| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a vehicle system which not only charges secondary batteries fully but also prevents the batteries from being erroneously determined that overcharge failure occurs after the system starting up (after the batteries are charged), due to the detection error of sensors. <P>SOLUTION: At first starting of the system after high voltage batteries are charged to reach a level that is fully charged voltage Vb*, (S210), taking into consideration a power input/output to or from a motor due to control error and a power consumption of whole auxiliary units while a zero-torque control that controls the motor so as not to output torque from the motor is performed, and defining a required time tre as the time taken until a voltage of each cell of high voltage batteries reaches a value less than a lower limit threshold by the maximum voltage of the detection error of the over-voltage sensor lower than an over-voltage determination voltage Vsref, and then until the operation time runs beyond the required time tre after the system starting up, the determination of the overcharge failure for the high voltage batteries is not performed even when an over-voltage determination signal Vo from the over-voltage sensor is on, (S250-S350). <P>COPYRIGHT: (C)2012,JPO&INPIT |
