Abstract: A control system, more particularly for the electric motors driving a vehicle for the disabled, comprising a control member for delivering a required speed signal which varies linearly with the position of the control member, a feed back control circuit for each motor, a power supply for the motor and the control circuits, the linear speed signal is compared with a signal selected, on the basis of the instantaneous speed of the motor, to form a number of signal which are stored in a memory, and for forming a control signal which does not vary linearly with the speed signal. The control signal is fed to the motor control circuit to keep the rotation of the motor constant.