Hey guys,
Ok so for my final year project I've researched about traction and slip, etc, and I came across the traction circle, where each tyre has a specified 'budget' of friction that should never be exceeded during cornering. Now the longitudinal acceleration exerted will be different for...
We are using Brushless DC motors for the project.
Your point makes me think about something else. I've always wondered how the following scenario holds true:
BLDCs have characteristics similar to DC motors in the sense that:
->Ea=Wr*Kt
->T=Ia*Kt
Now we know that RPM is proportional to...
If you lift a wheel off the ground, its speed will not change - still 2,000 rpm. That is what synchronous motors do. Now imagine 1 wheel staying on the nice dry pavement and the other wheel on wet ice. The wheel on the ice will still turn at 2,000 rpm, but it will be slipping relative to the...
So now that we've deduced that the 'slip wheel' will stay at around 2000rpm whether on ice or on the pavement, we can deduce that comparing relative rpms of the two motors would not be an accurate measure of slip. Instead, if there was a way we could measure the current through each motor, and...
@DickL:
Thanks for the reply. Yeh we are using BLDC motors (Permanent-Magnet Synchronous Motors) and therefore I assume they will experience no slip. Now that's the issue I'm facing. If both rear wheels start on the road, then they will spin at a speed, say 2000rpm. Now what if I lifted one...
Hey guys,
I'm doing my final year project on an Electronic Drive System using 2 Brushless motors as hub-wheels for a rear-wheel drive. Just using steering angle and the accelerator to determine the differences in speeds for the drive wheels around a corner, etc.
Now I also wanted to implement...
hey DragonPetter...
yeh I'll be glad to answer any questions that I can help out with...not an expert but I'll definitely tell you why we did certain things the way we did in our design...
and yes so basically on a single shaft, you would have two separate motors...I really don't think this...
Hey guys,
I'm new to this site, and am a university student studying Electrical and Electronics engineering. I just completed a design project controlling a BLDC motor (pretty low powered at 60V, and giving output rpm of about 6000rpm). Now I had an idea where instead of using a single BLDCM...