TRACTION SYSTEM OF ELECTRIC VEHICLE Russian patent published in 2019 - IPC B60L50/60 B60L15/20 H02P31/00 H02K31/02 

FIELD: machine building.

SUBSTANCE: invention relates to the vehicles electrical traction systems. Traction system of electric vehicle comprises accumulator battery and DC to AC converter. Power transformer of the voltage converter has a multi-lead secondary winding with N equidistant in voltage distributed leads relative to the common terminal, connected one by one through bidirectional thyristors or a pair of anti-parallel connected thyristors, controlled from electronic unit, to rectifier with filter. Output of rectifier with filter is connected to brushless DC motor with sliding contacts. Electronic unit comprises an analogue-to-digital converter with a reference voltage source with a precision potentiometer connected to it, which changes the input control voltage supplied to the input of the analogue-to-digital converter. Engine of precision potentiometer is mechanically connected with accelerator pedal. Output of the analogue-to-digital converter is connected to the decoder outputs, to which thyristor optocouplers are connected, which control switching on the corresponding bidirectional thyristors or pairs of anti-parallel connected thyristors.

EFFECT: technical result consists in improvement of reliability of traction system of electric vehicle.

1 cl, 5 dwg