| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a control device of an automatic transmission with an auxiliary transmission capable of preventing shock from occurring by the abrupt lock of a one-way clutch during re-acceleration from coast. <P>SOLUTION: In this control device, an engine 1, the auxiliary transmission 20, main transmissions 2, 4, and drive wheels are connected to each other in this order. The auxiliary transmission 20 comprises at least a high-speed stage and a low-speed stage. The main transmissions 2, 4 comprises advancing clutches engaged when torque is transmitted to the drive wheels. When the auxiliary transmission selects the low-speed stage, the one-way clutch 25 is locked when a torque transmission direction is changed from a power source to the drive wheels and the one-way clutch 25 is released when the torque transmission direction is changed from the drive wheels to the power source. The control device further comprises a re-acceleration advancing clutch control means which, when a re-acceleration is performed while an accelerator is returned when the one-way clutch 25 is released when the auxiliary transmission selects the low-speed stage, slippingly engages the advancing clutch before or after the one-way clutch 25 is locked. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
