VEHICLE ELECTRIC TRACTION DRIVE Russian patent published in 2017 - IPC B60L11/06 B61C5/00 

FIELD: physics, instrument-making.

SUBSTANCE: invention relates to vehicle electric traction drives. A vehicle electric traction drive comprises dc traction motors, connected to the output of a voltage converter. The exciting coil of the electric motors is connected in parallel to an exciting current controller made in form of series-connected capacitor and resistor. The voltage converter consists of two rectifiers, inputs of which are connected to separate generators, mechanically coupled with thermal engines. Control inputs of the thermal engines, for controlling excitation of generators and the control circuit of the contactor of the exciting current controller are connected to corresponding outputs of the controller. Armature windings and exciting coils of the electric motors are respectively connected in series. The lead of the armature winding of the first electric motor is connected to the positive terminal of the first rectifier. The lead of the exciting coil of the second electric motor is connected to the negative terminal of the second rectifier. The negative terminal of the first rectifier is connected to the positive terminal of the second rectifier. The lead of the armature winding of the second electric motor is connected to the lead of the exciting coil of the first electric motor.

EFFECT: invention improves efficiency of the electric traction drive.

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