| 摘要 |
PROBLEM TO BE SOLVED: To prevent a transmission input rotational frequency from being excessive in up-shifting by cooperative control of an auxiliary transmission mechanism and a variator.SOLUTION: As a transmission 4, a variator 20 and an auxiliary transmission mechanism 30 disposed in series to the variator 20 are disposed. A control device of a continuously variable transmission with the auxiliary transmission, is provided with up-shifting cooperative control means (fig. 5) to achieve up-shifting as a through gear change ratio by implementing cooperative control to start re-engagement up-shifting of the auxiliary transmission mechanism 30, and to implement down-shifting of the variator 20 in synchronization with the up-shifting of the auxiliary transmission mechanism 30, when up-shifting of 1→2 is requested. When an inertia phase is started in the re-engagement up-shifting of the auxiliary transmission mechanism 30, a gear change ratio of the variator 20 is fixed until the advance of the actual gear change ratio to an up-shifting side is confirmed, and when the advance of the actual gear change ratio to the up-shifting side is confirmed, down-shifting by the variator 20 is started.SELECTED DRAWING: Figure 5 |
