| 主权项 |
1. A control device for a vehicle drive device in which a disconnecting engagement device, a rotating electrical machine, and a speed change mechanism are provided in this order from an internal combustion engine toward wheels on a power transmission path connecting the internal combustion engine and the wheels, and in which the speed change mechanism is capable of switching between or among a plurality of shift speeds by controlling an engagement state of each of a plurality of shift engagement devices included in the speed change mechanism, comprising:
a start control section that executes internal combustion engine start control of bringing the disconnecting engagement device from a disengaged state to a direct-coupling engaged state and starting the internal combustion engine in a stopped state; a start slip control section that executes start slip control of bringing one of the plurality of shift engagement devices into a slip engaged state at least when the disconnecting engagement device is direct-coupling engaged in the internal combustion engine start control; and an intended engagement device deciding section that decides as an intended engagement device the shift engagement device to be brought into the slip engaged state in the start slip control, wherein the intended engagement device deciding section operates based on a set determination speed so that when a vehicle speed is equal to or higher than the determination speed, the intended engagement device deciding section decides as the intended engagement device a normally disengaged engagement device that is the shift engagement device having been in the direct-coupling engaged state in order to form a reference shift speed at start of the start slip control, and that is disengaged when a transition is made from the reference shift speed to a predetermined specific shift speed, and when the vehicle speed is lower than the determination speed, the intended engagement device deciding section decides as the intended engagement device a special engagement device that is the shift engagement device having been in the direct-coupling engaged state in order to form the reference shift speed, and that is disengaged when a transition is made to a special shift speed on an opposite side of the specific shift speed from the reference shift speed in order of speed ratios of the plurality of shift speeds. |
