Patent ID: 9290105
Filing Date: 2016-03-22
CPC Classification: B60L,H02J,H04B,Y02E,Y02T,Y04S

Claim Text:
1. An active discharging system for an electric vehicle, comprising: a power battery; a bus capacitor; a charge-discharge socket; a bidirectional DC/DC module having a first DC terminal connected with a first terminal of the power battery and a second DC terminal connected with a second terminal of the power battery, wherein the first DC terminal of the bidirectional DC/DC module is a common DC terminal for an input to and an output from the bidirectional DC/DC module; a driving control switch having a first terminal connected with the second terminal of the power battery and a second terminal connected with a third DC terminal of the bidirectional DC/DC module; a bidirectional DC/AC module having a first DC terminal connected with the second terminal of the driving control switch and a second DC terminal connected with the first terminal of the power battery; a motor control switch having a first terminal connected with an AC terminal of the bidirectional DC/AC module and a second terminal connected with a motor; a charge-discharge control module having a first terminal connected with the AC terminal of the bidirectional DC/AC module and a second terminal connected with the charge-discharge socket; and a controller module connected with the driving control switch, the motor control switch and the charge-discharge control module respectively, and configured to control the driving control switch, the motor control switch and the charge-discharge control module according to a current operation mode of the active discharging system, to control the bus capacitor to continue charging the power battery after a charge is finished, and to control the bus capacitor to continue discharging after a discharge is finished until a voltage across the bus capacitor is less than a first predetermined value.