Control device for vehicle drive device
First Claim
1. A control apparatus for a vehicular drive system provided with a transmission mechanism constituted by a continuously-variable transmission portion operable as an electrically controlled continuously variable transmission, and a transmission portion, said continuously-variable transmission portion having a differential mechanism operable to distribute an output of an engine to a first electric motor and a power transmitting member, and a second electric motor disposed in a power transmitting path between the power transmitting member and a drive wheel of a vehicle, said transmission portion constituting a part of said power transmitting path, said control apparatus comprising:
- a differential-state switching device provided in said differential mechanism and operable to place said continuously-variable transmission portion in a selected one of a continuously-variable shifting state in which said continuously-variable transmission portion is operable as said electrically controlled continuously variable transmission portion, and a non-continuously-variable shifting state in which the continuously-variable transmission portion is not operable as the electrically controlled continuously variable transmission; and
shifting control means for changing a manner of controlling a shifting action of said transmission mechanism during a shifting action of said transmission portion, depending upon whether the differential-state switching device places said continuously-variable transmission portion in said continuously-variable shifting state or in said non-continuously-variable shifting state,wherein said shifting control means positively changes a speed of said engine during the shifting action of said transmission portion, in said non-continuously-variable shifting state of said continuously-variable transmission portion, by using said first electric motor and/or said second electric motor.
1 Assignment
0 Petitions
Accused Products
Abstract
A control apparatus for a vehicular drive system including a differential mechanism including an electric motor. The drive system includes a switching clutch and switching brake to switch the transmission mechanism between a continuously-variable shifting state and a step-variable shifting state. A shifting control mechanism changes a manner of controlling shifting action of the transmission mechanism during shifting action of an automatic transmission portion, for reducing a shifting shock, depending upon whether a differential portion is placed in the continuously-variable shifting state in which engine speed is variable due to differential function irrespective of rotating speed of power transmitting member, or the non-continuously-variable shifting state in which the engine speed is more difficult to be variable than in the continuously-variable shifting state.
23 Citations
20 Claims
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1. A control apparatus for a vehicular drive system provided with a transmission mechanism constituted by a continuously-variable transmission portion operable as an electrically controlled continuously variable transmission, and a transmission portion, said continuously-variable transmission portion having a differential mechanism operable to distribute an output of an engine to a first electric motor and a power transmitting member, and a second electric motor disposed in a power transmitting path between the power transmitting member and a drive wheel of a vehicle, said transmission portion constituting a part of said power transmitting path, said control apparatus comprising:
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a differential-state switching device provided in said differential mechanism and operable to place said continuously-variable transmission portion in a selected one of a continuously-variable shifting state in which said continuously-variable transmission portion is operable as said electrically controlled continuously variable transmission portion, and a non-continuously-variable shifting state in which the continuously-variable transmission portion is not operable as the electrically controlled continuously variable transmission; and shifting control means for changing a manner of controlling a shifting action of said transmission mechanism during a shifting action of said transmission portion, depending upon whether the differential-state switching device places said continuously-variable transmission portion in said continuously-variable shifting state or in said non-continuously-variable shifting state, wherein said shifting control means positively changes a speed of said engine during the shifting action of said transmission portion, in said non-continuously-variable shifting state of said continuously-variable transmission portion, by using said first electric motor and/or said second electric motor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A control apparatus for a vehicular drive system provided with a transmission mechanism constituted by a differential portion operable as an electrically controlled continuously variable transmission, and a transmission portion, said differential portion having a differential mechanism operable to distribute an output of an engine to a first electric motor and a power transmitting member, and a second electric motor disposed in a power transmitting path between the power transmitting member and a drive wheel of a vehicle, said transmission portion constituting a part of said power transmitting path, said control apparatus comprising:
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a differential-state switching device provided in said differential mechanism and operable to place said differential portion in a selected one of a continuously-variable shifting state in which said differential portion is operable as said electrically controlled differential portion, and a non-continuously-variable shifting state in which the differential portion is not operable as the electrically controlled continuously variable transmission; and shifting control means for changing a manner of controlling a shifting action of said transmission mechanism during a shifting action of said transmission portion, depending upon whether the differential-state switching device places said differential portion in said continuously-variable shifting state or in said non-continuously-variable shifting stat; wherein said shifting control means positively changes a speed of said engine during the shifting action of said transmission portion, in said non-continuously-variable shifting state of said differential portion, by using said first electric motor and/or said second electric motor. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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Specification