A motor torque control apparatus for an automotive vehicle includes a
transmission which has either one of a fixed speed ratio and a variable
speed ratio; at least one motor/generator coupled with the transmission
as a propelling power source of the vehicle, a power of the power source
being transmitted to a road wheel for propulsion of the vehicle through
the transmission; and a controller configured to be electrically
connected to the motor/generator for motor torque control. Moreover, this
controller includes a disturbance observer that estimates a driving
force, and a motor torque control section that controls the driving force
estimated by the disturbance observer, to bring the estimated driving
force closer to a target driving force by way of servo control.