A robotic vehicle including a chassis having front and rear ends, an
electric power source supported by the chassis, and multiple drive
assemblies supporting the chassis. Each drive assembly including a track
trained about a corresponding drive wheel and a drive control module. The
drive control module including a drive control housing, a drive motor
carried by the drive control housing and operable to drive the track, and
a drive motor controller in communication with the drive motor. The drive
motor controller including a signal processor and an amplifier commutator
in communication with the drive motor and the signal processor and is
capable of delivering both amplified and reduced power to the drive motor
from the power source. In one instance, the drive control module is
separately and independently removable from a receptacle of the chassis
as a complete unit.