Hi, Happy with the last 2 reactions !
Yes PML is definitively the big example! I am not intent to include the controller in the WM. I don't see an advantage in it and it doesn't really matter where the controller is located. Gearing ? No gearing ! The motor is producing tork directly on the wheel itself. The nature of the BLDC motor is that it will be great for Regenerative Braking
. I don't think that 100.000 units/ ??? Month / year is a very realistic perspective.
The real problems that keeps me busy at this moment are:
We came to the conclusion that in order to place the motor in the wheel, the brake has to be removed. This is legally a big problem. Also because I target the conversion market, there is to much diversity of vehicles. In order to make it commercially feasible I need a commercial contact in the US market and a first big volume car that we could target for conversion. Collector Classics are a great target market. Let's assume we take these sort of cars. So we speak about rear driven / drum break cars. It could be possible that we let in that case the drum brake in place. This makes the project already more realistic.
Differential in left right speed is no problem at all because the wheels are totally independent. To limit the slip it is easily possible to read the wheel RPM from the Hall sensors and from there on to limit the current to the slipping wheel, if we want to simulate a limited slip differential.
We have to be realistic and set (gradually) the order of priority of the problems. The wheel motor was already used by Ferdinand Porsche in 1896 !!! So technically there is not an insurmountable problem. No problem of enough Tork, efficiency etc etc. Till now the Battery was the problem.
And for our "Affordable Wheel Motor" project the BIG problem is Commercially and Legal in the first place. So before we start a discussion about how much % regenerative energy we can recuperate when braking we should deal with the issues: How must the WM be Legally so that we are allowed to commercialize it in the US. Who is placed to commercialise it ? What car are we targeting ? etc etc.