Electric vehicle control system (1, 4, 5) comprising a drive
control system (50, 52) and controlling the movement of an
electric vehicle by means of the drive
control system (50, 52), wherein the drive control
system (50, 52) comprises a plurality of induction motors (2), exactly one
inverter (1) for driving the plurality of induction motors (2), a current
detector (5) for detecting a
total current which is a sum of motor currents flowing to the induction motors (2), and a controller (4) for controlling the
inverter (1) on the basis of a current command value calculated on the basis of a torque command value, a
voltage command value calculated on the basis of the detected
total current, and an estimated speed value calculated on the basis of the calculated
voltage command value and the detected
total current, wherein the control (4) has: a
clutch disconnection detection unit (40) for calculating an estimated torque value based on the total current and
voltage command value and for detecting a disconnection of a
clutch provided between the induction motors (2) and a drive mechanism (53, 54, 55, 56, 57) of the
electric vehicle, based on the calculated estimated torque value and the torque command value.