| 摘要 |
<P>PROBLEM TO BE SOLVED: To more properly prevent back electromotive force generated in a second motor when traveling by outputting motive power only to a front wheel side, from flowing through power lines of first and second motors, in a vehicle having the first motor and an engine outputting the motive power to front wheels, the second motor outputting motive power to rear wheels, and a battery for exchanging power with the first and second motors through a booster circuit. <P>SOLUTION: A prescribed vehicle speed V1 or a prescribed vehicle speed V2 is set as a reference vehicle speed Vref on the basis of whether the booster circuit is normal (S230-S250). When an inverter driving the second motor is normal (S260), the inverter diving the second motor is gate shut off when a vehicle speed V is less than the reference vehicle speed Vref (S270, S280), and the inverter is controlled such that a torque of a value 0 is outputted from the second motor when the vehicle speed V is not less than the reference vehicle speed Vref (S270, S290). <P>COPYRIGHT: (C)2007,JPO&INPIT |
