alt Hacker NewsNo, it means the motor is smaller and it can be put into the wheel
Replies
MostlyStable • today at 2:17 PM
aren't there other issues with having the motor in the wheels? Unsprung mass, plus the wheels can get pretty banged around?
No, it means the motor is smaller and it can be put into the wheel
aren't there other issues with having the motor in the wheels? Unsprung mass, plus the wheels can get pretty banged around?
It doesn't make that a good idea. Armature losses are proportional to torque squared - doesn't matter if it is radial or axial design. That's why all the EVs today have gear boxes with ratios like 13:1. Get rid of that gearbox and the steady-state losses go up with the square of that ratio. Then there are the issues of sprung mass, and where to put the mechanical brakes.