Patent ID: 6997843

Claim:
In a shift control apparatus for an automatic transmission provided with a shift control means to achieve a plurality of forward speeds by the control of engagement and disengagement of a plurality of friction elements participating in the shift of the automatic transmission, the automatic transmission shift control apparatus comprising: a dual changeover shift judging means making a judgment about a shift from an Nth speed achieved by bringing a first friction element and a second friction element at least into an engagement state, to an (N-α)th speed which is achieved by bringing at least the first friction element and the second friction element into a release state and engaging a third friction element and a fourth friction element, and which has at least one intermediate shift speed between the Nth speed and the (N-α)th speed, achieved by engaging the second friction element and the third friction element; a jump shift control means achieving the shift from the Nth speed to the (N-α)th speed, by releasing the first friction element and engaging the fourth friction element at least at the time of judgment of dual changeover shift, decreasing an engagement force of the second friction element before a gear ratio reaches a gear ratio corresponding to the intermediate shift speed, and releasing the second friction element and engaging the third friction element at least after passage of the gear ratio through the gear ratio corresponding to the intermediate shift speed; a target shift speed change inhibiting means which makes a judgement to inhibit a target shift speed from being changed from the (N-α)th speed at a predetermined timing after a start of the shift from the Nth speed to the (N-α)th speed until an end of the shift control; and a target shift speed change permitting means rechecking a driver's shift intention when the gear ratio reaches the gear ratio corresponding to the intermediate shift speed, and permitting the target shift speed to be changed to a shift speed corresponding the driver's intention when the target shift speed differs from the (N-α)th speed, even if the change of the target speed is inhibited.