초록 ▼

A power output apparatus 20 implements a smooth switching between the connection of a rotor-rotating shaft 38 of an assist motor 40 with a crankshaft 56 of an engine 50 and the connection of the rotor-rotating shaft 38 of the assist motor 40 with a drive shaft 22, and enables the power output from t

A power output apparatus 20 implements a smooth switching between the connection of a rotor-rotating shaft 38 of an assist motor 40 with a crankshaft 56 of an engine 50 and the connection of the rotor-rotating shaft 38 of the assist motor 40 with a drive shaft 22, and enables the power output from the engine 50 to be output to the drive shaft 22 with a high efficiency. The power output from the engine 50 is converted to a desired power by a clutch motor 30 having rotors 31 and 33 respectively linked with the crankshaft 56 and the drive shaft 22 and by the assist motor 40 connected to either the crankshaft 56 or the drive shaft 22 via a first clutch 45 and a second clutch 46, and is output to the drive shaft 22. The connection of the assist motor 40 is switched in the state where both the clutches 45 and 46 are set in ON position, when the revolving speed of the engine 50 is made coincident with the revolving speed of the drive shaft 22. This effectively reduces a variation in torque output to the drive shaft 22 in the course of the switching operation and enables the power to be output to the drive shaft 22 even in the course of the switching operation.

대표청구항 ▼

[ What is claimed is:] [1.] A power output apparatus for outputting power to a drive shaft, said power output apparatus comprising:an engine having an output shaft for outputting power of said engine as a rotational motion;a first motor having a first rotor and a second rotor, which are electromagne

[ What is claimed is:] [1.] A power output apparatus for outputting power to a drive shaft, said power output apparatus comprising:an engine having an output shaft for outputting power of said engine as a rotational motion;a first motor having a first rotor and a second rotor, which are electromagnetically connected with each other and rotatable relative to each other, said first rotor being linked with said output shaft and said second rotor being linked with said drive shaft;a first electric power control circuit being connected with said first motor to enable electric power to be transmitted between said first motor and said first electric power control circuit, the transmitted electric power balancing power input to and output from said output shaft and said drive shaft;a second motor having a rotating shaft;a second electric power control circuit being connected with said second motor to enable electric power to be transmitted between said second motor and said second electric power control circuit;a first connection mechanism for connecting said rotating shaft with said output shaft and disconnecting said rotating shaft from said output shaft;a second connection mechanism for connecting said rotating shaft with said drive shaft and disconnecting said rotating shaft from said drive shaft;a state detection sensor for detecting rotating states of said output shaft and said drive shaft; anda switching control unit for driving said first connection mechanism and said second connection mechanism and carrying out an exclusive switching between said first connection mechanism and said second connection mechanism, so as to cause either of said connection mechanisms to be in a connecting state, based on the rotating states of said output shaft and said drive shaft detected by said state detection sensor.