| 摘要 |
<P>PROBLEM TO BE SOLVED: To secure controllability in a good condition in a control device of a transmission system for vehicle equipped with an electric differential section and gear change section even if it becomes a situation that operational area of a motor is restricted. <P>SOLUTION: The transmission system for vehicle includes: an electric type differential section 20 which has a power distribution mechanism 21 capable of differential operation, a first motor MG 1 and second motor MG 2; an engine 10 connected with an input shaft 11 of the electric differential section 20; and a mechanical gear change section 30 which constitutes a part of the power transmission path. When the operational area of the first motor MG 1 is restricted, a gear change point of the mechanical gear change section 30 is changed to a low vehicle speed side. Thereby, the controllability is secured in a good condition by making gear change operation in the mechanical gear change section 30 performed before revolution speed of the first motor MG 1 reaches to outside of the operational area, and avoiding the situation that the first motor MG 1 drive should be driven out of the operational area. <P>COPYRIGHT: (C)2009,JPO&INPIT |
