Electric vehicles and active relief systems for electric vehicles

The present invention provides active relief system for an electric vehicle, comprising: a battery; bus capacitance; charge-discharge socket; Bidirectional DC / DC module; driving control switch; bidirectional DC / AC module; motor control switch; charge-discharge control module; a controller module, the controller module and the drive control switch, the motor control switch and a charge-discharge control module is connected, the controller module according to the currently active operating mode in which the bleed system of the said drive control switch, the motor control switch and a charge-discharge control module controls. The bleed system can be implemented using active civil or industrial power to AC power AC electric vehicle charging, so that the user can at any time efficient, fast charging, the battery operating voltage and applicable to a wide range, saving space and cost. The present invention also provides an electric car.