A new energy automotive electric drive system

The present invention discloses an electric drive system for a new energy vehicles, comprising a non-isolated full-bridge DC-DC converters, respectively, and the non-isolated low voltage battery LV full-bridge DC-DC converter is connected, the converter controller , HV high voltage battery and the motor driver, and a drive controller and a three-phase AC motor connected with the drive motor; HV of the high voltage battery is also connected to the motor drive, the non-isolated full-bridge DC-DC converter dotted terminal (a) isolated from the high pressure side of the transformer is connected to the neutral point of the three-phase alternating current motor windings O. The present invention is new energy vehicles electric drive system, a large space can overcome the prior art, the high cost and low efficiency of energy conversion defects, to achieve a small footprint, low costs and high energy conversion efficiency advantages.