Abstract: A control apparatus for a vehicular power transmitting system including (a) an electrically controlled differential portion which has a differential mechanism and an electric motor operatively connected to a rotary element of the differential mechanism and which is operable to control a differential state between a rotating speed of its input shaft connected to an engine and a rotating speed of its output shaft by controlling an operating state of the electric motor, and (b) a transmission portion which constitutes a part of a power transmitting path and which functions as an automatic transmission portion, the control apparatus including a shifting control portion configured to set a shifting point of the transmission portion, on the basis of a delay of a response of a change of an operating speed of the engine to a change of a required vehicle drive force to be transmitted through the vehicular power transmitting system.

Abstract: A control device of a vehicular driving apparatus is provided, which can restrain an unnecessary rotational change of a first electric motor can be restrained when a shifting in a differential portion and a shifting in a transmission portion are overlapped in shifting periods. Upon executing the shiftings of a differential portion and an automatic transmission portion in the overlapped way in the shifting periods, electric motor rotational change amount restraining means controls the first electric motor to a post-shifting prospected first electric motor rotational speed to restrain a change amount of a first electric motor rotational speed before and after a shifting of a transmission mechanism. Thus, the change amount of the first electric motor rotational speed before and after the shifting of the transmission mechanism is restrained to the minimum, thereby the unnecessary rotational change of the first electric motor can be appropriately restrained.

Abstract: The present invention relates to a control device for a vehicular drive system which properly controls a shift in a transmission portion upon receipt of a shift demand to the transmission portion for precluding a given element of the differential portion 11 from high rotation. For a shift demand to an automatic transmission (20), the transmission portion shift limiting means (86) determines a permissible range in terms of a speed ratio of an automatic transmission (20) in consideration of a rotational speed of a given element of a differential portion (11) for thereby limiting a shifting of the automatic transmission portion (20) based on the permissible range. Thus, when the shift demand to the automatic transmission (20) is present, the given element of the differential portion (11) can be avoided from high rotation.

Abstract: A control device of a vehicular driving apparatus is provided, which can restrain an unnecessary rotational change of a first electric motor can be restrained when a shifting in a differential portion and a shifting in a transmission portion are overlapped in shifting periods. Upon executing the shiftings of a differential portion and an automatic transmission portion 20 in the overlapped way in the shifting periods, electric motor rotational change amount restraining means 86 controls the first electric motor M1 to a post-shifting prospected first electric motor rotational speed NM1P to restrain a change amount of a first electric motor rotational speed NM1 before and after a shifting of a transmission mechanism 10. Thus, the change amount of the first electric motor rotational speed NM1 before and after the shifting of the transmission mechanism 10 is restrained to the minimum, thereby the unnecessary rotational change of the first electric motor M1 can be appropriately restrained.

Abstract: A control apparatus for a vehicular power transmitting system including (a) an electrically controlled differential portion which has a differential mechanism and an electric motor operatively connected to a rotary element of the differential mechanism and which is operable to control a differential state between a rotating speed of its input shaft connected to an engine and a rotating speed of its output shaft by controlling an operating state of the electric motor, and (b) a transmission portion which constitutes a part of a power transmitting path and which functions as an automatic transmission portion, the control apparatus including a shifting control portion configured to set a shifting point of the transmission portion, on the basis of a delay of a response of a change of an operating speed of the engine to a change of a required vehicle drive force to be transmitted through the vehicular power transmitting system.

Abstract: A control apparatus for a vehicular power transmitting system including (a) an electrically controlled differential portion which has a differential mechanism and a first electric motor operatively connected to a rotary element of the differential mechanism and which is operable to control a differential state between a rotating speed of its input shaft connected to a drive power source and a rotating speed of its output shaft by controlling an operating state of the first electric motor, (b) a transmission portion (20) constituting a part of a power transmitting path between the electrically controlled differential portion and a drive wheel of a vehicle, and (c) a second electric motor connected to the power transmitting path, the control apparatus including a feedback control inhibiting portion configured to inhibit a feedback control of the first electric motor according to an operating speed of the second electric motor, upon concurrent shifting actions of the electrically controlled differential portion

Abstract: A vehicular drive system is disclosed as including an electrically operated differential portion (16) disposed in a power transmitting path between an engine (8) and drive wheels (38) for controlling an operating state of an electric motor (M), connected to a rotary element of a differential portion (11), for controlling a differential state between an input-shaft rotation speed and an output-shaft rotation speed, and a shifting portion (20) forming a part of the power transmitting path and functioning as a step-variable automatic shifting portion. A control device (40) performs a control of output torque of the electric motor during a downshift of the step-variable shifting portion so as to suppress a variation in the engine rotation speed. The control of output torque is performed so as to increase the output torque by inertia torque of the electric motor, thereby achieving a reduction in shifting shock.

Abstract: The present invention relates to a control device for a vehicular drive system which properly controls a shift in a transmission portion upon receipt of a shift demand to the transmission portion for precluding a given element of the differential portion 11 from high rotation. For a shift demand to an automatic transmission (20), the transmission portion shift limiting means (86) determines a permissible range in terms of a speed ratio of an automatic transmission (20) in consideration of a rotational speed of a given element of a differential portion (11) for thereby limiting a shifting of the automatic transmission portion (20) based on the permissible range. Thus, when the shift demand to the automatic transmission (20) is present, the given element of the differential portion (11) can be avoided from high rotation.