Controller for vehicle drive unit

摘要

While driving is performed by transmitting the power of an engine 6 through a gear of a second gear group, pre-shifting is performed to a gear of a first gear group, the gear being on a higher speed side than the gear of the second gear group, so that the rotation speed of a motor 7 does not exceed a predetermined rotation speed.

主权项

1. A controller for a vehicle drive unit, comprising:
an internal combustion engine; an electric motor; a differential reduction gear configured so as to be capable of differentially rotating first to third rotational elements with one another; a first input/output shaft connected to the first rotational element of the differential reduction gear and selectively connected to the internal combustion engine through a first engaging/disengaging device; a second input/output shaft selectively connected to the internal combustion engine through a second engaging/disengaging device; an output/input shaft disposed so that power can be transmitted from the first input/output shaft and the second input/output shaft, wherein: the electric motor is directly connected to the first input/output shaft, thereby the electric motor is connected to the first rotational element; a first gear group has a plurality of gears selectable using a first synchronizing device, wherein the first synchronizing device is arranged on the first input/output shaft; a second gear group has a plurality of gears selectable using a second synchronizing device, wherein the second synchronizing device is arranged on the second input/output shaft; after the engagement of the first engaging/disengaging device and during driving through one gear of the plurality of gears of the first gear group selected by the first synchronizing device, driving can be performed using one gear of the plurality of gears of the second gear group selected by the second synchronizing device by changing the engagement states of the first engaging/disengaging device and the second engaging/disengaging device, and while driving is performed by transmitting power of the internal combustion engine to the output/input shaft through the one gear of the plurality of gears of the second gear group, pre-shifting is performed to one gear of the plurality of gears of the first gear group, the one gear of the plurality of gears of the first gear group being on a higher speed side than the one gear of the plurality of gears of the second gear group, so that a rotation speed of the electric motor does not exceed a predetermined rotation speed.