segaodma said:
I never said his motor is worse in performances. I'm thinking of a global world need, not some kid playing in the garage. Imagine whole world turning from gasoline to electric... do you think that DC motors have the future? Imagine the need for magnets... With the batteries technology that is coming, soon there will be so powerful batteries that the difference between DC with magnets and AC inductions would be unimportant. AC motors are much easier to build and can be controlled much better than the DC ones. Most of the people here have no clue what PIC is and how it works. I am talking about digitally controlled motors while some older members here have no clue what is that, playing with analog controllers that are 10x the price and thinking they have the power... blah! I would really want to know who are the guys here that know assembler programming and discard the spammers that are here to spend their time in a brainless humor.
You're a an ignorant retard, you know that? You come on here and make these sparkling generalizations and you have NO CLUE what you're talking about. Sure, you build a controller, contratufuckalations, so have many of us!!!! You want a frocking cookie? You're controller sounds like it belongs at a sideshow circus playing music for a merry go round. Keep at it, maybe you'll come up with something worthy of an investor. I don't think you realize, you're still just a "kid playing in the garage"......
You keep saying that we're saying "dc motors have the future", but you just aren't getting it.... you haven't been listening NOR reading any of the information on this forum. NO one on here has posted anything anything about a DC motor, those are brushless DC motors (AC Synchronous machines, look it up), which are much more similar to AC than a brushed motor. Induction motors CAN BE cheap, sure, but for performance, nothing out there beats a brushless DC motor for efficiency and power/weight ratio. I don't think you even know the difference between BLDC and a PMDC motor.
You assume that no one knows what a PIC is, way to go idiot, it's obvious that you haven't been paying ANY attention, nor reading. You've got what, 11 total posts and no one has ever heard of you. Lots of people on this forum have used PIC's. I've been using them since the mid 90's, been using assembly code the whole time and have 3 or 4 different types of programmers sitting in my pile of uC stuff. Most of the PCB's that I've designed for my projects use a PIC. Saying that most of us don't have a clue is IGNORANT. And FYI, no one designs analog controllers, everything is digital these days. Can't remember actually seeing ANY analog controllers actually, so that just proves my point, you're an ignoramous.
You're assuming all this off the wall crap and its obvious you don't know how to read, can't pay attention and are one of the cockiest people I've come across on this forum.
Here's some stuff to re-itterate.... since you just can't get it through you're thick skull:
NO ONE has posted anything about DC motors. Those are Brushless DC (Synchronous AC) motors.
NO ONE is designing analog controllers
MOST PEOPLE HERE know what a PIC is, and MANY OF US have designed projects using a PIC uC and Assembly code
THERE ARE QUITE A FEW PEOPLE HERE THAT HAVE DESIGNED CONTROLLERS, and yours is a poor excuse for an ACIM controller
There's a difference between BLDC and PMDC
you're stupid
And I figured I'd add my impression of your project:
Your project is unimpressive. You act like you've invented something so spectacular, but in the end, its just 6 FET's on a board with some very obious mistakes in design. You step the frequency, rather than have a smooth transition of the throttle, which just goes to show your lack of programming skill. You picked a heavy ass motor, used Lead acid and look like 99% of the other conversion projects out there. Its unoriginal. Its ugly. You're ignorant and can't read for shit.
Just because you got picked up on hackaday doesn't mean you're a god........
For the record: That ACIM that was posted earlier, is in my motorcycle right now. I'm very familiar with EV Systems.... maybe you should take a look at my website http://www.evfr.net. I've been helping people put EV's together for the last 3 years. I'm an Electrical Engineer that graduated from Virginia Tech with a minor in Math. I worked my way through college as a Co-operative Education student for 6 years. I've been working in industrial automation for over 10 years. I've worked at GE Energy on wind power and industrial drive systems, Blueprint Automation on food packaging robots and currently work at Leviton designing Lighting control systems..... oh, and I've worked with Synkromotive, Shorepower, EVComponents, Manzanita Micro, Elithion. I organized a large order ($25k) of batteries for this website last year. I've designed quite a few EV systems, you've designed ONE that I can see.
Can you maybe explain to me one thing?
who the hell are you?
) connected up to a cutting edge motor that weighs as much as some complete ebikes, and follow it up with a magic TO-220 (because they are cheap) 6-fet controller featuring the pinnacle in ripple current filtering technology, the poly-film cap. And to keep it going on the 10 year reliability theme, you go with lead acid for ultimate long-term performance. 
