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Search: Posts Made By: P-hack
Forum: General Efficiency Discussion 01-27-2016, 04:38 PM
Replies: 15
Views: 2,727
Posted By P-hack
how will you "mod" this? how will you beat the...

how will you "mod" this? how will you beat the epa ratings?

you won't.

it has absolutely nothing to do with this forum.

it belongs in the political garbage bin. just like the concern...
Forum: Fossil Fuel Free 01-24-2016, 09:14 PM
Replies: 3,480
Views: 912,464
Posted By P-hack
re: switching voltage w/out rewinding, not sure...

re: switching voltage w/out rewinding, not sure if I am going to attempt this on the bike, but here is my scritchscratch upon dissecting a cheap motor a bit (goal: fastest 0-60 for the least $$ using...
Forum: The Lounge 01-23-2016, 11:59 PM
Replies: 29
Views: 5,659
Posted By P-hack
I wondered why you were invoking images of...

I wondered why you were invoking images of indiana jones :)

You will have to forgive me for taking what you say at face value.
Forum: The Lounge 01-23-2016, 02:40 AM
Replies: 29
Views: 5,659
Posted By P-hack
bring it to the attention of the insurance...

bring it to the attention of the insurance companies. They would like any excuse to increase liability costs.

the nih seems to agree w/you
Bull bars and vulnerable road users. - PubMed - NCBI...
Forum: The Lounge 12-29-2015, 05:09 PM
Replies: 17
Views: 2,718
Posted By P-hack
please don't perpetuate the idea that Tesla made...

please don't perpetuate the idea that Tesla made that...

everything on ".com.co" is phoney crap, please tell me that nobody is stupid enough to believe any of this.
...
Forum: The Lounge 12-22-2015, 11:06 PM
Replies: 233
Views: 36,069
Posted By P-hack
here's a short list of 16 angular units. ...

here's a short list of 16 angular units.
https://en.wikipedia.org/wiki/Angle#Units

the grad is sometimes grade, "A kilometre was historically defined as a centi-grad of arc along a great circle...
Forum: The Lounge 12-21-2015, 02:23 PM
Replies: 233
Views: 36,069
Posted By P-hack
Because it is pretty well standardized and...

Because it is pretty well standardized and trivial, except the date format bit.




Lol, nope, the times they are a changin. Will always need a "leap" something to get the days and the years to...
Forum: Fossil Fuel Free 12-16-2015, 06:04 PM
Replies: 423
Views: 125,585
Posted By P-hack
Probably not, it is a bit nebulous. Admittedly I...

Probably not, it is a bit nebulous. Admittedly I have focused on induction, and in DIY they are almost exclusively delta (i.e. HPEVS, reconfigures), pretty much make it reasonably symmetrical and...
Forum: Fossil Fuel Free 12-16-2015, 04:01 PM
Replies: 423
Views: 125,585
Posted By P-hack
Just to clarify, the motor windings will see the...

Just to clarify, the motor windings will see the same current, if you have 100 amps going through two fields in series, or 200 amps split between two 100 amp fields in parallel, sameo-sameo as far as...
Forum: Fossil Fuel Free 12-03-2015, 05:24 AM
Replies: 3,480
Views: 912,464
Posted By P-hack
ok, *maybe* fire, brand name and $50...

ok, *maybe* fire, brand name and $50 (http://www.amazon.com/Fire-Display-Wi-Fi-GB-Special/dp/B00TSUGXKE/ref=sr_1_1?ie=UTF8&qid=1449137765&sr=8-1&keywords=fire+tablet#tech) and supported by cordova...
Forum: Fossil Fuel Free 12-02-2015, 02:43 PM
Replies: 3,480
Views: 912,464
Posted By P-hack
fwiw, phonegap seems to have evolved quite a bit...

fwiw, phonegap seems to have evolved quite a bit since I last looked (android/ios/windows)

PhoneGap | Home (http://phonegap.com/)

I'm sure its a lot more fluff and rabbit holes than I imagined,...
Forum: Fossil Fuel Free 12-02-2015, 01:32 PM
Replies: 3,480
Views: 912,464
Posted By P-hack
there are thousands of tablets out there that run...

there are thousands of tablets out there that run android already though...
Amazon.com: android tablet bluetooth gps - Feature Keywords: 4 selected / Android / Tablets ...: Electronics...
Forum: Fossil Fuel Free 12-02-2015, 09:18 AM
Replies: 3,480
Views: 912,464
Posted By P-hack
Well the tesla uses a linux tablet, and you can...

