Patent ID: 7384375

Claim:
A control apparatus for an automatic transmission comprising an input shaft receiving a rotational force transmitted from a driving source, a speed change mechanism transmitting the rotation of said input shaft to an output shaft with a changed speed, and a plurality of frictional engaging elements provided for a plurality of gear positions of said speed change mechanism, wherein said control apparatus sets a target gear position according to a gear shift request and controls fluid pressure applied to respective frictional engaging elements, and said control apparatus performs a charge control for charging hydraulic fluid to a predetermined frictional engaging element and/or a drain control for discharging hydraulic fluid from said predetermined frictional engaging element, thereby selectively engaging and disengaging respective frictional engaging elements to complete a shifting operation of gear position for said speed change mechanism, wherein said control apparatus comprises: multi-stage gear shifting control means for receiving a new gear shift request different from a just previous request and which requires a multi-stage gear shifting control to shift said speed change mechanism to a new and different target gear position in response to said new gear shift request; charged condition judging means for determining a state of hydraulic fluid charge for a to-be-newly-charged frictional engaging element to which the charge control is to be applied in response to said new and different target gear position; and multi-stage gear shift restricting means for restricting said new and different target gear position in response to the state of hydraulic fluid charge determined by said charged condition judging means.