| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a hybrid vehicle driving device capable of preventing degradation of the power transmission efficiency. <P>SOLUTION: In the hybrid vehicle driving device, an internal combustion engine is connected to an input element of a power distribution mechanism, a first motor/generator 2 is connected to a reaction force element of the power distribution mechanism, and a second motor/generator 3 is connected to an output element of the power distribution mechanism. The hybrid vehicle driving device comprises clutches C1 and C2 to selectively change an output member to the output element or the reaction force element, and further comprises a driving force source state determination means (Step S4 to S6) to determine whether or not the motors/generators 2 and 3 are power-driven state by the negative rotation, and a changing mechanism control means (Step S7 to S12) to change the changing mechanism so that the reaction force element is connected to the output element when it is determined that the motors/generators 2 and 3 are in a power-driven state by the negative rotation. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
