01-27-2019, 12:33 PM
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#3311 (permalink)
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Master EcoModder
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Quote:
Originally Posted by esali1987
Does the precharge circuit and HV pack have to been hooked up for this to happen?
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On my control board, the precharge and main contactors were timed. They clicked when they should have, but only if the throttle was there and was in the dead zone between forward and regen.
If there is no HV pack, the motor won't move. The 12V battery used for the controller ONLY provides power to the control board.
I didn't check if the IGBT drivers fire with no HV pack. I assume that they would, since the control board doesn't really know if the HV pack is there .. at least it didn't in my version.
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01-27-2019, 04:40 PM
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#3312 (permalink)
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EcoModding Lurker
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Im slowly putting the invertor together  , has anyone got the pin out for Pauls resolver to encoder board, I currently have ver 1.2, Paul sent me a diagram of ver 1.3 but the pin out looks different , I dont want to chance it.  |
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01-31-2019, 07:30 AM
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#3313 (permalink)
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The following takes place between 11am and 12pm. Events occur in real time.
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Now, Cole, when you shift the gear and that little needle on the ammeter goes into the red and reads 2000 Amps, that's bad.
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01-31-2019, 08:50 AM
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#3314 (permalink)
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12pm to 1pm
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Now, Cole, when you shift the gear and that little needle on the ammeter goes into the red and reads 2000 Amps, that's bad.
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01-31-2019, 12:06 PM
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#3315 (permalink)
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Master EcoModder
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3pm to 4pm (Yes I took a break)
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Now, Cole, when you shift the gear and that little needle on the ammeter goes into the red and reads 2000 Amps, that's bad.
www.evbmw.com
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02-04-2019, 11:01 AM
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#3316 (permalink)
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Master EcoModder
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Question time : Do I need to use 3 current sensors? or will two suffice. From what I can see the fault logic at least requires 3 current sensors.
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Now, Cole, when you shift the gear and that little needle on the ammeter goes into the red and reads 2000 Amps, that's bad.
www.evbmw.com
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02-04-2019, 12:49 PM
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#3317 (permalink)
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Well, I fitted a 3rd LEM and the inverter burst into life. Now outputting 10khz pwm on all 6 channels. Now I just need to figure how how to make it turn a motor ...
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Now, Cole, when you shift the gear and that little needle on the ammeter goes into the red and reads 2000 Amps, that's bad.
www.evbmw.com
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02-04-2019, 04:22 PM
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#3318 (permalink)
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Quote:
Originally Posted by jackbauer
Well, I fitted a 3rd LEM and the inverter burst into life. Now outputting 10khz pwm on all 6 channels. Now I just need to figure how how to make it turn a motor ...
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If you load up my parameter file, it should run with a potbox throttle on pretty much any AC induction motor.
There may be a bit of overshoot on the torque command ... and you'll have to set your encoder pulses per revolution .. but it should spin unloaded
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In THEORY there is no difference between Theory and Practice
In PRACTICE there IS!
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02-05-2019, 07:29 AM
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#3319 (permalink)
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I'm using a hall throttle and so far no luck.
Have configured throttle.
Motor and HV connected.
Confirmed mechanical speed in both direction being read when motor turned by hand.
No global faults and all igbts switching at 10khz but throttle has no effect on pwm generation and no current being generated. I suspect something is holding off the current generation but struggling to find it.
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Now, Cole, when you shift the gear and that little needle on the ammeter goes into the red and reads 2000 Amps, that's bad.
www.evbmw.com
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02-05-2019, 12:48 PM
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#3320 (permalink)
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Master EcoModder
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Found the problem. Seems the call to the space vector modulation routine was commented out so no wonder I couldn't generate any pwm 
Still not had any luck with the rotor tuning routine but guessed a few times for the rotor time constand and managed to rip my arm out of its socket trying to hold the output shaft
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Now, Cole, when you shift the gear and that little needle on the ammeter goes into the red and reads 2000 Amps, that's bad.
www.evbmw.com
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