Energy-saving driving device for electric vehicle

The energy-saving electric vehicle drive equipment is formed from accumulator, energy two-directional flowing DC/DC converter, variable-frequency speed-regulating DC/AC inverter, asynchronous motor and control unit. The accumulator is used for supplying power for energy two-directional flowing DC/DC converter circuit consisting of power electronic switches Sr and Sm, high-frequency inductor L andfilter capacitor C, and said DC/AC converter can be used for receiving control instruction of control unit to boost and supply the power for DC/AC variable-frequency speed-regulating inverter, said inverte can receive the control instruction of control unit to convert the D.C. into A.C. which can be provided for asynchronous motor to drive the electric vehicle.