| 摘要 |
PURPOSE: To supply appropriate oil pressure to a friction engaging element at the time of speed change by setting the first target gradient and second target gradient of target input shaft rotating speed, and correcting liquid pressure corresponding to the torque capacity of the friction engaging element in correspondence with the difference between the first target gradient and second target gradient. CONSTITUTION: When a speed change command S12 is provided, initial oil pressure DPL0 is outputted. The input shaft rotating speed Nt is then actually lowered, and the target input shaft rotating speed Ntr is outputted at the gradient of dNtr1 from the start point (d) of speed change behavior and feedback- controlled. From the start of speed change to a point (e), FB compensating oil pressure DFB is outputted so as to follow a first gradient dNtr1 and feedback-controlled. Upon reaching the point (e), the FB compensating oil pressure DFB is outputted so as to follow a second gradient dNtr2 . The correction quantity DX corresponding to the difference between the first gradient dNtr1 and second gradient dNtr2 is added to the output DFB for correction. |
