Search found 57 matches

by ShadowNightmares
May 03 2021 1:57pm
Forum: Motor Technology
Topic: Water cooled car alternator
Replies: 48
Views: 2103

Re: Water cooled car alternator

Hi I have an 4s8p Lion configuration on my rotor. I have seen that others control the rotor current with a pwm controller for field weakening. But that to ambiguous. How can I connect field weakening with my speed. Or you can try a more easier solution, like the YT user Kouvpasir, that used a brush...
by ShadowNightmares
May 03 2021 1:48pm
Forum: Motor Technology
Topic: Water cooled car alternator
Replies: 48
Views: 2103

Re: Water cooled car alternator

Hi I have an 4s8p Lion configuration on my rotor. I have seen that others control the rotor current with a pwm controller for field weakening. But that to ambiguous. How can I connect field weakening with my speed. If you really want to connect the field weakening to the speed, one (more complicate...
by ShadowNightmares
Apr 29 2021 3:08pm
Forum: Motor Technology
Topic: Water cooled car alternator
Replies: 48
Views: 2103

Re: Water cooled car alternator

Sorry, my mistake. In this video, at 10:30 is showing how led's work. https://youtu.be/rQy-hIMY__A For reverse step when starting, I blame bad position of hall sensors, or even that controller doesn't see sensors. In those cases, controller will start maybe forward, maybe backward, until with befm ...
by ShadowNightmares
Apr 26 2021 9:59am
Forum: Motor Technology
Topic: Water cooled car alternator
Replies: 48
Views: 2103

Re: Water cooled car alternator

[...] The bad thing my bad starting behavior it not solved https://youtu.be/UIsWZSbUQpA [...] Hmm, that "cogging"/"locked rotor feeling" i already saw before. YT user Enrengineering suffered from the same condition until his chinese no-name motor controller broken So he tried a ...
by ShadowNightmares
Apr 24 2021 12:52am
Forum: EScooters/EMotorcycles
Topic: Project eTurd QSMotor 3000w 13870h - 6x 12v 5ah Lead Acid
Replies: 18
Views: 1850

Re: Project eTurd QSMotor 3000w 13870h - 6x 12v 5ah Lead Acid

kreal wrote:
Apr 21 2021 12:04pm
ShadowNightmares wrote:
Jun 10 2020 11:46pm
kreal wrote:
Apr 21 2020 5:36am

And motor mounted.
Is that an alternator?
Yep, converted.
Wow, nice! Do you have videos running with it?
At least spinning it on the controller
Is the alternator coupled to hall or light sensors?
by ShadowNightmares
Apr 20 2021 3:05pm
Forum: Motor Technology
Topic: Water cooled car alternator
Replies: 48
Views: 2103

Re: Water cooled car alternator

monette999 wrote:
Apr 10 2021 11:43am
[...]
That works now and gives me constant start. No lock up anymore.
[...]
I hope on my test the next day I will have a smooth start.
[...]
I would also love to see a video of you showing the alternator starting up and revving
by ShadowNightmares
Apr 10 2021 2:09pm
Forum: Motor Technology
Topic: Water cooled car alternator
Replies: 48
Views: 2103

Re: Water cooled car alternator

Well I made some progress by trouble shooting. It looks like my female sensor connectors needed some TLC. I engaged them out of the house and bend the latch back. Now they are tigh and have solid connections. The other things I did I swapped the sensor order. From YGB to BGY. That works now and giv...
by ShadowNightmares
Apr 05 2021 2:07pm
Forum: Motor Technology
Topic: Water cooled car alternator
Replies: 48
Views: 2103

Re: Water cooled car alternator

My rotor is 8 polepair. https://uploads.tapatalk-cdn.com/20210405/8cfefa6fdb7039f0e44f9a1a940e6e71.jpg Gesendet von meinem CPH1911 mit Tapatalk Alright. From what i researched (not an expert, so bear with me please), light (the space between teeth on the disk) on the photosensor will give output 1,...
by ShadowNightmares
Apr 05 2021 11:38am
Forum: Motor Technology
Topic: Water cooled car alternator
Replies: 48
Views: 2103

