| 摘要 |
PROBLEM TO BE SOLVED: To stop a vehicle and discharge charges from a capacitor (lower voltage) when the lower arm of a boost converter is fixed ON.SOLUTION: When the lower arm of a boost converter is fixed ON, an upper arm is turned ON (S100), and then when the voltage VH of a high-pressure side capacitor reaches a threshold voltage VHref or more (S120), the upper arm is turned ON (S130). Then, when the voltage VH of the high-pressure side capacitor becomes equal to the voltage VL of a low-pressure side capacitor (S150), a system main relay is turned OFF (S160), and the transistor of an inverter is controlled so as to regeneratively drive a motor MG 2 and supply d-axis current to a motor MG 1 (S170).SELECTED DRAWING: Figure 3 |
