| 摘要 |
In a hybrid vehicle, first, an engine is locked by an engine shaft locking mechanism. A first motor is connected to a first inverter circuit and a second motor is connected to a second inverter circuit and then both the motors are operated, and the output characteristics of each motor are obtained. Further, the first motor is connected to the second inverter circuit and the second motor is connected to the first inverter circuit and then both the motors are operated, and the output characteristics of each motor are obtained. Based on the obtained output characteristics, it is determined whether each of the motors and the inverter circuits is normal or not.
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