Patent Document ID: 20080234914
Application ID: 12073963
Patent Flag: 0

Claim One:
1. A control apparatus for a vehicular drive system including (a) an electrically controlled differential portion having an input shaft, an output shaft, a differential mechanism, and an electric motor which is operatively connected to a rotary element of the differential mechanism and an operating state of which is controlled to control a differential state between rotating speeds of the input and output shafts, and (b) a transmission portion which constitutes a part of a power transmitting path between the differential portion and a drive wheel of a vehicle, said control apparatus comprising (i) a differential-state switching portion configured to switch the differential portion between a differential state in which the differential portion is operable to perform a differential function, and a non-differential state in which the differential portion is not operable to perform the differential function, (ii) a shifting control portion configured to control a shifting action of the transmission portion, and (iii) a learning control portion configured to effect learning compensation of a control amount of a control element to be controlled during the shifting action of the transmission portion, wherein an improvement comprises: said learning control portion including a differential-state learning control portion operable to implement the learning compensation of the control amount of the control element when the shifting action of the transmission portion takes place in the differential state of the electrically controlled differential portion, and a non-differential-state learning control portion operable to implement the learning compensation of the control amount when the shifting action takes place in the non-differential state of the electrically controlled differential portion; and said shifting control portion being configured to control the shifting action of the transmission portion in a presently selected one of the differential and non-differential states of the electrically controlled differential portion, on the basis of the learning compensation which has been implemented by one of said differential-state and non-differential-state learning control portions which is operable in the other of the differential and non-differential states of the electrically controlled differential portion.