| 主权项 |
1. A gear shift control apparatus for a vehicle, comprising:
an automatic transmission including a plurality of engaging devices configured to transmit rotation and torque between an input shaft that receives power from a drive power source and an output shaft that transmits the power to a drive wheel, the automatic transmission being configured to execute a gear shift by switching between engagement and release of the plurality of engaging devices; and a electronic control unit configured to execute the gear shift of the automatic transmission by using a predetermined gear shift model that determines a control operation amount for obtaining a gear shift target value, the electronic control unit being configured to selectively execute a first gear shift and a second gear shift as the gear shift, the electronic control unit being configured to set the gear shift target value of the first gear shift by using torque on a rotating member on an output shaft side among the engaging devices and a rotation speed variation of a rotating member on an input shaft side among the engaging devices, the electronic control unit being configured to set the control operation amount of the first gear shift by using torque on the rotating member on the input shaft side, a torque capacity of an engaging-side engaging device during the first gear shift, and a torque capacity of a releasing-side engaging device during the first gear shift, the electronic control unit being configured to set a first torque sharing rate of a transmission torque that is shared between the engaging-side engaging device and the releasing-side engaging device during the first gear shift, the electronic control unit being configured to control the gear shift of the automatic transmission during the first gear shift by using the gear shift model including the set gear shift target value of the first gear shift, the set control operation amount of the first gear shift, and the set first torque sharing rate, the electronic control unit being configured to set the gear shift target value of the second gear shift by using only the rotation speed variation of the rotating member on the input shaft side, the electronic control unit being configured to set the control operation amount of the second gear shift by using torque on the rotating member on the input shaft side, a torque capacity of the engaging-side engaging device during the second gear shift, and a torque capacity of the releasing-side engaging device during the second gear shift, the electronic control unit being configured to set a second torque sharing rate of a transmission torque that is shared between the engaging-side engaging device and the releasing-side engaging device during the second gear shift, the electronic control unit being configured to set a gear shift progress torque sharing rate that is a sharing rate of a transmission torque that is shared between the rotating member on the input shaft side and an entirety of the engaging devices during the second gear shift, and the electronic control unit being configured to control the gear shift of the automatic transmission during the second gear shift in a speedier manner than during the first gear shift by using the gear shift model including the set gear shift target value of the second gear shift, the set control operation amount of the second gear shift, the set second torque sharing rate, and the set gear shift progress torque sharing rate. |
