| 摘要 |
<P>PROBLEM TO BE SOLVED: To improve the energy efficiency of a device having an internal combustion engine and two motors and an automobile loaded with the device. <P>SOLUTION: In the power output device, a power distribution and integration mechanism 30 consists of a planetary gear P1 and four clutches C1-C4. The clutches C1, C4 are coupled on and the clutches C2, C3 are coupled off according to the traveling condition of an automobile. The engine is driven by switching a connection condition in which the power from an engine 22 is torque-reduced and output to a drive shaft 65 when the number of rotation of a motor MG1 is zero, a connection condition in which the clutches C1-C4 are coupled on and the power distribution and integration mechanism 30 is an integrated rotating body, and a connection condition in which the power from the engine 22 is torque-increased and output to the drive shaft 65 when the number of rotation of the motor MG1 is zero with the clutches C1, C4 being off and the clutches C2, C3 being on. The entire energy efficiency of the automobile can be improved thereby. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
