High Samborambo,
Happy with your contribution in this discussion !
The reason I did not shared openly my progression is that I felt no input (only scepticism
) from the other members at first. Second point is that I have no ambition to teach, I want to do business. Therefore I want an approach inspired by practicality.
So far:
Thanks for the tip about Insulated Gate Bipolar Transistor. I am 52 and my knowledge of electronics is getting a bit rusty.
I 'rang' the Distributor of Infineon in Brussels where I asked them for this "
six pack". They said they did not 'carry stock of' this item because of infrequent demand, but they should investigate. They could/would not give a price.
However, I was not anticipating 300V. Normal should be 8 x 12 volt = 96 v. If we start with 8 V Trojans of 2 banks in parallel ... it gets bulky to get to even 150V......
.....For the wiring I was indeed intending to use aluminium, because as I see it now, unsprung weight is the (only?) possible hurdle to success.
For what is considered the total construction of the wheel motor, I gave up on the idea to put the magnets in the rim and use the brake caliper to hold the rest of the engine. Because of the huge forces that the magnets will apply to the stator of the engine, it will be very difficult to change a tire + rim by the side of the road in case of a flat. The magnets can be destroyed if they smash in to the stator. Also the aluminium rim can flex a few mm and the airgap must be to big. Better to have the assembly under control in the factory.
An other possibility is a custom made 2 piece rim.
A 36 finger stator ??? Have you measured the dimension of 1 coil with a 3 mm thick wire? and the brake caliper?
I don't want to go open source anymore. Because the feedback in this forum is to theoretical and to far from practical reality.
However Samborambo I will PM you about how we could cooperate.
Please let this thread be only dedicated to
commercial contacting and brainstorming.