| 摘要 |
<P>PROBLEM TO BE SOLVED: To more certainly perform specification of a part where decrease of the insulation resistance is caused. <P>SOLUTION: After decrease of insulation resistance in an electric system is detected (S210), the part where the decrease in the insulation resistance is caused is specified based on the voltage waveform from the voltage waveform output circuit when the following travelings are performed respectively: traveling in a direct travel mode (S240) in which a system main relay is turned on, a second inverter operates the engine in the state where the inverter is gate intercepted, and traveling is performed by driving force based on requested torque Tr* by driving a first motor; traveling in an electric traveling mode (S260) in which the system main relay is turned on, operation of the engine is stopped and the first inverter operates the second motor in the state where the inverter is gate intercepted, and traveling is performed by the requested torque Tr*; and traveling in a batteryless traveling mode (S280) in which traveling is performed by operating the engine, driving the first motor and the second motor and traveling is performed by requested torque Tr* in the range of the withstand voltage of a capacitor without charging or discharging the battery. <P>COPYRIGHT: (C)2013,JPO&INPIT |