Re: Water cooled car alternator

Hi who can help me finding the correct synchronization stator field to Rotor. Greetings Robert https://uploads.tapatalk-cdn.com/20210405/61e6dad9eaa8f8c138ec233767a00845.jpg https://uploads.tapatalk-cdn.com/20210405/bf59606096d786d321e797822ec98972.jpg Gesendet von meinem CPH1911 mit Tapatalk https...
by ShadowNightmares
Mar 29 2021 1:47pm
Forum: Motor Technology
Topic: Car alternator to PMAC?
Replies: 37
Views: 1312

Re: Car alternator to PMAC?

Another thing that seems strange is it seems to always want to spin in reverse. Every time I have set it up on the nuc it spins in reverse, but there I can just change direction. And I just connect the phases and halls in any order and run self learn. On the cheap controller I have found a few comb...
by ShadowNightmares
Mar 29 2021 1:43pm
Forum: Motor Technology
Topic: Car alternator to PMAC?
Replies: 37
Views: 1312

Re: Car alternator to PMAC?

Another thing that seems strange is it seems to always want to spin in reverse. Every time I have set it up on the nuc it spins in reverse, but there I can just change direction. And I just connect the phases and halls in any order and run self learn. On the cheap controller I have found a few comb...
by ShadowNightmares
Mar 27 2021 2:13pm
Forum: Motor Technology
Topic: Car alternator to PMAC?
Replies: 37
Views: 1312

Re: Car alternator to PMAC?

Not good. Capacitors won't fix that problem. The flux it getting pulled to one side at high currents. Most motors have the hall sensors mounted at the end of the slot, not in the middle. Since the rotor teeth are skewed, this might be hard to make work also. You may need to use a separate encoder, ...
by ShadowNightmares
Mar 25 2021 7:20pm
Forum: Large EV General Discussion
Topic: SecondLife EV Batteries: Trustful?
Replies: 3
Views: 360

Re: SecondLife EV Batteries: Trustful?

Not sure if the site(s) referenced in posts in this list https://endless-sphere.com/forums/search.php?keywords=*SecondLife*&terms=all&author=&sc=1&sf=all&sr=posts&sk=t&sd=d&st=0&ch=300&t=0&submit=Search are the same, but if they are then they may have inf...
by ShadowNightmares
Mar 25 2021 12:51pm
Forum: Large EV General Discussion
Topic: SecondLife EV Batteries: Trustful?
Replies: 3
Views: 360

SecondLife EV Batteries: Trustful?

Hello, everyone, sorry if this isn't the correct place on the forum to ask, but i would like to know if someone here knows the british ebay store "SecondLife EV Batteries", i saw an ad about a 60kW motor for cheap, but i don't know if they are trustful or not since the motor is advertised ...
by ShadowNightmares
Mar 23 2021 12:31am
Forum: Motor Technology
Topic: Car alternator to PMAC?
Replies: 37
Views: 1312

Re: Car alternator to PMAC?

*Would getting a third sensor in a better position than the one to the right or left make a difference? Yeah, you NEED 3 sensors, and its better to keep them at the same level in the middle Check Austiwawa's Channel for a hall tester schematic, so that you will know if the sensors are working as th...
by ShadowNightmares
Mar 17 2021 11:06pm
Forum: Motor Technology
Topic: Car alternator to PMAC?
Replies: 37
Views: 1312

Re: Car alternator to PMAC?

I have been reading here: http://mitrocketscience.blogspot.com/2011/08/hall-effect-sensor-placement-for.html There are 36slots, so that means they are 10 mechanical degrees apart. And there are 6 pole pares on the rotor. Then it seems like I can mount the sensors 20degrees apart, so that would mean...
by ShadowNightmares
Mar 11 2021 9:21am
Forum: Motor Technology
Topic: Car alternator to PMAC?
Replies: 37
Views: 1312

Re: Car alternator to PMAC?

