| 摘要 |
PURPOSE:To improve the vehicle vibration suppressing performance in idle revolution by averting the increase of the dimension and weight of a power generation motor and suppressing the reduction of the power generation voltage utilization rate of the power generation motor. CONSTITUTION:The semiconductor switches S1-S6 of an inverter circuit 4 are controlled by a controller and opened and closed in synchronization with the number of engine revolution (angular speed) in the engine torque assistance, and a three-phase power generation motor 2 for vehicle is put into the motor drive operation, and the shortage of the engine torque is eliminated. Further, in the excessive engine torque state, the power generation voltage is rectified by an inverter circuit 4 and electric-charges a battery 8, and the excessive engine torque state is eliminated. The semiconductor switches S4-S6 short- circuits the armature coils 91-93 of the power generation motor at least in the initial stage of the power generation operation period during the idle revolution of the engine, and in the posoterior stage of the power generation period, the short circuit is completed. When the short circuit of the armature coils 91-93 is cut off, a high voltage is generated at the end part of the armature coil, and the battery 8 can be electric-charged even in the idle revolution. |
