Control device for vehicle and control method for vehicle

A control device for a vehicle,

• the vehicle including an engine, driving wheels, and an automatic transmission, the automatic transmission including a planetary gear mechanism and being disposed in a power transmission path between the engine and the driving wheels, the automatic transmission being configured to establish a shift stage of a plurality of shift stages by selectively engaging a plurality of frictional engagement elements with each other,
• the plurality of frictional engagement elements including an engagement maintaining element, the engagement maintaining element being configured to transmit power from the engine to the planetary gear mechanism by engagement,
• the control device comprising
• an electronic control unit configured to perform intermediate gear shift control when the electronic control unit determines that gear shift control for the automatic transmission is required and there is a shift stage difference of two or more stages between a current shift stage and a required shift stage,
• the required shift stage being a shift stage that is required depending on driving conditions of the vehicle,
• the intermediate gear shift control being control to perform a gear shift via an intermediate shift stage,
• the intermediate shift stage being a shift stage between the current shift stage and the required shift stage,
• the electronic control unit being configured to perform torque phase control to replace a disengagement-side element and an engagement-side element of the plurality of frictional engagement elements at the time of a gear shift;
• and
• the electronic control unit being configured to perform the torque phase control in a first predetermined torque phase control time on at least one gear shift of predetermined gear shifts when the electronic control unit determines that input switching control is to be performed in the intermediate gear shift control,
• the predetermined gear shifts being gear shifts in which a gear shift direction from the intermediate shift stage to a predetermined shift stage is a direction in which progress of the gear shift is promoted,
• the first predetermined torque phase control time being shorter than a second predetermined torque phase control time,
• the second predetermined torque phase control time being a torque phase control time that is set for a gear shift in which a gear shift direction from the intermediate shift stage to the predetermined shift stage is a direction in which progress of the gear shift is not promoted,
• the torque phase control time being an execution time of the torque phase control at the time of passing through the intermediate shift stage,
• the predetermined shift stage being a shift stage which is set when a first frictional engagement element and a second frictional engagement element engage,
• the first frictional engagement element being a frictional engagement element which is disengaged at the time of a gear shift to the intermediate shift stage,
• the second frictional engagement element being a frictional engagement element which is the engagement maintaining element in an engaged state in a target shift stage after the intermediate shift stage,
• the input switching control being a control of switching the engagement maintaining element at the time of passing through the intermediate shift stage.