Yes it's a lot of money. But I don't doubt the amount of time and manufacturing cost that goes into it. Especially for a small volume outfit and fully CNC machined. Can't expect China prices. :) I like your idea of the MG2 internals in a new case. Those figures sound doable. I might have to watch so...

Received a reply from Iulian on the Joule Motors 130KW motor. They are available now and one off pricing is around 7000 euros. :( With our crappy exchange rate in AU that converts to about $11500 AUD before shipping. He did indicate that the price could get better with a larger order.... but I only ...

Thanks Pete, Yeah it does. Not as much torque as a Hyper 9 or Leaf motor but I don't need it to be a rocket ship. I have contacted them in the past via their site contact form but didn't get a reply. Just today I found another email address that Iulian has on his site so I gave that a try. Fingers c...

I think part of the confusion here may be coming from using the terms AC controller. Both induction and permanent magnet motors are AC but the control algorithms used by OI to control each are very different. Thanks Pete. Yes I hadn't considered the difference in control between induction and IPM. ...

Thanks Pete, I did see your table of contents in the first post. I'll have to work through them. A lot to learn there. To protect against meltdown, on both AC induction and PM motors you either rely on built in protection (Prius Gen2 or Gen3 inverters) or the over current comparator on the OI contro...

Thanks Pete. I read your post on page 12 of the IPM motor simulation and FOC SW thread last night (about PM motors). Thanks for your effort in writing all this up. Your wealth of knowledge is impressive. I think I can understand why you are saying the low inductance is an issue after reading that. N...

In order to get an induction motor that's made for 50hz to run faster you have to make that AC 100hz, 200hz, 400hz etc to get the higher rpm. Giving it more volts is a DC motor thing. That's where the frequency comes into play. Now you have to synthesise an AC sine wave at 400hz using a chopped DC (...

Also 6kHz or 8kHz is the optimal choice for normal IGBTs. Maybe maximum 14KHz beyond that switching loses rise so high that inverter is heating up a lot more. That is a lot less robust that it should be. Beyond that i would suggest you use small avalanche IGBTs with very low resistance. But that wo...

I'm planning on using a forklift AC motor (48v), and a Prius inverter. Am I in trouble? What voltage pack should I be designing for? Not a dumb question, but perhaps you are in trouble... ;) Well sine OI used to mplement a sort of buck - boost converter for the voltage. You could use 300Vdc from th...

Not exactly on the topic of this thread, but I just noticed that it's now possible to buy a low cost Homeplug Green PHY. https://www.mouser.co.uk/ProductDetail/Lumissil/IS32CG5317-LQLA2?qs=iLbezkQI%252BshXdjXsbfc7eA%3D%3D This thing only costs £12 and it appears to have an SPI interface that suppor...

Awesome. Thanks for that information. Is there a way to limit max AC motor volts while running a higher DC bus so that it doesnt go over 180V AC or am I missunderstanding how AC control works. I wasn't thinking of running the motor at 280-300, just the battery. I'm still stuck in DC pwm world where ...

Hi Guys, Has anyone tried using an OI with a Hyper 9 motor? I am designing a trike and would like to use a Hyper 9 direct coupled to a 3.45 diff but i have a dilema. I want an AC motor for regen and easy (neat) reversing, but I also want to run a high voltage pack, say 280-300V so that I can utilise...

Hi Johannes, Thanks for that information. I will have to look up what MTPA is... I'm only guessing about the lack of reluctance torque, I'm no expert. My thoughts were that the IPM motors have reluctance torque because the magnets are embedded inside the rotor and at some point the rotor itself star...

No, it's just CAN if you use the Tesla ECU ( here ). Thanks for that information. I will have a look at that thread. For some reason I prefer the idea of incorporating CCS and/or Chademo into scratch build hardware/software rather than using proprietary gear. Not sure why. I think I like to underst...

Hi Johannes, New BMS looks great. Do you have any plans to incorporate Chademo charging control in the master unit? This would be a great addition considering CAN bus would be available. CCS would be great too but this seems a little more difficult and Ethernet based comms? Thanks for your developme...

Hi Johannes, Really impressed with your progress on the inverter. I have built my own DC controller but this AC stuff is next level. I don't even begin to understand all the math and transforms that go into making this work. Well done! Can you tell me if this inverter would work with the axial flux ...