Patent ID: 8265840

Claim:
A control device for a vehicular automatic transmission of the type operative to initiate an upshifting output to allow a vehicle speed to pass across a predetermined shift point during a power on running, and to correct the shift point such that an estimated maximum engine rotation speed which is a maximum value of an engine rotation speed, increasing for a given time interval even after the upshifting output, approaches a target maximum engine rotation speed, the control device (i) correcting the shift point such that an estimated maximum engine rotation numbers calculated based on an engine rotation acceleration related value at a shifting output timing approaches to a target maximum engine rotation numbers, and (ii) comprising a shift point real-time modifying unit that operates such that, upon a high fluctuation in the engine-rotation acceleration related value itself a correction of the shift point is lower than that of the shift point upon a low fluctuation in the engine-rotation acceleration related value.