| 摘要 |
PROBLEM TO BE SOLVED: To provide a vehicle in which a first battery and a second battery are connected to a driving device in parallel with each other through a first converter and a second converter respectively, which can increase chances for reducing switching loss of the converters while preventing excess currents.SOLUTION: In a vehicle in which a first battery and a second battery are connected to a driving device in parallel with each other through a first converter and a second converter respectively, an ECU, when requested to execute upper arm ON control for maintaining the first converter in an upper arm ON state, decreases gradually a system voltage VH (a boosted voltage of the first converter) from an initial voltage Vlim so as to determine whether or not currents flow to the second battery; and when the currents do not flow to the second battery and the system voltage VH falls below a sensor value of a voltage VL1 inputted from the first battery to the first converter, executes the upper arm ON control.SELECTED DRAWING: Figure 2 |
