| abstract |
An object of the present invention is to suppress overdischarge of a power storage device. When the engine is operated at a target operating point (target rotational speed Ne * and target torque Te *), the power output from the engine exceeds an allowable range for the power corresponding to the target operating point corresponding to the target operating point. When the output is decreasing (S240), the control lower limit voltage Vbmin * is set to a predetermined voltage V2 higher than the predetermined voltage V1 (S270). When the inter-terminal voltage Vb is less than the control lower limit voltage Vbmin * (S290), the engine is operated at the target operating point, the required torque Tr * is output to the drive shaft, and the inter-terminal voltage Vb becomes the control lower limit voltage Vbmin. * The engine and the two motors are controlled so as to be above (310 to S370). Thereby, even when the output is reduced, overdischarge of the battery can be suppressed. [Selection] Figure 4 |