The present invention relates to a power generation system for a transportation vehicle. The power generation system includes an axle, a brake disc having a space in a center, a brake pad for applying braking force to the brake disc, a rotor installed on a...

A drive unit includes first and second rotary electric machines, a first housing that houses the first and second rotary electric machines, a PCU that controls the first rotary electric machine and the second rotary electric machine, and a connector that h...