Patent ID: 9410620
Filing Date: 2016-08-09
CPC Classification: F16H

Claim Text:
1. A transmission shifting control apparatus for a vehicle including an automatic transmission which comprises a plurality of coupling devices for transmitting a rotary motion and a torque between an input shaft provided to receive a drive force from a drive power source and an output shaft provided to transmit the drive force to drive wheels, and which is configured to be shifted with concurrently performed engaging and releasing actions of the respective coupling devices, said control apparatus being configured to implement a shifting control of said automatic transmission according to a predetermined shifting model for determining manipulated amounts to establish shifting target values, the control apparatus comprising: a shifting target value calculating portion configured to set, as said shifting target values, a torque of a rotary member disposed on the side of said output shaft, and a rate of change of a rotating speed of a rotary member disposed on the side of said input shaft; a manipulated amount calculating portion configured to set, as said manipulated amounts, a torque of the rotary member disposed on the side of said input shaft, a torque capacity of one of the coupling devices which is to be engaged for a shifting action of said automatic transmission, and a torque capacity of the other of the coupling devices which is to be released for the shifting action; and a torque assignment ratio calculating portion configured to set torque assignment ratios which are ratios of torques to be transferred through the respective coupling devices to be engaged and released for the shifting action, and when a second shifting action of the automatic transmission is required to be performed, during a preceding first shifting action according to a first shifting model, said manipulated amount calculating portion switching said first shifting model corresponding to said first shifting action to a second shifting model corresponding to said second shifting action, to implement a shifting control of the automatic transmission for performing said second shifting action according to said second shifting model.