Automatic transmission having torque converter with lockup...

Details Automatic transmission having torque converter with lockup... Automatic transmission having torque converter with lockup...

2008-04-29

2008-04-29

To, Tuan C (Department: 3663)

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

Transmission control

C701S067000, C477S175000, C477S169000, C477S115000, C192S1030FA

Reexamination Certificate

active

07366601

ABSTRACT:
When a downshift instruction has been detected, the oil pressure of a lookup clutch is controlled, and the state of operation of the automatic transmission is detected. If a starting condition has been met, a slip rotation speed of the lockup clutch is calculated, and if the calculated slip rotation speed is greater than or equal to a reference rotation speed, the calculated slip rotation speed is set as a target slip rotation speed. If a condition for converging the target slip rotation speed has been met, the target slip rotation speed is then converged to a steady target rotation speed.

REFERENCES:
patent: 5315897 (1994-05-01), Abe et al.
patent: 5319559 (1994-06-01), Kusaka et al.
patent: 5362286 (1994-11-01), Satoh et al.
patent: 5400678 (1995-03-01), Jain et al.
patent: 5410476 (1995-04-01), Iizuka
patent: 5416700 (1995-05-01), Bates et al.
patent: 5733223 (1998-03-01), Matsubara et al.
patent: 5916293 (1999-06-01), Katakura et al.
patent: 6039675 (2000-03-01), Adachi et al.
patent: 6077188 (2000-06-01), Futamura et al.
patent: 6217481 (2001-04-01), Watanabe et al.
patent: 2002/0019293 (2002-02-01), Noda et al.
patent: 2002/0065597 (2002-05-01), Katakura et al.
patent: 2002/0077218 (2002-06-01), Segawa et al.
patent: 2002/0175036 (2002-11-01), Takatori et al.
patent: 2003/0017912 (2003-01-01), Shimabukuro et al.
patent: 2003/0045400 (2003-03-01), Ito et al.
patent: 2003/0060330 (2003-03-01), Sato et al.
patent: 3-14965 (1991-01-01), None
patent: 6-331023 (1994-11-01), None
patent: 8-54055 (1996-02-01), None
patent: 9-60719 (1997-03-01), None
patent: 2758921 (1998-03-01), None
patent: 11-190424 (1999-07-01), None
patent: 2001-4020 (2001-01-01), None

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