| 摘要 |
PURPOSE: To prevent the blow-up of an engine and shift quality from being degraded at the time of multiplex gear shifting. CONSTITUTION: This invention is concerned with the control device for an automatic transmission 3, which is equipped with each step of gear shifting to be set by keeping a first friction engagement means 1 in a released condition, or making change-over, and concurrently actuating gear shifting for letting a second friction engagement means 2 to be engaged. The device is equipped with a multiplex gear shifting detection means 4 detecting that gear shifting is judged halfway of gear shifting to each step of gear shifting, which is set by setting the second friction engagement means 2 in a released condition, and with a torque down direction means 5 outputting a torque down direction signal for lowering the output torque of an engine based on the detected result of the multiplex gear shifting detection means 4. Torque to be applied to the second friction engagement means 2 is lowered, and even if engagement force is delayed in increasing, gear shifting is smoothly performed, and the blow-up of the engine and shift quality are prevented from being degraded. |