This one might be something to work on in that case: https://i.imgur.com/OrYHbuG.jpg https://i.imgur.com/WQunn8k.jpg https://i.imgur.com/rtj6ouX.jpg It is a hitachi water cooled alternator, seems to be 190A 14V Very thin laminations This watercooled 190Amp alternator is similar to the ones i mentio...
by ShadowNightmares
Mar 09 2021 10:05pm
Forum: Motor Technology
Topic: Car alternator to PMAC?
Replies: 37
Views: 1312

Re: Car alternator to PMAC?

I have been going trough some threads, but none of them use permanent magnets. I know there should be at least one, where they built a new rotor. But I havent found that so far, and I dont think it matters much because it is different. I want to use the original rotor with a permanent magnet. But I...
by ShadowNightmares
Mar 03 2021 11:50am
Forum: Motor Technology
Topic: Buick Lacrosse e-assist moto-alternator
Replies: 8
Views: 504

Re: Buick Lacrosse e-assist moto-alternator

Interesting I would have thought the PM rotor would be the way to go along with it being wound as (?)36 volt making it easier to gain rpm through voltage change... am I off in my thinking? In what ways are they better and would the controllers be cheaper for the A/C gen2? PS thanks for the advice T...
by ShadowNightmares
Mar 01 2021 2:28pm
Forum: Motor Technology
Topic: Buick Lacrosse e-assist moto-alternator
Replies: 8
Views: 504

Re: Buick Lacrosse e-assist moto-alternator

Building a 1988 KDX as a project motorcycle using a Buick Lacrosse 2012 e-assist moto-alternator for the motor. Should I go gen 1 over gen 2? seeking to achieve 15+ horsepower, anyone having made this mod please share your build specs Please go Gen2, Gen1 is more like an alternator than a full size...
by ShadowNightmares
Feb 24 2021 12:46pm
Forum: Motor Technology
Topic: Water cooled car alternator
Replies: 48
Views: 2103

Re: Water cooled car alternator

you can buy a Belt-driven Starter/Generator motor,It is a permanent magnet synchronous motor,It is very efficient,Maximum power is greater than 15Kw Buying those would be interesting to use, but you didn't told us their brand, voltage, or where its sold. There also are other starter/generators that...
by ShadowNightmares
Feb 18 2021 10:51am
Forum: Motor Technology
Topic: The One True Alter-motor
Replies: 22
Views: 13855

Re: The One True Alter-motor

I'm working on a project and I want to use a BAS to wholly replace the starter; I don't need the the power assist function, so it would just be starter be alternator. Does this motor have enough power for cold cranking and would I be able to use a standard controller? Mild hybrid DIY builds aren't ...
by ShadowNightmares
Feb 16 2021 3:09pm
Forum: Motor Technology
Topic: Motor extension/adapter, viable?
Replies: 0
Views: 214

Motor extension/adapter, viable?

Hello again, ES users I know someone that got one of those mini chinese cars but is looking to upgrade it (1000W if i'm not mistaken) So i had the idea to make a sleeve adapter/extension for Motenergy brushed motors, the ME1003 just as an example And between the motor and the gearbox, where the adap...
by ShadowNightmares
Feb 15 2021 1:20pm
Forum: Motor Technology
Topic: Water cooled car alternator
Replies: 48
Views: 2103

Re: Water cooled car alternator

Hi, i have bought two water cooled car alternators, for remake a rotor with magnets. But i measured parameters like no load current, revs and BEMF. And its not bad at all. I wonder if it's not worth using as is and not remake it. Because I will have a variable "magnet strength" = variable...
by ShadowNightmares
Jan 25 2021 1:01pm
Forum: Vendor Relations Corner
Topic: do not buy any yalu engine, they are rubbish mine has broken in 3 days, you did not waste money.
Replies: 24
Views: 592

Re: My1020 / Kunray / YaLU 1000 - 2000W motor ?

juanjo wrote:
Jan 25 2021 12:46pm
do not buy any yalu engine, they are rubbish mine has broken in 3 days, you did not waste money.
Broken in 3 days? What about warranty?