Control apparatus for controlling driving device of vehicle
First Claim
1. A control apparatus for controlling a driving device of a vehicle, the driving device including a transmission system including (A) a non-step speed change portion which includes (a1) a differential device including a first rotary element connected to an engine, a second rotary element connected to a first electric motor, and a third rotary element connected to a transmission member, and (a2) a second electric motor provided in a power transmission path between the transmission member and a plurality of drive wheels, and which functions as an electric, continuously variable transmission, and (B) a stepwise speed change portion which constitutes a portion of the power transmission path and functions as a stepwise automatic transmission, the control apparatus comprising:
- a differential-state switching device which is associated with the differential device and selectively switches the differential device to a differential state thereof in which the non-step speed change portion can operate as the electric continuously variable transmission, and to a non-differential state thereof in which the non-step speed change portion cannot operate as the electric continuously variable transmission; and
a rotation speed synchronization controller which, when a stepwise speed change control of the transmission system is performed, performs, with at least one of the first and second electric motors, a synchronization control of respective rotation speeds of the first, second, and third rotary elements, to respective rotation speeds thereof after completion of the stepwise speed change control.
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Accused Products
Abstract
A control apparatus for controlling a driving device of a vehicle, the driving device including a transmission system including (A) a non-step speed change portion which includes (a1) a differential device including a first rotary element connected to an engine, a second rotary element connected to a first electric motor, and a third rotary element connected to a transmission member, and (a2) a second electric motor provided in a power transmission path between the transmission member and drive wheels, and which functions as an electric CVT, and (B) a stepwise speed change portion which constitutes a portion of the power transmission path and functions as a stepwise automatic transmission, the control apparatus including a differential-state switching device which selectively switches the differential device to a differential state thereof in which the non-step speed change portion operates as the electric CVT, and to a non-differential state thereof in which the non-step speed change portion does not operate as the electric CVT; and a rotation speed synchronization controller which, when a stepwise speed change control of the transmission system is performed, performs, with the first and/or second motors, a synchronization control of respective rotation speeds of the first, second, and third rotary elements, to respective rotation speeds thereof after completion of the stepwise speed change control.
34 Citations
20 Claims
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1. A control apparatus for controlling a driving device of a vehicle, the driving device including a transmission system including (A) a non-step speed change portion which includes (a1) a differential device including a first rotary element connected to an engine, a second rotary element connected to a first electric motor, and a third rotary element connected to a transmission member, and (a2) a second electric motor provided in a power transmission path between the transmission member and a plurality of drive wheels, and which functions as an electric, continuously variable transmission, and (B) a stepwise speed change portion which constitutes a portion of the power transmission path and functions as a stepwise automatic transmission, the control apparatus comprising:
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a differential-state switching device which is associated with the differential device and selectively switches the differential device to a differential state thereof in which the non-step speed change portion can operate as the electric continuously variable transmission, and to a non-differential state thereof in which the non-step speed change portion cannot operate as the electric continuously variable transmission; and
a rotation speed synchronization controller which, when a stepwise speed change control of the transmission system is performed, performs, with at least one of the first and second electric motors, a synchronization control of respective rotation speeds of the first, second, and third rotary elements, to respective rotation speeds thereof after completion of the stepwise speed change control. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9, 10, 18, 19)
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2. A control apparatus for controlling a driving device of a vehicle, the driving device including a transmission system including (A) a non-step speed change portion which includes (a1) a differential device including a first rotary element connected to an engine, a second rotary element connected to a first electric motor, and a third rotary element connected to a transmission member, and (a2) a second electric motor provided in a power transmission path between the transmission member and a plurality of drive wheels, and which functions as an electric, continuously variable transmission, and (B) a stepwise speed change portion which constitutes a portion of the power transmission path and functions as a stepwise automatic transmission, the control apparatus comprising:
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a differential-state switching device which is associated with the differential device and selectively switches the differential device to a differential state thereof in which the non-step speed change portion can operate as the electric continuously variable transmission, and to a non-differential state thereof in which the non-step speed change portion cannot operate as the electric continuously variable transmission; and
a rotation speed synchronization controller which, when a stepwise speed change control of the transmission system is performed, performs, with at least one of the first and second electric motors, a synchronization control of a rotation speed of the engine to a rotation speed thereof after completion of the stepwise speed change control.
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11. A control apparatus for controlling a driving device of a vehicle, the driving device including a transmission system including (A) a differential system which includes (a1) a differential device including a first rotary element connected to an engine, a second rotary element connected to a first electric motor, and a third rotary element connected to a transmission member, and (a2) a second electric motor provided in a power transmission path between the transmission member and a plurality of drive wheels, and (B) a stepwise speed change portion which constitutes a portion of the power transmission path and functions as a stepwise automatic transmission, the control apparatus comprising:
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a differential-state switching device which is associated with the differential device and selectively switches the differential device to a differential state thereof in which the differential system exhibits a differential function, and to a non-differential state thereof in which the differential system does not exhibit the differential function; and
a rotation speed synchronization controller which, when a stepwise speed change control of the transmission system is performed, performs, with at least one of the first and second electric motors, a synchronization control of respective rotation speeds of the first, second, and third rotary elements, to respective rotation speeds thereof after completion of the stepwise speed change control. - View Dependent Claims (13, 14, 15, 16, 17, 20)
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12. A control apparatus for controlling a driving device of a vehicle, the driving device including a transmission system including (A) a differential system which includes (a1) a differential device including a first rotary element connected to an engine, a second rotary element connected to a first electric motor, and a third rotary element connected to a transmission member, and (a2) a second electric motor provided in a power transmission path between the transmission member and a plurality of drive wheels, and (B) a stepwise speed change portion which constitutes a portion of the power transmission path and functions as a stepwise automatic transmission, the control apparatus comprising:
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a differential-state switching device which is associated with the differential device and selectively switches the differential device to a differential state thereof in which the differential system exhibits a differential function, and to a non-differential state thereof in which the differential system does not exhibit the differential function; and
a rotation speed synchronization controller which, when a stepwise speed change control of the transmission system is performed, performs, with at least one of the first and second electric motors, a synchronization control of a rotation speed of the engine to a rotation speed thereof after completion of the stepwise speed change control.
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Specification