A drive apparatus basically comprises left and right drive units each
including at least a reduction gear, an electric motor without a
permanent magnet, and a brake disc. Each of the left and right drive
units is housed substantially within a rim of each of rear wheels which
are driven wheels. A 4WD control unit is configured to control a pair of
inverters to separately drive the electric motors when a vehicle speed is
in a range between a standing start speed and a prescribed vehicle speed,
and to stop driving the electric motors when the vehicle speed is equal
to or greater than the prescribed vehicle speed to place the rear wheels
in a driven state. Accordingly, a friction loss due to a cogging torque
encountered in a conventional permanent magnet-type motor is eliminated,
and a lightweight drive apparatus is obtained. Fuel efficiently is
accordingly improved.