone used these? My engineer pal will kill me for asking this but anywho, the controller has regen... I was thinking of buying a Kelly KDH14500B. Anyone used these?

My engineer pal will kill me for asking this but anywho, the controller has regen but no revrse function, what does this mean exactly. How is reversing achieved?

Apologies in advance! :)

DMN. ]]> Controllers dmn http://www.diyelectriccar.com/forums/showthread.php?t=49073 DCP raptor 1200 OR Auburn double grizzly PWC1200??? http://www.diyelectriccar.com/forums/showthread.php?t=49024&goto=newpost Mon, 30 Aug 2010 10:18:52 GMT Anyone have any thoughts or experience with the DCP1200 OR Auburn Scientific pwc1200 controllers? I remember reading a few times about DCP... Anyone have any thoughts or experience with the DCP1200 OR Auburn Scientific pwc1200 controllers?

I remember reading a few times about DCP controllers being unreliable. The DCP can deliver over 1800 motor amps. and 156volts.

I cant find much info on the double grizzly performance. I gather its two grizzly controllers together. I know its a pulse width modulation unit, and can require liquid cooling for extended high current draw.

Running the Auburn at 192volts would give overall more HP than the DCP 156volt unit.

I am also doing research if my adc9" motor or an old 11" Kostov motor can handle the peek amps.

dave ]]> Controllers EV_dub http://www.diyelectriccar.com/forums/showthread.php?t=49024 help with regen http://www.diyelectriccar.com/forums/showthread.php?t=48933&goto=newpost Sat, 28 Aug 2010 04:23:28 GMT Do's any one know if thier is any way to get regen braking from my curtis 1205 controller & series wound motor.

thanks. ]]> Controllers nogas1 http://www.diyelectriccar.com/forums/showthread.php?t=48933 3-phase AC controller project. http://www.diyelectriccar.com/forums/showthread.php?t=48930&goto=newpost Sat, 28 Aug 2010 01:39:11 GMT I have 2 3-phase frequency drives that are brand new. One is taken apart for the amplifier and the other is complete. Would anyone be interested in... I have 2 3-phase frequency drives that are brand new. One is taken apart for the amplifier and the other is complete. Would anyone be interested in one to use as a base for an AC drive?
In the picture of the open cabinet you can see the frequency converter. It's programable via a small LCD panel on the front of the unit. Speed was controlled manually via. a potentiometer or automatic mode. I can only assume automatic is some programed ramp or speed. I have all the documentation for the unit which has all the wiring diagrams and whatnot.

They run off a DC bus internally like any other controller. The 3-phase input is rectified to DC then converted back to AC. Should accept DC supply from a battery without issues. Will probably need a high voltage source around 300+ vdc. I'm not sure how low it would go.

I just thought I'd offer it to you guys. I just don't have the time to tinker with them right now. It would make a great AC drive for an EV though.

I'm likely selling my EV FJ Yamaha if anyone would like to finish that project. Check my posts to find the thread about it.

Pics are here. http://chicago.craigslist.org/nch/tls/1922974546.html


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]]> Controllers lazzer408 http://www.diyelectriccar.com/forums/showthread.php?t=48930 Soliton 1 Lets Out Magic Smoke http://www.diyelectriccar.com/forums/showthread.php?t=48928&goto=newpost Sat, 28 Aug 2010 00:41:12 GMT http://www.youtube.com/watch?v=fz8b2H8aQAE :cool: http://www.youtube.com/watch?v=fz8b2H8aQAE

:cool: ]]> Controllers Brute Force http://www.diyelectriccar.com/forums/showthread.php?t=48928 Motor controller question http://www.diyelectriccar.com/forums/showthread.php?t=48838&goto=newpost Thu, 26 Aug 2010 03:26:00 GMT Hi, I bought this motor controller: http://yfrog.com/n6p1010002tj but I don't know if it uses a hall effect throttle or a potentiometer. So I tried to disassemble it and this should be the diagram of the circuits: http://yfrog.com/mucontrollerlk03newj . The motor controller is 24v and 350W. I tried to connect the two wires of the power locks connector and I measure 5.3V between the red and the black of the "to put" connector (throttle). Anyone know how to connect and use it? ]]> Controllers rainbow http://www.diyelectriccar.com/forums/showthread.php?t=48838 Controller Problem http://www.diyelectriccar.com/forums/showthread.php?t=48798&goto=newpost Wed, 25 Aug 2010 01:51:35 GMT _This is my first conversion, i hav tried building my own controllers they work for a time an then end in smoke. My aim is 72v 400amp._ _Any way i... This is my first conversion, i hav tried building my own controllers they work for a time an then end in smoke. My aim is 72v 400amp.
Any way i hav acquired a curtis 48v 350amp 1205 controller.
My problem is that the motor speed do not start from zero, but start turning as soon as main contactor close. I hav no idea what to do.