Well the tesla uses a linux tablet, and you can get one for like $50 with bluetooth/gps/wifi/sd slot/google maps/4g/usb (ssd?)/phone integration/stereo sound/ attach rearview camera/etc. etc. etc.
...
Forum: Fossil Fuel Free 12-01-2015, 04:56 PM
Replies: 3,480
Views: 912,464
Posted By P-hack
yup hc-05 is what I used (did you see my diyec...

yup hc-05 is what I used (did you see my diyec link edit in #2425?). I also made life harder on myself by changing the pin, and matching the default controller baud, instead of just plugging it in...
Forum: Fossil Fuel Free 12-01-2015, 04:18 PM
Replies: 3,480
Views: 912,464
Posted By P-hack
it plugs straight in iirc, just choose the right...

it plugs straight in iirc, just choose the right voltage pin. default is 9600 and 1234 PIN.

for now I just use it like a pocket hyperterminal, but that can certainly be built upon with formatted...
Forum: Fossil Fuel Free 12-01-2015, 03:32 PM
Replies: 3,480
Views: 912,464
Posted By P-hack
I think that's what I'm getting at, just log it...

I think that's what I'm getting at, just log it over bluetooth to an android or pc, easy to use, probably has all kinds of storage, $5 bluetooth plugs in to the uart, badda-bing. gets you out of...
Forum: Fossil Fuel Free 11-30-2015, 09:39 PM
Replies: 423
Views: 125,585
Posted By P-hack
Ah, gearing is nice, didn't know it was that sort...

Ah, gearing is nice, didn't know it was that sort of budget :)

fyi, saw this vid and thought I'd put it here. The 123kw mg2 on the highlander looks pretty much the same as the 47kw mg2 in the...
Forum: The Lounge 11-30-2015, 04:48 PM
Replies: 7
Views: 1,219
Posted By P-hack
wired still performs way better, dare I say it...

wired still performs way better, dare I say it will always perform better.

(I often remote to other computers on my subnet, big difference, to the internet, not so much, but that is lightyears...
Forum: Fossil Fuel Free 11-29-2015, 05:59 PM
Replies: 3,480
Views: 912,464
Posted By P-hack
sorry for the interruption, thought this was...

sorry for the interruption, thought this was interesting
https://www.youtube.com/watch?v=l1CuAvw6MwM

plus some notes for later maybe:
Tufquin Paper Product List from EIS | 3M Flexible Insulation...
Forum: Fossil Fuel Free 11-25-2015, 01:16 PM
Replies: 3,480
Views: 912,464
Posted By P-hack
did simon say if grinding the rotor bar end...

did simon say if grinding the rotor bar end connections off would make the stator a better inductor with a reasonable air gap? :)


re: programming, javascript for gui stuff these days. If...
Forum: Fossil Fuel Free 11-25-2015, 11:58 AM
Replies: 3,480
Views: 912,464
Posted By P-hack
that is interesting. I wonder if simon and crew...

that is interesting. I wonder if simon and crew could help out 72v guy.

But since budget is such a concern there, and motors are plentiful and cheap (and since you put the idea in my head long...
Forum: Fossil Fuel Free 11-25-2015, 11:04 AM
Replies: 3,480
Views: 912,464
Posted By P-hack
Yup, but we are already discussing...

Yup, but we are already discussing winding/modding our own inductors ;)

re paul: 72v guy (and post apocalypse), it does seem like there isn't a lot of info on hacking the motors themselves,...
Forum: Fossil Fuel Free 11-25-2015, 09:46 AM
Replies: 3,480
Views: 912,464
Posted By P-hack
since it is kinda related, I'll just leave this...

since it is kinda related, I'll just leave this here. But the idea is to push the fields to their current limit, and switch to delta well into the field weakening part of wye (and careful switching...
Forum: Fossil Fuel Free 11-23-2015, 08:01 PM
Replies: 3,480
Views: 912,464
Posted By P-hack
fyi, the grid tie stuff is also interesting, and...

fyi, the grid tie stuff is also interesting, and speaking of no storage and two phase motors (and line power):
http://www.iraj.in/journal/journal_file/journal_pdf/1-38-139391756246-49.pdf
Forum: Fossil Fuel Free 11-23-2015, 04:53 PM
Replies: 3,480
Views: 912,464
Posted By P-hack
looking at the phase current (I've modeled it...

looking at the phase current (I've modeled it here as 100a peak/phase) being fed through the inverter switches, you have 1 output switch (diode) on the boost converter that has to feed all of them,...
Showing results 1 to 25 of 203

 
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