Patent ID: 8246512
Filing Date: 2012-08-21
Classification: B60K,B60L,B60W,B60Y,F16H,Y02T,Y10T

Abstract:
1. A control device for a vehicular power transmitting device for automatically performing a gear shifting depending on a driving condition of a vehicle, wherein an internal combustion engine generating a torque is connected to the vehicular power transmitting device in a power transmissive state; the control device includes downshift point altering means operative, when the torque generated by the internal combustion engine with using a fuel other than a predetermined fuel becomes greater than a torque generated with using the predetermined fuel, to initiate a downshift at a lower accelerator-opening than that at which the downshift is initiated with using the predetermined fuel; the vehicular power transmitting device includes an electrically controlled differential portion, operative to control a differential state between a rotation speed of an input shaft and a rotation speed of an output shaft upon controlling an operating state of an electric motor connected to a rotary element of a differential mechanism, and a step-variable transmission portion, operative to function as step-variable shifting portion, both the electrically controlled differential portion and the step-variable transmission portion being disposed in a power transmitting path; and the torque generated by the internal combustion engine is detected based on reactive torque of the electric motor.