Any suggestion please. advance thanks ]]> Controllers nogas1 http://www.diyelectriccar.com/forums/showthread.php?t=48798 Another freewheel diode question http://www.diyelectriccar.com/forums/showthread.php?t=48690&goto=newpost Sun, 22 Aug 2010 18:17:25 GMT I noticed one of the old curtis controller cores I have uses 4 MUR2020 diodes. These have a rating of 20A but the controller was rated at 275A. When... I noticed one of the old curtis controller cores I have uses 4 MUR2020 diodes. These have a rating of 20A but the controller was rated at 275A. When I modify controllers I have always gone under the assumption that the diodes must be able to handle at least as much current as the switches. These would have had a total current rating of 80A so my question is why did it not blow up? By trying to at least equal the switch rating am I using an unnecessarily large number of diodes? Thanks ]]> Controllers jehan12413 http://www.diyelectriccar.com/forums/showthread.php?t=48690 Can you identify this? http://www.diyelectriccar.com/forums/showthread.php?t=48579&goto=newpost Fri, 20 Aug 2010 04:59:55 GMT Can anybody tell me who makes this controller? Can anybody tell me who makes this controller?
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]]> Controllers jwriter http://www.diyelectriccar.com/forums/showthread.php?t=48579 Synchronizing wheel speeds... http://www.diyelectriccar.com/forums/showthread.php?t=48519&goto=newpost Wed, 18 Aug 2010 20:56:20 GMT Ok, so here's my situation. I'm planning on converting a RWD go kart/atv into a hybrid EV. It's large enough and street legal, so I'll be using it to commute to and from class.

The setup is that it has a 150cc 4stroke motor in the back running a CVT to an LSD (Limited slip differential).

For the conversion I plan to use a 2 hub-motor kit for the front wheels. I'm planning on using a 72V kit and under-powering it to 48 or 60 so that if this project works, I can transfer it to a larger vehicle and have enough power.

Now, my issue is how to synchronize the wheel speeds for the wheels. I can assume that the wheels on one side will be spinning at the same rate during turns but even when moving forward, I'd need them all to spin at the same rate. I can put shaft encoders on the original motors and on the electric motors... but it's the controllers I'm worried about. What would be a suitable controller that can automatically trim/adjust itself while underway.

Also, definitely want Regen and possible the ability to use a capacitor bank... ]]> Controllers Jongscx http://www.diyelectriccar.com/forums/showthread.php?t=48519 Low ESR capacitors http://www.diyelectriccar.com/forums/showthread.php?t=48407&goto=newpost Mon, 16 Aug 2010 21:22:25 GMT I saw on here once that when selecting capacitors for use, whether that be to smooth out pack voltage to lengthen it's useful life, or what may be the case, that one should select capacitors with low equivalent series resistance (ESR).
What would be considered "low" in this case? I've seen several large caps with approximately 50mOhm of esr. Is that "low" enough? ]]> Controllers CaptConan http://www.diyelectriccar.com/forums/showthread.php?t=48407 Permobil Pilot+ Controller http://www.diyelectriccar.com/forums/showthread.php?t=48406&goto=newpost Mon, 16 Aug 2010 21:07:16 GMT Hi All, I rescued a Permobil Playman electric wheelchair from going to scrap at the weekend. It has two Leroy Somer 24V 300W motors with reduction... Hi All,
I rescued a Permobil Playman electric wheelchair from going to scrap at the weekend.
It has two Leroy Somer 24V 300W motors with reduction gearboxes driving the two main wheels. Each motor has an electric brake on the back of each motor.
These motors are controlled via joystick to a PG Drives Technology Ltd controller. It is a Pilot+ Type D49987/7 controller.

Does anyone know anything about this controller / wiring etc?

Rob ]]> Controllers RobSmith http://www.diyelectriccar.com/forums/showthread.php?t=48406 Buck converter question http://www.diyelectriccar.com/forums/showthread.php?t=48401&goto=newpost Mon, 16 Aug 2010 17:38:51 GMT With the problems I'm having finding higher rated freewheel diodes for my curtis controllers and after reading the last post under "1000 amps on the loose" I'm wondering if I can connect a large freewheel diode across the motor in addition to the ones in the controllers or will this be asking for trouble? ]]> Controllers jehan12413 http://www.diyelectriccar.com/forums/showthread.php?t=48401 controller components http://www.diyelectriccar.com/forums/showthread.php?t=48392&goto=newpost Mon, 16 Aug 2010 15:28:22 GMT Just recently I read a post about a controller which listed the MOSFETS used along with current rating on resistance and freewheel diode setup. Now I... Just recently I read a post about a controller which listed the MOSFETS used along with current rating on resistance and freewheel diode setup. Now I can't remember where the post is or the title. Can anyone help me find it? ]]> Controllers jehan12413 http://www.diyelectriccar.com/forums/showthread.php?t=48392 My old controller has died and I need a new (AC) http://www.diyelectriccar.com/forums/showthread.php?t=48182&goto=newpost Wed, 11 Aug 2010 17:17:59 GMT Hi All Am in search of a AC controller for my motor My old controller has died and I need a new Se picture of motor The motor is an 18kw... Hi All

Am in search of a AC controller for my motor
My old controller has died and I need a new
Se picture of motor

The motor is an 18kw 100V 200Hz 137A
The motor has en encoder in one side, 512 per rev. A and B channel but it can be changed.
My battery pack is 144V 210A lead

Anyone that can help to point me in the right direction

THANKS
/Odd
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