A motor electric propulsion system for anti moving is not on a rail, and in particular for motor vehicle, 2004.

摘要

A drive by means of an electric motor for trackless vehicles, in which the rotational speed adjustment takes place by changing the field energization of the electric motor, and with a separating clutch connected behind the motor as well as a changespeed transmission having at least two speeds in the forward driving direction. An energizing current controller for the field winding is provided whose energizing current-desired value is predetermined by another current controller to which are fed, on the one hand, the actual value of the armature current and, on the other, a desired value which is determined by the drive and/or brake pedal when the separating clutch is not actuated, and which is automatically determined by a synchronizing controller or is set to zero during the actuation of the separating clutch. A relay is provided for effecting short-circuiting of the armature when the ignition is turned off and monitoring devices are provided for monitoring operating conditions of the motor and influencing the motor or providing an indication in accordance with the monitored conditions.