Shift control apparatus for an automatic transmission
AssigneeMitsubishi Denki Kabushiki Kaisha
InventorShinji Watanabe
Life of this patent
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Abstract
A shift control apparatus for an automatic transmission includes a first transmission gear unit equipped with a clutch to clutch shift mechanism and a second transmission gear unit which is operatively connected in series with the first transmission gear unit and which is equipped with a clutch to one-way clutch shift mechanism. A clutch controller controls the clutch-to-clutch shift mechanism and the clutch to one-way clutch shift mechanism in such a manner that rotational synchronization of the clutch to one-way clutch shift mechanism is caused to take place earlier than or at the same time as rotational synchronization of the clutch to clutch shift mechanism when gear shifting is effected over the first and second transmission gear units.
Claims12
A shift control apparatus for an automatic transmission, comprising:
- a first transmission gear unit having a clutch to clutch shift mechanism;
- a second transmission gear unit having a clutch to one-way clutch shift mechanism, said first and second transmission gear units being operatively connected in series with each other;
- and
- control means for controlling said clutch-to-clutch shift mechanism and said clutch to one-way clutch shift mechanism in such a manner that rotational synchronization of said clutch to one-way clutch shift mechanism is caused to take place earlier than or at the same time as rotational synchronization of said clutch to clutch shift mechanism when gear shifting is effected over said first and second transmission gear units.
Dependencies are inferred from the claim text.