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Forum: Open ReVolt: open source DC motor controller 01-18-2017, 10:33 AM
Replies: 3
Views: 2,533
Posted By z_power
Problem using bootloader

(this is for 500A DC controller)

I'd like to tinker a little with firmware code so working bootloader would be much more comfortable to use in car than ISP; found Adam's instructions regarding RTD...
Forum: Open ReVolt: open source DC motor controller 06-19-2015, 08:51 PM
Replies: 31
Views: 10,406
Posted By z_power
I was once getting crap on serial output, I even...

I was once getting crap on serial output, I even changed MAX serial interface IC but then I found poor solder job (mine...) at its RX line. Check if you have +5V and GND (pins 15 & 16) and...
Forum: Fossil Fuel Free 01-12-2015, 05:21 AM
Replies: 3,431
Views: 982,473
Posted By z_power
Hi cts, you might want to check this supplier in...

Hi cts, you might want to check this supplier in Poland: Feryster...
Forum: Fossil Fuel Free 01-07-2015, 04:51 PM
Replies: 54
Views: 13,702
Posted By z_power
Sorry for thread hijacking but I've got some good...

Sorry for thread hijacking but I've got some good news to share - my heater saga came to happy ending :)

A mailman dropped a package at my place today...

I swapped 120V element in and THIS IS...
Forum: Fossil Fuel Free 12-29-2014, 03:22 AM
Replies: 54
Views: 13,702
Posted By z_power
We're having -8 degC today and I'm tinkering with...

We're having -8 degC today and I'm tinkering with heater too so here's my .02:

- I didn't found any DC voltage rating of these small snap-switch thermostats so it's better to use em for...
Forum: Fossil Fuel Free 10-13-2014, 03:37 PM
Replies: 54
Views: 13,702
Posted By z_power
I'm currently tweaking last 10% of my FIAT...

I'm currently tweaking last 10% of my FIAT Cinquecento conversion (as we all know this step takes >90% of total work time) and around 98th percent there's scheduled upgrade to EPS from younger...
Forum: Fossil Fuel Free 10-12-2014, 07:23 AM
Replies: 54
Views: 13,702
Posted By z_power
As for power steering - some later production...

As for power steering - some later production (but still "B" generation) Corsas had full electric power assisted steering column instead of hydraulic rack. It's easy to find complete kit in UK...
Forum: Fossil Fuel Free 09-02-2014, 06:29 PM
Replies: 3,431
Views: 982,473
Posted By z_power
jddcircuit drom diyelectriccar forums is a guru...

jddcircuit drom diyelectriccar forums is a guru on resolver reading; quite a lot of info in his thread: Toyota IPM Motor Controller Design Details - DIY Electric Car Forums...
Forum: Fossil Fuel Free 08-21-2014, 12:36 PM
Replies: 3,431
Views: 982,473
Posted By z_power
I have no personal experience but there's a few...

I have no personal experience but there's a few signals from other people involved: Buyer Beware: AC-45 and AC-46 Motors (my personal experience) - DIY Electric Car Forums...
Forum: Fossil Fuel Free 08-20-2014, 11:28 AM
Replies: 3,431
Views: 982,473
Posted By z_power
Suppose we change firmware in an AC controller...

Suppose we change firmware in an AC controller and tie U, V, W outputs together. Doesn't it make a DC controller with synchronous rectification?
Forum: Open ReVolt: open source DC motor controller 07-28-2014, 11:59 AM
Replies: 7,381
Views: 2,555,293
Posted By z_power
This actually got me thinking a few weeks ago:...

This actually got me thinking a few weeks ago: "what if something fails im my precharge - fuse, connection or anything; I wouldn't notice the failure until contactor burns or welds itself".
There's...
Forum: Open ReVolt: open source DC motor controller 07-28-2014, 05:47 AM
Replies: 7,381
Views: 2,555,293
Posted By z_power
I use 1 of 1000uF SBE cap, pack voltage is ~184V,...

I use 1 of 1000uF SBE cap, pack voltage is ~184V, precharge resistor is 15 ohm 40W and it takes less than a second to reach more than 90% voltage (RC=0.015s, 5*RC=0.075s, test with scope confirms...
Forum: Open ReVolt: open source DC motor controller 07-20-2014, 05:29 AM
Replies: 7,381
Views: 2,555,293
Posted By z_power
I actually use snubbers with SBE cap and didn't...

I actually use snubbers with SBE cap and didn't see any strange things in scope patterns; looks like they don't hurt anything but also don't give to much benefit in this application (laminated bus +...
Forum: Open ReVolt: open source DC motor controller 04-11-2014, 06:13 PM
Replies: 7,381
Views: 2,555,293
Posted By z_power
Oh man, this is so irresponsible way of...

Oh man, this is so irresponsible way of undertaking design decisions :rolleyes: But I wish I was so irresponsible to think in these ways ;)
Forum: Open ReVolt: open source DC motor controller 03-15-2014, 04:50 PM
Replies: 7,381
Views: 2,555,293
Posted By z_power
Good to see some intensive posting in this thread...

Good to see some intensive posting in this thread again :)
For EU guys there's an idea to buy SBE capacitors direct from Future to save on overseas shipping (weight!) and customs because they send...
Forum: Fossil Fuel Free 06-19-2013, 06:56 PM
Replies: 7
Views: 1,358
Posted By z_power
You can loop the wire trough LEM sensor a few...

You can loop the wire trough LEM sensor a few times so it reads a few times multiplied current; makes light loads testing easier :cool:
Forum: Open ReVolt: open source DC motor controller 03-12-2013, 06:01 PM
Replies: 7,381
Views: 2,555,293
Posted By z_power
Manuel, send me pm with your email address,...

Manuel,
send me pm with your email address, it's ~100kB pdf so I can send it to you via e-mail.
Mike
Forum: Fossil Fuel Free 03-11-2013, 05:42 PM
Replies: 31
Views: 5,181
Posted By z_power
I'm not trying to offend anyone but somehow I...

I'm not trying to offend anyone but somehow I feel that amount of persons discussing in web about range issues and fast recharging times is at least 10^3 times greater than number of those who are...
Forum: Fossil Fuel Free 02-06-2013, 07:37 PM
Replies: 262
Views: 60,075
Posted By z_power
Ha, this is much nicer to read than here (scroll...

Ha, this is much nicer to read than here (scroll down to "November"): Achmed Khammas - Das Buch der Synergie - Teil C - Mobile Anwendungen 2006 (Fortsetzung)...
Forum: Open ReVolt: open source DC motor controller 01-14-2013, 06:59 AM
Replies: 187
Views: 63,603
Posted By z_power
FieroChris, we seem to come to the same design in...

FieroChris, we seem to come to the same design in independent way - isn't it always like this with greatest inventions? :D Here's a picture of unfinished cooling plate with drilled cooling channels,...
Forum: Open ReVolt: open source DC motor controller 01-12-2013, 12:14 PM
Replies: 7,381
Views: 2,555,293
Posted By z_power
I don't feel like expert but one of easy checks...

I don't feel like expert but one of easy checks is 12V supply behaviour during this event...
Forum: Open ReVolt: open source DC motor controller 09-26-2012, 05:08 PM
Replies: 1
Views: 1,928
Posted By z_power
OK, after crawling trough code I see that...

OK, after crawling trough code I see that processor doesn't blindly spit data but rather responds on requests, therefore no activity on TxD except "initiial greetings".
Hooked cable today and got...
Showing results 1 to 22 of 22

 
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