| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a motor driving system of a hybrid vehicle in which a high voltage stored in a DC link capacitor is discharged by an electrical load during the failure of a voltage converter, and a failure control method used in the same. <P>SOLUTION: The motor driving system of the hybrid vehicle includes a first and second motors for driving the vehicle, first and second inverters for controlling the driving of the first and second motors, a battery for a DC power supply, the voltage converter for increasing or decreasing a DC voltage from the battery for the DC power supply to supply the voltage by the first and second inverters or decreasing or increasing the DC voltage from the first or the second inverter to supply the voltage to the battery side for the DC power supply, first and second main relays between the battery for the DC power supply and the voltage converter, a DC converter connected between the voltage converter and the first and second inverters so that the high voltage energy of the DC link capacitor may be discharged, and the electrical load connected to the DC converter. <P>COPYRIGHT: (C)2011,JPO&INPIT |
